阅读说明：本技术 一种氯磺化聚乙烯橡胶及其生产工艺 (Chlorosulfonated polyethylene rubber and production process thereof ) 是由 孙贵元 张润谱 张鹏 于 2019-04-10 设计创作，主要内容包括：一种氯磺化聚乙烯橡胶及其生产工艺,包括以下步骤：(1)按配比称取氯磺化聚乙烯90-110份、二辛脂5-20份、硬脂酸钠1-2份、顺丁橡胶3-5份、丁苯橡胶2-6份、季戊四醇2-4份、TOTM油5-10份、偶联剂2-3份,送入密炼机中混炼；(2)称取纳米硅酸盐20-40份、轻质碳酸钙10-35份、白炭黑10-30份、氧化镁5-15份,加入研磨机中以80-120r/min,研磨20-30min,得混合粉末；(3)将所述补强填充剂25-60份、环氧树脂5-20份、脱模剂2-3份、增粘树脂0.5-4份、AW防老剂1-3份,与步骤(1)得到的混合物料加入开炼机中混炼；(4)加入FL流动助剂1-4份、DM促进剂0.5-2.5份、DPTT促进剂0.5-2.5份、HVA-2促进剂0.5-2.5份,混炼；得氯磺化聚乙烯橡胶。本发明提供的氯磺化聚乙烯橡胶具有优异的耐热性能、耐介质性能、耐油及耐燃性能。(A chlorosulfonated polyethylene rubber and a production process thereof comprise the following steps: (1) weighing 90-110 parts of chlorosulfonated polyethylene, 5-20 parts of dioctyl phthalate, 1-2 parts of sodium stearate, 3-5 parts of butadiene rubber, 2-6 parts of styrene butadiene rubber, 2-4 parts of pentaerythritol, 5-10 parts of TOTM oil and 2-3 parts of coupling agent according to the proportion, and feeding the materials into an internal mixer for mixing; (2) weighing 20-40 parts of nano silicate, 10-35 parts of light calcium carbonate, 10-30 parts of white carbon black and 5-15 parts of magnesium oxide, adding into a grinding machine, and grinding for 20-30min at a speed of 80-120r/min to obtain mixed powder; (3) adding 25-60 parts of reinforcing filler, 5-20 parts of epoxy resin, 2-3 parts of release agent, 0.5-4 parts of tackifying resin and 1-3 parts of AW (ethylene diamine tetraacetic acid) anti-aging agent and the mixed material obtained in the step (1) into an open mill for mixing; (4) adding FL flow assistant 1-4 weight portions, DM promoter 0.5-2.5 weight portions, DPTT promoter 0.5-2.5 weight portions, and HVA-2 promoter 0.5-2.5 weight portions, and mixing; to obtain the chlorosulfonated polyethylene rubber. The chlorosulfonated polyethylene rubber provided by the invention has excellent heat resistance, medium resistance, oil resistance and flame resistance.)

1. The chlorosulfonated polyethylene rubber is characterized by comprising the following components in parts by weight: 90-110 parts of chlorosulfonated polyethylene, 25-60 parts of reinforcing filler, 20-40 parts of nano silicate, 10-30 parts of white carbon black, 10-35 parts of light calcium carbonate, 5-20 parts of dioctyl ester, 5-20 parts of epoxy resin, 1-2 parts of sodium stearate, 3-5 parts of butadiene rubber, 2-6 parts of styrene butadiene rubber, 2-4 parts of pentaerythritol, 5-10 parts of TOTM oil, 2-3 parts of coupling agent, 2-3 parts of mold release agent, 0.5-4 parts of tackifying resin, 1-3 parts of AW (ethylene glycol) antioxidant, 5-15 parts of magnesium oxide, 1-4 parts of FL flow promoter, 0.5-2.5 parts of DM promoter, 0.5-2.5 parts of DPTT promoter and 0.5-2.5 parts of HVA-2 promoter.

2. A production process of chlorosulfonated polyethylene rubber is characterized by comprising the following steps:

(1) weighing 90-110 parts of chlorosulfonated polyethylene, 5-20 parts of dioctyl phthalate, 1-2 parts of sodium stearate, 3-5 parts of butadiene rubber, 2-6 parts of styrene butadiene rubber, 2-4 parts of pentaerythritol, 5-10 parts of TOTM oil and 2-3 parts of coupling agent according to the proportion, and feeding the materials into an internal mixer for mixing for 8-12min at the mixing temperature of 65-75 ℃;

(2) weighing 20-40 parts of nano silicate, 10-35 parts of light calcium carbonate, 10-30 parts of white carbon black and 5-15 parts of magnesium oxide, adding into a grinding machine, and grinding for 20-30min at a speed of 80-120r/min to obtain mixed powder;

(3) adding 25-60 parts of reinforcing filler, 5-20 parts of epoxy resin, 2-3 parts of release agent, 0.5-4 parts of tackifying resin and 1-3 parts of AW (ethylene diamine tetraacetic acid) anti-aging agent and the mixture obtained in the step (1) into an open mill, and completely mixing at the mixing temperature of 75-85 ℃ for 3-4 min;

(4) heating to 88-93 deg.C, adding FL flow promoter 1-4 parts, DM accelerator 0.5-2.5 parts, DPTT accelerator 0.5-2.5 parts, and HVA-2 accelerator 0.5-2.5 parts, mixing for 1-3min, and cooling to 15-35 deg.C under ventilation to obtain chlorosulfonated polyethylene rubber.

3. The production process of chlorosulfonated polyethylene rubber according to claim 1, which is characterized by comprising the following components in parts by weight: 90 parts of chlorosulfonated polyethylene, 25 parts of reinforcing filler, 20 parts of nano silicate, 10 parts of white carbon black, 10 parts of light calcium carbonate, 5 parts of dioctyl ester, 5 parts of epoxy resin, 1 part of sodium stearate, 3-5 parts of butadiene rubber, 2 parts of styrene butadiene rubber, 2 parts of pentaerythritol, 5 parts of TOTM oil, 2 parts of coupling agent, 2 parts of mold release agent, 0.5 part of tackifying resin, 1 part of AW anti-aging agent, 5 parts of magnesium oxide, 1 part of FL flow promoter, 0.5 part of DM promoter, 0.5 part of DPTT promoter and 0.5 part of HVA-2 promoter.

4. The production process of chlorosulfonated polyethylene rubber according to claim 1, which is characterized by comprising the following components in parts by weight: 110 parts of chlorosulfonated polyethylene, 60 parts of reinforcing filler, 40 parts of nano silicate, 30 parts of white carbon black, 35 parts of light calcium carbonate, 20 parts of dioctyl ester, 20 parts of epoxy resin, 2 parts of sodium stearate, 5 parts of butadiene rubber, 6 parts of styrene butadiene rubber, 4 parts of pentaerythritol, 10 parts of TOTM oil, 3 parts of coupling agent, 3 parts of mold release agent, 4 parts of tackifying resin, 3 parts of AW anti-aging agent, 15 parts of magnesium oxide, 4 parts of FL flow promoter, 2.5 parts of DM promoter, 2.5 parts of DPTT promoter and 2.5 parts of HVA-2 promoter.

5. The production process of chlorosulfonated polyethylene rubber according to claim 1, which is characterized by comprising the following components in parts by weight: 100 parts of chlorosulfonated polyethylene, 40 parts of reinforcing filler, 30 parts of nano silicate, 20 parts of white carbon black, 22 parts of light calcium carbonate, 12 parts of dioctyl ester, 12 parts of epoxy resin, 2 parts of sodium stearate, 3 parts of butadiene rubber, 4 parts of styrene butadiene rubber, 3 parts of pentaerythritol, 7 parts of TOTM oil, 2 parts of coupling agent, 3 parts of mold release agent, 2 parts of tackifying resin, 2 parts of AW anti-aging agent, 10 parts of magnesium oxide, 2 parts of FL flow promoter, 1 part of DM promoter, 1 part of DPTT promoter and 1 part of HVA-2 promoter.

6. The process for producing chlorosulfonated polyethylene rubber according to claim 1, wherein the chlorosulfonated polyethylene has a volatile content of 1% or less, a chlorine content of 33 to 37%, a sulfur content of 0.8 to 1.2%, and a mooney viscosity of 40 to 60.

7. The process for producing chlorosulfonated polyethylene rubber according to claim 1, wherein the epoxy resin is E51 epoxy resin having an epoxy equivalent weight of 175-210 and an epoxy value of 0.48-0.51.

8. The process for producing a chlorosulfonated polyethylene rubber according to claim 1, wherein the dioctyl ester is one of dioctyl phthalate, dioctyl adipate, or dioctyl azelate.

9. The process for producing chlorosulfonated polyethylene rubber according to claim 1, wherein methyl silicone oil is used as the mold release agent.

10. The process for producing chlorosulfonated polyethylene rubber according to claim 1, wherein 2402 phenol resin is used as the tackifying resin.

Technical Field

The invention relates to chlorosulfonated polyethylene rubber, in particular to chlorosulfonated polyethylene rubber and a production process thereof.

Background

In recent years, with the rapid development of the automobile industry, the requirements of automobile rubber pipes on rubber materials are higher and higher, and chlorosulfonated polyethylene rubber (CSM) materials are widely applied to automobile connecting rubber pipes such as automobile air vent rubber pipes due to good heat resistance, aging resistance, flame resistance and medium resistance. In the whole vehicle design process, the light weight, compactness and reasonable layout of the vehicle are considered, and parts cannot interfere with each other. The whole vehicle is designed with a plurality of parts made of large and small metals, the space shape and the trend are difficult to bend freely, the rubber hose plays an important role, and the defects of mutual friction, mutual interference, difficult bending, poor sealing performance of an interface of a butt joint part and the like between a metal part and a metal hard pipe are overcome.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a production process of chlorosulfonated polyethylene rubber, which can replace a chlorosulfonated polyethylene formula containing harmful metal oxides. The chlorosulfonated polyethylene rubber formula can meet the performance requirement, and the used materials are environment-friendly and safe to human bodies.

The technical scheme adopted by the invention for solving the technical problems is as follows: a production process of chlorosulfonated polyethylene rubber comprises the following components in parts by weight: 90-110 parts of chlorosulfonated polyethylene, 25-60 parts of reinforcing filler, 20-40 parts of nano silicate, 10-30 parts of white carbon black, 10-35 parts of light calcium carbonate, 5-20 parts of dioctyl ester, 5-20 parts of epoxy resin, 1-2 parts of sodium stearate, 3-5 parts of butadiene rubber, 2-6 parts of styrene butadiene rubber, 2-4 parts of pentaerythritol, 5-10 parts of TOTM oil, 2-3 parts of coupling agent, 2-3 parts of mold release agent, 0.5-4 parts of tackifying resin, 1-3 parts of AW (ethylene glycol) antioxidant, 5-15 parts of magnesium oxide, 1-4 parts of FL flow promoter, 0.5-2.5 parts of DM promoter, 0.5-2.5 parts of DPTT promoter and 0.5-2.5 parts of HVA-2 promoter.

A production process of chlorosulfonated polyethylene rubber comprises the following steps:

(1) weighing 90-110 parts of chlorosulfonated polyethylene, 5-20 parts of dioctyl phthalate, 1-2 parts of sodium stearate, 3-5 parts of butadiene rubber, 2-6 parts of styrene butadiene rubber, 2-4 parts of pentaerythritol, 5-10 parts of TOTM oil and 2-3 parts of coupling agent according to the proportion, and feeding the materials into an internal mixer for mixing for 8-12min at the mixing temperature of 65-75 ℃;

(2) weighing 20-40 parts of nano silicate, 10-35 parts of light calcium carbonate, 10-30 parts of white carbon black and 5-15 parts of magnesium oxide, adding into a grinding machine, and grinding for 20-30min at a speed of 80-120r/min to obtain mixed powder;

(3) adding 25-60 parts of reinforcing filler, 5-20 parts of epoxy resin, 2-3 parts of release agent, 0.5-4 parts of tackifying resin and 1-3 parts of AW (ethylene diamine tetraacetic acid) anti-aging agent and the mixture obtained in the step (1) into an open mill, and completely mixing at the mixing temperature of 75-85 ℃ for 3-4 min;

(4) heating to 88-93 deg.C, adding FL flow promoter 1-4 parts, DM accelerator 0.5-2.5 parts, DPTT accelerator 0.5-2.5 parts, and HVA-2 accelerator 0.5-2.5 parts, mixing for 1-3min, and cooling to 15-35 deg.C under ventilation to obtain chlorosulfonated polyethylene rubber.

Compared with the prior art, the invention has the advantages that:

(1) the chlorosulfonated polyethylene rubber provided by the invention solves the problem that the conventional formula is easy to cause scorching and harm and pollution to personnel, equipment and environment. Firstly, 90-110 parts of chlorosulfonated polyethylene, 5-20 parts of dioctyl ester, 1-2 parts of sodium stearate, 3-5 parts of butadiene rubber, 2-6 parts of styrene butadiene rubber, 2-4 parts of pentaerythritol, 5-10 parts of TOTM oil and 2-3 parts of coupling agent are fed into an internal mixer to be mixed, then 25-60 parts of reinforcing filler, 5-20 parts of epoxy resin, 2-3 parts of release agent, 0.5-4 parts of tackifying resin and 1-3 parts of AW anti-aging agent are added into the internal mixer to be mixed, drying treatment on all materials is not needed, and production cost is saved. The anti-aging agent can reduce the cost, improve the adhesiveness and the like, and improve the processing performance.

(2) The chlorosulfonated polyethylene rubber provided by the invention is added with the release agent and the magnesium oxide, so that the smoothness and cleanliness of the chlorosulfonated polyethylene rubber are improved, the surface of the chlorosulfonated polyethylene is easy to separate, smooth and clean, and the magnesium oxide can effectively absorb byproducts such as hydrogen chloride.

(3) The chlorosulfonated polyethylene rubber provided by the invention has excellent heat resistance, medium resistance, oil resistance and flame resistance.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the production process of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings, in order that the present disclosure may be more fully understood and fully conveyed to those skilled in the art. While the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the invention is not limited to the embodiments set forth herein.

A production process of chlorosulfonated polyethylene rubber comprises the following components in parts by weight: 90-110 parts of chlorosulfonated polyethylene, 25-60 parts of reinforcing filler, 20-40 parts of nano silicate, 10-30 parts of white carbon black, 10-35 parts of light calcium carbonate, 5-20 parts of dioctyl ester, 5-20 parts of epoxy resin, 1-2 parts of sodium stearate, 3-5 parts of butadiene rubber, 2-6 parts of styrene butadiene rubber, 2-4 parts of pentaerythritol, 5-10 parts of TOTM oil, 2-3 parts of coupling agent, 2-3 parts of mold release agent, 0.5-4 parts of tackifying resin, 1-3 parts of AW (ethylene glycol) antioxidant, 5-15 parts of magnesium oxide, 1-4 parts of FL flow promoter, 0.5-2.5 parts of DM promoter, 0.5-2.5 parts of DPTT promoter and 0.5-2.5 parts of HVA-2 promoter.

A production process of chlorosulfonated polyethylene rubber comprises the following steps:

(1) weighing 90-110 parts of chlorosulfonated polyethylene, 5-20 parts of dioctyl phthalate, 1-2 parts of sodium stearate, 3-5 parts of butadiene rubber, 2-6 parts of styrene butadiene rubber, 2-4 parts of pentaerythritol, 5-10 parts of TOTM oil and 2-3 parts of coupling agent according to the proportion, and feeding the materials into an internal mixer for mixing for 8-12min at the mixing temperature of 65-75 ℃;

(2) weighing 20-40 parts of nano silicate, 10-35 parts of light calcium carbonate, 10-30 parts of white carbon black and 5-15 parts of magnesium oxide, adding into a grinding machine, and grinding for 20-30min at a speed of 80-120r/min to obtain mixed powder;

(3) adding 25-60 parts of reinforcing filler, 5-20 parts of epoxy resin, 2-3 parts of release agent, 0.5-4 parts of tackifying resin and 1-3 parts of AW (ethylene diamine tetraacetic acid) anti-aging agent and the mixture obtained in the step (1) into an open mill, and completely mixing at the mixing temperature of 75-85 ℃ for 3-4 min;

(4) heating to 88-93 deg.C, adding FL flow promoter 1-4 parts, DM accelerator 0.5-2.5 parts, DPTT accelerator 0.5-2.5 parts, and HVA-2 accelerator 0.5-2.5 parts, mixing for 1-3min, and cooling to 15-35 deg.C under ventilation to obtain chlorosulfonated polyethylene rubber.

Specifically optimized, the chlorosulfonated polyethylene has the volatile component of less than or equal to 1 percent, the chlorine content of 33-37 percent, the sulfur content of 0.8-1.2 percent and the Mooney viscosity of 40-60 percent.

Specifically, the epoxy resin is E51 epoxy resin, the epoxy equivalent is 175-210, and the epoxy value is 0.48-0.51.

Particularly preferably, the dioctyl ester is one of dioctyl phthalate, dioctyl adipate or dioctyl azelate.

Specifically, the release agent is methyl silicone oil.

Particularly optimized, 2402 phenolic resin is adopted as tackifying resin.