Zhejiang University

Daliang Guo

Huifang Zhao

Jing Li

Xin Zhang

Bei Liu

Zhiyuan Tu

Yahui Meng

Shouyi Han

Yuechen Zhou

Chian Fang

Lizheng Sha

Gaorong Hu

Yinchao Xu

Qianyu Sun

Yike Huang

Tianzhong Yuan

Liangyu Huang

Ziyang Chang

Disclosed is a preparation method of double-layer carbon-paper base paper with high uniformity and gradient pores, including adding carbon fibers to alkali lignin aqueous solution for treatment, controlling the alkali lignin aqueous solution to reach subcritical water conditions, and modifying the carbon fibers by sodium phenol reactive groups under the subcritical water conditions of the alkali lignin, for improving hydrophilic groups on a surface of the carbon fibers and a surface rough structure; further, modifying the carbon fibers to produce carbon nanotube clusters on the surface of the carbon fibers to obtain surface-thermally-modified carbon fibers, and adding the surface-thermally-modified carbon fibers to a dispersant for dispersion, stirring together with auxiliary materials to prepare a mixed slurry, and preparing the mixed slurry into the carbon-paper base paper by wet forming process.

Preparation method of double-layer carbon-paper base paper with high uniformity and gradient pores

Disclosed is an environmentally-friendly method for enhancing mechanical properties of a high antibacterial nano dialysis paper for medical protection, includes following steps: a, preparing pulp components, and taking 40-60 parts of hardwood pulp, 10-20 parts of polyvinyl alcohol fiber, 30-50 parts of softwood pulp, 10-20 parts of cellulose fiber by mass; b, putting the hardwood pulp, the polyvinyl alcohol fiber, the softwood pulp and the cellulose fiber into a beater for beating to make a pulp, and then adding modified chitosan accounting for 1-5% of a weight of the pulp into the pulp, and defibering for 10-20 minutes at a rotating speed of 1500-2000 revolutions per minute in a defibrator; and c, carrying out papermaking with the pulp after defibering to form a dialysis paper finished product.

Environmentally-friendly method for enhancing mechanical properties of high antibacterial nano dialysis paper for medical protection

Growing community of inventors

Hangzhou, China

Daliang Guo