Showing papers in "High Performance Polymers in 2019"
TL;DR: Melamine (M), phenol (P) and formaldehyde (F) were used as raw materials to synthesize a melamine-phenol-formaldehyde resin (MPF) which was used as shell material to prepare a self-healing microcap as discussed by the authors.
Abstract: Melamine (M), phenol (P) and formaldehyde (F) were used as raw materials to synthesize a melamine–phenol–formaldehyde resin (MPF) which was used as shell material to prepare a self-healing microcap...
67 citations
TL;DR: Polyetherimide (PEI) is a kind of high-performance polymer which possesses a high glass transition temperature (Tg), excellent flame retardancy, low smoke generation, and good mechanical proper tie.
Abstract: Polyetherimide (PEI) is a kind of high-performance polymer, which possesses a high glass transition temperature (Tg), excellent flame retardancy, low smoke generation, and good mechanical propertie...
46 citations
TL;DR: In this paper, a phosphorus-nitrogen-containing flame retardant (DOPO-T) was successfully synthesized by nucleophilic substitution reaction between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10ox...
Abstract: In this article, a phosphorus–nitrogen-containing flame retardant (DOPO-T) was successfully synthesized by nucleophilic substitution reaction between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-ox...
45 citations
TL;DR: In this article, the authors used both silk fibroin nanofibers and rice husk silica nanoparticles as epoxy (EP) resin reinforcement materials to improve the modes I and II interlaminar fracture toughne...
Abstract: In this study, we used both silk fibroin nanofibers (nSFs) and rice husk silica nanoparticles as epoxy (EP) resin reinforcement materials to improve the modes I and II interlaminar fracture toughne...
24 citations
TL;DR: The high strength of multiwalled carbon nanotubes (MWCNTs) indicates promising properties for industry applications to reduce frictional coefficient and improve mechanical properties, yet few resea
Abstract: The high strength of multiwalled carbon nanotubes (MWCNTs) indicates promising properties for industry applications to reduce frictional coefficient and improve mechanical properties, yet few resea
24 citations
TL;DR: In this paper, a new nanofibrous membrane (NFM) was prepared by blending polyethersulfone (PES) and sulfonated poly(ether ether ketone) (SPEEK) via electrospinning.
Abstract: A new nanofibrous membrane (NFM) was prepared by blending polyethersulfone (PES) and sulfonated poly(ether ether ketone) (SPEEK) via electrospinning. The membrane exhibits good thermal stability an...
22 citations
TL;DR: In this paper, two kinds of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10oxide (DOPO)-based phosphonamidate flame retardants named 4,4′-diamino-diphenyl methane (DDM) and morpholine (MPL) were proposed.
Abstract: In this work, two kinds of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-based phosphonamidate flame retardants named 4,4′-diamino-diphenyl methane (DDM)-DOPO and morpholine (MPL)-DOPO ...
22 citations
TL;DR: The investigation and design of new polymeric materials with an astonishing combination of properties are nowadays of great importance to facilitate the manufacturing process of high-quality polymeric products as discussed by the authors, which can be found in the literature.
Abstract: The investigation and design of new polymeric materials with an astonishing combination of properties are nowadays of great importance to facilitate the manufacturing process of high-quality produc...
19 citations
TL;DR: In this article, thermally conductive epoxy composites of 3D boron nitride (BN) networks were synthesized via a facile template method, wherein an epoxy was infiltrated into the network.
Abstract: Thermally conductive epoxy composites of 3-D boron nitride (BN) networks were synthesized via a facile template method, wherein an epoxy was infiltrated into the network. The 3-D BN network skeleto...
19 citations
TL;DR: In this paper, a polyimide (PI) mixed matrix membrane (MMMMM) was used for gas permeation measurements of carbon dioxide (CO2) and methane (CH4) and the results indicated that PI/SNW-1 had maintained a high thermal stability and uniform distribution of filler.
Abstract: More and more polyimide (PI) mixed matrix membranes (MMMs) have been reported for gas separation. In this study, a novel PI MMM, named as PI/SNW-1 and composed of PI and Schiff base network (SNW) type covalent organic frameworks (COFs) SNW-1, was used for gas permeation measurements of carbon dioxide (CO2) and methane (CH4). The prepared PI/SNW-1 was investigated by the Fourier transform infrared spectroscopy, the field emission scanning electron microscopy, and the thermal gravimetric analysis. The results indicated that PI/SNW-1 had maintained a high thermal stability and uniform distribution of filler. Compared with the pure PI membrane, MMMs showed an increment of 48.7% in ideal selectivity of CO2/CH4 and an enhancement of 106.4% in CO2 permeability at 5 wt% SNW-1. The enhancement of permeability and selectivity was mainly attributed to the high porosity of SNW-1, the specific sorption affinity for CO2, and the close interface interaction with the PI matrix. It can be seen that PI/SNW-1 has a great po...
18 citations
TL;DR: In this article, high performance epoxy-carbon nanotube (CNT) nanocomposites were prepared by simultaneous use of ultrasonication and mechanical stirring, and the dynamic and static mechanical properties and wetting properties were analyzed.
Abstract: High-performance epoxy-carbon nanotube (CNT) nanocomposites were prepared by simultaneous use of ultrasonication and mechanical stirring. The dynamic and static mechanical properties and wetting pr...
TL;DR: In this paper, the erosion resistances of ethylene propylene diene monomer (EPDM) insulations are often inadequate for advanced solid rocket motor (SRM) applications.
Abstract: The erosion resistances of ethylene propylene diene monomer (EPDM) insulations are often inadequate for advanced solid rocket motor (SRM) applications. EPDM modification by blending secondary matri...
TL;DR: In this paper, the authors suppress the high dielectric loss of graphene oxide (GO)/poly(vinylidene fluoride) (PVDF) while maintaining a high Dielectric constant (high-k) near the percolation threshold.
Abstract: To suppress the high dielectric loss of graphene oxide (GO)/poly(vinylidene fluoride) (PVDF) while maintaining high dielectric constant (high-k) near the percolation threshold, in this study, GO na...
TL;DR: Boron nitride-hydroxyl (BN-OH) was synthesized with silane coupling agent (KH550) in order to achieve epoxy/BN nanocomposites with excellent thermal, tribological, and mechanical properties as mentioned in this paper.
Abstract: Boron nitride-hydroxyl (BN–OH) was synthesized with silane coupling agent (KH550) in order to achieve epoxy/BN nanocomposites with excellent thermal, tribological, and mechanical properties. This i...
TL;DR: In this paper, a series of composite materials by using a catechol-based phthalonitrile resin as the matrix, and hexagonal boron nitride (h-BN) nanoparticles as the fillers to impr...
Abstract: In this study, we have prepared a series of composite materials by using a catechol-based phthalonitrile resin as the matrix, and hexagonal boron nitride (h-BN) nanoparticles as the fillers to impr...
TL;DR: In this article, polyaniline nanofibers/reduced graphene oxide (PANI-NFs/rGO) nanocomposites were prepared by a one-pot hydrothermal method.
Abstract: In this article, polyaniline nanofibers/reduced graphene oxide (PANI-NFs/rGO) nanocomposites were prepared by a one-pot hydrothermal method. Under the condition of high temperature and high pressur...
TL;DR: N-substituted metal-coordinated cross-linking polybenzimidazole pyridine sulfone has been obtained by the coordination of N-substantituted poly....
Abstract: N-substituted metal-coordinated cross-linking polybenzimidazole pyridine sulfone, as novel class of high-performance functional polymers, has been obtained by the coordination of N-substituted poly...
TL;DR: In this paper, a polyimide (PI) nanofiber membrane was successfully prepared from a PI/N-methyl-2-pyrrolidone (NMP) solution via electrospinning.
Abstract: Polyimide (PI) nanofiber membranes were successfully prepared from a PI/N-methyl-2-pyrrolidone (NMP) solution via electrospinning. This technique simply and facilely produced efficient high-performance PI fibers. The morphology, surface wettability, thermal stability, mechanical properties, and filtration performance of the as-prepared PI nanofiber membranes were characterized in detail. The membranes exhibited smooth and hydrophobic surfaces. The nanofibers were well distributed in the membranes with fiber diameters in the range of 140–400 nm. All the PI nanofiber membranes showed excellent thermostability, and their initial decomposition temperature (Td) and heat resistance temperature (THRI) exceeded 544.4°C and 198.8°C, respectively. The PI nanofiber membranes also possessed reasonable mechanical properties with a tensile strength and a Young’s modulus reaching 10.5 and 927.6 MPa, respectively. Regarding the filtration performance, the developed nanofiber membranes achieved the best filtration efficie...
TL;DR: In this paper, the authors describe the advantages of fibrous membranes, including uniform pore size, large ratio surface area, and high porosity, for extended applica-tion.
Abstract: Electrospinning fibrous membranes have attracted a great deal of attention because of their advantages, including uniform pore size, large ratio surface area, and high porosity. For extended applic...
TL;DR: A series of polyimide (PI) composite films were prepared using PI as matrix and boron nitride (BN) and aluminum nitride(AlN) as the doped phases.
Abstract: A series of polyimide (PI) composite films were prepared using PI as matrix and boron nitride (BN) and aluminum nitride (AlN) as the doped phases. The modification of the thermal conductive filler ...
TL;DR: In this paper, PTA and POSS were simultaneously incorporated into the cured network of a bisphenol F epoxy resin and 4,4′-diaminodiphenyl meth.
Abstract: Phosphoric triamide (PTA) and glycidyl polyhedral oligomeric silsesquioxane (POSS) were simultaneously incorporated into the cured network of a bisphenol F epoxy resin and 4,4′-diaminodiphenyl meth...
TL;DR: In this article, a novel sulfonated polyimide (SPI) membrane embedded with the phosphotungstic acid (PWA) membrane for vanadium redox flow battery (VRB) has been prepared with low capacity loss, low cost, and high capacity.
Abstract: A novel sulfonated polyimide (SPI) membrane embedded with the phosphotungstic acid (SPI/PWA membrane) for vanadium redox flow battery (VRB) has been prepared with low capacity loss, low cost, and h...
TL;DR: In this article, a strategy for further simplifying the synthesis process of polyaniline-modified graphene (An/G) nanocomposite was reported, and the An/G nanocompositionite was prepared by expanded expanded polyamide.
Abstract: This study reports a strategy for further simplifying the synthesis process of polyaniline-modified graphene (An/G) nanocomposite. For this purpose, the An/G nanocomposite was prepared by expanded ...
TL;DR: A flame-retardant additive, 6,6′,6″-((1,3,5-triazine-2,4,6 triyl) tris (azanediyl)) tris(dibenzo[c,e][1,2]oxaphosphinine 6-oxide) (DOPO-M), was synthesized from melamine and 9,10-dihy-dro-9-...
Abstract: A novel flame-retardant additive, 6,6′,6″-((1,3,5-triazine-2,4,6 triyl) tris (azanediyl)) tris (dibenzo[c,e][1,2]oxaphosphinine 6-oxide) (DOPO-M), was synthesized from melamine and 9,10-dihy-dro-9-...
TL;DR: A series of co-polyimide (co-PI) resins with distorted noncoplanar structure were carefully designed and successfully fabricated by copolycondensation of 2,3,3′,4′-biphenyltetracarboxylic dianhydri as discussed by the authors.
Abstract: A series of co-polyimide (co-PI) resins with distorted noncoplanar structure were carefully designed and successfully fabricated by copolycondensation of 2,3,3′,4′-biphenyltetracarboxylic dianhydri...
TL;DR: In this paper, the authors reported the preparation of thermosetting polyimides (PIs) based on carborane-containing tetramine and their characterizations, and the novel tetramerine 1,2-bis(4-(3,5)-diaminobenzoic aci...
Abstract: In this study, we report the preparation of thermosetting polyimides (PIs) based on carborane-containing tetramine and their characterizations. The novel tetramine 1,2-bis(4-(3,5-diaminobenzoic aci...
TL;DR: Using 4,4-diaminodiphenyl methane as a curing agent, three kinds of monomers, 4, 4′-dihydroxybenzophenone, diphenyl chlorophosphite and 1, 4-phenylene diisocyanate (NCO), were introduced into a therm...
Abstract: Using 4,4-diaminodiphenyl methane as a curing agent, three kinds of monomers, 4,4′-dihydroxybenzophenone, diphenyl chlorophosphite and 1,4-phenylene diisocyanate (NCO), were introduced into a therm...
TL;DR: In this paper, the bending properties and fracture behavior of unidirectional continuous glass fiber-reinforced poly(ether ether ketone) composites based on the wrappe...
Abstract: The purpose of this study was to investigate bending properties and fracture behavior of the unidirectional continuous glass fiber-reinforced poly(ether ether ketone) composites based on the wrappe...
TL;DR: In this article, Furfuryl glycidyl ether (FGE) was used to give the automotive coating a self-healing ability to make its performance even better.
Abstract: Over time, automotive coating is bound to be damaged; therefore, it is necessary to give the coating a self-healing ability to make its performance even better. First, furfuryl glycidyl ether (FGE)...
TL;DR: In this article, active groups were introduced to the surface of aramid fiber by building a Cu2+ bridge between the ArAMid fiber and polyethyleneimine (PEI) to improve adhesion in composites.
Abstract: In this article, active groups were introduced to the surface of aramid fiber by building a Cu2+ bridge between the aramid fiber and polyethyleneimine (PEI) to improve adhesion in composites betwee...