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Study on Nanocomposite Membranes with Enhanced Performance for Forward Osmosis Ning MA1,a, Cao LIU1,b, Peijing WANG1,c and Chuyang TANG2,d 1Beijing Water Science and Technology Institute, Beijing 100048, China 2Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, China aningmabhri@gmail.com, blc@bwsti.com, cwpj@bwsti.com, dtangc@hku.hk Keywords: Nanocomposite; Forward Osmosis; Zeolite Nanomaterials; Polyamide; Polysulfone Abstract: Nanocomposite membranes with enhanced performance were investigated for forward osmosis (FO) by incorporation of nanoporous materials.
Besides the optimization on the interfacial polymerization of the polyamide layer and phase inversion of the porous support layer, embedding porous materials in a polymeric matrix may significantly enhance membrane properties such as permeability, selectivity, stability, surface area, or catalytic activity in various membrane processes.
Mayes, Science and technology for water purification in the coming decades, Nature, 452 (2008) 301-310
Hoek, Using nanocomposite materials technology to understand and control reverse osmosis membrane compaction, Desalination, 261 (2010) 255-263
Fane, Coupled effects of internal concentration polarization and fouling on flux behavior of forward osmosis membranes during humic acid filtration, Journal of Membrane Science, 354 (2010) 123-133.

Abstract: The polyfunctional organic compounds 2- hydroxymethyl -1,4- butanediol (trihydric alcohol) and toluene diisocyanate -2, 4- diisocyanate (TDI) were taken as the raw materials in this study.
The cavities inside had good affinity for the polar materials Figure 3 Structural Diagram of Polyurethane Dendrimer The phase transfer properties of polyurethane dendrimers on methyl orange in aqueous solution were studied by UV-visible spectrophotometry [8]. 2．Experimental Materials and Instruments 2.1 Reagents 2- hydroxymethyl -1,4- butanediol (Lianyungang RECCO Biochemical Technology Co., Ltd., AR) TDI (toluene -2,4- diisocyanate, Ecco Reagent, AR), n-hexanol (Beijing Chemical Reagent Company, AR), methyl orange (Beijing Chemical Reagent Company, AR), toluene (Beijing Chemical Reagent Company, AR), di-n-butylamine (Beijing Chemical Reagent Company, AR). 2.2 Instruments SP-752 UV-visible spectrophotometer (Shanghai Spectrum Instrument Co., Ltd.), AUX220 electronic analytical balance (Shimadzu, Japan), YPS57- ultrasonic cavitation system (Hangzhou Success Ultrasonic Equipment Co., Ltd.), Vector 33 Fourier transform infrared spectrophotometer (BRUKBR, German). 3．Experimental
Journal of Radiation Research and Radiation Processing, 1998, (8):180-184 [6] Huang Jingqin, Tian He.
Polyurethane Synthetic Material.
Jiangsu Science and Technology Press. 2002 (2):55, 59-60

Introduction Shape memory polymers (SMPs) are a class of activated materials that posses two shapes the permanent shape and temporary shape.
Liu, et al., "Review of progress in shape-memory polymers," Journal of Material Chemistry, vol. 17, (2007) 1543–1558
Koerner, et al., "Remotely actuated polymer nanocomposites—stress-recovery of carbon-nanotube-filled thermoplastic elastomers," Nature Materials, vol. 3, (2004) 115–120
Tobushi, et al., "Shape recovery and irrecoverable strain control in polyurethane shape-memory polymer," Science and Technology of Advanced Materials, vol. 9, 2008
Drobez, et al., "A new active composite," Smart Materials and Structures, vol. 18, (2009) 025020

Introduction The three-dimensional grain mapping techniques for polycrystalline materials has received considerable attention.
Materials and specimens.
The shape and location of grain for both materials could be determined by three-dimensional mapping technique using the apparatus in BL19B2 bending beam line.
Cohen, Material Science and Engineering, 36 , issue 2, 1978, 207-215
Nakai, Evaluation of Fatigue Damage and Fatigue Crack Initiation Process by Means of Atomic-Force Microscopy, Materials Science Research International, 7, No. 2, 2001, 73-81.

In this work, the solidification of Cs/Sr was investigated based on the material ZSM-5 NaY sieve.
The resultant material was evaporated and dried at 120 for 3 hours.
These materials were labeled respectively as ZCs-65, ZCsSr-65, ZSr-65, HZCsSr-65; ZCs-7, ZCsSr-7, ZSr-7, HZCsSr-75; ZCs-85, ZCsSr-85, ZSr-85, HZCsSr-85; ZCs-95, ZCsSr-95, ZSr-95, HZCsSr-95; ZCs-105, ZCsSr-105, ZSr-105, HZCsSr-105, ZSM-105.
Journal of materials science, 1997, 32(22): 5851-5887

Letters on Materials 1(2), 78 (2011) (in Russian) [3] D.K.
Dmitriev, Journal of Experimental and Theoretical Physics 119, 766 (2014)
Kistanov, Fundamentalnye problem sovremennogo materialovedeniya [Fundamental problems of modern materials science],11(1), 9 (2014) (in Russian)
Letters on Materials 5(1), 11-14 (2015).

Effect of controlling of different crystallography form of hematite on the oxidation of phenol by Fenton-like reagent Xingfei Guo1, 2, a, Hongwei Zhang1, b, *, Cong Ma1, Xu Han1, Yuzhi Chen1, Jingchen Wang1 1School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300387, China 2State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China aemail: feifei_0630@sina.com, bemail: zhanghw@tjpu.edu.cn * Corresponding author: Hongwei Zhang Keywords: Fenton-like Reagent; Hematite; Phenol; Degradation Abstract.
Materials All the reagents were analytical grade and were purchased from Tianjin Bei Fang chemical Co.
Acknowledgement In this paper, the research was supported by the National Natural Science Foundation of China (51308390).
Materials Letters [J]. 2011, 65: 1911-1914 [8] M.
Journal of Alloys and Compounds. 2011, 28: 7639-7644

Introduction Development of materials suitable for VIS-transparent immersion media with a high refractive index is an actual applied and a complicated scientific and technical problem.
Such materials are mainly required for geological investigation of minerals (hereinafter referred to as objects) and the evaluation of inner defects of natural diamonds and other VIS-transparent high-refractive objects.
To date, the number of VIS-transparent materials with a refraction index close to 2.41 has been considerably limited.
Journal of Non-Crystalline Solids. 1995.
ELSEVIER SCIENCE Ltd.

The epoxy concrete with high strength,impact strength, good resistance to chemical corrosion, wear-resistant, water-resistant and frost resistance, and high bond strength of metal and non-metallic materials, electrical insulation, makes up the concrete tensile strength and low tensile strain, crack resistance and brittleness, cured epoxy concrete atmosphere, moisture, chemical media, bacteria have a strong resistance to the study of the performance of the modified polymer mortar.
Experimental section Experimental materials.
Acknowledgements This work was financially supported by the Youth Science and Technology Development Fund of Jilin Architectural and Civil Engineering Institute.
Preparation and properties of a new composite of epoxy emulsion (EEM) modified cement , Journal of wuhan University of Technology，2009(10),p.843-845
Study on the Material of Epoxy Resin Concrete Modified and Its Application,Proceedings of the 6th Asian Symposium on Polymers in Concrete. 2009(10), p.447-452

The graded gravel stone is the main material of subgrade bed surface layer,which determines the frost heave of subgrade.
Tests materials Graded Gravel.The graded gravel selected for the tests is fresh and slightly weathered hard sandstone,which is massive and sharp, physical properties of graded gravel in natural condition is shown in table 1: Tab.1 The physical index of graded gravel Maximum particle size/(mm) Maximum dry density ρdmax/(g.cm-3) Dry density ρd/(g/cm3) Water content w0/(%) 45 2.24 2.14 2.7～3.2 Fig.1 The grain size distribution curve of graded gravel Grouting Material.When considering the liquidity and irrigation of slurry,the slurryc omposition and mixture ratio is:liquid A:rubber powder:liquid B:resin 305:power C=100∶5∶3∶1∶3.The technical index of grouting material is shown in table 2: Table 2 The technical index of grouting material Dendity ρ/(g/cm3) Viscosity /(MPa.s) Solidification time/(h) Curing compressive strength/(MPa) 1.12 2.50 3～5 0.25 The test model and model filling The model’s length,width, high is 350cm,60cm,70cm respectively
Chinese Journal of Rock Mechanicals and Engineering，2002，21(7)：1099-1103
Cold Regions Science and Technology. 2009，58 (3)：130-135.