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Morphology and Mechanical Properties of Recycled PVC Blends (III) - Morphologies and Mechanical Properties of Recycled PVC/PE Blends with Different Kinds of Compatibilizers and Mixing Conditions  

유영재 (한국화학연구원 고분자나노소재연구팀)
박재찬 (한국화학연구원 고분자나노소재연구팀)
원종찬 (한국화학연구원 고분자나노소재연구팀)
최길영 (한국화학연구원 고분자나노소재연구팀)
이재흥 (한국화학연구원 고분자나노소재연구팀)
Publication Information
Polymer(Korea) / v.28, no.6, 2004 , pp. 468-477 More about this Journal
Abstract
The polymer blends of waste poly(vinyl chloride) (RPVC) and waste polyethylene (RPE) were prepared by melt mixing. Various ethylene-vinyl acetate copolymers (EVA) and ethylene-methacrylic acid Na salt copolymer (ionomer) were used as compatibilizer. Their morphologies and mechanical properties were evaluated as a funtion of mixing sequence and time. EVA with high vinyl acetate contents showed a rapid increment of tensile properties when small amount was added. Tensile properties of the blends were gradually increased with the addition of ionomer. Morphologies of RPVC/RPE blends were analyzed by scanning electron microscopy. FT-IR data showed that EVA was a good compatibilizer in RPVC/RPE blend compared to ionomer. Mechanical properties of the blends were highly enhanced when RPVC and compatibilizer were mixed and first RPE was added later.
Keywords
waste PVC; waste PE; blend; compatibilizer; morphology;
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