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A kind of manufacturing method of lightweight environmental protection composite wallboard

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

Active Publication Date: 2022-07-29
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 a lightweight and environmentally friendly composite wallboard. First, a thin formaldehyde-free fiberboard with a thickness of 2 mm is prepared. The specific production steps include: wood peeling → chipping → screening → water washing → cooking → hot grinding → fiber drying → sizing → paving Forming → pre-pressing → hot pressing → cooling → sanding → curing → inspection and grading → packaging and storage.

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

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

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

[0031] Then prepare the materials A and B of the polyurethane foam material. Before pouring them into the abrasive tool, mix the ma...

Embodiment 2

[0042] A method for preparing a lightweight and environmentally friendly composite wallboard. First, a thin formaldehyde-free fiberboard with a thickness of 1.5 mm is prepared. The specific production steps include: wood peeling → chipping → screening → water washing → cooking → thermal grinding → fiber drying → adjusting and applying glue → Pavement forming → pre-pressing → hot pressing → cooling → sanding → health care → inspection and grading → packaging and storage.

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

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

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

[0046] Then prepare the materials A and B of the polyurethane foam material. Before pouring into ...

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Abstract

The invention belongs to the technical field of building decoration materials, and relates to composite wallboards, in particular to a method for manufacturing a lightweight and environmentally friendly composite wallboard. Pour the polyurethane foam material; then place another thin formaldehyde-free fiber board sprayed with isocyanate in the mold, and the sprayed board surface is in contact with the polyurethane foam material; then put the mold in a hot press, the temperature is 60 ~ 80℃, pressure 20~40kg / cm 2 The reaction is continued for 5-15 min, naturally cooled to room temperature, the mold is opened, and the leftover material is removed. The material used in the invention does not contain formaldehyde, the preparation method is simple and pollution-free, and the obtained green, healthy and environmentally friendly board; and the wood fiber board material and the polyurethane foam material are properly combined, and the prepared composite wall board has better physical properties. Mechanical properties, light weight, aldehyde-free, thermal insulation, sound insulation and other advantages, can be widely used in the field of interior wall decoration.

Description

technical field [0001] The invention belongs to the technical field of building decoration materials, relates to a composite wallboard, and in particular relates 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 consists of two materials, bricks and mortar. The mortar cements the bricks together to form a wall or block. The brick wall belongs to the masonry wall, which has the advantages of heat preservation, heat insulation, sound insulation and so on. However, traditional brick walls also have shortcomings such as slow construction speed, heavy self-weight, high labor intensity, and difficult handling and dismantling, which have been partially replaced by new materials. [0003] The invention mainly aims at ...

Claims

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Application Information

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Patent Type & Authority Patents(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