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首页> 外文期刊>Journal of Applied Polymer Science >Thermal and rheological effects of sepiolite in linear low-density polyethylene/starch blend
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Thermal and rheological effects of sepiolite in linear low-density polyethylene/starch blend

机译：海泡石在线性低密度聚乙烯/淀粉共混物中的热流变效应

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摘要

Effect of different concentrations of sepiolite on thermal and rheological properties of linear low-density polyethylene/starch blend was investigated. Vinyl trimethoxy silane was used as compatibilizing and crosslinking agent. The composites were produced by peroxide-initiated melt mixing technique. Improved thermal stability and tensile strength were observed in crosslinked formulations. Maximum tensile properties were observed in composites containing 2 parts per hundred (phr) sepiolite and 15 phr starch. Rheological study of crosslinked composite showed a linear viscoelastic behavior with high complex viscosity and dynamic shear storage modulus. Scanning electron microscopy also revealed that silane has improved the dispersion of filler and interaction among the polymer and filler interphase. These results suggest that the presence of sepiolite act as an effective filler to enhance the thermal and rheological properties.
机译：研究了不同浓度的海泡石对线性低密度聚乙烯/淀粉共混物的热和流变性能的影响。乙烯基三甲氧基硅烷用作增容剂和交联剂。通过过氧化物引发的熔融混合技术生产复合材料。在交联配方中观察到改善的热稳定性和拉伸强度。在每百份（phr）2个海泡石和15 phr淀粉的复合物中观察到最大的拉伸性能。交联复合材料的流变学研究表明具有高复数粘度和动态剪切储能模量的线性粘弹性行为。扫描电子显微镜还显示，硅烷改善了填料的分散性以及聚合物与填料界面之间的相互作用。这些结果表明，海泡石的存在充当增强热和流变性质的有效填料。

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