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A water-resistant and moisture-absorbing paper-faced gypsum board and its preparation process

A paper-faced gypsum board and gypsum technology, applied in covering/lining, construction, building construction, etc., can solve the problems of low impact strength, poor ability to absorb harmful gases, poor water and moisture resistance, etc., and achieve strong water and moisture resistance , good market prospects, and the effect of improving performance parameters

Inactive Publication Date: 2015-08-26
海门市创豪工业设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of poor water and moisture resistance, low flexural strength and impact strength, and poor ability to absorb harmful gases existing in the existing paper-faced gypsum boards, the present invention provides a paper-faced gypsum board with high performance parameters in all aspects. Gypsum board, which is far superior to general products in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A water-resistant and moisture-absorbing paper-faced gypsum board, which consists of face-protecting paper, gypsum matrix and face-protecting paper from top to bottom; the gypsum base and the face-protecting paper are bonded by bonding materials; The protective paper on both sides is the same;

[0020] The face-protecting paper is prepared according to the following method:

[0021] Dosing in the mixing tank according to parts by weight: 300 parts of light calcium carbonate, 100 parts of plant fiber, 100 parts of glass fiber, 100 parts of polylactic acid, 50 parts of polydimethylsiloxane, 20 parts of calcium sulfate, starch ether 20 parts, 10 parts of sodium tripolyphosphate and 100 parts of water; the length of the above-mentioned glass fiber is 5mm;

[0022] First, stir the ingredients in the mixing tank evenly to obtain the slurry, then enter the headbox, so that the slurry is evenly distributed in the fourdrinier section, and then enter the vacuum system for the fi...

Embodiment 2

[0029] A water-resistant and moisture-absorbing paper-faced gypsum board, which consists of face-protecting paper, gypsum matrix and face-protecting paper from top to bottom; the gypsum base and the face-protecting paper are bonded by bonding materials; The protective paper on both sides is the same;

[0030] The face-protecting paper is prepared according to the following method:

[0031] Dosing in the mixing tank according to parts by weight: 400 parts of light calcium carbonate, 150 parts of plant fiber, 150 parts of glass fiber, 100 parts of polylactic acid, 50 parts of polydimethylsiloxane, 20 parts of calcium sulfate, starch ether 20 parts, 10 parts of sodium tripolyphosphate and 100 parts of water; the length of the above-mentioned glass fiber is 10mm;

[0032] First, stir the ingredients in the mixing tank evenly to obtain the slurry, then enter the headbox, so that the slurry is evenly distributed in the fourdrinier section, and then enter the vacuum system for the f...

Embodiment 3

[0039] Charcoal environmental protection paper surface gypsum board performance parameter test detection:

[0040] Comparative test 1: Gypsum board prepared according to the patented method (CN200710139236); gypsum board prepared in Example 1. Determination of water absorption: use a balance to accurately weigh the weight m of a completely dry test piece, then soak the test piece in water at about 30 degrees Celsius, take it out of the water after 1 hour, wipe off the surface moisture with a dry towel, and weigh the test piece again. The weight n is obtained by multiplying (n-m) / m by 100% to obtain the water absorption; the compressive, flexural and flexural strength refers to the B / T17669.3-199 standard, and the specific results are shown in Table 1.

[0041] Table 1

[0042] group Water absorption% Compressive strengthkpa Thermal conductivity W / (m.K) Flexural modulus of elasticity mpa Comparative test 1 9.4 178 0.068 3547 ...

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Abstract

The invention belongs to the field of building environment-friendly materials and discloses a waterproof moisture absorption gypsum plaster board. The waterproof moisture absorption gypsum plaster board sequentially comprises face protection paper, a gypsum base body and face protection paper from top to bottom. The gypsum base body and the face protection paper are bonded through a binding material. The face protection paper at the upper side and the face protection paper at the lower side are the same. The invention further discloses a manufacturing technology of the waterproof moisture absorption gypsum plaster board. The manufactured gypsum plaster board is good in waterproof performance and superior to products of the same type in the market.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a water-resistant and moisture-absorbing paper-faced gypsum board and a preparation process thereof. Background technique [0002] Gypsum board is a material made of building gypsum as the main raw material. It is a building material with light weight, high strength, thin thickness, convenient processing, sound insulation, heat insulation, fire resistance and water resistance, and is one of the new lightweight panels that are currently being developed. Gypsum boards have been widely used in interior partition walls, wall cladding panels (replacing plastering layers), ceilings, sound-absorbing panels, ground sub-boards and various Decorative panels, etc. The gypsum boards produced in my country mainly include: paper gypsum boards, decorative gypsum boards, gypsum hollow slats, fiber gypsum boards, gypsum sound-absorbing boards, anchoring point gypsum boards, etc. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04F13/077
Inventor 王开学
Owner 海门市创豪工业设计有限公司
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