CN104343346A - Novel poplar wood door structure and preparation method thereof - Google Patents
Novel poplar wood door structure and preparation method thereof Download PDFInfo
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- CN104343346A CN104343346A CN201410577829.8A CN201410577829A CN104343346A CN 104343346 A CN104343346 A CN 104343346A CN 201410577829 A CN201410577829 A CN 201410577829A CN 104343346 A CN104343346 A CN 104343346A
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Abstract
The invention provides a preparation method of a novel poplar wood door. The method is characterized in that foaming heat insulating material formed by modified phenolic aldehyde foam is poured in the cracks of a door core, so that the structural layer of the door is changed; water-based wood lacquer is painted on the surface of the wood door; the wood door structurally comprises a modified phenolic aldehyde foam layer, a steel frame layer, a poplar wood layer and a water-based wood lacquer layer in sequence from the inside to the outside. When being applied to real process, a historic environment-friendly new situation is started, and zero emission and zero pollution of organic solvent and heavy metal can be achieved.
Description
Technical field
The invention belongs in building finishing industry, be specifically related to a kind of modified phenolic foaming technique that adopts and manufacture fire-retardant, energy-conservation, quiet, environmental protection white poplar Solid Door, can be used for the upgrading and transformation of the Solid Door such as various security door, inner-outer door, luxurious door and apply.
Technical background
In recent years; along with Global Forests structure progressively changes, protection wildwood, development artificial forest have been inexorable trend, in the large Xiaoxinanlin Mountains of the Northeast of China and the vast stretch of wooded country on Changbai Mountain; populus simonii (white poplar, poplar) Bolsam Poplar is the extensive seeds of fast raw high yield in Salicaceae.Its performance is that texture is straight, structure is thin, uniform in material is light and soft, drying shrinkage is little, but due to low, the easy distortion of poplar intensity, add and easily fluff man-hour, limit its application: poplar is only positioned to manufacture paper pulp, packaging wooden case, daily use Sundry goods and veneer etc.
Along with the scarcity of wildwood resource, the application of excavating the poplar in artificial forest is extremely urgent, does the core that solid wood furniture and class have become wooden industry in-depth industrial reform.In the manufacturing process of Solid Door, must carry out heat insulation by fill insulant material between tow sides door-plate, adopt inflammable polyurethane (PU) foamed glue bonding honeycomb paper to do the heat insulation filling of a core in the prior art more, but because polyurethane is not fire-retardant, and give out poison gas when burning, prohibit the use in outlet portal; Therefore the substitute developing poisonous polyurethane is imperative.
In the past few years nearly more than 2,000,000,000 square metres of China town and country newly constructed house building area, the demand of class is well imagined, current China has become furniture and class first big producing country, the first big export country and the first consumption big country in the world, the production of Solid Door and outlet cumulative year after year, domestic market demand has a high potential.Therefore, the present invention is imperative of far-reaching significance.
Summary of the invention:
The present invention applies in Solid Door to replace PU to foam, and proposes a kind ofly to use the fire-retardant phenolic foam technology of A level instead, not only eliminates the hierarchical structure that disaster hidden-trouble changes Solid Door simultaneously, reaches thermal insulation, heat preservation and energy conservation effects.
The thermal insulation material of phenolic foam is because its coefficient of thermal conductivity is little, thermal resistance efficiency is high, high insulating effect, filling for door core crack is ideal chose, the outlet meeting Solid Door is fire-retardant, energy-conservation, quiet, the multi-functional requirement of environmental protection, has the use value such as phenol-formaldehyde resin modified pouring foaming is easy, curing rate fast, room temperature foaming operation is easy, cohere firmly, light specific gravity, cost are low simultaneously.
Technical scheme provided by the invention is:
The invention provides a kind of preparation method of novel white poplar Solid Door, described method adopts the foaming thermal-insulating poured into a mould modified phenolic foam and formed in door core crack, the layer of structure of door is changed, the surperficial use woodcare paint of described Solid Door;
Further, the structure of described Solid Door is modified phenolic foam layer, reinforcing bar rack-layer, white poplar timber layer and aqueous wooden ware enamelled coating from the inside to the outside successively;
Further, modified phenolic foam is based on phenolic resins, and add curing compound, blowing agent, all infusion, foam modifier etc. are formulated, the technical recipe that described preparation method comprises has:
1) synthesis of phenolic resins: adopt paraformaldehyde, phenol and melamine to be raw material, NaOH is catalyzer, polycondensation reaction under 80 DEG C of conditions, generates phenol-formaldehyde resin modified, as the polymer of foaming body;
2) combination of foaming system: wherein curing compound is benzene methanesulfonic acid C
7h
8o
3s, phosphoric acid H
3pO
4; Equal infusion and emulsifier are Tween 80; Blowing agent is pentane C
5h
12; Foam modifier is calcium stearate C
36h
70caO
4white powder or zinc stearate C
36h
70o
4zn white powder;
3) bi-component organic silicon modified polyurethane water paint: wherein first component is for adopting polyaminoester emulsion to be host, then uses organic siliconresin modification, all the other are surfactant, ethylene glycol, glycerine, aerosil and look essence; Component B is water-based isocyanate; Regulate the consumption of component B according to the unit weight of modified phenolic foam body, wherein the weight ratio of first and second is 0.3-0.45.
Innovation point of the present invention:
1. change the hierarchical structure of white poplar timber, reach fire-retardant, energy-conservation, quiet, environment protection multifunctional, meet the requirement of Solid Door industry products export standard.
2. the synthesis of foaming phenolic resins: for many years, the phenolic resins of foaming, the formalin of multiplex 37% and phenol are produce a large amount of waste water in raw material manufacturing process.Adopt paraformaldehyde (white powder) to replace formalin in the present invention, eliminate the environment pollution of waste water.
3. the blowing agent of Foaming of phenolic resin needs to heat (40 DEG C-60 DEG C) more, for preventing Solid Door shrinkage strain at such a temperature, must develop the blowing agent under normal temperature condition and curing compound.
4. the incrustation coating of white poplar Solid Door, by traditional oiliness Polyester Paint, changes dual-component polyurethane aqueous woodware paint into.And water-based look essence, improve the nonpoisonous and tasteless and low-carbon environment-friendly of door product.
By the breakthrough of above 4 technological innovations and key technical problem, the resourceful poplar of our province is made also more advantageously to expand application after " impregnation drying modification " technical finesse, for in the process of reality, open the historic environmental protection new situation, and reach zero release, the no pollution of organic solvent and heavy metal.
Accompanying drawing illustrates:
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, see Fig. 1, in the production of white poplar Solid Door, the inside and outside two sides of white poplar solid wood door plate, employing be traditional oiliness Polyester Paint, it is middle that what adopt is honeycomb paper foamed glue.
In the present invention, see Fig. 2. there is the decorative layer of aqueous woodware paint on the inside and outside two sides of white poplar solid wood door plate, middle containing steel frame enhancing, pours into a mould phenolic foam heat insulating material, make the layer of structure of door there occurs change in door core crack.Water paint thickness about 0.1mm, steel frame and poplar thickness of slab are about 12mm, the thickness of polyurethane foam glue is about 28mm.
The research and development of modified pnenolic aldehyde foam material formula and technique, improve expansion ratio, bring the market space of performing meritorious deeds never to be obliterated to novel quiet Solid Door, quiet effect realizes by three aspects: one is material quiet (poplar and phenolic foam); Two is super thick quiet (perfusion modified phenolic foam can thicken); Three is that structure is quiet, is filled with the modified phenolic foaming damping material of resonant silencing in the Solid Door of above-mentioned seven-layer structure; With high content of technology, resultant effect is good.
Modified phenolic foam is based on phenolic resins, and it is formulated to add blowing agent, all infusion, foam stabilizer, curing compound, surfactant etc.
1. the synthesis of phenolic resins: adopt paraformaldehyde, phenol and melamine to be raw material, melamine has outstanding anti-flammability, and NaOH is catalyzer, polycondensation reaction under 80 DEG C of conditions, generates phenol-formaldehyde resin modified, as the polymer of foaming body.
A, raw material:
(1), phenol C
6h
5oH, colourless or white crystal.Become pink in atmosphere and under light.Fusing point 40.6 DEG C.Technical grade
(2), paraformaldehyde HO-(CH2O)
n-H, n=10-100, low-molecular-weight is white crystalline powder, fusing point: 120 ~ 170 DEG C.Technical grade
(3), NaOH NaOH strong basicity white solid.Technical grade
(4), melamine C
3h
6n
6white powder.Technical grade
B, formula:
| Sequence number | Title | Unit | Quantity | Remarks |
| 1 | Phenol | Kg | 310 | Melt for liquid adds |
| 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 phenol 310kg melted in molten phenol pond, squeeze in reactor, start stirring, in the chuck of still, pass into hot water heating to 60 DEG C, under 60 revs/min of conditions stirred, slowly add sodium hydrate aqueous solution, add paraformaldehyde 120Kg and melamine 5Kg while stirring, macromolecule polycondensation reaction is progressively carried out;
(2) automatically control reaction temperature in a kettle., be steadily warming up to 80 ~ 85 DEG C, make paraformaldehyde, phenol and melamine carry out chain growth equably, the reaction time is between 1.5 to 2 hours;
(3) in course of reaction, gradually present light yellow clear shape thick liquid in still, resin viscosity progressively increases, now rigorous concentration exothermic heat of reaction, prevents the implode of polymer;
(4) reaction proceeds to a certain degree, and temperature in the kettle is reduced to 70 ~ 75 DEG C, about within 1.5 hours, carries 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 viscosity, controls reaction end; Wherein conventional 4# paint cup records viscosity about about 30 ~ 50 seconds;
(6) reactor is lowered the temperature while stirring, after slowly cooling to 30 ~ 40 DEG C, from still bottom valve, the resin made is put into storage for subsequent use.
D, phenol-formaldehyde resin modified quality specifications are as follows:
(1) solid content: 50 ± 1%
(2) free phenol :≤1.2%
(3) free aldehyde :≤0.1%
(4) viscosity: 4# paint cup measures 25 DEG C, 30-50 second
2, the combination of foaming system:
A, raw material:
(1) curing compound:
Benzene methanesulfonic acid C
7h
8o
3s, white needles or Powdered crystallization, soluble in water;
Phosphoric acid H
3pO
4, colourless viscous liquid.
(2) equal infusion, emulsifier:
Tween 80 (polyoxyethylene sorbitan monooleate), C
24h
44o
6, colourless viscous liquid.
(3) blowing agent: pentane C
5h
12, boiling point 36.1 DEG C, colourless transparent liquid;
(4) foam modifier: calcium stearate C
36h
70caO
4white powder or zinc stearate C
36h
70o
4zn 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 component stir respectively at normal temperatures, first and second liang of components are packed respectively.
B, this formula can by the variations in temperature trace adjustment in season.
C, the application percentage of first, second two component is approximately first: second=1:0.5 can adjust by foam unit weight.
C, compound method:
Add the Tween 80 that there is emulsification and all steep function in phenol-formaldehyde resin modified after, owing to containing hydrophilic and hydrophobic group in non-ionic surface active agent, the surface tension of resin can be reduced and make each component in formula be emulsified into homogeneous system, phenol-formaldehyde resin modified is foamed evenly, imperceptibly, forms the closed pore system of fine many bubbles and can hardening time be shortened.
Blowing agent is the source of the blowing power in foaming, now adopts organic foaming agent, lower boiling pentane, can implement frothing function at normal temperatures, and it is respond well to increase expansion ratio.
Curing compound selects organic benzene methanesulfonic acid and inorganic phosphoric acid compound use, and advantageously facilitate the curing reaction between molecular resin, the heat sent in reaction impels blowing agent to gasify, and the mixed with resin body after emulsification swells rapidly, and foaming and solidification are started at the same time.Hardening time is short, and rate of closed hole is high.
Based on above-mentioned theoretical foundation, be made into two component foaming system: first component is phenol-formaldehyde resin modified and part of auxiliary, and component B is the mixture of other auxiliary agents such as blowing agent.Adopt the casting equipment (pump) of specialty during foaming, be cast in the crack of a core in proportion by first, second two component, the air pressure of room temperature foaming rapid curing adjustment pump realizes the speed of cast and the proportioning of first, second two component.
The technical performance of D, phenolic foam:
Coefficient of thermal conductivity≤0.035W/ (mk)
Fireproof 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 the requirement in room, cubicle, cinema, conference room, saloon bar, library, study, bedroom etc., the surface of door except electronics texturing, the top finishing of high-grade woodcare paint of still needing.The oiliness woodcare paint of the non-environment-friendly type of tradition, because containing the organic solvents such as benzene, ketone, ester, the a large amount of toxic gases volatilized, not only pollute environment but also impair health, the bi-component organic silicon modified polyurethane water paint now used instead and the contrast of oil paint as follows:
Polyurethane resin refer in molecular resin containing carbamate groups-OCONH-resin general name, hydroxyl is provided by low-molecular-weight polyalcohol, NCO-NCO is provided by isocyanates, reaction is produced carbamate group and is formed macromolecular compound through crosslinked, the polyaminoester emulsion of polymer is important host, use organic siliconresin modification again, make paint film property more firm wear-resisting, damage resistant, hardness are 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 compound (water-based isocyanate)
According to factor adjustable formula and two component usage ratios of first, second at any time such as the kind (indoor and outdoor is used) of door, the drying modes of serviceability temperature, spraying coating process lacquer painting, first: second=0.3-0.45, the consumption of component B is regulated according to the unit weight of foams, matching while using, allows to be finished in 8 hours.
Aqueous woodware paint need in the application of coloured class the water-based look adding special manufacture in right amount progress greatly row toning.As red sandalwood look class need with red, yellow, black color matching.
The formula of homemade special color essence (colorant):
| 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 |
Added in ethanol by the ethyl cellulose measured and stir, then use horizontal fine grinding machine, grinding to form fineness is that the water-based look essence of 10 below μ is 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 changes material → thicknesser shaping → splicing adhesive jigsaw → cut-to-size saw sawing sheet → abrasive finishing machine abrasive finishing → electronic engraving → steel frame and takes up → pour into a mould phenol formaldehyde foam → foam normal temperature cure edge sealing → aqueous woodware paint spraying → dry arrangement → finished product examination → packaging
Wherein step impregnation drying modification treatment technology is prior art.
In sum, the present invention is coordinated by above the unified of the scientific formula, production technology, method of operating and the special equipment that make, the employing modified phenolic foaming technique developed makes fire-retardant, energy-conservation, quiet, environmental protection poplar Solid Door, now formed, research and development, the production chain produced and sold are inventors through the accumulation of repetition test many times and practical experience for many years.This invention is mainly applicable to the production line of the maximization of the manufacture of white poplar solid wood industry (and other timber) and high-grade Solid Door industry, automation, serialization, and an industry can be made to produce stride into low-carbon environment-friendly, nontoxic smokeless, insulating energy-saving, fire-retardant quiet emerging epoch.Promote the historical progress of economic globalization.
Claims (8)
1. a preparation method for novel white poplar Solid Door, is characterized in that, described method adopts the foaming thermal-insulating poured into a mould modified phenolic foam and formed in door core crack, the layer of structure of door is changed, the surperficial use woodcare paint of described Solid Door.
2. preparation method according to claim 1, is characterized in that, the structure of described Solid Door is modified phenolic foam layer, reinforcing bar rack-layer, white poplar timber layer and aqueous wooden ware enamelled coating from the inside to the outside successively.
3. preparation method according to claim 1, modified phenolic foam is based on phenolic resins, and add curing compound, blowing agent, all infusion, foam modifier etc. are formulated, it is characterized in that, the technical recipe that described preparation method comprises has:
1) synthesis of phenolic resins: adopt paraformaldehyde, phenol and melamine to be raw material, NaOH is catalyzer, polycondensation reaction under 80 DEG C of conditions, generates phenol-formaldehyde resin modified, as the polymer of foaming body;
2) combination of foaming system: wherein curing compound is benzene methanesulfonic acid C
7h
8o
3s, phosphoric acid H
3pO
4;
Equal infusion and emulsifier are Tween 80; Blowing agent is pentane C
5h
12; Foam modifier is calcium stearate C
36h
70caO
4white powder or zinc stearate C
36h
70o
4zn white powder;
3) bi-component organic silicon modified polyurethane water paint: wherein first component is for adopting polyaminoester emulsion to be host, then uses organic siliconresin modification, all the other are surfactant, ethylene glycol, glycerine, aerosil and look essence; Component B is water-based isocyanate; Regulate the consumption of component B according to the unit weight of modified phenolic foam body, wherein the weight ratio of first and second is 0.3-0.45.
4. preparation method according to claim 1, is characterized in that, the quality proportioning of described phenol, paraformaldehyde, melamine and NaOH is 310Kg:120Kg:5Kg:2Kg.
5. preparation method according to claim 4, is characterized in that, the preparation process of phenolic resins is as follows:
(1) stainless steel cauldron of 1T is cleaned up, by the phenol 310kg melted in molten phenol pond, squeeze in reactor, start stirring, in the chuck of still, pass into hot water heating to 60 DEG C, under 60 revs/min of conditions stirred, slowly add sodium hydrate aqueous solution, add paraformaldehyde 120Kg and melamine 5Kg while stirring, macromolecule polycondensation reaction is progressively carried out;
(2) automatically control reaction temperature in a kettle., be steadily warming up to 80-85 DEG C, make paraformaldehyde, phenol and melamine carry out chain growth equably, the reaction time is between 1.5 to 2 hours;
(3) in course of reaction, gradually present light yellow clear shape thick liquid in still, resin viscosity progressively increases, now rigorous concentration exothermic heat of reaction, prevents the implode of polymer;
(4) reaction proceeds to a certain degree, and temperature in the kettle is reduced to 70-75 DEG C, about within 1.5 hours, carries 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 viscosity, controls reaction end; Wherein 4# paint cup records viscosity about about 30-50 second;
(6) reactor is lowered the temperature while stirring, after slowly cooling to 30-40 DEG C, from still bottom valve, the phenolic resins made is put into storage for subsequent use.
6. preparation method according to claim 3, it is characterized in that, described foaming system be two component foaming systems, wherein first component adds the Tween 80 having emulsification and all steep function in phenol-formaldehyde resin modified, wherein both proportionings are: phenol-formaldehyde resin modified quality is 50-60Kg, and Tween 80 is 2-2.2Kg; Component B is the mixture comprising calcium stearate, pentane, benzene methanesulfonic acid and phosphoric acid, and wherein quality proportioning is: calcium stearate 0.85-0.90Kg, pentane 4.50-4.82Kg, benzene methanesulfonic acid 3.5-3.7Kg, phosphoric acid 2.0-2.1 Kg; First, second two component stirs at normal temperatures respectively, packs respectively; Quality proportioning can by the variations in temperature trace adjustment in season.
7. preparation method according to claim 6, is characterized in that, the ratio of first, second two component is 1:0.5.
8. preparation method according to claim 3, is characterized in that, wherein said look spermatophore draws together ethyl cellulose, organic dyestuff, alcohols solvent and water, wherein ethyl cellulose mass parts is 2-2.5Kg, the mass parts of organic dyestuff is 3-3.8Kg, and alcohols solvent is 43-45Kg, and water is 45-49Kg.
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|---|---|---|---|
| CN201410577829.8A CN104343346B (en) | 2014-10-24 | 2014-10-24 | A kind of novel white poplar wood door structure and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410577829.8A CN104343346B (en) | 2014-10-24 | 2014-10-24 | A kind of novel white poplar wood door structure and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104343346A true CN104343346A (en) | 2015-02-11 |
| CN104343346B CN104343346B (en) | 2016-05-04 |
Family
ID=52499737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410577829.8A Expired - Fee Related CN104343346B (en) | 2014-10-24 | 2014-10-24 | A kind of novel white poplar wood door structure and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105315612A (en) * | 2015-11-06 | 2016-02-10 | 芜湖市伟华泡塑有限公司 | High-inflaming-retarding modified phenolic resin foamed plastic 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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| 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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|---|---|---|---|---|
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105315612A (en) * | 2015-11-06 | 2016-02-10 | 芜湖市伟华泡塑有限公司 | High-inflaming-retarding modified phenolic resin foamed plastic 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104343346B (en) | 2016-05-04 |
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