Article
  • Impact Strength of Immiscible ABS/PPO Blend by Various Process Conditions of Reaction Extrusion
  • Lee CH, Lee SG, Kang S, Yung S, Kim JH, Choe S
  • 반응압출의 가공조건에 의한 비상용성 ABS/PPO 블렌드의 충격강도
  • 이창희, 이상근, 강성우, 윤승희, 김정호, 최순자
Abstract
Enhancement of heat deflection temperature (HDT) and impact strength has been investigated due to the various processing conditions of reaction extrusion. Three processing methods employed were ; the simple mixing of ABS and PPO : the simultaneous mixing of ABS, PPO, compatibilizer and and maleic anhydride (called A-series) : the step-wise mixing of the mixtures of ABS, compatibilizer and the MA-modified PPO (called B-series). The ABS materials which were comprised from acrylonitrile, styrene and butadiene rubber, were divided into four different sorts according to the contents of each component named as ABS-1, ABS-2, ABS-3 and ABS-4. The ABS-3B/PPO blend prepared by the stepwise mixing showed the highest impact strength. The proposed reaction mechanism was existence of the compatibility between ABS and the compatibilizer, and the reactivity between the MA-modified PPO and the compatibilizer. The highest impact strength (47 kgㆍcm/cm) and HDT(110 ℃) were obtained in ABS-3B/PPO at 50/50 in the presence of 10 wt% compatibilizer(2) an 1 wt% MA, and 60/40 was the next. The agglomerated rubber shape in ABS-3 was believed to enhance the reactivity between the compatibilized ABS and the MA-modified PPO.

비상용성 ABS/PPO 블렌드를 상용화제를 사용한 반응압출에 의해 열변형 온도 및 충격강도를 향상시켰다. 가공조건으로는 ABS와 PPO 두 물질에 의한 단순 mixing, ABS, PPO, 상용화제 및 maleic anhydride (MA)로 반응시킨 동시 mixing (A-series로 명시), 그리고 MA로 개질된 PPO에 ABS와 상용화제로 반응시킨 순차적 mixing(B-series로 명시)의 세 가지이다. 사용된 ABS는 아크릴로니트릴, 스트렌 및 부타디엔(BR)의 조성에 따라 ABS-1, ABS-2, ABS-3, ABS-3로 나누었다. 반응조건에 따른 충격강도는 단순 mixing보다는 동시 mixing이, 또 동시보다는 순차적 mixing이 더 높게 나타났다. 이로써 반응압출로 가공될 Ep때, ABS와 상용화제 사이에는 상용성이 MA로 개질된 PPO와 상용화제 사이에는 반응성이 존재하는 메카니즘을 설계할 수 있다. 전체적으로 상용화제 (2) 10 wt%와 MA wt%가 함유된 ABS-3B/PPO=50/50이 가장 높은 충격강도(47 kg·cm/cm)와 열변형 온도 (110 ℃)를 보였으며, 60/40이 다음으로 높았다. 이는 ABS-3에 함유된 agglomerated 고무상이 상용화제와 반응압출시 반응성을 향상시킨 것으로 여겨진다.

Keywords: reaction extrusion; impact strength; heat deflection temperature; ABS terpolymer; PPO(poly(2,6-dimethl-1,4-phenylene oxide))

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  • 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

  • 1999; 23(1): 98-104

    Published online Jan 25, 1999