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Soybean oil based elastomer raw rubber, soybean oil based elastomer and preparation method thereof

A soybean oil-based, body raw rubber technology, applied in the field of polymer materials, can solve the problems of application limitation, low mechanical strength of materials, inability to further process, etc., and achieve the effects of improved mechanical properties, good thermal stability, and good oil resistance.

Active Publication Date: 2012-07-04
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it directly cross-links raw materials, it cannot be further processed to achieve good blending with reinforcing fillers such as carbon black and white carbon black, so its mechanical strength is low and cannot be further improved, and its application is greatly limited

Method used

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  • Soybean oil based elastomer raw rubber, soybean oil based elastomer and preparation method thereof
  • Soybean oil based elastomer raw rubber, soybean oil based elastomer and preparation method thereof
  • Soybean oil based elastomer raw rubber, soybean oil based elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: Preparation of epoxy soybean oil-decanediamine-succinic anhydride elastomer

[0025] Add 100 g of epoxidized soybean oil (epoxy value 6.0, the same below) and 36 g of decanediamine into a three-necked bottle, heat to 120 ° C, and pass N 2 Protected, reacted for 8 hours under stirring conditions, took it out, and dried it in a vacuum oven at 60°C for 5 hours to obtain the desired raw rubber. Its weight-average molecular weight is 165,000 as measured by a multi-angle laser light scattering instrument, and its glass transition temperature is -18°C as measured by differential scanning calorimetry.

[0026] Blend 100g of the above-mentioned raw rubber with 7g of succinic anhydride on an open mill for 15 minutes, and then place it on a flat vulcanizer for tableting at a temperature of 160°C for 70 minutes to obtain the desired elastomer.

Embodiment 2

[0027] Embodiment 2: Preparation of epoxy soybean oil-butylene diamine-sebacic acid elastomer

[0028] Add 100g of epoxidized soybean oil and 16g of butanediamine into a three-necked flask, heat to 120°C, and pass N 2 Protected, reacted for 6 hours under stirring conditions, took it out, and dried it in a vacuum oven at 60°C for 5 hours to obtain the desired raw rubber. Its weight-average molecular weight is 185,000 as measured by a multi-angle laser light scattering instrument, and its glass transition temperature is -15° C. as measured by differential scanning calorimetry.

[0029] Blend 100g of the above-mentioned raw rubber with 11g of sebacic acid and 60g of carbon black (N550) on an open mill for 25 minutes, then place it on a flat vulcanizer and press it into tablets at a temperature of 170°C for 40 minutes to obtain the desired elasticity. body.

Embodiment 3

[0030] Embodiment 3: the preparation of epoxy soybean oil-tetradecanediamine-maleic anhydride elastomer

[0031]Add 100g of epoxidized soybean oil and 40g of tetradecanediamine into a three-necked flask, heat to 120°C, pass N 2 Protected, reacted for 18 hours under stirring conditions, took it out, and dried it in a vacuum oven at 60°C for 5 hours to obtain the desired raw rubber. Its weight-average molecular weight is 78,000 as measured by a multi-angle laser light scattering instrument, and its glass transition temperature is -28°C as measured by differential scanning calorimetry.

[0032] Blend 100g of the above-mentioned raw rubber with 9g maleic anhydride and 60g white carbon black (DM10) on an open mill for 25min, and then place it on a flat vulcanizer for tableting at a temperature of 180°C for 30min to obtain the desired elastomer.

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Abstract

The invention relates to a soybean oil based elastomer and a preparation method thereof. An elastomer raw rubber is prepared by a ring-opening reaction of epoxy soybean oil and binary primary amines. The raw rubber and dicarboxylic acids or dicarboxylic anhydrides are mixed in an open mill, and the mixture is tabletted in a plate curometer to obtain the soybean oil based elastomer. The raw material used in the preparation method of the invention is mainly epoxy soybean oil; no introduction of catalysts or solvents is required during the reaction process; and the preparation method is environment-friendly.

Description

Technical field: [0001] The invention relates to soybean oil-based elastomer raw rubber, soybean oil-based elastomer and their preparation methods, belonging to the field of polymer materials. Background technique: [0002] Rubber occupies a very important position in the development of the national economy and is a strategic and irreplaceable material. In addition to natural rubber (about 22% of the total rubber) in the world, the rest is synthetic rubber. Due to the limitation of natural environment, the output of natural rubber is limited. Synthetic rubber is basically obtained through the synthesis of petroleum-based monomers. With the reduction of petroleum resources, its cost will become higher and higher. At the same time, because petroleum-based products are not renewable, and combustion generates a lot of CO 2 , increase carbon emissions and pollute the environment. In today's environment-friendly environment, it is of great significance to prepare renewable and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02C08G63/685C08L67/00
Inventor 张立群王朝韩悦周鑫鑫王润国张星黄兆辉
Owner BEIJING UNIV OF CHEM TECH
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