Palm wood plywood and preparation method thereof

A palm wood and plywood technology, applied in the field of palm wood plywood and its preparation, can solve the problems of poor product quality, poor mechanical properties and low dimensional stability of the palm wood veneer, and achieve enhanced modified palm veneer, good Promoting and commercial prospects, good effect of dimensional stability

Inactive Publication Date: 2018-11-16
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main disadvantages of existing products: due to the poor properties of palm trees, low strength, large density difference from inside to outside, and strong hygroscopicity, the palm boards prepared

Method used

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  • Palm wood plywood and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

[0036] Such as figure 1 As shown, a palm wood plywood includes a surface board and a core board. The surface board uses a high-density impregnated palm wood veneer, and the core board uses a low-density impregnated palm wood veneer.

[0037] Preparation:

[0038] S1. Veneer peeling: the palm wood is processed into palm wood veneer with a peeling machine, the thickness of the palm wood veneer is 3.0mm;

[0039] S2, single veneer drying: use a roller dryer to dry the palm wood veneer in step S1, the drying temperature is 150℃-180℃, the drying time is 3-5min, and the moisture content of the dried palm wood veneer Control at about 12%;

[0040] S3, veneer classification: remove the cracked veneer from the palm wood veneer after drying in step S2, and divide it into high-density palm wood veneer and low-density palm wood veneer. Low-density veneer density grade Use 0.35-0.45g / cm 3 , High-density veneer density grade adopts 0.45-0.56cm 3 ;

[0041] S4. Veneer impregnation...

Example Embodiment

[0048] Example 2

[0049] A palm wood plywood includes a surface board and a core board. The surface board adopts a high-density impregnated palm wood veneer, and the core board adopts a low-density impregnated palm wood veneer.

[0050] Preparation:

[0051] S1. Veneer peeling: the palm wood is processed into palm wood veneer with a rotary cutting machine, the thickness of the palm wood veneer is 5mm;

[0052] S2, one-time drying of veneer: drying the palm wood veneer in step S1 with a roller dryer, the drying temperature is 150°C-180°C, and the drying time is 3-5min;

[0053] S3, veneer classification: remove the cracked veneer from the palm wood veneer after drying in step S2, and divide it into high-density palm wood veneer and low-density palm wood veneer. Low-density veneer density grade Use 0.35-0.45g / cm 3 , High-density veneer density grade adopts 0.45-0.56cm 3 ;

[0054] S4. Veneer impregnation: the high-density palm wood veneers and low-density palm wood veneers classified in ...

Example Embodiment

[0061] Example 3

[0062] A palm wood plywood includes a surface board and a core board. The surface board adopts a high-density impregnated palm wood veneer, and the core board adopts a low-density impregnated palm wood veneer.

[0063] Preparation:

[0064] S1. Veneer peeling: the palm wood is processed into palm wood veneer with a rotary cutting machine, the thickness of the palm wood veneer is 8.0mm;

[0065] S2, one-time drying of veneer: drying the palm wood veneer in step S1 with a roller dryer, the drying temperature is 150°C-180°C, and the drying time is 3-5min;

[0066] S3, veneer classification: remove the cracked veneer from the palm wood veneer after drying in step S2, and divide it into high-density palm wood veneer and low-density palm wood veneer. Low-density veneer density grade Use 0.35-0.45g / cm 3 , High-density veneer density grade adopts 0.45-0.56cm 3 ;

[0067] S4. Veneer impregnation: the high-density palm wood veneers and low-density palm wood veneers classified i...

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Abstract

The invention discloses palm wood plywood and a preparation method thereof. The plywood comprises a surface board and a core board, a high-density palm impregnated wood single board formed by the impregnating of impregnated resin is adopted as the surface board, a low-density palm impregnated wood single board formed by the impregnating of the impregnated resin is adopted as the core board, the content of the impregnated resin in the high-density palm impregnated wood single board is 20-55%, and the content of the impregnated resin in the low-density palm impregnated wood single board is 30-65%, the solid content of the impregnated resin is 30-50%, urea-formaldehyde resin, phenol formaldehyde resin, melamine resin or melamine modified urea-formaldehyde resin is adopted, and the preparationmethod of the plywood is further disclosed. The palm wood plywood has the advantages that the mechanical performance and the dimensional stability are excellent and can meet related national standards.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels, and in particular relates to a palm wood plywood and a preparation method thereof. Background technique [0002] As an abundant economic forest tree species in Southeast Asia, palm trees mainly use their palm fruit for oil extraction. Generally, when its age exceeds 20 years, its fruit yield declines sharply, and it needs to be cut in rotation. [0003] At present, the felled palm trees have not been effectively developed and utilized, and are often discarded in the woodland to rot naturally, which not only affects the planting of a new round of palm trees, but also easily causes forest pests and environmental problems. Therefore, how to make full use of palm tree resources and develop new wood products has positive significance no matter for saving wood resources, protecting the environment or promoting the sustainable development of forestry industry. [0004] The main disadvantages...

Claims

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Application Information

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IPC IPC(8): B27D1/08B27D1/10B27D5/00B27K3/36
CPCB27D1/08B27D1/10B27D5/00B27K3/36
Inventor 梅长彤周国强崔举庆周晓燕潘明珠
Owner NANJING FORESTRY UNIV
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