CPVC (Chlorinated Polyvinyl Chloride) composition with good heat stability and preparation method thereof

A CPVC resin and thermal stability technology, which is applied in the field of CPVC composition with good thermal stability and its preparation, can solve problems such as CPVC processing difficulties, achieve long dynamic thermal stability time, solve processing difficulties, and meet production needs.

Active Publication Date: 2014-01-22
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a CPVC composition with excellent thermal stability and its preparation method, the CPVC composition Excellent thermal stability during material processing, thus solving the problem of difficult processing of CPVC

Method used

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  • CPVC (Chlorinated Polyvinyl Chloride) composition with good heat stability and preparation method thereof
  • CPVC (Chlorinated Polyvinyl Chloride) composition with good heat stability and preparation method thereof
  • CPVC (Chlorinated Polyvinyl Chloride) composition with good heat stability and preparation method thereof

Examples

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Effect test

Embodiment 1～12

[0019] Examples 1-12 are specific examples of the CPVC composition with good thermal stability of the present invention. Wherein embodiment 8 is the best implementation mode. In Examples 1 to 12, the composition ratio of the compound is shown in Table 1:

[0020] The mass ratio of each component in the compound of table 1

[0021]

[0022] In embodiment 1~12, the preparation method of composite stabilizer is as follows:

[0023] 1) Preparation of the compound: according to the mass ratio shown in Table 1, put the hydrotalcite stabilizer into the high-speed mixer, mix and heat up to 80-110°C, then gradually add epoxy soybean oil dropwise in proportion (among them, compound After compound 1 is heated to 110°C, compound 2 is heated to 80°C, compound 3 is heated to 100°C, and compound 4 is heated to 90°C, epoxy soybean oil is added dropwise); After the soybean oil is uniformly absorbed by the hydrotalcite stabilizer, the phosphite stabilizer is gradually added dropwise in pr...

Embodiment 1

[0026] 100 parts of CPVC resin, wherein the degree of polymerization of PVC is 700, and the chlorine content is 64%;

[0027] Composite stabilizer 3 parts, choose compound 1 and tin methyl mercaptide to mix according to the mass ratio of 1:1;

[0028] 8 parts of impact modifier CPE135A are selected;

[0029] The internal lubricant fatty acid lower alcohol ester G-16 is selected from 0.5 parts;

[0030] The external lubricant oxidized polyethylene wax AC-316A is selected as 0.8 parts;

[0031] 3 parts of titanium dioxide.

Embodiment 2

[0033] 100 parts of CPVC resin, wherein the degree of polymerization of PVC is 700, and the chlorine content is 64%;

[0034] Composite stabilizer 3 parts, choose compound 1 and tin methyl mercaptide to mix according to the mass ratio of 1:1;

[0035] 8 parts of impact modifier CPE135A are selected;

[0036] The internal lubricant fatty acid lower alcohol ester G-16 is selected from 0.5 parts;

[0037] The external lubricant oxidized polyethylene wax AC-316A is selected as 0.8 parts;

[0038] Calcium carbonate 4 parts.

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Abstract

The invention relates to a CPVC (Chlorinated Polyvinyl Chloride) composition with good heat stability and a preparation method thereof, belongs to the field of high-molecular processing materials, and mainly relates to the CPVC composition with good heat stability and the preparation method thereof. The CPVC composition is prepared from the following components in parts by weight: 100 parts of CPVC resin, 3-6 parts of composite stabilizer, 0.5-1.5 parts of internal lubricating agent, 0.5-1.5 parts of external lubricating agent, 6-12 parts of impact modifier and 3-20 parts of filling agent. The CPVC composition with good heat stability, which is disclosed by the invention, can enhance the heat stability of the CPVC composition in a processing process, thereby solving the problem of difficult processing of the CPVC composition.

Description

technical field [0001] A CPVC composition with good thermal stability and a preparation method thereof belong to the field of polymer processing materials, and mainly relate to a CPVC composition with good thermal stability and a preparation method thereof. Background technique [0002] Chlorinated polyvinyl chloride resin (CPVC) is obtained by chlorination and modification of polyvinyl chloride resin (PVC), and its chlorine content is generally 61%-73%. Therefore, in terms of physical and mechanical properties, heat resistance, weather resistance, corrosion resistance, flame retardant and self-extinguishing properties, it has been greatly improved compared with PVC, and it is a material with excellent performance. It is widely used in the manufacture of various pipes, plates, profiles, sheets, injection molded parts, foam materials, anti-corrosion coatings, etc., and has a large market prospect. However, due to the increase in the defect structure of CPVC resin after PVC r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/24C08K13/02C08K3/26C08K5/1515C08K5/524C08K5/58C08K3/22C08K3/34
Inventor 张学明王晶张新华李长春王海波张强苏建华孙丽朋
Owner CHINA PETROLEUM & CHEM CORP
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