Humidity-conditioning building materials capable of automatically adjusting indoor humidity

Abstract

The invention discloses humidity conditioning building material which can automatically condition indoor humidity; the components of raw material and weight percentages of the building material are as follows: 60-80 percent of building gypsum, 8-15 percent of plant fiber, 5-15 percent of lithium chloride sol, 3-8 percent of gypsum retarder and 4-9 percent of white cement. The building material has strong humidity conditioning ability, obvious humidity releasing effect, low construction cost and easy-obtained raw materials.

Description

technical field [0001] The invention relates to a humidity-adjusting building material capable of automatically adjusting indoor humidity. Background technique [0002] The thermal comfort of a living environment depends on the influence of indoor air temperature and air relative humidity. Excessive humidity in the air can cause discomfort such as dampness and chest tightness, and induce arthritis and other diseases; encourage the proliferation and development of various mold viruses, and affect food processing and preservation. However, if the air humidity is too low, it will cause skin allergies, dry eyes and nose, and reduce the resistance of the respiratory system, resulting in the invasion of diseases such as respiratory infection and asthma. In addition, too low humidity will also cause static electricity, which is not conducive to health . The size of the indoor wet environment will affect the wet condition and structural safety of the building envelope, the life of...

AI Technical Summary

Problems solved by technology

In 2001, Hanada Kozo used 400℃~1300℃ high-temperature carbonization, and the carbonized particles obtained by 50-200 mesh standard sieve were heated and pressed by adding binder to make carbonized humidity-controlling material, which can be installed under the bed board to produce humidity-controlling effect, but the production process is complicated , higher cost

In 2001, Yoshida Shigeo and others developed a wall humidity control material to solve the problem that ordinary adjustable humidity building gypsum cannot adjust humidity under adiabatic high humidity

In 2001, Ran Maoyu, Department of Architecture, Huaqiao University, studied the moisture absorption and release properties of silica gel. Silica gel has good moisture absorption capacity, but its moisture release effect is not good and the price is high.

In 2002, Du Shangfeng, Institute of Process Research, Chinese Academy of Sciences, and others carried out research and development of intelligent humidity-regulating ceramic materials. Kaolinite hard ore was crushed, high-temperature roasted, and alkali-dissolved, and then pressurized. The maximum water vapor adsorption capacity As high as 18%, although the humidity-regulating ceramic material has good adjustment ability, the production process is complicated and it is not suitable for industrial mass production

In 2004, the School of Environmental Energy, Beijing University of Technology developed a new type of humidity-controlling coating that can reduce the relative humidity in a confined space from 92.5% to 97.5% within 40 minutes, and has the disadvantage of ineffective humidity control.

[0008] Generally speaking, the materials currently used for humidity regulation in domestic research include sepiolite, kaolin, montmorillonite, zeolite, etc., but none of them has formed a large research climate and mature building material products