Search results

Study on the Preparation and Performance of Carboxymethyl Chitosan Calcium and Carboxymethyl Chitosan Zinc Composite Materials Jing Li1,a, Chang-Ping Wei1,b, Feng-Ming Wang1, Li-Dan Dong1, Shuang Sun1 and Qin-Yi Liu2,c 1School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China 2the second Hospital of Jilin University, Changchun 130022, China a245711992@qq.com, bchangpingwei@hotmail.com, c1226527208@qq.com Keywords: carboxymethyl chitosan, complex substance, preparation, performance research Abstract.
Materials and preparation Raw material.
Filtering materials,Residue was soaked,washed and filtered with 40 ml 80% methanol aqueous solution.Then Residue was soaked,washed and filtered with 40 ml ethanol, drying for three hours, set at a temperature of 75 ℃ In the constant temperature drying oven. carboxymethyl chitosan was obtained.
Thavomyutikam: Joumal of Applied Polymer Science, Vol.102(2006)No.1,p.445
Yu: Journal of Qingdao University(Natural Science Edition),Vol.16 (2001) No.1, p.20.

Raw Materials and Test Methods Main Raw Materials.
Sun, et al, Research status and development trend of flame-retardant asphalt at home and abroad, Journal of Chang’an university (Natural Science Edition), 6 (2012) 1-10
Li, Limit oxygen index evaluation method and performance of fire-retardant asphalt, Journal of Building Materials, 4 (2008) 431-434
Chen, Study on flame retardancy and smoke suppression and road performance of flame retardant asphalt mixture, Journal of Building Materials, 5 (2012) 648-653
Li, Combustion Performance Evaluation of Polymer Materials Fire, Chemical Industry Press, Beijing, 2007.

Journal of Materials Science: Materials in Medicine 21(4): 1109-1120
Dental Materials, 2008. 24(3): p. 299-307
Journal of Materials Science: Materials in Medicine 16(4): 341-345
Journal of Materials Science Letters, 2001. 20(18): p. 1719-1722
Materials Science and Engineering: C, 2002. 20(1-2): p. 187-193

Green building materials in the industry is also known as natural building materials, construction materials and environmental health building materials.
Green building materials in the industry also known as natural building materials, construction materials and environmental health building materials.
Green building materials by Zigbee of Wireless sensor network diagram The proportion of new wall materials in wall materials in total increased from 6.52% to 22.2%.
Green building materials with high science and technology content, price is higher than that of the general materials often used, restriction on market promotion; construction technology, materials technology, detection means there is no specification limits, the quality of some products is not stable; sustainable green building materials product serration, matching degree is not high, the promotion application is subject to many constraints.
References [1] EGAN D, “The emergence of ZigBee in building automation and industrial control ”,Computing & Control engineering journal, 2005, 16(4-5)

The main ceramic materials are glass ceramics, spinel, alumina and zirconia.
Table 1 Materials used for the fabrication of endosseous dental implants [6] Types of biomaterials Implant material I.
Polymeric materials presented in dentistry are of the acrylic resin type used in fingerprinting.
Swain, A Critical Review of Dental Implant Materials with an Emphasis on Titanium versus Zirconia, Materials (Basel). 8 (2015) 932-958
Kazazoglu, Zirconia Dental Implants, Journal of Oral Implantology.

Materials.
In this study the linking materials are one system of warp yarns。
The materials are Technical polyester filaments.
The Fig.2 shows that the linking materials were consolidated by resin.
The materials are glass filaments.

Dissolution concentrations in typical normal workpice materials of PCBN tool material at different temperature are then calculated.
The machining tests were performed on workpiece materials in Table 1-4.
Zhang, C: International Journal of Machine Tools and Manufacture.
Vleugels: Diamond and Related Materials.
Mathew: Journal of Materials Processing Technology.

All of sponge material used in the experiment is produced by Hengye Furniture Materials Factory of Huadu District in Guangzhou, China.
(3) The experimental materials selected in this study have good force transmission characteristics, which can help us to further research the buffer material for hip protector use
Shuai: Science & Technology Information, Vol.10 (2009) No.26, pp.310-311 (In Chinese)
Parrkkari, et al: The New England Journal of Medicine, Vol.343 (2000) No.21, pp. 1506-1513
Li: The Journal of Traditional Chinese Orthopedics and Traumatology, Vol. 20 (2008) No.9, pp. 22 (In Chinese)

Balázs1,b 1Construction Materials Department, Budapest University of Technology and Economics, Budapest, Hungary.
Table 2 Summary of properties and effect of replacement materials.
Zhang, “Cement-based composite materials,” in Composite Materials Engineering, vol. 2, Springer Singapore, 2017, pp. 489–529. doi: 10.1007/978-981-10-5690-1_4
Čechmánek, “Influence of fibre type and fibre volume fraction on dynamic properties of slurry infiltrated fibre concrete,” in Materials Science Forum, Trans Tech Publications Ltd, 2016, pp. 135–140. doi: 10.4028/www.scientific.net/MSF.865.135
Yalçınkaya, “The effect of metakaolin and end type of steel fiber on fiber-SIFCON matrix bond characteristics,” Usak University Journal of Material Sciences, vol. 3, no. 1, pp. 97–97, Jun. 2014, doi: 10.12748/uujms.201416504

The Boundary Element Method (BEM) is one among the most popular simulation techniques employed to simulate mechanical behaviour of materials, including smart engineering materials.
Introduction The Boundary Element Method (BEM) [3-7] is a numerical technique that is quite popular when it comes to simulating the mechanical behaviour of materials, including smart materials.
The analytical formulae used here are the same as the ones that can be found in any book on the ‘mechanics of materials’ (also known as ‘strength of materials’ or ‘engineering mechanics’) or any design data handbook.
[2] Kirana Kumara P, Simulation of Mechanical Behaviour of Materials using Constant Boundary Elements - A Discussion on the Accuracy of Results for Bars, to be published in this journal, 2020
[4] Ang K.C., Introducing the Boundary Element Method with MATLAB, International Journal of Mathematical Education in Science and Technology, Vol. 39, No. 4, pp. 505-519, 2008