한국안광학회지 (Journal of Korean Ophthalmic Optics Society)

한국안광학회 (The Korean Ophthalmic Optics Society)
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친환경 셀룰로오스 아세테이트 판재의 안경테 가공 공정별 물성 특성 연구

Influence of a Glasses Frame Processing on the Properties of Eco-friendly Cellulose Acetate Sheet

  • 이해성 (대구경북과학기술원 나노바이오연구부) ;
  • 이성준 (대구경북과학기술원 나노바이오연구부) ;
  • 정상원 (대구경북과학기술원 나노바이오연구부) ;
  • 김현철 (대구경북과학기술원 나노바이오연구부) ;
  • 고영준 ((재)한국안경산업지원센터 기획팀) ;
  • 박대진 ((재)한국안경산업지원센터 기획팀) ;
  • 이세근 (대구경북과학기술원 나노바이오연구부)
  • Lee, Hae Sung (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology) ;
  • Lee, Sung Jun (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology) ;
  • Jung, Sang Won (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology) ;
  • Kim, Hyun-Chul (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology) ;
  • Go, Young Jun (Business Planning Team, Korea Optical Industry Support Center) ;
  • Park, Dae Jin (Business Planning Team, Korea Optical Industry Support Center) ;
  • Lee, Se Guen (Division of Nano-Bio Technology, Daegu Gyeongbuk Institute of Science and Technology)
  • 투고 : 2015.02.02
  • 심사 : 2015.03.05
  • 발행 : 2015.03.31
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초록

목적: 본 연구에서는 안경테 가공공정별 셀룰로오스 아세테이트(CA) 판재의 물성을 분석 함으로써 최종 완제품의 물성 최적화를 위해 가공조건과 CA판재 물성과의 상관관계를 조사하는 것을 연구목적으로 한다. 방법: 안경테 가공공정별 CA 판재의 물성 변화를 확인하기 위해, 벤딩 공정, 바렐 공정 및 초음파 세척공정과 동일한 조건에서 제조된 판재의 물성이 평가되었다. 일련의 공정을 통해 제조된 판재의 물성은 광택도, 기계적 물성, 및 열적 특성을 통해 비교 분석되었다. 결과: 바렐 공정을 거친 CA 판재의 경우, 경도 및 기계적 물성이 증가함을 확인하였으며, 반면, 굽힘 강도 및 충격강도의 감소를 보였다. 이는 공정을 거치면서 CA 판재가 brittle한 특성을 보임을 의미한다. 또한 열분석 결과, 가소제 분해 온도 영역에서, 약 3% 내외의 가소제 감량을 확인하였다. 결론: 안경테 가공공정 중 바렐 공정이 CA 판재 물성에 급격한 영향을 미침을 확인하였고, 이는 가소제 총량의 감량에 기인한 현상으로 판단된다.

Purpose: For optimizing properties of final glasses frame, the aim of this study is to examine the correlation of processing conditions and properties of cellulose acetate (CA) sheets through the investigation of properties of CA sheets prepared under processing steps. Methods: The properties of CA sheets were investigated in terms of different glasses frame processing conditions, bending process, barrel process, and ultrasonic cleaning process. CA sheets prepared through the sequential processing were examined by various analysis: gloss, mechanical properties, thermal properties. Results: After barrel process, hardness and tensile strength of CA sheet were increased. However, bending strength and impact strength were decreased. It is suggested the CA sheet had became rather stiff state (brittle). Also, in degradation temperature region of plasticizer, about 3% of reduction in plasticizer weight was confirmed upon TGA analysis. Conclusions: Glasses frame process, especially in the barrel process have a profound influence on the properties of CA sheet owing to reduction of total amount of plasticizer.

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참고문헌

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