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Title: Radiation shielding non-woven fabric and preparation method thereof
Other Titles: 一种辐射屏蔽非织布及其制备方法
Authors: Fei, B 
Li, JH 
Issue Date: 28-Oct-2015
Publisher: 中华人民共和国国家知识产权局
Source: 中国专利 ZL 201310537370.4 How to cite?
Abstract: The invention relates to radiation shielding non-woven fabric and a preparation method thereof. The radiation shielding non-woven fabric is prepared from the following components in percentage by weight: 1-10% of ammonium tungstate, 5-20% of polyacrylonitrile copolymer and 80-95% of DMF (N,N-dimethylformamide). The preparation method comprises the following steps: proportionally preparing raw materials, sequentially feeding the raw materials to obtain a light yellow transparent clear homogenous-phase mixed solution, debubbling by ultrasonic and standing to obtain a spinning solution, and carrying out electrostatic spinning treatment to obtain a nano or micro raw fabric; drying the raw fabric, and carrying out preoxidation on the dried raw fabric in the presence of air; and carbonizing the preoxidated raw fabric in a nitrogen atmosphere to obtain the radiation shielding non-woven fabric. The radiation shielding non-woven fabric has the properties of fiber substances and the radiation-resistant function of the metal tungsten, and can be prepared into products with different densities according to different proportions.
Rights: 专利权人: The Hong Kong Polytechnic University.
Appears in Collections:Patent

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