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Parametric study on seismic performance of self-centering reinforced concrete column with bottom-placed rubberlayer

Frontiers of Structural and Civil Engineering   Pages 1145-1162 doi: 10.1007/s11709-023-0945-2

Abstract: reinforced concrete (RC) moment-resisting frame structures, a novel self-centering RC column with a rubberlayer placed at the bottom (SRRC column) is proposed herein.For the column, the longitudinal reinforcement dissipates seismic energy, the rubber layer allows the

Keywords： seismic resilience     self-centering     rubber layer     flag-shaped hysteresis loop     parametric study    

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Evaluation of the compatibility between rubber and asphalt based on molecular dynamics simulation

Fucheng GUO, Jiupeng ZHANG, Jianzhong PEI, Weisi MA, Zhuang HU, Yongsheng GUAN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 435-445 doi: 10.1007/s11709-019-0603-x

Abstract: Using of rubber asphalt can both promote the recycling of waste tires and improve the performance ofStorage stability of asphalt and rubber is related to the compatibility and also influenced by rubbercompatibility between rubber and asphalt as well as the influence of rubber content on compatibility.between asphalt and cis-polybutadiene rubber (BR) is the best, followed by styrene-butadiene rubber(SBR), and natural rubber (NR) is the worst.

Keywords： rubber asphalt     compatibility     rubber content     molecular dynamics simulation    

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Using thermodynamic parameters to study self-healing and interface properties of crumb rubber modified

Dongliang HU, Jianzhong PEI, Rui LI, Jiupeng ZHANG, Yanshun JIA, Zepeng FAN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 109-122 doi: 10.1007/s11709-019-0579-6

Abstract: The thermodynamic property of asphalt binder is changed by the addition of crumb rubber, which in turnThis study investigated the self-healing and interface properties of crumb rubber modified asphalt (CRMAmolecular models of CRMA were built with representative structures of the virgin asphalt and the crumb rubberThe self-healing capability of CRMA is found to decrease as the rubber content increases.The asphalt-Al O interface with higher rubber content has stronger adhesion and moisture stability.

Keywords： crumb rubber modified asphalt     surface free energy     self-healing     interface properties     molecular dynamics    

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The Energy-saving Technology for Solution Polymerization of Synthetic Rubber and the Development of Eenergy-savingRubber

Cao Xianghong,Zhang Aimin

Strategic Study of CAE 2001, Volume 3, Issue 7,   Pages 59-63

Abstract:

The article summarized the energy-saving technology for solution polymerization of synthetic rubberand the development of the energy-saving rubber in Beijing Yanshan Petrochemical Co., Ltd.BYPC is now working on the direct devolatilization of the rubber solution and the gas phase polymerizationof Poly-butadiene rubber.development is also undergoing for new energy-saving synthetic rubbers such as SSBR, mid-vinl-polybutadiene rubber

Keywords： solution polymerization     synthetic rubber     energy-saving     energy-saving rubber    

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Aging properties and aging mechanism of activated waste rubber powder modified asphalt binder based on

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 625-636 doi: 10.1007/s11709-023-0938-1

Abstract: This study is performed to develop a novel pavement material using waste rubber powder, waste lubricatingSubsequently, the aging properties and aging mechanism of activated waste rubber powder modified asphaltThe rheological results show that, compared with waste rubber powder modified asphalt (RMA), ARMA offersmicro-characterization result shows that the aging of ARMA may be caused by the fact that LBP-activated waste rubber

Keywords： rubber powder modified asphalt     aging     mechanism     rheological     characterization    

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Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among

Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 4,   Pages 363-367 doi: 10.15302/J-FASE-2016122

Abstract: The lack of suitable early selection parameters means that traditional rubber breeding for yield is time-consumingLaticifer is a tissue specific for natural rubber biosynthesis and storage in rubber tree.The number of the secondary laticifers in the trunk bark tissues is positively correlated with rubberyield in the matured rubber trees that are regularly tapped.In the present study, the rubber yield from 280 of 4–5 year-old virgin trees from 7 cross combinations

Keywords： Hevea brasiliensis     rubber yield breeding     early evaluation     tapping     secondary laticifer differentiation    

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Study on the gas permeabilities in styrene-butadiene rubber by molecular dynamics simulation

Hailu LIU, Xuejia DING, Jun YI, Liqun ZHANG, Sizhu WU,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 257-262 doi: 10.1007/s11705-009-0270-x

Abstract: In this research, molecular dynamics (MD)simulations were used to study the transport properties of small gas molecules in the butadiene-styrene copolymer(SBR). The condensed-phase optimized molecular potentials for atomistic simulation studies (COMPASS) force field was applied. The diffusion coefficients were obtained from MD (NVT ensemble) and the relationship between gas permeability; the chemical structure and free volume of butadiene-styrene copolymer were investigated. The results indicated that the diffusion coefficient of oxygen declined with increasing styrene content. The fraction of free volume (FFV) in butadiene-styrene copolymer was calculated. It was concluded that diffusion coefficient increased as the FFV increases, which is in accordance with the analysis of the small molecular hop through the free volume in polymer matrix. Subsequently, the glass transition temperatures of these copolymers were calculated by MD. The result showed that the glass transition temperature increased with increasing styrene content in polymer.

Keywords： diffusion     atomistic simulation     permeability     chemical structure     relationship    

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The Progress on Chemistry and Technology of Synthetic Rubber in 20th Century

Wu Guanying

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 79-85

Abstract:

The present review is related to the progress of synthetic rubber industry in this century with specialemphasis on the synthetic chemistry, which is the theoretic ground of synthetic rubber.The progress of the corresponding technology for the manufacture of synthetic rubber will be the gas

Keywords： synthetic rubber     synthetic chemistry     living/controlled polymerization     gas phale polymerization process    

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The secondary laticifer differentiation in rubber tree is induced by trichostatin A, an inhibitor of

Shixin ZHANG,Shaohua WU,Weimin TIAN

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 4,   Pages 357-362 doi: 10.15302/J-FASE-2016125

Abstract: The secondary laticifer, a specific tissue in the secondary phloem of rubber tree, is differentiatedThe number of the secondary laticifer in the trunk bark of rubber tree is positively correlated withrubber yield.results suggest that histone acetylation is essential for the secondary laticifer differentiation in rubber

Keywords： Hevea brasiliensis     histone acetylation     laticifer differentiation     trichostatin     vascular cambia    

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Challenges and Development Strategies of China’s Natural Rubber

Huang Zongdao

Strategic Study of CAE 2001, Volume 3, Issue 2,   Pages 28-32

Abstract: founding of the People´s Republic of China in 1949 that China endeavored to expand its natural rubberBy 1998, the area under rubber had increased to 600, 000 ha, which was 214 times larger than that inThis made China one of the major natural rubber producing contries in the world, area ranking fourthwill rush Chinese rubber market, which will bring pinch to Chinese natural rubber industry.In this article, some suggestions for natural rubber development in China are proposed.

Keywords： natural rubber     WTO     tapping system    

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Current Status and Prospects of High-Performance Synthetic Rubber in China

Xu Lin, Zeng Benzhong, Wang Chao, Zhang Fubao

Strategic Study of CAE 2020, Volume 22, Issue 5,   Pages 128-136 doi: 10.15302/J-SSCAE-2020.05.012

Abstract:

 Synthetic rubber materials are widely used in industry, nationalHigh-performance and functional synthetic rubber is the key advanced base material necessary for therubber, branched butyl rubber, and functionalized thermoplastic elastomer, as well as special rubbermaterials such as hydrogenated nitrile rubber, thermoplastic vulcanized rubber, high-performance siliconerubber, and fluoroether rubber, thus to achieve high-end materials, green process, and intelligent production

Keywords： synthetic rubber，thermoplastic elastomer，special rubber material，development strategy    

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Viscoelasticity of Water-stop Rubber Based onThree-parametric Rheology Model

Liu Lihua,Xiong Wei,Zhang Hongzhi,Zhang Qingjiang

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 69-71

Abstract: text-align: justify;">This thesis provided the basic expression formula for viscoelasticity of water-stop rubber

Keywords： high-head gate     rubber     viscoelasticity     rheology    

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Chemically reactive solute transfer in a boundary layer slip flow along a stretching cylinder

Swati Mukhopadhyay

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 385-391 doi: 10.1007/s11705-011-1101-4

Abstract: distribution of a solute undergoing a first order chemical reaction in an axisymmetric laminar boundary layer

Keywords： boundary layer     stretching cylinder     partial slip     mass transfer     similarity solution    

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Study on thermal - oxidative ageing mechanismsof ZN- 1 damping rubber materials

Zhang Kai,Ma Yan,Tan Yun,Mei Jun

Strategic Study of CAE 2009, Volume 11, Issue 2,   Pages 48-52

Abstract:

The thermal- oxydative ageing properties of ZN-1 damping rubber materialsageing temperatures and ageing time and mechanical properties and damping properties of ZN-1 damping rubberresults showed that with increasing ageing temperature and time , the tensile strength of ZN-1 damping rubbermaterials firstly decreases to a certain value and then increases ; the tensile elongation of ZN-1 damping rubberFinally , the ageing mechanisms of ZN-1 damping rubber materials were deduced from some analyses of the

Keywords： ZN-1 damping rubber materials     ageing properties     microstructure     ageing mechanisms    

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Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 297-302 doi: 10.1007/s11705-011-1201-1

Abstract: A lattice model of the nanoscaled catalyst layer structure in proton exchange membrane fuel cells (PEMFCThe model takes into account all the four components in a typical PEMFC catalyst layer: platinum (Pt)Catalyst utilization in the modeled catalyst layer was calculated by counting up the number of facets

Keywords： catalyst layer     PEM fuel cell     lattice model     Monte Carlo method     catalyst utilization    

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Title Author Date Type Operation

Parametric study on seismic performance of self-centering reinforced concrete column with bottom-placed rubberlayer

Journal Article

Evaluation of the compatibility between rubber and asphalt based on molecular dynamics simulation

Fucheng GUO, Jiupeng ZHANG, Jianzhong PEI, Weisi MA, Zhuang HU, Yongsheng GUAN

Journal Article

Using thermodynamic parameters to study self-healing and interface properties of crumb rubber modified

Dongliang HU, Jianzhong PEI, Rui LI, Jiupeng ZHANG, Yanshun JIA, Zepeng FAN

Journal Article

The Energy-saving Technology for Solution Polymerization of Synthetic Rubber and the Development of Eenergy-savingRubber

Cao Xianghong,Zhang Aimin

Journal Article

Aging properties and aging mechanism of activated waste rubber powder modified asphalt binder based on

Journal Article

Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among

Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN

Journal Article

Study on the gas permeabilities in styrene-butadiene rubber by molecular dynamics simulation

Hailu LIU, Xuejia DING, Jun YI, Liqun ZHANG, Sizhu WU,

Journal Article

The Progress on Chemistry and Technology of Synthetic Rubber in 20th Century

Wu Guanying

Journal Article

The secondary laticifer differentiation in rubber tree is induced by trichostatin A, an inhibitor of

Shixin ZHANG,Shaohua WU,Weimin TIAN

Journal Article

Challenges and Development Strategies of China’s Natural Rubber

Huang Zongdao

Journal Article

Current Status and Prospects of High-Performance Synthetic Rubber in China

Xu Lin, Zeng Benzhong, Wang Chao, Zhang Fubao

Journal Article

Viscoelasticity of Water-stop Rubber Based onThree-parametric Rheology Model

Liu Lihua,Xiong Wei,Zhang Hongzhi,Zhang Qingjiang

Journal Article

Chemically reactive solute transfer in a boundary layer slip flow along a stretching cylinder

Swati Mukhopadhyay

Journal Article

Study on thermal - oxidative ageing mechanismsof ZN- 1 damping rubber materials

Zhang Kai,Ma Yan,Tan Yun,Mei Jun

Journal Article

Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Journal Article