| 海泡石/UHMWPE/LLDPE复合材料动态流变学行为研究 |
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| 引用本文： | 罗璇,胡瑾,敬波,戴文利.海泡石/UHMWPE/LLDPE复合材料动态流变学行为研究[J].塑料工业,2012,40(4):82-85,114. |
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| 作者姓名： | 罗璇 胡瑾 敬波 戴文利 |
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| 作者单位： | 湘潭大学化学学院,湖南湘潭,411105 |
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| 基金项目： | 湖南省自然科学基金项目(No.10JJ3076);湖南省教育厅自然科学基金项目(No.09C948) |
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| 摘 要： | 利用偏光显微镜(POM)和高级流变扩展系统仪(ARES)对海泡石/超高分子量聚乙烯(UHMWPE)/线性低密度聚乙烯(LLDPE)复合材料的流变学行为进行了研究。结果表明,改性后的海泡石表现出不同的流变学行为,用KH-550改性效果较好;UHMWPE颗粒在不同的温度下具有不同的形态,随着转矩流变仪混炼温度的提高,复合体系熔体黏弹性参数发生改变,其中低频储能模量(G’)和零切黏度(η0)逐渐升高,损耗因子(tanδ)在低频区出现内耗峰,表明加工条件的改变引起了熔体结构的转变,从而改变了动态流变学性能。
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| 关 键 词： | 线性低密度聚乙烯 超高摩尔质量聚乙烯 海泡石 动态流变学 |
Rheological Behavior Study of the Sepiolite/UHMWPE/LLDPE Composites |
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| LUO Xuan
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HU Jin
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JING Bo
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DAI Wen-li.Rheological Behavior Study of the Sepiolite/UHMWPE/LLDPE Composites[J].China Plastics Industry,2012,40(4):82-85,114. |
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| Authors: | LUO Xuan HU Jin JING Bo DAI Wen-li |
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| Affiliation: | (College of Chemistry,Xiangtan University,Xiangtan 411105,China) |
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| Abstract: | Rheological behavior of sepiolite/UHMWPE/LLDPE composites were investigated through polarizing microscope(POM)and advanced rheology expanded system(ARES).The results showed that modified sepiolite showed different rheological behavior,KH-550′s modified effect was better.Particles of UHMWPE in different temperature had different forms,with the increase of the mixed refine temperature of torque rheometer,the melt viscoelastic parameters of composite system changed obviously.The low frequency storage modulus and shear viscosity increased gradually,The loss factor(tanδ)in the low frequency area appeared internal friction peak which showed that processing conditions caused the change of structure of the blend melt,and changed the dynamic rheological properties. |
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| Keywords: | LLDPE UHMWPE Sepiolite Dynamic Rheology |
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