CN105131223B - A kind of cyanurotriamide modified resin glue and preparation method for Flaxboard - Google Patents
A kind of cyanurotriamide modified resin glue and preparation method for Flaxboard Download PDFInfo
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- CN105131223B CN105131223B CN201510520591.XA CN201510520591A CN105131223B CN 105131223 B CN105131223 B CN 105131223B CN 201510520591 A CN201510520591 A CN 201510520591A CN 105131223 B CN105131223 B CN 105131223B
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- 229920005989 resin Polymers 0.000 title claims abstract description 52
- 239000011347 resin Substances 0.000 title claims abstract description 52
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000003292 glue Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 97
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 32
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims abstract description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 76
- 230000033228 biological regulation Effects 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 14
- 239000000779 smoke Substances 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 5
- 238000005034 decoration Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 7
- 239000004202 carbamide Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 235000019256 formaldehyde Nutrition 0.000 description 23
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 20
- 239000002023 wood Substances 0.000 description 13
- 239000007787 solid Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 9
- 238000009835 boiling Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 229920001807 Urea-formaldehyde Polymers 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000007731 hot pressing Methods 0.000 description 6
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 150000001299 aldehydes Chemical class 0.000 description 4
- 235000009508 confectionery Nutrition 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011120 plywood Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- DGXAGETVRDOQFP-UHFFFAOYSA-N 2,6-dihydroxybenzaldehyde Chemical compound OC1=CC=CC(O)=C1C=O DGXAGETVRDOQFP-UHFFFAOYSA-N 0.000 description 2
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- QDNBHWFDWXWFTG-UHFFFAOYSA-N benzene-1,3-diol;formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1.OC1=CC=CC(O)=C1 QDNBHWFDWXWFTG-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005829 trimerization reaction Methods 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 241000270708 Testudinidae Species 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- -1 cyanurotriamide modified formaldehyde Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical group O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Adhesives Or Adhesive Processes (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of cyanurotriamide modified resin glue and preparation method for Flaxboard, each component parts by weight are as follows：1,230 1600 parts of formaldehyde, 1,050 1300 parts of melamine, 40 80 parts of diethylene glycol (DEG), 30 80 parts of caprolactam, 700 1000 parts of water.By the way that melamine is replaced into urea, with production of melamine formaldehyde resin, the property of resin semi-transparent clear is not only remained, also causes the advantages that its storage period is applicable, cost is controllable, water-fast heat resistance improves, be normal temperature solidified.
Description
Technical field
The invention belongs to resin preparation field, more particularly to a kind of cyanurotriamide modified resin for Flaxboard
Glue and preparation method.
Background technology
For manufacture the wood raw material of laminated wood its thickness it is general all in more than 20mm, its length and width is then bigger,
And timber is the non-conductor of heat, therefore adhesive used in bonding large scale wood raw material should possess normal temperature (18~30 DEG C) bar
The ability solidified under part, or thermatron is set in wood bonding workshop section, to improve environment temperature, accelerate high temperature condition
The chemical reaction velocity of the adhesive of solidification.But the reasons such as high-frequency heating apparatus investment, equipment operation stability are considered, at present
Adhesive used in domestic laminated wood manufactory is normal temperature cured type adhesive.
The quick-setting wood structure adhesive of normal temperature now used in the domestic market has resorcinol-P-F
Resin, resorcinol-formaldehyde resin, urea-formaldehyde resin, melamine formaldehyde resin, melamine-urea-formaldehyde resin
With the major class of polyurethane five, but there is following deficiency：
(1) above-mentioned five major classes normal temperature cured type wood adhesive largely relies on the external imports such as Japan, Finland, is at present
Only, the normal temperature cure sqtructural adhesive that large-scale use China does not voluntarily research and develop and produced in domestic timber engineering, this
There is potential safety hazard to the sustainable and healthy development of the wooden structures component in China；
(2) when glue laminated wood member, which bonds, uses resorcinol phenol formaldehyde resin and resorcinol-formaldehyde resin, its
Adhesive property is excellent, but glue-line reddish black, extremely uncoordinated in appearance with the conventional thin shade timber that is bonded, and contain
Free phenol material has harmful effect to the health and environment of people；
(3) glue laminated wood member that urea-formaldehyde resin bonds, in the dry state using the requirement for meeting standard criterion,
And resin price is low, but change in outdoor or ambient temperature and humidity in more violent indoor environment, resin is influenceed by changing environment
Greatly, strand easy fracture, adhesion strength are lost comparatively fast, and application field is by larger limitation；
(4) melamine formaldehyde resin activity is high, and storage period is short, and the glue-line fragility after solidification is big, toughness deficiency, and sells
Valency is higher；
(5) the laminated wood normal temperature cured type melamine-urea-formaldehyde resin temporary unavailability in market at home；
(6) polyurethane based resin price is generally 2-4 times of resorcinol phenol formaldehyde resin, to domestic laminated wood structure
The cost control of part manufacturing enterprise brings difficulty.
Urea degree of functionality is 4, has 4 reactive hydrogen atoms that can be substituted in molecule, and melamine degree of functionality is 6,
All 6 hydrogen atoms of amino can be substituted by other active materials, have higher reactivity, therefore, urea and trimerization
Cyanamide can chemically react with formaldehyde, during the course of the reaction, generate methylol material by addition reaction first, then pass through
Step Condensation reacts, and formation has insoluble insoluble build thermosetting resin.
Urea-formaldehyde resin water white transparency is milky turbidity viscous liquid, general with more than 50% dry
Matter content, material cost is relatively low, but its urea raw material can also dissolve in cold water, and the resin remaining after solidification has hydrophilic
Methylol, glued membrane still have a certain degree of water imbibition, and vulnerable to boiling water, glued membrane is easy to aging, especially in high temperature height
Wet environment, therefore urea-formaldehyde resin is simply possible to use in weather conditions and fluctuated in little indoor environment, while urea reaction activity
Relatively low, completion of cure required time is longer at normal temperatures for its resin prepolymer liquid, resin storage period length.Comparatively speaking, trimerization
Solubility of the cyanamide in water is very low, has more degree of functionality again, therefore can react to form more friendships rapidly with formaldehyde
Connection, and melamine is cyclic structure in itself, therefore melmac has good water resistance, heat resistance and Geng Gao
Hardness, intensity, melamine formaldehyde resin are also water white transparency or are milky turbidity viscous liquid, after bonding timber
Visual appearance is good, but high there is melamine cost, and property is crisp easy to crack after resin solidification, the active storage period of resin properties
Short deficiency.
With developing rapidly for Chinese society doctrine economic construction, all trades and professions increasingly increase the demand of timber；And
China's timber reserves is increasingly reduced, and imbalance between supply and demand protrudes, and the processing of Wood products much can not meet economical production day
The needs opened up increasingly, therefore, explore the utilization of non-wooden material --- sheet material is made in particular with a large amount of annual crop bars
To replace wood-base fibre and particle panel material, more and more it is valued by people.In recent years, external making sheet production increases year by year, Flaxboard
Substitute wood-base fibre and particle panel material and obtain more and more extensive application in building field.But Flaxboard and cyanurotriamide modified resin
The combination of glue requires high, not only influences the surface quality of glued board, and the bonding strength of glued board can be caused to decline, and causes tortoise
Split and bubbling.
The content of the invention
The purpose of the present invention be to solve above-mentioned the deficiencies in the prior art, by being raw material by melamine and methanol, with
Production of melamine-formaldehyde resin, not only remain the property of resin semi-transparent clear, also cause its storage period be applicable, into
The advantages that heat resistance that this is controllable, water-fast improves, is normal temperature solidified.
In order to further improve the performance of cyanurotriamide modified formaldehyde resin, the present invention also uses diethylene glycol (DEG) and caprolactam
As modifying agent, the temperature applicable range of melamine resin is improved, is as a result shown, modified melamino-formaldehyde tree
Fat has different degrees of change in viscosity, pH value, muddy time, hardening time.
To achieve the above object, the present invention uses following technical proposals：
A kind of cyanurotriamide modified resin glue for Flaxboard, each component parts by weight are as follows：Formaldehyde 1230-
1600 parts, melamine 1050-1300 parts, diethylene glycol (DEG) 40-80 parts, caprolactam 30-80 parts, water 700-1000 parts.
The effect of diethylene glycol (DEG) is to carry out etherification reaction with formaldehyde, enclosure portion methylol, reduces reactivity, reinforced resin
Stability, its hydrophobicity and high temperature resistant are improved, improve its tack.
Wherein, when diethylene glycol (DEG) addition is less than 40 parts by weight, hydrophobicity, heat-resisting quantity are bad, the initial viscosity of resin
It is low.On the other hand, if the addition of diethylene glycol (DEG) is higher than 80 parts by weight, cost can be caused to raise.The present invention has been acknowledged by down
State result：If during scope of the content of diethylene glycol (DEG) more than 40 parts by weight and below 80 parts by weight, the hydrophobic of expectation can be obtained
Property, heat-resisting quantity and initial viscosity.
The effect of caprolactam is modified melamine-formaldehyde resin, encloses the water suction group of resin, makes the resistance to of resin
Water-based and resistance to ag(e)ing significantly improves, and improves muddy time and hardening time, improves anti-pollution and crack resistance energy.
When the content of caprolactam is less than 30 parts by weight, modified resin water resistance and ageing-resistant effect can be caused to weaken,
Closing force between the copolymer particle of modified resin declines, and anti-pollution and crack resistance can be bad.
On the other hand, when the content of caprolactam is higher than 80 parts by weight, heat-resisting quantity and initial viscosity be may result in
Decline, therefore, the addition of caprolactam is limited to below 80 parts by weight in the application, therefore above mentioned problem will not be produced.
Preferably, each component parts by weight are as follows：It is formaldehyde 1230-1500 parts, melamine 1050-1100 parts, two sweet
Alcohol 40-50 parts, caprolactam 30-60 parts, water 700-800 parts.
Preferably, each component parts by weight are as follows：1230 parts of formaldehyde, 1050 parts of melamine, 40 parts of diethylene glycol (DEG), in oneself
30 parts of acid amides, 700 parts of water.
Present invention also offers a kind of preparation method of the cyanurotriamide modified resin glue for Flaxboard, by first
Aldehyde mixes with water, and regulation pH value is 8.5-9.5, sequentially adds melamine and diethylene glycol (DEG), heating, is incubated at 85 DEG C -87 DEG C,
Survey between PH8.3-9.0, cloud point is surveyed in 10 degree of water, after going out cloud point, water smoke multiple is surveyed, when water smoke counts to 1 again：When 3, cooling；Drop
When temperature arrives 40-42 DEG C, caprolactam is added, regulation PH is 8.5-9.5, and water-soluble multiple is 1：2-4, it is incubated 15-20 minutes；Stop
Cooling, blowing, is produced.
Above-mentioned cyanurotriamide modified resin glue with decorative encasing particieboard or can prepare laminated structure component.
For the present invention due to taking above technical scheme, it has advantages below：
The present invention, it is determined that in initial reaction stage, uses melamine on the basis of traditional melamine formaldehyde resin synthesis technique
Amine and formaldehyde directly carry out polycondensation reaction, when free formaldehyde content is less in reaction solution, add the larger diethylene glycol (DEG) of reactivity,
In the later stage in the reaction, reacting liquid pH value is strictly controlled, enable the controllable progress of building-up process, finally added caprolactam and enter to advance
One step is modified.Course of reaction is steadily easy to control, favorable repeatability.
2. with synthesis melamine formaldehyde resin prepare laminated structure component, it include bonding strength, wood-breaking rate and
Adhesive property including glue-line integrality disclosure satisfy that《Structural glulam》(GB26899-2011) in II classes adhesive and《Wood
Structure testing method standard》(GB/T50329-2002) to the requirement of adhesive.Solidification can be achieved in resin normal temperature condition, can grasp
The property made is strong, and adhesion strength is high, disclosure satisfy that being actually needed for structural glulam.
3. the Storage period of resin of the present invention is more than 7 days, and color of resin is milky white to translucent, bonds the shallow timber glue-line of color
Color coordination is good, and application field is wide.
4. take full advantage of the high reaction activity of diethylene glycol (DEG) and caprolactam, and melamine formaldehyde resin it is low into
Person's character and toughness, the cyanurotriamide modified resin of invention due to not adding urea, avoid urea raw material and dissolved in cold water,
Resin remaining after solidification has the problem of hydrophilic methylol, and glued membrane infiltration is strong, strong to boiling water resistance, and glued membrane is not
It is easy to aging.
5th, the present invention is simple to operate, practical, easy to spread.
Embodiment
Mode by the following examples further illustrates the present invention, but does not therefore limit the present invention to described reality
Apply among a scope.The experimental method of unreceipted actual conditions, is conventionally selected with condition in the following example
Select.
Embodiment 1：
A kind of cyanurotriamide modified resin glue for Flaxboard, each component parts by weight are as follows：Formaldehyde 12300
Part, 1050 parts of melamine, 40 parts of diethylene glycol (DEG), 30 parts of caprolactam, 700 parts of water.
Preparation method is as follows：Formaldehyde is mixed with water, regulation pH value is 9.0 or so, sequentially adds melamine and two sweet
Alcohol, heating, is incubated at 85 DEG C-87 DEG C, surveys between PH8.3-9.0, cloud point is surveyed in 10 degree of water, after going out cloud point, surveys water smoke times
Number, when water smoke counts to 1 again：When 3, cooling；When cooling to 40 DEG C, caprolactam, regulation PH9.0 or so are added, water-soluble multiple is
1：2, it is incubated 15 minutes；Stop cooling, blowing, produce.
The resin technology index of embodiment 1 is as follows：
Table 1
| Outward appearance | Water white transparency, free from admixture |
| Solids content (%) | 60-65 |
| S/20 DEG C of viscosity | 25-30 applies 4# cups |
| Free methanol (%) | ≦0.2 |
| PH value | 7.0-7.5 |
| Storage period | 7-10 days |
The detection of cyanurotriamide modified resin glue in subordinate list 1, solids content are examined by GB/T14074-2006 3.5 regulations
Survey, viscosity is detected by GB/T14074-2006 3.3 regulations, and hardening time is detected by GB/T14074-2006 3.7 regulations, trip
Detected from formaldehyde by GB/T14074-2006 3.16 regulations, solids content uniformly refers to the solids content of institute's glue, free formaldehyde
Content is the mass fraction of unreacted monomer formaldehyde contained by the inside of whole glue.
E1/E0 levels type Ⅰ plywood is detected with the urea-formaldehyde-modified resin glue pressing plate of embodiment 1
The glued board room temperature of compacting detects after placing 5~7 days.Bonding strength by GB/T17657-1999 4.15 regulation
Detection, burst size of methanal are detected by 4.12 condensed steam waters in GB/T17657-1999.Veneer：Shive veneer, hot pressing
Technique：120-130 DEG C, 1.0Mpa, hot pressing time：5min.
As a result show：
100 DEG C of boiling water boiling 9h bonding strengths are 1.45Mpa, qualification rate 100%, Jia aldehyde Shi Fang Liang≤0.14mg/l.Table
The resistance to cracking in face：It is 0 grade, pollution-free corrosion-free.
Embodiment 2：
A kind of cyanurotriamide modified resin glue for Flaxboard, each component parts by weight are as follows：Formaldehyde 1600
Part, 1300 parts of melamine, 80 parts of diethylene glycol (DEG), 80 parts of caprolactam, 1000 parts of water.
Preparation method is as follows：Formaldehyde is mixed with water, regulation pH value is 9.0 or so, sequentially adds melamine and two sweet
Alcohol, heating, is incubated at 85 DEG C-87 DEG C, surveys between PH8.3-9.0, cloud point is surveyed in 10 degree of water, after going out cloud point, surveys water smoke times
Number, when water smoke counts to 1 again：When 3, cooling；When cooling to 42 DEG C, caprolactam, regulation PH9.0 or so are added, water-soluble multiple is
1：4, it is incubated 20 minutes；Stop cooling, blowing, produce.
The resin technology index of embodiment 2 is as follows：
Table 2
| Outward appearance | Water white transparency, free from admixture |
| Solids content (%) | 60-65 |
| S/20 DEG C of viscosity | 25-30 applies 4# cups |
| Free methanol (%) | ≦0.2 |
| PH value | 7.0-7.5 |
| Storage period | 7-10 days |
The detection of cyanurotriamide modified resin glue in subordinate list 1, solids content are examined by GB/T14074-2006 3.5 regulations
Survey, viscosity is detected by GB/T14074-2006 3.3 regulations, and hardening time is detected by GB/T14074-2006 3.7 regulations, trip
Detected from formaldehyde by GB/T14074-2006 3.16 regulations, solids content uniformly refers to the solids content of institute's glue, free formaldehyde
Content is the mass fraction of unreacted monomer formaldehyde contained by the inside of whole glue.
E1/E0 levels type Ⅰ plywood is detected with the urea-formaldehyde-modified resin glue pressing plate of embodiment 1
The glued board room temperature of compacting detects after placing 5~7 days.Bonding strength by GB/T17657-1999 4.15 regulation
Detection, burst size of methanal are detected by 4.12 condensed steam waters in GB/T17657-1999.Veneer：Shive veneer, hot pressing
Technique：120-130 DEG C, 1.0Mpa, hot pressing time：5min.
As a result show：
100 DEG C of boiling water boiling 9h bonding strengths are 1.43Mpa, qualification rate 100%, Jia aldehyde Shi Fang Liang≤0.13mg/l.Table
The resistance to cracking in face：It is 0 grade, pollution-free corrosion-free.
Embodiment 3：
A kind of cyanurotriamide modified resin glue for Flaxboard, each component parts by weight are as follows：Formaldehyde 1500
Part, 1100 parts of melamine, 50 parts of diethylene glycol (DEG), 60 parts of caprolactam, 800 parts of water.
Preferably, each component parts by weight are as follows：1230 parts of formaldehyde, 1050 parts of melamine, 40 parts of diethylene glycol (DEG), in oneself
30 parts of acid amides, 700 parts of water.
Preparation method is as follows：Formaldehyde is mixed with water, regulation pH value is 9.0 or so, sequentially adds melamine and two sweet
Alcohol, heating, is incubated at 85 DEG C-87 DEG C, surveys between PH8.3-9.0, cloud point is surveyed in 10 degree of water, after going out cloud point, surveys water smoke times
Number, when water smoke counts to 1 again：When 3, cooling；When cooling to 40 DEG C, caprolactam, regulation PH9.0 or so are added, water-soluble multiple is
1：2, it is incubated 15 minutes；Stop cooling, blowing, produce.
The resin technology index of embodiment 3 is as follows：
Table 3
| Outward appearance | Water white transparency, free from admixture |
| Solids content (%) | 60-65 |
| S/20 DEG C of viscosity | 25-30 applies 4# cups |
| Free methanol (%) | ≦0.2 |
| PH value | 7.0-7.5 |
| Storage period | 7-10 days |
The detection of cyanurotriamide modified resin glue in subordinate list 1, solids content are examined by GB/T14074-2006 3.5 regulations
Survey, viscosity is detected by GB/T14074-2006 3.3 regulations, and hardening time is detected by GB/T14074-2006 3.7 regulations, trip
Detected from formaldehyde by GB/T14074-2006 3.16 regulations, solids content uniformly refers to the solids content of institute's glue, free formaldehyde
Content is the mass fraction of unreacted monomer formaldehyde contained by the inside of whole glue.
E1/E0 levels type Ⅰ plywood is detected with the urea-formaldehyde-modified resin glue pressing plate of embodiment 1
The glued board room temperature of compacting detects after placing 5~7 days.Bonding strength by GB/T17657-1999 4.15 regulation
Detection, burst size of methanal are detected by 4.12 condensed steam waters in GB/T17657-1999.Veneer：Shive veneer, hot pressing
Technique：120-130 DEG C, 1.0Mpa, hot pressing time：5min.
As a result show：
100 DEG C of boiling water boiling 9h bonding strengths are 1.41Mpa, qualification rate 100%, Jia aldehyde Shi Fang Liang≤0.12mg/l.Table
The resistance to cracking in face：It is 0 grade, pollution-free corrosion-free.
Although the above-mentioned embodiment to the present invention is described, not to the limit of the scope of the present invention
System, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art need not pay
Go out creative work, you can the various modifications or deformation made, still within protection scope of the present invention.
Claims (5)
1. a kind of cyanurotriamide modified resin glue for Flaxboard, it is characterised in that each component parts by weight are as follows：
Formaldehyde 1230-1600 parts, melamine 1050-1300 parts, diethylene glycol (DEG) 40-80 parts, caprolactam 30-80 parts, water 700-1000
Part,
The preparation method of the cyanurotriamide modified resin glue of the Flaxboard is：Formaldehyde is mixed with water, adjusts pH value
For 8.5-9.5, melamine and diethylene glycol (DEG) are sequentially added, heats up, is incubated at 85 DEG C-87 DEG C, is surveyed between pH value 8.3-9.0,
Cloud point is surveyed in 10 DEG C of water, after going out cloud point, water smoke multiple is surveyed, when water smoke counts to 1 again：When 3, cooling；When cooling to 40-42 DEG C, add
Enter caprolactam, regulation pH value is 8.5-9.5, and water-soluble multiple is 1：2-4, it is incubated 15-20 minutes；Stop cooling, blowing, i.e.,
.
2. cyanurotriamide modified resin glue as claimed in claim 1, it is characterised in that each component parts by weight are as follows：Formaldehyde
1230-1500 parts, melamine 1050-1100 parts, diethylene glycol (DEG) 40-50 parts, caprolactam 30-60 parts, water 700-800 parts.
3. the cyanurotriamide modified resin glue as described in claim 1-2 is any, it is characterised in that each component parts by weight are such as
Under：1230 parts of formaldehyde, 1050 parts of melamine, 40 parts of diethylene glycol (DEG), 30 parts of caprolactam, 700 parts of water.
4. application of any described cyanurotriamide modified resin glues of claim 1-2 in facing particieboard decoration.
5. application of any described cyanurotriamide modified resin glues of claim 1-2 in laminated structure component is prepared.
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| Application Number | Priority Date | Filing Date | Title |
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| CN107526198B (en) * | 2017-08-23 | 2020-07-28 | 京东方科技集团股份有限公司 | Display device |
| CN108034031A (en) * | 2017-12-11 | 2018-05-15 | 云南新泽兴人造板有限公司 | A kind of high-concentration formaldehyde Lauxite preshrunk liquid synthesis technique |
| CN109880034B (en) * | 2019-01-25 | 2021-09-28 | 广东天元汇邦新材料股份有限公司 | Anti-fingerprint melamine resin and preparation method and application thereof |
| CN110894273A (en) * | 2019-12-05 | 2020-03-20 | 江苏长顺高分子材料研究院有限公司 | Melamine aldehyde-based adhesive resin with good storage stability and preparation method thereof |
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