Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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A Study on the Manufacturing and Properties of High Density Polyethylene Composites Filled with Waste Gypsum

부산 석고를 충전한 고밀도폴리에틸렌 복합재료 제조 및 물성 연구

  • Jin, Woo Seok (Department of Materials Engineering and Convergence Technology, RECAPT, Gyeongsang National University) ;
  • Moon, Junho (Department of Materials Engineering and Convergence Technology, RECAPT, Gyeongsang National University) ;
  • Kong, Tae Woong (Space-Aeronautics & Advanced Non-Metal Material Center, Jeonnam Technopark) ;
  • Kim, Hyang Tae (Epolytech Co., Ltd) ;
  • Choi, Sang Hwan (Epolytech Co., Ltd) ;
  • Oh, Jeong Seok (Department of Materials Engineering and Convergence Technology, RECAPT, Gyeongsang National University)
  • 진우석 (경상국립대학교 나노신소재융합공학과 항공기부품기술연구센터) ;
  • 문준호 (경상국립대학교 나노신소재융합공학과 항공기부품기술연구센터) ;
  • 공태웅 (전남테크노파크 우주항공 첨단소재센터) ;
  • 김향태 (이폴리텍(주)) ;
  • 최상환 (이폴리텍(주)) ;
  • 오정석 (경상국립대학교 나노신소재융합공학과 항공기부품기술연구센터)
  • Received : 2021.08.20
  • Accepted : 2021.09.21
  • Published : 2021.09.30
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Abstract

Recently, research using waste among eco-friendly materials has been attracting attention. In this study, we investigated the physical properties of blends in which high density polyethylene (HDPE) was filled with waste gypsum (CaSO4) generated during fertilizer manufacturing. Composites were prepared by adding the gypsum content 0~20 wt% using a twin screw extruder. The mechanical, rheological, and thermal properties of the composites were evaluated. It was found that the tensile strength of the composites was less than 4.1% compared to that of unfilled HDPE, so there is no significant deterioration in physical properties. The thermal stability of the composites was improved as the gypsum content increased and the gypsum content had little effect on the viscosities of the composites.

최근 친환경 소재, 특히 부산물을 활용한 연구가 주목을 받고 있다. 본 연구에서는 비료 제조 시 발생하는 공정 부산물인 석고(CaSO4)를 고밀도 폴리에틸렌(High density polyethylene, HDPE)에 충전한 복합재료의 물성을 조사하였다. Co-rotating twin screw extruder를 이용하여 석고의 함량을 0~20 wt% 충전하여 복합재료를 제조하고 이의 기계적, 유변학적, 열적 특성을 평가하였다. 그 결과 인장강도는 미충전 HDPE 대비 4.1% 이하로 물성 저하가 크지 않다. 석고의 함량이 증가할수록 열적 안정성이 향상되었고 석고의 함량이 복합재료의 점도 특성에 거의 영향을 끼치지 않는 것을 확인하였다.

Keywords

Acknowledgement

본 연구는 재단법인전남테크노파크의 지역수요맞춤형 연구개발사업의 지원에 의해 연구되었으며 이에 감사드립니다.

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