Article
  • Thermal and Mechanical Properties of Polycarbonate/SAN Blends
  • Park LS, Kwon YH, Lee IT, Kim BS
  • Polycarbonate/SAN 블렌드의 열적 및 기계적 성질
  • 박이순, 권영환, 이인태, 김병선
Abstract
Polycarbonate was melt blended with three styrene-acrylonitrile copolymers (SAN-1:Mw=87,000, AN=25%, SAN-2:Mw=138,000, AN=32%, SAN-3:Mw=183,000, AN=30%) and thermal and mechanical properties were studied. PC/SAN blends showed two Tg's from the DSC measurements. The partial miscibility of PC in SAN was relatively higher in SAN-1 than SAN-2 or SAN-3. In these PC/SAN blends the effect of molecular weight of SAN was relatively dominant compared with AN content of SAN in such mechanical properties as ultimate strength, elongation, and notched Izod impact strength. Similar effect was observed in the apparent shear viscosity vs. shear rate curves of PC/SAN blends.

분자량과 acrylonitrile(AN) 함량이 다른 3종류 styrene-acrylonitrile copolymer (SAN-1:Mw=87,000, AN=25%, SAN-2:Mw=138,000, AN=32%, SAN-3:Mw=183,000, AN=30%)와 polycarbonate(PC)의 용융 블렌드를 제조하고 역적, 유변학적 및 기계적 성질을 조사하였다. PC/SAN 블렌드는 DSC 실험 결과 두 개의 Tg를 보였으나 PC의 SAN에 대한 부분적인 상용성은 SAN-1의 경우 SAN-2 및 SAN-3보다 비교적 크게 나타났다. 인장강도, 연신율 및 충격강도등 기계적 및 유변학적 성질에 있어서 PC/SAN 블렌드는 주어진 AN함량 범위에서 SAN의 분자량에 의한 영향이 AN 함량변화에 의한 것보다 상대적으로 크게 나타났다.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1991; 15(1): 21-26

    Published online Feb 25, 1991

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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