Thermally stable vinyl chloride polymerization terminator, its preparation method and application

A technology of vinyl chloride polymerization and terminator, applied in the field of resin synthesis, can solve the problem of toxicity of phenolic antioxidants, and achieve the effects of improving thermal stability, good vinyl chloride polymerization termination effect, and large specific surface area

Active Publication Date: 2021-08-10
CHINA PETROLEUM & CHEM CORP
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The additives used in this patent are different from those in the patent of the present invention. The phenolic antioxidant used in this invention is poisonous

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermally stable vinyl chloride polymerization terminator, its preparation method and application
  • Thermally stable vinyl chloride polymerization terminator, its preparation method and application
  • Thermally stable vinyl chloride polymerization terminator, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0023] A thermally stable vinyl chloride polymerization terminator, the components and contents of Examples 1-5 are shown in Table 1.

[0024] Each material component was weighed according to the proportioning in Table 1. Put 30-40g hydrotalcite, 20-30g bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite, 0.1-0.5g polyoxyethylene polyol alkyl ester, 60-70g deionized water into Stir in the glass beaker for 10 minutes, then add 1~3g hydroxypropyl methylcellulose, 20~30g N-isopropylhydroxylamine, stir well, pour it into a high-speed shear emulsifier and emulsify at 4000r / min for 50min A heat-stable vinyl chloride composite terminator in which each component exists uniformly and stably in the emulsion is obtained.

[0025] Table 1

[0026]

[0027] Note: the MgO / Al of the hydrotalcite used in the embodiment 2 o 3 =3.5, the average particle size is about 20nm, and the specific surface area is 16m 2 / g.

[0028] The heat-stable vinyl chloride polymerization terminator ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the field of resin synthesis, and in particular relates to a heat-stable vinyl chloride polymerization terminator, its preparation method and application. Including the following raw materials: N-isopropyl hydroxylamine, hydrotalcite, bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite, deionized water, dispersant and emulsifier; wherein: hydrotalcite is: MgO / Al 2 o 3 =3.0~4.0, the average particle size is 10~20nm, and the specific surface area is 15~20m 2 / g. The terminator of the present invention has good vinyl chloride polymerization termination effect, effectively reduces the damage of residual initiator to the thermal stability of PVC resin, can improve the thermal stability of PVC resin, prolong the thermal stability time of resin, and does not affect the transparency of PVC products properties, the present invention also provides its preparation method and application.

Description

technical field [0001] The invention belongs to the field of resin synthesis, and in particular relates to a heat-stable vinyl chloride polymerization terminator, 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. 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 of both chain termination and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C08F114/06C08F2/38C08L27/06C08K3/26C08K5/526
CPCC08F2/38C08F114/06C08K3/26C08K5/526C08L2201/08C08L27/06
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap