CAJ | 학술논문

用未经表面处理和经表面处理的纳米TiO2 对不饱和聚酯(UP)树脂进行填充改性。研究了纳米TiO2用量对不饱和聚酯树脂的拉伸强度、弯曲强度、冲击强度、断裂伸长率的影响。结果表明,经表面处理的纳米TiO2用量为4% 时,材料的增韧增强效果最好。用DSC测定复合材料的玻璃化温度(Tg),可以发现复合材料的玻璃化温度比纯不饱和聚酯树脂大,且经处理的填充的复合材料的Tg更高,这与力学性能结果相一致。
용미경표면처리화경표면처리적납미TiO2 대불포화취지(UP)수지진행전충개성。연구료납미TiO2용량대불포화취지수지적랍신강도 、만곡강도、충격강도、단렬신장솔적영향。결과표명,경표면처리적납미TiO2용량위4% 시,재료적증인증강효과최호。용DSC측정복합재료적파리화온도(Tg),가이발현복합 재료적파리화온도비순불포화취지수지대,차경처리적전충적복합재료적Tg경고,저여 역학성능결과상일치。
In this paper, unsaturated polyester resin was modified by filling treated and untreated nano-titanium dioxide. The effec ts of content of nano-TiO2 on the tensile strength, bending strength, impact strength and elongation at break of UP were studied. The results show that, when the content of treated-nano-TiO2 is 4%, the mechanical properties are optim al. The glass temperature(Tg) of composite materials were measured by DSC. It is found that the Tg of composite materials is higher than that of UP resin, and the composite materials of treated TiO2 has a higher Tg, whic h is in agreement to the results of mechanical properties.