scispace - formally typeset
Search or ask a question
Author

Yongjia Jiang

Bio: Yongjia Jiang is an academic researcher from Nanjing University. The author has contributed to research in topics: Epoxy & Medicine. The author has an hindex of 8, co-authored 9 publications receiving 203 citations.
Topics: Epoxy, Medicine, Gene, Asphalt, Thermosetting polymer

Papers
More filters
Journal ArticleDOI
Ya Liu1, Jing Zhang1, Yongjia Jiang1, Chenxuan Li1, Zhonghua Xi1, Jun Cai1, Hongfeng Xie1 
TL;DR: In this paper, an industrial SBS-modified asphalt (SBA) was used to prepare epoxy SBS modified asphalt (ESBA) and the morphology, rheological, thermal and mechanical properties of ESBA were characterized.

62 citations

Journal ArticleDOI
Yongjia Jiang1, Ya Liu1, Jie Gong1, Chenxuan Li1, Zhonghua Xi1, Jun Cai1, Hongfeng Xie1 
TL;DR: In this article, epoxy SBS-modified asphalts (ESBAs) were prepared with epoxy monomer, curing agent and SBS modified SBA with various styrene butadiene structures, which in turn were subjected to laser scanning confocal microscopy (LSCM), viscous measurements, thermal analysis and tensile tests.
Abstract: As the most important thermoplastic and thermosetting modifiers, styrene–butadiene–styrene triblock copolymer (SBS) and epoxy resin have been widely applied in asphalt modifications. In this paper, epoxy SBS-modified asphalts (ESBAs) were prepared with epoxy monomer, curing agent and SBS-modified asphalts (SBAs) with various styrene–butadiene structures, which in turn were subjected to laser scanning confocal microscopy (LSCM), viscous measurements, thermal analysis and tensile tests. The LSCM results revealed that both polymer-rich phase and fluorescent particle-rich phase were observed in the asphalt matrix. Moreover, the number of SBS particles in SBAs increased with the increase of styrene contents. The presence of SBS decreased the size of dispersed domains in the continuous epoxy phase of the neat epoxy asphalt binder (EAB). For ESBAs, a double phase separation occurred between SBA and epoxy in the continuous epoxy phase and between asphalt and SBS in the dispersed SBA phase. Both number and size of SBS domains in the dispersed SBA phase of ESBAs increased with the increase of styrene contents. The inclusion of styrenic polymers increased the viscosity of the neat EAB. The viscosity of ESBAs increased with the increase of average molecular weights of the styrenic polymers. The addition of styrenic polymers increased the glass transition temperature (Tg) and storage modulus (E′) of the neat EAB. Meanwhile, the inclusion of styrenic polymers weakened the damping properties of the neat EAB. The styrene-butadiene structures had little effect on the Tg and damping properties of ESBAs. The E′ of ESBAs decreased with the increase of styrene contents. The presence of SBS enhanced the thermal stability of the neat EAB. Tensile results showed that the addition of SBS increased the tensile strength of the neat EAB.

53 citations

Journal ArticleDOI
Yifan Sun1, Ya Liu1, Yongjia Jiang1, Ke Xu1, Zhonghua Xi1, Hongfeng Xie1 
TL;DR: Wang et al. as mentioned in this paper employed attapulgite (ATT), one kind of natural fibrous nanoclays, as the nanofiller to reinforce EAA.

48 citations

Journal ArticleDOI
Jie Gong1, Ya Liu1, Yongjia Jiang1, Qingjun Wang1, Zhonghua Xi1, Jun Cai1, Hongfeng Xie1 
TL;DR: Sasobit has been widely applied as warm-mix asphalt (WMA) additive in an environment friendly and energy saving pavement construction as mentioned in this paper, and has been extensively used on the pa...
Abstract: Sasobit has been widely applied as warm-mix asphalt (WMA) additive in an environment friendly and energy saving pavement construction. Epoxy asphalt (EA) has been extensively used on the pa...

41 citations

Journal ArticleDOI
Ru Chen1, Jie Gong1, Yongjia Jiang1, Qingjun Wang1, Zhonghua Xi1, Hongfeng Xie1 
TL;DR: In this article, halogen-free flame retardants were used to improve the fire retardancy of cold-mix epoxy asphalt binders (CEABs) in highway tunnels.

40 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: In this article, the authors presented a summary mainly about the chemistry of epoxy resins, the curing mechanism and properties of polypropylene epoxy materials covering epoxy asphalt, epoxy emulsified asphalt and epoxy concrete.

151 citations

Journal ArticleDOI
TL;DR: In this article, nano-organic palygorskite (O-PAL) was successfully prepared by acid activation and silane modification, together with styrene-butadiene-styrene block copolymer (SBS) modified asphalt, was prepared by melt blending.

65 citations

Journal ArticleDOI
Jie Gong1, Ya Liu1, Qingjun Wang1, Zhonghua Xi1, Jun Cai1, Guowei Ding1, Hongfeng Xie1 
TL;DR: In this paper, a mixture of epoxy oligomer and curing agent was incorporated into asphalt rubber to prepare epoxy asphalt rubber (EAR), and the effects of Sasobit on the rotational viscosity, glass transition temperature, damping performance, mechanical properties and phase-separated morphology of the neat EAR were investigated.

65 citations

Journal ArticleDOI
Chen Mingyuan1, Jiuguang Geng1, Caiyun Xia1, Leilei He1, Liu Zhuo1 
TL;DR: In this paper, the effects of SBS type and dosage, asphalt type, processing technology and environment on phase structure and separation are reviewed and the correlation between SBS modified asphalt and chemical composition, micromechanics, rheological properties, and other aspects are analyzed.

58 citations

Journal ArticleDOI
Yongjia Jiang1, Ya Liu1, Jie Gong1, Chenxuan Li1, Zhonghua Xi1, Jun Cai1, Hongfeng Xie1 
TL;DR: In this article, epoxy SBS-modified asphalts (ESBAs) were prepared with epoxy monomer, curing agent and SBS modified SBA with various styrene butadiene structures, which in turn were subjected to laser scanning confocal microscopy (LSCM), viscous measurements, thermal analysis and tensile tests.
Abstract: As the most important thermoplastic and thermosetting modifiers, styrene–butadiene–styrene triblock copolymer (SBS) and epoxy resin have been widely applied in asphalt modifications. In this paper, epoxy SBS-modified asphalts (ESBAs) were prepared with epoxy monomer, curing agent and SBS-modified asphalts (SBAs) with various styrene–butadiene structures, which in turn were subjected to laser scanning confocal microscopy (LSCM), viscous measurements, thermal analysis and tensile tests. The LSCM results revealed that both polymer-rich phase and fluorescent particle-rich phase were observed in the asphalt matrix. Moreover, the number of SBS particles in SBAs increased with the increase of styrene contents. The presence of SBS decreased the size of dispersed domains in the continuous epoxy phase of the neat epoxy asphalt binder (EAB). For ESBAs, a double phase separation occurred between SBA and epoxy in the continuous epoxy phase and between asphalt and SBS in the dispersed SBA phase. Both number and size of SBS domains in the dispersed SBA phase of ESBAs increased with the increase of styrene contents. The inclusion of styrenic polymers increased the viscosity of the neat EAB. The viscosity of ESBAs increased with the increase of average molecular weights of the styrenic polymers. The addition of styrenic polymers increased the glass transition temperature (Tg) and storage modulus (E′) of the neat EAB. Meanwhile, the inclusion of styrenic polymers weakened the damping properties of the neat EAB. The styrene-butadiene structures had little effect on the Tg and damping properties of ESBAs. The E′ of ESBAs decreased with the increase of styrene contents. The presence of SBS enhanced the thermal stability of the neat EAB. Tensile results showed that the addition of SBS increased the tensile strength of the neat EAB.

53 citations