화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.31, No.1, 8-13, January, 2007
Export Citation
상용화제가 포함된 나일론 6/Poly(acrylonitrile-co-styrene-co-acrylic rubber) 블렌드의 특성
Characteristics of Nylon 6/Poly(acrylonitrile-co-styrene-co-acrylic rubber) Blends Containing Compatibilizer
김량욱, 유선화, 김창근†
  • 중앙대학교 화학신소재공학부
Lang Wook Kim, Sun Hwa Yoo, and Chang Keun Kim†
  • School of Chemical Engineering & Materials Science, Chung-Ang University, 221 Heuksuk-dong, Dongjak-gu, Seoul 156-756, Korea
E-mail:
초록
나일론 6/poly(acrylonitrile-co-butadiene-co-styrene)(ABS) 블렌드의 단점을 해결하기 위해 ABS의 고무상인 폴리부타디엔 대신 폴리(부틸 아크릴레이트)를 고무상으로 포함하고 있는 poly(acrylonitrile-co-styrene- co-acrylic rubber)(ASA)를 사용하여 새로운 나일론/ASA 블렌드를 실험하였다. 고충격성을 갖는 블렌드 제조를 위하여 상용화제로 무수 말레산을 25 wt% 포함한 poly(styrene-co-maleic anhydride) (SMA)와 이를 3 wt% 이하 포함한 poly(styrene-co-acrylonitrile-co-maleic anhydride)(SANMA)를 사용하여 블렌드를 제조하였다. 나일론/ASA 블렌드에서 상용화제의 함량에 따른 물성 변화는 나일론/ABS 블렌드와 유사한 경향을 나타내었다. 블렌드 내의 고무 함량이 20 wt% 이상일 때 안정된 물성의 고충격 블렌드가 제조되었다. 블렌드를 사출 성형 온도에서 사출 성형기 내에 체류시킨 후 제조한 시편의 충격 강도를 시험한 결과 SMA를 상용화제로 사용한 경우 충격 강도의 감소가 관찰된 반면 SANMA를 상용화제로 사용한 블렌드에서는 충격 강도의 변화가 거의 없었다.
To overcome drawbacks of the nylon 6/poly(acrylonitrile-co-butadiene-co-styrene)(ABS) blend, nylon 6 blend with poly(acrylonitrile-co-styrene-co-acrylic rubber)(ASA), which containing poly (butyl acrylate) as a rubber phase in substitute of poly(butadiene) in ABS, was examined. Poly(styrene-co-maleic anhydride)(SMA) containing 25 wt% of maleic anhydride (MA) or poly(styrene-co-acrylonitrile-co-maleic anhydride) (SANMA) containing less than 3 wt% MA was used as a compatibilizer to fabricate blends having high impact strength. Changes in the mechanical properties of nylon 6/ASA blend with compatibilizer content were similar with those of nylon 6/ABS blend. Blends having high impact strength was produced when blends contained more than about 20 wt% rubber. Blends containing SAM or SANMA as a compatibilizer were stayed in a injection molding machine at the molding temperature and afterwards specimens for the examination of the impact strength was prepared. Impact strength of blends containing SMA was decresed with retention time, while that of blends containing SANMA was not changed with retention time.
Keywords:nylon 6/ASA blend;SANMA compatibilizer;weatherability;thermal stability
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