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Preparation method of high-performance organic synthetic fiber rubber compound

A synthetic fiber and high-performance technology, which is applied in the field of preparation of high-performance organic synthetic fiber compound rubber, can solve the problem of uneven dispersion of high-performance organic synthetic fiber, easy wrapping of high-performance synthetic fiber, and unfavorable dispersion of high-performance synthetic fiber and other problems, to achieve excellent performance and quality stability, improve performance and quality stability, and shorten the mixing time

Active Publication Date: 2022-04-12
锐牛股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional mixing method of high-performance organic synthetic fibers in rubber is to put high-performance synthetic fibers into rubber together with other raw materials. High-performance synthetic fibers are easy to be wrapped, which is not conducive to the dispersion of high-performance synthetic fibers.
The high-performance organic synthetic fibers are unevenly dispersed in the rubber compound, which not only does not have a beneficial effect, but is equivalent to impurities. There will be obvious high-performance synthetic fiber clumping on the surface of the rubber compound, which will easily lead to stress concentration points in the compound rubber. It will speed up the cracking speed of the mixed rubber, prolong the mixing time, high energy consumption, high production cost, and increase the risk of scorching, causing the mixed rubber to be aged and scrapped

Method used

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  • Preparation method of high-performance organic synthetic fiber rubber compound
  • Preparation method of high-performance organic synthetic fiber rubber compound
  • Preparation method of high-performance organic synthetic fiber rubber compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiments 1-14 provide a method for preparing high-performance organic synthetic fiber rubber compound, which will be described below by taking Embodiment 1 as an example.

[0039] The preparation method of the high-performance organic synthetic fiber rubber compound that embodiment 1 provides, its steps are:

[0040] S1. Add 2kg of carbon black to 10kg of chloroprene rubber, mix for 200s at a speed of 30r / min, and discharge at 100°C to make a masterbatch;

[0041] S2. Cool the masterbatch prepared in step S1 to 25°C, then add 2kg of aramid fiber, put it into the internal mixer, and stir for 200s at a speed of 30r / min; then add 0.2kg of anti-aging agent RD to the internal mixer , 0.2kg anti-aging agent ODA, 0.2kg stearic acid, 0.8kg paraffin oil and 4kg carbon black, mixed at a speed of 25r / min for 400s, and deglued at 110°C;

[0042] S3. Finally, 0.5 kg of zinc oxide, 0.3 kg of magnesium oxide and 0.05 kg of accelerator ETU are put into the mixture. After mixing eve...

Embodiment 2-3

[0043] Examples 2-3 are different from Example 1 in that the quality of each preparation raw material is different, see Table 1 for details.

[0044] The quality of each preparation raw material of table 1 embodiment 1-3

[0045]

Embodiment 4-7

[0046] Examples 4-7 are different from Example 2 in that the quality of the carbon black in the S1 step and the carbon black in the S2 step are different, see Table 2 for details.

[0047] Table 2 embodiment 2,4-7S1 and the quality of S2 step carbon black

[0048]

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Abstract

The invention discloses a preparation method of a high-performance organic synthetic fiber rubber compound, which comprises the following steps: S1, adding 1 / 3-2 / 3 mass of carbon black into raw rubber, and mixing for the first time to prepare master batch; s2, adding high-performance organic synthetic fibers into the master batch prepared in the step S1, stirring, then adding an anti-aging agent, stearic acid, a plasticizer and residual carbon black, and carrying out secondary mixing; and S3, finally adding a vulcanizing agent and an accelerant, and carrying out open milling to obtain the high-performance organic synthetic fiber rubber compound. According to the preparation method disclosed by the invention, the dispersity of the high-performance synthetic fibers in the rubber compound is improved, the mixing time is shortened, the energy consumption is reduced, the production cost is low, the risk of scorching is basically avoided, and the risk of aging of the rubber compound is reduced, so that the warp-wise tearing strength, the warp-wise tensile strength, the stress at definite elongation of 10% and the elongation at definite stress of the rubber compound are improved; and the performance and the quality stability of the rubber compound are better.

Description

technical field [0001] The invention relates to the field of compound rubber, in particular to a preparation method of high-performance organic synthetic fiber compound rubber. Background technique [0002] High-performance organic synthetic fibers have the characteristics of high strength, high modulus, low density, wear resistance and high temperature resistance, and are widely used in many fields such as my country's aerospace, automobile, electromechanical, construction, sports, wire and cable, transmission belt, etc. It is an indispensable material in future life. [0003] The traditional mixing method of high-performance organic synthetic fibers in rubber is to put high-performance synthetic fibers into rubber together with other raw materials. High-performance synthetic fibers are easy to be wrapped, which is not conducive to the dispersion of high-performance synthetic fibers. High-performance organic synthetic fibers are unevenly dispersed in the rubber compound, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L77/10C08K3/04
CPCY02T10/86
Inventor 庄士平孙雯雯李强强宋方圆
Owner 锐牛股份有限公司
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