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A composite floor board produced by using eucalypt wood laminated veneer lumber and a preparation process therefor

A technology of laminated veneer lumber and composite flooring, which is applied in the field of wood, can solve the problems of uneven wood density, short fast-growing eucalyptus wood fibers, and easy warping and deformation, and achieve the effect of improved flatness and uniform moisture content

Active Publication Date: 2016-10-12
江苏格莱木业有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the fast-growing eucalyptus has short fibers and uneven internal density, so the plywood made of it is extremely prone to warping and deformation

Method used

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  • A composite floor board produced by using eucalypt wood laminated veneer lumber and a preparation process therefor
  • A composite floor board produced by using eucalypt wood laminated veneer lumber and a preparation process therefor
  • A composite floor board produced by using eucalypt wood laminated veneer lumber and a preparation process therefor

Examples

Experimental program
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Embodiment

[0025] First carry out the preparation of core layer material, comprise the following steps:

[0026] 1) Eucalyptus veneer hot-pressing pretreatment process: Take the eucalyptus veneer with a thickness of 1.7-2.2mm and a moisture content of 10-14% and carry out a hot-pressing process in a hot press for 1-2 minutes. The control parameters of the hot press are Temperature 100~120℃, pressure 0.80~1.0MPa;

[0027] 2) Gluing process of eucalyptus veneer: apply modified starch adhesive to the eucalyptus veneer treated in step 1), the amount of glue applied is 280-320g / m2; the adhesive uses self-made corn modified starch glue, Corn starch is used as the main raw material, polyvinyl alcohol solution is used as the thickener, flour is used as the filler, and polyisocyanate prepolymer is used as the reinforcing agent for configuration. The appearance is a milky white uniform emulsion with a solid content of 45% and a pH value of 6~ 7. The viscosity is 5000-7500mPa.s, and the storage pe...

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Abstract

The invention provides a composite floor board produced by using eucalypt wood laminated veneer lumber and a preparation process therefor. The composite floor board comprises a paint layer, a face plate layer, a core material layer and a bottom plate layer. The paint layer is a highly-abrasion-proof environmental protection varnish layer and is formed by applying Germany Trefert paint and PPG oil paint through shower coating. The face plate layer is made of hardwood which has beautiful texture and is 0.5mm thick. The core material layer is made of laminated lumber which consists of eight layers of eucalypt wood veneers 15mm thick; the bottom plate layer is made of North America cedar wood 2mm thick. The laminated lumber manufactured by using eucalypt wood veneers is used for preparing the composite floor board, so that the composite floor board has double excellent performance of solid wood floor boards and multi-layer solid wood composite floor boards.

Description

technical field [0001] The invention belongs to the technical field of wood, and in particular relates to a composite floor produced from eucalyptus veneer laminated timber and a preparation process thereof. Background technique [0002] Laminated veneer lumber (LVL) is a new type of wood-structured composite board made of multi-layer veneers arranged along the grain direction and glued together. Its characteristics not only retain the ideal natural characteristics of wood, but also have many solid wood saws Structural features that the wood does not have, such as the ubiquitous tree knots, twill, and other natural defects in the sawn wood are randomly distributed in the LVL, which makes the LVL have a small coefficient of variation in strength, high allowable stress, and good dimensional stability. . Moreover, the structure of LVL products is flexible, with various varieties and specifications. It can be used in high, medium and low grades / ends such as building structural ...

Claims

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Application Information

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IPC IPC(8): E04F15/04B32B21/13B32B7/12B32B37/06B32B37/10B32B37/12
Inventor 熊先青王雪花方露郭伟娟邹媛媛吴智慧
Owner 江苏格莱木业有限公司
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