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Preparation of solvent-based eco-friendly stone paper

용제기반 친환경 stone paper의 제조

  • Seok Ju Jeong (Department of Ocean Advanced Materials Convergence Engineering, Korea Maritime and Ocean University) ;
  • Do Yoon Kam (Frienderma Cosmetic Co., Ltd.) ;
  • Eun Ok Choi (Frienderma Cosmetic Co., Ltd.) ;
  • Hyun Cho (Department of Nanomechatronics Engineering, Pusan National University) ;
  • Byeong Woo Lee (Department of Ocean Advanced Materials Convergence Engineering, Korea Maritime and Ocean University)
  • 정석주 (한국해양대학교 해양신소재융합공학과) ;
  • 감도윤 (프랜더마 코스메틱(주)) ;
  • 최은옥 (프랜더마 코스메틱(주)) ;
  • 조현 (부산대학교 나노메카트로닉스공학과) ;
  • 이병우 (한국해양대학교 해양신소재융합공학과)
  • Received : 2023.07.21
  • Accepted : 2023.08.22
  • Published : 2023.08.31

Abstract

Stone papers made of inorganic filler and plastic polymer do not use pulp, which is the main raw material of existing papers, so they contribute to the preservation of nature and can be used as more eco-friendly materials when they have biodegradability. Since most stone papers are manufactured by hot extrusion, the amount of ceramic fillers and related physical properties are limited to control manufacturing workability. In this study, the stone paper composition was prepared in a liquid form using solvents, so that there was little limitation on the amount of ceramic filler added and it was also easy to add additives to control biodegradability. They were fabricated from eco-friendly raw materials using waste oyster shells as an inorganic filler and (recyclable) PVC materials as an organic binder. After making a solution using common solvents for PVC, inorganic filler and cellulose to impart biodegradability were mixed and processed into sheets to prepare solvent-based stone papers, and their paper properties were evaluated.

무기충진제와 가소성 폴리머로 이루어진 스톤페이퍼는 기존 종이의 원료인 펄프를 사용하지 않아 자연보존에 기여하고 생분해성을 가지게 되면 보다 친환경적인 소재로 사용이 가능하다. 현재 대부분의 스톤페이퍼는 가열압출성형법으로 제조하고 있어 작업성을 증진시키기 위해 세라믹 충진제의 양이 제한되어 다양한 물성을 가질 수 없다. 본 연구에서는 이러한 스톤페이퍼 조성을 용제를 사용한 액상으로 제조하게 됨으로써 세라믹 충진제 첨가량에 제한이 적고 생분해성 조절을 위한 첨가제 투입도 용이하였다. 폐패각인 굴껍질을 열처리하여 무기충진제로 사용하였고, 재활용 소재로도 쉽게 구할 수 있는 폴리비닐클로라이드를 유기결합제로 사용하였다. 일반적인 폴리비닐클로라이드용 유기용제를 사용하여 폴리비닐클로라이드를 용해시킨 후 무기충진제와 생분해성을 부여하기 위한 셀룰로스를 혼합하여 시트 형태로 가공하여 용제기반 스톤페이퍼를 제조하여 그 물성에 대해 분석하였다.

Keywords

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