Study on Modified Nano-SiO<,2> Reinforce Butyl Rubber
Nano-silica is treated with Vinyl-silane A-151, which has a good hydrophobic is introduced in this paper. The surface status of nano-silica before and after modification was studied. The analysis of FTIR and XPS proved that the A-151 has been successfully grafted on the surface of nano-silica. The effects of modified nano-silica on the filler- butyl rubber interaction and physical properties of vulcanization butyl rubber were studied. By the measurement of bound rubber in the atmosphere and ammonia, the types of rubber-filler interaction were analyzed. It was shown that with the content increase of modified nano-silica in the butyl rubber, the portions of covalent bond interaction increase, the portion of Vanders interaction increase. Application experiment shows that the tensile strength of the modified nano- silica-filled vulcanization butyl rubber is 8.22MPa when the content is 1.0％, elongations of vulcanization butyl rubber is 823.15％. When the content is higher than 3.5％, the tensile strength increas es and reaches 9.28MPa. This is due to the fact that inorganic particles have high modulus and tensile strength. After being grafted with appropriate organic polymers, the particles present good compatibility with the butyl rubber through the polymer. At the interface of the grafting polymer and the butyl rubber, a thick gradient layer can be formed for the rigid particles to pass their tensile strength and modulus to the butyl rubber. Thus, the mechanics properties of vulcanization butyl rubber can be improved.
Modified nano-SiO<,2> reinforce butyl rubber
Delian Yi Xiaorong Qin Zhaohui Ou Yang Yan Wang Lin Wu
Hubei Province Key Laboratory of Ceramics & Refractories, Wuhan University of Science & Technology, China Applied Chemistry Research Institute, Wuhan University of Science & Technology, China
国际会议
2006现代科技国际研讨会(The International Workshop on Modern Science and Technology in 2006)
北京
英文
125-129
2006-04-01（万方平台首次上网日期，不代表论文的发表时间）