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Gypsum boards and lap structures with a paper core

A technology for gypsum boards and sandwich layers, applied in the field of gypsum boards and lap joints, gypsum boards and lap joint structures, can solve problems such as joint cracks and fractures, improve joint strength, facilitate implementation, improve performance and application performance effect

Active Publication Date: 2018-02-23
优包(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the prolongation of use time, cracks often appear in the joint, and more serious fractures occur

Method used

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  • Gypsum boards and lap structures with a paper core
  • Gypsum boards and lap structures with a paper core
  • Gypsum boards and lap structures with a paper core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The three-layer structure gypsum board is composed of a paper material sandwich layer and gypsum layers on both sides of the sandwich layer, and the structure is gypsum layer 1 / paper material sandwich layer A / gypsum layer 2.

[0031] Paper material is 80g / m 2 The kraft paper used in the gypsum layer 1 and the gypsum layer 2 is building gypsum (also known as plaster of paris, stucco), and the main chemical composition is calcium sulfate.

[0032] The paper material in Example 1 is conducive to the lap joint during construction and avoids cracks after construction.

Embodiment 2

[0034] The three-layer structure gypsum board is composed of a paper material sandwich layer and gypsum layers on both sides of the sandwich layer, and the structure is gypsum layer 1 / paper material sandwich layer A / gypsum layer 2.

[0035] Paper material is 80g / m 2 The kraft paper used in the gypsum layer 1 and the gypsum layer 2 is building gypsum (also known as plaster of paris, stucco), and the main chemical composition is calcium sulfate.

[0036] The paper material is punched with round holes with a diameter of 2 cm, the distance between the center points of each round hole is 10 cm, and the arrangement of the center points is a square.

[0037] The difference between embodiment 2 and embodiment 1 is that the paper material of embodiment 2 is punched with round holes, which helps to make the fusion part exist between the two layers of gypsum layers, and then exerts the advantages of paper material. Lap joints, while avoiding cracks after construction, also help to impro...

Embodiment 3

[0039] The three-layer structure gypsum board is composed of a paper material sandwich layer and gypsum layers on both sides of the sandwich layer, and the structure is gypsum layer 1 / paper material sandwich layer A / gypsum layer 2.

[0040] Paper material is 80g / m 2 A pulp molded product with a convex-concave structure, the height of the convex-concave surface is 0.5cm. The material used for the gypsum layer 1 and the gypsum layer 2 is building gypsum (also known as plaster of paris, plaster), and the main chemical composition is calcium sulfate.

[0041] The difference between embodiment 3 and embodiment 1 lies in that the paper material used in embodiment 2 is a pulp molded product with a height of 0.5 cm. The convex-concave structure of the pulp molding not only helps to improve the strength of the gypsum board, but also facilitates the strength of the overlapping part of the two gypsum boards during the construction of the gypsum board, so as to avoid cracks in the overla...

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Abstract

The invention discloses a gypsum board comprising paper core layers and a lap joint structure and belongs to the fields of building materials and packaging technologies. The gypsum board comprises at least one paper core layer and at least two gypsum layers, and the two gypsum layers are located on the two sides of a paper material respectively to form the gypsum board with at least three layers of structure. In the lap joint process, gypsum on one side face or two side faces of one end of one gypsum board is lost, and the paper material is exposed; gypsum on one side face or two side faces of one end of another gypsum board is lost, and the paper material is exposed; the paper material exposed out of the first gypsum board and the paper material exposed out of the second gypsum board are in lap joint, and the lap joint portions are bonded together through white latex. The gypsum board of a multilayer structure overcomes the defects of a gypsum board without a core layer paper material, the enhancing effect of the core layer paper material on the gypsum board is achieved, lap joint construction improves the strength of connecting seams, and the properties and application performance of the gypsum board are perfected and improved.

Description

technical field [0001] The invention relates to a gypsum board and a lap joint method, in particular to a gypsum board with a paper sandwich layer and a lap joint structure, and belongs to the field of building materials and the field of packaging technology. Background technique [0002] Gypsum board is a kind of material made of building gypsum as the main raw material. It has the advantages of light weight, high strength, thin thickness, convenient processing, sound insulation, heat insulation and fire prevention. It is one of the new lightweight boards currently developed. Gypsum boards are used as internal partition walls, wall cladding panels, ceilings, sound-absorbing panels, ground sub-boards and various decorative panels in various buildings such as residences, office buildings, shops, hotels and industrial plants. [0003] Gypsum boards are mainly divided into paper gypsum boards, paperless gypsum boards, decorative gypsum boards, gypsum hollow-core slats, fiber gy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B13/08B32B3/24B32B3/06
CPCB32B3/06B32B3/266B32B13/08
Inventor 刘全校许文才曹国荣尹彦娜李东立付亚波
Owner 优包(北京)科技有限公司