通过选择适当的乳化剂和水解温度以及控制水对于乳化剂的摩尔比,采用油包水微乳液法在聚醚多元醇中原位合成了纳米SiO2,该聚醚多元醇进一步与TDI反应制备出聚氨酯硬质泡沫塑料.TEM显示原位合成的SiO2微粒呈球状且分散,粒径为50～70nm.随着SiO2填加量的增加,该聚氨酯硬质泡沫塑料的吸水率先升后降.因为原位生成纳米SiO2的加入,聚氨酯硬质泡沫塑料的拉伸强度得到显著提高,冲击强度缓慢增大,而压缩强度则先轻微降低,一直到SiO2的含量为0.9wt%时才开始急剧增大.
参考文献
| [1] | I.Javni;W.Zhang;V.Karajkov;Z.S.Perovic .Effect of Nano-and Micro-Silica Fillers on Polyurethane Foam Properties[J].Journal of Cellular Plastics,2002(3):229-239. |
| [2] | Teofil Jesionowski;Jerzy Jeczalik .Silane-modified solium-aluminium silicates-fillers used in polyurethane elastomers[J].Journal of Adhesion Science and Technology,2001,15(14):1711-1724. |
| [3] | Young W Park;James E Mark .Reinforcement of the aromatic polyamidepoly (trimethylhexamethylene terephthalamide ):comparsions among blending ex situ silica with and without a bonding agent and in situ generated silica[J].Polymer-Plastics Technology and Engineering,2002,39:875-885. |
| [4] | T Hanemann;J Boehm;P Henzi et al.From micro to nano :properties and potential applications of micro- and nano- filled polymer ceramie composites in microsystem technology[J].IEEE Transactions on Nanotechnology,2004,151(04):167. |
| [5] | B Yaghi;M Benayoune;A Al-Bemani .Viscosity of Water-oil emulsions with added nano-particles[J].Petroleum Science and Technology,2001,19(3-4):373-386. |
| [6] | Nissim Garti;Idit Amar;Anan Yaghmur .Interfacial modification and structural transitions induced by guest molecules solubilized in u-type[J].Journal of Dispersion Science and Technology,24(3-4):400. |
| [7] | Zoran S Petrovic.Structure and properties of polyurethane-silica nanocomposites[J].Journal of Applied Polymer Science,2000(76):133. |
| [8] | 黄国波,童筱莉,邬润德.无机纳米粒子原位复合聚氨酯研究[J].化工新型材料,2003(01):12-14. |
| [9] | 黄锐,王建华,周秋明,田春蓉,王港,陈娅,辛芳,芦艾.纳米碳酸钙对硬质聚氨酯泡沫塑料力学性能的影响[J].中国塑料,2001(08):28-31. |
| [10] | 秦桑路,赵斌,杨振国,胡柏,金忠(告羽).混杂增强聚氨酯复合硬质泡沫塑料的研制[J].工程塑料应用,2003(04):1-3. |
| [11] | 刁兆玉;刘继金.微乳液结构的光散射及折光方法的研究[J].湖北教育学院学报,1999(01):53-55. |
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