전자선 조사된 폴리프로필렌 부직포의 그라프트에 있어보관조건이 미치는 영향
Effect of Storage Conditions on Graft of Polypropylene Non-woven Fabric Induced by Electron Beam
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초록
In this study, we fabricated effect of storage conditions on graft of polypropylene (PP)non-woven fabric induced by electron beam. The electron beam irradiations on PP non-wovenfabric were carried out over a range of irradiation doses from 25 to 100 kGy to make free radicalson fabric surface. The radical measurement was established by electron spin resonance (ESR) forconfirming the changes of the alkyl radical and peroxy radical according to effect of storage time,storage temperature and atmosphere. It was observed that the free radicals were increased withirradiation dose and decreased with storage time due to the continuous oxidation. However, theradical extinction was significantly delayed due to reduced mobility of radicals at extremely lowtemperature. The degree of graft based on the analysis of ESR was investigated. The conditionsof graft reaction were set at a temperature: 60°C, reaction time: 6 hours and styrene monomerconcentration: 20 wt%.1
Abstract
In this study, we fabricated effect of storage conditions on graft of polypropylene (PP)non-woven fabric induced by electron beam. The electron beam irradiations on PP non-wovenfabric were carried out over a range of irradiation doses from 25 to 100 kGy to make free radicalson fabric surface. The radical measurement was established by electron spin resonance (ESR) forconfirming the changes of the alkyl radical and peroxy radical according to effect of storage time,storage temperature and atmosphere. It was observed that the free radicals were increased withirradiation dose and decreased with storage time due to the continuous oxidation. However, theradical extinction was significantly delayed due to reduced mobility of radicals at extremely lowtemperature. The degree of graft based on the analysis of ESR was investigated. The conditionsof graft reaction were set at a temperature: 60°C, reaction time: 6 hours and styrene monomerconcentration: 20 wt%.
참고문헌 (10)
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