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Preparation method of light environment-friendly composite wallboard

A composite wallboard and environmental protection technology, applied in the field of building decoration materials, can solve the problems of high labor intensity, slow construction speed, difficult transportation and dismantling, etc., and achieve the effect of simple process and good physical and mechanical properties

Active Publication Date: 2019-12-20
DARE WOOD BASED PANEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional brick walls also have disadvantages such as slow construction speed, heavy weight, high labor intensity, and difficult transportation and dismantling, which have been partially replaced by new materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing light-weight and environmentally friendly composite wallboards. First, thin formaldehyde-free fiberboards are prepared, with a thickness of 2mm. The specific production steps include: wood peeling→shaving→screening→water washing→cooking→heat grinding→fiber drying→glue blending→laying Forming → pre-pressing → hot pressing → cooling → sanding → health preservation → inspection and grading → packaging and storage.

[0028] In the pavement forming step, by adjusting the pavement density, the density of the thin formaldehyde-free fiberboard is controlled to 900kg / m³;

[0029] In the described sizing step, the adhesive is isocyanate, and the sizing amount is 60kg / m³;

[0030] In the health-preserving step, the moisture content of the thin formaldehyde-free fiberboard is 5.0-6.5% by adjusting the temperature and humidity of the health-preserving environment;

[0031] Then prepare polyurethane foam material A and material B, and mix material A and materi...

Embodiment 2

[0042] A method for preparing light-weight and environmentally friendly composite wallboards. First, thin formaldehyde-free fiberboards are prepared, with a thickness of 1.5mm. The specific production steps include: wood peeling→shaving→screening→water washing→cooking→heat grinding→fiber drying→adhesive application→ Pavement forming → pre-pressing → hot pressing → cooling → sanding → health preservation → inspection and grading → packaging and storage.

[0043] In the pavement forming step, by adjusting the pavement density, the density of the formaldehyde-free thin fiberboard is controlled to 920kg / m³;

[0044] In the described sizing step, the adhesive is isocyanate, and the sizing amount is 65kg / m³;

[0045] In the health-preserving step, the moisture content of the thin formaldehyde-free fiberboard is 5.0-6.5% by adjusting the temperature and humidity of the health-preserving environment;

[0046] Then prepare polyurethane foam material A and material B, and mix material ...

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Abstract

The invention belongs to the technical field of building decoration materials, relates to composite wallboards, and particularly relates to a preparation method of a light environment-friendly composite wallboard. The method comprises the following steps of placing a thin formaldehyde-free fiber board with isocyanate sprayed on a board surface at the bottom of a mold with the sprayed board surfacefacing upwards, and uniformly pouring a polyurethane foaming material into the mold; placing the other thin formaldehyde-free fiber board with isocyanate sprayed on a board surface in the mold with the sprayed board surface being in contact with the polyurethane foaming material; and then placing the mold in a hot press, performing reacting for 5-15 min at a temperature of 60-80 DEG C and a pressure of 20-40 kg / cm<2>, performing naturally cooling to room temperature, opening the mold, and removing leftover bits and pieces to obtain the light environment-friendly composite wallboard. Accordingto the preparation method of the light environment-friendly composite wallboard, the used materials do not contain formaldehyde, the preparation method is simple, convenient and pollution-free, and the prepared board is green, healthy and environment-friendly; and moreover, the wood fiber board and the polyurethane foaming material are properly combined, the prepared composite wallboard has the advantages of good physical and mechanical properties, light weight, no formaldehyde, thermal insulation, sound insulation and the like, and can be widely applied to the field of indoor wall decoration.

Description

technical field [0001] The invention belongs to the technical field of building decoration materials, and relates to a composite wallboard, in particular to a manufacturing method of a lightweight and environment-friendly composite wallboard. Background technique [0002] With the development of society and the improvement of people's living standards, consumers have put forward higher requirements for interior decoration, especially for wall decoration. A brick wall is made of two materials, bricks and mortar, which glues the bricks together to form a wall or block. Brick wall belongs to masonry wall, which has the advantages of heat preservation, heat insulation and sound insulation. However, traditional brick walls also have disadvantages such as slow construction speed, heavy weight, high labor intensity, and difficulty in handling and dismantling, which have been partially replaced by new materials. [0003] The invention mainly aims at the deficiencies of traditional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C2/296B32B27/40B32B21/02B32B21/04B32B27/12B29C43/58C08G18/66C08G18/40C08G18/42C08G18/48C08G18/32C08L75/04C08L91/00C08L83/12
CPCE04C2/296B32B5/18B32B21/02B32B21/047B32B27/12B29C43/58C08G18/6688C08G18/4018C08G18/42C08G18/48C08G18/3281C08L75/04B32B2307/50B32B2307/304B32B2307/102B32B2607/02B32B2266/0278B32B2250/03B32B2250/40B29C2043/5816B29K2075/00B29L2031/10B29L2007/002C08G2101/00C08L2205/03C08L2203/14C08L91/00C08L83/12
Inventor 王丽陈秀兰
Owner DARE WOOD BASED PANEL GRP