Palm oil fatty acid as an activator in carbon black filled natural rubber compounds: effect of vulcanization system
✍ Scribed by Ismail, Hanafi; Salmiah, I.; Tsukahara, Y.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 483 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0959-8103
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✦ Synopsis
Carbon black Ðlled natural rubber compounds were cured using conventional vulcanization (CV) and semi-efficient vulcanization (semi-EV) systems. The e †ect of palm oil fatty acid on cure characteristics and mechanical properties was examined. It was found that the cure time and scorch time increased t 90 , with increasing palm oil fatty acid concentration in both systems. At Ðxed acid concentration, semi-EV compounds show shorter and scorch time than CV t 90 compounds. Results from tensile modulus, hardness, maximum torque [ minimum torque and swelling measurements indicate that palm oil fatty M HR [ M L , acid has some e †ect on crosslink density. At Ðxed palm oil fatty acid concentration, CV compounds have better mechanical properties (tensile modulus, hardness, tear and tensile strengths) compared with semi-EV compounds.