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Boron type flame retardant directional shaving board and preparation method thereof

A technology of oriented strand board and wood shavings, used in flat products, manufacturing tools, other household appliances, etc., to achieve the effects of high internal bonding strength, improved internal bonding strength and low production cost

Inactive Publication Date: 2014-08-06
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems of existing flame-retardant oriented strand boards, and provides a method and product thereof for improving the internal bonding strength of boron-based flame-retardant oriented strand boards. This oriented strand board uses boric acid / borax as a flame retardant, and lauryl Methyl betaine is used as an additive to effectively improve the effect of existing oriented strand board flame retardants on the reduction of internal bonding strength

Method used

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  • Boron type flame retardant directional shaving board and preparation method thereof
  • Boron type flame retardant directional shaving board and preparation method thereof
  • Boron type flame retardant directional shaving board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Dry

[0032] The cut wood shavings are placed in a drying box to dry, so that the moisture content of the wood shavings is 3 to 5%;

[0033] 2. Spray flame retardant

[0034] Spray the compounded boric acid / boric acid and dodecyl dimethyl betaine into the glue mixer, and stir evenly to make flame-retardant wood shavings, wherein the weight of added boric acid, borax, dodecane The ratio of the weight of dimethyl betaine to the weight (dry) of wood shavings is 6:6:1.2:100;

[0035] 3. Dry again

[0036] The wood shavings applied with the flame retardant are placed in a drying box to dry, so that the moisture content of the wood shavings is 3 to 5%;

[0037] 4. Sizing

[0038] Firstly add the dried wood shavings into the glue mixer again, then spray the phenolic resin adhesive, and stir evenly to obtain sizing wood shavings, wherein the ratio of the total weight (dry) of the phenolic resin adhesive to the wood shavings is 9:100 ;

[0039] 5. Paving

[0040] Evenl...

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Abstract

The invention discloses a preparation method for a flame retardant directional shaving board and products thereof. In the preparation process of the flame retardant directional shaving board, fast-growing wood shavings with low price are used as raw materials, boric acid / borax with good flame retardant property, low toxicity and good smoke suppression effect is used as a flame retardant, and dodecyl dimethyl betaine with the characteristics of zwitterionic compounds is used as an auxiliary agent. The shaving board has the advantages of simple production technology, low production cost and small pollution; each property of the prepared flame retardant directional shaving board reaches the national standard, especially the internal bonding strength and the flame retardance are greatly improved, and the shaving board has a wide applicable scope.

Description

technical field [0001] The invention relates to a method for improving the performance of a functional wood-based panel and its product, in particular to a method for improving the internal bonding strength of a flame-retardant wood-based panel made of oriented shavings and its product. Background technique [0002] With the continuous reduction of natural forest resources in our country, the continuous increase of fast-growing forests and the implementation of the policy of prohibiting the logging of natural forests and restricting the cutting of large-diameter timber, the artificial fast-growing forest and small-diameter timber are used as raw materials. Oriented strand board (OSB) with the characteristics of small expansion coefficient, good stability, strong nail holding power, low glue consumption, moderate price, and wide source of raw materials has been vigorously developed. At the same time, due to the flammability of particleboard, its application in many fields is ...

Claims

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Application Information

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IPC IPC(8): B27N3/02B27N3/08B27K3/52
Inventor 王明枝曹金珍张宇
Owner BEIJING FORESTRY UNIVERSITY
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