纳米二氧化钛增强硬质聚氨酯泡沫塑料的制备

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材料工程 ›› 2004, Vol. 0 ›› Issue (2) : 3-5,9.

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研究与应用

纳米二氧化钛增强硬质聚氨酯泡沫塑料的制备

高四¹, 王军¹, 王亦菲¹, 汪萍¹, 王建华², 刘永华²

作者信息 +

Preparation of Nano Titanium Dioxide Reinforced Rigid Polyurethane Foam

GAO Si¹, WANG Jun¹, WANG Yifei¹, WANG Ping¹, WANG Jianhua², LIU Yonghua²

Author information +

文章历史 +

摘要

采用功率超声,将纳米二氧化钛颗粒分散到多次甲基多苯基多异氰酸酯(PAPI)体系内,然后与聚醚多元醇聚合制得了纳米二氧化钛增强的硬质聚氨酯泡沫塑料。SEM分析表明纳米二氧化钛均匀分散在聚氨酯泡沫塑料中。在较低添加量时纳米二氧化钛对压缩强度和冲击强度有一定提高,但会引起PAPI粘度迅速增加,从而导致发泡反应困难,当添加量为10%(质量分数)时压缩强度和冲击强度开始下降。

Abstract

By power ultrasonic, nano titanium dioxide particles were dispersed into polyaryl-polymethylene-isocyanate(PAPI)and rigid polyurethane foams(RPU) reinforced by nano TiO₂ were prepared by polymerization PAPI with polyether polyol. SEM was employed to observe structures of TiO₂ filled polyurethane foam and showed that nano TiO₂ particles had been dispersed uniformly in foam. Results of mechanic test show that nano TiO₂ particles in low loading fraction could increase the compress strength and impact strength of rigid polyurethane foam. But addition of nano TiO₂ led to the rapid accretion of viscosity of PAPI, which made the foam reaction difficult and contributed to the impact strength decrease in addition of 10% nano TiO₂.

导出引用

高四, 王军, 王亦菲, 汪萍, 王建华, 刘永华. 纳米二氧化钛增强硬质聚氨酯泡沫塑料的制备[J]. 材料工程, 2004, 0(2): 3-5,9

GAO Si, WANG Jun, WANG Yifei, WANG Ping, WANG Jianhua, LIU Yonghua. Preparation of Nano Titanium Dioxide Reinforced Rigid Polyurethane Foam[J]. Journal of Materials Engineering, 2004, 0(2): 3-5,9

中图分类号： TQ323.8 TB383

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