预辐射聚丙烯纤维接枝苯乙烯和丙烯酸的研究
Grafting copolymerization of styrene and acrylic acid onto polypropylene fabric had been studied by using a pre-irradiation technique. The polypropylene fabric samples were irradiated by γ -ray and electron beam under the conditions of air and nitrogen gas, respectively. The effect of absorbed dose,...
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| Published in | 上海大学学报(英文版) Vol. 4; no. z1; pp. 173 - 77 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
Department of Chemical Engineering and Technology, Shanghai University,%Radiation Processing Project, Korea Atomic Energy Research Institute
2001
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| Online Access | Get full text |
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| Summary: | Grafting copolymerization of styrene and acrylic acid onto polypropylene fabric had been studied by using a
pre-irradiation technique. The polypropylene fabric samples were irradiated by γ -ray and electron beam under the conditions of air
and nitrogen gas, respectively. The effect of absorbed dose, monomer concentration in solvent, reaction temperature and reaction time
on the degree of grafting were determined. The effects of metallic salts and sulphuric acid on the grafting yield of acrylic acid were
also examined. The samples irradiated by electron beam give a much higher degree of grafting than those by γ -ray when styrene was
grafted to polypropylene fabric. However, the grafting yield of acrylic acid on polypropylene fabric in the presence of metallic salts
and sulfuric acid showed the opposite results from the case of styrene. This effect is reasonably interpreted by assuming that the
grafting is dominated by trapped radicals and peroxides in pre-irradiated polypropylene. |
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| ISSN: | 1007-6417 |