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Rubber compound additive particle, preparation method thereof and application of particle

A rubber and particle technology, applied in the field of rubber auxiliaries, can solve problems such as the impact on the health of workers, flying dust, and increased product defect rate, and achieve the effects of benefiting health, reducing weighing errors, and improving dispersion effects.

Inactive Publication Date: 2018-12-25
河北省同创交通工程配套产品产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rubber products need to add activators, anti-aging agents, accelerators, vulcanizing agents and other types of additives. Each type of additive has only a single effect and needs to be used in conjunction with various additives. The traditional method is to use manual measurement one by one Adding, low work efficiency, easy to add more or omit to add, increase the defective rate of products
Since rubber additives are mostly in the form of dry powder, the volume density is small, they are easy to agglomerate, and it is not easy to disperse evenly in rubber, and a large amount of dust will be generated when weighing and adding, which will easily cause excessive dust in the workplace and pollute the environment. , have a serious impact on the health of the staff

Method used

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  • Rubber compound additive particle, preparation method thereof and application of particle
  • Rubber compound additive particle, preparation method thereof and application of particle
  • Rubber compound additive particle, preparation method thereof and application of particle

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preparation example Construction

[0027] The present invention also provides a preparation method for rubber compounding auxiliary particles described in the above technical solution, comprising the following steps:

[0028] (1) premixing zinc oxide, stearic acid, anti-aging agent, anti-scorch agent, accelerator and vulcanizing agent to obtain a premix;

[0029] (2) mixing the premixed material obtained in the step (1) with rubber to obtain a mixed material;

[0030] (3) extruding and granulating the kneaded material obtained in the step (2) to obtain rubber compounding aid granules.

[0031] The invention premixes zinc oxide, stearic acid, anti-aging agent, anti-scorch agent, accelerator and vulcanizing agent to obtain a premixed material. In the present invention, the premixing is preferably performed in a ball mill. In the present invention, the premixing time is preferably 5-10 minutes, more preferably 7-9 minutes. In the present invention, the rotational speed of the ball mill is preferably 800-1000 r / ...

Embodiment 1

[0041] The ratio of each component of rubber compounding additive particles is as follows:

[0042] 25 parts of natural rubber, 6 parts of zinc oxide, 4 parts of stearic acid, 2 parts of anti-aging agent AW, 2 parts of anti-aging agent RD, 2 parts of microcrystalline wax, 0.6 parts of anti-scorch agent CTP, 1.5 parts of accelerator DM, and accelerator CZ 2 parts, sulfur 3 parts.

[0043] The preparation method comprises the following steps:

[0044] Accurately weigh the raw materials required for preparing the multifunctional compound additive according to the proportion.

[0045] Put the weighed raw materials (except natural rubber) into the ball mill, the weight ratio of ball to material is 2:1, the speed is 1000r / min, and grind for 8 minutes.

[0046] Put the natural rubber into the internal mixer for masticating, the internal mixer speed is 40r / min, masticate for 10min, then put the ground additives into the internal mixer for mixing, the internal mixer speed is 30r / min m...

Embodiment 2

[0055] The ratio of each component of rubber compounding additive particles is as follows:

[0056] 30 parts of EPDM rubber, 8 parts of zinc oxide, 3 parts of stearic acid, 6 parts of microcrystalline wax, 1 part of accelerator TMTD, 1 part of anti-scorch agent EC, 1.2 parts of accelerator BZ, 1.6 parts of accelerator CZ, 4 parts of dicumyl peroxide (DCP).

[0057] The preparation method comprises the following steps:

[0058] Accurately weigh the raw materials required for preparing the multifunctional compound additive according to the proportion.

[0059] Put the weighed raw materials (except natural rubber) into the ball mill, the weight ratio of ball to material is 2:1, the speed is 800r / min, and grind for 12 minutes.

[0060] Put the natural rubber into the internal mixer for masticating, the internal mixer speed is 30r / min, masticate for 20min, then put the ground additives into the internal mixer for mixing, the internal mixer speed is 40r / min min, the kneading temp...

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Abstract

The invention provides a rubber compound additive particle, and belongs to the technical field of rubber. The rubber compound additive particle comprises, by weight, 20-30 parts of rubber, 5-8 parts of zinc oxide, 3-5 parts of stearic acid, 4-6 parts of anti-aging agents, 0.5-1 part of scorch retarders, 3-5 parts of accelerators and 2-4 parts of vulcanizing agents. The particle is cylindrical, thediameter of the particle is 2-5mm, and the height of the particle is 5-10mm. The rubber compound additive particle has functions of activating agents, the anti-aging agents, the accelerators, the vulcanizing agents and the scorch retarders, a small number of additives are used, the same effects can be achieved as compared with a traditional production process, the multifunctional rubber compoundadditive particle is a colloidal particle, on one hand, dispersion effects of various rubber additives in rubber can be effectively improved, on the other hand, matching is facilitated, weighing errors are reduced, environmental pollution caused by dust in production is decreased, and physical health of operators is facilitated.

Description

technical field [0001] The invention relates to the technical field of rubber additives, in particular to rubber compounding additive particles and a preparation method and application thereof. Background technique [0002] Rubber products need to add activators, anti-aging agents, accelerators, vulcanizing agents and other types of additives. Each type of additive has only a single effect and needs to be used in conjunction with various additives. The traditional method is to use manual measurement one by one Adding, the work efficiency is low, and it is easy to add too much or miss adding, which will increase the defective rate of the product. Since rubber additives are mostly in the form of dry powder, the volume density is small, they are easy to agglomerate, and it is not easy to disperse evenly in rubber, and a large amount of dust will be generated when weighing and adding, which will easily cause excessive dust in the workplace and pollute the environment. , have a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L23/16C08L91/06C08K3/22C08K5/09C08K3/06C08K3/04C08K5/14C08J3/22
CPCC08J3/226C08J2307/00C08J2323/16C08J2407/00C08J2423/16C08K2003/2296C08L7/00C08L23/16C08L2201/08C08L91/06C08K3/22C08K5/09C08K3/06C08K3/04C08K5/14
Inventor 李朋金家康刘建彬郭勇刘岳李翠陈少静赵雅婷季文涛刘欢赵国猛
Owner 河北省同创交通工程配套产品产业技术研究院
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