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摘要
采用动态硫化手段制备合成杜仲胶(TPI)和线性低密度聚乙烯(LLDPE)的新型热塑性弹性体,制备了不同橡塑比的弹性体,通过动态热机械分析、扫描电镜、门尼黏度仪、转矩流变仪和力学性能测试等手段,探究制备的TPI/LLDPE热塑性弹性体的基本性能。结果表明:当橡塑比为RP/73时,塑料与橡胶的分布形态最理想,而综合性能也较好,拉伸强度为10.06MPa,断裂伸长率为279%,加工门尼黏度为22.61,邵氏硬度D为42,断裂回弹率为80.86%。
Abstract
The dynamic vulcanization was used to prepare new thermoplastic elastomer(TPE) of synthetic gutta percha (TPI) and linear low density polyethylene(LLDPE).By preparing elastomers with different rubber-to-plastic ratios,dynamic thermomechanical analyzer (DMA),scanning electron microscope (SEM),mooney viscometer,torque rheology were used.The basic properties of the prepared TPI/PE were explored.The results shown that when the rubber-to-plastic ratio was RP/73,the distribution of plastic and rubber was the most ideal,and the overall performance was also better.The tensile strength was 10.06MPa,the elongation at break was 279%,and the processed mooney viscosity was 22.61,the shore hardness D was 42,and fracture rebound rate was 80.86%.
关键词
动态硫化
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热塑性弹性体
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杜仲胶
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聚乙烯
Key words
dynamic vulcanization
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thermoplastic elastomer
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eucommia gum
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polyethylene
TPI/LLDPE新型热塑性弹性体的制备及性能研究[J].
化工新型材料, 2022, 50(9): 94-97 DOI:10.19817/j.cnki.issn1006-3536.2022.09.019
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基金资助
辽宁省重点研发计划项目(2017304004)
