Division of Environmental Science and Engineering postech 선택과 집중, 소수정예교육 통해 환경분야
세계 10위권 대학원으로 발전한 포항공과대학교입니다.

   >   게시판    >    DESE 뉴스   
   >   게시판    >    DESE 뉴스   

DESE 뉴스

제목 Biodegradable chito-beads replacing non-biodegradable microplastics for cosmetics(주성빈 박사과정)
작성자 관리자
첨부파일 게껍질 추출물 활용_주성빈 박사.png / 808.64KB / 5회 다운
방문수 39

The global ban on plastic microbeads for personal care products has forced researchers to find sustainable alternatives. However, current biodegradable microbeads rarely offer competitive qualities such as those related to the mechanical properties, stability, and toxicity of their degraded products. Herein, we synthesized ‘chito-beads’, which can satisfy the aforementioned requirements, and evaluated their practical usage, biodegradability, and phytotoxicity. Chito-beads were made into uniform spherical microbeads with a diameter of 280 μm through the reacetylation of chitosan – a renewable polymer from crustacean waste via an inverse emulsion system. Chito-beads exhibit a higher cleansing efficiency than conventional polyethylene microbeads, with a hardness of 128 MPa. Furthermore, they can be used to remove potentially toxic elements and are stable and functional in commercial cleansing. The used chito-beads were fully degraded in soils without any toxicity to the model plants. Our alternative can be used as competitive and environmentally friendly microparticles in sustainable daily necessities.


출처: https://pubs.rsc.org/en/content/articlelanding/2021/GC/D1GC01588E