CN110450239A - A kind of preparation method of novel non-formaldehyde leaching bond paper - Google Patents
A kind of preparation method of novel non-formaldehyde leaching bond paper Download PDFInfo
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- CN110450239A CN110450239A CN201910764513.2A CN201910764513A CN110450239A CN 110450239 A CN110450239 A CN 110450239A CN 201910764513 A CN201910764513 A CN 201910764513A CN 110450239 A CN110450239 A CN 110450239A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining 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
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
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- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Polyurethanes Or Polyureas (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of preparation methods of novel non-formaldehyde leaching bond paper, comprising the following steps: S1, is immersed in body paper in thermal sensitivity multicomponent isocyanates aldehyde-free cement, the body paper after dipping is then taken out drying, drying temperature is 60-120 DEG C；Veneer is carried out after the completion of S2, impregnated paper drying, hot pressing temperature is 110-220 DEG C when impregnated paper veneer, and for unsealing isocyanates and hydroxy compounds cross-linking reaction, completion impregnated paper is Nian Jie with the solidification of artificial board substrate for hot pressing.For the present invention using a kind of above-mentioned preparation method of novel non-formaldehyde leaching bond paper, simple production process, easy to operate, function admirable realize the target of the release of face artificial board formaldehyde zero.
Description
Technical field
The present invention relates to wood-based plate manufacture technology fields, more particularly to a kind of preparation side of novel non-formaldehyde leaching bond paper
Method.
Background technique
China is the big wood-based plate producing country of the first in the world and the first big furniture producing country.Currently, the yield of wood-based plate is super
Cross 3 billion cubic meters.Artificial laminin plate production furniture needs to carry out facing processing, common are patch melamine formal gum dipped paper
Facing, patch wood skin facing, paint finish etc., wherein melamine paper facing using effect is much higher than other facings, also, cost
It is low, it is high in machining efficiency.
As people increasingly increase environmental requirement, the greenization of Wood-based Panel Production and product is more more and more universal, increasingly
More Wood-based Panel Production producers starts to produce particieboard, multi-layer board, fiberboard of no aldehyde etc..But the facing of plate, especially
Paster technique still can only but use melamine formal impregnated bond paper.I.e. aldehyde-free cement production may be implemented in substrate,
And facing has remained as aldehyde glue impregnated paper facing, this becomes last one of obstacle of the complete environmental protection of plate.
Melamine formal glue impregnated bond paper production method, application method are mature, extremely easy and efficient, cost
It is low, therefore it becomes the most commonly used method of plate facing.In order to evade formaldehyde, people attempt to be used for using other adhesive
Impregnated paper facing, but it is all undesirable.Because after plate facing, to have a series of feature: wear-resisting, shock resistance, waterproof, hard
Degree, glossiness etc.；Meanwhile also to meet the technical process of facing, such as gum dipped paper can store the long period, and when hot pressing
Rapidly, certain cost is also one and important considers for solidification.
Currently, the trials such as people's diallyl phthalate, polyvinyl acetate, unsaturated-resin replace melamine
Formal glue produces impregnated paper, and then is used for facing.As a result be all can not accomplish in performance or in production efficiency etc. it is corresponding
Requirement.
Commercial scale of the wood-based plate without hydroformylation be universal to be realized by isocyanate adhesive, directly uses isocyanate glue
Stick can produce particieboard, oriented structure chipboard and fiberboard, and use isocyanates and two component of water soluble hydroxy (custom
Claim API) it can be used to produce multi-layer board and core-board.So having tried to make no aldehyde dipping glue film using isocyanates
Paper, to complete the thorough upgrading of the greenization of wood-based plate to furniture.But isocyanate adhesive have reactivity it is strong,
It must individually be saved in closed container, the features such as product is extremely strong to various substance adhesive properties, and impregnated paper gluing
Agent must be a kind of mixture by pre-polymerization, while must retain the activity that can further react, and complete the bonding to substrate
But it cannot be bonded steel plate, it can be allowed to industrialize without technology up to now.
Summary of the invention
It is simple production process, easy to operate the object of the present invention is to provide a kind of preparation method of novel non-formaldehyde leaching bond paper,
Function admirable realizes the target of the release of face artificial board formaldehyde zero.
To achieve the above object, the present invention provides a kind of preparation methods of novel non-formaldehyde leaching bond paper, including following step
It is rapid:
S1, body paper is immersed in thermal sensitivity multicomponent isocyanates aldehyde-free cement, then takes the body paper after dipping
It dries out, drying temperature is 60-120 DEG C；
Veneer is carried out after the completion of S2, impregnated paper drying, hot pressing temperature is 110-220 DEG C when impregnated paper veneer, and hot pressing is used for
Isocyanates and hydroxy compounds cross-linking reaction are unsealed, it is Nian Jie with the solidification of artificial board substrate to complete impregnated paper.
Preferably, thermal sensitivity multicomponent isocyanates aldehyde-free cement includes mixture B, filler, inner pattern releasing agent applicable, auxiliary agent,
The solid content of thermal sensitivity multicomponent isocyanates aldehyde-free cement is 20-70%；
The main component of mixture B includes the thermal sensitivity blocked isocyanate A for being dispersed in water, the acrylic acid tree of hydroxyl
Rouge and polyalcohol；Filler includes one of metal powder, metal oxide, nonmetallic mineral or a variety of, and inner pattern releasing agent applicable is poly-
Urethane class inner pattern releasing agent applicable, polyalcohol include in polyether polyol, polyester polyol, vegetable oil polyol and its hydroxy compounds
It is one or more.
Preferably, the solid content of thermal sensitivity multicomponent isocyanates aldehyde-free cement is 30-50%.
Preferably, the production method of thermal sensitivity blocked isocyanate A are as follows: by isocyanate-monomer autohemagglutination or with polyalcohol it is anti-
Performed polymer should be generated, wherein-NCO average functionality is greater than 2；Then performed polymer is reacted with hydrophilic modifier and is made emulsifiable different
Cyanate, wherein-NCO degree of functionality is 2-4, mass fraction 1-15%；Reuse sealer by emulsifiable isocyanates-
NCO group closing, obtains closed emulsifiable isocyanates A；Emulsifiable isocyanates will be finally closed to make by high speed shear
With dispersion liquid is made；
Hydrophilic modifier is non-ionic, anionic, cationic or mixed type, and hydrophilic modifier is polyoxyethylene alcohol
One of ether, sulfonate, quaternary ammonium salt, poly glycol monomethyl ether, 2,2- dihydromethyl propionic acid are a variety of, sealer be phenol,
One of caprolactam, diacetylmonoxime, sodium sulfite are a variety of.
Preferably, isocyanate-monomer is the one of diisocyanate, the monomer of polyisocyanates or derivative or prepolymer
Kind is a variety of, and isocyanate-monomer is toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, isophorone diisocyanate
Ester, hexa-methylene dicyanate, paraphenylene diisocyanate, Isosorbide-5-Nitrae-cyclohexane diisocyanate, benzene dimethylene diisocyanate,
One of cyclohexanedimethyleterephthalate diisocyanate, Methylcyclohexyl diisocyanate, polymethylene multi-phenenyl isocyanate
Or it is a variety of.
Preferably, isocyanate-monomer is the aliphatic isocyanates or hydrogenation isocyanates of color inhibition, isocyanates list
Body is hexa-methylene dicyanate, isophorone diisocyanate, Isosorbide-5-Nitrae-cyclohexane diisocyanate, cyclohexanedimethyleterephthalate two
One of isocyanates is a variety of.
Preferably, polyalcohol is glycerol, in ethylene glycol, polyether diols, trihydroxy polyethers, polyethylene glycol adipate
One or more, filler is one of aluminum oxide, calcium carbonate, titanium dioxide, mica powder or a variety of, and inner pattern releasing agent applicable is tristearin
Sour zinc.
Preferably, thermal sensitivity multicomponent isocyanates aldehyde-free cement further includes external release agent, catalyst and levelling agent, is taken off
It is intermittent in steel plate brushing external release agent when mould；
External release agent is organic silicon release agent, and catalyst is dibutyl tin dilaurate, and levelling agent is polyether-modified poly-
Siloxanes.
Preferably ,-NCO degree of functionality 2-3, mass fraction 4-10% in emulsifiable isocyanates A.
Preferably, it is 90-110 DEG C that body paper, which impregnated thermal sensitivity multicomponent isocyanates aldehyde-free cement post-baking temperature,
Gum dipped paper after drying is sealed at once；Temperature is 140-200 DEG C when impregnated paper veneer.
Therefore, the present invention is had the following technical effect that using a kind of above-mentioned preparation method of novel non-formaldehyde leaching bond paper
(1) present invention solve the problems, such as traditional impregnated bond paper must use have aldehyde glue i.e. triamine glue and urea-formaldehyde glue, be
Wood-based Panel Furniture, fitting-up are without the last one difficult point of hydroformylation.
(2) in the present invention in isocyanate adhesive-condensation of NCO group and hydroxyl forms urethane bond, hand over
Connection solidification, highly stable, chemical bond bonded adhesives resultant force is extremely strong, and waterproofness is good, high temperature resistant, is that other adhesive hardly match.
(3) present invention is by pre-polymerization, improves molecular weight, and performed polymer makes molecular size, structure more suitable for adhesive,
- NCO group quantity is reduced, ensure that the controllability of reaction, and demoulding is become easy when release agent is added
With it is feasible.
(4) present invention solves the problems, such as that isocyanate adhesive is scattered in water by grafting hydrophilic radical.
(5) present invention by by volume residual-NCO group closes, enable aldehyde-free cement and hydroxy compounds
It coexists, and can store for a long time.Sealer unseals temperature between 80~220 DEG C, and conventional facing temperature is in 110-200
Between DEG C, it is in this section.
(6) in inventive mixture B, Hydroxylated acrylic resin and polyalcohol are reactants, are the component parts of glue film,
It is also the supplier of the various performances of glue film.For example various resins of other components and filler are then to improve the comprehensive of glue film
Energy.Catalyst is then ideal reaction speed in order to obtain.
(7) bond paper facing through the invention, can accomplish that no aldehyde radical material to no thorough greenization of aldehyde facing, avoids trip
From Form aldehyde release.
(8) no aldehyde glue impregnated bond paper produced by the present invention, simple production process, easy to operate, the gum dipped paper after drying
Otherwise it can be stored for a long time higher than 80 DEG C or more of high temperature, or even be better than and have aldehyde glue impregnated paper, and obtained after facing hot pressing
Slabstock polyurethane glue-line bonding strength it is high, scratch-resistant, wear-resisting, high temperature resistant, good waterproof performance.
Below by embodiment, technical scheme of the present invention will be described in further detail.
Specific embodiment
Embodiments of the present invention are described further below.
A kind of preparation method of novel non-formaldehyde leaching bond paper, comprising the following steps:
S1, body paper is immersed in thermal sensitivity multicomponent isocyanates aldehyde-free cement, then takes the body paper after dipping
It dries out, drying temperature is 60-120 DEG C, is more had, and drying temperature is 90-110 DEG C, and the gum dipped paper after drying is to seal at once
It saves.
Veneer is carried out after the completion of S2, impregnated paper drying, hot pressing temperature is 110-220 DEG C when impregnated paper veneer, impregnated paper patch
It is 140-200 DEG C that temperature is more excellent when face, hot pressing for unsealing isocyanates and hydroxy compounds cross-linking reaction, complete impregnated paper and
The solidification of artificial board substrate is bonded.
Thermal sensitivity multicomponent isocyanates aldehyde-free cement includes mixture B, filler, inner pattern releasing agent applicable, auxiliary agent, and thermal sensitivity is more
The solid content of component isocyanates aldehyde-free cement is 20-70%.It is preferred that thermal sensitivity multicomponent isocyanates aldehyde-free cement
Solid content is 30-50%.
Thermal sensitivity multicomponent isocyanates aldehyde-free cement further includes external release agent, catalyst and levelling agent, demoulding time
Having a rest property in steel plate brushing external release agent.Inner pattern releasing agent applicable is used in combination with external release agent, enhances stripping result, and external release agent is to have
Machine silicon class release agent.Catalyst and levelling agent can increase paper finishing effect, improve working efficiency, catalyst is tin dilaurate
Dibutyl tin, levelling agent are Siloxane-Oxyalkylene Copolymers.
The main component of mixture B includes the thermal sensitivity blocked isocyanate A for being dispersed in water, the acrylic acid tree of hydroxyl
Rouge and polyalcohol；About-NCO and-OH ratio, it is ensured that isocyanate groups are excessive.Polyalcohol can improve the performance of paper,
Such as toughness, glossiness, fullness etc., guarantee advanced optimizing without aldehyde glue.
Filler includes one of metal powder, metal oxide, nonmetallic mineral or a variety of, and inner pattern releasing agent applicable is polyurethane
Class inner pattern releasing agent applicable, polyalcohol include one of polyether polyol, polyester polyol, vegetable oil polyol and its hydroxy compounds
Or it is a variety of.
Polyalcohol be one of glycerol, ethylene glycol, polyether diols, trihydroxy polyethers, polyethylene glycol adipate or
A variety of, filler is one of aluminum oxide, calcium carbonate, titanium dioxide, mica powder or a variety of, and inner pattern releasing agent applicable is zinc stearate.
Embodiment 1
A kind of preparation method of novel non-formaldehyde leaching bond paper, comprising the following steps:
(1) using the wannate Series P API of Wan Hua chemical groups Co., Ltd production, using Gaoqiao Petrochemical Company Chemical Manufacture
Polyether diols GE-220 and trihydroxy polyethers GEP-560S, the dosages of two kinds of polyethers is 2: 1；
Three's pre-polymerization obtains performed polymer, and-NCO group mass fraction is 14%, degree of functionality 2.3.It is further added and is modified
Agent polyxyethylated alcohol ,-NCO group mass fraction are further decreased to 10%.Sealer diacetylmonoxime is further added at this time, it will
Residue-NCO group closing.Water is dispersed by high-speed stirred shearing by product.Thermal sensitivity isocyanates aqueous dispersions are made
A, water and colloid amount fraction scale are 1: 1.
(2) the Hydroxylated acrylic resin DB3717 including the production of Hubei double bond fine chemistry industry in mixture B, commercially available glycerol.
(3) by A and B, while aluminum oxide powder filler, the catalyst T12 for increasing wearability is added, by cutting at a high speed
Mixing is cut, is made without aldehyde maceration extract.Wherein without aldehyde glue component A: Hydroxylated acrylic resin: glycerol: aluminum oxide: T12: polyethers
Modified polyorganosiloxane: water ratio is 50: 60: 3: 5: 0.05: 2: 120.
(4) body paper is impregnated in above-mentioned made no aldehyde glue, glue is fallen in drip, and is dried using 100 DEG C of temperature.
(5) the 18mm aldehyde-free stalk plate for taking Wanhua Ecological Board Industry Co., Ltd to produce is as substrate, hot pressing temperature 180
DEG C, pressure 1.2MPa, hot pressing time 30s.
(6) after hot pressing decoration surface, dry in the air plate, obtains no aldehyde Surface decorated woodbased panels with paper impregnated thermosetting resins.
The detection of decoration panel key performance is as follows:
It can be seen that the high advantage of polyurethane adhesive adhesive strength according to two indexs very to protrude, be much higher than state
Mark >=0.6MPa requirement.In free formaldehyde release test, since substrate stalk board is also using isocyanide as bond paper
Acid esters adhesive bonding, therefore do not detect that free formaldehyde discharges.In addition, the cold-resistant thermal cycle of bond paper cured glue layer, resistance to
The resistance to cracking of scratch, anti-pollution burn into and gloss and texture are also all very outstanding.
Therefore, the present invention is using a kind of above-mentioned preparation method of novel non-formaldehyde leaching bond paper, simple production process, easily behaviour
Make, function admirable, realizes the target of the release of face artificial board formaldehyde zero.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited,
Although the present invention is described in detail with reference to preferred embodiments, those skilled in the art should understand that: its according to
So can be with modification or equivalent replacement of the technical solution of the present invention are made, and these modifications or equivalent replacement cannot also make to repair
Technical solution after changing is detached from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a kind of preparation method of novel non-formaldehyde leaching bond paper, which comprises the following steps:
S1, body paper is immersed in thermal sensitivity multicomponent isocyanates aldehyde-free cement, then the body paper after dipping is taken out and is dried
Dry, drying temperature is 60-120 DEG C；
Veneer is carried out after the completion of S2, impregnated paper drying, hot pressing temperature is 110-220 DEG C when impregnated paper veneer, and hot pressing is for unsealing
It is Nian Jie with the solidification of artificial board substrate to complete impregnated paper for isocyanates and hydroxy compounds cross-linking reaction；
Thermal sensitivity multicomponent isocyanates aldehyde-free cement includes mixture B, filler, inner pattern releasing agent applicable, auxiliary agent, thermal sensitivity multicomponent
The solid content of isocyanates aldehyde-free cement is 20-70%, and the main component of mixture B includes being dispersed in the thermal sensitivity envelope of water
Close the acrylic resin and polyalcohol of isocyanates A, hydroxyl.
2. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 1, it is characterised in that: filler includes gold
Belong to one of powder, metal oxide, nonmetallic mineral or a variety of, inner pattern releasing agent applicable is polyurethanes inner pattern releasing agent applicable, polyalcohol
Including one of polyether polyol, polyester polyol, vegetable oil polyol and its hydroxy compounds or a variety of.
3. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 1, it is characterised in that: thermal sensitivity multiple groups
The solid content for dividing isocyanates aldehyde-free cement is 30-50%.
4. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 1, which is characterized in that thermal sensitivity closing
The production method of isocyanates A are as follows: performed polymer is generated by isocyanate-monomer autohemagglutination or with polyol reaction, wherein-NCO is average
Degree of functionality is greater than 2；Then performed polymer is reacted with hydrophilic modifier and emulsifiable isocyanates is made, wherein-NCO degree of functionality is 2-
4, mass fraction 1-15%；Reuse sealer by emulsifiable isocyanates-NCO group close, obtain it is closed can cream
Change isocyanates A；Emulsifiable isocyanates will finally be closed, dispersion liquid is made by high speed shear effect；
Hydrophilic modifier be non-ionic, anionic, cationic or mixed type, hydrophilic modifier be polyxyethylated alcohol,
One of sulfonate, quaternary ammonium salt, poly glycol monomethyl ether, 2,2- dihydromethyl propionic acid are a variety of, and sealer is phenol, in oneself
One of amide, diacetylmonoxime, sodium sulfite are a variety of.
5. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 4, it is characterised in that: isocyanates list
Body is the one or more of diisocyanate, the monomer of polyisocyanates or derivative or prepolymer, and isocyanate-monomer is first
Phenylene diisocyanate, methyl diphenylene diisocyanate, isophorone diisocyanate, hexa-methylene dicyanate, to benzene two
Isocyanates, Isosorbide-5-Nitrae-cyclohexane diisocyanate, benzene dimethylene diisocyanate, cyclohexanedimethyleterephthalate diisocyanate,
One of Methylcyclohexyl diisocyanate, polymethylene multi-phenenyl isocyanate are a variety of.
6. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 4, it is characterised in that: isocyanates list
Body is the aliphatic isocyanates or hydrogenation isocyanates of color inhibition, and isocyanate-monomer is hexa-methylene dicyanate, different Buddhist
One of your ketone diisocyanate, Isosorbide-5-Nitrae-cyclohexane diisocyanate, cyclohexanedimethyleterephthalate diisocyanate are a variety of.
7. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 2, it is characterised in that: polyalcohol is sweet
One of oil, ethylene glycol, polyether diols, trihydroxy polyethers, polyethylene glycol adipate are a variety of, and filler is three oxidations two
One of aluminium, calcium carbonate, titanium dioxide, mica powder are a variety of, and inner pattern releasing agent applicable is zinc stearate.
8. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 2, it is characterised in that: thermal sensitivity multiple groups
Point isocyanates aldehyde-free cement further includes external release agent, catalyst and levelling agent, having a rest property of demoulding time outside steel plate brushing
Release agent；
External release agent is organic silicon release agent, and catalyst is dibutyl tin dilaurate, and levelling agent is polyether-modified poly- silicon oxygen
Alkane.
9. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 4, it is characterised in that: emulsifiable isocyanide
- NCO degree of functionality 2-3 in acid esters A, mass fraction 4-10%.
10. a kind of preparation method of novel non-formaldehyde leaching bond paper according to claim 1, it is characterised in that: body paper impregnates
Crossing thermal sensitivity multicomponent isocyanates aldehyde-free cement post-baking temperature is 90-110 DEG C, and the gum dipped paper after drying is to seal at once
It saves；Temperature is 140-200 DEG C when impregnated paper veneer.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411543A (en) * | 2020-05-09 | 2020-07-14 | 中国林业科学研究院木材工业研究所 | Adhesive for formaldehyde-free impregnated bond paper and preparation method thereof |
| CN111531660A (en) * | 2020-05-09 | 2020-08-14 | 中国林业科学研究院木材工业研究所 | Low-formaldehyde impregnated bond paper facing artificial board and preparation method thereof |
| CN113492445A (en) * | 2021-06-25 | 2021-10-12 | 广州市盈尔安防火材料有限公司 | Weather-proof and corrosion-proof solid wood composite plywood and preparation process thereof |
| CN113733262A (en) * | 2021-08-30 | 2021-12-03 | 雪宝家居集团有限公司 | Surface dipping wear-resistant treatment process for environment-friendly plate |
| CN114293402A (en) * | 2022-01-06 | 2022-04-08 | 阳光王子(寿光)特种纸有限公司 | Aldehyde-free hot-pressing impregnation decorative paper and preparation method thereof |
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