Preparation method of non-migratory rubber plasticizer based on ricinoleic acid homopolymerisation

A technology of ricinoleic acid and plasticizer, which is applied in the field of preparation of general-purpose rubber plasticizer ricinoleic acid homopolymer, can solve the problems of low molecular weight, low migration, poor plasticizing effect, etc., and achieves simple preparation method and low raw material Easy to get, cheap results

Active Publication Date: 2016-07-27
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used plasticizers for rubber mainly include: petroleum-based plasticizers, coal tar plasticizers, pine tar-based plasticizers, fatty oil-based plasticizers, and synthetic plasticizers. Plastics are still derived from petrofossil resources, which still cannot meet the purpose of environmental protection and energy saving
[0003] 2 Polyester plasticizer is a kind of synthetic plasticizer. As polyester plasticizer, its molecular weight is generally between 1000 and 8000. Polyester plasticizer has low volatility, low migration, and Heat, oil resistance, water resistance and many other advantages, the molecular weight is too low and easy to migrate, the molecular weight is too large and the plasticizing effect is poor

Method used

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  • Preparation method of non-migratory rubber plasticizer based on ricinoleic acid homopolymerisation
  • Preparation method of non-migratory rubber plasticizer based on ricinoleic acid homopolymerisation
  • Preparation method of non-migratory rubber plasticizer based on ricinoleic acid homopolymerisation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0028] The ingredients were weighed in parts by mass as follows: 100 parts of natural rubber, 50 parts of carbon black, 5 parts of zinc oxide, 2 parts of stearic acid, 2 parts of antioxidant 4010NA, 0.6 part of accelerator NS, and 2.5 parts of sulfur. Mixing process: In order to prevent the natural rubber from being over-mixed and thus affect the test results of each system, the entire rubber mixing time on the open mill is controlled within 15 minutes. The order of feeding: in order to shorten the mixing time, and to make small materials and carbon black To be able to disperse evenly, first add zinc oxide, stearic acid and anti-aging agent for mixing, then add carbon black, add sulfur when the carbon black is uniformly dispersed, and finally add accelerator, and then vulcanize after one day of mixing. The vulcanization temperature is selected at 145°C, and the vulcanization time is set at 25 minutes. After vulcanization, samples are cut to test performance.

Embodiment 3

[0030] Except for adding 3 parts of ricinoleic acid homopolymer together with carbon black during mixing, other conditions are the same as in Example 2, vulcanization is carried out one day after the mixing is completed, the vulcanization temperature is selected at 145°C, and the vulcanization time is set at 25min , After vulcanization, cut the sample and test the performance.

Embodiment 4

[0032] Except adding 6 parts of ricinoleic acid homopolymer together with carbon black during mixing, other conditions are the same as in Example 2, vulcanization is carried out one day after the mixing is completed, the vulcanization temperature is selected at 145°C, and the vulcanization time is set at 25min , After vulcanization, cut the sample and test the performance.

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Abstract

The invention discloses a preparation method of a non-migratory rubber plasticizer based on ricinoleic acid homopolymerisation and belongs to the technical field of preparation of bio-based materials. Synthesized bio-based polyester can be used for plasticization of common rubber. With the adoption of a ricinoleic acid homopolymerisation method, specific synthesis comprises two steps of pre-polymerization and condensation polymerization, wherein the pre-polymerization stage is completed at the temperature of 160-180 DEG C, the condensation polymerization is completed at the temperature of 200-220 DEG C, the preparation method is simple and convenient to operate, the plasticizer meets the characteristics of a bio-based environment-friendly plasticizer, the processing performance, the mechanical performance, the hardness, the abrasion performance and the like of the rubber can be effectively improved, and the preparation method has better popularization and application values while bio-based environment-friendly plasticizers are vigorously developed at present.

Description

technical field [0001] The invention relates to the preparation of a general-purpose rubber plasticizer ricinoleic acid homopolymer, and belongs to the technical field of rubber auxiliary preparation. Background technique [0002] 1 Common polymer materials such as plastics and rubber need to be further improved due to their large molecular weight, processing performance, and mechanical properties. A general-purpose polymer additive. Commonly used plasticizers for rubber mainly include: petroleum-based plasticizers, coal tar plasticizers, pine tar-based plasticizers, fatty oil-based plasticizers, and synthetic plasticizers. Plastics are still derived from petroleum fossil resources, which still cannot meet the purpose of environmental protection and energy saving. [0003] 2 Polyester plasticizer is a kind of synthetic plasticizer. As polyester plasticizer, its molecular weight is generally between 1000 and 8000. Polyester plasticizer has low volatility, low migration, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L67/06C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06C08G63/06
CPCC08G63/06C08L7/00C08L67/06C08K13/02C08K3/04C08K2003/2296C08K5/09C08K3/06
Inventor 张立群李满强胡潇然李炎
Owner BEIJING UNIV OF CHEM TECH
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