Shaanxi University of Science and Technology

Zhaoqing Lu

Li Hua

Songfeng E

Fengfeng Jia

Nan Li

Jingyi Nie

Lianmeng Si

Danni Wang

Yuanqing Liu

Doudou Ning

Jiayue Dong

Yafang Wang

Bo Geng

Shanshan Chen

The disclosure relates to resource recycling, and more particularly to a green and efficient method for recycling waste aramid-mica composite paper. The method includes: dissolution of aramid-mica composite paper scraps, separation of mica flakes; phase separation, filtration, recycling of organic solvent and collection of aramid fiber.

Method for recycling waste aramid-mica composite paper

An aramid-mica composite insulating nanopaper and a preparation method thereof are disclosed. A mixture of mica and urea is subjected to a solid-phase ball milling, to obtain nano mica modified with amino groups on the surface, which is then assembled with the aramid nanofiber by stepwise suction filtration according to the present disclosure, to form an ordered nanopaper, thereby obtaining an aramid-mica composite insulating nanopaper with ultra-high insulation performances.

Aramid-mica composite insulating nanopaper and preparation method thereof

The disclosure discloses nano TiO-doped anti-ultraviolet para-aramid nano paper and a preparation method thereof. First, nano TiOis selected as an ultraviolet absorbent which has a good absorption effect on ultraviolet rays, and the anti-ultraviolet characteristic of aramid paper-based material can be well improved through addition of nano TiO. Second, macroscopic para-aramid fiber is dissolved under the action of a DMSO/KOH system, and the surface of the prepared aramid nano fiber is rich in C&#x2550;O and N&#x2014;H. This method is simple in process and does not harm the fiber itself, and can effectively improve the mechanical strength, interface binding performance and processability of a base material. The nano TiO-doped anti-ultraviolet para-aramid nano paper prepared by the disclosure is simple in preparation process, excellent in material property.

Nano TiO2-doped anti-ultraviolet para-aramid nano paper and preparation method thereof

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Xi'an, China

Zhaoqing Lu