Composite microcapsule additive containing phase change material and sarcandra glabra extract and application of composite microcapsule additive

Abstract

The invention belongs to the technical field of functional cellulosic fibers and relates to a composite microcapsule additive containing a phase change material and sarcandra glabra extract. A preparation method comprises the following steps: adding the phase change material, an emulsifying agent, an initiator and distilled water into a heating device, and stirring to form a stable emulsifying solution; slowly dripping methyl methacrylate into the emulsifying solution, and carrying out a polymerization reaction after a pre-polymerization reaction; standing and washing with ethanol and filtering to obtain a solid matter; drying the solid matter to obtain a phase change material microcapsule; mixing the phase change material microcapsule with a sarcandra glabra extract solution, wherein the phase change material microcapsule sufficiently adsorbs the sarcandra glabra extract; drying the mixture to obtain the phase change material microcapsule adsorbing the sarcandra glabra extract on the surface; and adding the phase change material microcapsule into a porous starch ethanol solution to carry out adsorption; adding beta-cyclodextrin and emulsifying at a high speed to obtain composite microcapsule additive containing the phase change material and the sarcandra glabra extract from inside to outside. Sarcandra glabra viscose prepared by using the additive has good temprature adjusting and antibacterial functions.

Description

technical field [0001] The invention belongs to the technical field of functional cellulose fibers, and in particular relates to a composite microcapsule containing a phase-change material and an extract of coral coral, which is used for preparing a coral coral antibacterial cellulose fiber with a temperature regulating function and a preparation method thereof. Background technique [0002] Viscose fiber products have the characteristics of moisture absorption, good air permeability and comfortable wearing, and have been widely used. However, most viscose fibers in my country are conventional varieties, and there are few types of functional fibers and differentiated fibers. Therefore, vigorously developing new varieties of high-performance and differentiated viscose fibers is the main direction of development in the field of viscose fibers. [0003] Grass coral extract is a non-volatile brown granular solid extracted from grass coral. It has the effects of clearing heat and...

AI Technical Summary

Problems solved by technology

In this method, the powder solution of Coralia praecox extract is added too early, which seriously decomposes Coral praecox extract in a strong alkaline environment, and at the same time, the loss of water-soluble Coral praecox extract additives is relatively large during the wet spinning molding process, which affects The functionality of the fiber, the function of the fiber decays rapidly after repeated washing

[0005] Chinese patent 201510176510.9 discloses a preparation method of viscose fiber containing coral coral extract, the method includes the following steps: preparation of antibacterial agent solution, adding dispersant, adding sodium carboxymethyl cellulose, and blending with spinning stock solution , spinning and post-processing; the preparation step of the antibacterial agent solution is to add the powder of the coral coral extract into the water at a temperature of 25±1°C, and the addition amount is 100g / 1000ml of water, and stir until the powder is completely dissolved to make an antibacterial agent solution A, solution B is made after adding dispersant; The technical scheme is to dissolve the antibacterial agent Coralia praecox completely and make antibacterial agent solution, then add dispersant and sodium carboxymethyl cellulose to improve dispersibility and solution viscosity; It is blended with the spinning dope and spun by the conventional viscose spinning process, so there are also problems of effective component decomposition and loss during the molding process, which greatly weakens the functionality of the fiber