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A technology for epoxidizing hydroxyl-terminated polybutadiene and hydroxyl-terminated polybutadiene is applied in the rubber field, which can solve the problems of poor mechanical properties of liquid rubber and achieve the effect of excellent mechanical properties
Inactive Publication Date: 2018-06-01
CHENGDU JINHUI TECH
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Problems solved by technology
[0006] The present invention aims to solve the problem of poor mechanical properties of liquid rubber in the prior art, and provides an epoxidized hydroxyl-terminated polybutadiene liquid rubber, which has excellent mechanical properties
Method used
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Embodiment 1
[0035] An epoxidized hydroxyl-terminated polybutadiene liquid rubber, comprising the following raw materials in parts by weight:
[0036] 50 parts of hydroxyl-terminated polybutadiene
[0037] 150 parts hydrogen peroxide
[0038] 30 parts of formic acid
[0039] 50 parts of methyl ethyl ketone
[0040] Sodium sulfamate 3 parts
[0041] 800 parts of deionized water.
Embodiment 2
[0043] An epoxidized hydroxyl-terminated polybutadiene liquid rubber, comprising the following raw materials in parts by weight:
[0044] 60 parts of hydroxyl-terminated polybutadiene
[0045] 200 parts hydrogen peroxide
[0046] 50 parts of formic acid
[0047] 60 parts of methyl ethyl ketone
[0048] Sodium sulfamate 5 parts
[0049] 1000 parts of deionized water.
Embodiment 3
[0051] An epoxidized hydroxyl-terminated polybutadiene liquid rubber, comprising the following raw materials in parts by weight:
[0052] 55 parts of hydroxyl-terminated polybutadiene
[0053] 175 parts hydrogen peroxide
[0054] 40 parts of formic acid
[0055] 55 parts of methyl ethyl ketone
[0056] Sodium sulfamate 4 parts
[0057] 900 parts of deionized water.
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Abstract
The invention relates to epoxidized hydroxyl-terminated polybutadiene liquid rubber and belongs to the technical field of rubber. The epoxidized hydroxyl-terminated polybutadiene liquid rubber is prepared from the following raw materials in parts by weight: 50-60 parts of hydroxyl-terminated polybutadiene, 150-200 parts of hydrogen peroxide, 30-50 parts of formic acid, 50-60 parts of methyl ethylketone, 3-5 parts of sodium sulfamate and 800-1000 parts of deionized water. The epoxidized hydroxyl-terminated polybutadiene liquid rubber has the beneficial effects that epoxidizing modification canbe carried out on hydroxyl-terminated polybutadiene liquid rubber (HTPB) by adopting a peroxyformic acid in-situ method for all the raw materials so as to prepare the epoxidized hydroxyl-terminated polybutadiene liquid rubber with excellent mechanical property.
Description
technical field [0001] The invention relates to a liquid rubber, more specifically, the invention relates to an epoxidized hydroxyl-terminated polybutadiene liquid rubber, which belongs to the technical field of rubber. Background technique [0002] Hydroxyl-terminated polybutadiene (HTPB for short) is a liquid telechelic polymer. It reacts with chain extender and crosslinking agent to form a cured product with one-dimensional network structure, which has excellent mechanical properties and good hydrolysis resistance, acid and alkali resistance, wear resistance, low temperature resistance and electrical insulation properties. [0003] Epoxidized hydroxyl-terminated polybutadiene (EHTPB) is the product of introducing epoxy groups into the macromolecular chain of HTPB, which can not only effectively improve the polarity, but also introduce epoxy groups as reactive functional groups, which can be combined with polyurethane The amino active hydrogen produced during the cross-li...
Claims
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Application Information
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