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As the basis materials of hydrogel, its direct interaction objects are H2O molecules, and H2O is the main content of hydrogel, thereby the study on diffusion behavior of H2O molecules in basis materials is extremely important for hydrogel system.
The polymer chains were built with the Visualizer module in Materials Studio v5.5 (Accelrys, San Diego, CA).
Journal of Huaqiao University (Natural Science), 2010, 31(1): 41-48
Computational Materials Science, 2010, 49(1): S65-S69
Journal of Membrane Science, 2010, 348(1-2): 204-212

Volkova: Journal of Magnetism and Magnetic Materials, Vol.252 (2002), pp.224-228
Zhang: Materials Science Forum, Vols.532-533 (2006), pp.145-148
Gao: International Journal of Materials and Product Technology, in press
Park: Journal of Colloid and Interface Science, Vol.240 (2001), pp.349-354
Zhao: Optical Materials, Vol.22 (2003), pp.39-44.

Therefore, in this paper, the experiment of new polishing technology is described as using self–made nano-polishing wheel without abrasive to polish widely used metal materials in industry: hardened steel 45, YG6 horniness alloy and LY12 aluminum alloy on high precision polishing machine.
Experiment parameters: spindle rotary speed 200-400 r/min, pressure 0.1-0.5 Mpa; sample materials: hardened-steel 45, YG6 horniness alloy , LY12 aluminum alloy , dimension: hardened-steel 45 � 10×5 mm2 (dia.
Acknowledgements This project is supported by National Natural Science Foundation of China and Provincial Natural Science Foundation of Jilin.
Shi: Material Science Base (Mechanic Industry Press, China 1999).
Feng: Metal Physics (Science Press, China 2000).

Magnetron sputtering metallic or non-metallic materials on epoxy resin coating surface can effectively reduce the friction, improve the wear resistance and inhibit the abrasion, loss and so on.
Experiments Materials.
Table 1 Experimental parameters of sputtering different materials Sputtering material Sputtering way Electric Current [A] Voltage [V] Power [W] Time [min] Ti DC 0.1 320 32 300 C DC 0.1 420 42 300 Ti+C DC 0.1/0.1 320/420 74 300 Wear experiment.
References [1] Ping Yu, Xueyong Ren, et al: Journal of Guizhou University (Natural Sciences), vol.24 (2007), p.68-70, in Chinese [2] Qiaohua Feng, Yunbo Shi, et al: Science Information, No.2 (2007), p. 15, in Chinese [3] Xiaojing Xu, Liucheng Zhuo, et al: Tribology, Vol. 29 (2009), p. 256-259, in Chinese [4]Shihong Zhang, Yinsheng He, Mingxi Li, Yizhu He, Sikchol Kwon, et al: Thin Solid Films, Vol. 518 (2010), p. 5227-5232 [5] Weifeng Yang, Zhengyun Wu, et al: Applied Surface Science, vol. 256 (2010), p.7591-7595 [6] Jyh-Wei Lee, et al: Surface & Coatings Technology, Vol.200 (2006), p, 3330-3335 [7] Isaiah D.
Kellogg, et al: Journal of Power Sources, Vol. 195(2010), p. 7238-7242 [8] K.S.

Materials Science and Engineering A, Vol. 302 (2001), p. 37 [2] A.A.
Materials Science Forum, Vol. 419-422 (2003), p. 57 [3] Z.H.
Frontier Materials Science of China, Vol. 2 (2008), p. 1 [4] D.
Journal of Materials Science, Vol. 43 (2008), p. 6952 [6] M.
Materials Science and Engineering A, Vol. 319-321 (2001), p. 751 [7] M.

Experimental Materials and Preparation.
Xu: Journal of Materials Science, vol. 41 (2006), p. 417-421 [5] P.
Kouloumbi: Journal of Materials Science, vol. 33 (1998), p. 2027-2037 [7] L.
Ansari: Journal of Materials Science: Materials in Electronics, vol. 32 (2021), p. 5908-5919 [8] M.
Papet: Materials Chemistry and Physics, vol. 117 (2009), p. 169-172

The properties of materials at this scale can be very different from conventional materials.
Most of the current applications of nanotechnology are in electronics, automation, super-materials, or life sciences such as pharmaceuticals and medicine.
McClements, Functional materials in food nanotechnology.
Journal of Food Science 71(2006) R107-R116
Nature Materials, 3 (2004) 38-42

Study on Effect of Different Preparation Process Parameters on Properties and Microstructure of SiO2/Cu Composites Cuihua Zheng 1,2,a, Kexing Song 1,2,b , Xiuhua Guo 3,2,c , Yanjun Zhou 1,2,d, 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China 2Henan Key Laboratory of Advanced Non-ferrous Metals, Luoyang 471003, China 3School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China azhengch74@163.com,bkxsong@mail.haust.edu.cn, c guoxiuhua@sina.com, ddazhou456@163.com Keywords: Powder metallurgy; SiO2 nanoparticle; Conductivitity rate; Hardness; Wear behavior Abstract.
When porcelain body of composite materials was sintered, copper matrix and enhance phase nanoparticles does not react.
So as to improve the wrong strength and hardness of the composite materials.
Lee, ect., Metallurgical and Materials Transactions A Vol. 35(2004), p.493-502 [2] M.
,Transactions of Materials and Heat Treatment Vol. 28 (2007), p.10-16, In Chinese [6] L.

One of these materials is cutting ceramic.
International Journal Machining and Machinability of Materials, INDERSCENCE Publisher, Vol.5, No.4, 2009, 383-400 p
Applied Mechanics and Materials, Vol.39, 369-374 p
In: Advanced Materials Research.
In: Key Engineering Materials.

The principle of the choice of materials depends on the task.
So, for example, compositions based on mineral raw materials are known.
Series: Earth and Environmental Science, 87.8 (2017) 082047
Gabarrell, Environmental assessment of façade-building systems and thermal insulation materials for different climatic conditions Journal of Cleaner Production, 113 (2015) 102-113
Zhang, Novel application of glass fibers recovered from waste printed circuit boards as sound and thermal insulation material Journal of materials engineering and performance, 22.10 (2013) 3140-3146