Polymer-polymer HDPE blends

M. D. Ragushina, V. V. Bitt, T. L. Gorbunova, E. Kalugina
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Abstract

The article presents the results of a study of the addition of high-viscosity unimodal HDPE on the complex of physicochemical, rheological and strength properties of PE100. The analysis of thermal properties according to TGA/DTA data as well as the results of studying the composition of volatile products, and the molecular weight characteristics of individual components and blends are presented. The conducted studies have shown that the introduction of high-viscosity unimodal HDPE into bimodal PE100 makes it possible to control the rheological characteristics of the material, shifting the “melt breakdown” to the area of high shear rates, i.e. to increase the processability of the original PE 100, and expand the processing range, which may be useful in the production of extruded sheets and profile products. At the same time, the strength characteristics of the finished product will remain at the level of PE100.
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聚合物-聚合物HDPE共混物
本文介绍了高粘度单峰HDPE的加入对PE100的理化、流变和强度的影响的研究结果。根据TGA/DTA数据分析了其热性能,并对挥发产物的组成进行了研究,同时对单体组分和共混物的分子量进行了分析。所进行的研究表明,在双峰PE100中引入高粘度单峰HDPE,可以控制材料的流变特性,将“熔体击穿”转移到高剪切速率的区域,即提高原PE100的可加工性,扩大加工范围,这可能对挤出板材和型材产品的生产有用。同时,成品的强度特性将保持在PE100的水平。
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