IMPROVEMENT OF HARDNESS AND OIL RESISTANCE BY USING GRAFTING REACTION OF STYRENE ONTO DEPROTEINIZIED NATURAL RUBBER
Trần Anh Dũng
Nguyễn Thị Nhàn
Nguyễn Huy Tùng
Trần Hải Ninh
Vũ Anh Tuấn
Phan Trung Nghĩa
Trần Thị Thúy
Kawahara Seiichi
Abstract
Styrene - deproteinized natural rubber (DPNR) grafting copolymerization using emulsionpolymerization with tetraethylenepentamine (TEPA) - tert-butyl hydroperoxide (TBHPO) as aredox initiator was successful. Study on hardness and oil resistance of grafted styrenedeproteinized natural rubber, we found that hardness and oil resistance of rubber increasedepending on monomer concentration. With monomer concentration is 23.4 g/100g rubber, itsoil resistance increases 30%; and with 24.3g monomer/ 100g rubber, its hardness increases70% comparison with DPNR.
