한국환경과학회지 제27권 제11호 (p.1023-1028)

|ORIGINAL ARTICLE|
2단계 경화형 형상기억 폴리우레탄의 합성 및 분석

Synthesis and Characteristics of 2 Step-curable Shape Memory Polyurethane
키워드 :
Shape memory polymer,Polyurethane,Resilience,UV curing

목차

Abstract
1. 서 론
2. 실험 재료 및 방법
  2.1. 실험재료
  2.2. SMPU의 합성
  2.3 SMPU 필름의 제조
  2.4. SMPU 필름의 2차 경화
  2.5. 분석
3. 결 과
  3.1. 합성
  3.2. 2차 경화
  3.3. 형상기억능력
4. 결 론
REFERENCES

초록

Shape memory materials are widely used in high-tech industries. Although shape memory polymers have been developed, they have a disadvantage, only unidirectional resilience. Shape memory polymers with bi-directional recovery resilience have been actively studied. In this study, a bidirectional shape memory polyurethane was synthesized using poly(ε-caprolactone) diol, methylene dicyclohexyl diisocyanate, and hydroxyethyl acrylate. The first physical curing occurred between hard segments and hydrogen bondings when the solution was dried. The second curing in acrylate groups was performed by UV exposure. A degree of curing was analyzed by infrared spectroscopy. The shape memory properties of 2 step-cured polyurethanes were investigated as a function of UV curing time.