用平行板和毛细管流变仪测定并研究了具有剥离结构的低密度聚乙烯(LDPE)/乙烯-醋酸乙烯共聚物(EVA)/蒙脱土纳米复合材料熔体的稳态剪切流变行为.研究结果表明,蒙脱土含量较低的复合物熔体,在低剪切速率下,即出现剪切变稀现象;而在较高剪切速率下,填充物浓度对体系熔体的剪切粘度影响较小;与基体树脂相比较,蒙脱土的加入,使其熔体的非牛顿指数降低,粘流活化能略有增加.
参考文献
[1] | Kawasumi M.;Kato M.;Usuki A.;Okada A.;Hasegawa N. .PREPARATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE-CLAY HYBRIDS[J].Macromolecules,1997(20):6333-6338. |
[2] | Cho J W;Paul D R .[J].Polymer,2001,42:1083-1094. |
[3] | Park C;Park O Ok et al.[J].Polymer,2001,42:7465-7475. |
[4] | Huang Junchao;Zhu Zikang;Yin Jie et al.[J].Polymer,2001,42:873-877. |
[5] | Vaia RA.;Giannelis EP. .POLYMER MELT INTERCALATION IN ORGANICALLY-MODIFIED LAYERED SILICATES - MODEL PREDICTIONS AND EXPERIMENT[J].Macromolecules,1997(25):8000-8009. |
[6] | Krishnamoorti R.;Giannelis EP. .RHEOLOGY OF END-TETHERED POLYMER LAYERED SILICATE NANOCOMPOSITES[J].Macromolecules,1997(14):4097-4102. |
[7] | Ren J;Silva A S;Krishnamoorti R .[J].Macromolecules,2000,33:3739-3746. |
[8] | Solomon M J;Almusallam A S;Seefeldt K F .[J].Macromolecules,2001,34:1864-1872. |
[9] | Krishnamoorti R;Yurekli K .[J].Current Opinion in Colloid and Interface Science,2001,6:446-470. |
[10] | Okamoto M;Morita S et al.[J].Polymer,2000,41:3887. |
[11] | 漆宗能;尚文宇.聚合物/层状硅酸盐纳米复合材料理论与实践[M].北京:化学工业出版社,2002:114-116. |
[12] | Poslinski A J;Ryan M E;Gupta R K et al.[J].Journal of Rheumatology,1988,32(07):703-735. |
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