The Effect of Surface-modified Nano-titania on the Ultraviolet Aging Properties of Bitumen
The Effect of Surface-modified Nano-titania on the Ultraviolet Aging Properties of Bitumen
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DOI：
10.1080/10916466.2014.938825
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发表时间：
2014-01-01
影响因子：
1.5
通讯作者：
Zhu, C. Z.
中科院分区：
文献类型：
--
作者：
Liu, C. H.;Zhang, H. L.;Zhu, C. Z.
研究了纳米二氧化钛表面改性对沥青紫外老化性能的影响。傅立叶变换红外光谱分析表明，γ-（2，3-环氧丙氧基）丙基三甲氧基硅烷键合在纳米二氧化钛表面。通过对纳米二氧化钛进行表面改性，提高了纳米二氧化钛在沥青中的分散稳定性。纳米二氧化钛的加入降低了沥青的粘度老化指数和羰基指数。纳米二氧化钛改性沥青经表面改性后，其抗紫外老化性能得到进一步提高。结果表明，纳米二氧化钛可以有效地作为改性剂来提高沥青的抗紫外老化性能。
The effect of surface modification of nano-titania on ultraviolet (UV) aging properties of bitumen was investigated. The results show that gamma-(2,3-epoxypropoxy) propytrimethoxysilane is bound on the surface of nano-titania according to Fourier transform infrared spectroscopy analysis. The dispersion stability of nano-titania in bitumen is improved by surface modification of nano-titania. Viscosity aging index values and carbonyl indexes of the bitumen are decreased by adding nano-titania. After surface modification, the UV aging resistance of nano-titania modified bitumen can be further improved. The result suggests that nano-titania can be effectively used as a modifier to improve the UV aging resistance of bitumen.