Showing papers on "Triphenyl phosphate published in 2014"
TL;DR: Levels of 12 organophosphate flame retardants (OPs) were measured in particle phase samples collected at five sites in the North American Great Lakes basin from March 2012 to December 2012 as discussed by the authors.
Abstract: Levels of 12 organophosphate flame retardants (OPs) were measured in particle phase samples collected at five sites in the North American Great Lakes basin from March 2012 to December 2012 (inclusive). The target compounds were three chlorinated OPs [tris(2-chloroethyl) phosphate (TCEP), tris(1-chloro-2-propyl) phosphate (TCPP), and tris(1,3-dichloro-2-propyl) phosphate (TDCPP)], three alkyl phosphates [tri-n-butyl phosphate (TnBP), tris(butoxyethyl) phosphate (TBEP), and tris(2-ethylhexyl) phosphate (TEHP)], and six aryl phosphates [triphenyl phosphate (TPP), tri-o-tolyl phosphate (TOTP), tri-p-tolyl phosphate (TPTP), tris(3,5-dimethylphenyl) phosphate (TDMPP), tris(2-isopropylphenyl) phosphate (TIPPP), and tris(4-butylphenyl) phosphate (TBPP)]. Total OP (ΣOP) atmospheric concentrations ranged from 120 ± 18 to 2100 ± 400 pg/m3 at the five sites, with the higher ΣOP levels detected at Cleveland and Chicago. ΣOP concentrations at these urban sites were dominated by the chlorinated OPs (TCEP, TCPP, and TDCP...
213 citations
TL;DR: The results demonstrate that particle bound OPEs are highly persistent in the atmosphere with regard to OH radical oxidation, consistent with the assumption that O PEs can undergo medium or long-range transport, as previously proposed on the basis of field measurements.
Abstract: Heterogeneous reactions between OH radicals and emerging flame retardant compounds coated on inert particles have been investigated. Organophosphate esters (OPEs) including triphenyl phosphate (TPhP), tris-2-ethylhexyl phosphate (TEHP), and tris-1,3-dichloro-2-propyl phosphate (TDCPP) were coated on (NH4)2SO4 particles and exposed to OH radicals in a photochemical flow tube at 298 K and (38.0 ± 2.0) % RH. The degradation of these particle-bound OPEs was observed as a result of OH exposure, as measured using a Time-of-Flight Aerosol Mass Spectrometer. The derived second-order rate constants for the heterogeneous loss of TPhP, TEHP, and TDCPP were (2.1 ± 0.19) × 10–12, (2.7 ± 0.63) × 10–12, and (9.2 ± 0.92) × 10–13 cm3 molecule–1 s–1, respectively, from which approximate atmospheric lifetimes are estimated to be 5.6 (5.2–6.0), 4.3 (3.5–5.6), and 13 (11–14) days. Additional coating of the OPE coated particles with an OH radical active species further increased the lifetimes of these OPEs. These results repre...
95 citations
TL;DR: In this paper, a thermal melt processing method to prepare halogen-free flame retardant poly(vinyl alcohol) (PVA) was successfully established by using water and triphenyl phosphate (TPP) as the internal plasticizer and external lubricant respectively, both of which also played the roles of flame retardants.
58 citations
TL;DR: In this paper, an extensive characterization of a standard Li-ion battery (LiB) electrolyte containing different concentrations of the flame retardant triphenyl phosphate (TPP) in the context of high power applications is presented.
44 citations
TL;DR: Results suggest that direct contact with flame retardant-treated textiles may be a source of exposure, and future studies will be needed to better characterize exposure, including via inhalation and dermal sorption from air.
Abstract: Concern has mounted over health effects caused by exposure to flame retardant additives used in consumer products. Significant research efforts have focused particularly on exposure to polybrominated diphenyl ethers (PBDEs) used in furniture and electronic applications. However, little attention has focused on applications in textiles, particularly textiles meeting a flammability standard known as CPAI-84. In this study, we investigated flame retardant applications in camping tents that met CPAI-84 standards by analyzing 11 samples of tent fabrics for chemical flame retardant additives. Furthermore, we investigated potential exposure by collecting paired samples of tent wipes and hand wipes from 27 individuals after tent setup. Of the 11 fabric samples analyzed, 10 contained flame retardant additives, which included tris(1,3-dichloroisopropyl) phosphate (TDCPP), decabromodiphenyl ether (BDE-209), triphenyl phosphate, and tetrabromobisphenol-A. Flame retardant concentrations were discovered to be as high a...
30 citations
TL;DR: The aircraft maintenance technicians were occupationally exposed to tributyl and triphenyl phosphate but not to tricresyl phosphate, tri-(2-chloroethyl)- and tri-chloropropyl)-phosphate.
23 citations
Patent•
05 Feb 2014
TL;DR: In this paper, a formula of flame-retardant polyvinyl chloride (PVC) plastics is characterized by comprising PVC and supplementary additives, wherein the supplementary additives include a flame retardant, a mildew preventive, an antistatic agent, heat-resisting agent, a crosslink agent and a coupling agent.
Abstract: The invention discloses a formula of flame-retardant polyvinyl chloride (PVC) plastics The formula is characterized by comprising PVC and supplementary additives, wherein the supplementary additives include a flame retardant, a mildew preventive, an antistatic agent, a heat-resisting agent, a crosslink agent and a coupling agent, the flame retardant is triphenyl phosphate and ammonium polyphosphate, the mildew preventive is 8-hydroxyquinoline copper, the antistatic agent is sodium alkyl sulfate, the heat-resistant agent is 2-ethylhexyl thioglycolate, the crosslink agent is 2,5-dimethyl-2,5 bis(tert-butyl peroxy hexane and the coupling agent is aminopropyltriethoxysilane The flame retardant is used for improving the flame-retardant property of the PVC plastics; by adding multiple assistants in the flame-retardant PVC plastics, the heat resistance and the antistatic property of the flame-retardant PVC plastics can be improved, the stability of the flame-retardant PVC plastics also can be improved, and the production cost can be reduced by accelerating the reaction speed and reducing the consumption of raw materials
15 citations
Patent•
01 Oct 2014
TL;DR: In this paper, a method for detecting transfer volume of phosphate ester plasticisers in acid sweat in textile was proposed, which comprises the following steps: utilizing a to-be tested sample to establish a transfer system so as to obtain a transfer liquid; utilizing the transfer liquid to prepare a to be-tested sample solution, and injecting both of the gradient standard solution and the supernatant liquid into a gas chromatograph or a GC mass spectrometer, and performing flame photometry detector testing or selected ion monitoring mode testing.
Abstract: The invention discloses a method for detecting transfer volume of phosphate ester plasticisers in acid sweat in textile. The method comprises the following steps: utilizing a to-be-tested sample to establish a transfer system so as to obtain a transfer liquid; utilizing the transfer liquid to prepare a to-be-tested sample solution so as to obtain a supernatant liquid; preparing the phosphate ester plasticisers into a gradient standard solution; injecting both of the gradient standard solution and the supernatant liquid into a gas chromatograph or a gas chromatograph-mass spectrometer, and performing flame photometry detector testing or selected ion monitoring mode testing so as to obtain the content of the phosphate ester plasticisers in the supernatant liquid; finally obtaining content of the phosphate ester plasticisers in the to-be-tested sample. The phosphate ester plasticisers are triphenyl phosphate, tri-ortho-cresyl phosphate, cresyl phosphate, tri-o-cresyl phosphate, tributyl phosphate, trioctyl phosphate, dpof diphenyl octylphosphate, cresyl diphenyl phosphate isomer CDP I and cresyl diphenyl phosphate isomer CDP II.
5 citations
Patent•
11 Jun 2014
TL;DR: A thermoplastic flame-retardant elastomer used for glass fiber reinforcement of a cable is described in this article, which has good tensile ductility, great strength and a good flame retardation effect.
Abstract: The invention discloses a thermoplastic flame-retardant elastomer used for glass fiber reinforcement of a cable. The thermoplastic flame-retardant elastomer comprises the following raw materials by weight: 100 parts of a matrix resin, 20 to 40 parts of a fire retardant, 30 to 40 parts of a glass fiber, 10 to 30 parts of a plasticizer, 5 to 20 parts of a compatilizer, 1 to 2 parts of a lubricant and 1 to 2 parts of an anti-oxidant, wherein the matrix resin is one selected from or a mixture of phenyl ether and polyurethane, the fire retardant is one selected from or a mixture of ammonium polyphosphate and triphenyl phosphate, the plasticizer is one selected from or a mixture of saturated straight-chain alkane oil and cycloalkane oil, the compatilizer is oligosiloxane, the lubricant is one selected from or a mixture of siloxane and erucamide, and the anti-oxidant is one selected from or a mixture of a hindered phenol anti-oxidant, a phosphite anti-oxidant and a thioester anti-oxidant. The elastomer disclosed in the invention has good thermoplastic, strong tensile ductility, great strength and a good flame retardation effect.
3 citations
Patent•
02 Apr 2014
TL;DR: In this paper, an environment-friendly halogen-free flame-retardant hot melt adhesive membrane is proposed for electronics industry, which is non-toxic, does not generate thick smoke during combustion, and satisfies environment friendly requirements.
Abstract: The invention relates to an environment-friendly halogen-free flame-retardant hot melt adhesive membrane applied to electronics industry and a preparation method of the membrane. The environment-friendly halogen-free flame-retardant hot melt adhesive membrane consists of the following materials in parts by weight: 20-50 parts of polyester hot melt adhesive, 15-30 parts of a nitrogen-phosphor compound flame retardant, 20-45 parts of melamine cyanurate and 5-20 parts of TPP (Triphenyl Phosphate), wherein a main component of the nitrogen-phosphor compound flame retardant is ammonium polyphosphate which is added with nitrogen-series synergist. The halogen-free flame-retardant hot melt adhesive membrane applied to electronics industry is non-toxic, does not generate thick smoke during combustion, and satisfies environment-friendly requirements.
3 citations
Patent•
03 Dec 2014
TL;DR: In this paper, a light-resistant light calcium carbonate filler, which is prepared from the following raw materials in parts by weight: 3-4 parts of polyvinyl alcohol superfine powder, 0.3-0.5 parts of trimellitic acid decyl octyl ester, 1-1.3 parts of boron oxide, 1.6 parts of dibutyl succinate, 1 2 parts of triphenyl phosphate, 1 -2 parts of arabic gum and 0.1- 0.2 part of fatty alcohol
Abstract: The invention discloses a light-resistant light calcium carbonate filler, which is prepared from the following raw materials in parts by weight: 3-4 parts of polyvinyl alcohol superfine powder, 0.3-0.5 part of calcium nitrate tetrahydrate, 3-5 parts of nanometer titania, 2-2.5 parts of trimellitic acid decyl octyl ester, 1-1.3 parts of boron oxide, 1.3-1.6 parts of dibutyl succinate, 1-2 parts of triphenyl phosphate, 1-2 parts of arabic gum, 0.1-0.2 part of fatty alcohol-polyoxyethylene ether, 0.1-0.2 part of sorbitan oleate, 85-89 parts of light calcium carbonate, 13-16 parts of an assistant and 120-140 parts of water. The nanometer titania and the triphenyl phosphate are added to the filler disclosed by the invention, so that the ageing resistance and the strength of the PVC can be increased, the flame retardant property of the PVC can be increased by adding the boron oxide, and the calcium carbonate has good dispersibility, good compatibility with PVC and good reinforcing performance by adding the dibutyl succinate, the arabic gum and the surfactant and combining an excellent modification technology.
Patent•
11 Jun 2014
TL;DR: In this paper, a halogen-free flame-retardant cable sheath material was presented, consisting of 100 parts of a matrix resin, 10 to 50 parts of fire retardant, 30 to 40 parts of reinforcement agent, 5 to 20 parts of compatilizer and 1 to 2 parts of an anti-oxidant, wherein the matrix resin is a segmented copolymer of ethylene-vinyl acetate, the reinforcing agent is a glass bead, the compatiliser is oligosiloxane, the lubricant is one selected from or
Abstract: The invention discloses a halogen-free flame-retardant cable sheath material. The material comprises the following raw materials by weight: 100 parts of a matrix resin, 10 to 50 parts of a fire retardant, 30 to 40 parts of a reinforcing agent, 5 to 20 parts of a compatilizer, 1 to 2 parts of a lubricant and 1 to 2 parts of an anti-oxidant, wherein the matrix resin is a segmented copolymer of ethylene-vinyl acetate, the fire retardant is one selected from or a mixture of ammonium polyphosphate and triphenyl phosphate, the reinforcing agent is a glass bead, the compatilizer is oligosiloxane, the lubricant is one selected from or a mixture of siloxane and erucamide, and the anti-oxidant is one selected from or a mixture of a hindered phenol anti-oxidant, a phosphite anti-oxidant and a thioester anti-oxidant. The cable sheath material disclosed in the invention has the advantages of simple composition, widely available raw materials, convenient production and usage, low pollution, good flame retardation and insulation effects and good ductility and anti-oxidation corrosion performance.
01 Jan 2014
TL;DR: Melamine-formaldehyde polymer-wall microcapsules with a triphenyl phosphate core were applied to both a cotton woven and a polyester nonwoven fabric using impregnation and screen printing as discussed by the authors.
Abstract: A microencapsulated fire retardant was used with the intention to produce fire retardant textiles. Melamine-formaldehyde polymer-wall microcapsules with a triphenyl phosphate core were applied to both a cotton woven and a polyester nonwoven fabric using impregnation and screen printing. The samples were observed with a scanning electron microscope (SEM). The combustion performance of the textile samples was examined with the limiting oxygen index (LOI) and the vertical burning test. The thermal properties of the microcapsules and fabrics were examined using TGA and DSC analyses. The mass per unit area, rigidity and air permeability of the treated fabrics were tested. The results show that the microcapsules with triphenyl phosphate can be successfully applied to cotton and polyester fabrics using screen printing and impregnation methods, but the fire retardation was successful only at the highest concentration of the microcapsules. At this concentration, the mechanical properties of the starting materials appear to deteriorate.
Patent•
10 Jul 2014
TL;DR: In this paper, a filling compound for fireproof glazing is described, which contains epoxy resin Epoxy-520, tricresyl phosphate, triphenyl phosphate and triethylene tetramine.
Abstract: FIELD: chemistry.SUBSTANCE: filling compound for fireproof glazing contains epoxy resin Epoxy-520, a plasticiser - tricresyl phosphate, a fire-retardant - triphenyl phosphate and a curing agent - triethylene tetramine.EFFECT: invention provides a higher fire-resistance rating of structures and prevents leakage of the compound from multilayer glass under high temperatures.1 tbl
Patent•
07 May 2014
TL;DR: In this paper, an ABS (acrylonitrileitrile-butadiene-styrene) flame-retardant plastic which is prepared from the following raw materials in parts by weight: 70-76 parts of ABS, 9-12 parts of organic silicon resin, 8-10 parts of trimethylsilyl dimethyl methyl phosphonate, 7-9 parts of metastannic acid, 8 -10 part of triphenyl phosphate, 8 − 10 parts of hollow glass beads, 4 − 7 parts of triphensyl phosphate and 5 −
Abstract: The invention discloses an ABS (acrylonitrile-butadiene-styrene) flame-retardant plastic which is prepared from the following raw materials in parts by weight: 70-76 parts of ABS, 9-12 parts of organic silicon resin, 8-10 parts of trimethylsilyl dimethyl methyl phosphonate, 7-9 parts of metastannic acid, 8-10 parts of triphenyl phosphate, 8-10 parts of hollow glass beads, 4-7 parts of triphenyl phosphate, 5-7 parts of resorcinol bis-diphenylphosphate, 5-8 parts of zinc borate and 5-6 parts of montmorillonite. The flame-retardant plastic can not be easily combusted under high-temperature or other hazardous conditions, is safer to use, has uniform and stable elasticity, can not deform after long-term usage, and also has favorable properties in other high polymer materials, such as the advantages of high strength, favorable toughness, favorable freezing resistance and the like.
Patent•
11 Mar 2014
TL;DR: In this article, a production method of a polyethylene terephthalate polymer resin in which triphenyl phosphate, a phosphorus-based flame-retardant is applied to a molecule structure by forming functional groups on the polyethylenes terephosphate and the triphensyl phosphate using a persulfate based or peroxide based reaction catalyst, and producing a covalent bond through a radical additional reaction.
Abstract: The present invention relates to: a production method of a polyethylene terephthalate polymer resin in which triphenyl phosphate, a phosphorus based flame-retardant is applied to a molecule structure by forming functional groups on the polyethylene terephthalate and the triphenyl phosphate using a persulfate based or peroxide based reaction catalyst, and producing a covalent bond through a radical additional reaction; and the flame-retardant polyethylene terephthalate polymer resin produced by the method [Reference numerals] (AA) Example 1; (BB) Pure PET
Patent•
26 Mar 2014
TL;DR: In this article, modified antibacterial polyformaldehyde plastics which comprise the following ingredients: 170 parts of poly-formaldehyde, 10 parts of calcium carbonate, 6 parts of calcine stearate, six parts of ethylene glycol treatment agent, 7 parts of flexibilizer, 20 parts of titanium dioxide, 2 parts of glass fiber, 5 parts of phenolic resin and 4 parts of triphenyl phosphate.
Abstract: The invention relates to modified antibacterial polyformaldehyde plastics which comprise the following ingredients: 170 parts of polyformaldehyde, 10 parts of calcium carbonate, 6 parts of calcium stearate, 6 parts of ethylene glycol treatment agent, 7 parts of flexibilizer, 20 parts of titanium dioxide, 2 parts of glass fiber, 5 parts of phenolic resin and 4 parts of triphenyl phosphate. The prepared plastics have good mechanical property, good tensile strength and good impact resistance, and particularly the notch impact resistance is good. The prepared plastics have better mechanical property and forming processing performance.
Patent•
22 Jan 2014
TL;DR: In this paper, a flame retardant composite material with double polymer components, consisting of a flame-retardant and a polymeric component, was presented, where the flame-resistance and mechanical performance of the composite material was evaluated.
Abstract: The invention provides a flame retardant composite material with double polymer components, belonging to the high polymer material field The flame retardant composite material is composed of a flame retardant and a polymer, wherein the flame retardant is selected from at least two of ammonium polyphosphate, pentaerythritol, triphenyl phosphate, zinc borate and a liquid crystal flame retardant, and the flame retardant is 9%-15% in percent by weight; the polymer is selected from two components of polyethylene, polypropylene, polystyrene, acrylonitrile-butadiene-styrene copolymer, polycarbonate, nylon, polyvinyl chloride, epoxy resin, ethylene-acrylic acid copolymer, ethylene-acrylate copolymer, ethylene-octylene copolymer and ternary ethylene propylene rubber, and the two components form a two-phase separated bicontinuous phase The invention further provides a preparation method of the flame retardant composite material with the double polymer components The flame retardant composite material with the double polymer components disclosed by the invention is less in dosage of the flame retardant, and has good flame resistance and mechanical performances, and good environment-friendly value and economical value
Patent•
13 Aug 2014
TL;DR: In this article, a fire-resistant polyphosphate and ammonium polyphoric acid (APPA)-based fireproof coating is described, which has good fire resistance and is low in cost, excellent in performance, and full-featured.
Abstract: The invention discloses a fireproof coating and a preparation method thereof The fireproof coating is prepared from the following components in parts by weight: 40-55 parts of ammonium polyphosphate, 12-20 parts of kaolin, 12-20 parts of micalex, 8-12 parts of tert-hexadecanethiol, 5-10 parts of urea, 5-10 parts of triphenyl phosphate di-glycidyl ester, 5-8 parts of whiskers, and 3-6 parts of benzoperoxide n-butyl acetate The fireproof coating prepared according to the preparation method disclosed by the invention has good fire resistance and is low in cost, excellent in performance, and full-featured, and can be applied to the fields of automobiles, aircrafts, electron devices and the like
Abstract: This article has no abstract.
Keywords:
triisobutyl phosphate;
TIBP ;
tri-n-butyl phosphate;
TBP;
tris(2-chloroethyl) phosphate;
TCEP;
tris(1-chloro-2-propyl) phosphate;
TCPP;
tris(1,3-dichloro-2-propyl) phosphate;
TDCPP;
triphenyl phosphate;
TPP;
tris(2-butoxyethyl) phosphate;
TBEP;
2-ethylhexyl diphenyl phosphate;
EHDPP;
tris(2-ethylhexyl) phosphate;
TEHP;
tri-o-cresyl phosphate;
TOCP;
tricresyl phosphate;
TCP;
gas chromatography;
mass spectrometry;
GC-MS;
workplace measurement;
air analysis;
occupational monitoring;
analytical method;
hazardous substance;
measurement procedure;
expanded uncertainty;
personal sampling;
stationary sampling
Patent•
[...]
26 Mar 2014
TL;DR: The technical scheme adopted by the invention is a novel fire retardant, which comprises ammonium phosphate and ammonium tetraborate, and 15-20 parts of release agent.
Abstract: The invention provides a novel fire retardant The technical scheme adopted by the invention is a novel fire retardant The novel fire retardant comprises ammonium phosphate The novel fire retardant is characterized by also comprising the following components in parts by weight: 5-10 parts of sodium tetraborate, 5-10 parts of intumescent flame retardant, 5-10 parts of triphenyl phosphate and 15-20 parts of release agent Compared with the prior art, the novel fire retardant has the beneficial effect that the novel fire retardant has a good fire control effect by adding the sodium tetraborate, the intumescent flame retardant, the triphenyl phosphate and the release agent
01 Jan 2014
TL;DR: In this paper, a microcapsulated fire retardant was used with the intention to produce fire-retardant textiles, and the results showed that the microcapsules with triphenyl phosphate can be sucessfully applied to cotton and polyester fabrics using screen printing and impregnation methods.
Abstract: A microcapsulated fire retardant was used with the intention to produce fire retardant textiles. Melamine-formaldehyde polymer-wall microcapsules with triphenyl phosphate core were applied both a cotton woven and a polyester nonwoven fabric using impregnation and screen printing. The samples were observed with a scanning electron microscope (SEM). The combustion performance of the textile samples was examined with the limiting oxygen index (LOI) and the vertical burning test. The thermal properties of the microcapsules and fabrics were examined using TGA and DSC analyses.The mass per unit area, rigidity and air permeability of the treated fabrics were tested. The results show that the microcapsules with triphenyl phosphate can be sucessfully applied to cotton and polyester fabrics using screen printing and impregnation methods, but the fire retardantion was sucessful only at the highest concentration of the microcapsules. Atthis concentration, the mechanical properties of the starting material appear to deteriorate.
Patent•
27 Aug 2014
TL;DR: In this article, a choline ester quaternary ammonium salt clay stabilizer and a preparation method thereof are described, where the choline salt compound is converted into an ester group, so as to improve the structure stability and the charge.
Abstract: The invention relates to a phosphite choline ester quaternary ammonium salt clay stabilizer and a preparation method thereof. The chemical formula of the phosphite choline ester quaternary ammonium salt clay stabilizer is as shown in the specification; in the formula I, X is Cl , Br , I , CH3COO-, HCOO or NO . The preparation method comprises the following steps: by taking triphenyl phosphate and a choline salts compound as raw materials, carrying out transesterification at 70-120 DEG C for 6-18 hours in a mixed solvent system of a base catalyst and pyridine/dimethyl sulfoxide; preparing the phosphite choline ester quaternary ammonium salt clay stabilizer. The phosphite choline ester quaternary ammonium salt clay stabilizer prepared by the method disclosed by the invention is designed on the structure of the choline salt compound, and hydroxy in the choline salt compound is converted into an ester group, so as to improve the structure stability and the charge. The prepared phosphite choline ester quaternary ammonium salt clay stabilizer can be used as a clay stabilizer, an anti-swelling agent and the like. The permeability of an oil and gas reservoir can be prevented from being damaged as much as possible by inhibiting hydrating swelling and dispersing migration of clay mineral particles in the reservoir in reservoir waterflood recovery operations.
Patent•
18 Jun 2014
TL;DR: In this paper, a fire retardant is prepared from the following components in parts by weight: 23 to 28 parts of triphenyl phosphate, 16 to 22 parts of diammonium hydrogen phosphate, 5 to 10 parts of magnesium hydroxide, 3 to 10 part of diatomite, 1 to 3 parts of silane coupling agent and 37 to 47 parts of water.
Abstract: The invention relates to a fire retardant and a preparation method thereof. The fire retardant is prepared from the following components in parts by weight: 23 to 28 parts of triphenyl phosphate, 16 to 22 parts of diammonium hydrogen phosphate, 5 to 10 parts of magnesium hydroxide, 3 to 10 parts of diatomite, 1 to 3 parts of silane coupling agent and 37 to 47 parts of water. The preparation method comprises the following steps of: heating; stirring; smashing; and heat preservation. The prepared fire retardant is good in flame retardance and environmental friendliness, and can be widely applied to the fields of plastics, rubbers and the like.
Journal Article•
TL;DR: In this paper, the effect of additive on turbine base oil properties was studied and the results showed that the properties of additive blended with base oil depend upon the base oil and the concentration of the additive used.
Abstract: 1,2,3 Department of Chemical Engineering 4 Department of Chemistry 1,2 R. V. College of Engineering 3 Siddaganga Institute of Technology 4 DayanandaSagar College of Engineering Abstract— Lubricating oils play a vital role in our modern automotive, aviation and power generation industries. These oils are formulated by blending a special purpose base oils with suitable additives to enhance the base oil properties suitable for particular application. The main aim of this research is to study the effect of additives on turbine base oil. The main focus of this study is to evaluate the oils obtained from mixture of base oil and additives for its physic-chemical properties. The values so obtained were compared with commercially available turbine oil in market. The values of the properties of additive blended with base oil depends upon the base oil and the concentration of the additive used.
Patent•
16 Jul 2014
TL;DR: In this paper, a method for measuring the precipitation amount of triphenyl phosphate in a TAC film was proposed, which comprises the following steps: step A, adding an extraction agent into alkaline liquor in which TAC is treated for extracting the alkyaline liquor, merging extracting solutions on the upper layer, and making up to volume, thereby obtaining a sample; step B, dissolving the sample by a solvent, thereby preparing a standard solution; step C, sequentially adding the standard solution into a gas chromatograph-mass spectrometer, determining the peak
Abstract: The invention provides a method for measuring the precipitation amount of triphenyl phosphate in a TAC film. The method comprises the following steps: step A, adding an extraction agent into alkaline liquor in which TAC is treated for extracting the alkaline liquor, merging extracting solutions on the upper layer, and making up to volume, thereby obtaining a sample; step B, dissolving the sample by a solvent, thereby preparing a standard solution; step C, sequentially adding the standard solution into a gas chromatograph-mass spectrometer, determining the peak position of triphenyl phosphate in a total ion chromatogram, recording the peak area, and drawing a standard working curve in the concentration range; and step D, testing a sample S under the same gas chromatography-mass spectrometry condition, and quantifying triphenyl phosphate in the sample. The method has the beneficial effects that the precipitation amount of triphenyl phosphate during pretreatment of a TAC film in a polarizer production process can be monitored, the saturation process of triphenyl phosphate in a pretreatment solution can be monitored, and the method has great significance for preventing and eliminating the defects of a foreign body glue in a polarizer.
Patent•
08 Oct 2014
TL;DR: In this paper, a special filler for a flame-retardant capacitor film is presented. But the filler is not suitable for the use in the case of polypropylene films.
Abstract: The invention provides special filler for a flame-retardant capacitor film. The special filler is prepared from the following raw materials in parts by weight: 6-9 parts of triphenyl phosphate, 0.3-0.5 part of epoxy oleic acid butyl ester, 6-8 parts of aluminum hydroxide, 2-3 parts of ammonium polyphosphate, 3-4 parts of iron ore slag, 0.4-0.6 part of vinyl ester succinate, 0.3-0.5 part of phthalic diglycol diacrylate, 0.4-0.6 part of octadecanol, 2-3 parts of melamine, 50-55 parts of clay, a proper amount of 4-6% hydrochloric acid, a proper amount of water and 15-20 parts of adjuvant. According to the invention, due to the addition of triphenyl phosphate, ammonium polyphosphate and aluminum hydroxide, the flame retardance of the filler is good, meanwhile, the filler is fine and uniform in particle, good in reinforcing property and capable of greatly improving the tearing strength and impact strength of a polypropylene film; due to the addition of clay, the cost is reduced; and due to the adoption of adjuvant, the dispersibility and reinforcing property of the filler can be improved, and the strength and impact toughness of the film can be improved.