Preparation and Anti-ultraviolet Aging Performance of Organic Layered Double Hydroxides/Bitumen Composites
Preparation and Anti-ultraviolet Aging Performance of Organic Layered Double Hydroxides/Bitumen Composites
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有机层状双氢氧化物/沥青复合材料的制备及抗紫外线老化性能
DOI：
10.1007/s11595-019-2147-2
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发表时间：
2019-08
影响因子：
1.6
通讯作者：
Hu Changbin
中科院分区：
文献类型：
--
作者：
Xu Song;Yu Jianying;Ke Yunbin;Xue Lihui;Hu Changbin
利用层状双氢氧化物（LDHs）的高紫外线（UV）反射率的物理性质来提高沥青的抗紫外线老化性能。针对LDHs与沥青相容性差的问题，以十二烷基苯磺酸钠（SDBS）、十二烷基硫酸钠（SDS）和十二烷基磺酸钠（SDSO）三种有机阴离子为改性剂，通过再生工艺制备有机LDHs (OCLDHs)，并对合成的OCLDHs的晶体结构、化学组成、形态特征和紫外线屏蔽性能进行了分析。然后将OCLDHs加入到沥青中，评价OCLDHs/沥青复合材料的储存稳定性和抗紫外线老化性能。结果表明：有机阴离子插入到LDHs的层间，使LDHs的层间距离扩大，粒子形状变得更加不规则和复杂，增强了LDHs在200 ~ 300 nm范围内的吸收能力，而对紫外反射能力影响不大。高温贮存稳定性结果表明，有机改性改善了LDHs与沥青的相容性。与LDHs相比，OCLDHs减少了沥青在紫外线暴露试验中的性能劣化，在提高沥青抗紫外线老化性能方面表现出更好的效果。此外，在三种OCLDHs中，SDBS嵌入的LDHs由于与沥青的相容性最好，并且具有相对较好的紫外线屏蔽效果，因此改善效果最好。
Layered double hydroxides (LDHs) with the physical property of high ultraviolet (UV) reflectance were used to enhance the anti-UV aging performance of bitumen. In view of the poor compatibility of LDHs with bitumen, three organic anions, namely, sodium dodecyl benzenesulfonate (SDBS), sodium dodecyl sulfate (SDS) and sodium dodecyl sulfonate (SDSO), were used as modifiers to prepare organic LDHs (OCLDHs) through regeneration process, and the crystal structure, chemical composition, morphological feature and UV shielding capability of synthesized OCLDHs were analyzed. Then the OCLDHs were added into bitumen to evaluate the storage stability and anti-UV aging property of OCLDHs/bitumen composites. The results show that the organic anions are inserted into the interlayers of LDHs, the intercalation expands the interlayer distance of LDHs, makes the particle shapes become more irregular and complicated, and enhances the absorption ability within the range from 200 to 300 nm while has little influence on the UV reflection ability. Result of high temperature storage stability indicates the organic modification ameliorates the compatibility of LDHs with bitumen. Compared with LDHs, OCLDHs decrease the deteriorations of bitumen's properties during UV exposure test, exhibiting better effect in enhancing anti-UV aging performance of bitumen. Furthermore, among the three OCLDHs, LDHs intercalated by SDBS exhibit the most effective improvement due to the best compatibility with bitumen and comparatively good UV shielding effect.
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影响因子：
5.6
作者：
Inna M. Nangoi;Viviane S. Vaiss;Wladmir F. Souza;S. Chiaro;A. A. Leitão-A.
通讯作者：
Inna M. Nangoi;Viviane S. Vaiss;Wladmir F. Souza;S. Chiaro;A. A. Leitão-A.
影响因子：
5.6
作者：
Costa, Francis Reny;Leuteritz, Andreas;Heinrich, Gert
通讯作者：
Heinrich, Gert
影响因子：
--
作者：
Michael Rajamathi;G. Nataraja;S. Ananthamurthy;P. Kamath
通讯作者：
Michael Rajamathi;G. Nataraja;S. Ananthamurthy;P. Kamath
影响因子：
1.2
作者：
Huang, Yongfang;Feng, Zhengang;Yu, Jianying
通讯作者：
Yu, Jianying
DOI：
10.1007/s11595-014-0918-3
发表时间：
2014-04
期刊：
Journal of Wuhan University of Technology-Mater. Sci. Ed.
影响因子：
--
作者：
D. Kuang;Jianying Yu;Huaxin Chen;Z. Feng;Rui Li;Hui Yang
通讯作者：
D. Kuang;Jianying Yu;Huaxin Chen;Z. Feng;Rui Li;Hui Yang