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Preparation method of vinyl chloride-ethylene copolymer with network toughening structure

A technology of ethylene copolymer and vinyl chloride, applied in the field of functional polymers, can solve the problems of strong corrosion, environmental pollution, and many processes.

Active Publication Date: 2021-05-18
浙江华慧塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of high energy consumption, many processes, strong corrosion and serious pollution in the production process of CPE in my country, the present invention discloses a method of direct polymerization A method for obtaining a vinyl chloride-ethylene copolymer with a network toughening structure. On the one hand, the product obtained by the technology can maintain the excellent flexibility, oil resistance, chemical resistance and flame retardancy of CPE, and on the other hand, it has a good Solve the environmental pollution and unsustainable problems that traditional CPE cannot solve in the process of production and post-processing

Method used

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  • Preparation method of vinyl chloride-ethylene copolymer with network toughening structure
  • Preparation method of vinyl chloride-ethylene copolymer with network toughening structure
  • Preparation method of vinyl chloride-ethylene copolymer with network toughening structure

Examples

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Embodiment 1

[0042] Embodiment 1 provides a kind of preparation of the preparation method of vinyl chloride-ethylene copolymer with network toughening structure, and step comprises:

[0043] (1) ethylene is mixed with a crystallization rate regulator to obtain modified ethylene monomer;

[0044] Add 100 parts by mass of compressed liquefied ethylene, 0.01 part of fumed silica (Degussa AEROSIL300), 0.05 part of zinc dodecanoate and 0.1 part of polyoxyethylene ether into a high-pressure stirred tank, and Stir at 1000 rpm for 1 hour. Then, transfer it to the monomer storage tank for sealed storage to obtain a modified ethylene monomer mixture;

[0045] (2) Emulsion copolymerization of vinyl chloride and modified ethylene monomer;

[0046] 200 parts by mass of deionized water, 0.5 parts of peroxydicarbonate, 0.5 parts of sodium lauryl sulfate, 0.5 parts of dodecylphenol polyoxyethylene ether, 0.1 parts of Polyvinyl alcohol, 0.1 part of sodium bicarbonate and 0.01 part of thioglycolic acid w...

Embodiment 2

[0050] Embodiment 2 provides a kind of preparation of the preparation method of vinyl chloride-ethylene copolymer with network toughening structure, and step comprises:

[0051] (1) ethylene is mixed with a crystallization rate regulator to obtain modified ethylene monomer;

[0052] Put 100 parts by mass of compressed liquefied ethylene, 0.25 parts of 1,3;2,4-bis-o-(benzylidene) sorbitol, 0.25 parts of zinc oxide and 0.5 parts of lauric acid into the high-pressure stirring tank , stirred at 2000 rpm for 2 hours at room temperature. Then, transfer it to the monomer storage tank for sealed storage to obtain a modified ethylene monomer mixture;

[0053] (2) Emulsion copolymerization of vinyl chloride and modified ethylene monomer;

[0054] 250 parts by mass of deionized water, 1.5 parts of aluminum-titanium-based Ziegler-Natta catalyst, 1 part of sodium dodecylbenzenesulfonate, 1.5 parts of nonylphenol polyoxygen Vinyl ether, 0.5 part of hydroxypropyl cellulose, 0.5 part of po...

Embodiment 3

[0058] Embodiment 3 provides a kind of preparation of the preparation method of vinyl chloride-ethylene copolymer with network toughening structure, and step comprises:

[0059] (1) ethylene is mixed with a crystallization rate regulator to obtain modified ethylene monomer;

[0060] Add 100 parts by mass of compressed liquefied ethylene, 0.1 part of nano-calcium carbonate, 0.1 part of calcium stearate and 0.15 part of polyacrylamide into a high-pressure stirred tank, and stir at room temperature at 1000 rpm for 1 hour. Then, transfer it to the monomer storage tank for sealed storage to obtain a modified ethylene monomer mixture;

[0061] (2) Emulsion copolymerization of vinyl chloride and modified ethylene monomer;

[0062]200 parts by mass of deionized water, 1 part of zirconium-titanium-based metallocene catalyst, 0.5 part of sodium dodecyl sulfate, 1.5 parts of dodecylphenol polyoxyethylene ether, 0.15 parts of Part of sodium carboxycellulose, 0.25 part of ammonia water a...

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Abstract

The invention relates to the technical field of functional polymers, in particular to a preparation method of a vinyl chloride-ethylene copolymer with a network toughening structure. The preparation method of the vinyl chloride-ethylene copolymer with a network toughening structure comprises the following steps: in the presence of a crystallization rate regulator, mixing and stirring ethylene and a dispersant to obtain a modified ethylene monomer, and copolymerizing the modified ethylene monomer and a vinyl chloride emulsion, wherein the crystallization rate regulator comprises at least one selected from (a) amorphous silicic acid or silicate with the specific surface area of more than or equal to 100 m<2> / g, (b) inorganic metal compounds with the specific surface area of more than or equal to 100 m<2> / g and (c) organic acid salts or organic polyols with the particle size of 0.1-30 microns.

Description

technical field [0001] The invention relates to the technical field of functional polymers, in particular to a preparation method of a vinyl chloride-ethylene copolymer with a toughened network structure. Background technique [0002] Ethylene-vinyl acetate copolymer (referred to as EVA), binary or ternary ethylene-propylene copolymer (referred to as ethylene-propylene rubber) are the most common functional polymer materials, which have been widely used in the surface of polyolefin Interface modification, dispersion of pigments and additives, filling of inorganic particles and toughening modification of polyethylene, polypropylene and polyvinyl chloride. [0003] Vinyl chloride-vinyl acetate copolymer (vinyl chloride resin for short) is a kind of functional polymer with both flame retardancy and excellent adhesion. It can be widely used in automobiles, ships, machinery and other industries after being dissolved in solvents. Anti-corrosion and coating protection, can also be...

Claims

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Application Information

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IPC IPC(8): C08F214/06C08F210/02
CPCC08F214/06C08F210/02
Inventor 王继亮杨晓鹏杨积位
Owner 浙江华慧塑业有限公司
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