CN105479583A - Production method for producing damp-proof ceiling decorative density board from mulberry branch powder - Google Patents
Production method for producing damp-proof ceiling decorative density board from mulberry branch powder Download PDFInfo
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Abstract
The invention provides a production method for producing a damp-proof ceiling decorative density board from mulberry branch powder. The production method comprises the following steps: mixing the mulberry branch powder and a damp-proof urea formaldehyde resin adhesive and then pressing the mixture into a board, and then laminating the board with melamine impregnated paper or aluminum sesquioxide abrasion-resistant paper at a high temperature; the molding of the plate is implemented by means of triple cold pressing and triple hot pressing as well as twice heat dissipation maintenance; the cold pressing is carried out at a room temperature and under a pressure of 2.5 MPa, while hot pressing is carried out under a pressure of 1.5-2.0MPa; a temperature of the first hot pressing ranges from 130 to 135 DEG C; a temperature of the second hot pressing ranges from 125 to 130 DEG C, while a temperature of the third hot pressing ranges from 120-125 DEG C; the heat dissipation maintenance refers to cooling by means of natural ventilation till the room temperature in a constant temperature room for 3-4h; and laminating the melamine impregnated paper or the aluminum sesquioxide abrasion-resistant paper on the surface of the board is carried out at 150 DEG C and under a pressure of 1.5MPa.
Description
The divisional application that the application is the applying date is " on 08 28th, 2013 ", application number is " 201310380105X ", name is called the patent of invention of " production method of moistureproof decorative ceiling board ".
Technical field
The present invention relates to a kind of production method of wood-based plate, particularly the production method of the wood-based plate for the production of ceiling decoration material of humidity resistance excellence.
Background technology
The ornament materials of current smallpox mainly adopts plasterboard, it be a kind of lightweight, intensity is higher, thinner thickness, easy to process and sound insulation is adiabatic and the construction material of the better performances such as fire prevention, is one of novel light sheet material of current development emphatically.Along with country encourages to produce sawdust, wood shavings, bark, sanding powder, brush wood in the surplus thing of three in production of forestry, timber processing, bamboo processing and Wood-based Panel Production, all kinds of stalks, shuck etc. that crops produce after receiving are raw material production wood-based plate, increasing producer starts to attempt adopting woods, agricultural byproduct produces particieboard, density board, and the price of wood-based plate is more and more esthetically acceptable to the consumers.Therefore the ceiling decoration material adopting wood-based plate to make has progressed into the family of common people.The production method of particieboard and density board adopts adhesive to mix with fiber grain, is then pressed into sheet material.And the Main Ingredients and Appearance of adhesive is Lauxite, one of its raw materials for production are the formaldehyde of the title having " the stealthy killer of human health ".Often producing the adhesive that one cubic metre of particieboard and density board use is 100 ~ 400kg, even if the residual quantity of formaldehyde is 0.05mg/Kg in Lauxite, the formaldehyde that so every cubic metre of wood-based plate is residual is still at more than 5mg.Particieboard and density board poor water resistance, because producing expansive force difference, bow warping is out of shape after moisture absorption, and ceiling is the building structure being the most easily subject to moisture attack, therefore easily play drum, distortion after the ceiling decoration material that the particieboard adopted at present and density board are made makes moist, service life is short.
Summary of the invention
The object of this invention is to provide a kind of production method of density board, waterproof, the humidity resistance of wood-based plate can be improved by production method of the present invention, and can burst size of methanal be reduced, be very suitable for making ceiling decoration material.
Technical scheme of the present invention is: a kind of ramulus mori that utilizes considers the production method of producing moistureproof ceiling decoration density board to be worth doing, it is characterized in that: be mixed with Moisture-proof urea-formaldehyde resin adhesive by ramulus mori bits to be pressed into sheet material, then sheet material overlays with melamine impregnated paper or alundum (Al2O3) abrasion-proof paper high temperature and forms; Plate forming adopts colds pressing for three times and three hot pressing, twice heat radiation health; Described temperature of colding pressing is room temperature, and pressure is 2.5MPa, and hot pressing pressure is 1.5 ~ 2.0MPa; The temperature of first time hot pressing is 130 ~ 135 DEG C; The temperature of second time hot pressing is 125 ~ 130 DEG C, and the temperature of third time hot pressing is 120 ~ 125 DEG C; Described heat radiation health is that thermostatic chamber gravity-flow ventilation is cooled to room temperature, and the time is 3 ~ 4h; Plate surface pastes melamine impregnated paper or alundum (Al2O3) abrasion-proof paper is at 150 DEG C, and pressure is carry out under 1.5Mpa;
Described Moisture-proof urea-formaldehyde resin adhesive raw material and parts by weight comprise:
Lauxite 46;
Polyacrylate dispersion 10;
Dimethyl silicone polymer 0.6;
300 order precipitated calcium carbonates 30;
EVA latex 5;
Described Moisture-proof urea-formaldehyde resin adhesive adopts following method to make: formaldehyde is disposable feeding intake, and urea divides and feeds intake for three times; The production of Lauxite is divided into prepolymerization, polymerization and later stage polymerization three phases, and later stage polymerization adds polyacrylate dispersion, dimethyl silicone polymer and EVA latex later, and add filler obtains moistureproof urea-formaldehyde resin adhesive to stirring reaction completely later; With three-roller type grinder grinding 30min, obtain Moisture-proof urea-formaldehyde resin adhesive.
Described polyacrylate dispersion is Guangzhou Qi Sheng Chemical Co., Ltd. model is the general pure-acrylic emulsion of M-862, it all adopts acrylate to be raw material, form through emulsion polymerisation, there is excellent water resistance and weatherability, as the raw material of adhesive together with Lauxite, the resistance to water of Lauxite can be improved, improve the humidity resistance of adhesive.
Described dimethyl silicone polymer is that Dow Corning Corporation produces, and model is
silicone oil, there is high surfactant, as defoamer and levelling agent in adhesive, improve adhesive to the wetability of base material, strengthen adhesive strength.And due to dimethyl silicone polymer very hydrophobic, the waterproof of adhesive, humidity resistance can be improved.
Precipitated calcium carbonate can dilute the component of adhesive main component, reduces production cost, and because Lauxite component is diluted, the Lauxite that the wood-based plate of unit volume contains reduces, and can reduce burst size of methanal.And precipitated calcium carbonate can increase substantially polymeric material mechanical strength, dimensional stability and heat distortion temperature, the bonding strength improving adhesive and base material is played a key effect.
Described EVA latex is ethyl vinyl acetate ethylene copolymer emulsion, comes from Celanese Corp.'s production trade mark to be
eVA latex.Compared with polyethylene, EVA owing to introducing VAM in strand, thus reduce high-crystallinity, improve pliability, impact resistance, filler intermiscibility and heat seal performance, the sealing of wood-based plate can be improved in the hot pressing production process of wood-based plate, improve waterproof, humidity resistance.
The good effect that the present invention produces:
1. the production of one of the raw material Lauxite of adhesive that the production method of moistureproof decorative ceiling board of the present invention uses adopts and once adds formaldehyde; add the technique of urea for three times; polymerization rate remains steady; avoid the generation of polymerisation gel effect; almost or complete reaction, gained Lauxite residual formaldehyde is low, and the adhesive burst size of methanal thus made is few for formaldehyde monomers; the residual formaldehyde of final wood-based plate is low, is conducive to the health of Protection of consumer.
2. the adhesive that the production method of moistureproof decorative ceiling board of the present invention uses adds polyacrylate dispersion, dimethyl silicone polymer and EVA latex on Lauxite, improve the resistance to water of Lauxite, the adhesive waterproof made, humidity resistance are good, the sealing property of wood-based plate can be improved, make moisture, that moisture is difficult to infiltrate wood-based plate is inner, improve the resistance to water of wood-based plate.
3. the production method of moistureproof decorative ceiling board of the present invention adopt cold pressing for three times, three hot pressing and twice heat radiation craft, at repeatedly cold, hot pressure and radiation processes, can the Form aldehyde release in wood-based plate out, and collect process by extract system, therefore the artificial board formaldehyde residual quantity finally obtained is low, and cold pressing for three times, three hot pressing and twice heat radiation craft make adhesive and fiber fit tighter, seal more comprehensively, the wood-based plate waterproof finally obtained, humidity resistance are better.
Detailed description of the invention
Embodiment 1
The production of Lauxite, comprises the steps: prepolymerisation stage: disposablely in polymerization reaction kettle add formalin, is 2 ~ 2.5, adds the urea of formalin weight 15%, be warming up to 46 DEG C, insulation reaction 60min by formic acid adjust ph.
Polymerization stage: prepolymerisation stage terminates, adds alkali and regulates the pH value of reactant liquor to be 8 ~ 8.5, add the urea of formalin weight 30%, add in 40 ~ 60min, then temperature reaction liquid to 88 ~ 92 DEG C, insulation reaction 90min.
Polymerization later stage: polymerization stage terminates, and adds the urea of formalin weight 30 ~ 40%, adds in 40 ~ 60min, then reduces reaction temperature to 70 ~ 85 DEG C, and reaction 60 ~ 90min, is cooled to room temperature, obtains Lauxite; The Lauxite obtained 46 parts, adds polyacrylate dispersion 10 parts under stirring, dimethyl silicone polymer 0.6 part and EVA latex 5 parts, after being uniformly mixed, add 30 parts of precipitated calcium carbonates, with three-roller type grinder grinding 30min, obtain Moisture-proof urea-formaldehyde resin adhesive.
Embodiment 2
1m
3sawdust adds the Moisture-proof urea-formaldehyde resin adhesive that 150kg embodiment 1 obtains, and stirs with mixer, puts into board mould, and by compressor compresses under normal temperature, pressure is 2.5Mpa; Then hot press is put into, at 130 ~ 135 DEG C, hot pressing under 1.5Mpa; Sheet material is put into thermostatic chamber gravity-flow ventilation cooling 3 ~ 4h, normal temperature compressed with compressor, pressure is 2.5Mpa; Put into hot press, second time hot pressing, temperature is 125 ~ 130 DEG C, and pressure is 1.5Mpa, sheet material is put into thermostatic chamber gravity-flow ventilation cooling 3 ~ 4h; Normal temperature compressed with compressor, pressure is 2.5Mpa; Put into hot press again, third time hot pressing, temperature is 120 ~ 120 DEG C, and pressure is 1.5Mpa; Then be warming up to 150 DEG C, sheet material double face pastes melamine impregnated paper at 1.5Mpa pressure lower surface, and air blast is cooled to room temperature, obtains moistureproof decorative ceiling board.
Embodiment 3
1m
3nut shell particle adds the Moisture-proof urea-formaldehyde resin adhesive that 180kg embodiment 1 obtains, and stirs with mixer, puts into board mould, and by compressor compresses under normal temperature, pressure is 2.5Mpa; Then hot press is put into, at 130 ~ 135 DEG C, hot pressing under 1.8Mpa; Sheet material is put into thermostatic chamber gravity-flow ventilation cooling 3 ~ 4h, normal temperature compressed with compressor, pressure is 2.5Mpa; Put into hot press, second time hot pressing, temperature is 125 ~ 130 DEG C, and pressure is 1.8Mpa, sheet material is put into thermostatic chamber gravity-flow ventilation cooling 3 ~ 4h; Normal temperature compressed with compressor, pressure is 2.5Mpa; Put into hot press again, third time hot pressing, temperature is 120 ~ 120 DEG C, and pressure is 1.8Mpa; Then be warming up to 150 DEG C, sheet material double face pastes alundum (Al2O3) abrasion-proof paper at 1.5Mpa pressure lower surface, and air blast is cooled to room temperature a, obtains moistureproof decorative ceiling board.
Embodiment 4
1m
3ramulus mori bits add the Moisture-proof urea-formaldehyde resin adhesive that 200kg embodiment 1 obtains, and stir, put into board mould with mixer, and by compressor compresses under normal temperature, pressure is 2.5Mpa; Then hot press is put into, at 130 ~ 135 DEG C, hot pressing under 2.0Mpa; Sheet material is put into thermostatic chamber gravity-flow ventilation cooling 3 ~ 4h, normal temperature compressed with compressor, pressure is 2.5Mpa; Put into hot press, second time hot pressing, temperature is 125 ~ 130 DEG C, and pressure is 2.0Mpa, sheet material is put into thermostatic chamber gravity-flow ventilation cooling 3 ~ 4h; Normal temperature compressed with compressor, pressure is 2.5Mpa; Put into hot press again, third time hot pressing, temperature is 120 ~ 120 DEG C, and pressure is 2.0Mpa; Then be warming up to 150 DEG C, sheet material double face pastes melamine impregnated paper at 1.5Mpa pressure lower surface, and air blast is cooled to room temperature, obtains moistureproof decorative ceiling board.
According to GB/T11718-2009 " medium density fibre board (MDF) ", thickness 9 ~ 13mm, carries out performance test to the wood-based plate in embodiment, and every testing result is as shown in the table:
| Project | Burst size of methanal mg/m 3(climate box method) | Internal bond strength/MPa | Humidity resistance (after boiling test internal bond strength)/Mpa | Thickness swelling rate/% |
| Embodiment 1 | 0.41 | - | - | - |
| Embodiment 2 | 0.048 | 0.72 | 0.48 | 1.62 |
| Embodiment 3 | 0.026 | 0.85 | 0.63 | 1.37 |
| Embodiment 4 | 0.012 | 0.97 | 0.81 | 1.11 |
It can be seen from the table, the production method of moistureproof decorative ceiling board of the present invention adopt cold pressing for three times, three hot pressing, the production technology of twice heat radiation health can reduce burst size of methanal, and can improve the humidity resistance of wood-based plate; The wood-based plate adopting method of the present invention to make is suitable for producing ceiling decoration material.
Claims (1)
1. one kind utilizes ramulus mori to consider the production method of producing moistureproof ceiling decoration density board to be worth doing, it is characterized in that: be mixed with Moisture-proof urea-formaldehyde resin adhesive by ramulus mori bits to be pressed into sheet material, then sheet material overlays with melamine impregnated paper or alundum (Al2O3) abrasion-proof paper high temperature and forms; Plate forming adopts colds pressing for three times and three hot pressing, twice heat radiation health; Described temperature of colding pressing is room temperature, and pressure is 2.5MPa, and hot pressing pressure is 1.5 ~ 2.0MPa; The temperature of first time hot pressing is 130 ~ 135 DEG C; The temperature of second time hot pressing is 125 ~ 130 DEG C, and the temperature of third time hot pressing is 120 ~ 125 DEG C; Described heat radiation health is that thermostatic chamber gravity-flow ventilation is cooled to room temperature, and the time is 3 ~ 4h; Plate surface pastes melamine impregnated paper or alundum (Al2O3) abrasion-proof paper is at 150 DEG C, and pressure is carry out under 1.5Mpa;
Described Moisture-proof urea-formaldehyde resin adhesive raw material and parts by weight comprise:
Lauxite 46;
Polyacrylate dispersion 10;
Dimethyl silicone polymer 0.6;
300 order precipitated calcium carbonates 30;
EVA latex 5;
Described Moisture-proof urea-formaldehyde resin adhesive adopts following method to make: formaldehyde is disposable feeding intake, and urea divides and feeds intake for three times; The production of Lauxite is divided into prepolymerization, polymerization and later stage polymerization three phases, and later stage polymerization adds polyacrylate dispersion, dimethyl silicone polymer and EVA latex later, and add filler obtains moistureproof urea-formaldehyde resin adhesive to stirring reaction completely later; With three-roller type grinder grinding 30min, obtain Moisture-proof urea-formaldehyde resin adhesive.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310380105.XA CN103433993B (en) | 2013-08-28 | 2013-08-28 | The production method of moistureproof decorative ceiling board |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310380105.XA Division CN103433993B (en) | 2013-08-28 | 2013-08-28 | The production method of moistureproof decorative ceiling board |
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| CN105479583A true CN105479583A (en) | 2016-04-13 |
Family
ID=49687754
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510459680.8A Pending CN105479583A (en) | 2013-08-28 | 2013-08-28 | Production method for producing damp-proof ceiling decorative density board from mulberry branch powder |
| CN201310380105.XA Active CN103433993B (en) | 2013-08-28 | 2013-08-28 | The production method of moistureproof decorative ceiling board |
| CN201510458492.3A Pending CN105291243A (en) | 2013-08-28 | 2013-08-28 | Production method of dampproof ceiling decoration plate |
| CN201510459679.5A Pending CN105150353A (en) | 2013-08-28 | 2013-08-28 | Production method for damp-proof ceiling decoration density board |
| CN201510458974.9A Withdrawn CN105235047A (en) | 2013-08-28 | 2013-08-28 | Production method for producing damp-proof ceiling decoration density board through saw dust |
| CN201510460870.1A Withdrawn CN105291245A (en) | 2013-08-28 | 2013-08-28 | Production method for producing dampproof ceiling decoration density plate by using nut shell particles |
| CN201510459124.0A Withdrawn CN105291244A (en) | 2013-08-28 | 2013-08-28 | Production method of dampproof ceiling decoration density plate |
Family Applications After (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310380105.XA Active CN103433993B (en) | 2013-08-28 | 2013-08-28 | The production method of moistureproof decorative ceiling board |
| CN201510458492.3A Pending CN105291243A (en) | 2013-08-28 | 2013-08-28 | Production method of dampproof ceiling decoration plate |
| CN201510459679.5A Pending CN105150353A (en) | 2013-08-28 | 2013-08-28 | Production method for damp-proof ceiling decoration density board |
| CN201510458974.9A Withdrawn CN105235047A (en) | 2013-08-28 | 2013-08-28 | Production method for producing damp-proof ceiling decoration density board through saw dust |
| CN201510460870.1A Withdrawn CN105291245A (en) | 2013-08-28 | 2013-08-28 | Production method for producing dampproof ceiling decoration density plate by using nut shell particles |
| CN201510459124.0A Withdrawn CN105291244A (en) | 2013-08-28 | 2013-08-28 | Production method of dampproof ceiling decoration density plate |
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Cited By (2)
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| CN106675472A (en) * | 2016-12-17 | 2017-05-17 | 浦北县建业胶合板有限责任公司 | Urea-formaldehyde resin adhesive and preparation method thereof |
| CN107553683A (en) * | 2017-09-30 | 2018-01-09 | 徐州雅来基桑拿设备有限公司 | A kind of production method of density board |
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| CN105479583A (en) * | 2013-08-28 | 2016-04-13 | 钱秀英 | Production method for producing damp-proof ceiling decorative density board from mulberry branch powder |
| CN104118026B (en) * | 2014-07-23 | 2016-05-04 | 连云港保丽森实业有限公司 | A kind of fire-retardant wheat straw flakeboard of environmental protection inorganic and production method thereof |
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| CN110253811A (en) * | 2019-05-25 | 2019-09-20 | 北京化工大学 | A kind of preparation process of lightweight formaldehyde-free wood-plastic flame-proof sheet material |
| CN111778766A (en) * | 2020-07-30 | 2020-10-16 | 甄镒赫 | Calcium silicate board hot-pressing veneering melamine impregnated paper and manufacturing method thereof |
| CN113752348A (en) * | 2021-04-21 | 2021-12-07 | 上海盈倍工贸有限公司 | Environment-friendly bamboo and wood product surface treatment process |
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|---|---|
| CN103433993B (en) | 2015-11-04 |
| CN105291244A (en) | 2016-02-03 |
| CN105235047A (en) | 2016-01-13 |
| CN105150353A (en) | 2015-12-16 |
| CN103433993A (en) | 2013-12-11 |
| CN105291245A (en) | 2016-02-03 |
| CN105291243A (en) | 2016-02-03 |
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