Effect of Vulcanization Processes on Properties of Natural Rubber/Cellulose Composites

Yanika Poonpipat; Tanabadee Boonmalert; Paweena Prapainainar; Peerapan Dittanet

doi:10.4028/www.scientific.net/KEM.902.95

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 902Effect of Vulcanization Processes on Properties of...

Effect of Vulcanization Processes on Properties of Natural Rubber/Cellulose Composites

Abstract:

The effect of vulcanization processes and surface treatment of cellulose were investigated on tensile strength, degradation temperature, and morphological properties of cellulose/natural rubber composites. Cellulose was surface-treated with Si-69 silane coupling agent and used as reinforcing filler in natural rubber (NR). Different vulcanization processes including electron beam irradiation (EB-Cured) and sulphur vulcanization (S-Cured) were used to crosslink NR. The incorporation of both untreated and treated cellulose at various concentrations (5, 10, 15 and 20 phr) into NR was found to significantly improve the tensile strength and modulus. Notably, with addition of treated cellulose in NR, the tensile strength and modulus were considerably higher than that of the untreated cellulose for all curing system. SEM morphological analysis revealed a well dispersion of cellulose particles in NR matrix. Addition of cellulose slightly decreased the onset of degradation temperature of NR, however, the degradable temperature was found to be unchanged. The curing systems had shown an impact on tensile property of NR. S-Cured NR exhibited highest modulus of 2.23 MPa comparing to the EB-Cured NR (1.69 MPa) for the same amount of cellulose (20 phr), due to a stronger crosslink network. However, the curing system had no significant impact on degradation temperature of NR.

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Periodical:

Key Engineering Materials (Volume 902)

Pages:

95-100

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.902.95

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Online since:

October 2021

Authors:

Yanika Poonpipat, Tanabadee Boonmalert, Paweena Prapainainar, Peerapan Dittanet*

Keywords:

Cellulose, Electron Beam Vulcanization, Natural Rubber, Sulphur Vulcanization

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