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Fluorine rubber material and preparation method thereof

A fluororubber and rubber-based technology, applied in the field of fluororubber materials and their preparation, can solve problems such as the inability of rubber to be used for a long time, and achieve the effects of reducing compression deformation, small volume change and increasing stability

Active Publication Date: 2022-06-17
PLA NO 5719 FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that existing rubber cannot be used for a long time in polyol ester lubricating oil, the first technical problem to be solved by the present invention is to provide a fluororubber material

Method used

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  • Fluorine rubber material and preparation method thereof

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preparation example Construction

[0019] Aiming at the problem that the existing rubber cannot be used for a long time in the polyol ester lubricating oil, the invention proposes a fluororubber material and a preparation method thereof. The raw materials of the fluororubber material include the following components, in parts by mass: 90-110 parts of rubber base material, 40-50 parts of reinforcing agent, 2-4 parts of vulcanizing agent, 1-2 parts of vulcanization auxiliary, acid absorption 5-10 parts of vulcanization accelerator, 1-2 parts of vulcanization accelerator.

[0020] The preparation method of the above-mentioned fluororubber material, comprises the following steps:

[0021] (1) First, adjust the temperature of the twin rolls of the twin-roll rubber mill to 25-80°C, the feeding amount at one time is less than 10kg, the roll distance is 5-10mm, and the roll speed ratio is 1:1-1.5, and then the rubber base material is placed on the double-roller. Thinly pass 5 to 15 times in the rubber mixing machine t...

Embodiment 1

[0036] (1) First, adjust the temperature of the twin rolls of the twin-roll rubber mill to 50°C, adopt a roll distance of 5mm, a feeding amount of 5kg at a time, and a roll speed ratio of 1:1.25. According to the formula 1 in Table 1, the FLT-Ⅰ type fluorine 100 parts of ether rubber base material were thinly passed 10 times in a two-roll rubber mixing machine to form a uniform roll material, adjust the roll distance to keep a small amount of accumulated rubber, and add other auxiliary materials in turn: 45 parts of pyrolysis carbon black, triallyl 3 parts of isocyanurate, 1 part of dicumyl peroxide, 5 parts of zinc oxide, and 1 part of octadecyl methacrylate; The materials and auxiliary materials are mixed evenly, and the mixing process should be as fast as possible to prevent over-refining and sticking. The mixture is repeatedly put into and passed through the double rolls of the rubber mixing machine. During the repeated mixing process, the distance between the double rolls...

Embodiment 2

[0039](1) First, adjust the temperature of the two rollers of the two-roll rubber mill to 50°C, adopt a 5mm roller distance, a feeding amount of 5kg at a time, and a roller speed ratio of 1:1.25. According to the formula 2 in Table 1, the FLT-I type fluorine 100 parts of ether rubber base material were thinly passed 10 times in a two-roll rubber mixing machine to form a uniform roll material, adjust the roll distance to keep a small amount of accumulated rubber, and add other auxiliary materials in turn: 45 parts of pyrolysis carbon black, triallyl 3 parts of isocyanurate, 1 part of 2,5-dimethyl-2,5-dihexane, 5 parts of zinc oxide, 1 part of octadecyl methacrylate; after the feeding is completed, thin pass 10 times , beat the triangle bag 15 times to make the base material and auxiliary material mix evenly, and the mixing process should be as fast as possible to prevent over-refining and sticking. The mixture is repeatedly put into and passed through the double rolls of the ru...

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Abstract

The invention belongs to the technical field of rubber, in particular to a fluororubber material and a preparation method thereof. Aiming at the problem that existing rubber cannot be used for a long time in polyol ester lubricating oil, the present invention provides a fluorine rubber material and a preparation method thereof. The fluororubber material raw material includes the following components in parts by mass: 90-110 parts of rubber base material, 40-50 parts of reinforcing agent, 2-4 parts of vulcanizing agent, 1-2 parts of vulcanization auxiliary agent, acid absorbing agent 5-10 parts, 1-2 parts of vulcanization accelerator. The fluororubber material is made by kneading and vulcanizing raw materials. The prepared fluorine rubber material has high hardness in polyol ester lubricating oil, small volume change and reduced compression set performance, and can be used in polyol ester lubricating oil for a long time.

Description

technical field [0001] The invention belongs to the technical field of rubber, and particularly relates to a fluororubber material and a preparation method thereof. Background technique [0002] The oil resistance of rubber refers to the ability of rubber to attenuate its performance after being soaked in oil. When rubber products are in contact with various oils for a long time, on the one hand, the oil can penetrate into the rubber, causing it to expand or increase in volume; on the other hand , the oil medium can draw out soluble compounding agents from the rubber, resulting in shrinkage or volume reduction of the rubber. Usually, the swelling increases with the increase of the contact time between the rubber and the oil medium, until the oil is no longer absorbed, and then the volume expansion remains stable, resulting in the expansion of the originally tightly arranged network cross-linked structure, and the performance of the rubber product drops sharply, resulting in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/18C08L29/10C08K13/02C08K3/04C08K5/3492C08K5/14C08K3/22C08K5/101
CPCC08K13/02C08K3/04C08K5/34924C08K5/14C08K3/22C08K5/101C08K2003/2296C08L27/18C08L29/10
Inventor 彭中亚杨睿杨晓飞苏正涛王珍张东晋川陈摇李晓超何辉
Owner PLA NO 5719 FACTORY
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