리싸이클 PET 부직포의 실리카졸과 실란 커플링제를 이용한 발수성 부여 연구
60권 1호, pp. 35-41,
2월 2023
10.12772/TSE.2023.60.035
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요약
In this study, silica sol and silane coupling agent hexadecyl trimethoxysilane
(HDTMS) were used to improve the surface roughness of the recycled PET nonwoven fabrics
to impart water repellency of the nonwoven fabrics. The effects of silica sol and silane
coupling agent treatment on the surface morphology, chemical structure, surface roughness
and water repellency of the recycled PET nonwoven fabrics were examined. As results
of SEM observation, the silica particles showed a uniform distribution on the surface at low
concentration of silane coupling agent, and with an increase of concentration of silane
coupling agent, more agglomeration of the particles occurred. FT-IR results showed the
specific peaks at 3,000, 1,000 and 791 cm-1 due to the axial deformation of Si-OH, Si-O-Si
and Si-C bond, respectively. Surface roughness of recycled PET nonwoven fabrics increased
by treatment with silica sol and silane coupling agent. It is thought to be because silica
nano particles generated the micro irregularities on the surface. The water contact angle
was greatly increased to 130o at 0.5% of silane coupling agent. It is thought to be due to
reduction of surface free energy of the nonwoven fabrics by treatment with silica sol and
silane coupling agent. It was confirmed that silica sol and silane coupling agent treatment
is an eco-friendly surface modification method that can improve water repellency of nonwoven
fabrics efficiently.
통계
2022년 11월부터 누적 집계
동일한 세션일 때 여러 번 접속해도 한 번만 카운트됩니다. 그래프 위에 마우스를 올리면 자세한 수치를 확인하실 수 있습니다.
