CN103433984B - Producing method of heat-resisting full eucalyptus laminated veneer - Google Patents
Producing method of heat-resisting full eucalyptus laminated veneer Download PDFInfo
- Publication number
- CN103433984B CN103433984B CN201310353332.3A CN201310353332A CN103433984B CN 103433984 B CN103433984 B CN 103433984B CN 201310353332 A CN201310353332 A CN 201310353332A CN 103433984 B CN103433984 B CN 103433984B
- Authority
- CN
- China
- Prior art keywords
- temperature
- hot pressing
- formaldehyde
- time
- pressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 244000166124 Eucalyptus globulus Species 0.000 title claims abstract 7
- 238000007731 hot pressing Methods 0.000 claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 230000005855 radiation Effects 0.000 claims abstract description 27
- 238000004026 adhesive bonding Methods 0.000 claims abstract 2
- 238000009423 ventilation Methods 0.000 claims abstract 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 109
- 238000006243 chemical reaction Methods 0.000 claims description 31
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 21
- 239000004202 carbamide Substances 0.000 claims description 21
- 238000005034 decoration Methods 0.000 claims description 19
- 238000003475 lamination Methods 0.000 claims description 19
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000004513 sizing Methods 0.000 claims description 13
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 abstract description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 5
- 239000000758 substrate Substances 0.000 abstract 1
- 241000219927 Eucalyptus Species 0.000 description 42
- 235000019256 formaldehyde Nutrition 0.000 description 35
- 239000002023 wood Substances 0.000 description 17
- 238000005498 polishing Methods 0.000 description 14
- 238000001816 cooling Methods 0.000 description 13
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 239000004576 sand Substances 0.000 description 7
- 239000000178 monomer Substances 0.000 description 5
- 229920001807 Urea-formaldehyde Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 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 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Landscapes
- Veneer Processing And Manufacture Of Plywood (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a producing method of a heat-resisting full eucalyptus laminated veneer. An artificial board is formed through high-temperature pressing and pasting melamine gummed paper and a substrate formed by multilayer eucalyptus single boards through adhesive bonding, and the producing method comprises the steps of single board sorting, gumming, cold pressing, hot pressing, stacking health maintenance and melamine gummed paper pasting. The producing method is characterized in that three-time cold pressing, three-time hot pressing, twice constant -temperature-room standing health maintenance and twice heat radiation health maintenance are adopted; the cold pressing temperature is room temperature, the cold pressing pressure is 0.5 to 0.8MPa, and the hot pressing pressure is 0.8 to 1.0MPa; the temperature of the first hot pressing is 115 to 120 DEG C; the temperature of the second hot pressing is 110 to 115 DEG C, and the temperature of the third hot pressing is 120 to 125 DEG C; the temperature of the constant-temperature-room standing health maintenance is 60 to 80 DEG C, and the time is 5 to 8 hours; the heat radiation health maintenance adopts the mode that the constant-temperature -room is cooled to the room temperature through natural ventilation, and the time is 3 to 4 hours.
Description
Technical field
The present invention relates to a kind of Wood-based Panel Production method, particularly a kind of manufacture method of heat-resisting full Eucalyptus lamination decoration panel.
Background technology
Eucalyptus is the general designation that Myrtaceae Myrtaceae eucalyptus belongs to Eucalyptus plant, and eucalyptus strong adaptability also can grow in dead soil, and fast growth, nursing cost is low, and therefore cultivated area increases year by year.Eucalyptus Wood is red, glossy, without special odor, texture is staggered, structure is close, material is firmly heavy, flexible.Level larger eucalyptus in footpath is by being peeled into veneer, glued board or laminated veneer lumber is produced as central layer, and small diameter grade, brush wood or the eucalyptus that is difficult to rotary-cut are processed into wood chip, for papermaking or producd fibers plate, therefore the comprehensive utilization ratio of eucalyptus can be increased to more than 90%.China successfully developed high-performance Eucalyptus recombinant material, Eucalyptus laminated veneer lumber, bamboo eucalyptus matrix material, thick core eucalyptus composite plate made from solid wood and without aldehyde Eucalyptus plywood making technology etc. in recent years, and Eucalyptus is more and more universal in the application of wood-based plate.
Eucalyptus structure is close, material is hard, after Eucalyptus the laminated veneer lumber easy delamination, particularly life-time service of making or the moisture absorption, easily plays drum.The climate temperature in southern summer is high, high humidity, and Eucalyptus wood-based plate absorbs moisture, easy dilatational strain.The method addressed this is that at present is the resin added increasing unit surface, to improve Eucalyptus bonding force between layers.But resin added increases, and burst size of methanal is difficult to the burst size of methanal standard reaching national requirements.Adopt without aldehyde sizing agent, cost is difficult to again accept.
Summary of the invention
The object of this invention is to provide a kind of heat-resisting full Eucalyptus lamination decoration panel, can life-time service and nonhygroscopic distortion under the environment of high-temperature high-humidity for a long time, the present invention discloses the production method of this full Eucalyptus lamination decoration panel equally, being solved drum problem on the one hand, is reduce burst size of methanal on the one hand.
Technical scheme of the present invention is as follows:
In the production process of base material, adopt cold pressing for three times, three hot pressing, twice thermostatic chamber leave standstill health and overcome bulging phenomenon with the method for heat radiation health.Concrete production technique is as follows:
Manually select Eucalyptus veneer of the same size, coat above-mentioned sizing agent, resin added is generally 200 ~ 300g/m
2, assembly (3 ~ 15 layers), first time colds pressing, and temperature is normal temperature, and pressure is 0.5 ~ 0.8MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 0.8 ~ 1.0MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 0.5 ~ 0.8MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 0.8 ~ 1.0MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 0.5 ~ 0.8MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 0.8 ~ 1.0MPa, determine thick with coarse sand and fine sandpaper polishing, paste low face side, polishing face side, face side sticks trimeric cyanamide gum dipped paper, hot pressing, and temperature is 120 DEG C, pressure is 1.5MPa, heat radiation arranges, and beats limit, obtains heat-resisting full Eucalyptus lamination decoration panel.
Reduce the burst size of formaldehyde, first will from improvement adhesive-preparing technology, by improving adhesive-preparing technology, making raw material formaldehyde almost or complete reaction, reducing the residual quantity of formaldehyde.The employing of this adhesive-preparing technology is disposable adds formaldehyde, adds urea at twice, and the method for a trimeric cyanamide promotes the complete reaction of formaldehyde.Formaldehyde is added in reactor, be 2 ~ 2.5 by formic acid adjust ph, add the polyvinyl alcohol of formaldehyde weight 0.5 ~ 0.6%, add the urea of formaldehyde weight 10%, be warming up to 50 DEG C, insulation reaction 30min, the pH value regulating reaction solution is 8 ~ 8.5, add the urea of formaldehyde weight 25%, add the trimeric cyanamide of formaldehyde weight 1%, be warming up to 90 ~ 95 DEG C, insulation reaction 90min, reaction terminates rear inspection, if also containing formaldehyde, add appropriate urea or trimeric cyanamide continuation reaction, until detect the content < 5mg/L of formaldehyde, adding alkali regulates the pH value of reaction end liquid to be 7.2 ~ 7.5.Amino generation polycondensation on aldehyde radical on formaldehyde molecule and urea or melamine molecule, generate macromolecular compound, along with constantly carrying out of condensation reaction, the molecular weight of the material that polycondensation generates constantly increases, reaction solution viscosity is caused to increase, mobility is deteriorated, reduce the probability of the collision of formaldehyde and the urea do not reacted, and the superpolymer embedding formaldehyde generated and urea, cause the formaldehyde outside superpolymer and urea effectively internally not to supplement, cause the inner polymericular weight generated low.Polymericular weight is low, easily degrades, release formaldehyde.Therefore the one-step technology before, namely disposablely adds formaldehyde and urea, and easily cause reaction in early stage violent, embedding phenomenon is very serious.So-called embedding phenomenon is exactly in polyreaction, generate high molecular polymer encase polymerization single polymerization monomer, the also polymerization reaction take place of the monomer inside high molecular polymer, but due to outside monomer cannot give the inside reaction supplement, therefore, the polymericular weight that wraps of high molecular polymer is very little.The polymer substance molecular weight distribution that this phenomenon causes polyreaction to obtain is very wide, and level of residual monomers is very large.Because single stage method reaction in early stage is violent, reaction polymericular weight in early stage is very large, and later stage molecular weight is little, the formaldehyde of non-complete reaction is many, the sizing agent molecular weight distribution made is very wide, the artificial board formaldehyde burst size made with this sizing agent is very large, and high risks user's is healthy.Added the novel process of urea by gradation, avoid reaction in early stage too violent, the polymericular weight of reacting generation after adding urea for the first time can not be very large, because the amount that first time adds urea is little, the polymkeric substance generated is few, and viscosity is low, the good fluidity of material, do not have the phenomenon of embedding, therefore the molecular weight distribution of polymkeric substance is comparatively even, and second time adds urea, because the concentration of formaldehyde in reaction solution has reduced much, reaction is also relatively more steady, and it is not very serious for therefore embedding phenomenon.
Formaldehyde is complete reaction almost, molecular weight of polycondensates narrowly distributing, and molecular weight is high, difficult degradation, and as the sizing agent of veneer, burst size of methanal is naturally low.
The positively effect that the present invention produces is:
1. office furniture of the present invention adopt by full Eucalyptus lamination decoration panel production technique cold pressing for three times, three hot pressing, twice thermostatic chamber leaves standstill the production technique of health and twice heat radiation health, the stress of Eucalyptus intralamellar part can be eliminated, expand with heat and contract with cold after avoiding finished product to be heated to act on and hold the generation of yielding situation, and reduce the possibility that finished product meets water, the moisture absorption plays drum, is out of shape.Use the technique in the present invention, finished product burst size of methanal can also be reduced, protect the health of human consumer.
2. office furniture of the present invention is the technique adopting gradation to add urea with the urea-formaldehyde resin adhesive that full Eucalyptus lamination decoration panel adopts, formaldehyde monomers less residue, in conjunction with the repeatedly cold, hot pressure technique that the present invention adopts, the burst size of methanal of finished product is less, more environmental protection.
Embodiment
Embodiment 1
First sizing agent is prepared: add formaldehyde in a kettle., be 2 ~ 2.5 by formic acid adjust ph, add the polyvinyl alcohol of formaldehyde weight 0.5 ~ 0.6%, add the urea of formaldehyde weight 10%, be warming up to 50 DEG C, insulation reaction 30min, the pH value regulating reaction solution is 8 ~ 8.5, add the urea of formaldehyde weight 25%, add the trimeric cyanamide of formaldehyde weight 1%, be warming up to 90 ~ 95 DEG C, insulation reaction 90min, reaction terminates rear inspection, if also containing formaldehyde, add appropriate urea or trimeric cyanamide continuation reaction, until detect the content < 5mg/L of formaldehyde, adding alkali regulates the pH value of reaction end liquid to be 7.2 ~ 7.5.
Manually select Eucalyptus veneer of the same size, coat above-mentioned sizing agent, resin added is 300g/ ㎡, assembly 5 layers, and first time colds pressing, and temperature is normal temperature, and pressure is 0.5MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 0.8MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 0.5MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 0.8MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 0.5MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 0.8MPa, determine thick with coarse sand and fine sandpaper polishing, paste low face side, polishing face side, face side sticks trimeric cyanamide gum dipped paper, hot pressing, and temperature is 120 DEG C, pressure is 1.5MPa, heat radiation arranges, and beats limit, obtains heat-resisting full Eucalyptus lamination decoration panel.
Embodiment 2
Manually select Eucalyptus veneer of the same size, coat the sizing agent of embodiment 1, resin added is 250g/ ㎡, assembly (7 layers), and first time colds pressing, and temperature is normal temperature, and pressure is 0.65MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 0.9MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 0.65MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 0.9MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 0.65MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 0.9MPa, determine thick with coarse sand and fine sandpaper polishing, paste low face side, polishing face side, face side sticks trimeric cyanamide gum dipped paper, hot pressing, and temperature is 120 DEG C, pressure is 1.5MPa, heat radiation arranges, and beats limit, obtains heat-resisting full Eucalyptus lamination decoration panel.
Embodiment 3
Manually select Eucalyptus veneer of the same size, coat the sizing agent of embodiment 1, resin added is 200g/ ㎡, assembly (9 layers), and first time colds pressing, and temperature is normal temperature, and pressure is 0.8MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 1.0MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 0.8MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 1.0MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 0.8MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 1.0MPa, determine thick with coarse sand and fine sandpaper polishing, paste low face side, polishing face side, face side sticks trimeric cyanamide gum dipped paper, hot pressing, and temperature is 120 DEG C, pressure is 1.5MPa, heat radiation arranges, and beats limit, obtains heat-resisting full Eucalyptus lamination decoration panel.
comparative example 1
Manually select Eucalyptus veneer of the same size, coat the sizing agent of embodiment 1, resin added is 300g/ ㎡, and assembly (11 layers), colds pressing, and temperature is normal temperature, and pressure is 2MPa, hot pressing, and temperature is 120 ~ 125 DEG C, and pressure is 3MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Determine thick with coarse sand and fine sandpaper polishing, paste low face side, polishing face side, face side sticks trimeric cyanamide gum dipped paper, hot pressing, and temperature is 160 DEG C, and pressure is 1.5MPa, and heat radiation arranges, and beats limit, obtains heat-resisting full Eucalyptus lamination decoration panel.
comparative example 2
Manually select Eucalyptus veneer of the same size, coat the sizing agent of embodiment 1, resin added is 300g/ ㎡, assembly (11 layers), and first time colds pressing, and temperature is normal temperature, and pressure is 1.5MPa, first time hot pressing, and temperature is 115 ~ 120 DEG C, and pressure is 2.0MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 1.5MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 2.0MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Determine thick with coarse sand and fine sandpaper polishing, paste low face side, polishing face side, face side sticks trimeric cyanamide gum dipped paper, hot pressing, and temperature is 160 DEG C, and pressure is 1.5MPa, and heat radiation arranges, and beats limit, obtains heat-resisting full Eucalyptus lamination decoration panel.
comparative example 3
Manually select Eucalyptus veneer of the same size, coat that market is bought or that ordinary process is produced urea-formaldehyde resin adhesive, resin added is 200g/ ㎡, assembly (9 layers), first time colds pressing, and temperature is normal temperature, and pressure is 0.8MPa, first time hot pressing, temperature is 115 ~ 120 DEG C, and pressure is 1.0MPa; 60 ~ 80 DEG C of thermostatic chambers leave standstill health 5 ~ 8 hours, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Second time is colded pressing, and temperature is normal temperature, and pressure is 0.8MPa, second time hot pressing, and temperature is 110 ~ 115 DEG C, and pressure is 1.0MPa; Second time thermostatic chamber leaves standstill health, and thermostatic chamber temperature is 60 ~ 80 DEG C, time 90 ~ 120min, the naturally ventilated cooling of thermostatic chamber, heat radiation health 3 ~ 4h; Third time colds pressing, and temperature is normal temperature, and pressure is 0.8MPa, third time hot pressing, temperature is 120 ~ 125 DEG C, and pressure is 1.0MPa, determine thick with coarse sand and fine sandpaper polishing, paste low face side, polishing face side, face side sticks trimeric cyanamide gum dipped paper, hot pressing, and temperature is 120 DEG C, pressure is 1.5MPa, heat radiation arranges, and beats limit, obtains heat-resisting full Eucalyptus lamination decoration panel.
According to GB18580-2001 " in indoor decorating and refurnishing materials wood-based plate and goods thereof burst size of methanal limitation ", the burst size of methanal of products obtained therefrom in embodiment is measured; According to GB/T9846---the bonding strength of method to embodiment products obtained therefrom detected in 2004 " glued boards " measures; The mensuration playing drum phenomenon of wood-based plate adopts water-boiling method, namely wood-based plate is cut out as 80cm(length) × 30cm(is wide) specification, the thermostat(t)ed water putting into 80 DEG C soaks, record wood-based plate plays the drum time used, and the time is longer, illustrates that the quality of wood-based plate is better, under normal circumstances uses, more difficult drum.Each embodiment products obtained therefrom detects three times, and data are averaged, and every detected result is as shown in the table:
It can be seen from the table, heat-resisting full Eucalyptus lamination decoration panel of the present invention adopt cold pressing for three times, three hot pressing, the production technique that twice thermostatic chamber leaves standstill health and twice heat radiation health can improve the bonding strength of wood-based plate, reduce burst size of methanal, because reduce the stress that full Eucalyptus lamination decoration panel inside produces, also easily can not be out of shape even if wood-based plate expands with heat and contract with cold because being heated, improve the thermotolerance of wood-based plate; The reduction of burst size of methanal is except outside the Pass having with production technique; also relevant with the production technique of urea-formaldehyde resin adhesive; therefore the production technique and employing Wood-based Panel Production technique of the present invention of improving urea-formaldehyde resin adhesive is only had; the burst size of methanal of wood-based plate could be reduced to greatest extent, protection living environment.Heat-resisting full Eucalyptus lamination decoration panel good heat resistance of the present invention, can under high humidity, hot environment life-time service, be adapted at southern area use.
Claims (2)
1. the production method of heat-resisting full Eucalyptus lamination decoration panel, the base material that this heat-resisting full Eucalyptus lamination decoration panel is bondd by sizing agent by multilayer Eucalyptus veneer and trimeric cyanamide gum dipped paper high temperature overlay and form, comprise veneer sorting, gluing, cold pressing, hot pressing, stacking health and paste trimeric cyanamide gum dipped paper step, it is characterized in that: adopt and cold pressing for three times and three hot pressing, twice thermostatic chamber leaves standstill health and twice heat radiation health; Described temperature of colding pressing is room temperature, and pressure is 0.5 ~ 0.8MPa, and hot pressing pressure is 0.8 ~ 1.0MPa; The temperature of first time hot pressing is 115 ~ 120 DEG C; The temperature of second time hot pressing is 110 ~ 115 DEG C, and the temperature of third time hot pressing is 120 ~ 125 DEG C; It is 60 ~ 80 DEG C that described thermostatic chamber leaves standstill health temperature, and the time is 5 ~ 8h; Described heat radiation health is that thermostatic chamber natural ventilation is cooled to room temperature, and the time is 3 ~ 4h; The temperature of base material pasting trimeric cyanamide gum dipped paper is 120 DEG C, and pressure is 1.5Mpa;
The production technique of described sizing agent is as follows: adhesive-preparing technology employing is disposable adds formaldehyde, adds urea at twice, and the method for a trimeric cyanamide promotes the complete reaction of formaldehyde, add formaldehyde in a kettle., be 2 ~ 2.5 by formic acid adjust ph, add the polyvinyl alcohol of formaldehyde weight 0.5 ~ 0.6%, add the urea of formaldehyde weight 10%, be warming up to 50 DEG C, insulation reaction 30min, the pH value regulating reaction solution is 8 ~ 8.5, add the urea of formaldehyde weight 25%, add the trimeric cyanamide of formaldehyde weight 1%, be warming up to 90 ~ 95 DEG C, insulation reaction 90min, reaction terminates rear inspection, if also containing formaldehyde, add appropriate urea or trimeric cyanamide continuation reaction, until detect the content < 5mg/L of formaldehyde, adding alkali regulates the pH value of reaction end liquid to be 7.2 ~ 7.5.
2. the heat-resisting full Eucalyptus lamination decoration panel obtained by production method according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353332.3A CN103433984B (en) | 2013-08-14 | 2013-08-14 | Producing method of heat-resisting full eucalyptus laminated veneer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353332.3A CN103433984B (en) | 2013-08-14 | 2013-08-14 | Producing method of heat-resisting full eucalyptus laminated veneer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103433984A CN103433984A (en) | 2013-12-11 |
| CN103433984B true CN103433984B (en) | 2015-04-29 |
Family
ID=49687745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310353332.3A Expired - Fee Related CN103433984B (en) | 2013-08-14 | 2013-08-14 | Producing method of heat-resisting full eucalyptus laminated veneer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103433984B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290150A (en) * | 2014-09-26 | 2015-01-21 | 潘学扬 | Plywood or synclastic laminated material leveling method |
| CN104441105B (en) * | 2014-11-12 | 2016-09-07 | 广西鹿寨北林胶合板有限公司 | Method for producing plywood by adopting lignin adhesive |
| CN104760107B (en) * | 2015-03-30 | 2017-03-08 | 广西宾阳县荣良新材料科技有限公司 | A kind of scavenger reduces the production method of solid wooden compound floor formaldehyde |
| CN116512364A (en) * | 2023-02-24 | 2023-08-01 | 湖北华盛新人造板有限公司 | Production process of fir veneer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1086915A2 (en) * | 1999-09-22 | 2001-03-28 | C.B.T. S.r.l. | Method for obtaining a continuous wooden sheet in roll form |
| CN101244571A (en) * | 2008-03-21 | 2008-08-20 | 中国林业科学研究院林产化学工业研究所 | Method for manufacturing E0 level wood veneer |
| CN102060967A (en) * | 2010-12-01 | 2011-05-18 | 刘有志 | Preparation method of melamin resin for impregnating wood grain paper |
| CN102259366A (en) * | 2011-08-05 | 2011-11-30 | 李源林 | Production technology of compound core-boards |
| CN102391805A (en) * | 2011-07-18 | 2012-03-28 | 广西大学 | Modified urea-formaldehyde resin adhesive for concrete formwork and production method of adhesive |
| CN102514052A (en) * | 2011-12-26 | 2012-06-27 | 王佐生 | Veneer special for wood blade of classical ceiling fan and preparation method for plywood |
| CN102785273A (en) * | 2012-08-31 | 2012-11-21 | 广西南宁绿园北林木业有限公司 | Three-hot-pressing and two-sanding eucalyptus poplar composite artificial board and method for manufacturing same |
-
2013
- 2013-08-14 CN CN201310353332.3A patent/CN103433984B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1086915A2 (en) * | 1999-09-22 | 2001-03-28 | C.B.T. S.r.l. | Method for obtaining a continuous wooden sheet in roll form |
| CN101244571A (en) * | 2008-03-21 | 2008-08-20 | 中国林业科学研究院林产化学工业研究所 | Method for manufacturing E0 level wood veneer |
| CN102060967A (en) * | 2010-12-01 | 2011-05-18 | 刘有志 | Preparation method of melamin resin for impregnating wood grain paper |
| CN102391805A (en) * | 2011-07-18 | 2012-03-28 | 广西大学 | Modified urea-formaldehyde resin adhesive for concrete formwork and production method of adhesive |
| CN102259366A (en) * | 2011-08-05 | 2011-11-30 | 李源林 | Production technology of compound core-boards |
| CN102514052A (en) * | 2011-12-26 | 2012-06-27 | 王佐生 | Veneer special for wood blade of classical ceiling fan and preparation method for plywood |
| CN102785273A (en) * | 2012-08-31 | 2012-11-21 | 广西南宁绿园北林木业有限公司 | Three-hot-pressing and two-sanding eucalyptus poplar composite artificial board and method for manufacturing same |
Non-Patent Citations (1)
| Title |
|---|
| 程时远.氨基树脂胶黏剂.《胶黏剂》.2010,193-202. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103433984A (en) | 2013-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103406951B (en) | The production method of a kind of protection against the tide full Eucalyptus lamination decoration panel | |
| CN103406966B (en) | The timber floor production method of full Eucalyptus buildup circuit plate | |
| CN103406949B (en) | The timber floor production method of full Eucalyptus laminated board | |
| CN103406952B (en) | A kind of office furniture production method of full Eucalyptus lamination decoration panel | |
| CN104774588B (en) | A kind of albumen base timber adhesive and its preparation method and application and application method | |
| CN106883366B (en) | A kind of E0Grade cyanurotriamide modified urea resin adhesive | |
| CN103433984B (en) | Producing method of heat-resisting full eucalyptus laminated veneer | |
| CN103484045B (en) | Adhesive with ultralow formaldehyde release amount, and preparation method of same | |
| CN110819276B (en) | High-strength low-formaldehyde glue and preparation method thereof | |
| CN111171314A (en) | Modified PAE resin crosslinking agent, modified adhesive and application | |
| CN103406953B (en) | A kind of production method of freeze proof full Eucalyptus lamination decoration panel | |
| CN111002425A (en) | Wood shaving composite facing ecological board and manufacturing method thereof | |
| CN104559875A (en) | Melamine modified urea-formaldehyde resin adhesive and preparation method thereof | |
| CN109355046A (en) | A kind of Environment-friendlyadhesive adhesive and preparation method thereof | |
| CN103406950B (en) | Anti-exposure eucalyptus laminated wood veneer and production method thereof | |
| CN104789152A (en) | Melamine modified urea resin packing and preparation method thereof | |
| CN105131223A (en) | Melamine modified resin adhesive for flax chip shaving boards, and preparation method thereof | |
| CN104513641B (en) | The preparation method of low burst size of methanal adhesive | |
| CN104404837A (en) | Environment-friendly medium-high-density fibreboard and production method thereof | |
| CN104513640B (en) | The preparation method of urea formaldehyde glue | |
| CN104762026B (en) | Multi-plywood Lauxite filler and preparation method thereof | |
| CN106272849B (en) | The method that Eucalyptus birch composite floor board is produced using high temperature resistant composite urea formaldehyde resin | |
| CN106239646A (en) | Use the method that moistureproof composite urea formaldehyde resin produces full Eucalyptus solid wooden compound floor | |
| CN103540283A (en) | Urea-formaldehyde glue adhesive and preparation method thereof | |
| CN103465339A (en) | Production method of high-strength formaldehyde-free environmentally friendly fiberboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 530300 the Guangxi Zhuang Autonomous Region Hengxian Heng Zhou Zhen Cha Jiang Road No. 121 Patentee after: GUANGXI NANNING LVYUAN BEILIN WOOD INDUSTRY CO.,LTD. Address before: 530104 the Guangxi Zhuang Autonomous Region Nanning Yilin Industrial Zone Chengnan Industrial Park (Pinglu bridge) Patentee before: GUANGXI NANNING LVYUAN BEILIN WOOD INDUSTRY CO.,LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200930 Address after: 530300 the Guangxi Zhuang Autonomous Region Nanning Hengxian City Heng Zhou Zhen Cha Jiang Road No. 121 Patentee after: Mo Mingxin Address before: 121 chajiang Road, Hengzhou Town, Hengxian County Patentee before: GUANGXI NANNING LVYUAN BEILIN WOOD INDUSTRY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |