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Composite flame retardant for plywood and preparation method of composite flame retardant

A composite flame retardant and plywood technology, which is applied in the jointing of wooden veneers, manufacturing tools, wood treatment, etc., can solve the problems of poor loss resistance and aging resistance, great influence on the mechanical properties of plywood, and insignificant flame retardant effect, etc. problem, to achieve good flame retardant effect, smoke suppression, environmental friendliness, and good smoke suppression effect

Inactive Publication Date: 2017-08-18
贵港市鑫宏木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although flame retardants are widely used in plywood, the existing flame retardants still have the following problems: the flame retardant effect is not obvious, the cost is high, the loss resistance and aging resistance are poor, and the mechanical properties of plywood are greatly affected.

Method used

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  • Composite flame retardant for plywood and preparation method of composite flame retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A composite flame retardant for plywood, comprising the following raw materials in parts by weight: 60 parts of polyethylene glycol, 5 parts of sodium bicarbonate, 0.1 part of polypropylene resin, 30 parts of vinyl acetate and 30 parts of boric acid; The molecular weight of polyethylene glycol is 600.

[0018] The preparation method of the composite flame retardant for plywood comprises the following steps: weighing 25 parts of polyethylene glycol, 5 parts of sodium bicarbonate, 0.1 part of polypropylene resin, 30 parts of vinyl acetate and 30 parts of boric acid, Add the pulverizer to pulverize to 120 mesh, then mix the components, and finally add water to prepare a wood composite flame retardant solution with a mass concentration of 10%.

[0019] The application of the composite flame retardant for plywood in the production of flame retardant fiberboard comprises the following production steps:

[0020] (1) Select a veneer with few knots and few defects, clean the su...

Embodiment 2

[0025] A composite flame retardant for plywood, comprising the following raw materials in parts by weight: 100 parts of polyethylene glycol, 15 parts of sodium bicarbonate, 0.5 parts of polypropylene resin, 40 parts of vinyl acetate and 40 parts of boric acid; The molecular weight of polyethylene glycol is 600.

[0026] The preparation method of the composite flame retardant for plywood comprises the following steps: weighing 35 parts of polyethylene glycol, 15 parts of sodium bicarbonate, 0.5 parts of polypropylene resin, 40 parts of vinyl acetate and 40 parts of boric acid, Add a pulverizer to pulverize to 150 mesh, then mix the components, and finally add water to prepare a wood composite flame retardant solution with a mass concentration of 15%.

[0027] The application of the composite flame retardant for plywood in the production of flame retardant fiberboard comprises the following production steps:

[0028] (1) Select a veneer with few knots and few defects, clean the...

Embodiment 3

[0033] A composite flame retardant for plywood, comprising the following raw materials in parts by weight: 80 parts of polyethylene glycol, 10 parts of sodium bicarbonate, 0.3 parts of polypropylene resin, 35 parts of vinyl acetate and 35 parts of boric acid; The molecular weight of polyethylene glycol is 600.

[0034] The preparation method of the composite flame retardant for plywood comprises the following steps: weighing 30 parts of polyethylene glycol, 10 parts of sodium bicarbonate, 0.3 parts of polypropylene resin, 35 parts of vinyl acetate and 35 parts of boric acid, Add a pulverizer to pulverize to 140 mesh, then mix the components, and finally add water to prepare a wood composite flame retardant solution with a mass concentration of 12%.

[0035] The application of the composite flame retardant for plywood in the production of flame retardant fiberboard comprises the following production steps:

[0036] (1) Select a veneer with few knots and few defects, clean the ...

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Abstract

The invention relates to the technical field of wood processing, in particular to a wood composite flame retardant and a preparation method thereof and application to production of flame-retardant plywood. The composite flame retardant for the plywood is prepared from the following raw materials by weight: 60-100 parts of polyethylene glycol, 5-15 parts of sodium bicarbonate, 0.1-0.5 part of polypropylene resin, 30-40 parts of vinyl acetate and 30-40 parts of boric acid. The raw materials of the wood composite flame retardant have a synergistic flame-retardant effect, and the flame retardant has the beneficial effects of being good in flame-retardant effect, low in toxicity, good in smoke suppressing property and environmentally friendly, and is low in price. The flame-retardant performance of the flame-retardant plywood prepared through the wood composite flame retardant can be remarkably improved, and the requirement of the national standard C-level fireproof grade can be met. The gluing strength and the maximum failure load of the flame-retardant plywood are both similar to plywood not treated with the flame retardant.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to a composite flame retardant for plywood and its preparation method and application. Background technique [0002] Wood-based panels are boards or molded products that are made of wood or other non-wood plants, separated into various unit materials by certain mechanical processing, and then pressed with or without adhesives and other additives. Wood-based panels mainly include three categories: plywood, particleboard and fiberboard. Among them, plywood has the best strength and volume stability, and is also the most widely used in practical applications. Plywood is one of the commonly used materials for furniture and building decoration. Wood-based panels are actually a kind of wood material, which is a combustible material with a very low ignition point. Therefore, it is often necessary to add flame retardants for flame-retardant treatment. The quality of flame retardant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52B27K3/02B27K5/04B27D1/08
CPCB27K3/52B27D1/08B27K3/02B27K5/04B27K2240/30
Inventor 杨金雄曾连军杨健傅文森
Owner 贵港市鑫宏木业有限公司
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