Natural rubber composites reinforced by sugarcane bagasse fiber: effect of silane modification

Name: Chawalit Poonpipat

Organization : Chulalongkorn University. Faculty of Science

Name: Chesidi Hayichelaeh

Organization : Chulalongkorn University. Faculty of Science

Name: Kanoktip Boonkerd

Organization : Chulalongkorn University. Faculty of Science

Email : k.boonkerd@gmail.com

LCSH: Bagasse

LCSH: Rubber -- Reinforcement

LCSH: Fillers (Materials)

LCSH: Silane

Abstract: A reinforcing filler is primarily required in rubber to extend its product performance. Recently, cellulose fiber (CF) obtained from natural-based resources has earned much attention as a reinforcing filler in rubber composites. This is because CF gives not just environmentally friendly and green products but also enhances the value of agricultural waste. However, the obtained CF consists of hydroxyl groups, thus giving the surface with high polarity and causing the incompatibility with the non-polar rubber such as natural rubber (NR). Therefore, the use of CF for reinforcing the rubber still does not achieve the goal. This work aims to improve the interfacial compatibility between CF derived from sugarcane bagasse and NR matrix. The CF surface was first modified with a silane coupling agent, bis[3- (triethoxysilyl)propyl] tetrasulfide (TESPT). Two-step processes, including the preparation of CF/NR masterbatch and then preparation of rubber compound using a melt mixing, were used to ensure the better dispersion of filler. The effect of silane-modified CF on properties of NR composites was investigated in which the loading levels of CF were varied at 1, 2, and 3 phr. At the same loading level of CF, the modulus at 100% strain of rubber composites gave no significant change. However, silane-modified CF showed higher tensile strength, elongation at break, and tear strength than the unmodified one. Results implied that the fiber-surface modification by silane could improve the interfacial compatibility between the fiber surface and the rubber matrix

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Modified: 2022-11-24

Issued: 2022-11-24

BibliograpyCitation : In King Mongkut's Institute of Technology Ladkrabang. Pure and Applied Chemistry International Conference (PACCON 2022) (pp.891-896). Bangkok : King Mongkut's Institute of Technology Ladkrabang

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