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《Material Science and Technology》 2002-04
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Effect of processing parameters on grafting degree using UV techniques to graft MAH onto polypropylene powder

ZHANG Zhiqian1, WANG Zhuo1, JIN Zheng1, XUE Yanmin1, ZHANG Xiubin2, QIU Jun2(1. Department of Applied Chemistry,Harbin Institute of Technology, Harbin 150001, China;2. Department of Applied Chemistry, Shenyang Institute of Chemical Technology , Shenyang 110021, China)  
The surface of polypropylene (PP) is inert and so is difficult to make conglutination with reinforcing fibers. In this paper the effect of MAH content, reaction temperature, illumination time and agitating velocity on grafting degree are systematicialy studied in which maleic anhydride (MAH) is grafted on to the surface of PP powder by means of photoinitiated solid phase grafting reaction with the agent of acetone in the high pressure kettle. It is shown that in the processing of MAH grafting reaction the highest value of grafting degree can be obtained when content of MAH is 2.5%, reaction temperature is 30 ℃ and illumination time is 3 min. It was also found that the agitating velocity has obvious effects on the scattering of grafting data.
【Fund】: 国家自然科学基金资助项目(59973006)
【CateGory Index】: TB332
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