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Epoxidized hydroxyl-terminated polybutadiene liquid rubber and preparation method thereof

A technology for epoxidizing hydroxyl-terminated polybutadiene and hydroxyl-terminated polybutadiene is applied in the field of hydroxyl-terminated polybutadiene liquid rubber and preparation thereof, and the field of epoxidation of hydroxyl-terminated polybutadiene liquid rubber and preparation thereof , which can solve the problems of high epoxidation value and low epoxidation value

Inactive Publication Date: 2017-05-31
高成龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem of low epoxidation value of epoxidized hydroxyl-terminated polybutadiene liquid rubber in the prior art, and provides a kind of epoxidized hydroxyl-terminated polybutadiene liquid rubber. Butadiene liquid rubber has a higher epoxy value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An epoxidized hydroxyl-terminated polybutadiene liquid rubber, comprising the following raw materials in parts by weight:

[0023] 50 parts of hydroxyl-terminated polybutadiene

[0024] h 2 0 2 60 copies

[0025] 20 parts of formic acid

[0026] 120 parts of toluene

[0027] Acetone 80 parts

[0028] 3 parts of hydrochloric acid.

Embodiment 2

[0030] An epoxidized hydroxyl-terminated polybutadiene liquid rubber, comprising the following raw materials in parts by weight:

[0031] 60 parts of hydroxyl-terminated polybutadiene

[0032] h 2 0 2 70 copies

[0033] 25 parts of formic acid

[0034] 150 parts of toluene

[0035] Acetone 100 parts

[0036] 5 parts of hydrochloric acid.

Embodiment 3

[0038] An epoxidized hydroxyl-terminated polybutadiene liquid rubber, comprising the following raw materials in parts by weight:

[0039] 55 parts of hydroxyl-terminated polybutadiene

[0040] h 2 0 2 65 copies

[0041] 22 parts of formic acid

[0042] 130 parts of toluene

[0043] Acetone 90 parts

[0044] 4 parts of hydrochloric acid.

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PUM

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Abstract

The invention relates to epoxidized hydroxyl-terminated polybutadiene liquid rubber and a preparation method thereof, and belongs to the technical field of hydroxyl-terminated polybutadiene liquid rubber. The liquid rubber is prepared from the following raw materials in parts by weight: 50-60 parts of hydroxyl-terminated polybutadiene, 60-70 parts of H2O2, 20-25 parts of formic acid, 120-150 parts of methylbenzene, 80-100 parts of acetone and 3-5 parts of hydrochloric acid. By adopting a formic acid oxidation technology, the epoxidized hydroxyl-terminated polybutadiene liquid rubber with a relatively high epoxide number is prepared. The epoxide number of the prepared epoxidized hydroxyl-terminated polybutadiene liquid rubber can reach 0.45-0.5.

Description

technical field [0001] The invention relates to a hydroxyl-terminated polybutadiene liquid rubber and a preparation method thereof, more specifically, the present invention relates to an epoxidized hydroxyl-terminated polybutadiene liquid rubber and a preparation method thereof, belonging to the hydroxyl-terminated polybutadiene rubber Olefin liquid rubber technical field. Background technique [0002] Hydroxyl-terminated polybutadiene liquid rubber (abbreviated as hydroxybutadiene, abbreviated as HTPB) is a liquid telechelic polymer. HTPB is an important variety in liquid rubber. At present, there are three main ways to modify hydroxyl-terminated polybutadiene: one is the modification of terminal functional groups, such as introducing epoxy groups into terminal groups or reacting with polyisocyanate to produce damping parts after maleic anhydride; the other The second is the modification of double bonds in the molecular structure, such as epoxidation for semiconductor com...

Claims

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Application Information

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IPC IPC(8): C08C19/06
CPCC08C19/06
Inventor 高成龙
Owner 高成龙
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