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One-step continuously-mixed rubber compound for automobile sealing strips and preparation method thereof

A technology for automotive sealing strips and compounded rubber, which is applied in sustainable manufacturing/processing, climate sustainability, chemical industry, etc. It can solve the problems of dead rubber and other problems, and achieve reduced parking steps, short production cycle, and high vulcanization performance. stable effect

Active Publication Date: 2019-02-22
ZHEJIANG XIANTONG RUBBER & PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If sulfur and accelerators are added to the internal mixer according to the one-stage rubber mixing process in the above patent, according to its formula and mixing process, it will cause dead rubber in the rubber compound during the mixing process.
Therefore, the one-stage rubber mixing process of the auxiliary machine parallel connection is not suitable for the rubber compound used for automobile sealing strips, especially the preparation of sponge rubber compound

Method used

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  • One-step continuously-mixed rubber compound for automobile sealing strips and preparation method thereof
  • One-step continuously-mixed rubber compound for automobile sealing strips and preparation method thereof
  • One-step continuously-mixed rubber compound for automobile sealing strips and preparation method thereof

Examples

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Effect test

Embodiment 1

[0057] The embodiment of the present invention discloses a one-step continuous mixing rubber compound for automobile sealing strips and a preparation method thereof, and the adopted technical scheme is as follows:

[0058] A one-step continuous mixing rubber compound for automobile sealing strips, the raw materials in parts by weight consist of: 65 parts of EPDM raw rubber (4770), 35 parts of EPDM raw rubber (4570), 190 parts of N-550 carbon black , 100 parts of calcium carbonate, 120 parts of paraffin oil, 8 parts of zinc oxide, 1 part of stearic acid, 2 parts of polyethylene glycol, 12 parts of calcium oxide, 1.2 parts of sulfur, 0.3 parts of accelerator M, 0.5 parts of accelerator TMTD, Accelerator ETU 0.9 parts, accelerator ZDBC 1.45 parts, accelerator DM 1.2 parts, accelerator CBS 1 part, anti-scorch agent E-800.7 parts.

[0059] The preparation method of the compound rubber for automobile sealing strips by one-step continuous mixing is based on the above-mentioned compon...

Embodiment 2

[0075] The embodiment of the present invention discloses a one-step continuous mixing rubber compound for automobile sealing strips and a preparation method thereof, and the adopted technical scheme is as follows:

[0076] A one-step continuous mixing rubber compound for automobile sealing strips, the raw materials in parts by weight consist of: 100 parts of EPDM raw rubber (8600), 70 parts of N-550 carbon black, 40 parts of calcium carbonate, and 70 parts of paraffin oil 1 part, zinc oxide 8 parts, stearic acid 1 part, dispersant 1 part, calcium oxide 5 parts, sulfur 1.2 parts, accelerator M 1.3 parts, accelerator ETU 0.5 parts, accelerator ZDBC 1.3 parts, accelerator DPTT 0.8 parts , 0.9 parts of accelerator ZDEC, 0.6 parts of vulcanizing agent DTDM, 3 parts of foaming agent OBSH, 1 part of accelerator CBS, 0.9 parts of anti-scorch agent E-80.

[0077] The preparation method of the compound rubber for automobile sealing strips by one-step continuous mixing is based on the ab...

Embodiment 3

[0089] The embodiment of the present invention discloses a one-step continuous mixing rubber compound for automobile sealing strips and a preparation method thereof, and the adopted technical scheme is as follows:

[0090] A one-step continuous mixing rubber compound for automobile sealing strips, the raw materials in parts by weight consist of: 40 parts of EPDM raw rubber (4770), 60 parts of EPDM raw rubber (4570), 160 parts of carbon black N-550 , 80 parts of calcium carbonate, 100 parts of paraffin oil, 6 parts of zinc oxide, 1 part of stearic acid, 1 part of polyethylene glycol, 8 parts of calcium oxide, 1.3 parts of sulfur, 0.3 parts of accelerator M, 0.6 parts of accelerator TMTD, 1 part of accelerator ETU, 1.5 parts of accelerator ZDBC, 1.45 parts of accelerator DM, 1 part of accelerator CBS, 0.8 parts of anti-scorch agent E-80.

[0091] The preparation method of the compound rubber for automobile sealing strips by one-step continuous mixing is based on the above-mentio...

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Abstract

The invention discloses a one-step continuously-mixed rubber compound for automobile sealing strips and a preparation method thereof. The rubber compound comprises the following raw materials in partsby weight: 100 parts of EPDM (Ethylene-Propylene-Diene Monomer) raw rubber, 60-200 parts of carbon black, 30-100 parts of filler, 60-120 parts of paraffin oil, 7-12 parts of active agent, 8-12 partsof calcium oxide, 1-2.5 parts of vulcanizing agent, 4.3-10.9 parts of accelerator, 0.6-1 part of anti-scorching agent and 0-4 parts of foaming agent. The rubber compound disclosed by the invention hasthe beneficial effects that the rubber compound is stable in Mooney viscosity and vulcanization performance and good in consistency and when the rubber compound is used for the production of the automobile sealing strips, the obtained product is smooth in surface, few in particles and high in dimensional stability; and the preparation method disclosed by the invention has the beneficial effects of low cost, high efficiency, energy conservation and consumption reduction and has a broad market development prospect in the field of high-end automobile sealing strip preparation.

Description

technical field [0001] The invention relates to the technical field of manufacturing automobile sealing strips, in particular to a one-step continuous mixing rubber compound for automobile sealing strips and a preparation method thereof. Background technique [0002] As the growth rate of China's auto industry has slowed down in recent years, the voices for improving the quality of cars and reducing prices have become increasingly louder. The competition between auto manufacturers of independent brands and foreign brands has further intensified, and the pressure on product cost performance of auto parts manufacturers has continued to increase. Under the premise of ensuring the improvement of automobile quality level, reducing the manufacturing cost of auto parts to the greatest extent has become an important means for various parts manufacturers to enhance the core competitiveness of products. Sealing strips are a relatively common part of automobiles. In addition to meeting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L91/06C08K13/02C08K3/04C08K3/22C08K3/26C08K5/09C08J9/10
CPCC08J9/0023C08J9/0033C08J9/0061C08J9/0066C08J9/105C08J2203/04C08J2323/16C08J2491/06C08K3/04C08K5/09C08K13/02C08K2003/2206C08K2003/2296C08K2003/265Y02P20/10
Inventor 泮海明卲学军俞金伟成涛周卫星泮熠朝
Owner ZHEJIANG XIANTONG RUBBER & PLASTIC CO LTD
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