Flame retardant for plywood glue and application of flame retardant

A technology for plywood and flame retardant, which is applied in the direction of adhesive application device, bonding of wooden veneers, wood treatment, etc., can solve the problems of reducing the quality of plywood, high production cost, poor flame retardant effect, etc., saving drying space, Low production cost and improved flame retardant properties

Inactive Publication Date: 2019-07-30
烟台格瑞恩高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high production cost and low production efficiency of the traditional process, the direct addition of flame retardants to the adhesive reduces the quality of plywood and poor flame retardant effect, and provides a low production cost, high production efficiency and good flame retardant effect. Flame retardant for plywood

Method used

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  • Flame retardant for plywood glue and application of flame retardant
  • Flame retardant for plywood glue and application of flame retardant
  • Flame retardant for plywood glue and application of flame retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take 30kg of flame retardant and 100kg of urea-formaldehyde resin adhesive, mix and stir evenly, then add 28kg of flour to the mixture of flame retardant and adhesive, continue stirring, and get the required flame retardant adhesive after mixing evenly.

[0036] Among them, the flame retardant is compounded by the following components by weight: 50kg of modified aluminum hydroxide, 12kg of ammonium phosphate, 6kg of diammonium phosphate, and 35kg of zinc borate. The decomposition temperature of the flame retardant is 310°C.

[0037] The 1.5mm poplar veneer is pre-dried to make the moisture content of the veneer 8% to 10%. Using the flame retardant configured above, glue the poplar veneer on both sides at room temperature through a double-sided gluing machine, and the amount of glue is 420g / m 2 .

[0038] Make imposition of 7 poplar veneers after gluing, and let them stand at room temperature and pressure of 1.0MPa for 14h. Then put the impositioned poplar veneer into ...

Embodiment 2

[0041] Take 32kg of flame retardant and 100kg of urea-formaldehyde resin adhesive, mix and stir evenly, then add 30kg of flour to the mixture of flame retardant and adhesive, continue to stir, and mix evenly to obtain the required flame retardant adhesive.

[0042] Among them, the flame retardant is compounded by the following components by weight: 55kg of modified magnesium hydroxide, 10kg of ammonium polyphosphate, 8kg of ammonium chloride, and 25kg of borax. The decomposition temperature of the flame retardant is 300°C.

[0043] The 1.5mm poplar veneer is pre-dried to make the moisture content of the veneer 8% to 10%. Using the flame retardant configured above, glue the poplar veneer on both sides at room temperature through a double-sided gluing machine, and the amount of glue is 480g / m 2 .

[0044] Make imposition of 7 poplar veneers after gluing, and let them stand at room temperature and pressure of 0.8MPa for 10h. Then put the imposition poplar veneer into the cold p...

Embodiment 3

[0047] Take 31kg of flame retardant and 100ka of urea-formaldehyde resin adhesive, mix and stir evenly, then add 25kg of flour to the mixture of flame retardant and adhesive, continue stirring, and get the required flame retardant adhesive after mixing evenly.

[0048] Among them, the flame retardant is compounded by the following components by weight: 7kg of modified magnesium hydroxide, 53kg of modified aluminum hydroxide, 15kg of melamine polyphosphate, 4kg of ammonium phosphate, and 30kg of ammonium pentaborate. The decomposition temperature of the fuel is 308°C.

[0049] The 1.5mm poplar veneer is pre-dried to make the moisture content of the veneer 8% to 10%. Using the flame retardant configured above, double-sided gluing of 1.5mm poplar veneer at room temperature is carried out through a double-sided gluing machine, and the amount of glue is 520g / m 2 .

[0050] Make imposition of 7 poplar veneers after gluing, and let them stand for 12 hours at room temperature and pres...

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PUM

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Abstract

The invention relates to a flame retardant for plywood glue and application of the flame retardant. The flame retardant comprises, by weight, 50-60 parts of amphoteric hydroxide, 10-15 parts of phosphate compounds, 4-8 parts of nitrogen-containing compounds and 25-35 parts of borate compounds. According to the flame retardant, due to the reasonable proportion of the four elements of P, N, B and Al / Mg, the synergistic flame-retardant effect is achieved, the excellent flame-retardant effect and the smoke-inhibiting effect are achieved, and the flame-retardant effect can meet the national flame-retardant B1-grade standard. The flame retardant is good in stability during processing, and the flame retardant is good in dispersibility in the glue, can be directly added into an adhesive and can improve the bonding strength of a plate. A production method of the flame retardant is simple in preparation process; compared with a soaking type flame retardant, the airing site and the labor and equipment cost are saved, the production cost is reduced, the production benefit and the economic benefit are improved, and the flame retardant can be widely applied to the fields of furniture, floors, wallboards and buildings.

Description

technical field [0001] The invention relates to the technical field of flame retardants and their compounding, in particular to a flame retardant for plywood glue and its application. Background technique [0002] The traditional process of flame-retardant plywood is to soak the plywood veneer in the flame-retardant solution for a long time, and then apply glue to make the board after drying. This process is not only complex, time-consuming, high cost and low production efficiency. In the prior art, the traditional process is widely used. Due to production defects, there is already a research and development application of adding flame retardants directly to the adhesive to make plywood. In the application of flame retardant directly added to the adhesive technology, the addition of flame retardant will destroy the stability of the adhesive, affect the moisture content of the board, and then reduce the quality of the plywood, and make the produced plywood less flame retarda...

Claims

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Application Information

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IPC IPC(8): B27K3/32B27D1/08B27G11/00
CPCB27D1/08B27G11/00B27K3/32B27K2240/30
Inventor 张雪刘春晓
Owner 烟台格瑞恩高分子材料有限公司
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