Polymer(Korea), Vol.21, No.3, 426-437, May, 1997
화학적 에칭법을 이용한 Polyolefin의 미세구조 관찰
A Studys of Microstructure Investigation of Polyolefin by Chemical Etching Method
초록
과망간산 에칭법을 도입하여 polyolefin의 미세구조 관찰에 적합한 화학적 에칭기술을 확립하였다. 실험은 etchant의 농도와 에칭시간을 변화시키면서 수행하였으며, 연구결과 etchant 조성은 7 wt% KMnO4/H3PO4, 에칭시간은 상온에서 polyolefin의 형상과 종류에 따라 30-60분이 적당함을 알 수 있었다. 에칭된 시료의 세척방법은 증류수에서 1차 세척하고 과산화수소수 (H2O2)에 1-2분간 담근 후 acetone 용액 하에서 30분간 초음파 세척하는 것이다. 본 연구를 통하여 확립된 에칭방법으로 관찰한 표면, 단면의 morphology는 높은 재연성을 주어 polyolefin미세구조의 분포 및 평상 연구에 적합함을 알 수 있었다.
Permanganate chemical etching technique which is suitable for the investigation of paryolefin microstructure was developed. In this study etchant concentration and etching time were used as experimental variables. New chemical etching conditions are as follows; etchant formulation is 7 wt% KMnO4/H3PO4, and etching time for various types and shapes of polyolefin are from 30 to 60 minute at room temperature. Washing procedures for etched sample are washing by distilled water, hydrogen peroxide and finally 30 minute acetone sonication. The observed morphology, both surface and cross-section, with this new technique have good reproducibility.
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