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Ethylene-vinyl acetate copolymerized emulsion surface modified polyvinyl chloride resin and surface modification method thereof

A technology of vinyl acetate copolymerization and polyvinyl chloride resin, applied in the direction of coating, etc., can solve the problems of complex coupling agent treatment process, little effect on performance improvement, and difficult dispersion of materials evenly, so as to improve interfacial compatibility and effect The effect of enhancing and improving the plasticizing performance

Active Publication Date: 2017-09-29
YUNNAN ZHENGBANG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The viscosity of the coupling agent is high, the material is not easy to disperse evenly, and has little effect on performance improvement;
[0006] (2) The consumption of coupling agent is large and the cost is high;
[0007] (3) The coupling agent treatment process is complicated

Method used

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  • Ethylene-vinyl acetate copolymerized emulsion surface modified polyvinyl chloride resin and surface modification method thereof
  • Ethylene-vinyl acetate copolymerized emulsion surface modified polyvinyl chloride resin and surface modification method thereof
  • Ethylene-vinyl acetate copolymerized emulsion surface modified polyvinyl chloride resin and surface modification method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of ethylene-vinyl acetate copolymer latex surface modified polyvinyl chloride resin, its surface modification method comprises:

[0027] 1) In the polyvinyl chloride resin polymerization process, after the material enters the slurry tank, add 1% ethylene-vinyl acetate copolymer emulsion (40% vinyl acetate content) and mix evenly. The mixing time is: 10min;

[0028] 2) Then filter out excess water, transfer the material to a cyclone drying bed and dry at 40°C to obtain a polyvinyl chloride resin modified by ethylene-vinyl acetate copolymer emulsion.

Embodiment 2

[0030] A polyvinyl chloride resin surface-modified by an ethylene-vinyl acetate copolymer emulsion. The surface modification method is the same as in Example 1, except that the amount of ethylene-vinyl acetate copolymer emulsion used is changed to 20%.

Embodiment 3

[0032] A polyvinyl chloride resin surface-modified by an ethylene-vinyl acetate copolymer emulsion, the surface modification method of which is the same as in Example 1, except that the amount of ethylene-vinyl acetate copolymer emulsion used is changed to 40%.

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Abstract

The invention discloses and provides ethylene-vinyl acetate copolymerized emulsion surface modified polyvinyl chloride resin and a surface modification method thereof. The surface modification method comprises the following steps: uniformly coating ethylene-vinyl acetate copolymerized emulsion on the surface of polyvinyl chloride resin; then drying under the condition that the polyvinyl chloride resin is in contact with air to obtain the ethylene-vinyl acetate copolymerized emulsion surface modified polyvinyl chloride resin. When the polyvinyl chloride resin prepared by the surface modification method provided by the invention is used for producing a composite material, mechanical properties of the composite material can be improved; the filling amount of composite material filler and machining properties of the composite material are improved; the production operation is simple, easy and safe.

Description

technical field [0001] The invention belongs to the technical field of polyvinyl chloride, and in particular relates to a surface-modified polyvinyl chloride resin of ethylene-vinyl acetate copolymer emulsion and a surface modification method thereof. Background technique [0002] Polyvinyl chloride (PVC) is a general-purpose thermoplastic resin that is widely used. It has good flame retardancy, chemical corrosion resistance, wear resistance and other properties, and is low in price. It is widely used in construction, industry, agriculture and Packaging and other fields. However, conventional rigid polyvinyl chloride has the obvious disadvantage of high brittleness. At the same time, due to the incompatibility of the interface between polyvinyl chloride resin and hydrophilic fillers, it greatly limits its use as a high-performance structural material, and also greatly It limits its use in highly filled biomass materials. Therefore, the toughening modification of polyvinyl ...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08J7/00C08J3/00C08J3/20C08L27/06C08L23/08C08L97/02C08K13/02
CPCC08J3/005C08J3/20C08J7/00C08J7/0427C08J2327/06C08J2423/08C08L27/06C08L97/02C08L2205/035C08L2205/08C08L23/0853C08K13/02
Inventor 王寿元熊磊
Owner YUNNAN ZHENGBANG SCI & TECH
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