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Glass fiber reinforcement poplar veneer laminated lumber and production method thereof

A technology of poplar veneer and glass fiber, which is applied in the jointing of wooden veneers, layered products, wood layered products, etc., can solve the problems of low strength, soft material, and low added value of products, and achieve excellent weather resistance performance, high-strength effect

Inactive Publication Date: 2014-01-01
ZHEJIANG YUHUA TIMBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the material of poplar is soft and low in strength. It is generally used as the core board of plywood and the raw material of fiberboard and particle board. Its use value is low and the added value of the product is not high.

Method used

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  • Glass fiber reinforcement poplar veneer laminated lumber and production method thereof
  • Glass fiber reinforcement poplar veneer laminated lumber and production method thereof
  • Glass fiber reinforcement poplar veneer laminated lumber and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Raw materials: Poplar veneer with a thickness of 1.8mm; E glass fiber cloth; KH550 aminosilane coupling agent; water-soluble phenolic resin adhesive (produced by Taier Adhesive (Guangdong) Co., Ltd.); wheat flour or soybean flour.

[0034] Physical characteristics of E glass fiber cloth

[0035]

[0036] Physical and chemical properties of water-soluble phenolic resin

[0037]

[0038] 2. Prepare

[0039] 1) Preparation of adhesive: 100 parts of water-soluble phenolic resin adhesive, 5%-10% of wheat flour or soybean flour, stir well to make adhesive.

[0040] 2) Glass fiber cloth pretreatment, in order:

[0041] ① Glass fiber cloth dewaxing and degreasing treatment

[0042] Soak the E-glass fiber cloth in washing powder liquid or alkaline water (1.0kg water plus about 20g washing powder) and boil for 3-4 hours, then rinse it with tap water several times, wash the lye, dry or dry it for later use.

[0043] ② Glass fiber cloth coupling agent treatment

[004...

Embodiment 2

[0057] Step 1, 2 wherein are identical with embodiment 1, all the other:

[0058] 3. veneer drying, shearing

[0059] Veneer drying requirements: control the moisture content to 8%-12%. After drying, take it out and seal it in a plastic bag.

[0060] Cutting specifications and quantity of veneer: length 400 mm×width 400 mm; quantity is 9 pieces.

[0061] 4. glued:

[0062] 1) Glue and dry

[0063] Adhesive amount on veneer: double-sided adhesive amount 250g / m 2 (Fiberglass cloth is regarded as 1 layer). After the water-soluble phenolic resin adhesive is prepared, apply the adhesive to one side of the veneer first according to the set amount of glue, after drying, then apply the adhesive to the other side of the veneer, and then dry it. Make billets.

[0064] 2) Blank assembly: It consists of 9 layers of poplar veneer 1 along the grain, and 1 layer of glass fiber cloth 2 is added between the upper and lower poplar veneers. figure 2 shown, and 2 layers of glass fiber ...

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Abstract

The invention discloses glass fiber reinforcement poplar veneer laminated lumber and a production method thereof and aims at providing the glass fiber reinforcement poplar veneer laminated lumber which is simple in production method, high in material utilization rate, wide in application, low in cost, high in strength and excellent in performance and the production method of the glass fiber reinforcement poplar veneer laminated lumber. Poplar veneers are stacked and glued through adhesive agents to form the laminated lumber. The glass fiber reinforcement poplar veneer laminated lumber is characterized in that glass fiber cloth layers are respectively clamped between the poplar veneers of a first layer or a second layer or a third layer above or below the laminated lumber. The poplar veneers serve as raw materials, glass fiber cloth serves as a reinforcement material, and the glass fiber reinforcement poplar veneer laminated lumber manufactured through the laminating compounding method has high strength and excellent weather resistance. The glass fiber reinforcement poplar veneer laminated lumber can not only serve as structural veneer laminated lumber, but also provide a basis for high-grade laminates of structural laminated lumber manufactured with poplar, and accordingly an effective approach is opened up for utilizing low-quality lumber such as man-made forests to manufacture structural wooden engineering materials.

Description

technical field [0001] The invention relates to wood materials, in particular to glass fiber reinforced poplar veneer laminated lumber and a production method thereof. Background technique [0002] The popularization and application of modern wood structure buildings can provide a new choice for the development of green, energy-saving and low-carbon buildings in my country. Laminated veneer lumber and glued lumber (glulam) for structural use are the main materials for the production of load-bearing timber components in modern timber buildings. However, wood structure buildings require a large amount of wood and wood engineering materials. Due to the lack of natural forest wood resources in my country, it is difficult to meet the needs of wood engineering structure material production. [0003] my country is the country with the largest artificial forest area in the world. The preserved area of ​​artificial forests has reached 62 million hectares, which is close to 1 / 3 of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27D1/08B32B21/10B32B37/06B32B37/10
Inventor 金月华王金林
Owner ZHEJIANG YUHUA TIMBER
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