利用聚乙烯一辛烯彈性體接枝馬來酐改善聚對苯二甲酸乙二酯／高密度聚乙烯摻合物之相容性

Compatibilization of Poly (ethylene terephthalate)/ High Density Polyethylene Blends with Maleic Anhydride-Grafted-Polyethylene-Octene Elastomer

邱顯堂(H.T. Chiu) ； 蕭耀貴(Y.K. Hsiao)

《材料科學與工程》 37卷4期 (2005/12) Pp. 182-188

https://doi.org/10.6409/JMSE.200512.0182

摘要

本研究係利用相容化效應的方法來達到增韌PET/HDPE摻合物的目的，而其中促成PET與HDPE相容化效應的主要原因係使用馬來酐(MA)接枝POE彈性體的POE-g-MA共聚合物當相容劑。利用遠紅外線光譜鑑定分析、掃描式電子顯微鏡、衝擊試驗及流變行爲分析等來研究POE-g-MA在PET/HDPE摻合物中在界面接著性及衝繫強度性質之改善效應。結果顯示，POE-g-MA能大幅改善PET/HDPE的衝擊強度，並且由於POE-g-MA與PET/HDPE摻合物能形成交互反應，在PET/HDPE摻合加工時，能有效降低HDPE分散在PET基材中顆粒的粒徑，POE-g-MA的添加也會提昇PET/HDPE摻合物的視粘度。

關鍵字

韌性 ； PET ； HDPE ； POE彈性體 ； 相容化

並列摘要

In this study, a compatibilization strategy for Poly (ethylene terephthalate) (PET) and high density Polyethylene (HDPE) blends to achieve high toughness is described. Blends of PET and HDPE compatibilized with maleic anhydride (MA)-grafted-Polyethylene-octene elastomer (POE-g-MA) were characterized. The effect of POE-g-MA on interfacial adhesion and impact-strength properties of PET/HDPE blends was investigated through infrared spectrum (IR), scanning electron microscopy (SEM) observation, impact testing, and rheoloyical beharior analysis. The results showed that the impact strength of PET/HDPE blends was dramatically improved by blending with POE-g-MA. The size of HDPE particles in PET matrix were sharply reduced due to interaction between POE-g-MA and PET/HDPE blends during melt processing. The addition of POE-g-MA to PET/HDPE blends lead to apparent viscosity buildup.

並列關鍵字

toughness ； PET ； HDPE ； POE elastomer ； compatibilization