Development and Performance Evaluation of a New Compound Humidity Control Building Material

摘要

A power-free "precise" humidity control building material is made of porous inorganic minerals as carriers to be coated with the liquid of the humidity control composition, which is used to regulate humidity in indoor environment. The selected mineral substrates are made of inorganic materials such as fibers, cement, quartz sand and expanded vermiculite. Porous vermiculite is the main adsorption carrier. In order to increase the speed of moisture absorption and desorption, mineral substrates with thickness of 5mm and weight of 7kg/m2 are selected. According to the actual conditions of museums all over the country, the design requirement of suitable humidity-regulating board should involve the following points: it does not need to depend on the maintenance of power system, and can presuppose "intelligent" humidity-regulating board with "precise humidity". It has the characteristics of large humidity-regulating capacity, rapid moisture absorption and desorption, high cost performance and convenient construction.