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Indoor formaldehyde decomposition paper surface gypsum plaster board and preparation method thereof

A gypsum board and formaldehyde decomposition technology, which is applied in the field of indoor formaldehyde decomposition gypsum board and its preparation, can solve problems such as secondary pollution, accelerate the setting speed, increase the viscosity and adhesive force, and shorten the molding period. Effect

Inactive Publication Date: 2018-09-14
DEHUA TB NEW DECORATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formaldehyde-removing gypsum boards produced by the above patented methods all absorb formaldehyde through the reaction of chemical reagents. Whether there will be secondary pollutants after the adsorption of formaldehyde, the principle of decomposing formaldehyde and the environmental protection need to be discussed. Therefore, the above-mentioned formaldehyde gypsum boards have certain problems. Defects, there is a possibility of secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of preparation method of indoor formaldehyde decomposition paper-faced gypsum board, concrete steps are as follows:

[0043] S1: Preparation of formaldehyde decomposing agent suspension, dissolving the formaldehyde removing agent mixture composed of chitin, nano-silicon wafer, tourmaline powder with a mass ratio of 5:4:1 and the silica gel medium with ordered pores in water, using 500r / min After stirring rapidly for 30 minutes, stir at a slow speed of 100 r / min, mix evenly, and prepare a formaldehyde decomposing agent suspension with a mass fraction of 15%;

[0044] S2: Production of formaldehyde-decomposing face-protecting paper. Mix the formaldehyde-decomposing agent suspension and paper slurry in step S1 at a mass ratio of 1.5:10, and then prepare formaldehyde-decomposing gypsum board face-protecting paper and face-protecting paper according to the conventional paper production process. The width of the front cardboard is 1225mm, the width of the back cardboar...

Embodiment 2

[0050] A kind of preparation method of indoor formaldehyde decomposition paper-faced gypsum board, concrete steps are as follows:

[0051] S1: Preparation of formaldehyde decomposing agent suspension, dissolving the formaldehyde removing agent mixture composed of chitin, nano-silicon chips, tourmaline powder with a mass ratio of 5:4.9:0.1 and ordered pore silica gel medium in water, using 600r / min After stirring rapidly for 40 minutes, stir at a slow speed of 200 r / min, mix evenly, and prepare a formaldehyde decomposing agent suspension with a mass fraction of 25%;

[0052] S2: Production of formaldehyde-decomposing face-protecting paper. Mix the formaldehyde-decomposing agent suspension and paper slurry in step S1 at a mass ratio of 1:10, and then prepare formaldehyde-decomposing gypsum board face-protecting paper and face-protecting paper according to the conventional paper production process. The front cardboard width is 1295mm, the back cardboard width is 1205mm, and the b...

Embodiment 3

[0058] A kind of preparation method of indoor formaldehyde decomposition paper-faced gypsum board, concrete steps are as follows:

[0059] Y1: Preparation of formaldehyde decomposing agent suspension, dissolving the formaldehyde removal agent mixture composed of chitin, nano-silicon wafer, tourmaline powder with a mass ratio of 4.5:4.5:1 and ordered pore silica gel medium in water, using 700r / min After stirring rapidly for 50 minutes, stir at a slow speed of 150 r / min, mix evenly, and prepare a suspension of formaldehyde decomposing agent with a mass fraction of 20%;

[0060] Y2: Stirring and pulping, mixing construction gypsum, 0.6mm thick glass fiber mesh, water and foaming agent, coagulation accelerator, water reducing agent and adhesive in a mass ratio of 1:1:1:1, Then add octenyl succinic anhydride ethanol solution, stir and mix evenly, and prepare a slurry for later use.

[0061] Y3: Forming the slurry in step Y2 and pasting it together with ordinary face-protecting pap...

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Abstract

The invention provides an indoor formaldehyde decomposition paper surface gypsum plaster board and a preparation method thereof. The indoor formaldehyde decomposition paper surface gypsum plaster board is composed of a sandwich layer and formaldehyde decomposition surface covering paper sticking to the two sides of the sandwich layer, the preparation method of the sandwich layer comprises the steps that after building plaster, a fiber reinforced material, an addition agent and water are fully mixed and evenly stirred, an octenyl succinic anhydride alcohol solution is added, stirring and mixingevenly are carried out to prepare seriflux, the seriflux is molded to obtain the sandwich layer; the formaldehyde decomposition surface covering paper is prepared according to a conventional paper production technology after a formaldehyde decomposing agent turbid liquid and pulp are evenly mixed or by directly spraying the formaldehyde decomposing agent turbid liquid on common surface covering paper. The indoor formaldehyde decomposition paper surface gypsum plaster board and the preparation method thereof have the advantages that not only can formaldehyde, benzene, TVOC and other pollutantsin the environment be efficiently and durably removed, but also heavy metal ions and other harmful pollutants in the environment can be efficiently adsorbed, secondary pollution cannot be generated,the preparation method is simple, the cost is low, the purification efficiency of the formaldehyde reaches to 75% or above, and the durability of the purification effect of the formaldehyde is greaterthan 60%.

Description

technical field [0001] The invention relates to the technical field of interior decoration materials, in particular to an indoor formaldehyde-decomposed paper-faced gypsum board and a preparation method thereof. Background technique [0002] The quality of air environment is a common concern of modern people's decoration. Artificial boards, decoration materials, paints, etc. used in decoration and other links contain residual formaldehyde, which will gradually and slowly release to the surrounding environment for a long time, posing a serious threat to people's health. In civil building decoration projects, indoor environmental pollutants are restricted according to national standards, in which formaldehyde emission is less than 0.08mg / m 3 . In order to reduce the concentration of free formaldehyde in indoor air more efficiently, formaldehyde removal products are welcomed by consumers. Therefore, decoration materials that can absorb and decompose formaldehyde in indoor ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/10C04B41/61E04F13/075
CPCC04B28/14C04B41/61C04B2111/00017C04B2111/00025C04B2111/27C04B2111/28E04F13/0875C04B14/42C04B2103/12C04B2103/42C04B14/36C04B22/02C04B24/12C04B2103/302C04B2103/445
Inventor 沈娟霞刘元强叶交友郭炳砣
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD
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