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Preparation method of flame-retardant, impact-resistant and high-fluidity chloroethylene-based special resin

A high-fluidity, vinyl chloride technology, applied in the preparation of flame-retardant, high-fluidity vinyl chloride-based special resins, and in the field of impact resistance, it can solve the problems of high water absorption, achieve high gloss, simple process, and excellent fluidity Effect

Active Publication Date: 2013-12-25
SUZHOU HONGDING WATER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ABS has a high water absorption rate and needs to be dried before thermal processing.

Method used

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  • Preparation method of flame-retardant, impact-resistant and high-fluidity chloroethylene-based special resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 100 g deionized water, 1 g potassium persulfate, 4 g alkylphenol polyoxyethylene ether emulsifier CO, 2 g sodium lauryl sulfate, 2 g tert-butyl alcohol, 0.1 g polyvinyl alcohol, 100 g rubber seed oil and 3 g divinylbenzene. Stir at 30°C for 15 minutes to obtain a latex rubber emulsion; then, raise the temperature of the reaction system to 60°C, heat the reaction for 2 hours, then cool to room temperature to obtain a soft monomer core emulsion.

[0032] Add 100 g of vinyl chloride (351.1), 50 g of styrene, 100 g of the above-mentioned soft monomer emulsion, 1 g of peroxydicarbonate, 100 g of deionized water, and 0.1 g carboxycellulose. After stirring evenly, gradually increase the temperature of the system to 50°C, heat-preserve and pressure-hold the reaction until the pressure of the system drops significantly, continue the heat-retaining reaction for 1 hour, and cool the system to room temperature to obtain a flame-retardant, impact-resistant, high-flow performanc...

Embodiment 2

[0034] Add 1000 g deionized water, 10 g ammonium persulfate, 12 g alkylphenol polyoxyethylene ether emulsifier OP, 9 g sodium dodecylbenzenesulfonate, 5 g lauryl alcohol, 1 g gelatin, 0.5 polyvinyl alcohol, 1000 g isooctyl acrylate and 25 g ethylene glycol diacrylate (diene acrylate). Stir at 30° C. for 10 minutes to obtain an isooctyl acrylate emulsion; then, raise the temperature of the reaction system to 70° C., keep it warm for 2 hours, then cool to room temperature to obtain a soft monomer core emulsion.

[0035]Add 500 g of vinyl chloride, 50 g of vinylidene chloride, 800 g of styrene, 1000 g of the above soft monomer emulsion, 5 g of dicumyl peroxide, 5 g of g peroxydicarbonate, 1000 g deionized water and 1 g carboxylated cellulose. After stirring evenly, gradually increase the temperature of the system to 60°C, heat-preserve and press-hold the reaction until the pressure of the system drops significantly, continue the heat-retaining reaction for 1 hour, and cool the s...

Embodiment 3

[0037] Add 1000 g deionized water, 10 g ammonium persulfate, 10 g alkylphenol polyoxyethylene ether emulsifier NP, 10 g sodium lauryl sulfate, 0.5 g Sodium alginate, 0.5 polyvinyl alcohol, 800 g butyl acrylate and 20 g ethylene glycol diacrylate (diene acrylate). Stir at 30°C for 30 minutes to obtain a butyl acrylate emulsion; then, raise the temperature of the reaction system to 90°C, keep the temperature for 2 hours, then cool to room temperature to obtain a soft monomer core emulsion.

[0038] Add 500 g vinyl chloride, 50 g vinylidene chloride, 800 g styrene, 1000 g of the above soft monomer emulsion, 5 g peroxydicarbonate, 5 g Dicumyl peroxide, 0.5 g mercaptoethanol, 1000 g deionized water and 1 g carboxylated cellulose. After stirring evenly, gradually raise the temperature of the system to 40°C, heat-preserve and pressure-hold the reaction until the pressure of the system drops significantly, continue the heat-retaining reaction for 1 hour, and cool the system to room t...

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Abstract

The invention relates to a preparation method of flame-retardant, impact-resistant and high-fluidity chloroethylene-based special resin, and belongs to the field of modification of functional polymer materials. The preparation method comprises the following process steps of (1) adding deionized water, an initiator A, an emulsifier, a co-emulsifier, a dispersing agent, a soft monomer and a crosslinking agent into a reaction kettle at 30 DEG C while stirring, pre-emulsifying the resulting solution to obtain a pre-emulsified solution; (2) increasing the temperature of the pre-emulsified solution to be not greater than 90 DEG C, and carrying out reaction while keeping the temperature to obtain a soft monomer kernel emulsion; and (3) adding a chloroethylene-based monomer, styrene, the soft monomer kernel emulsion, an initiator B, the deionized water, and the dispersing agent into the reaction kettle and carrying out reaction while keeping the temperature at 30-70 DEG C to obtain the special resin. Compared with acrylonitrile-butadiene-styrene copolymer (ABS), the chloroethylene-based special resin has the advantages of low price, self flame retardance, high toughness and the like, and can be used for completely replacing ABS and the flame-retardant ABS to be widely applied to the fields of airplanes, cars, ships, household appliances, building materials and the like.

Description

technical field [0001] The invention relates to a method for preparing a flame-retardant, impact-resistant and high-fluidity vinyl chloride-based special resin, which belongs to the field of preparation and modification of functional polymer materials. Background technique [0002] ABS is one of the five major synthetic plastics. Its Chinese name is acrylonitrile-butadiene-styrene copolymer. It was first discovered and commercialized during World War II. It has good impact resistance and heat resistance. Low temperature resistance, chemical resistance and electrical properties are excellent, and it also has the characteristics of easy processing, stable product size and good surface gloss. It is widely used in industrial fields such as machinery, automobiles, electronic appliances, instrumentation, textiles and construction. A versatile engineering thermoplastic. [0003] According to different physical properties, ABS can be divided into fireproof grade, flame retardant gr...

Claims

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Application Information

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IPC IPC(8): C08F265/04C08F214/06C08F212/08C08F214/08C08F279/02C08F2/24
Inventor 王继亮蔡辉王建林
Owner SUZHOU HONGDING WATER
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