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Vinyl chloride polymerization terminator with good low-temperature fluidity, preparation method and application thereof

A vinyl chloride polymerization and low-temperature fluidity technology, which is applied in the field of vinyl chloride polymerization terminators with good low-temperature fluidity, can solve the problems of consuming polymerization initiators and reducing the polymerization reaction rate, etc., and achieves improved thermal stability and good low-temperature fluidity , High aging whiteness effect

Active Publication Date: 2021-10-22
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

2. In this patent, ethylene glycol diglycidyl ether is added at the beginning of polymerization. The ethylene glycol diglycidyl ether and diethylhydroxylamine in this patent are first compounded into a compound terminator. In this patent, ethylene glycol diglycidyl ether is added at the beginning of polymerization. Diol diglycidyl ether will consume the polymerization initiator and reduce the polymerization reaction rate

Method used

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  • Vinyl chloride polymerization terminator with good low-temperature fluidity, preparation method and application thereof
  • Vinyl chloride polymerization terminator with good low-temperature fluidity, preparation method and application thereof
  • Vinyl chloride polymerization terminator with good low-temperature fluidity, preparation method and application thereof

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Embodiment 1-5

[0024] A vinyl chloride polymerization terminator with good low-temperature fluidity, the components and contents of Examples 1-5 are shown in Table 1.

[0025] Each material component was weighed according to the proportioning in Table 1. Mix 20-30g diethylhydroxylamine, 30-40g ethylene glycol diglycidyl ether, 20-30g diphenyl-isodecyl phosphite, 40-50g deionized water, 0.5-2g polymerization degree 350, alcoholysis degree 55% polyvinyl alcohol aqueous solution with a concentration of 5% was put into a glass beaker and stirred for 10 minutes, then added to a high-speed shear emulsifier and emulsified at a speed of 2000r / min for 30 minutes to obtain a uniform and stable low-temperature flow of each component. Good vinyl chloride polymerization terminator.

[0026] Table 1

[0027]

[0028]

[0029] The vinyl chloride polymerization terminator with good low-temperature fluidity prepared in Examples 1-5 was used to terminate the vinyl chloride polymerization reaction.

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Abstract

The invention belongs to the field of resin synthesis, and in particular relates to a vinyl chloride polymerization terminator with good low-temperature fluidity, a preparation method and application thereof. The composition includes the following components in parts by weight: 20-30 parts of diethylhydroxylamine; 30-40 parts of ethylene glycol diglycidyl ether; 20-30 parts of diphenyl-isodecyl phosphite; 40-50 parts of deionized water And dispersant 0.5 ~ 2 parts. The dispersant is a polyvinyl alcohol aqueous solution with a polymerization degree of 300-400, an alcoholysis degree of 50%-60%, and a concentration of 5%. The terminator of the present invention has good fluidity at low temperature, and is suitable for use in areas or seasons with low temperature. The compound terminator can be kept uniform and stable without adding an emulsifier. The present invention also provides its preparation method and application, which can not only play a good role Excellent vinyl chloride polymerization termination effect, improved thermal stability of the resin, and excellent low-temperature fluidity, so that it can be used in cold regions or seasons.

Description

technical field [0001] The invention belongs to the field of resin synthesis, and in particular relates to a vinyl chloride polymerization terminator with good low-temperature fluidity, a preparation method and application 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. The commonly used terminators include bisphenol A, acetone thiosemicarbazone, BHT and so on. 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 o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F114/06C08F2/42
CPCC08F2/42C08F114/06
Inventor 刘浩张磊王晶张新华裴小静王秀丽刘容德王晓敏高磊
Owner CHINA PETROLEUM & CHEM CORP
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