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Influence of Silica and Couple Agent on the Property of CR/TPI Blends

Huang Bao-chen

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Abstract

The effect of silica and couple agent on the properties of chloroprene rubber(CR)/trans-1,4-polyisoprene(TPI) compounds and vulcanizates are studied.The results show that with the increase of the amount of silica,the scorching time and optimum cure time of CR/TPI compounds are shortened.The physical mechanical properties of CR/TPI vulcanization are strengthened, but the heat aging properties are depressed lightly at the same time.The properties of CR/TPI blends are improved with a little amount of couple agent silica, but it is depressed by adding much more amount of couple agent silica.When the mass ratio of Si-69 and silica is 1∶12,the CR/TPI vulcanization has the best properties.

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What this paper is about

The effect of silica and couple agent on the properties of chloroprene rubber(CR)/trans-1,4-polyisoprene(TPI) compounds and vulcanizates are studied.The results show that with the increase of the amount of silica,the scorching time and optimum cure time of CR/TPI compounds are shortened.The physical mechanical properties of CR/TPI vulcanization are strengthened, but the heat aging properties are depressed lightly at the same time.The properties of CR/TPI blends are improved with a little amount of couple agent silica, but it is depressed by adding much more amount of couple agent silica.When the mass ratio of Si-69 and silica is 1∶12,the CR/TPI vulcanization has the best properties.

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Available abstract

The effect of silica and couple agent on the properties of chloroprene rubber(CR)/trans-1,4-polyisoprene(TPI) compounds and vulcanizates are studied.The results show that with the increase of the amount of silica,the scorching time and optimum cure time of CR/TPI compounds are shortened.The physical mechanical properties of CR/TPI vulcanization are strengthened, but the heat aging properties are depressed lightly at the same time.The properties of CR/TPI blends are improved with a little amount of couple agent silica, but it is depressed by adding much more amount of couple agent silica.When the mass ratio of Si-69 and silica is 1∶12,the CR/TPI vulcanization has the best properties.

Key concepts: Vulcanization, Chloroprene, Materials science, Natural rubber, Chemical engineering, Stabilizer (aeronautics), Fumed silica, Composite material

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