Publication: Properties of natural rubber filled with ultra fine acrylate rubber powder
Issued Date
2010-03-01
Resource Type
ISSN
15308006
00952443
00952443
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2-s2.0-78751518339
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Elastomers and Plastics. Vol.42, No.2 (2010), 139-150
Suggested Citation
Pongdhorn Sae-Oui, Chakrit Sirisinha, Kannika Hatthapanit Properties of natural rubber filled with ultra fine acrylate rubber powder. Journal of Elastomers and Plastics. Vol.42, No.2 (2010), 139-150. doi:10.1177/0095244310362733 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/29308
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Title
Properties of natural rubber filled with ultra fine acrylate rubber powder
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Abstract
Properties of natural rubber (NR) filled with various loadings of ultra-fine vulcanized acrylate rubber powder (ACMP) were investigated. ACMP loading was varied from 0 to 20 phr and, after compounding, the compound properties were determined. Results reveal that increasing ACMP loading leads to improved processability, as evidenced by the reduction of both mixing energy and Mooney viscosity. ACMP, however, has negative effect on cure, that is, both scorch time and optimum cure time are prolonged while the state of cure is reduced with increasing ACMP loading. Due to the reinforcing effect of the fine ACMP particles, both modulus and hardness are found to increase consecutively with increasing ACMP loading. The tensile strength is also found to improve with increasing ACMP loading up to 10 phr. However, due to the cure retardation effect and the high thermoplastic nature, the presence of ACMP causes deterioration of elasticity. As ACMP is highly polar and fully saturated, the addition of ACMP enhances the resistance to oil and thermal aging of the NR vulcanizate. Significant improvement of thermal aging resistance is found when 10 phr or more of ACMP is added. © The Author(s), 2010.