Preparation method of temperature responsive fiber for window curtain

Abstract

The invention discloses a preparation method of a temperature responsive hollow fiber for a window curtain. The preparation method comprises the following steps: (1), adding PVDF (Polyvinylidene Fluoride) powder according to a proportion of 100g / L to 180g / L into an alkali solution, then adding anhydrous ethyl alcohol according to a proportion of 14ml / L to 45ml / L into the alkali solution and stirring the mixtureso as to enable the PVDF powder to be dispersed in the solution sufficiently, placing the mixed solution into a water bath with a constant temperature of 50 to 80 DEG C, carrying out suction filtration after the chemical substances react for 10-20 minutes, and putting the PVDF powder obtained after washing into an oven at a temperature of 60 DEG C for drying; (2), preparing thermosensitive copolymer: adding the PVDF powder treated into three flasks, then adding DMF(dimethylformamide) for mixing, then adding NIPAAm (N-isopropylacrylamide) and an initiating agent AIBN, continuously stirring the mixture to allow the chemical substances to react for 8 to 12 hours after dissolution, adding methanol for precipitation after cooling, carrying out suction filtration, and performing pumping and drying after repeated cleaning with distilled water, so as to obtain thermosensitive PVDF-g-PNIPAAm copolymer; and (3), dissolving the PVDF-g-PNIPAAm, PAN (peroxyacetyl nitrate) and PEG (polyethylene glycol) into the solvent DMF, and spinning according to a conventional method. The preparation method provided by the invention has the advantages that the processing is simple, the cost is low, special equipment is not required, the spinning performance of obtained products is excellent, the spinning cost is low, and industrialized implementation is easy.

Description

[0001] technical field [0002] The invention relates to an intelligent chemical fiber, in particular to a method for preparing a temperature-responsive curtain fiber with functions of moisture absorption, ventilation and sound absorption. Background technique [0003] Smart materials are a hot spot in the field of new materials research at home and abroad in recent years, usually composed of matrix materials, sensitive components, actuation units, and information processors. Among them, the actuation unit is an extremely important component, and its main function is to respond appropriately by changing its own geometric shape or other properties after sensing environmental stimuli. Polymer materials have the most typical characteristics of soft matter and are easy to respond to external fields. Therefore, polymer materials play an irreplaceable role in the research of smart materials. [0004] Temperature-sensitive polymer materials are a hot topic in the research of intel...

AI Technical Summary

Problems solved by technology

In recent years, there have been many studies and reports on temperature-sensitive fiber materials, but how to develop a temperature-sensitive fiber material to make its fabrics have functions such as moisture absorption, ventilation, and sound absorption, and can be adjusted by adjusting the temperature changes in the environment. It is still a difficult problem to intelligently control the functions of moisture absorption, ventilation and sound absorption