Vinyl chloride polymerization terminator as well as preparation method and application thereof

A technology of vinyl chloride polymerization and terminator, which is applied in the field of vinyl chloride polymerization terminator and preparation, can solve the problems of decreased stabilization effect of terminator and hydrolysis of phosphite stabilizer, and achieves high termination efficiency, excellent transparency, high The effect of transmittance

Active Publication Date: 2021-02-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the aqueous emulsion type terminator of the invention contains a phosphite stabilizer, it is very easy to cause hydrolysis of the phosphite stabilizer, resulting in a decrease in the stabilizing effect of the terminator

Method used

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  • Vinyl chloride polymerization terminator as well as preparation method and application thereof
  • Vinyl chloride polymerization terminator as well as preparation method and application thereof
  • Vinyl chloride polymerization terminator as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Vinyl chloride polymerization terminator of the present invention, raw material is made of diethylhydroxylamine, zinc acetylacetonate, triethylene glycol ether-two (3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate , deionized water and emulsifier polyoxyethylene sorbitan trioleate composition; Raw material ratio as shown in table 1.

[0023] The preparation method of vinyl chloride polymerization terminator of the present invention, zinc acetylacetonate, triethylene glycol ether-bis(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate, deionized water Put it into a glass beaker, stir and heat to 80°C, then add the emulsifier polyoxyethylene sorbitan trioleate into the glass beaker, stir well, pour it into a high-speed shear emulsifier, and emulsify at 2000r / min for 30min , add diethylhydroxylamine, and continue to emulsify uniformly to obtain an environmentally friendly and highly efficient vinyl chloride polymerization terminator in which each component exists uniforml...

Embodiment 2

[0026] The vinyl chloride polymerization terminator of the present invention consists of diethylhydroxylamine, zinc acetylacetonate, triethylene glycol ether-bis(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate, Composition of deionized water and emulsifier polyoxyethylene sorbitan trioleate; raw material ratio as shown in Table 1.

[0027] The preparation method of vinyl chloride polymerization terminator of the present invention, zinc acetylacetonate, triethylene glycol ether-bis(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate, deionized water Put it into a glass beaker, stir and heat to 82°C, then add emulsifier polyoxyethylene sorbitan trioleate into the glass beaker, stir evenly, pour it into a high-speed shear emulsifier and emulsify at 2000r / min for 30min , add diethylhydroxylamine, and continue to emulsify uniformly to obtain an environmentally friendly and highly efficient vinyl chloride polymerization terminator in which each component exists uniformly and stabl...

Embodiment 3

[0030] The vinyl chloride polymerization terminator of the present invention consists of diethylhydroxylamine, zinc acetylacetonate, triethylene glycol ether-bis(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate, Composition of deionized water and emulsifier polyoxyethylene sorbitan trioleate; raw material ratio as shown in Table 1.

[0031]The preparation method of vinyl chloride polymerization terminator of the present invention, zinc acetylacetonate, triethylene glycol ether-bis(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate, deionized water Put it into a glass beaker, stir and heat to 85°C, then add the emulsifier polyoxyethylene sorbitan trioleate into the glass beaker, stir well, pour it into a high-speed shear emulsifier, and emulsify at 2000r / min for 30min , add diethylhydroxylamine, and continue to emulsify evenly to obtain an environmentally friendly and highly efficient vinyl chloride composite terminator in which each component exists uniformly and stably in t...

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PUM

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Abstract

The invention belongs to the technical field of resin synthesis, and particularly relates to a vinyl chloride polymerization terminator as well as a preparation method and an application thereof. Theraw materials are composed of diethyl hydroxylamine, zinc acetylacetonate, triethylene glycol ether-di(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate, deionized water and an emulsifier polyoxyethylene sorbitan trioleate. The vinyl chloride polymerization terminator disclosed by the invention has the advantages of high terminating efficiency and good thermal stability and transparency, and can endow a resin product with a relatively low yellow index, relatively high light transmittance and relatively low haze, so that a PVC product has excellent transparency; and the prepared vinyl chloride polymerization terminator is suitable for terminating polymerization of food and medical PVC resin.

Description

technical field [0001] The invention belongs to the technical field of resin synthesis, and in particular relates to a vinyl chloride polymerization terminator as well as its preparation method and application. 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 terminati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F114/06C08F2/38
CPCC08F114/06C08F2/38
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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