CN104343346B - A kind of novel white poplar wood door structure and preparation method thereof - Google Patents
A kind of novel white poplar wood door structure and preparation method thereof Download PDFInfo
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- CN104343346B CN104343346B CN201410577829.8A CN201410577829A CN104343346B CN 104343346 B CN104343346 B CN 104343346B CN 201410577829 A CN201410577829 A CN 201410577829A CN 104343346 B CN104343346 B CN 104343346B
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Abstract
The invention provides a kind of preparation method of novel white poplar Solid Door, described method adopts pours into a mould the foaming thermal-insulating that modified phenolic foam forms in door core crack, the layer of structure of door is changed, the surperficial use woodcare paint of described Solid Door; The structure of described Solid Door is modified phenolic foam layer, reinforcing bar rack-layer, poplar layer and aqueous wooden ware enamelled coating from the inside to the outside successively. The present invention, for actual process, has opened the historic environmental protection new situation, and has reached zero release, zero pollution of organic solvent and heavy metal.
Description
Technical field
The invention belongs in construction and decoration industry, be specifically related to a kind of modified phenolic foaming skill that adoptsArt manufacture fire-retardant, energy-conservation, quiet, environmental protection white poplar Solid Door, can be used for various antitheft doors, inThe upgrading and transformation of the Solid Door such as external door, luxurious door and applying.
Technical background
In recent years, along with Global Forests structure progressively changes, protection wildwood, development artificial forestInexorable trend, in the large Xiaoxinanlin Mountains of the Northeast of China and the vast stretch of wooded country on Changbai Mountain, littleYe Yang (white poplar, poplar) BolsamPoplar is the extensive seeds of fast raw high yield in Salicaceae.Its performance is that texture is straight, structure is thin, material evenly light and soft, drying shrinkage is little, but because white poplar is uprightSpend low, easy distortion, add and easily fluff man-hour, limited its application: poplar is only locatedIn manufacturing paper pulp, packaging wooden case, daily use Sundry goods and glued board etc.
Along with the scarcity of wildwood resource, excavate the application of the poplar in artificial forest and compeled at eyebrowEyelash, doing solid wood furniture and class has become the core of wooden industry in-depth industrial reform. In Solid DoorIn production process, must fill insulant material between tow sides door-plate carry out heat insulation, existingIn technology, adopt inflammable polyurethane (PU) foamed glue bonding honeycomb paper to make a core heat insulation moreFill, but because polyurethane is not fire-retardant, and give out poison gas in the time of burning, at outlet portalIn ban use of; Therefore the substitute of developing poisonous polyurethane is imperative.
In the past few years newly constructed house construction area in China town and country is nearly more than 2,000,000,000 square metres, classDemand well imagines, current China become in the world furniture and class the first big producing country,The first big export country and the first consumption big country, the production of Solid Door and outlet cumulative year after year, domesticThe market demand potential is huge. Therefore, the present invention is imperative of far-reaching significance.
Summary of the invention:
The present invention, in order to replace PU foaming to apply in Solid Door, proposes one and uses the resistance of A level insteadThe phenolic foam technology of combustion, not only eliminates disaster hidden-trouble and has changed simultaneously the level knot of Solid DoorStructure, has reached adiabatic, heat preservation and energy conservation effects.
The heat-insulating material of phenolic foam is because its thermal conductivity factor is little, thermal resistance efficiency is high, high insulating effect,A filling for door core crack is ideal chose, the outlet that met Solid Door is fire-retardant, energy-conservation,The multi-functional requirement of quiet, environmental protection, have simultaneously phenol-formaldehyde resin modified pouring foaming easily, solidifyThe use value such as speed is fast, room temperature foaming operation is easy, cohere firmly, light specific gravity, cost are low.
Technical scheme provided by the invention is:
The invention provides a kind of preparation method of novel white poplar Solid Door, described method adopts at doorIn core crack, pour into a mould the foaming thermal-insulating that modified phenolic foam forms, the layer of structure of door is sent outChanging, the surperficial use woodcare paint of described Solid Door;
Further, the structure of described Solid Door be successively from the inside to the outside modified phenolic foam layer,Reinforcing bar rack-layer, poplar layer and aqueous wooden ware enamelled coating;
Further, modified phenolic foam is taking phenolic resins as main body, adds curing agent, sends outInfusion, equal infusion, foam modifier etc. are formulated, and the technique that described preparation method comprises is joinedFang You:
1) phenolic resins is synthetic: adopting paraformaldehyde, phenol and melamine is raw material, hydrogen-oxygenChange sodium is catalyst, and polycondensation reaction under 80 DEG C of conditions generates phenol-formaldehyde resin modified, asThe polymer of foaming body;
2) combination of foaming system: wherein curing agent is benzene methanesulfonic acid C7H8O3S, phosphoric acid H3PO4；All infusion and emulsifying agent are Tween 80; Blowing agent is pentane C5H12; Foam modifier is hardResin acid calcium C36H70CaO4White powder or zinc stearate C36H70O4Zn white powder;
3) bi-component organic silicon modified polyurethane water paint: wherein first component is for adopting polyaminoester emulsionFor host, then use organic siliconresin modification, all the other be surfactant, ethylene glycol, glycerine,Aerosil and look essence; Component B is water-based isocyanate; According to modified phenolic foamThe unit weight of body regulates the consumption of component B, and wherein the weight ratio of first and second is 0.3-0.45.
Innovation point of the present invention:
1. the hierarchical structure that changes white poplar timber, reaches fire-retardant, energy-conservation, quiet, the many merits of environmental protectionCan, meet the requirement of Solid Door industry products export standard.
2. foaming synthesizing with phenolic resins: for many years, the phenolic resins of foaming use, multiplex 37%Formalin and phenol be in raw material production process, to produce a large amount of waste water. In the present invention, adoptParaformaldehyde (white powder) replaces formalin, has eliminated the environmental pollution of waste water.
3. the blowing agent that Foaming of phenolic resin is used needs heating (40 DEG C-60 DEG C) more, for preventing solid woodThe contraction distortion of door at this temperature, must develop blowing agent and the curing agent under normal temperature condition.
4. the incrustation coating of white poplar Solid Door, by traditional oiliness Polyester Paint, changes two groups intoThe polyurethane aqueous woodcare paint of part. And water-based look essence, the nonpoisonous and tasteless and low-carbon (LC) of raising door productEnvironmental protection.
By the breakthrough of above 4 technological innovations and key technical problem, make our province aboundresourcesPoplar after " impregnation drying modification " technical finesse, also more advantageously expanded application,For actual process, opened the historic environmental protection new situation, and reached organic solvent andZero of heavy metal discharges, zero pollution.
Brief description of the drawings:
Fig. 1 is the structural representation of common Solid Door in prior art of the present invention;
Fig. 2 is the structural representation of phenolic foam patent white poplar Solid Door of the present invention.
Detailed description of the invention
For achieving the above object, embodiment of the present invention are described as follows:
In the prior art, referring to Fig. 1, in the production of white poplar Solid Door, white poplar Solid DoorThe inside and outside two sides of plate, employing be traditional oiliness Polyester Paint, it is middle that what adopt is that honeycomb paper is sent outBubble glue.
In the present invention, referring to Fig. 2. there is aqueous wooden ware on the inside and outside two sides of white poplar solid wood door plateThe decorative layer of paint, centre is contained steel skeleton and is strengthened, and in door core crack, pours into a mould phenolic foam thermal insulating materialMaterial, makes the layer of structure of door that variation occur. About water paint thickness 0.1mm, steel skeleton andPoplar thickness of slab is that the thickness of 12mm left and right, polyurethane foam glue is 28mm left and right.
The research and development of modified pnenolic aldehyde foam material formula and technique, have improved expansion ratio, give novelQuiet Solid Door brought the market space of performing meritorious deeds never to be obliterated, quiet effect can be passed through three aspectsRealize: the one, material quiet (poplar and phenolic foam); The 2nd, super thick quiet (perfusion changesProperty phenol formaldehyde foam can thicken); The 3rd, structure is quiet, in the Solid Door of above-mentioned seven-layer structure, fillsThe modified phenolic foaming damping material of resonant silencing; With high content of technology, resultant effect is good.
Modified phenolic foam is taking phenolic resins as main body, adds blowing agent, equal infusion, surely steepsAgent, curing agent, surfactant etc. are formulated.
1. phenolic resins is synthetic: adopting paraformaldehyde, phenol and melamine is raw material, and threePoly cyanamid has outstanding anti-flammability, and NaOH is catalyst, and under 80 DEG C of conditions, polycondensation is anti-Should, generate phenol-formaldehyde resin modified, as the polymer of foaming body.
A, raw material:
(1), phenol C6H5OH, colourless or white crystal. In air and under light, become powderRed. 40.6 DEG C of fusing points. Technical grade
(2), paraformaldehyde HO-(CH2O)n-H, n=10-100, low-molecular-weight is white crystalsPowder, fusing point: 120～170 DEG C. Technical grade
(3), NaOH NaOH strong basicity white solid. Technical grade
(4), melamine C3H6N6White powder. Technical grade
B, formula:
| Sequence number | Title | Unit | Quantity | Remarks |
| 1 | Phenol | Kg | 310 | Melt for liquid interpolation |
| 2 | Paraformaldehyde | Kg | 120 | |
| 3 | Melamine | Kg | 5 | |
| 4 | NaOH | Kg | 2 | Be dissolved in 40KG water |
C, compound method:
(1) stainless steel cauldron of 1T is cleaned up, by the benzene having melted in molten phenol pondPhenol 310kg, squeezes in reactor, starts stirring, in the chuck of still, passes into hot water heating extremely60 DEG C, under the condition of 60 revs/min of stirrings, slowly add sodium hydrate aqueous solution, stir on limitLimit adds paraformaldehyde 120Kg and melamine 5Kg, and macromolecule polycondensation reaction is progressively enteredOK;
(2) in reactor, automatically control reaction temperature, be steadily warming up to 80～85 DEG C, make manyPolyformaldehyde, phenol and melamine carry out chain growth equably, and the reaction time is little to 2 1.5Time between;
(3), in course of reaction, in still, gradually present light yellow transparence thick liquid, treeFat viscosity progressively increases, and now strict attentive response heat release, prevents the implode of polymer;
(4) after reaction proceeds to a certain degree, temperature in the kettle is reduced to 70～75 DEG C, and approximately 1.5Within individual hour, carry out post processing, formaldehyde is fully reacted completely, till free aldehyde;
(5) control of reaction end, adopts rotation viscometer or 4# paint cup to measure resinViscosity, controls reaction end; Wherein conventional 4# paint cup recorded viscosity about 30～50 secondsLeft and right;
(6) reactor is lowered the temperature while stirring, slowly cools to after 30～40 DEG C, from still bottom valveIt is for subsequent use that the resin that goalkeeper makes is put into storage.
D, phenol-formaldehyde resin modified quality standard are as follows:
(1) solid content: 50 ± 1%
(2) free phenol :≤1.2%
(3) free aldehyde :≤0.1%
(4) viscosity: 4# paint cup is measured 25 DEG C, 30-50 second
2, the combination of foaming system:
A, raw material:
(1) curing agent:
Benzene methanesulfonic acid C7H8O3S, white needles or Powdered crystallization, soluble in water;
Phosphoric acid H3PO4, colourless viscous liquid.
(2) equal infusion, emulsifying agent:
Tween 80 (polyoxyethylene sorbitan monooleate), C24H44O6, colourless stickyThick liquid.
(3) blowing agent: pentane C5H12, 36.1 DEG C of boiling points, colourless transparent liquid;
(4) foam modifier: calcium stearate C36H70CaO4White powder or zinc stearateC36H70O4Zn white powder
B, formula:
| Sequence number | Title | Unit | Quantity | Remarks |
| 1 | Phenol-formaldehyde resin modified | Kg | 50-60 | First component |
| 2 | Tween 80 | Kg | 2-2.2 | First component |
| 3 | Calcium stearate | Kg | 0.85-0.90 | Component B |
| 4 | Pentane | Kg | 4.50-4.82 | Component B |
| 5 | Benzene methanesulfonic acid | Kg | 3.5-3.7 | Component B |
| 6 | Phosphoric acid | Kg | 2.0-2.1 | Component B |
Dispensing information: A, first, second two components stir respectively at normal temperatures, and first and second liang of components divideBao Zhuan not.
B, this formula can be adjusted by the variations in temperature trace in season.
C, the application percentage of first, second two components is approximately first: second=1:0.5 can pressFoam unit weight is adjusted.
C, compound method:
In phenol-formaldehyde resin modified, add and there is emulsification and all steep after the Tween 80 of function, byIn non-ionic surface active agent, contain hydrophilic and hydrophobic group, can reduce the surface of resin and openPower and make formula in each component be emulsified into homogeneous system, make phenol-formaldehyde resin modified evenly,Foam imperceptibly, form the closed pore system of fine many bubbles and can shorten hardening time.
Blowing agent is the source of the foaming power in foaming, now adopts organic foaming agent, lowThe pentane of boiling point, can implement at normal temperatures frothing function, and can increase expansion ratio effectWell.
Curing agent is selected organic benzene methanesulfonic acid and inorganic phosphoric acid compound use, advantageously promotesCuring reaction between molecular resin, the heat sending in reaction impels blowing agent gasification, emulsificationAfter mixed with resin body swell rapidly, make foaming with solidify start at the same time. Hardening time is short, closesPorosity is high.
Based on above-mentioned theoretical foundation, be made into two component foaming systems: first component is modified phenolicResin and part of auxiliary, the mixture of other auxiliary agents such as component B is blowing agent. When foaming, adoptThe casting equipment (pump) of specialty, is cast in first, second two components in the crack of a core in proportion,The air pressure that room temperature foaming rapid curing is adjusted pump realizes speed and first, second two components poured into a mouldProportioning.
The technical performance of D, phenolic foam:
Thermal conductivity factor≤0.035W/ (mk)
Fire protecting performance: difficult combustion A level
Compressive strength >=0.10Mpa
Dimensional stability≤0.45%
Rate of closed hole >=95%
Unit weight≤25kg/m3
3, white poplar Solid Door surface use woodcare paint and look essence
In order to reach fire-retardant, energy-conservation, quiet, environment protecting, be applicable to room, cubicle,The requirement in cinema, meeting room, saloon bar, library, study, bedroom etc., the table of doorFace except electronics texturing, the top finishing of the high-grade woodcare paint of still needing. The non-environment-friendly type of tradition useOiliness woodcare paint, because containing the organic solvents such as benzene, ketone, ester, a large amount of toxic gases that volatilize,Not only polluted environment but also impaired health, the bi-component organic silicon modification of now using instead is poly-The contrast of ammonia ester water paint and oil paint is as follows:
Polyurethane resin refer in molecular resin, contain carbamate groups-OCONH-Resin general name, provides hydroxyl by low-molecular-weight polyalcohol, provides isocyanates by isocyanatesBase-NCO, reaction is produced carbamate group through the crosslinked macromolecular compound, macromolecule of formingThe polyaminoester emulsion of thing is important host, then uses organic siliconresin modification, makes paint film property moreAdd firm wear-resisting, damage resistant, hardness high, water-fast weather-proof, coating surface is plentiful.First component: mix formula under normal temperature as follows, see the following form:
Component B: special import curing agent (water-based isocyanate)
According to the dry side of the kind of door (indoor and outdoor is used), serviceability temperature, spraying coating process lacquer paintingThe factors such as formula are capable of regulating formula and the two component usage ratios of first, second at any time, first: second=0.3-0.45,Regulate the consumption of component B according to the unit weight of foams, matching while using, allows to use in 8 hoursComplete.
Aqueous woodware paint needs to add in right amount the water-based look essence of special manufacture in the application of coloured classMix colours. As red sandalwood look class need be with red, yellow, black color matching.
The formula of homemade special color essence (colouring agent):
| Sequence number | Title | Unit | Weight | Remarks |
| 1 | Ethyl cellulose | Kg | 2-2.5 | |
| 2 | Organic dyestuff | Kg | 3-3.8 | Red, yellow, white, blue, black |
| 3 | Alcohols solvent | Kg | 43-45 | Methyl alcohol or ethanol |
| 4 | Water | Kg | 45-49 |
The ethyl cellulose measuring is added in ethanol and stirred, then with horizontal meticulous grindingGrinding machine, grinding to form fineness is that 10 water-based look essences below μ are stand-by.
4, the technological process of production of white poplar Solid Door is as follows:
Former white poplar plank → impregnation drying modification → monolithic saw change the shaping of material → thicknesser →Splicing adhesive jigsaw → cut-to-size saw sawing sheet → abrasive finishing machine abrasive finishing → electronic engraving → steel skeleton takes up →Cast phenol formaldehyde foam → foam normal temperature cure edge sealing → aqueous woodware paint spraying → dry arrangement →Check and accept → packaging of finished product
Wherein step impregnation drying modification technology is prior art.
In sum, the present invention is by above scientific formula, production technology, the operation side makingThe unified of method and special equipment coordinates, and the employing modified phenolic foaming technique of developing is made resistanceCombustion, energy-conservation, quiet, environmental protection poplar Solid Door, now form, research and development, producing and sellingProduction chain, be inventor through repetition test many times and the accumulation of practical experience for many years.This invention is mainly applicable to manufacture and the high-grade solid wood of white poplar solid wood industry (and other timber)Maximization, the automation of door industry, the production line of serialization, and can make an industry produce to stride into low-carbon (LC)Environmental protection, nontoxic smokeless, insulating energy-saving, fire-retardant quiet emerging epoch. Promote economy globalizationThe historical progress of changing.
Claims (7)
1. a preparation method for novel white poplar Solid Door, is characterized in that, described method adoptsIn door core crack, pour into a mould the foaming thermal-insulating that modified phenolic foam forms, make the structure sheaf of doorInferior changing, the surperficial use woodcare paint of described Solid Door;
Described modified phenolic foam is taking phenolic resins as main body, add curing agent, blowing agent,All infusion, foam modifier are formulated, and the preparation method of described modified phenolic foam comprisesTechnical recipe has:
1) phenolic resins is synthetic: adopting paraformaldehyde, phenol and melamine is raw material, hydrogenSodium oxide molybdena is catalyst, and polycondensation reaction under 80 DEG C of conditions generates phenol-formaldehyde resin modified, asThe polymer of foaming body;
2) combination of foaming system: wherein curing agent is benzene methanesulfonic acid C7H8O3S, phosphoric acid H3PO4；
All infusion and emulsifying agent are Tween 80; Blowing agent is pentane C5H12; Foam modifier isCalcium stearate C36H70CaO4White powder or zinc stearate C36H70O4Zn white powder;
3) bi-component organic silicon modified polyurethane water paint: wherein first component is for adopting polyurethane breastLiquid is host, then uses organic siliconresin modification, and all the other are surfactant, ethylene glycol, sweetOil, aerosil and look essence; Component B is water-based isocyanate; According to modified phenolicThe unit weight of foams regulates the consumption of component B, and wherein the weight ratio of first and second is 0.3-0.45.
2. preparation method according to claim 1, is characterized in that, described Solid DoorStructure is modified phenolic foam layer, reinforcing bar rack-layer, poplar layer and water-based from the inside to the outside successivelyWoodenware enamelled coating.
3. preparation method according to claim 1, is characterized in that, described phenol, manyThe quality proportioning of polyformaldehyde, melamine and NaOH is 310Kg:120Kg:5Kg:2Kg.
4. preparation method according to claim 3, is characterized in that, the system of phenolic resinsStandby step is as follows:
(1) stainless steel cauldron of 1T is cleaned up, by the benzene having melted in molten phenol pondPhenol 310kg, squeezes in reactor, starts stirring, in the chuck of still, passes into hot water heating extremely60 DEG C, under the condition of 60 revs/min of stirrings, slowly add sodium hydrate aqueous solution, stir on limitLimit adds paraformaldehyde 120Kg and melamine 5Kg, and macromolecule polycondensation reaction is progressively enteredOK;
(2) in reactor, automatically control reaction temperature, be steadily warming up to 80-85 DEG C, make manyPolyformaldehyde, phenol and melamine carry out chain growth equably, and the reaction time is little to 2 1.5Time between;
(3), in course of reaction, in still, gradually present light yellow transparence thick liquid, resinViscosity progressively increases, and now strict attentive response heat release, prevents the implode of polymer;
(4) after reaction proceeds to a certain degree, temperature in the kettle is reduced to 70-75 DEG C, 1.5Hour carry out post processing, formaldehyde is fully reacted completely, till free aldehyde;
(5) control of reaction end, adopts rotation viscometer or 4# paint cup to measure resin stickyDegree, controls reaction end; Wherein 4# paint cup records viscosity in 30-50 second;
(6) reactor is lowered the temperature while stirring, slowly cools to after 30-40 DEG C, from still bottom valveThe phenolic resins making is put into storage for subsequent use.
5. preparation method according to claim 1, is characterized in that, described foaming systemBe two component foaming systems, wherein first component be in phenol-formaldehyde resin modified, add have emulsification andAll steep the Tween 80 of function, wherein both proportionings are: phenol-formaldehyde resin modified quality is 50-60Kg, Tween 80 is 2-2.2Kg; Component B is to comprise calcium stearate, pentane, benzene first sulphurThe mixture of acid and phosphoric acid, wherein quality proportioning is: calcium stearate 0.85-0.90Kg, pentane4.50-4.82Kg, benzene methanesulfonic acid 3.5-3.7Kg, phosphoric acid 2.0-2.1Kg; First, second two componentsStir respectively at normal temperatures, respectively packaging; Quality proportioning is by the variations in temperature trace in seasonAdjust.
6. preparation method according to claim 5, is characterized in that, first, second two componentsRatio be 1:0.5.
7. preparation method according to claim 1, is characterized in that, wherein said look essenceComprise ethyl cellulose, organic dyestuff, alcohols solvent and water, wherein ethyl cellulose mass partsBe 2-2.5Kg, the mass parts of organic dyestuff is 3-3.8Kg, and alcohols solvent is 43-45Kg, water45-49Kg.
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| CN105315612B (en) * | 2015-11-06 | 2018-10-26 | 芜湖市伟华泡塑有限公司 | A kind of high fire-retardance phenol-formaldehyde resin modified foamed plastics and preparation method thereof |
| CN108301748A (en) * | 2017-12-17 | 2018-07-20 | 天津龙甲特种门窗有限公司 | A kind of thermal resistance door |
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| US6401414B1 (en) * | 1998-01-08 | 2002-06-11 | Acell Holdings Limited | Weather resistant panels |
| CN2576916Y (en) * | 2002-11-08 | 2003-10-01 | 南亚塑胶工业股份有限公司 | Improved fire-retarding door combination structure |
| CN102952460A (en) * | 2011-08-30 | 2013-03-06 | 上海富臣化工有限公司 | Bi-component water-based wooden door varnish |
| CN202788467U (en) * | 2012-09-03 | 2013-03-13 | 谢娟 | Wood-like door |
| CN203161009U (en) * | 2013-03-05 | 2013-08-28 | 广东圣堡罗门业有限公司 | Solid wood door leaf |
| CN103899219A (en) * | 2012-12-25 | 2014-07-02 | 重庆远圣智能锁安全门有限公司 | Wooden door structure |
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2014
- 2014-10-24 CN CN201410577829.8A patent/CN104343346B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6417963A (en) * | 1987-07-14 | 1989-01-20 | L & L Kk | Board material for construction and manufacture thereof |
| US6401414B1 (en) * | 1998-01-08 | 2002-06-11 | Acell Holdings Limited | Weather resistant panels |
| CN2576916Y (en) * | 2002-11-08 | 2003-10-01 | 南亚塑胶工业股份有限公司 | Improved fire-retarding door combination structure |
| CN102952460A (en) * | 2011-08-30 | 2013-03-06 | 上海富臣化工有限公司 | Bi-component water-based wooden door varnish |
| CN202788467U (en) * | 2012-09-03 | 2013-03-13 | 谢娟 | Wood-like door |
| CN103899219A (en) * | 2012-12-25 | 2014-07-02 | 重庆远圣智能锁安全门有限公司 | Wooden door structure |
| CN203161009U (en) * | 2013-03-05 | 2013-08-28 | 广东圣堡罗门业有限公司 | Solid wood door leaf |
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