A kind of preparation method of sodium polyacrylate-halloysite-konjac glucomannan composite humidity-conditioning agent

Abstract

The invention relates to a method for preparing a sodium polyacrylate-halloysite-konjac glucomannan composite humidity conditioning agent. The method comprises the following steps of: (a) activating halloysite at the temperature of 450 DEG C; (b) weighing polyacrylic acid, adding the weighed polyacrylic acid into sodium hydroxide liquid, prepared from sodium hydroxide and distilled water, to neutralize, weighing konjac glucomannan, activated halloysite, nano silver-loaded antimicrobial powder, potassium persulfate, N,N'-methylene-bis-acrylamide, and aluminum chloride liquid, prepared from aluminum chloride and water, respectively adding the weighed konjac glucomannan, activated halloysite, nano silver-loaded antimicrobial powder, potassium persulfate, N,N'-methylene-bis-acrylamide and aluminum chloride liquid into a reactor containing neutralized liquid, and carrying out reaction for 1-2 hours while stirring; (c) cooling a polymer obtained in the step (b) to room temperature, then drying the polymer for 2-3 hours at the temperature of 150 DEG C, and carrying out secondary foaming and pore forming; and (d) crushing a dried humidity conditioning material for 2-3 minutes by using a crusher, thereby obtaining a powdered humidity conditioning agent. According to the method for preparing the sodium polyacrylate-halloysite-konjac glucomannan composite humidity conditioning agent, the humidity conditioning agent has the advantages of rapid humidity conditioning response and moisture absorption and desorption rate, large moisture content / capacity, good relative humidity stability, simplicity and convenience in preparation, low cost, good effect, environmental friendliness, no pollution, no toxicity and harmlessness.

Description

technical field [0001] The invention relates to a preparation method of a humidity-conditioning agent, in particular to a preparation method of a high-performance sodium polyacrylate-halloysite-konjac glucomannan composite humidity-conditioning agent for a museum microenvironment. It is mainly suitable for humidity regulation of cultural relics preservation environment. Background technique [0002] my country is an ancient civilization with a history of thousands of years. There are many kinds of cultural relics, and the quantity is extremely rich. However, due to the influence of environmental factors such as temperature, humidity, light, air pollutants and microorganisms during the collection process, the cultural relics have suffered varying degrees of damage. Destruction and damage, in which temperature and humidity are the two most basic conditions. [0003] Compared with the damage caused by photoaging to textile cultural relics and the difficulty of protection, the a...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the number of pores formed during the synthesis process is not large enough, the specific surface area is not large enough, and the wet capacity and moisture absorption and release performance need to be further improved.