Production of rubber joint commonly used additives

2018-02-08 13:34:00
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Summary :What are the commonly used additive for rubber flanged expansion bellows? Today we tell you the eight major additive for rubber expansion bellows.

Rubber is the main material of rubber bellows expansion joint, when we prepare rubber material, additive is used to strength the performance of rubber flanged expansion bellows. What are the commonly used additive for rubber flanged expansion bellows? Today we tell you the eight major additive for rubber expansion bellows.

rubber expansion bellows

rubber flanged expansion bellows

Rubber joint is commonly used in eight additives

Rubber vulcanizing agent: in the production process of rubber expansion bellows, add with sulfur to prevent vulcanization revert, and improve heat resistance, enhance the adhesive force of rubber and cord fabric.

Rubber accelerators: rubber accelerators is used to promote vulcanization function, it can shorten vulcanizing time of rubber flanged expansion bellows or lower vulcanizing temperature, also enhance the physical and mechanical property of rubber flanged expansion bellows.

Rubber antioxidant: there are many types of antioxidant for the rubber expansion bellows. It includes heat oxygen aging resist antioxidant, ozone aging resistant antioxidant, fatigue resistant antioxidant, etc.

Rubber filler: no matter natural rubber or synthetic rubber, most rubber flange expansion bellows contains 10-50% filler of total weight. According to different elongation, hardness tensile strength, permanent deformation, tear strength, add different addition quantity to improve the performance of rubber flanged expansion bellows.

Rubber paste agent: excellent elasticity, convenient to use, strong viscous force at first time.

Rubber softener: it is used to improve the processing and using property of rubber expansion bellows, it can promote the plasticity of rubber material and reduce rubber viscosity and mixing temperature.

Rubber colorant: the purpose is help rubber flanged expansion bellows obtain required color and lustre, and carbon black often be added into the rubber material to get mechanical property.

Rubber active agent: active vulcanization system, promote vulcanized rubber’s cross linking density, improve aging resistant performance.

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