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Preparation method of anti-aging rubber

An anti-aging and rubber technology, which is applied in the field of preparation of anti-aging rubber, can solve the problems of not meeting the quality requirements and the performance of rubber products, etc., and achieve the effect of low rubber cost, reliable rubber quality and simple preparation

Pending Publication Date: 2021-11-12
上海瑞邦实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ensuing problem is that the performance of rubber products cannot keep up with the needs of technological development. The requirements for rubber materials in the high-tech field are high strength, wear resistance, corrosion resistance, and aging resistance. However, the current ordinary rubber products cannot meet the quality requirements. Require

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Including the following processing steps:

[0020] S1. Put the raw rubber in the plastic mixer, and then mechanically squeeze and rub the raw rubber through the plastic mixer. Under the action of mechanical extrusion and friction, the long-chain rubber molecules are degraded and shortened, and the high elastic state is changed. transition into a plastic state;

[0021] S2. Put the masticated raw rubber obtained in step 1 and other compounding agents into a rubber mixer for mechanical mixing, and obtain a rubber material after mixing, which is a mixed rubber;

[0022] S3. Fill the mixed rubber into the vulcanization tank, then pass in the vulcanizing agent, heat and keep warm at 160-200°C, so that the linear molecules of the raw rubber can be cross-linked to form a three-dimensional one by forming "sulfur bridges". Network structure, so that the plastic compound becomes a vulcanized rubber with high elasticity.

Embodiment 2

[0024] The compounding agent includes the following materials: activator, anti-scorch CTP, antioxidant, filler, reinforcing agent, softener, plasticizer, colorant, foaming agent, foaming aid, flame retardant and anti-aging agent. .

Embodiment 3

[0026] The antioxidant is aldehyde amine antioxidant, ketoneamine antioxidant, diaryl secondary amine antioxidant, phenolic antioxidant, heterocyclic antioxidant, phosphite antioxidant, long-acting antioxidant, One or more combinations of nickel salt antioxidants, wax antioxidants and composite antioxidants, because the protective effect of each antioxidant has its limitations, and the aging of rubber products in the actual use process is very important. The result of the influence of many factors, so single use of a certain anti-aging agent cannot well meet the protection requirements of the product. Therefore, generally two or more anti-aging agents are used to exert their protective effect.

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Abstract

The invention relates to the technical field of preparation of anti-aging rubber, in particular to a preparation method of the anti-aging rubber which is high in corrosion resistance, resistant to strong acid and strong alkali and not prone to substitution reaction. The method comprises the following processing steps: S1, placing raw rubber in a plasticator, mechanically extruding and rubbing the raw rubber through the plasticator, under the action of mechanical extrusion and friction force, degrading and shortening long-chain rubber molecules, and converting a high-elasticity state into a plastic state; S2, putting the plasticated raw rubber obtained in the step 1 and other compounding agents into a rubber mixing mill for mechanical mixing, and performing mixing to obtain a rubber material, namely mixed rubber; S3, filling the rubber compound into a vulcanizing tank, then introducing a vulcanizing agent, performing heating at 160-200 DEG C, and carrying out heat preservation, so linear molecules of the raw rubber are cross-linked to form a three-dimensional net-shaped structure by generating sulfur bridges, and the plastic rubber material is changed into high-elasticity vulcanized rubber.

Description

technical field [0001] The invention relates to the technical field of aging-resistant rubber preparation, in particular to a preparation method of aging-resistant rubber. Background technique [0002] The rubber industry is one of the important basic industries of the national economy. It not only provides daily and medical light industrial rubber products that are indispensable for people’s daily life, but also provides various rubber production equipment or rubber parts for mining, transportation, construction, machinery, electronics and other heavy industries and emerging industries. It can be seen that the rubber industry has a wide variety of products, and the backward industry is very broad. In recent years, the rubber industry has developed a lot. The existing sub-sectors have grown steadily, while the new rubber sub-sectors have developed rapidly. However, at the same time, the rubber industry still has problems such as the environment, resources, disasters, and in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/04C08J3/24C08L21/00C08L23/06C08L75/04C08K7/26C08K3/16C08K3/26C08K3/22C08K3/36C08K3/06
CPCC08J9/04C08J3/24C08J2321/00C08J2423/06C08J2475/04C08K7/26C08K2003/162C08K2003/265C08K2003/2241C08K3/36C08K3/06
Inventor 周英龙高林春
Owner 上海瑞邦实业有限公司
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