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首页> 外文期刊>Journal of Applied Polymer Science >Study on poly(butylene adipate-co-terephthalate)/starch composites with polymeric methylenediphenyl diisocyanate
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Study on poly(butylene adipate-co-terephthalate)/starch composites with polymeric methylenediphenyl diisocyanate

机译：聚合亚甲基二苯基二异氰酸酯的聚己二酸丁二酯-对苯二甲酸对苯二甲酸/淀粉复合材料的研究

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摘要

To lower the cost of poly(butylene adipate-co-terephthalate) or PBAT, starch was used as a filler in this study. To increase tensile strength of PBAT/starch composites, polymeric methylenediphenyl diisocyanate (pMDI) was used as a compatibilizer. PBAT was melt-mixed with starch in a kneader, and then the mixtures were compression-molded. The effects of starch and pMDI content on the tensile strength and elongation at break of PBAT/starch composites were examined. The morphology and biodegradability of the composites in soil were also studied. The tensile strength of PBAT and PBAT/starch composites increases with increasing content of pMDI. The increase of weight average molecular weight of PBAT and improved interaction between PBAT and starch were observed with increasing content of pMDI. The weight average molecular weights of buried PBAT and the composites in soil significantly decrease. Especially, the reduction of the weight average molecular weight of PBAT/starch (70/30) composite is the most significant. (C) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41884.
机译：为了降低聚己二酸丁二酯或对苯二甲酸丁二酯的成本，本研究中使用淀粉作为填充剂。为了提高PBAT /淀粉复合材料的拉伸强度，聚合物亚甲基二苯基二异氰酸酯（pMDI）被用作增容剂。将PBAT在捏合机中与淀粉熔融混合，然后将混合物压模。研究了淀粉和pMDI含量对PBAT /淀粉复合材料拉伸强度和断裂伸长率的影响。还研究了复合材料在土壤中的形态和生物降解性。 PBAT和PBAT /淀粉复合材料的拉伸强度随pMDI含量的增加而增加。随着pMDI含量的增加，观察到PBAT重均分子量的增加以及PBAT与淀粉之间相互作用的改善。土壤中埋藏的PBAT和复合材料的重均分子量显着降低。特别地，PBAT /淀粉（70/30）复合材料的重均分子量的降低是最显着的。 （C）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41884。

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