Humidity-conditioning building materials capable of automatically adjusting indoor humidity

A technology for building materials and indoor humidity, used in climate sustainability, sustainable waste treatment, solid waste management, etc. The effect is not obvious and other problems, to achieve the effect of obvious humidity control effect, continuous humidity control ability and low price

Inactive Publication Date: 2008-08-06
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The preparation process of lithium chloride sol of the present invention is as follows:

[0027] 1. It is made by mixing 8% LiCl with 92% polyacrylic superabsorbent resin sol. The polyacrylic acid superabsorbent resin sol is made by mixing superabsorbent resin and distilled water at a ratio of 1:99 (mass ratio).

[0028] 2. It is prepared by mixing 12% LiCl with 88% polyacrylic superabsorbent resin sol. The polyacrylic acid superabsorbent resin sol is made by mixing superabsorbent resin and distilled water at a ratio of 1:99 (mass ratio).

Embodiment

[0030] The chemical composition of various raw materials is as follows:

[0031] raw material

Composition (chemical formula)

plaster of construction

β hemihydrate gypsum (βCaSO 4 1 / 2H 2 O) as the main component

plant fibres

Straw or wheat straw or straw mixed with wheat straw, crushed to a size smaller than

5mm powder

Lithium chloride sol

LiCl+polyacrylic acid superabsorbent resin sol

Gypsum retarder

citric acid or tartaric acid

White cement

White Portland cement clinker is added to gypsum and ground to make a hydraulic adhesive

Coagulation material

[0032] The batching range of various raw materials is as follows (percentage by weight):

[0033] 60%-80% building gypsum, 8%-15% plant fiber, 5%-15% lithium chloride sol, 3%-8% gypsum retarder, 4%-9% white cement.

[0034] Add the above ingredients into a small mixer and stir for 5-10 minutes, then add water and stir for 10-20 minu...

example 1

[0037] The invention can be made into viscous and uniform slurry and is applied to the automatic adjustment of the indoor humidity of a residence.

[0038] (1) Material preparation: Prepare the raw materials needed for production.

[0039] (2) Ingredients: 70% building gypsum, 9% plant fiber, 10% lithium chloride sol, 6% gypsum retarder and 5% white cement.

[0040] (3) Stirring: Add the above ingredients into a small mixer and stir for 5-10 minutes, then add water and stir for 10-20 minutes to make a thick and uniform slurry.

[0041] (4) Painting: The construction process is as follows: base treatment - paste cakes on the wall - evenly sprinkle water on the wall - prepare slurry (composite humidity-adjusting wall material) - scrape the slurry on the wall - scrape flat - compact and calender -Inspection and acceptance. When scraping and plastering the composite humidity-adjusting building materials on the wall, first use 5mm thick plaster plaster as a primer, and then const...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B18/24C04B22/12
CPCC04B40/0096C04B28/14C04B2103/46C04B2111/802Y02W30/91C04B7/00C04B18/24C04B22/124C04B2103/22
Inventor 闫增峰尚建丽马斌齐黄沛增
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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