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Preparation method of environment-friendly water-resistant gypsum plaster board

A paper-faced gypsum board, an environment-friendly technology, applied in the direction of manufacturing tools, ceramic molding machines, etc., can solve the problems of low flexural strength, low impact strength, easy to be affected by moisture, poor ability to absorb harmful gases, etc., and achieve good water resistance, High flexural strength, good effect of removing harmful gases

Inactive Publication Date: 2017-03-22
常州市鼎升环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide an environment-friendly water-resistant gypsum board for the existing paper-faced gypsum board, which has low flexural strength and impact strength, is easy to be damp, and has poor ability to absorb harmful gases. Method, the method firstly pickled mullet and fermented with tofu, distiller's grains, etc., collected the fermented liquid and centrifuged to obtain the supernatant, and added it to the powder made of tourmaline, cerium oxide, coconut shell activated carbon, etc. Then add sodium dodecylbenzene sulfonate and citric acid to mix to obtain the adsorption material, then grind calcium carbonate, alkali-resistant glass fiber, gypsum powder, etc., and stir with the adsorption material, guar gum, etc. to make a mixed slurry , and then use the mold to make a blank and dry it, then mix sodium methyl siliconate with deionized water and spray it on the surface of the blank, and finally dry and cool to get an environmentally friendly water-resistant gypsum board. The invention adopts green and natural The raw materials are used to prepare gypsum board, the process is simple, the finished gypsum board has high flexural strength and impact strength, and the finished product has good water resistance, and can effectively absorb harmful gases in the air and purify the air, so it has good application prospect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First take 600g of fresh mullet, and remove its viscera, then clean it with deionized water, then put it in a ceramic jar, add 20g of salt, stir and mix well, seal the ceramic jar and marinate for 15 days, Stir once every 6 days during the period; after the pickling is completed, wash the pickled material 3 times with deionized water, then put it in a container, add 20g of tofu, 10g of distiller's grains and 2L of deionized water, stir and mix, then pour into the fermentation In the tank, ferment at 30°C for 10 days, collect the fermented liquid, put it in a centrifuge, centrifuge at 5000r / min for 30min, and collect the supernatant; then weigh 10g tourmaline, 20g cerium oxide, 6g Add coconut shell activated carbon and 3g of titanium dioxide into a ball mill and mill for 2 hours, pass through a 100-mesh sieve to obtain a mixed powder, add the mixed powder to the above supernatant, stir for 5 minutes, then add 3g of sodium dodecylbenzenesulfonate and 6g of lemon acid, aft...

example 2

[0020]First take 700g of fresh mullet, remove its viscera, then clean it with deionized water, then put it in a ceramic jar, add 25g of salt, stir and mix well, seal the ceramic jar for 18 days, Stir once every 6 days during the period; after the pickling is completed, wash the pickled matter with deionized water 4 times, then put it in a container, add 25g of tofu, 15g of distiller's grains and 3L of deionized water, stir and mix, then pour into the fermentation In the tank, ferment at 35°C for 11 days, collect the fermented liquid, put it in a centrifuge, centrifuge at 5500r / min for 35min, and collect the supernatant; then weigh 15g tourmaline, 25g cerium oxide, 7g Coconut shell activated carbon and 4g of titanium dioxide were added to a ball mill and milled for 2.5 hours, passed through a 150-mesh sieve to obtain a mixed powder, which was added to the above supernatant, stirred for 8 minutes, and then 4g of sodium dodecylbenzenesulfonate and 7g of sodium dodecylbenzenesulfon...

example 3

[0023] First take 800g of fresh mullet and remove its viscera, then clean it with deionized water, then put it in a ceramic jar, add 30g of salt, stir and mix well, then seal and marinate the ceramic jar for 20 days. Stir once every 7 days during this period; after the pickling is completed, wash the pickled material with deionized water for 5 times, then put it in a container, add 30g of tofu, 20g of distiller's grains and 4L of deionized water, stir and mix, then pour into the fermentation In the tank, ferment at 40°C for 12 days, collect the fermented liquid, put it in a centrifuge, centrifuge at 6000r / min for 40min, and collect the supernatant; then weigh 20g tourmaline, 30g cerium oxide, 8g Add coconut shell activated carbon and 5g of titanium dioxide into a ball mill and mill for 3 hours, pass through a 200-mesh sieve to obtain a mixed powder, add the mixed powder to the above supernatant, stir for 10 minutes, then add 5g of sodium dodecylbenzenesulfonate and 8g of lemon ...

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Abstract

The invention discloses a preparation method of an environment-friendly water-resistant gypsum plaster board and belongs to the field of plasterboard preparation technology. The preparation method comprises the following steps: firstly pickling snakeheaded fish and fermenting the pickled snakeheaded fish and bean curd, vinasse, etc., collecting a fermentation broth and centrifuging to obtain a supernatant, adding the supernatant into powder prepared from tourmalinite, cerium oxide, cocoanut active charcoal, etc. and stirring, adding sodium dodecyl benzene sulfonate and citric acid and mixing to obtain an adsorption material, crushing calcium carbonate, alkali resistant glass fiber, gypsum powder and the like, stirring the crushed product with the adsorption material, guar gum, etc. to prepare mixed slurry, preparing a blank material from the mixed slurry by the use of a mold and drying, mixing sodium methylsilanolate and deionized water and spraying the mixture onto the surface of the blank material, and finally drying and cooling so as to obtain the environment-friendly water-resistant gypsum plaster board. The technology is simple. The raw materials are natural and environment-friendly. The prepared plasterboard finished product has high flexural strength and impact strength, has good water resistance, can effectively adsorb harmful gas in the air and purify the air, and has a good application prospect.

Description

technical field [0001] The invention discloses a preparation method of an environment-friendly water-resistant paper-faced gypsum board, belonging to the technical field of gypsum board preparation. Background technique [0002] Gypsum board is the most commonly used building material. It has the advantages of light weight, sound insulation, heat insulation, strong processing performance, and simple construction methods. It is widely used in industrial and civil buildings, especially as indoor and outdoor decoration materials, such as suspended ceilings. , Partition walls and other materials. Currently commonly used gypsum boards mainly include paper-faced gypsum boards and another kind of gypsum boards with glass fiber mesh cloth. The outer side is provided with a protective layer made of tough paper. [0003] As a new type of building material, paper-faced gypsum board has the advantages of light weight, non-combustibility, earthquake resistance, thermal insulation, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/16C04B28/14B28B1/52B28B3/00
CPCC04B40/0039B28B1/52B28B3/00C04B28/14C04B2111/00017C04B2111/00025C04B2201/50
Inventor 许斌孟中立薛蕾
Owner 常州市鼎升环保科技有限公司
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