CN106433529A - Environment-friendly toughening adhesive for reconstituted decorative lumber and application thereof - Google Patents
Environment-friendly toughening adhesive for reconstituted decorative lumber and application thereof Download PDFInfo
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- CN106433529A CN106433529A CN201610837162.XA CN201610837162A CN106433529A CN 106433529 A CN106433529 A CN 106433529A CN 201610837162 A CN201610837162 A CN 201610837162A CN 106433529 A CN106433529 A CN 106433529A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical And Physical Treatments For Wood And The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to an environment-friendly toughening adhesive for reconstituted decorative lumber and application thereof. The environment-friendly toughening adhesive for the reconstituted decorative lumber is prepared from, by weight, 3-20 parts of modified nano-crystalline cellulose, 5-10 parts of water-based polymer, 100 parts of biomass composite emulsion, 1.5-5 parts of filler and 10-20 parts of a stress type crosslinking agent; 5-10 parts of the water-based polymer and 100 parts of the biomass composite emulsion are made into a main agent, 3-20 parts of the modified nano-crystalline cellulose and 1.5-5 parts of the filler are added into the main agent and mixed to be uniform, and then 10-20 parts of the stress type crosslinking agent is added to obtain the environment-friendly toughening adhesive for the reconstituted decorative lumber. The environment-friendly toughening adhesive for the reconstituted decorative lumber is high in environmental friendliness and good in toughening effect, no formaldehyde is introduced into the reconstituted decorative lumber when the environment-friendly toughening adhesive for the reconstituted decorative lumber is applied to preparation of the reconstituted decorative lumber, environmental friendliness of the reconstituted decorative lumber is greatly improved, and meanwhile due to the toughening effect of the adhesive, the toughness of the reconstituted decorative lumber is greatly improved.
Description
Technical field
The present invention relates to a kind of adhesive and its application, particularly to a kind of environment-friendly toughened adhesive of recombinant decorative timber-used and
Its application.
Background technology
Recombinant material（Industry is commonly called as " Recombinant Wood "）It is with common wood as raw material, apply adhesive and through certain processing work
The artificial veneer being obtained after sequence.In recombinant material manufacture process, do not destroy microstructure and the build-in attribute of timber, protect completely
Stay all of natural attributes such as natural timber is heat-insulated, insulation, homoiothermic, damping, overcome the numerous natural defect of artificial fast growing wood,
The high-value-use of achievable timber.Nearly 30 years, the work(of the manufacturing equipment mainly around recombinant decorative material for the research staff and product
Energyization has carried out substantial amounts of research and industrialization development, but, recombinant decorative material product remains not high enough and tough in environmental-protecting performance
Property difference the problems such as, lag far behind the demand to high-quality recombinant decorative material product for the market, seriously limit recombinant decorative material industry
Sound development.Wherein, the adhesive that recombinant decorative material manufacture is used, has directly to the feature of environmental protection and toughness of recombinant decorative material
Impact.Patent CN104152088B discloses a kind of nanometer alumina modified synvaren and preparation method thereof and uses
On the way, although this adhesive has for timber processing, curing rate is fast, adhesive strength is high, the low advantage of burst size of methanal,
This adhesive still cannot evade the use of formaldehyde, and the feature of environmental protection is still not high enough, also fails to solve the problems, such as recombinant decorative material poor toughness.
Patent CN103878833A discloses a kind of manufacture method of Recombined bamboo fancy veneer, its use adhesive be Lauxite,
The mixed liquor of modified starch emulsion and polyvinyl acetate emulsion is although there is reduces cost, but still cannot solve to recombinate
The decoration material feature of environmental protection is not high enough, the problem of poor toughness.
Content of the invention
An object of the present invention is to provide a kind of feature of environmental protection high and recombinant decorative timber-used adhesive that is having toughening effect.
The second object of the present invention is to provide a kind of feature of environmental protection high and recombinant decorative timber-used adhesive that is having toughening effect
Application in recombinant decorative material preparation.
First technical purpose of the present invention technical scheme is that：
A kind of environment-friendly toughened adhesive of recombinant decorative timber-used, the environment-friendly toughened adhesive of described recombinant decorative timber-used is by following weight portion
Raw material make：Modified micro-nano cellulose 3-20 part, aqueous high molecular 5-10 part, 100 parts of biomass combined emulsion, filler
1.5-5 part, stress type cross-linking agent 10-20 part；By described aqueous high molecular 5-10 part and described biomass combined 100 parts of systems of emulsion
Obtain host, add described modification micro-nano cellulose 3-20 part to add with filler 1.5-5 part and after mixing in described host
Described type cross-linking agent 10-20 part a kind of recombinant decorative timber-used environment-friendly toughened adhesive stress be obtained.
The environment-friendly toughened adhesive of described recombinant decorative timber-used with biomass combined emulsion as raw material, without formaldehyde, simultaneously
Total volatile organism is few, has the feature of environmental protection of height；Described biomass combined emulsion has association with modified micro-nano cellulose
Same toughening effect, so that adhesive has good toughening effect.
Preferably, the fibre diameter of described modification micro-nano cellulose is 10-50nm；Described modification micro-nano cellulose
With the timber of removing lignin and hemicellulose or stalk fibre as raw material, the acid solution being 30-60% with mass fraction is in 40-
Stirring reaction 1-3h at 80 DEG C, forms cellulose paste, more described cellulose paste is added water regulation concentration to 1.5-2%, then will
Described cellulose paste low temperature ultrasonic pretreatment 15- under 5-10 DEG C, ultrasonic power 300-1000W, supersonic frequency 18-22kHz
60min, then under 50-150MPa pressure, high pressure homogenize circulates 2-10 time by described cellulose paste, then by described cellulose slurry
Material adds water regulation concentration to 1-2%, adds the silane coupler of 1-3% of described cellulose paste quality and in 30-50 DEG C, nitrogen
After gas is with airflow rate 5-30ml/min deoxygenation 3-10min, carry out under ultrasonic power 600-900W, supersonic frequency 18-22kHz
Original position ultrasonic reaction 5-30min is obtained；Described silane coupler is amido functional group silane, epoxy functionality silane, methyl
The fibre diameter of at least one of acryloxy functionality's silane is 10-50nm.
With the timber of removing lignin and hemicellulose or stalk fibre as raw material, both reduced cost of material, realized again
The twice laid of timber or straw；Though traditional micro-nano cellulose has a nanometer toughening effect, it cannot be with adhesive
Host is effectively compounding to mix, and the described modification micro-nano cellulose that inventor is obtained not only has a nanometer toughening effect, Er Qieke
To mix with being compounded by the host that described biomass combined emulsion and described aqueous high molecular are obtained.
Preferably, described aqueous high molecular is added by 10-20 weight account polyethylene alcohol, 0.5-3 weight portion composite modifier
Enter in 100 parts of water, be warming up to 80-95 DEG C, stirring reaction 40-80min is obtained；Described composite modifier is sodium bisulfate, Semen Maydiss
Starch and dibutyl phthalate are according to mass ratio 1：10-20：5-10 compounds.
Preferably, described biomass combined emulsion is with 15-40 parts by weight of soybean powder as raw material, 100 weight portions are added to contain
In the aqueous solution of 1-3 parts by weight silicate and part by weight modified dose of 0.5-5, it is warming up to 40-60 DEG C, stirring reaction 30-60min,
Add 0.3-0.6 weight portion sodium bicarbonate and 1.5-5 parts by weight Emulsifier, Deca 10-30 weight portion after being warming up to 65-75 DEG C
Grafted monomers, Deca 1.5-4 parts of peroxide, 10-30 weight portion 3-7wt% sodium sulfite solution successively simultaneously, it is warming up to
80-95 DEG C, stirring reaction 120-240min is obtained；Described silicate is sodium silicate or potassium silicate；Described modifying agent be carbamide with
Maleic anhydride in mass ratio 1：8-12 compounds；Described emulsifying agent be sodium lauryl sulphate, alkylphenol polyoxyethylene and
Hexadecyltrimethylammonium chloride in mass ratio 1：0.8-1.2：0.8-1.2 compounds；Described peroxide is Ammonium persulfate., over cure
At least one of sour potassium, sodium peroxydisulfate；Described grafted monomers are one of vinyl acetate, methyl methacrylate, styrene.
Described biomass combined emulsion is the key component of the environment-friendly toughened adhesive of described recombinant decorative timber-used, which employs
Modified Semen sojae atricolor powder and grafted monomers and compound with described aqueous high molecular and solve asking of native soy protein poor water resistance
Topic, and with described modification micro-nano cellulose, there is synergism, effectively strengthen toughening effect.
Preferably, described filler is flour, starch, tannin, kieselguhr, Kaolin, bentonite, Pulvis Talci, montmorillonite
One or more of mixture.
Preferably, described stress type cross-linking agent by mass ratio 1:The polyisocyanates of 0.5-1.5 proportioning and stress be modified
Under logical nitrogen is protected, stirring is warming up to 50-80 DEG C for agent, reacts 60-180min, prepared performed polymer, is subsequently adding cross-linking agent, stirs
Mix cooling to be obtained；Described polyisocyanates is polymethylene multi-phenenyl isocyanate, hexamethylene-diisocyanate, diphenylmethyl
At least one of alkane diisocyanate；Described stress modifying agent be Polyethylene Glycol, polytetrahydrofuran diol, at least one in polyetheramine
Kind；Described cross-linking agent is the silane with organo-functional group, and formula is Y-R-SiX3, and X is hydrolysising group, and Y is organo-functional group.
Described stress type cross-linking agent play when described environment-friendly toughened adhesive is used for recombinant decorative material hot-press gluing crosslinked
The effect of reaction, is the key factor of recombinant decorative material hot-press gluing molding, and the working life of described adhesive is improved by it
To >=3h；End-block mechanism based on polyisocyanates and curing mechanism, described adhesive is used for recombinant decorative material hot pressing glue
It is subject to temperature and pressure to stimulate end group deblocking to produce cross-linking reaction, thus ensureing the effect of glue molding during conjunction；Described hydrolysising group
As chloro, methoxyl group, ethyoxyl, methoxyethoxy, acetoxyl group etc., generate silanol Si (HO) in hydrolysis3, can and no
The group of machine thing combines and is chemically crosslinked；Described organo-functional group, such as vinyl, amino, epoxy radicals, methacryloxypropyl
Base etc., to organic resin surface orientation, can combine with organic group (as-OH), generate hydrophobic chemical key.
Preferably, described host is by described aqueous high molecular 5-10 weight portion and described biomass combined emulsion 100 weight
Amount part mix homogeneously stirring at 80-95 DEG C is cooled to room temperature and is obtained.
Second technical purpose of the present invention technical scheme is that：
A kind of application in recombinant decorative material preparation for the environment-friendly toughened adhesive of recombinant decorative timber-used.
It is high that the environment-friendly toughened adhesive of described recombinant decorative timber-used has the feature of environmental protection（Without formaldehyde）, good excellent of toughening effect
Point, is applied in the preparation of recombinant decorative material, can improve the recombinant decorative material feature of environmental protection（Formaldehydeless release）While, significantly
Improve the toughness of recombinant decorative material.
Preferably, carrying out cloth glue with the environment-friendly toughened adhesive of described recombinant decorative timber-used on sheet material, then heat pressing
Prepared recombinant decorative material.
When sheet material after cloth glue is carried out hot pressing, the environment-friendly toughened adhesive of described recombinant decorative timber-used is subject to temperature and pressure
Power stimulates, and with constituent, good glued effect occurs, so that sheet material glue molding.
In sum, the invention has the advantages that：
1st, a kind of environment-friendly toughened adhesive of recombinant decorative timber-used of the present invention does not contain formaldehyde, and total volatile organism is few, has ring
The high feature of guarantor property；A kind of environment-friendly toughened adhesive of recombinant decorative timber-used of the present invention has played the increasing of modified micro-nano cellulose
Tough effect and biomass emulsion and the synergism of modified micro-nano cellulose, have extraordinary toughness reinforcing effect.
2nd, by a kind of environment-friendly toughened adhesive applications of recombinant decorative timber-used of the present invention in the preparation of recombinant decorative material, due to
Adhesive does not contain formaldehyde, thus will not introduce formaldehyde in recombinant decorative material, improves the feature of environmental protection of recombinant decorative material；Pass through glue simultaneously
The toughening effect of stick, is greatly improved the toughness of recombinant decorative material.
Brief description
Fig. 1 is a kind of preparation process figure of the environment-friendly toughened adhesive of present invention recombinant decorative timber-used.
Specific embodiment
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make to the present embodiment after reading this specification as needed does not have the modification of creative contribution, but as long as at this
All protected by Patent Law in the right of invention.
Embodiment 1
A. the preparation of modified micro-nano cellulose：By the timber of removing lignin and hemicellulose or stalk fibre mass fraction
Acid solution for 45% stirring reaction 2h at 60 DEG C, forms cellulose paste, more described cellulose paste is added water regulation concentration
To 1.8%, then by the low temperature ultrasonic pretreatment under 8 DEG C, ultrasonic power 650W, supersonic frequency 20kHz of described cellulose paste
40min, then under 100MPa pressure, high pressure homogenize circulates 6 times by described cellulose paste, more described cellulose paste is added water
Adjust concentration to 1.5%, add 2% silane coupler of described cellulose paste quality and in 40 DEG C, nitrogen with gas velocity
After rate 18ml/min deoxygenation 7min, carry out original position ultrasonic reaction 18min under ultrasonic power 750W, supersonic frequency 20kHz, be obtained
Described modification micro-nano cellulose；Described silane coupler is amido functional group silane；The fibre of described modification micro-nano cellulose
Tie up a diameter of 10-50nm；
B. the preparation of aqueous high molecular：15g polyvinyl alcohol, 1.8g composite modifier are added in 100g water, is warming up to 88 DEG C, stirs
Mix reaction 60min, described aqueous high molecular is obtained；Described composite modifier is sodium bisulfate, corn starch and phthalic acid
Dibutyl ester is according to mass ratio 1：15：8 compound；
C. the preparation of biomass combined emulsion：28g Semen sojae atricolor powder is added in 100g silicate containing 2g and the aqueous solution of 3g modifying agent,
It is warming up to 50 DEG C, stirring reaction 45min, add 0.5g sodium bicarbonate and 3.5g emulsifying agent, after being warming up to 70 DEG C, Deca 20g connects
Branch monomer, Deca 3g peroxide, 20g5wt% sodium sulfite solution successively simultaneously, it is warming up to 88 DEG C, stirring reaction 180min,
Described biomass combined emulsion is obtained；Described peroxide is potassium peroxydisulfate；Described silicate is potassium silicate；Described modifying agent is
Carbamide and maleic anhydride in mass ratio 1：10 compound；Described emulsifying agent is sodium lauryl sulphate, alkylphenol-polyethenoxy
Ether and hexadecyltrimethylammonium chloride in mass ratio 1：1：1 compounds；Described grafted monomers are vinyl acetate；
D. the preparation of host：The described biomass that the described aqueous high molecular that 7.5g step b is obtained is obtained with 100g step c are multiple
Close emulsion mix homogeneously stirring at 88 DEG C and be cooled to room temperature and host is obtained；
E. stress type cross-linking agent preparation：By polyisocyanates and stress modifying agent in mass ratio 1:1, under the protection of logical nitrogen, stirs
Mix and be warming up to 65 DEG C, react 120min, prepared performed polymer, be subsequently adding cross-linking agent, stirring cooling be obtained described stress type crosslinked
Agent；Described polyisocyanates is polymethylene multi-phenenyl isocyanate, hexamethylene-diisocyanate, diphenyl methane two isocyanide
The mixture of acid esters；Described stress modifying agent be Polyethylene Glycol, polytetrahydrofuran diol, the mixture of polyetheramine；Described crosslinking
Agent is the silane with organo-functional group, and formula is Y-R-SiX3, X is hydrolysising group, and Y is organo-functional group；
F. the preparation of adhesive：The described modification micro-nano cellulose that be obtained 12g step a and 3.5g filler add step d system
Described host and mix homogeneously, add that 15g step e is obtained described stress type cross-linking agent mix homogeneously, final make
Obtain adhesive, be named as L1；Described filler is flour, bentonitic mixture.
Embodiment 2
A. the preparation of modified micro-nano cellulose：By the timber of removing lignin and hemicellulose or stalk fibre mass fraction
Acid solution for 30% stirring reaction 3h at 40 DEG C, forms cellulose paste, more described cellulose paste is added water regulation concentration
To 1.5%, then by the low temperature ultrasonic pretreatment under 10 DEG C, ultrasonic power 1000W, supersonic frequency 22kHz of described cellulose paste
60min, then under 120MPa pressure, high pressure homogenize circulates 7 times by described cellulose paste, more described cellulose paste is added water
Adjust concentration to 1%, add 2% silane coupler of described cellulose paste quality and in 40 DEG C, nitrogen with airflow rate
After 30ml/min deoxygenation 3min, carry out original position ultrasonic reaction 20min, prepared institute under ultrasonic power 900W, supersonic frequency 18kHz
State modified micro-nano cellulose；Described silane coupler is epoxy functionality silane；The fibre of described modification micro-nano cellulose
Tie up a diameter of 10-50nm；
B. the preparation of aqueous high molecular：20g polyvinyl alcohol, 3g composite modifier are added in 100g water, is warming up to 95 DEG C, stirring
Reaction 70min, is obtained described aqueous high molecular；Described composite modifier is sodium bisulfate, corn starch and phthalic acid two
Butyl ester is according to mass ratio 1：10：10 compound；
C. the preparation of biomass combined emulsion：35g Semen sojae atricolor powder is added in 100g silicate containing 2g and the aqueous solution of 4g modifying agent,
It is warming up to 55 DEG C, stirring reaction 40min, add 0.5g sodium bicarbonate and 4g emulsifying agent, Deca 25g grafting after being warming up to 70 DEG C
Monomer, Deca 3g peroxide, 25g5wt% sodium sulfite solution successively simultaneously, it is warming up to 95 DEG C, stirring reaction 200min, system
Obtain described biomass combined emulsion；Described peroxide is potassium peroxydisulfate；Described silicate is sodium silicate；Described modifying agent is urine
Element and maleic anhydride in mass ratio 1：12 compound；Described emulsifying agent is sodium lauryl sulphate, alkylphenol polyoxyethylene
With hexadecyltrimethylammonium chloride in mass ratio 1：1：1 compounds；Described grafted monomers are methyl methacrylate；
D. the preparation of host：The described biomass that the described aqueous high molecular that 8.5g step b is obtained is obtained with 100g step c are multiple
Close emulsion mix homogeneously stirring at 95 DEG C and be cooled to room temperature and host is obtained；
E. stress type cross-linking agent preparation：By polyisocyanates and stress modifying agent in mass ratio 1:1, under the protection of logical nitrogen, stirs
Mix and be warming up to 70 DEG C, react 100min, prepared performed polymer, be subsequently adding cross-linking agent, stirring cooling be obtained described stress type crosslinked
Agent；Described polyisocyanates is hexamethylene-diisocyanate, the mixture of methyl diphenylene diisocyanate；Described stress change
Property agent be polytetrahydrofuran diol, the mixture of polyetheramine；Described cross-linking agent is the silane with organo-functional group, and formula is Y-
R-SiX3, X is hydrolysising group, and Y is organo-functional group；
F. the preparation of adhesive：The described modification micro-nano cellulose that be obtained 16g step a and 4g filler add step d to be obtained
Described host and mix homogeneously, add 18g step e be obtained described stress type cross-linking agent mix homogeneously, be finally obtained
Adhesive, is named as L2；Described filler is starch, kieselguhr, talcous mixture.
Embodiment 3
A. the preparation of modified micro-nano cellulose：By the timber of removing lignin and hemicellulose or stalk fibre mass fraction
Acid solution for 60% stirring reaction 1h at 80 DEG C, forms cellulose paste, more described cellulose paste is added water regulation concentration
To 1.8%, then by the low temperature ultrasonic pretreatment under 5 DEG C, ultrasonic power 1000W, supersonic frequency 22kHz of described cellulose paste
30min, then under 150MPa pressure, high pressure homogenize circulates 2 times by described cellulose paste, more described cellulose paste is added water
Adjust concentration to 2%, add 3% silane coupler of described cellulose paste quality and in 30 DEG C, nitrogen with airflow rate
After 5ml/min deoxygenation 10min, carry out original position ultrasonic reaction 30min, prepared institute under ultrasonic power 600W, supersonic frequency 22kHz
State modified micro-nano cellulose；Described silane coupler is methacryloxy functional groups silane；Described modified micro-nano fibre
The fibre diameter of dimension element is 10-50nm；
B. the preparation of aqueous high molecular：10g polyvinyl alcohol, 0.5g composite modifier are added in 100g water, is warming up to 80 DEG C, stirs
Mix reaction 80min, described aqueous high molecular is obtained；Described composite modifier is sodium bisulfate, corn starch and phthalic acid
Dibutyl ester is according to mass ratio 1：20：5 compound；
C. the preparation of biomass combined emulsion：15g Semen sojae atricolor powder is added the aqueous solution of 100g silicate containing 1g and 0.5g modifying agent
In, it is warming up to 60 DEG C, stirring reaction 30min, add 0.3g sodium bicarbonate and 1.5g emulsifying agent, Deca after being warming up to 75 DEG C
10g grafted monomers, Deca 1.5g peroxide, 10g7wt% sodium sulfite solution successively simultaneously, it is warming up to 80 DEG C, stirring reaction
240min, is obtained described biomass combined emulsion；Described peroxide is potassium peroxydisulfate, the mixture of Ammonium persulfate.；Described silicon
Hydrochlorate is potassium silicate；Described modifying agent is carbamide and maleic anhydride in mass ratio 1：8 compound；Described emulsifying agent is dodecane
Base sodium sulfate, alkylphenol polyoxyethylene and hexadecyltrimethylammonium chloride in mass ratio 1：1.2：1.2 it is compounding；Described grafting
Monomer is styrene；
D. the preparation of host：The described aqueous high molecular that 5g step b is obtained is described biomass combined with what 100g step c was obtained
Emulsion mix homogeneously stirring at 80 DEG C is cooled to room temperature and host is obtained；
E. stress type cross-linking agent preparation：By polyisocyanates and stress modifying agent in mass ratio 1:1.5 under the protection of logical nitrogen,
Stirring is warming up to 80 DEG C, reacts 180min, prepared performed polymer, is subsequently adding cross-linking agent, and stirring cooling is obtained described stress hand over type
Connection agent；Described polyisocyanates is polymethylene multi-phenenyl isocyanate；Described stress modifying agent be Polyethylene Glycol；Described crosslinking
Agent is the silane with organo-functional group, and formula is Y-R-SiX3, X is hydrolysising group, and Y is organo-functional group；
F. the preparation of adhesive：The described modification micro-nano cellulose that be obtained 3g step a and 5g filler add step d to be obtained
Described host mix homogeneously, add 10g step e be obtained described stress type cross-linking agent mix homogeneously, finally be obtained glue
Stick, is named as L3；Described filler is tannin, Kaolin, the mixture of montmorillonite.
Embodiment 4
A. the preparation of modified micro-nano cellulose：By the timber of removing lignin and hemicellulose or stalk fibre mass fraction
Acid solution for 55% stirring reaction 2.5h at 70 DEG C, formed cellulose paste, then by described cellulose paste add water regulation dense
Spend to 2%, then by the low temperature ultrasonic pretreatment under 8 DEG C, ultrasonic power 300W, supersonic frequency 18kHz of described cellulose paste
40min, then under 50MPa pressure, high pressure homogenize circulates 10 times by described cellulose paste, more described cellulose paste is added water
Adjust concentration to 1.5%, add 1% silane coupler of described cellulose paste quality and in 50 DEG C, nitrogen with gas velocity
After rate 25ml/min deoxygenation 6min, carry out original position ultrasonic reaction 10min under ultrasonic power 900W, supersonic frequency 22kHz, be obtained
Described modification micro-nano cellulose；Described silane coupler is amido functional group silane, methacryloxy functional groups silane
Mixture；The fibre diameter of described modification micro-nano cellulose is 10-50nm；
B. the preparation of aqueous high molecular：15g polyvinyl alcohol, 1.8g composite modifier are added in 100g water, is warming up to 90 DEG C, stirs
Mix reaction 40min, described aqueous high molecular is obtained；Described composite modifier is sodium bisulfate, corn starch and phthalic acid
Dibutyl ester is according to mass ratio 1：15：8 compound；
C. the preparation of biomass combined emulsion：40g Semen sojae atricolor powder is added in 100g silicate containing 3g and the aqueous solution of 5g modifying agent,
It is warming up to 60 DEG C, stirring reaction 60min, add 0.6g sodium bicarbonate and 5g emulsifying agent, Deca 30g grafting after being warming up to 65 DEG C
Monomer, Deca 4g peroxide, 30g3wt% sodium sulfite solution successively simultaneously, it is warming up to 90 DEG C, stirring reaction 200min, system
Obtain described biomass combined emulsion；Described peroxide is Ammonium persulfate.；Described silicate is potassium silicate；Described modifying agent is urine
Element and maleic anhydride in mass ratio 1：8 compound；Described emulsifying agent be sodium lauryl sulphate, alkylphenol polyoxyethylene and
Hexadecyltrimethylammonium chloride in mass ratio 1：0.8：0.8 compounds；Described grafted monomers are vinyl acetate；
D. the preparation of host：The described biomass that the described aqueous high molecular that 10g step b is obtained is obtained with 100g step c are multiple
Close emulsion mix homogeneously stirring at 90 DEG C and be cooled to room temperature and host is obtained；
E. stress type cross-linking agent preparation：By polyisocyanates and stress modifying agent in mass ratio 1:0.5 under the protection of logical nitrogen,
Stirring is warming up to 80 DEG C, reacts 60min, prepared performed polymer, is subsequently adding cross-linking agent, stirring cooling be obtained described stress type crosslinked
Agent；Described polyisocyanates is hexamethylene-diisocyanate；Described stress modifying agent be polytetrahydrofuran diol；Described crosslinking
Agent is the silane with organo-functional group, and formula is Y-R-SiX3, X is hydrolysising group, and Y is organo-functional group；
F. the preparation of adhesive：The described modification micro-nano cellulose that be obtained 20g step a and 1.5g filler add step d system
Described host and mix homogeneously, add that 20g step e is obtained described stress type cross-linking agent mix homogeneously, final make
Obtain adhesive, be named as L4；Described filler is flour, Kaolin, bentonitic mixture.
Embodiment 5
A. the preparation of modified micro-nano cellulose：By the timber of removing lignin and hemicellulose or stalk fibre mass fraction
Acid solution for 55% stirring reaction 3h at 75 DEG C, forms cellulose paste, more described cellulose paste is added water regulation concentration
To 1.8%, then by the low temperature ultrasonic pretreatment under 10 DEG C, ultrasonic power 900W, supersonic frequency 21kHz of described cellulose paste
15min, then under 100MPa pressure, high pressure homogenize circulates 5 times by described cellulose paste, more described cellulose paste is added water
Adjust concentration to 1.5%, add 2% silane coupler of described cellulose paste quality and in 40 DEG C, nitrogen with gas velocity
After rate 18ml/min deoxygenation 7min, carry out original position ultrasonic reaction 25min under ultrasonic power 750W, supersonic frequency 20kHz, be obtained
Described modification micro-nano cellulose；Described silane coupler is amido functional group silane, the mixture of epoxy functionality silane；
The fibre diameter of described modification micro-nano cellulose is 10-50nm；
B. the preparation of aqueous high molecular：15g polyvinyl alcohol, 1.8g composite modifier are added in 100g water, is warming up to 95 DEG C, stirs
Mix reaction 45min, described aqueous high molecular is obtained；Described composite modifier is sodium bisulfate, corn starch and phthalic acid
Dibutyl ester is according to mass ratio 1：12：7 compound；
C. the preparation of biomass combined emulsion：28g Semen sojae atricolor powder is added in 100g silicate containing 2g and the aqueous solution of 3g modifying agent,
It is warming up to 40 DEG C, stirring reaction 55min, add 0.5g sodium bicarbonate and 3.5g emulsifying agent, after being warming up to 70 DEG C, Deca 20g connects
Branch monomer, Deca 3g peroxide, 20g5wt% sodium sulfite solution successively simultaneously, it is warming up to 95 DEG C, stirring reaction 120min,
Described biomass combined emulsion is obtained；Described peroxide is sodium peroxydisulfate；Described silicate is potassium silicate；Described modifying agent is
Carbamide and maleic anhydride in mass ratio 1：10 compound；Described emulsifying agent is sodium lauryl sulphate, alkylphenol-polyethenoxy
Ether and hexadecyltrimethylammonium chloride in mass ratio 1：1：1 compounds；Described grafted monomers are methyl methacrylate；
D. the preparation of host：The described aqueous high molecular that 6g step b is obtained is described biomass combined with what 100g step c was obtained
Emulsion mix homogeneously stirring at 95 DEG C is cooled to room temperature and host is obtained；
E. stress type cross-linking agent preparation：By polyisocyanates and stress modifying agent in mass ratio 1:1, under the protection of logical nitrogen, stirs
Mix and be warming up to 50 DEG C, react 180min, prepared performed polymer, be subsequently adding cross-linking agent, stirring cooling be obtained described stress type crosslinked
Agent；Described polyisocyanates is methyl diphenylene diisocyanate；Described stress modifying agent be polyetheramine；Described cross-linking agent is tool
There is the silane of organo-functional group, formula is Y-R-SiX3, X is hydrolysising group, and Y is organo-functional group；
F. the preparation of adhesive：The described modification micro-nano cellulose that be obtained 7g step a and 3g filler add step d to be obtained
Described host mix homogeneously, add 10g step e be obtained described stress type cross-linking agent mix homogeneously, finally be obtained glue
Stick, is named as L5；Described filler is montmorillonite.
Embodiment 6
A. the preparation of modified micro-nano cellulose：By the timber of removing lignin and hemicellulose or stalk fibre mass fraction
Acid solution for 40% stirring reaction 1.5h at 70 DEG C, formed cellulose paste, then by described cellulose paste add water regulation dense
Spend to 1.8%, then by the low temperature ultrasonic pretreatment under 7 DEG C, ultrasonic power 800W, supersonic frequency 22kHz of described cellulose paste
60min, then under 120MPa pressure, high pressure homogenize circulates 7 times by described cellulose paste, more described cellulose paste is added water
Adjust concentration to 1.5%, add 2% silane coupler of described cellulose paste quality and in 40 DEG C, nitrogen with gas velocity
After rate 18ml/min deoxygenation 7min, carry out original position ultrasonic reaction 5min under ultrasonic power 900W, supersonic frequency 22kHz, be obtained
Described modification micro-nano cellulose；Described silane coupler is epoxy functionality silane, methacryloxy functional groups silicon
The mixture of alkane；The fibre diameter of described modification micro-nano cellulose is 10-50nm；
B. the preparation of aqueous high molecular：12g polyvinyl alcohol, 1g composite modifier are added in 100g water, is warming up to 88 DEG C, stirring
Reaction 50min, is obtained described aqueous high molecular；Described composite modifier is sodium bisulfate, corn starch and phthalic acid two
Butyl ester is according to mass ratio 1：12：9 compound；
C. the preparation of biomass combined emulsion：20g Semen sojae atricolor powder is added the aqueous solution of 100g silicate containing 2g and 1.5g modifying agent
In, it is warming up to 50 DEG C, stirring reaction 50min, add 0.4g sodium bicarbonate and 2.5g emulsifying agent, Deca after being warming up to 70 DEG C
15g grafted monomers, Deca 2.5g peroxide, 15g5wt% sodium sulfite solution successively simultaneously, it is warming up to 88 DEG C, stirring reaction
150min, is obtained described biomass combined emulsion；Described peroxide is potassium peroxydisulfate；Described silicate is potassium silicate；Described
Modifying agent is carbamide and maleic anhydride in mass ratio 1：11 compound；Described emulsifying agent is sodium lauryl sulphate, alkyl phenol
Polyoxyethylene ether and hexadecyltrimethylammonium chloride in mass ratio 1：0.9：1.1 it is compounding；Described grafted monomers are vinyl acetate；
D. the preparation of host：The described aqueous high molecular that 6g step b is obtained is described biomass combined with what 100g step c was obtained
Emulsion mix homogeneously stirring at 88 DEG C is cooled to room temperature and host is obtained；
E. stress type cross-linking agent preparation：By polyisocyanates and stress modifying agent in mass ratio 1:1.3 under the protection of logical nitrogen,
Stirring is warming up to 75 DEG C, reacts 80min, prepared performed polymer, is subsequently adding cross-linking agent, stirring cooling be obtained described stress type crosslinked
Agent；Described polyisocyanates is polymethylene multi-phenenyl isocyanate, hexamethylene-diisocyanate, diphenyl methane two isocyanide
The mixture of acid esters；Described stress modifying agent be Polyethylene Glycol, polytetrahydrofuran diol, the mixture of polyetheramine；Described crosslinking
Agent is the silane with organo-functional group, and formula is Y-R-SiX3, X is hydrolysising group, and Y is organo-functional group；
F. the preparation of adhesive：The described modification micro-nano cellulose that be obtained 17g step a and 4g filler add step d to be obtained
Described host and mix homogeneously, add 13g step e be obtained described stress type cross-linking agent mix homogeneously, be finally obtained
Adhesive, is named as L6；Described filler is starch, tannin, kieselguhr, kaolinic mixture.
Comparative example 1
Except being " by the timber of removing lignin and hemicellulose or acid solution that stalk fibre mass fraction is 30% in step a
Stirring reaction 0.5h at 40 DEG C, forms cellulose paste, more described cellulose paste is added water regulation concentration to 1.8%, then will
Described cellulose paste pretreatment 10min under 20 DEG C, ultrasonic power 200W, supersonic frequency 15kHz, then by described cellulose slurry
Material high pressure homogenize under 250MPa pressure circulates 20 times, more described cellulose paste is added water regulation concentration to 1.5%, adds
2% silane coupler of described cellulose paste quality after 40 DEG C, nitrogen are with airflow rate 18ml/min deoxygenation 7min,
Carry out original position ultrasonic reaction 5min under ultrasonic power 400W, supersonic frequency 14kHz；Described silane coupler is amido functional group
Silane；" outward, implement comparative example 1 in the same manner as example 1, obtain adhesive, be named as D1.
Comparative example 2
Removing in step b is " to add 15g polyvinyl alcohol, 0.1g composite modifier in 100g water, be warming up to 50 DEG C, stirring reaction
20min；Described composite modifier is sodium bisulfate, corn starch and dibutyl phthalate according to mass ratio 1：5：3 is multiple
Join；" outward, implement comparative example 2 in the same manner as example 1, obtain adhesive, be named as D2.
Comparative example 3
Removing in step c is " to add 5g Semen sojae atricolor powder in 100g silicate containing 0.2g and the aqueous solution of 0.1g modifying agent, be warming up to 30
DEG C, stirring reaction 10min, add 0.1g sodium bicarbonate and 0.5g emulsifying agent, Deca 5g grafted monomers after being warming up to 40 DEG C, with
Shi Yici Deca 0.5g peroxide, 5g1wt% sodium sulfite solution, are warming up to 88 DEG C, stirring reaction 60min；Described peroxidating
Thing is sodium peroxydisulfate；Described silicate is potassium silicate；Described modifying agent is carbamide and maleic anhydride in mass ratio 1：5 is multiple
Join；Described emulsifying agent be sodium lauryl sulphate, alkylphenol polyoxyethylene and hexadecyltrimethylammonium chloride in mass ratio
1：0.5：1.5 it is compounding；Described grafted monomers are methyl methacrylate；" outward, implement contrast in the same manner as example 1
Embodiment 3, obtains adhesive, is named as D3.
Comparative example 4
Except step d is " the described biomass combined breast that the described aqueous high molecular that 1g step b is obtained is obtained with 100g step c
Liquid mix homogeneously stir and be cooled to room temperature at 30 DEG C；" outward, implement comparative example 4 in the same manner as example 1,
Obtain adhesive, be named as D4.
Comparative example 5
Except step e is " by polyisocyanates and stress modifying agent in mass ratio 1:0.1 under the protection of logical nitrogen, and stirring is warming up to
35 DEG C, react 30min, prepared performed polymer, be subsequently adding cross-linking agent and stir cooling；" outward, in the same manner as example 1
Implement comparative example 5, obtain adhesive, be named as D5.
Comparative example 6
Except step f is that " the described modification micro-nano cellulose be obtained 0.5g step a and 0.5g filler add step d to be obtained
Described host mix homogeneously, add 5g step e be obtained described stress type cross-linking agent mix homogeneously；" outward, with enforcement
Example 1 identical mode implements comparative example 6, obtains adhesive, is named as D6.
Comparative example 7
Prepare adhesive in the way of specific embodiment in technical scheme disclosed in patent CN104152088B 1, be named as
D7.
Comparative example 8
Prepare adhesive in the way of specific embodiment in technical scheme disclosed in patent CN103878833A 1, be named as
D8.
Above-mentioned adhesive L1-L6, D1-D8 are carried out with the detection of free formaldehyde and total volatile organism, testing result is：
Adhesive L1-L6, D1-D6 do not detect free formaldehyde, total volatile organism≤300g/L；The free first of adhesive D7-D8 detection
Aldehyde, total volatile organism ＞ 300g/L.
Above-mentioned adhesive L1-L6, D1-D8 are respectively applied to the preparation of recombinant decorative material, the pressing of cloth glue post-heating is respectively
Prepared recombinant decorative material CL1-CL6, CD1-CD8；Meanwhile, add the comparative example of one group of recombinant decorative material preparation, except " by L1 cloth
After glue, colded pressing " outward, to be applied to the preparation of recombinant decorative material with adhesive L1 identical mode, this comparative example cannot have
Effect is glued to be obtained recombinant decorative material.
Above-mentioned prepared recombinant decorative material CL1-CL6, CD1-CD8 are carried out with the detection of burst size of methanal and toughness, detection
Result is：Recombinant decorative material CL1-CL6, CD1-CD6 do not detect formaldehyde, and recombinant decorative material CD7-CD8 detects formaldehyde；Re-assemble
The good toughness of decoration materials CL1-CL6, the poor toughness of recombinant decorative material CD1-CD.
Described on end, a kind of environment-friendly toughened adhesive of recombinant decorative timber-used of the present invention, without formaldehyde, general volatile is organic
Thing is few, has the characteristics that the feature of environmental protection is high；A kind of environment-friendly toughened adhesive of recombinant decorative timber-used of the present invention has played modified micro-nano
The toughening effect of rice cellulose and biomass emulsion and the synergism of modified micro-nano cellulose, have extraordinary toughness reinforcing
Effect.Embodiment 1-6 is successfully obtained a kind of environment-friendly toughened adhesive L1-L6 of recombinant decorative timber-used of the present invention, has environmental protection
Toughness reinforcing feature, described adhesive L1-L6 is applied to the preparation of recombinant decorative material（Pressed by heating）, will not be to re-assemble
Decoration materials CL1-CL6 introduces formaldehyde, the feature of environmental protection of recombinant decorative material is greatly improved, simultaneously by the toughening effect of adhesive, significantly
Improve the toughness of recombinant decorative material CL1-CL6.Comparative example 1-6 employs irrational formula or irrational technology ginseng
Number, although the prepared adhesive D1-D6 feature of environmental protection is unaffected, toughening effect is weakened or even disappears, and causes application gluing
The recombinant decorative material CD1-CD6 poor toughness that agent D1-D6 is obtained.Comparative example 7-8 employs the adhesive that prior art is obtained
D7 and D8, all detects formaldehyde, and the feature of environmental protection is not high enough, and does not possess toughening effect, causes application adhesive D7-D8 to be obtained
Recombinant decorative material CD7 and CD8 all detects formaldehyde, inadequate environmental protection, and poor toughness.
Claims (9)
1. a kind of environment-friendly toughened adhesive of recombinant decorative timber-used is it is characterised in that described recombinant decorative timber-used is environment-friendly toughened gluing
Agent is made up of the raw material of following weight portion：Modified micro-nano cellulose 3-20 part, aqueous high molecular 5-10 part, biomass combined breast
100 parts of liquid, filler 1.5-5 part, stress type cross-linking agent 10-20 part；Multiple with described biomass by described aqueous high molecular 5-10 part
Close 100 parts of prepared hosts of emulsion, add described modification micro-nano cellulose 3-20 part in described host with filler 1.5-5 part simultaneously
Type cross-linking agent 10-20 part a kind of recombinant decorative timber-used environment-friendly toughened adhesive stress be obtained described in adding after mixing.
2. a kind of environment-friendly toughened adhesive of recombinant decorative timber-used according to claim 1 is it is characterised in that described modification is micro-
The fibre diameter of nano-cellulose is 10-50nm；Described modification micro-nano cellulose is to remove the wood of lignin and hemicellulose
Material or stalk fibre are raw material, and the acid solution being 30-60% with mass fraction stirring reaction 1-3h at 40-80 DEG C forms fiber
Plain slurry, then by described cellulose paste add water regulation concentration to 1.5-2%, then by described cellulose paste 5-10 DEG C, ultrasonic
Low temperature ultrasonic pretreatment 15-60min under power 300-1000W, supersonic frequency 18-22kHz, more described cellulose paste is existed
Under 50-150MPa pressure, high pressure homogenize circulates 2-10 time, more described cellulose paste is added water regulation concentration to 1-2%, adds
The silane coupler of 1-3% of described cellulose paste quality and in 30-50 DEG C, nitrogen with airflow rate 5-30ml/min deoxygenation
After 3-10min, carry out original position ultrasonic reaction 5-30min under ultrasonic power 600-900W, supersonic frequency 18-22kHz and be obtained；Institute
State silane coupler be amido functional group silane, epoxy functionality silane, in methacryloxy functional groups silane at least
A kind of.
3. the environment-friendly toughened adhesive of a kind of recombinant decorative timber-used according to claim 1 is it is characterised in that described aqueouss are high
Molecule is added in 100 parts of water by 10-20 weight account polyethylene alcohol, 0.5-3 weight portion composite modifier, is warming up to 80-95 DEG C, stirs
Mix reaction 40-80min to be obtained；Described composite modifier is sodium bisulfate, corn starch and dibutyl phthalate according to matter
Amount compares 1：10-20：5-10 compounds.
4. the environment-friendly toughened adhesive of a kind of recombinant decorative timber-used according to claim 1 is it is characterised in that described biomass
Complex emulsions, with 15-40 parts by weight of soybean powder as raw material, add 100 weight portion parts by weight silicate containing 1-3 and 0.5-5 weight portion
In the aqueous solution of modifying agent, be warming up to 40-60 DEG C, stirring reaction 30-60min, add 0.3-0.6 weight portion sodium bicarbonate and
1.5-5 parts by weight Emulsifier, Deca 10-30 weight portion grafted monomers after being warming up to 65-75 DEG C, Deca 1.5-4 is heavy successively simultaneously
Amount part peroxide, 10-30 weight portion 3-7wt% sodium sulfite solution, are warming up to 80-95 DEG C, stirring reaction 120-240min system
?；Described silicate is sodium silicate or potassium silicate；Described modifying agent is carbamide and maleic anhydride in mass ratio 1：8-12 is multiple
Join；Described emulsifying agent be sodium lauryl sulphate, alkylphenol polyoxyethylene and hexadecyltrimethylammonium chloride in mass ratio
1：0.8-1.2：0.8-1.2 compounds；Described peroxide is at least one of Ammonium persulfate., potassium peroxydisulfate, sodium peroxydisulfate；Described
Grafted monomers are one of vinyl acetate, methyl methacrylate, styrene.
5. a kind of environment-friendly toughened adhesive of recombinant decorative timber-used according to claim 1 is it is characterised in that described filler is
The mixture of one or more of flour, starch, tannin, kieselguhr, Kaolin, bentonite, Pulvis Talci, montmorillonite.
6. a kind of environment-friendly toughened adhesive of recombinant decorative timber-used according to claim 1 is it is characterised in that described stress type
Cross-linking agent is by mass ratio 1:The polyisocyanates of 0.5-1.5 proportioning and stress modifying agent under logical nitrogen is protected, stirring is warming up to
50-80 DEG C, react 60-180min, prepared performed polymer, be subsequently adding cross-linking agent, stirring cooling is obtained；Described polyisocyanates is
At least one of polymethylene multi-phenenyl isocyanate, hexamethylene-diisocyanate, methyl diphenylene diisocyanate；Described
Stress modifying agent be at least one of Polyethylene Glycol, polytetrahydrofuran diol, polyetheramine；Described cross-linking agent is to have organic functional
The silane of group, formula is Y-R-SiX3, X is hydrolysising group, and Y is organo-functional group.
7. the environment-friendly toughened adhesive of a kind of recombinant decorative timber-used according to claim 1 it is characterised in that described host by
Described aqueous high molecular 5-10 weight portion is mixed homogeneously at 80-95 DEG C and is stirred with described biomass combined emulsion 100 weight portion
Mix be cooled to room temperature be obtained.
8. the environment-friendly toughened adhesive of a kind of recombinant decorative timber-used according to any one of claim 1-7 is in recombinant decorative material system
Application in standby.
9. a kind of environment-friendly toughened adhesive of recombinant decorative timber-used according to claim 8 in recombinant decorative material preparation should
With it is characterised in that carrying out cloth glue with the environment-friendly toughened adhesive of described recombinant decorative timber-used on sheet material, then heat pressing and be obtained
Recombinant decorative material.
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| CN107286865A (en) * | 2017-07-11 | 2017-10-24 | 合肥龙发包装有限公司 | A kind of corrugated board adhesive |
| CN107779122A (en) * | 2017-11-17 | 2018-03-09 | 广东玉兰集团股份有限公司 | A kind of starch adhesive and preparation method thereof |
| CN108045037A (en) * | 2017-12-08 | 2018-05-18 | 德华兔宝宝装饰新材股份有限公司 | High durable type green recombinant decorative veneer and preparation method thereof |
| CN108410369A (en) * | 2018-04-23 | 2018-08-17 | 合肥市晨雷思建筑材料科技有限公司 | A kind of indoor decorating bonding agent and preparation method thereof |
| CN110216747A (en) * | 2019-05-31 | 2019-09-10 | 千年舟新材科技集团有限公司 | Water proof particleboard and its preparation process |
| CN111117527A (en) * | 2019-12-31 | 2020-05-08 | 河南省中凌煜新材料科技有限公司 | Water-based adhesive |
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| CN107286865A (en) * | 2017-07-11 | 2017-10-24 | 合肥龙发包装有限公司 | A kind of corrugated board adhesive |
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| CN108045037A (en) * | 2017-12-08 | 2018-05-18 | 德华兔宝宝装饰新材股份有限公司 | High durable type green recombinant decorative veneer and preparation method thereof |
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| CN111117527A (en) * | 2019-12-31 | 2020-05-08 | 河南省中凌煜新材料科技有限公司 | Water-based adhesive |
| CN111117552A (en) * | 2019-12-31 | 2020-05-08 | 河南省中凌煜新材料科技有限公司 | Dual-responsiveness composite adhesive and preparation method thereof |
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