전자빔 가속기를 이용한 폴리프로필렌 섬유의 개질(I)- 전자빔 조사에 따른 폴리프로필렌 섬유의 물리적, 열적 특성변화 -
Electron Beam -Induced Graft Polymerization of Acrylic Aicd on Polypropylene Nonwoven Fabrics(I)-
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Abstract
Before studying graft polymerization of PP(polypropylene) nonwoven fabrics by electron beam preirradiation method, mechanical properties, thermal properties and degree of crystallinity of original and electron beam irradiated PP nonwoven fabrics were investigated.Morphological surface changes of electron beam irradiated PP nonwoven fabrics were not observed. And the melting temperature and crystallinity of electron beam irradiated PP nonwoven fabrics also did not change as compared with untreated PP nonwoven fabrics. But the breaking strength of electron beam irradiated PP nonwoven fabrics decreased with increasing electron beam absorbed dose due to breakdown of some parts of polymer main chain.