Composite terminator emulsion for vinyl chloride polymerization and preparation method thereof

A technology of vinyl chloride polymerization and terminator, which is applied in the field of compound terminator emulsion and preparation for vinyl chloride polymerization, can solve problems such as easily affecting the color of PVC products, and achieves good vinyl chloride polymerization termination effect, excellent mechanical stirring stability, Simple preparation method

Active Publication Date: 2022-04-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polymerization inhibitor 4-oxygen-2,2,6,6-tetramethylpiperidine-1-oxyl free radical used in this invention is orange-red, which easily affects the chroma of PVC products

Method used

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  • Composite terminator emulsion for vinyl chloride polymerization and preparation method thereof
  • Composite terminator emulsion for vinyl chloride polymerization and preparation method thereof
  • Composite terminator emulsion for vinyl chloride polymerization and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-10

[0021] The composite terminator emulsion for vinyl chloride polymerization of the present invention includes an emulsifier and a composite terminator, and the emulsifier is compounded from polyoxyethylene sorbitan monolaurate and sorbitan monooleate , the compound terminator is compounded by pentaerythritol dodecylthiopropyl ester, triethylene glycol ether-bis(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate and N-isopropyl hydroxylamine With composition.

[0022] The formulation of the composite terminator emulsion for vinyl chloride polymerization described in Examples 1-10 is shown in Table 1.

[0023] The preparation method of the compound terminator emulsion for vinyl chloride polymerization of the present invention is specifically to combine pentaerythritol dodecylthiopropyl ester, triethylene glycol ether-di(3-tert-butyl-4-hydroxyl-5-methyl Base phenyl) propionate and N-isopropyl hydroxylamine are added to deionized water according to the mass fraction, then add sorbi...

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Abstract

The invention belongs to the technical field of resin synthesis, and in particular relates to a composite terminator emulsion for vinyl chloride polymerization and a preparation method thereof. Including emulsifier and complex terminator, the emulsifier is composed of polyoxyethylene sorbitan monolaurate and sorbitan monooleate, the complex terminator is composed of pentaerythritol dodecylthiopropyl ester, Triethylene glycol ether-bis(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate and N-isopropyl hydroxylamine compound composition. The composite terminator emulsion for vinyl chloride polymerization of the present invention can not only have a good vinyl chloride polymerization termination effect, improve the thermal stability of the resin, but also have excellent mechanical stirring stability, so that it can be used in polymerization with high stirring intensity. It can be used under certain conditions, and the preparation method is simple and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of resin synthesis, and in particular relates to a composite terminator emulsion for vinyl chloride polymerization and a preparation method thereof. Background technique [0002] The terminator stops or significantly reduces the reaction rate by combining with the residual initiator active free radicals and the residual initiator to form an inactive compound. It can effectively protect the polymer from being heated in the process after stripping. Oxygen aging damage. The terminator is added when the polymerization reaction reaches the set end point, commonly used terminators include bisphenol A, acetone thiosemicarbazone, BHT and the like. A single terminator is often unable to meet the requirements of efficiently terminating the polymerization reaction and improving the thermal stability of the resin at the same time. The terminator is developing towards the functional composite direction of both chain ter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F14/06C08F2/42
CPCC08F14/06C08F2/42
Inventor 刘浩王晶张新华蔡振华李兆华张磊刘容德王晓敏梁斌高磊孙丽朋
Owner CHINA PETROLEUM & CHEM CORP
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