Effect of Morphology on Mechanical Properties of PP/HIPS/Compatibilizer Blend

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  • PP/HIPS/相容化剤ブレンド材料のモルフォロジーが機械的特性に及ぼす影響
  • PP/HIPS/ソウヨウカザイ ブレンド ザイリョウ ノ モルフォロジー ガ キカイテキ トクセイ ニ オヨボス エイキョウ

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Abstract

<p>Influence of compatibilizer on morphologies and mechanical properties for polypropylene/high</p><p>impact polystyrene/compatibilizer blends was investigated. Three types of poly（styrene-block-poly（ethylene-butene）-block-polystyrene triblock copolymer（SEBS）used as compatibilizer have differentratio of styrene/ethylene-butene（R）. SEBS volume fraction（φe）was from 0.05 to 0.3. On morphologies of the polymer blends, R influenced diameter of dispersed phase. Also, in case of small R,impact strength of the polymer blends was improved at little until φe ＝0.1. And, the impact strength of those was improved remarkably with φe above 0.15. On the other hand, in case of large R, impact strength was improved at little as well as in case of small R until φe＝0.1. However, the impact strength was unimproved with φe above 0.15. In case of small R, elastic modulus and tensile yield stress of thepolymer blends were decreased. However, in case of large R, those were maintained highly.</p>

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