A kind of preparation method of natural organic whisker dispersion liquid and the application of the dispersion liquid prepared by this method

Abstract

The present invention provides a natural organic crystal whisker dispersion liquid preparation method, which comprises: mixing ethylene glycol or ethanol or a mixed solution prepared from ethylene glycol and ethanol with distilled water according to a volume ratio of 1:1 to prepare a dispersion medium, adding a dispersing agent and a natural organic crystal whisker material to the dispersion medium, and carrying out high-speed stirring or ultrasonic dispersing to prepare the micro-scale or nano-scale natural organic crystal whisker dispersion liquid. According to the present invention, the natural organic crystal whisker dispersion liquid can be uniformly dispersed in a cellulose fiber spinning raw liquid and can stably exist, and then the crystal whisker enhanced cellulose fibers are prepared through a wet spinning process and have advantages of high strength and large wet modulus.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a method for preparing a natural organic whisker dispersion and the application of the dispersion prepared by the method. technical background [0002] Cellulosic fibers are mainly viscose fibers, which are widely used due to their good hygroscopicity, comfortable wearing, and excellent spinnability. They are often blended and interwoven with cotton, wool or various synthetic fibers for various clothing and decorative textiles. However, ordinary cellulose fiber also has some serious disadvantages, mainly because it is swollen by water in wet state, and its strength is obviously reduced. The wear resistance is poor, which affects the wearing performance of the fabric. [0003] Whiskers have excellent mechanical properties, high mechanical strength, good high temperature resistance, large aspect ratio, no fatigue effect, excellent smoothness and chemical stability, whisker modifi...

AI Technical Summary

Problems solved by technology

This method cannot guarantee the content of zinc oxide whisker material in the fiber, not only can not play a reinforcing effect, but also has poor functionality and durability

[0006] Chinese patent CN103240008A discloses a whisker-reinforced polyvinylidene fluoride hollow fiber membrane and its preparation process. In this method, the whisker material and polyvinylidene fluoride are directly dissolved in a solvent to form a casting solution, and then the film is formed. The whisker material has poor dispersion and is easy to agglomerate, which affects the reinforcement effect

[0007] Chinese patent authorization announcement number CN101525781B discloses a composite fiber modified by keratin whiskers and a preparation method thereof, which is characterized in that the composite fiber modified by keratin whiskers is composed of polymer materials and dispersed in polymer materials It is composed of keratin whiskers extracted from natural keratin fibers. The polymer material is polyvinyl alcohol and polyacrylonitrile. The molding conditions are quite different from those of viscose, and the preparation process of keratin whiskers is relatively complicated.

However, in the preparation process of this method, the nano-whisker material is easy to agglomerate, and the dispersion and compatibility in the viscose collagen solution are poor, which affects the subsequent spinning effect and fiber performance.