Polymer(Korea), Vol.41, No.4, 592-598, July, 2017
대나무 섬유(BF) 실란처리가 폴리프로필렌(PP)/에틸렌-옥텐 고무/BF 복합체의 물성에 미치는 영향
Effects of Silane Modification of Bamboo Fiber (BF) on the Physical Properties of PP/Ethylene-Octene Rubber/BF Composites
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초록
폴리프로필렌(polypropylene, PP)/에틸렌-옥텐 고무(EOR)/대나무 섬유(bamboo fiber, BF) 복합체의 물성에 미치는 BF 화학처리의 영향을 고찰하기 위해, BF에 NaOH 수용액 처리와 실란 커플링제를 처리하였다. NaOH 수용액의 농도는 3 wt%로 고정하였고, 실란 커플링제인 triethoxyvinylsilane의 농도는 1-5 wt%로 변화를 주어 화학처리된 BF를 제조하였다. BF 화학처리에 따른 섬유의 화학구조는 FTIR과 EDS를 통해 확인하였으며, 실란처리 시 BF의 열안정성이 증가함을 TGA를 통해 확인하였다. PP/EOR/BF 복합체의 충격특성은 알카리 처리와 실란처리가 동시에 진행된 BF에 대해서 가장 우수한 결과를 나타내었으며, PP/EOR/BF 복합체의 계면접착특성은 인장시험 후 파단면의 SEM 사진과 접촉각을 통해 확인하였다. 복소점도는 동적유변측정기를 이용하여 측정하였다.
In order to analyze the effects of chemical treatment of bamboo fiber (BF) on the physical properties of the polypropylene (PP)/ethylene-octene rubber (EOR)/BF composites, BF was treated by NaOH water solution and silane coupling agent. The chemically treated BFs were fabricated at 3 wt% of NaOH concentration and in the range of 1-5 wt% of triethoxyvinylsilane. The chemical structures of the treated BFs were confirmed by FTIR and EDS results. Thermal stability enhancing of the silane treated BF was confirmed by TGA thermograms. PP/EOR/BF composites had the best impact property when BF was treated with both alkali and silane. The interface adhesion properties of the PP/EOR/BF composites were checked by SEM images of the fractured surface after the tension test and contact angles. The complex viscosities of the PP/EOR/BF composites were measured by oscillatory rheometer.
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