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Scanning Electron Microscopic Study on the Microplastics in Rinse Off Cosmetics

피부 청결 화장품에 첨가된 미세플라스틱의 주사전자현미경적 연구

  • 김경숙 (건양사이버대학교 글로벌뷰티학과) ;
  • 장병수 (한서대학교 피부미용화장품과학과)
  • Received : 2019.08.01
  • Accepted : 2019.09.20
  • Published : 2019.09.27

Abstract

We investigated the microstructure and morphological characteristics of microplastics added to rinse off cosmetics by scanning electron microscope. The size of the microplastic was in a wide range of sizes, from $250{\mu}m$ to 1.5mm in diameter. The small microplastics were in the shape of elongated particles and the large microplastics were cuboidal. Most cubic microplastics were observed in the form of squares or rectangles. The surface of the cubic microplastic was smoothly observed without protruding portions, but irregularly many gaps were formed. The gap between openings was measured from about $5{\mu}m$ to $20{\mu}m$. It has not been confirmed that these gaps are formed from the surface of the microplastic to the inside there of.

본 연구는 피부청결 화장품에 첨가된 미세플라스틱의 미세구조와 형태적 특성을 주사전자현미경(scanning electron microscope)으로 관찰 분석하였다. 미세플라스틱의 크기는 직경이 $250{\mu}m$에서부터 1.5mm까지 아주 다양한 크기로 존재하였다. 비교적 작은 미세플라스틱은 길쭉한 입자 모양을 하고 있었고 커다란 미세플라스틱은 입방형의 형태를 하고 있었다. 입방형의 미세플라스틱은 대부분 정사면체나 직사면체의 형태로 관찰되었다. 입방형 미세플라스틱의 표면은 돌출된 부위 없이 매끄럽게 관찰되었지만 불규칙하게 많은 틈이 형성되어 있었다. 벌어진 틈의 간격은 약 $5{\mu}m$에서부터 $20{\mu}m$ 까지 측정되었다. 이들 틈은 미세플라스틱의 표면에서부터 내부 까지 형성되어 있는지는 확인되지 않았다.

Keywords

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