Propenyl elastomer composition and preparation method thereof

A technology of propylene-based elastomer and composition, which is applied in the field of propylene-based elastomer composition and preparation, can solve the problems of lack of competitiveness, low filling ability and high preparation cost, and achieves reduction of cost, improvement of reaction degree and improvement of stability Effect

Pending Publication Date: 2020-08-28
南京金陵塑胶化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Propylene-based elastomers are copolymers of ethylene and propylene that enhance durability, aesthetics, and versatility; are also more flexible at low temperatures; In density applications, the softness and flexibility of PBE propylene-based elastomer foam materials are comparable to polyurethane (PU) foam materials. In the production of various products such as textiles, artificial leather, fresh-keeping boxes, foaming materials, stationery cabinets, ice cream boxes, cosmeti

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1:

[0019] A propylene-based elastomer composition comprising 75 parts of propylene-based elastomer, 5 parts of foaming agent, 2 parts of ethylene propylene rubber, 3 parts of triallyl isocyanurate, and propylene The base elastomer includes 60 parts of propylene and 40 parts of ethylene. The performance characteristics of the propylene-based elastomer are based on ASTM D-1238, measured at 190°C / 2.16Kg, with a melt flow rate of 1.8-4.2g / 10min.

Example Embodiment

[0020] Example 2:

[0021] A propylene-based elastomer composition, in terms of parts by weight, comprises 86 parts of propylene-based elastomer, 9 parts of foaming agent, 5 parts of EPDM rubber, 9 parts of triallyl isocyanurate, and propylene The base elastomer includes 75 parts of propylene and 25 parts of ethylene. The performance characteristics of the propylene-based elastomer are based on ASTM D-1238, a melt flow rate of 1.8 to 4.2 g / 10 min measured at 190°C / 2.16 Kg.

Example Embodiment

[0022] Example 3:

[0023] A propylene-based elastomer composition comprising 80 parts of propylene-based elastomer, 7 parts of foaming agent, 4 parts of ethylene propylene rubber, and 6 parts of triallyl isocyanurate according to the ratio of parts by weight. The base elastomer includes 70 parts of propylene and 30 parts of ethylene. The performance characteristic of the propylene-based elastomer is a melt flow rate of 1.8-4.2 g / 10min measured according to ASTM D-1238, 190°C / 2.16Kg.

[0024] Further, the propylene-based elastomer has a molecular weight distribution (Mw / Mn) less than 3.2.

[0025] Further, the foaming agent is preferably sodium bicarbonate.

[0026] A preparation method of propylene-based elastomer composition includes the following steps:

[0027] a. Weigh propylene-based elastomer, foaming agent, EPDM and triallyl isocyanurate according to the weight ratio;

[0028] b. Put the material weighed in step a into the internal mixer for mixing;

[0029] c. After the second m...

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Abstract

The invention provides a propenyl elastomer composition and a preparation method thereof, and relates to the field of propenyl elastomers. The composition comprises a propenyl elastomer, a foaming agent, ethylene propylene diene monomer and triallyl isocyanurate in a certain ratio. The expression characteristics of the propenyl elastomer are as follows: according to ASTM D-1238, the melt flow ratemeasured at 190 DEG C/2.16 Kg is 1.8-4.2 g/10 min. The propenyl elastomer composition comprises the propenyl elastomer, the foaming agent, the ethylene propylene diene monomer and the triallyl isocyanurate in the certain ratio, so the propenyl elastomer composition of the formula can effectively reduce the cost of the propenyl elastomer composition under the condition of ensuring the stability; and in addition, according to the preparation method, the stability of the allyl elastomer composition is effectively improved through two times of mixing.

Description

technical field [0001] The invention relates to the field of propylene-based elastomers, in particular to a propylene-based elastomer composition and a preparation method. Background technique [0002] Propylene-based elastomers are copolymers of ethylene and propylene that enhance durability, aesthetics, and versatility; are also more flexible at low temperatures; In density applications, the softness and flexibility of PBE propylene-based elastomer foam materials are comparable to polyurethane (PU) foam materials. In the production of various products such as textiles, artificial leather, fresh-keeping boxes, foaming materials, stationery cabinets, ice cream boxes, cosmetic bottles, artificial turf, handles, etc., there is currently no domestic manufacturer capable of producing such propylene-based elastomers, and all rely on import. [0003] In addition, the research and development of existing propylene-based elastomer assemblies is relatively short, basically relying ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K5/3492C08J9/04C08J9/08
CPCC08J9/04C08J9/08C08J2323/14C08J2423/16C08J2203/02
Inventor 卢建飞辛宝山王晓顺
Owner 南京金陵塑胶化工有限公司
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