Unlock instant, AI-driven research and patent intelligence for your innovation.

A water-resistant paper-faced gypsum board

A paper-faced gypsum board and gypsum clinker technology, applied in the field of gypsum board preparation, can solve problems such as high cost, increased weight of gypsum board, and reduced strength of gypsum board

Active Publication Date: 2020-09-04
BEIJING NEW BUILDING MATERIALS PLC
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem of high cost, which will reduce the strength of gypsum board and increase the weight of gypsum board

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A water-resistant paper-faced gypsum board
  • A water-resistant paper-faced gypsum board
  • A water-resistant paper-faced gypsum board

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation method of the paper-faced gypsum board composite waterproofing agent of each embodiment: After stirring 0.1-5 parts by weight of silicone oil and equal weight of water with a colloidal mill, add 0.01-2 parts by weight of methyl silicone resin and 0.01-5 parts by weight of silane Coupling agent, 0.01-4 parts by weight polyurethane emulsion, adjust the pH value of the agent to between 8.5, and stir at 1800r / min at 50°C for 0.4h; add 0-5 parts by weight of one or more of lime or cement, 2500r / Min stirring for 0.8h, the composite waterproofing agent is obtained.

[0037] The weight ratio of methyl silicone resin and polyurethane emulsion is 1:(1-2), preferably, 1:1.

[0038] The water-resistant gypsum board also includes 0.05-0.3 parts by weight of STMP; 0.02-1 parts by weight of modified starch; 0.01-1 parts by weight of foaming agent; and 70-90 parts by weight of water.

[0039] Preferably, the content of each component of the water-resistant gypsum board is: 1...

Embodiment 1

[0044]

[0045]

Embodiment 2

[0047]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
water absorptionaaaaaaaaaa
Login to View More

Abstract

The invention discloses a water-resistant gypsum plaster board. The water-resistant gypsum plaster board comprises a composite waterproof agent, and the composite waterproof agent comprises the following components: silicone oil, methyl silicone resin, a silane coupling agent, a polyurethane emulsion and one or more selected from lime and cement. Through the addition of the composite waterproof agent, the water-resistant gypsum plaster board has excellent water resistance. Meanwhile, the water-resistant gypsum plaster board has the characteristics of light weight and excellent mechanical property.

Description

Technical field [0001] The invention relates to the field of gypsum board preparation, in particular to a water-resistant paper-faced gypsum board. Background technique [0002] Gypsum board has relatively light weight, high strength, thinner thickness, convenient processing, sound insulation, heat insulation, and fire resistance. It is one of the new light-weight boards that are currently being developed. At present, gypsum board has been widely used in interior partitions, ceilings, sound-absorbing boards, ground base boards and various decorative boards of various buildings such as houses, office buildings, shops, hotels and industrial plants. [0003] However, gypsum board itself has disadvantages such as poor waterproof and moisture-proof performance, large loss of strength after being damp, and easy warping and deformation. If the gypsum board is not waterproofed, the 24h water absorption rate can reach 50% or even higher. At present, the waterproof treatment of gypsum boar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42C04B28/14C04B38/10C04B103/65C04B111/27
CPCC04B28/14C04B40/0039C04B2103/65C04B2111/0062C04B2111/27C04B24/42C04B24/282C04B7/00C04B2/02C04B22/16C04B24/38C04B24/10C04B38/10
Inventor 陈红霞周建中王霞李帆白风华冉秀云
Owner BEIJING NEW BUILDING MATERIALS PLC