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Introduction Polyurethane materials have been generally used in the automobile, paint, furniture, and textile industries and also in biomass foam incorporated with renewable raw materials[1~3].Waterborne polyurethanes(WPU), as non-toxic and non-flammable materials, have been abundantly used as environmental friendly coating and adhesives show an excellent range of properties[4].However, under solid content remaining unchanged, drying rate of waterborne polyurethanes(WPU) is slower than that of solvent-based polyurethanes due to latent heat of evaporation of water is higher than one of organic solvent,which can not meet fast-paced modern production line of requirement.
Experimental Materials The diisocyanate used was toluene diisocyanate (IPDI, 98% purity, supplied by Shanghai Chemical Co.
;Yu,X.W.Journal of Polymer Materials Science and Engineering 2007,23 ,59
Journal of Chemistry and Bonding 2007,29 ,425
[6] Daewon Lee, Seung-Heon Lee, Sangcheol Kim..Journal of Polymer Science 2003,41,20

Numerical investigation for evaluation and prevention of casting defects in TiAl alloys Ildiko Peter1, a *, Mario Rosso1,b and Ilaria Forno1,c 1 Politecnico di Torino, Department of Applied Science and Technology Institute of Science & Engineering of Materials for the Innovative Technologies, Corso Duca degli Abruzzi 24, 10129 Torino, Italy aildiko.peter@polito.it, bmario.rosso@polito.it, cilaria.forno@polito.it Keywords: Ti-Al alloys, numerical investigation, casting defects.
For the calculation of the temperature field in the casting system, all the involved materials have to be appropriately described: i.e. density, specific heat capacity and thermal conductivity are required for all the thermally involved materials (metal alloy, mould and cores material).
Loretto (Eds.), Gamma Titanium Aluminides 1999, TheMinerals, Metals & Materials Society, Warrendale, PA, 1999, p. 3-8
[6] Dapeng Zhao, Keke Chang, Thomas Ebel, Ma Qian, Regine Willumeit, Ming Yan, Florian Pyczak, Microstructure and mechanical behavior of metal injection molded Ti–Nb binary alloys as biomedical material, Journal of the Mechanical Behavior of Biomedical Materials, Volume 28, 2013, p.171-182
Ghiban, Investigation on cobalt based alloy modified by titanium for dental application, Archives of Materials Science and Engineering Vol. 61, Issue 2, 2013, p. 62-68

The low degradation efficiencies in single and codoped TiO2 can be best explained by looking into the formation of crystal phases structures for both bare and metal-modified TiO2 materials.
Li, Synthesis and characterization of copper ions surface-doped titanium dioxide nanotubes, Materials Research Bulletin. 43 (2008) 1971–1981
Mohamed, An overview on the photocatalytic activity of nano-doped-TiO2 in the degradation of organic pollutant, Materials Science. 2011 (2011) 1-18
Bahnemann, Tailored titanium dioxide nanomaterials: anatase nanoparticles and brookite nanorods as highly active photocatalyst, Chemistry of Materials. 22 (2010) 2050-2060
Restrepo, Study of the bandgap of synthesized titanium dioxide nanoparticules using the sol-gel method and a hydrothermal treatment, The Open Materials Science Journal. 4 (2010) 9-14

The plant materials were collected in South China Botanical Garden in Chinese Academy of Sciences.
Qian:Advanced Materials Research.Vols 641-642 (2013),p.3-6
[4]K.J.Chen, G.Zhao,S.C.Wu,Q.C.Zhuang,F.Qian:submitted to Advanced Materials Research(2013)
Mei:Chinese Journal of Natural Medicines.Vol. 9,no.2(2011), p.112 -114.In Chinese [9]Y.
Ren , J.D.Liang, S.Q.Peng, J.F.Su : Chinese Journal of Pharmacology and Toxicology.

[2] Jacek Mucha: Materials & Design.
[3] Dezhi Li, Li Han and Martin Thornton: Materials and Design.
[4] Hongyan Duan; Gaokun Han and Mingxing Wang: Materials & Design.
[5] Chan-Joo Lee, Jung-Min Lee and Ho-Yeon Ryu: Journal of Materials Processing Technology.
Daidie: Journal of Materials Processing Technology.

The project supported by the National Natural Science Foundation:Research straightness control of deep hole processing technology based on multi-body system theory(51175482) and National and international cooperation: Cooperative research key technologies of sophisticated and efficient deep hole machining(2013DFA70770) 0 Introduction With the development of machinery industry and the market for the diversity demand of mechanical parts, deep hole processing technology as an important branch of equipment manufacturing technology faces the challenge of many varieties , small batch, new materials and higher and higher accuracy requirements.
[3] WANG E R，et al.Modeling the hysteretic characteristics of a magnetorheological fluid damper[J].Journal of Automobile Engineering,2003,217(D7):537-550
[5] Ni Y Q,Ko J M,Wong C W.Identification of non-linear hysteretic isolators from periodic vibration tests.Journal of Sound and Vibration,1998,217(4):737-176.

BS DB1 DB2 DB3 Diameter（mm） 20 22 24 27 Establishment of Finite-element Model Material Model.
Fig. 2(a) Ideal Elastic-Plastic Model Fig. 2(b) Triple-linear Model Table 4 Nature of High-Strength Blot Stress（Mpa） 995 1160 1160 Strain 0.00483 0.136 0.15 All the materials are isotropic and the Poisson ratio is 0.3 obeying the von.
Journal of Constructional Steel Research,1998,46(1-3): 435-436
Journal of Constructional Steel Research, 2002(58):995-1013
Journal of Southeast University (Natural Science Edition), 2004, 34(3): 375-378.

It is commonly used in research to determine the characteristics of materials.
The degradation temperature of materials and the levels of inorganic and organic components in materials can also be determined via TGA.
The three commercial materials were labelled “Commercial A”, “Commercial B” and “Commercial C”.
Journal of Applied Sciences, Vol. 5, 2005, pp. 104 – 107
Journal of Fire Sciences, Vol. 1, May – June 1983.

The two model parameters is for the material parameters cohesion, while is for angle of internal friction.
Fig. 1 Curve for test on tri-axial compression Fig. 2 Loading and unloading experimental curve Acknowledgment Financial support from China National Basic Research Program of (973 Program) (No. 2011CB013504) and China Natural Science Foundation (No. 11172090, 51109069, 51209075) is gratefully acknowledged.
Chinese Journal of Rock Mechanics and Engineering.
Vol. 32 (2011), p. 363-368+374 [6] Shao JF, Jia Y, Kondo D, et al: A coupled elastoplastic damage model for semi-brittle materials and extension to unsaturated conditions.
Mechanics of Materials.

With this method, the surfaces of difficult-to-machine metal materials can be abraded up to mirror-like surfaces.
This fact concludes that the magnetic-abrading process does not suit to abrading metal materials that cannot be magnetized.
Adaptability to the difficult-to-machine materials: The magnetic-abrading process relies on “soft brushes” made by free magnetic abrasives to abrade surfaces of the workpiece, and it is of low abrading efficiency for the materials of high toughness, high strength or high hardness.
In abrading difficult-to-machine materials, it is of high efficiency.
Shi: Journal of Materials Processing Technology Vol. 129 (2002), p. 310 [3] J.D.