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Zhongshan, China

Wei X.,South China University of Technology | Fu H.,South China University of Technology | Lai W.,Zhongshan Yongda Co. | Zou W.,Zhongshan Yongda Co. | And 2 more authors.
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering

A high adhesion strength and excellent temperature resistance pressure-sensitive adhesive (PSA) was prepared using acrylate as raw materials by modified polymerization process. The effects of polymerization process, the contents of acrylic acid (AA) and the mass ratio of butyl acrylate (BA) to 2-ethylhexy acrylate (2-EHA), and kinds of curing agents and their contents on the adhesion properties of PSA were studied. The experimental results show that, the polymerization conditions, including the concentration of monomer, the charging method of materials, the reaction temperature and the reaction time, have a great effect on adhesion properties of PSA. When the mass fraction of acrylic acid (AA) is 3%, the mass ratio of BA to 2-EHA is 2, using the polymer isocyanate GH (the mass fraction of which is 0.8%) as the curing agent, PSAs synthesized through the modified polymerization process have best adhesive performances and high temperature resistance. Source

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