| SEBS-g-MA对R-PET/LLDPE共混物结构与性能的影响 |
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| 引用本文： | 张洪生,郭卫红,李滨耀,吴驰飞.SEBS-g-MA对R-PET/LLDPE共混物结构与性能的影响[J].高分子材料科学与工程,2007,23(5):140-143. |
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| 作者姓名： | 张洪生 郭卫红 李滨耀 吴驰飞 |
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| 作者单位： | 华东理工大学高分子合金研究室,上海,200237 |
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| 基金项目： | 国家自然科学基金资助项目(20574019) |
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| 摘 要： | 以SEBS-g-MA为相容剂,借助力学性能、DSC、SEM和DMA等表征手段对SEBS-g-MA在R-PET/LLDPE/SEBS-g-MA共混物中的作用进行研究。研究发现,添加质量分数10%的SEBS-g-MA时,共混物的缺口冲击强度和断裂伸长率都得到明显的改善。DSC分析结果表明,LLDPE和PET的熔点都没有发生变化,但PET的熔融峰出现双峰。SEM结果显示,添加10%SEBE-g-MA能够使LLDPE在PET基体中充分分散,过量的SEBS-g-MA会诱导部分PET进入分散相,最终形成Salami结构的聚集体。
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| 关 键 词： | 回收对苯二甲酸二乙酯 线性低密度聚乙烯 SEBS-g-MA 微观结构 |
| 文章编号： | 1000-7555（2007）05-0140-04 |
| 修稿时间： | 2006-07-05 |
Effect of SEBS-g-MA on Properties and Structure of R-PET/LLDPE Blends |
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| ZHANG Hong-sheng,GUO Wei-hong,LI Bin-yao,WU Chi-fei.Effect of SEBS-g-MA on Properties and Structure of R-PET/LLDPE Blends[J].Polymer Materials Science & Engineering,2007,23(5):140-143. |
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| Authors: | ZHANG Hong-sheng GUO Wei-hong LI Bin-yao WU Chi-fei |
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| Affiliation: | Polymer Alloy Laboratory, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | SEBS-g-MA was successfully applied to compatibilize recycled poly(ethylene terephthalate) /linear low density polyethylene(R-PET/LLDPE) blends.The techniques applied to characterize the effect of SEBS-g-MA on R-PET/LLDPE blends included mechanical properties testing,DSC,DMA and SEM.The results indicate that tensile properties,thermal properties and morphology of blends are improved effectively by addition of 10wt% SEBS-g-MA.The charpy impact strength and elongation at break is increasing from 7.3 kJ/m2 and 10.4% to 14.7 kJ/m2 and 267.5%,respectively.Excessive SEBS-g-MA can induce that PET enters into disperse phase to form congeries of salami structure. |
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| Keywords: | recycled poly(ethylene terephthalate) linear low density polyethylene maleic anhydride-grafted poly(styrene-ethylene/butyldiene-styrene) micro-structure |
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