Grafting of n-butyl acrylate with natural rubber latex film by gamma radiation: a reaction mechanism

Daffodil International University Journal of Science and Technology

AM Sarwaruddin Chowdhury¹  KMZ Hossain² 

[1] Department of Applied Chemistry and Chemical Technology, Faculty of Engineering and Technology, University of Dhaka, Dhaka;Faculty of Science and Information Technology, Daffodil International University, Dhaka

关键词: Natural rubber latex;    n-butyl acrylate;    Irradiation;    Swelling ratio;    Cross-link;    Reaction mechanism;   

DOI  :  10.3329/diujst.v5i1.4386

学科分类：自然科学（综合）

来源: Daffodil International University

【 摘 要 】

Natural rubber latex (NRL) and n-butyl acrylate (n-BA) were blended and irradiated at various absorbed doses by gamma rays from Co-60 source at room temperature. The stabilizing effect was determined by measuring the pH and viscosity of NRL with n-BA with the storage time of five weeks. The cross-link density, swelling ratio of the radiation vulcanized rubber film were measured. The cross-link density of the n-BA grafted NRL film was found increasing and the swelling ratio of that film decreasing with the increased absorbed dose. The optimum radiation dose for better cross-linking of natural rubber latex blended with five parts per hundred rubber (phr) n-BA was found 15 kGy absorbed dose. Based on the cross-linking properties a probable cross-linking reaction mechanism for the n-BA grafted natural rubber latex film was developed.Keywords:Natural rubber latex, n-butyl acrylate, Irradiation, Swelling ratio, Cross-link, Reaction mechanism. DOI: 10.3329/diujst.v5i1.4386Daffodil International University Journal of Science and TechnologyVol.5(1) 2010 pp.81-88

【 授权许可】

CC BY