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Novel chlorinated polyethylene and preparation method thereof

A technology of chlorinated polyethylene and polyethylene, which is applied in the field of plastic products, can solve problems such as discoloration, physical and mechanical performance degradation, and poor stability, and achieve high production efficiency, improved anti-sticking performance, and loss control of fluidity

Inactive Publication Date: 2016-05-25
SHENZHEN AIYIRUI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing vinyl chloride polymers have poor stability to light and heat, and will decompose at temperatures above 100°C or exposed to sunlight for a long time to produce hydrogen chloride, which will further autocatalyze and decompose, causing discoloration and rapid decline in physical and mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of preparation method of novel chlorinated polyethylene of the present invention, carry out successively according to following steps:

[0042] Step 1: adding 30 parts by mass of polyethylene into a solution mixed with 10 parts by mass, 10 parts by mass, and 10 parts by water, hydrochloric acid and calcium chloride, and starting stirring;

[0043] Step 2: Add 10 parts, 1 part, 1 part and 1 part of dimethyl sulfoxide, titanium dioxide, antioxidant and ultraviolet absorber in sequence, and continue stirring;

[0044] Step 3: Passing in the chlorine gas of 20 parts by mass to carry out the chlorination reaction;

[0045] Step 4: After the reaction is completed, filter to obtain the product.

[0046] The antioxidant described in step 2 is bisphenol A and triphenyl phosphite; the ultraviolet absorber is triazine-5 and phthalocyanine blue.

Embodiment 2

[0048] Compared with Example 1, the mass fraction of polyethylene is 35 parts, the mass fraction of water is 13 parts, the mass fraction of hydrochloric acid is 13 parts, the mass fraction of calcium chloride is 13 parts, and the mass fraction of dimethyl methylene The mass parts of sulfone are 15 parts, the mass parts of titanium dioxide are 3 parts; the mass parts of antioxidant are 3 parts, the mass parts of ultraviolet absorber are 3 parts, and the mass parts of chlorine gas are 23 parts. Other process flow is identical with embodiment one.

Embodiment 3

[0050] Compared with Example 1, the mass fraction of polyethylene is 40 parts, the mass fraction of water is 15 parts, the mass fraction of hydrochloric acid is 15 parts, the mass fraction of calcium chloride is 15 parts, and the mass fraction of dimethyl methylene The mass parts of sulfone are 20 parts, the mass parts of titanium dioxide are 5 parts; the mass parts of antioxidant are 5 parts, the mass parts of ultraviolet absorber are 5 parts, and the mass parts of chlorine gas are 23 parts. Other process flow is identical with embodiment one.

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PUM

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Abstract

The invention relates to the technical field of plastic products, in particular to novel chlorinated polyethylene and a preparation method thereof. The novel chlorinated polyethylene comprises the following raw materials: polyethylene, dimethyl sulfoxide, water, titanium oxide, chlorine gas, hydrochloric acid, calcium chloride, an antioxidant and an ultraviolet absorbent. The anti-sticking performance of the chlorinated polyethylene can be improved through the titanium oxide; meanwhile, the aging resistance of the chlorinated polyethylene can be improved through bisphenol A, triphenyl phosphite, triazine-5 and phthalocyanine blue.

Description

technical field [0001] The invention relates to the technical field of plastic products, in particular to a novel chlorinated polyethylene and a preparation method thereof. Background technique [0002] With the vigorous development of the petroleum industry, the production and processing of polymer materials has also made great progress. In people's daily life, everything from a ballpoint pen to a refrigerator and washing machine is full of polymer materials. [0003] Chlorinated polyethylene is a kind of polymer material with excellent comprehensive properties, which is chlorinated from high-density polyethylene. The molecular formula is [CH 2 -CHCl-CH 2 -CH 2 ] n. White particles, soluble in aromatic hydrocarbons and halogenated hydrocarbons, insoluble in aliphatic hydrocarbons. Decomposes above 170°C, has excellent weather resistance, low temperature resistance and electrical properties; ozone resistance; chemical resistance, oil resistance; flame retardancy; also ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08K13/02C08K3/22C08K5/13C08K5/526C08K5/3492C08F10/02C08F8/22
CPCC08K13/02C08F8/22C08K3/22C08K5/13C08K5/3492C08K5/526C08K2003/2241C08L23/286C08F10/02
Inventor 何定
Owner SHENZHEN AIYIRUI TECH CO LTD