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A kind of polyvinyl chloride free radical type water-based environment-friendly high-efficiency terminator and its application

A technology of polyvinyl chloride and free radicals, applied in the field of polyvinyl chloride free radical water-based environmentally friendly high-efficiency terminators and terminators, can solve the problems of insufficient whiteness and large amount of terminators, and achieve improved whiteness and resistance Aging performance, improved thermal stability, no irritating smell effect

Active Publication Date: 2020-06-02
道尔达(西安)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a polyvinyl chloride free radical type water-based environmentally friendly high-efficiency terminator and its application, so as to solve the problem that the whiteness of PVC products made of existing water-based terminators is not good enough and the termination The technical problem of adding a large amount of additives

Method used

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  • A kind of polyvinyl chloride free radical type water-based environment-friendly high-efficiency terminator and its application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a polyvinyl chloride free radical type water-based environmental protection high-efficiency terminator, which is composed of the following raw materials in parts by weight: 15 parts of free radical water-based polymerization inhibitor, 20 parts of water-soluble heat stabilizer, and the remaining The amount is solvent water, and the sum of parts by weight of raw materials is 100 parts;

[0029] The free radical water-based polymerization inhibitor is 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxyl radical;

[0030] The water-soluble heat stabilizer is zinc acetate.

[0031] The polyvinyl chloride radical type water-based environment-friendly high-efficiency terminator of this embodiment is obtained by mixing and stirring the above-mentioned raw materials in the formula amount.

[0032] The application of the polyvinyl chloride radical type water-based environmentally friendly high-efficiency terminator in this embodiment for the preparation of polyvi...

Embodiment 2

[0034] This embodiment provides a polyvinyl chloride free radical type water-based environmental protection high-efficiency terminator, which is composed of the following raw materials in parts by weight: 16 parts of free radical water-based polymerization inhibitor, 24 parts of water-soluble heat stabilizer, and 24 parts of water-soluble heat stabilizer. The amount is solvent water, and the sum of parts by weight of raw materials is 100 parts;

[0035] The free radical water-based polymerization inhibitor is 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxyl radical;

[0036] The water-soluble heat stabilizer is calcium acetate.

[0037] The polyvinyl chloride radical type water-based environment-friendly high-efficiency terminator of this embodiment is obtained by mixing and stirring the above-mentioned raw materials in the formula amount.

[0038] The application of the polyvinyl chloride radical type water-based environmentally friendly high-efficiency terminator in this embodime...

Embodiment 3

[0040] This embodiment provides a polyvinyl chloride free radical type water-based environmental protection high-efficiency terminator, which is composed of the following raw materials in parts by weight: 20 parts of free radical water-based polymerization inhibitor, 22 parts of water-soluble heat stabilizer, Surplus is solvent water, and the sum of the parts by weight of raw materials is 100 parts;

[0041] The free radical water-based polymerization inhibitor is 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxyl radical;

[0042] The water-soluble heat stabilizer is zinc propionate.

[0043] The polyvinyl chloride radical type water-based environment-friendly high-efficiency terminator of this embodiment is obtained by mixing and stirring the above-mentioned raw materials in the formula amount.

[0044] The application of the polyvinyl chloride radical type water-based environmentally friendly high-efficiency terminator in this embodiment for the preparation of polyvinyl chloride b...

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Abstract

The invention provides free radical-type water-based environment-friendly efficient terminator for polyvinyl chloride and application. The free radical-type water-based environment-friendly efficientterminator for polyvinyl chloride comprises, in parts by weight, 15-20 parts of a free radical-type water-based polymerization inhibitor, 20-24 parts of water-soluble thermal stabilizer and the balance a water solvent, wherein the total weight parts of the raw materials is 100 parts, 4-oxygen-2,2,6,6-tetramethylpiperidine-1-oxygen radicals are adopted as the free radical-type water-based polymerization inhibitor, and the water-soluble thermal stabilizer is acetate or propionate. Compared with the prior art, the terminator has a stronger ability to increase the thermal stability of resin and improve the whiteness and anti-aging performance of the resin, zinc or calcium fatty acid substances in the terminator can replace unstable allyl chloride, so that the problem of removal of HCl from polyvinyl chloride macromolecules is solved from the source, and the thermal stability of the resin is improved.

Description

technical field [0001] The invention belongs to the field of polyvinyl chloride and relates to a terminator, in particular to a polyvinyl chloride free radical type water-based environment-friendly high-efficiency terminator and its application. Background technique [0002] Polyvinyl chloride is the second largest general-purpose resin in the world (second only to polyethylene). In my country, 94% of polyvinyl chloride is produced by suspension polymerization, and the terminator is an indispensable and important auxiliary agent in the suspension polymerization process of polyvinyl chloride. agent. [0003] The polymerization of polyvinyl chloride belongs to the mechanism of free radical polymerization. The main function of the terminator is to terminate the reaction in time when the polymerization reaction reaches a certain conversion rate (generally about 85%), thereby reducing the proportion of unstable structures in the polyvinyl chloride molecule and improving the resin....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F14/06C08F2/42C08F2/18
CPCC08F14/06C08F2/42C08F2/18
Inventor 杜伟锋公会良马玉慧许春花徐媛高园园
Owner 道尔达(西安)新材料有限公司
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