Method for preparing photo-thermal fibers through microfluid air jet spinning

A photothermal fiber and microfluidic technology, applied in fiber processing, textile and papermaking, filament/thread forming, etc., can solve the problems of only 60% photothermal conversion efficiency, cumbersome preparation process, low safety factor, etc. Excellent evaporation performance, simple synthesis method, green material effect
CN112853511AInactive Publication Date: 2021-05-28NANJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF TECH
Publication Date
2021-05-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing photo-thermal fibers through microfluid air jet spinning. The method is characterized by comprising the following steps of dissolving a polymer in a solvent, preparing a uniform solution, transferring the uniform solution into a needle tube, performing microfluid air jet spinning to prepare fibers, and performing in-situ polymerization of a photo-thermal material to obtain the photo-thermal fibers, so that the photo-thermal performance of the fibers can be greatly improved, and the water evaporation rate and the photo-thermal conversion efficiency can be increased. In the spinning reaction process, an external heat source is not needed to maintain polymerization of the whole system, controllability is achieved, the spinning reaction time is relatively short, energy is saved, and pollution is avoided; and through in-situ synthesis, a stable and efficient method is provided for rapid preparation of the photo-thermal fibers, and the method has industrialization prospects.
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Description

Technical field

[0001] The present invention relates to the field of solar thermal conversion, and a method of preparing a functional polymer fiber is designed, and a method of preparing a photothermal fiber is prepared by a microfibody spun wire.Background technique

[0002] Solar resources are rich in renewable energy. The energy of solar energy reaching the earth in the year is twice the sum of non-renewable resources such as coal, petroleum, natural gas and uranium such as coal, oil, natural gas and uranium. The development and utilization of solar energy has also become an important part of human use energy, and it is constantly developing. Solar photothermal conversion technology has become one of the research hotspots in the field of solar utilization due to its high transformation speed, high efficiency, low cost, etc., has been widely used in seawater, sewage purification, sterilization, and power generation. The photothermal material as a medium of solar energy and thermal energ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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