The invention discloses a technology for processing an antibacterial insect-resistant shell fabric The technology comprises the following steps: (1) mixing the following components in parts by weight: 1-2 parts of polyoxyethylene glycol bisstearate, 12-15 parts of silver ion antibacterial agent and 8-9 parts of alpha-cypermethrin, controlling the temperature to be 45-50 DEG C, sequentially and slowly adding 15-17 weight parts of ethyltriethoxysilane, 20-25 weight parts of a silicone softener and 50-60 weight parts of deionized water, continuously mixing for 30-40 minutes, and finally regulating the PH value to be 5-55 by using triethanolamine to prepare an antibacterial insect-resistant finishing solution; (2) padding the shell fabric in the antibacterial insect-resistant finishing solution at the pressure of 15-25MPa and the liquid rate of 65-70 percent; (3) drying the shell fabric at the temperature of 85 DEG C; and (4) keeping the temperature of the shell fabric to be 135-140 DEG C for 1-2 hours The processed shell fabric has antibacterial insect-resistant effects and has high durability comprising washing resistance, resistance to dry cleaning and weather resistance

Technology for processing antibacterial insect-resistant shell fabric

Method for synthesizing quinazolino indazole derivatives

The invention relates to a preparation method for a water-based drilling fluid treating agent for a petroleum drilling well, especially to a preparation method for modified starch used for a water-based drilling fluid. The preparation method comprises the following steps: placing starch in the reaction vessel of a kneader; adding alkali, water and ethanol into the reaction vessel and carrying out an enclosed kneading reaction; adding alkali, chloroacetic acid and ethanol into the reaction vessel and carrying out an enclosed kneading reaction; cooling to a temperature of 0 to 25 DEG C, adding alkali into the reaction vessel and carrying out an enclosed kneading reaction; adding a hydrophobic reagent into the reaction vessel, heating to a temperature of 30 to 55 DEG C and carrying out an enclosed kneading reaction; and cooling to room temperature and carrying out blanking, drying and crushing. The hydrophobically modified carboxymethyl starch used for a drilling fluid in the invention has a carboxymethyl substitution degree of 0.31 to 0.63 and a hydrophobic group substitution degree of 0.12 to 0.225; when the addition amount of the hydrophobically modified carboxymethyl starch in soil-based slurry containing 5% of sodium is 1%, an oil-water pass ratio is no less than 0.9.

Preparation method for hydrophobically modified carboxymethyl starch used for drilling fluid

The invention discloses a renewable polyurea-urethane based on dynamic covalent crosslinking of stable borate bonds, and a preparation method and an application thereof. The preparation method comprises the following steps: dissolving an cyclic borate compound and an isocyanate compound which are coordinated in nitrogen and boron in an organic solvent according to a molar ratio of active hydrogento an isocyanate group: 1:(0.8-1.5), performing sufficient stirring to form a uniform solution, and completely reacting the uniform solution at a preset temperature to prepare a PUU resin gel, whereinthe isocyanate compound is one or a mixture of two or more of difunctional or/and trifunctional isocyanate compounds; the organic solvent is one or a mixture of two or more of strong polar solvents.The PUU of the present invention has the advantages of high strength, excellent mechanical properties, repairability and remoldability, and can be recycled many times.

Renewable polyurea-urethane based on dynamic covalent crosslinking of stable borate bonds, and preparation method and application thereof

The invention relates to compound insecticide containing d-trans-prallethrin chloride, which comprises, in weight percentage, 1-10% of lethal pyrethroid compound shown in a formula (A), 0.1-2% of d-trans-prallethrin chloride, 3-20% of emulsifier, 5-25% of cosolvent, 1-10% of antifreezing agent, 0.1-0.5% of defoaming agent, and the balance of water. The compound insecticidal preparation is simple in production process and safe in use, consumption of organic solvent is reduced, environmental pollution is reduced, the rate of downing sanitary insect pests such as mosquitoes, flies, cockroaches and the like can be increased, and fine lethality rate is achieved. In addition, the compound insecticide has evident synergetic effect on controlling the sanitary insect pests, application amount of insecticides can be reduced, cost can be reduced, and occurrence of drug resistance of the sanitary insect pests can be delayed.

Compound insecticidal preparation containing d-trans-prallethrin chloride and application thereof

The invention relates to a palladium-catalyzed synthesis method of a diketone compound, which comprises the following step: reacting a dinitrile compound and aryl trifluoroborate in solvent in the presence of a palladium catalyst, a nitrogen-containing ligand and trifluoroacetic acid to prepare the diketone compound through one step The synthesis method has the advantages of mild reaction conditions, high product yield, simple operation and the like, provides a new chemical reaction route for synthesis of the diketone compound, and has favorable implementation values and industrial application prospects

Preparation method of aromatic diketone compound

Method for preparing nanometer lamellar sodium carboxymethyl starch

The invention discloses a method for synthesizing a 3-aryl sulfydryl indole compound which is shown as a formula (I). According to the method for synthesizing the 3-aryl sulfydryl indole compound, an indole compound which is shown as a formula (II) and diaryl disulfides which are shown as a formula (III) are taken as raw materials, and the 3-aryl sulfydryl indole compound is obtained by fully reacting the indole compound and the diaryl disulfides in an organic solvent at the temperature of between -30 and 40 DEG C in the presence of N-halogenate succinimide; and the N-halogenate succinimide is one of N-chlorobutanimide, N-bromosuccinimide, and N-Iodosuccinimide. According to the method, a nonmetal low-toxicity reaction system is used, and cost is low; reaction selectivity and yield are high; a process route is advanced and reasonable, and reaction conditions are mild; and the method has great implementation value and social and economic benefit.

Method for synthesizing 3-aryl sulfydryl indole compound

Cypermethrin emulsion in water and preparation method thereof

The invention relates to a synthesis method of an o-amino diaryl ketone compound The method comprises one step of reacting an o-amino aromatic nitrile with aryl trifluoborate in a solvent in the presence of a palladium catalyst, a nitrogen-containing ligand and trifluoroacetic acid The synthesis method has the advantages of mild reaction condition, high product yield, high purity and the like, provides a new chemical reaction path for synthesis of the o-amino diaryl ketone compound, and has good implementation value and an industrial application prospect

Wu Huayue

Papers

Preparation method of aromatic diketone compound

Method for preparing nanometer lamellar sodium carboxymethyl starch

Method for synthesizing 3-aryl sulfydryl indole compound

Cypermethrin emulsion in water and preparation method thereof

Preparation method of o-amino diaryl ketone compound