Inorganic putty powder with function of governing humidness

A technology of putty powder and interior wall putty powder, which is applied in the field of building decoration materials, can solve the problems of poor moisture absorption and desorption characteristics, limited moisture absorption and desorption, and direct use obstacles, and achieve the effect of excellent environmental protection characteristics

Active Publication Date: 2009-02-18
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent application 200610099093.3 discloses a moisture-regulating material for textiles and walls, which is composed of biocatalyst, 2-5nm mesoporous materials (sepiolite, diatomite, attapulgite, etc.) and superabsorbent resin , the humidity control range is 35-75% relative humidity, in which the superabsorbent resin plays the role of humidity control, and the mesoporous material is the carrier of other components. The humidity control material has a large amount of moisture absorption, but still has poor moisture abso

Method used

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  • Inorganic putty powder with function of governing humidness
  • Inorganic putty powder with function of governing humidness
  • Inorganic putty powder with function of governing humidness

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] Example 1: Mix the following components into putty powder:

[0034] White cement 15kg

[0035] Ash calcium powder 10kg

[0036] Heavy Calcium Powder 10kg

[0037] Talc powder 10kg

[0038] Gypsum powder 20kg

[0039] Latex powder DM200 4.5 kg

[0040] Methylcellulose 0.5 kg

[0041] Diatomaceous earth (after pretreatment) 30 kg

[0042] Mix the above components into 100 kg of putty powder. When used, it can be prepared according to the weight ratio of water: putty powder 0.4:1.

[0043] Test method: Take 200g of putty powder and divide it into two parts, stir it evenly with water, then scrape and coat it on a 150mm×1500mm glass plate, let it dry naturally, put it in an oven, and dry it at 80°C for 5 hours. Then put the two samples in a 10L airtight container with a temperature of 25°C and a relative humidity of 85%, and measure the maximum decrease in relative humidity in the container. After the relative humidity in the airtight container reaches equilibrium, c...

example 2

[0048] Example 2: Mix the following components into putty powder:

[0049] Ordinary Portland cement 33 kg

[0050] Heavy Calcium Powder 9kg

[0051] Talc powder 6 kg

[0052] Latex powder 2488 1.5 kg

[0053] Methylcellulose 0.5 kg

[0054] Attapulgite clay 25kg

[0055] Sepiolite (after pretreatment) 25 kg

[0056] 100 kilograms of putty powder are mixed by above-mentioned components. When in use, it can be formulated according to the weight ratio of water: putty powder 0.4:1.

[0057] Carry out functional test with the same method as Example 1, as a result, under the conditions of temperature 25°C and relative humidity 85%, the maximum reduction of relative humidity reaches 14%RH; Dehumidification under certain conditions, resulting in a maximum increase in relative humidity of 12% RH.

example 3

[0058] Example 3: Mix the following components into putty powder:

[0059] Ordinary Portland white cement 50kg

[0060] Double Fly Powder 14kg

[0061] Lithopone 10kg

[0062] Latex powder DP-88 0.5 kg

[0063] Methylcellulose 0.5 kg

[0064] Vermiculite powder (after pretreatment) 15 kg

[0065] Bentonite (after pretreatment) 10 kg

[0066] 100 kilograms of putty powder are mixed by above-mentioned components. When in use, it can be formulated according to the weight ratio of water: putty powder 0.4:1.

[0067] Carry out functional test with the same method as Example 1, the result is under the condition of temperature 25 ℃, relative humidity 85%, relative humidity maximum reduction amount reaches 10%RH; Dehumidification under certain conditions, resulting in a maximum increase in relative humidity of 7% RH.

[0068] Embodiments 4-6: Mix the components and dosages in Table 1 to form a putty powder, and perform functional testing with the same method as in Embodiment 1...

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Abstract

The invention relates to interior wall putty powder with air humidity regulating function, which belongs to the field of building materials. The putty powder is composed of 10 to 50 weight portions of humidity regulating material, 15 to 50 weight portions of inorganic binding material, 15 to 50 weight portions of inorganic filler, and 1 to 5 weight portions of sub divisible rubber powder; the humidity regulating material comprises one type or more than one type of diatomite, sepiolite, attapulgite, vermiculite, zeolite powder, kaolin and bentonite. Because of the environment protection and humidity regulating functions, the multi-pore inorganic mineral material is taken as humidity regulating material and applied in the building interior wall putty powder. With water added in, the putty powder is mixed into lacquer putty and applied on the wall surface, which can effectively regulate the indoor air humidity, so that the indoor air humidity is controlled within the scope which is beneficial to the health of human body; meanwhile, the putty powder has no pollution, no VOC released and can be directly used for decoration.

Description

technical field [0001] The invention relates to building decoration materials, in particular to an interior wall putty powder which can effectively adjust the relative humidity of the indoor environment. Background technique [0002] In daily life, too high humidity will make people feel chest tightness and difficulty breathing, and too high humidity is conducive to the growth of bacteria; when the humidity is too low, the air will appear dry, and items will easily dry out and so on. In recent years, as people's requirements for living comfort are increasing day by day, the influence of humidity level on human living environment has been paid more and more attention. In order to pursue a relatively comfortable humidity environment, people use many methods to control humidity, the most common ones are the use of humidifiers and air conditioners. However, these mechanical control of humidity requires a lot of energy, and the lack of ventilation in the room when using no fresh ...

Claims

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Application Information

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IPC IPC(8): C09D1/06C09D5/34C09D7/12
Inventor 冀志江侯国艳王静王晓燕王继梅李海建
Owner CHINA BUILDING MATERIALS ACAD
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