Search results

Modified montmorillonite is a multifunctional material[1-3].
Experimental Materials.
XRD patterns of the studied materials are displayed in Fig.1.
G, et al.: Journal of Colloid and Interface Science Vol.335 (2009), p, 77 [3] A.
Surpateanu: European Polymer Journal Vol. 38 (2002), p.615

Horizontal Well of Shale Gas Complex Fracturing Casing Failure Mechanism Yang Shangyu1,2,3,a*, Wang Jianjun1,2,3, Liu Guangxi4 and Han Lihong1,2,3,b* 1State key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi’an, Shaanxi, 710077 2Shaanxi key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Xi’an, Shaanxi, 710077 3Key Laboratory of Petroleum Tubular Goods Engineering, CNPC, Xi’an, Shaanxi, 710077 4CNPC Xinjiang oilfield heavy oil production company, Karamay, Xinjiang 834000, China ashangyuy@163.com, bhanlihong@cnpc.com.cn Keywords: shale gas well; complex fracturing; casing formation; failure mechanism Abstract.
Journal of Natural Gas Science and Engineering, 2015, 25: 159-165
Journal of Petroleum Science and Engineering, 2017, 150: 22-29
Journal of the university of petroleum, 1995, 19(1): 24-35
Journal of china university of petroleum, 2010, 34(5): 126-130

SANS is extensively applied for static and dynamic-structural analyses in materials science and biology fields such as in metallurgies, ceramics, polymers, colloids, vesicles, viruses, etc. [4] because of its powerful and non-destructive technique to investigate a structural properties [5] and inhomogeneity patterns in materials for scale range of 1-100 nm [6].
EXPERIMENTAL Zinc acetate (Zn (CH3COO) 2. 2H2O), ethanol, and diethanolamine (DEA) were used as starting materials. 0.5 M Zn2+ solution was prepared by dissolving zinc acetate in 35 ml of ethanol.
Suib, Chemisty of Material 21 (2009), 2875–2885
Mazumder, Journal of Alloys and Compounds 397 (2005), 300-305
Journal of Alloys and Compounds 26 (2002) 236–241 [7] E.

Adsorption Behavior of Polycarboxylate Superplasticizer on Cement Particles Z.K LI1,2, J.H PENG1 1College of Materials Science and Engineering of Chongqing University,S.Z.Str.147, Chongqing, 400030,China 2Chongqing Research Institute of Building Science, R.H.Str.31, Chongqing, 400020, China Keywords: Polycarboxylate superplasticizer; adsorption; mechanism; cement Abstract: In this paper, the adsorption behavior of polycarboxylate superplasticizer (PC) on cement was examined.
Materials and Experiments 2.1 Materials 2.1.1 Cement.
P.O 42.5 ordinary Portland cement, specific surface area is 340m2/kg, apparent density is 3.1 g/cm3. 2.1.2 Raw materials for the preparation of PC.
Journal of Applied Polymer Science, in press
Effect of a carboxylic acid/sulfonic acid copolymer on the material properties of cementitious materials [J].

Journal of Materials Science and Engineering, 2003,21: 430-435 [2] V.M.Malhotra, P.K.Mehta.
Journal of Hazardous Materials, 2007,139：506-513 [4] Van Jaarsveld J G S, van Deventer J G J,Lukey G C.
The characterization of source materials in fly ash-based geopolymers.
Materials Letters, 2003, 57: 1272-1280 [5] Djwantoro Hardjito, Dody M.
ACI Materials Journal, 2004,101(6), November-December [6] Letizia Verdolotti, Salvatore Lannace,Marino Lavorgna, Taffacle Lamanna.

The formation of fibrillar protein aggregates has close relationship with material composition and formation conditions.
Materials and Methods Materials.
Tong: Inner Mongolia Agricultural Science and Technology Vol. 2 (2007), p. 92 ”In Chinese” [12] C.
Mark: Biophysical Journal Vol. 96 (2009), p.5013 [15] B.I.
Sava: Journal of Dairy Science Vol. 88 (2005), p. 1646 [21] D.M.

The current research on the saturated porous media wave problems mainly focus on the geometric characteristics of geotechnical materials infinite half space domain or a layer of finite thickness, and on the research of all kinds of fluid saturated porous material fluid solid coupling dynamic static response is far behind the development of single-phase continuum elastic mechanics.
,was the dynamic permeability.andwere the Biot parameters of the two-phase material compressibility.
References [1] Gajo A, Mongiovi L.: International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, Vol. 3 (1996), p. 399-413 [2] Yang X , Pan Y. : Applied Mathematics and Mechanics, Vol. 2 (2010), p. 193-204 [3] Zienkiewicz O C, Shiomi T.
[5] De Boer R, Liu Z F.: International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts.
Vol. 32 (1995), p. 378-378 [6] Polenov V S, Chigarev A V.: Journal of Applied Mathematics and Mechanics.

Acknowledgements Supported by the Natural Science Foundation of China (41072207) is gratefully acknowledged.
Brignoli: International Journal of Rock Mechanics and Mining Sciences, 1998,36 (1999):127-138
[2] Yongsheng Li, Caichu Xia: International Journal of Rock Mechanics and Mining Sciences, 1999,37(2000):467-475
Debicki: Construction and Building Materials, 24 (2010) 1232–1238
[9] HU Bin, FENG Xia-ting: Chinese Journal of Rock Mechanics and Engineering, 2005, 24(17):3064-3070.

After the freezing of the materials, adsorbent will adsorb water vapor, which can play the effect of atmospheric freeze drying.
The adsorbent absorbs the moisture under the condition of low temperature and normal pressure, which makes the materials dry.
Journal of Solar Energy, 2002, 23(2):171-174
Journal of Tianjin University.2003, 36(3):387-390
Beijing: Science Press, 2005

The mechanical properties of the materials are presented in Table 1.
Mayo, “Finite element analysis of the human mastication cycle,” Journal of the Mechanical Behavior of Biomedical Materials, vol. 41, pp. 23–35, 2015
Journal of Applied Sciences, 6(1), 183-189.
Journal of Applied Sciences, 7: 349-355
Journal of Applied Sciences, 7: 1748-1754.