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Poly(vinylidene fluoride) (PVDF) membrane preparation with an ionic liquid via thermally induced phase separation melt technology Zhen Liu1, 2,a, Daobao Sun1, 2,b,Wenyang Dong1, 2,c,Shuanhu Feng1, 2,d , Changfa Xiao1, 2,e, Yufeng Zhang1, 2,f, and Junfu Wei1,g 1School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin , China 2State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin , China apoly1122@sina.com, bsun.dao.bao@163.com, c732891761@qq.com, d1271034519@qq.com,ecfxiao@tjpu.edu.cn,fzyf9182@tjpu.edu.cn, gjfwei@tjpu.edu.cn Keywords: Poly(vinylidene fluoride) (PVDF) flat sheet membrane; thermally induced phase separation (TIPS) melt technology; ionic liquid Abstract.
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When the cement content less than 5%, the strength of the stabilized materials change not obviously, when the cement content is more than 7%, the strength of the stabilized materials grow rapidly.
Therefore, in order to obtain higher strength of stabilized materials, we suggested that the cement content should not be less than 5% when we use cement as inorganic gelled materials and stabilized tailings in the project.
In the project, we can consider that the complex stress state of stable materials can effect on materials’ mechanical property.
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For this device, the shell materials are used to be shaped materials and multiple shaped ring is designed on the circular tube.
Fig.4 Experiment result of first witness plate for radial shaped charge Borehole blasting experiment Materials and design In this experimental, cylindrical copper pipe is used as cartridge case, the length and external diameter of the copper pipe are especially 320mm and 16mm, and the thickness of the shell is 1mm.
Acknowledge: This work was supported by the National Fund of Nature Science of China.
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Materials and Methods Materials.
All materials used were of analytical grade.
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