CN108972751A - Environment friendly aldehyde-free fire retardant and wood-based plate processing method - Google Patents

Environment friendly aldehyde-free fire retardant and wood-based plate processing method Download PDF

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Publication number
CN108972751A
CN108972751A CN201810686657.6A CN201810686657A CN108972751A CN 108972751 A CN108972751 A CN 108972751A CN 201810686657 A CN201810686657 A CN 201810686657A CN 108972751 A CN108972751 A CN 108972751A
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CN
China
Prior art keywords
fire retardant
wood
plate
hot pressing
adhesive
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CN201810686657.6A
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Chinese (zh)
Inventor
韩佳琪
谢剑玲
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广西浙缘农业科技有限公司
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Priority to CN201810686657.6A priority Critical patent/CN108972751A/en
Publication of CN108972751A publication Critical patent/CN108972751A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D1/00Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08Manufacture of shaped articles; Presses specially designed therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D3/00Veneer presses; Press plates; Plywood presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D5/00Other working of veneer or plywood specially adapted to veneer or plywood
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D5/00Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/006Trimming, chamfering or bevelling edgings, e.g. lists
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00Applying adhesives or glue to surfaces of wood to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02Processes; Apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02Processes; Apparatus
    • B27K3/12Impregnating by coating the surface of the wood with an impregnating paste
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16Inorganic impregnating agents
    • B27K3/32Mixtures of different inorganic impregnating agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00Pretreatment of moulding material
    • B27N1/02Mixing the material with binding agent
    • B27N1/0209Methods, e.g. characterised by the composition of the agent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/10Moulding of mats
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/10Moulding of mats
    • B27N3/12Moulding of mats from fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/18Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • B27N3/183Forming the mat-edges, e.g. by cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/20Moulding or pressing characterised by using platen-presses
    • B27N3/203Moulding or pressing characterised by using platen-presses with heating or cooling means

Abstract

The invention discloses a kind of environment friendly aldehyde-free fire retardant and wood-based plate processing methods, fire retardant of the invention includes magnesium hydroxide, aluminium hydroxide, superfine zinc borate, nanometer Mg/Al-LDH, talcum powder and modifying agent composition, for inorganic fire retardants, without formaldehyde, nontoxic free from extraneous odour, composition is simple, environmentally protective;The difference of the characteristics of when manufacturing wood-based plate according to plate, the application method of fire retardant is also different, so that the flame retardant effect of fire retardant and being performed to most preferably with the compatibility of adhesive, that is: glued board be include that juggle is peeled into veneer or including flitch slicing at veneer, it is formed again with adhesive gluing, in such a way that glued board is immersed in fire retardant, fire retardant can effectively be attached to the surface of glued board, while improving the anti-flammability of glued board, the usage amount that also can be reduced fire retardant, reduces production cost;And it includes the soft lignocellulosic of quality that fiberboard, which is made of, by the way that fire retardant of the present invention is added in adhesive, can improve the flame retardant property of plate.

Description

Environment friendly aldehyde-free fire retardant and wood-based plate processing method

Technical field

The present invention relates to a kind of building materials plates, and in particular to a kind of environment friendly aldehyde-free fire retardant and wood-based plate processing method belong to In building material technical field.

Background technique

Wood-based plate (wood based panel) is centainly machined using timber or other non-wood plants as raw material After being separated into various unit materials, apply or do not apply plate or molded article made of adhesive and other additives gluing. It mainly include the three categories products such as glued board, wood shavings (particle) plate and fiberboard, extension product and deep processed product reach up to a hundred Kind, it is widely applied to the industries such as architectural engineering, interior decoration, Furniture manufacture, packaging.But it is included in the constitutive material of wood-based plate Mostly plant fiber is combustible material, therefore easily causes fire.It is reported that 21% or more fire is and the fibers such as timber Caused by material, and in house 70% be because wood materials it is inflammable caused by.Therefore, the flame retardant property for improving wood-based plate is to reduce One of behave of occurrence index.

It in the prior art, is more the improvement and spy of the adhesive used to manufacturing process for the research of wood-based plate Rope, such as the Chinese invention patent that Authorization Notice No. is CN105295740B disclose the liquid adhesive of a kind of no aldehyde and artificial Plate processing method enhances viscose glue ability and reduction wood-based plate of the wood-based plate in production by the liquid adhesive of invention Processing cost, and the function with no aldehyde, environmental protection;For another example application publication number is the Chinese invention patent Shen of CN108130022A Please disclose the preparation method of a kind of adhesive for artificial board of straw and artificial board of straw, by the adhesive of invention come The curing rate of viscose glue is improved, and does not contain formaldehyde, reduces cost, environmentally protective.It is not difficult to find out by document disclosed above, it is existing Somebody make plate flame retardant property mostly be by will have the ingredient of fire retardation to be added into adhesive, after mixing with glue Stick is uniformly applied between plate layer and plate layer together.Although this kind of method applying method is simple, the production cost of wood-based plate compared with It is low, but there are the following problems:

1) flame-retardant composition easily occur cannot be compatible well with adhesive, will affect the uniformity of fire retardant application, then The flame retardant effect of wood-based plate entirety is caused to decline;

2) it is included in adhesive in the process of wood-based plate, is coated between plate and plate, is i.e. the inside of wood-based plate There is flame retardant property, and plate face does not have flame-retardant composition, therefore the flame retardant effect that will lead to plate face is poor, influences the anti-of wood-based plate entirety Fire and flame retarding function;

3) although existing wood-based plate uses the adhesive after improvement or the surface layer environmental protection coating material after improvement, make At wood-based plate can still have the peculiar smell of glue and coating, it will influence the comfort of the people of contact plate, and for a long time can not If peculiar smell is dispelled, often breathing then influences the health of people.

Summary of the invention

Goal of the invention of the invention is, in view of the above-mentioned problems, providing a kind of environment friendly aldehyde-free fire retardant, this kind of fire retardant is free of Aldehydes and benzene constituents, it is environment-protecting and non-poisonous, and will not influence the original plate property of wood-based plate, the resistance of wood-based plate can be effectively improved Performance is fired, the application security of plate is improved.

In order to solve the above technical problems, the invention adopts the following technical scheme:

A kind of environment friendly aldehyde-free fire retardant, by weight, including following raw material is made: 60~100 parts of magnesium hydroxide, hydrogen-oxygen Change 50~90 parts of aluminium, 12~24 parts of 25~40 part, nanometer Mg/Al-LDH of superfine zinc borate, 10~25 parts of talcum powder, modifying agent 1 ~11 parts.

Above scheme, further, for the compatibility for improving magnesium hydroxide and aluminium hydroxide and other components, the hydrogen-oxygen Change magnesium and surface of aluminum hydroxide coats silane coupling agent.

Above scheme, as a preferred embodiment, the modifying agent can be nano silica.

The present invention also provides a kind of wood-based plate processing methods using above-mentioned fire retardant, which is glued board Processing method, comprising: 1) by adhesive coated on wood single-plate, then several pieces of wood single-plates are sequentially stacked and obtain plate Base;2) slab is sent directly into hot press and carries out hot pressing;3) then, the heating platen after hot pressing is neatly stacked, is cooled to room temperature After carry out saw side, polishing, obtain thick plate;4) surface for the thick plate that step 3) processing obtains Waterproof is uniformly coated to apply Expect and after natural drying, be put by diluted fire retardant dipping 1.5~3.0h get product.

Above-mentioned processing method is applied into the processing method in fiberboard, comprising: 1) gluing is separately added into wood fibre Agent, above-mentioned fire retardant and water, are thoroughly mixed, and obtain wood fibre blank;2) the wood fibre blank for obtaining step 1) Mat formation on teel pallet, be then fed into hot press and carry out hot pressing, obtains the thick plate of fiber;3) the thick plate plate of obtained fiber is whole It is neat to stack, saw side, polishing are carried out after being cooled to room temperature;4) above-mentioned fire retardant and adhesive are stirred according to a certain percentage mixed It closes, is then uniformly sprayed on the surface of the thick plate of fiber made from step 3);5) surface of the thick plate of fiber obtained in step 4) processing Uniformly coating aqueous waterproofing paint, gets product after natural drying.

The present invention also provides a kind of wood-based plate processing methods using above-mentioned fire retardant, which is particieboard Processing method, comprising: 1) adhesive, above-mentioned fire retardant and wood shavings are sufficiently mixed by certain mass ratio, and mated formation into more The slab of layer structural particleboard;2) slab is sent directly into hot press and carries out hot pressing;3) heating platen after step 2) hot pressing is whole It is neat to stack, saw side, polishing are carried out after being cooled to room temperature, and obtain thick plate;4) above-mentioned fire retardant is pressed and adhesive is pressed centainly Weight ratio is mixed to get flame retarding agents, and the surface of the thick plate obtained in step 3) is uniformly then coated the flame retarding agents, Naturally dry is got product.

It is included in by adopting the above technical scheme, the invention has the following advantages:

1. fire retardant of the invention includes magnesium hydroxide, aluminium hydroxide, superfine zinc borate, nanometer Mg/Al-LDH, talcum powder It is formed with modifying agent, is inorganic fire retardants, be free of formaldehyde, nontoxic free from extraneous odour, composition is simple, environmentally protective.

2. the difference of the characteristics of when manufacturing wood-based plate according to plate, the application method of fire retardant is also different, so that fire-retardant The flame retardant effect of agent and performed to most preferably with the compatibility of adhesive, it may be assumed that glued board be include juggle be peeled into veneer or including Flitch slicing is formed at veneer, then with adhesive gluing, and in such a way that glued board is immersed in fire retardant, fire retardant can have The surface for being attached to glued board of effect, while improving the anti-flammability of glued board, moreover it is possible to which the usage amount for reducing fire retardant reduces Production cost;And it includes the soft lignocellulosic of quality that fiberboard, which is made of, it is fire-retardant by the way that the present invention is added in adhesive Agent can improve the flame retardant property of plate.

3, fire retardant of the invention is applied in the manufacture craft of wood-based plate, is included in the nanometer being added in fire retardant Mg/Al-LDH and talcum powder component make the smoke suppressing effect of wood-based plate obtained than the flame-retardant composition that contains in adhesive in the market Flame retardant effect compare, can be improved 10%~18%, while smoke suppressing effect of wood-based plate during fire-retardant can also be improved.

Specific embodiment

The invention will be further described with reference to embodiments.

Embodiment 1

Environment friendly aldehyde-free fire retardant, by weight, including following raw material is made: 60 parts of magnesium hydroxide, 50 parts of aluminium hydroxide, 12 parts of 25 part, nanometer Mg/Al-LDH of superfine zinc borate, 10 parts of talcum powder, 1 part of modifying agent.Wherein, the magnesium hydroxide Silane coupling agent is coated with surface of aluminum hydroxide.The modifying agent is nano silica.In the present embodiment, the hydroxide Magnesium and aluminium hydroxide are powder agent.

The fire retardant mixes the preparation method comprises the following steps: superfine zinc borate will be carried out with talcum powder first, and uses grinder Device is ground to the powder of Nano Particle, and it is stand-by to obtain powders A;Then magnesium hydroxide and aluminium hydroxide is taken to mix, grinding machine is ground It is milled to the powder of Nano Particle, obtains powder B, then the surface of powder B is coated using silane coupling agent, wherein silane Mass ratio=2~5:1 of coupling agent and powder B;Nanometer Mg/Al-LDH and modifying agent are finally taken by weight, then are separately added into Powders A, powder B are thoroughly mixed under vacuum conditions, obtain powder C, by deionized water: the weight of powder C=1.5~3.8 Measure ratio, deionized water is added into powder C, after mixing with grinder grind 1~2.5h after to obtain the final product.

A kind of wood-based plate processing method, the processing method are the processing methods of glued board, comprising: 1) adhesive coated exist On wood single-plate, then several pieces of wood single-plates are sequentially stacked and obtain slab;2) slab hot press is sent directly into carry out Hot pressing, hot pressing temperature are 90 degrees Celsius, hot pressing pressure 10kg/cm2;3) then, the heating platen after hot pressing is neatly stacked, it is cold But to saw side, polishing is carried out after room temperature, thick plate is obtained;4) by above-mentioned fire retardant in fire retardant: water=0.5:110 ratio is dilute Then the surface for the thick plate that step 3) processing obtains uniformly is coated aqueous waterproofing paint by the retardant solution being interpreted into, natural The thick plate 1.5h in retardant solution is impregnated into after drying to get product.

Embodiment 2

With embodiment 1 the difference is that a kind of wood-based plate processing method, which is the processing side of fiberboard Method, comprising: 1) be separately added into adhesive, above-mentioned fire retardant and water in the wood fibre to moisture content lower than 6%, be sufficiently stirred mixed Close, wherein wood fibre: adhesive: fire retardant: mass ratio=1:0.2:0.1:1.1 of water obtains wood fibre blank;2) will The wood fibre blank that step 1) obtains is mated formation on teel pallet, is then fed into hot press and is carried out hot pressing, and hot pressing temperature is 115 degrees Celsius, hot pressing pressure 12kg/cm2, hot pressing time is 25 minutes, obtains the thick plate of fiber;3) by the thick plate of obtained fiber Plate is neatly stacked, and saw side, polishing are carried out after being cooled to room temperature;4) above-mentioned fire retardant is pressed into fire retardant: adhesive=1.0:2.5 Ratio is stirred mixing, is then uniformly sprayed on the surface of the thick plate of fiber made from step 3);5) it is obtained in step 4) processing The surface of the thick plate of fiber uniformly coats aqueous waterproofing paint, gets product after natural drying.

Embodiment 3

With embodiment 1 the difference is that a kind of wood-based plate processing method, which is the processing side of particieboard Method, comprising: 1) be in mass ratio that 0.20:0.1:100 is sufficiently mixed, and is mated formation by adhesive, above-mentioned fire retardant and wood shavings At the slab of multiple-layered wood chipboard;2) slab is sent directly into hot press and carries out hot pressing, hot pressing temperature is 90 degrees Celsius, hot pressing Pressure is 10kg/cm2;3) heating platen after step 2) hot pressing is neatly stacked, saw side, polishing is carried out after being cooled to room temperature, is obtained To thick plate;4) by above-mentioned fire retardant by fire retardant: adhesive=0.4:1 weight ratio is mixed to get flame retarding agents, then will The flame retarding agents are uniformly coated in the surface for the thick plate that step 3) obtains, naturally dry is got product.

Embodiment 4

Environment friendly aldehyde-free fire retardant, by weight, including following raw material is made: 100 parts of magnesium hydroxide, aluminium hydroxide 90 Part, 24 parts of 40 part, nanometer Mg/Al-LDH of superfine zinc borate, 25 parts of talcum powder, 11 parts of modifying agent.Wherein, the magnesium hydroxide Silane coupling agent is coated with surface of aluminum hydroxide.The modifying agent is nano silica.

The processing method of the environment friendly aldehyde-free fire retardant is identical as in embodiment 1.

Above-mentioned fire retardant is applied in wood-based plate processing method, which is the processing method of glued board, comprising: 1) by adhesive coated on wood single-plate, then several pieces of wood single-plates is sequentially stacked and obtain slab;2) slab is straight It picks and carries out hot pressing into hot press, hot pressing temperature is 100 degrees Celsius, hot pressing pressure 14kg/cm2;It 3) then, will be after hot pressing Heating platen is neatly stacked, and saw side, polishing are carried out after being cooled to room temperature, obtains thick plate;4) above-mentioned fire retardant is pressed into fire retardant: water The dilution proportion of=2.1:110 at retardant solution, then the surface of thick plate that step 3) processing obtains uniformly is coated The thick plate is impregnated into 3.0h in retardant solution after natural drying and got product by aqueous waterproofing paint.

Embodiment 5

With embodiment 4 except that: a kind of wood-based plate processing method, the processing method are the processing methods of fiberboard, Include: to be separately added into adhesive, above-mentioned fire retardant and water in the wood fibre for 1) being lower than 6% to moisture content, be thoroughly mixed, Wherein wood fibre: adhesive: fire retardant: mass ratio=1:0.5:0.2:1.7 of water obtains wood fibre blank;It 2) will step The rapid wood fibre blank 1) obtained is mated formation on teel pallet, is then fed into hot press and is carried out hot pressing, hot pressing temperature 135 Degree Celsius, hot pressing pressure 18kg/cm2, hot pressing time is 35 minutes, obtains the thick plate of fiber;3) by the thick plate plate of obtained fiber It is neat to stack, saw side, polishing are carried out after being cooled to room temperature;4) above-mentioned fire retardant is pressed into fire retardant: adhesive=1.5:4.1 ratio Example is stirred mixing, is then uniformly sprayed on the surface of the thick plate of fiber made from step 3);5) fibre obtained in step 4) processing The surface for tieing up thick plate uniformly coats aqueous waterproofing paint, gets product after natural drying.

Embodiment 6

With embodiment 4 except that: a kind of wood-based plate processing method, the processing method are the processing methods of particieboard, It include: 1) by adhesive, above-mentioned fire retardant and wood shavings is in mass ratio that 0.35:0.2:100 is sufficiently mixed, and is mated formation into more The slab of layer structural particleboard;2) slab is sent directly into hot press and carries out hot pressing, hot pressing temperature is 100 degrees Celsius, hot pressing pressure Power is 14kg/cm2;3) heating platen after step 2) hot pressing is neatly stacked, saw side, polishing is carried out after being cooled to room temperature, is obtained Thick plate;4) by above-mentioned fire retardant by fire retardant: adhesive=0.7:1.5 weight ratio is mixed to get flame retarding agents, then will The flame retarding agents are uniformly coated in the surface for the thick plate that step 3) obtains, naturally dry is got product.

Embodiment 7

Environment friendly aldehyde-free fire retardant, by weight, including following raw material is made: 60~100 parts of magnesium hydroxide, aluminium hydroxide 55 parts, 14 parts of 30 part, nanometer Mg/Al-LDH of superfine zinc borate, 15 parts of talcum powder, 10 parts of modifying agent.Wherein, the hydroxide Magnesium and surface of aluminum hydroxide coat silane coupling agent.The modifying agent is nano silica.

The processing method of the environment friendly aldehyde-free fire retardant is identical as in embodiment 1.

A kind of wood-based plate processing method, the processing method are the processing methods of glued board, comprising: 1) adhesive coated exist On wood single-plate, then several pieces of wood single-plates are sequentially stacked and obtain slab;2) slab hot press is sent directly into carry out Hot pressing, hot pressing temperature are 95 degrees Celsius, hot pressing pressure 12kg/cm2;3) then, the heating platen after hot pressing is neatly stacked, it is cold But to saw side, polishing is carried out after room temperature, thick plate is obtained;4) by above-mentioned fire retardant in fire retardant: water=0.8:110 ratio is dilute Then the surface for the thick plate that step 3) processing obtains uniformly is coated aqueous waterproofing paint by the retardant solution being interpreted into, natural The thick plate 1.8h in retardant solution is impregnated into after drying to get product.

Embodiment 8

With embodiment 7 except that: a kind of wood-based plate processing method, the processing method are the processing methods of fiberboard, Include: to be separately added into adhesive, above-mentioned fire retardant and water in the wood fibre for 1) being lower than 6% to moisture content, be thoroughly mixed, Wherein wood fibre: adhesive: fire retardant: mass ratio=1:0.4:0.1:1.5 of water obtains wood fibre blank;It 2) will step The rapid wood fibre blank 1) obtained is mated formation on teel pallet, is then fed into hot press and is carried out hot pressing, hot pressing temperature 120 Degree Celsius, hot pressing pressure 15kg/cm2, hot pressing time is 30 minutes, obtains the thick plate of fiber;3) by the thick plate plate of obtained fiber It is neat to stack, saw side, polishing are carried out after being cooled to room temperature;4) above-mentioned fire retardant is pressed into fire retardant: adhesive=1.2:2.8 ratio Example is stirred mixing, is then uniformly sprayed on the surface of the thick plate of fiber made from step 3);5) fibre obtained in step 4) processing The surface for tieing up thick plate uniformly coats aqueous waterproofing paint, gets product after natural drying.

Embodiment 9

With embodiment 4 except that: a kind of wood-based plate processing method, the processing method are the processing methods of particieboard, It include: 1) by adhesive, above-mentioned fire retardant and wood shavings is in mass ratio that 0.28:0.1:100 is sufficiently mixed, and is mated formation into more The slab of layer structural particleboard;2) slab is sent directly into hot press and carries out hot pressing, hot pressing temperature is 95 degrees Celsius, hot pressing pressure For 12kg/cm2;3) heating platen after step 2) hot pressing is neatly stacked, saw side, polishing is carried out after being cooled to room temperature, obtained thick Plate;4) by above-mentioned fire retardant by fire retardant: adhesive=0.5:1.2 weight ratio is mixed to get flame retarding agents, then will be The surface for the thick plate that step 3) obtains uniformly coats the flame retarding agents, and naturally dry is got product.

Test example 1

Detection: to fire retardant made from embodiment 1, embodiment 2 and embodiment 3, referring to GB/21723-2008 national standard Physicochemical property detection is carried out, testing result such as table 1:

Physicochemical property GB/T21723-2008 Embodiment 1 Embodiment 2 Embodiment 3 Flame retardant property GB 8624-2012 A1 grades A1 grades A1 grades Flue gas toxity GB/T20285-2006 AQ1 AQ1 AQ1

Table 1

As it can be seen from table 1 environment friendly aldehyde-free fire retardant of the present invention, excellent fireproof performance are safe and non-toxic.

To artificial plate made from 1~embodiment of embodiment 9, carried out referring to GB/21723-2008 national standard physical and chemical Performance detection detects burst size of methanal referring to GB/T17657-1999 national standard, testing result such as table 2:

Table 2

Show reach national mark to artificial plate produced by the present invention is used from every detection data of upper table 2 Standard, and burst size of methanal is zero, flame retardant property reaches A1 grades non-ignitable, and flue gas toxity meets the requirement of safe level-one.

Test example 2

In embodiment 1, embodiment 4 and embodiment 7, in each raw material of fire retardant composition, nanometer Mg/Al-LDH and cunning are rejected After this two groups of components of mountain flour, the component of remaining component and the production method of fire retardant are identical with embodiment 1, and will pick Fire retardant after removing nanometer Mg/Al-LDH and talcum powder is applied in wood-based plate processing, the processing method and implementation of wood-based plate 1~embodiment of example 9 it is identical.Artificial plate obtained carries out physicochemical property inspection referring to GB/21723-2008 national standard It surveys, detects burst size of methanal referring to GB/T17657-1999 national standard, testing result such as table 3:

Table 3

From every detection data of upper table 3 show to weed out nanometer Mg/Al-LDH and talcum powder after fire retardant be applied to In wood-based plate processing, artificial plate obtained, although the standard of country, the static bending strength of wood-based plate, interior knot can also be reached It closes intensity and flame retardant property is lowered, and this index of burst size of methanal increases.Therefore, nanometer Mg/Al-LDH and cunning are weeded out Fire retardant after mountain flour had both influenced the intensity index of wood-based plate, also influenced formaldehyde and fire-retardant index.

Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to In the covered the scope of the patents of the present invention.

Claims (6)

1. environment friendly aldehyde-free fire retardant, which is characterized in that by weight, including following raw material is made: magnesium hydroxide 60~100 Part, 50~90 parts of aluminium hydroxide, 12~24 parts of 25~40 part, nanometer Mg/Al-LDH of superfine zinc borate, 10~25 parts of talcum powder, 1~11 part of modifying agent.
2. environment friendly aldehyde-free fire retardant according to claim 1, it is characterised in that: the magnesium hydroxide and surface of aluminum hydroxide Coat silane coupling agent.
3. environment friendly aldehyde-free fire retardant according to claim 1, it is characterised in that: the modifying agent is nano silica.
4. a kind of wood-based plate processing method, which is the processing method of glued board, which is characterized in that including following step It is rapid:
1) by adhesive coated on wood single-plate, then several pieces of wood single-plates is sequentially stacked and obtain slab;
2) slab is sent directly into hot press and carries out hot pressing, hot pressing temperature is 90 to 100 degrees Celsius, hot pressing pressure 10kg/cm2 To 14kg/cm2
3) heating platen after hot pressing is neatly stacked, saw side, polishing is carried out after being cooled to room temperature, obtains thick plate;
4) by above-mentioned fire retardant press fire retardant: water=0.5~2.1:110 dilution proportion at retardant solution, then will step The surface of the thick plate that processing obtains rapid 3) uniformly coats aqueous waterproofing paint, and the thick plate is impregnated into resistance after natural drying 1.5~3.0h is got product in combustion agent solution.
5. a kind of wood-based plate processing method, which is the processing method of fiberboard, which is characterized in that including following step It is rapid:
1) it is separately added into adhesive, above-mentioned fire retardant and water in the wood fibre to moisture content lower than 6%, is thoroughly mixed, Wherein wood fibre: adhesive: fire retardant: mass ratio=1:0.2~0.5:0.1~0.2:1.1~1.7 of water obtain wooden Fibre blank;
2) the wood fibre blank that step 1) obtains is mated formation on teel pallet, is then fed into hot press and carries out hot pressing, heat Pressing temperature is 115 to 135 degrees Celsius, hot pressing pressure 12kg/cm2To 18kg/cm2, hot pressing time is 25 to 35 minutes, is obtained The thick plate of fiber;
3) the thick plate plate of obtained fiber is neatly stacked, saw side, polishing is carried out after being cooled to room temperature;
4) by above-mentioned fire retardant in fire retardant: adhesive=1.0~1.5:2.5~4.1 ratio is stirred mixing, then The even surface for being sprayed on the thick plate of fiber made from step 3);
5) uniformly coat aqueous waterproofing paint in the surface of the thick plate of fiber that step 4) processing obtains, after natural drying up at Product.
6. a kind of wood-based plate processing method, which is the processing method of particieboard, which is characterized in that including following step It is rapid:
It 1) is in mass ratio that 0.20~0.35:0.1~0.2:100 is sufficiently mixed by adhesive, above-mentioned fire retardant and wood shavings, And mat formation into the slab of multiple-layered wood chipboard;
2) slab is sent directly into hot press and carries out hot pressing, hot pressing temperature is 90 to 100 degrees Celsius, hot pressing pressure 10kg/cm2 To 14kg/cm2
3) heating platen after step 2) hot pressing is neatly stacked, saw side, polishing is carried out after being cooled to room temperature, obtains thick plate;
4) by above-mentioned fire retardant by fire retardant: adhesive=0.4~0.7:1~1.5 weight ratio is mixed to get flame retarding agents, so The surface of the thick plate obtained in step 3) is uniformly coated into the flame retarding agents afterwards, naturally dry is got product.
CN201810686657.6A 2018-06-28 2018-06-28 Environment friendly aldehyde-free fire retardant and wood-based plate processing method CN108972751A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1654177A (en) * 2004-02-13 2005-08-17 吴天帮 Aqueous wood fire resistant fluid
CN101367227A (en) * 2008-09-18 2009-02-18 张东旭 Agronomic crop stalk medium density fiberboard using natural rubber and manufacturing method therefor
CN101892057A (en) * 2009-05-18 2010-11-24 北京盛大华源科技有限公司 Fire retardant, fire-retarding fiber plate and manufacturing method of fire-retarding fiber plate
CN101905475A (en) * 2010-06-25 2010-12-08 北京盛大华源科技有限公司 High-strength environment-friendly flame-retarding fiberboard and manufacturing method thereof
CN102114650A (en) * 2010-12-21 2011-07-06 北京盛大华源科技有限公司 Antiflaming plywood or veneer lamination and manufacturing method thereof
CN102504557A (en) * 2011-10-08 2012-06-20 福建农林大学 Low-density wood-plastic composite shaving board and manufacture method thereof
CN103895079A (en) * 2012-12-25 2014-07-02 胶州市富田化工有限公司 Moistureproof type flame retardant
CN103963111A (en) * 2013-01-31 2014-08-06 戴武兵 Man-made board and manufacturing method thereof
CN107775747A (en) * 2016-08-30 2018-03-09 沈阳顺风新材料有限公司 A kind of oriented structure wheat straw board of high-strength light

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1654177A (en) * 2004-02-13 2005-08-17 吴天帮 Aqueous wood fire resistant fluid
CN101367227A (en) * 2008-09-18 2009-02-18 张东旭 Agronomic crop stalk medium density fiberboard using natural rubber and manufacturing method therefor
CN101892057A (en) * 2009-05-18 2010-11-24 北京盛大华源科技有限公司 Fire retardant, fire-retarding fiber plate and manufacturing method of fire-retarding fiber plate
CN101905475A (en) * 2010-06-25 2010-12-08 北京盛大华源科技有限公司 High-strength environment-friendly flame-retarding fiberboard and manufacturing method thereof
CN102114650A (en) * 2010-12-21 2011-07-06 北京盛大华源科技有限公司 Antiflaming plywood or veneer lamination and manufacturing method thereof
CN102504557A (en) * 2011-10-08 2012-06-20 福建农林大学 Low-density wood-plastic composite shaving board and manufacture method thereof
CN103895079A (en) * 2012-12-25 2014-07-02 胶州市富田化工有限公司 Moistureproof type flame retardant
CN103963111A (en) * 2013-01-31 2014-08-06 戴武兵 Man-made board and manufacturing method thereof
CN107775747A (en) * 2016-08-30 2018-03-09 沈阳顺风新材料有限公司 A kind of oriented structure wheat straw board of high-strength light

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