CN1584254A - Polyurethane foaming primary forming thermal insulative wallboard and manufacturing process thereof - Google Patents
Polyurethane foaming primary forming thermal insulative wallboard and manufacturing process thereof Download PDFInfo
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- CN1584254A CN1584254A CN 200410024676 CN200410024676A CN1584254A CN 1584254 A CN1584254 A CN 1584254A CN 200410024676 CN200410024676 CN 200410024676 CN 200410024676 A CN200410024676 A CN 200410024676A CN 1584254 A CN1584254 A CN 1584254A
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Abstract
The present invention relates to a heat-insulating wall plate made up by using polyurethane foaming and one-step forming process and its production process. Said heat-insulating wall plate includes fabric, heat-insulating layer and facing layer, the heat-insulating layer is poured-in-place foamed polyurethane hard foam, and can be cohered together with facing layer by means of foaming process of polyurethane so as to obtain the invented one-step formed heat-insulating wall plate. Besides, said invention also provides techonlogical process and concrete steps for producing said heat-insulating wall plate by using the above-mentioned materials and mould.
Description
Technical field
The present invention relates to a kind of heat-insulation wall plate and manufacture craft thereof, specifically is a kind of polyurethane foam one-shot forming heat-insulation wall plate and manufacture craft thereof.Be used for constructional materials and energy-saving field.
Background technology
To consider in the time of the economic pursuit benefit not sacrifice the natural environment that the mankind depend on for existence, realize that continuable coordinated development has become people's common recognition.Building energy conservation can significantly reduce energy consumption because of it, reduces environment pollution and room temperature effect, has been subjected to the attention of a lot of countries.Therefore External Walls Heating Insulation is subjected to extensive welcome owing to do not take the interior space.Kind surplus existing exterior-wall heat insulation wall board material has reached 30 on the China market is based on materials such as mineral wool, glass wool, rock wool, foamed plastics.The difference of material composition has caused heat conductivility, manufacture craft of heat-insulation wall plate etc. different.The heat-insulation wall plate that coefficient of thermal conductivity is high is unsuitable for energy-conservation demanding application demand.The material that has must form through tens procedure mold pressings, have must be after high-temperature fusion high speed centrifugation or spray draw again through former preparation, complex manufacturing technology.The hard polyaminoester heat insulating material that belongs to the starting stage in China occurs with the RPUF filled board that is connected by cementing agent at present mostly, the reaction speed of cementing agent is very sensitive to the variations in temperature of production site in the plastic foam sandwich structured plate, production site temperature is high more, requires the reaction speed of glue slow more; Production site temperature is low more, requires the reaction speed of glue fast more, and filled board adhesion place easily produces be full of cracks, slit, and the whole seal of heat-insulation wall plate is influenced, has reduced heat insulation effect.A large amount of uses of cementing agent impair operator's physical and mental health, also are unfavorable for environmental protection.Back one class methods are made the flow process complexity, and production efficiency is low.
Find Chinese patent " polyurethane heat insulating wall and construction technology ", publication number: CN 1417437 through literature search to prior art.The patented technology content of existing polyurethane foam heat-preserving wall aspect mostly is basic unit's body of wall greatly and handles → fixing nailing → brushing polyurethane primer → draw longitude and latitude graticule line → coated with hard polyurethane → mortar levelling → binding face tile.These class methods are made complexity of flow process, and production efficiency is low.
Summary of the invention
The present invention is directed to the deficiencies in the prior art and defective, a kind of polyurethane foam one-shot forming heat-insulation wall plate and manufacture craft thereof are provided.This technology is in the making flow process that guarantees to have simplified on the good thermal insulation property basis heat-insulation wall plate, and polyurethane foam one-shot forming heat-insulation wall plate thermal-insulating waterproof is functional, manufacture craft is simple, the cycle is short, reduce cost and the advantage of suitable and various skins.
The present invention is achieved by the following technical solutions, and polyurethane foam one-shot forming heat-insulation wall plate of the present invention comprises fabric, insulation layer, finish coat from inside to outside.Insulation layer is that on-the-spot the notes watered the hard polyurethane foam of foaming, by foaming and finish coat adhesion one-shot forming.Heat-insulation wall plate is by injecting screw and skin is connected and fixed.Need not to use cementing agent in the whole process.
Described facing layer material can be ceramic tile, face brick, plastic plate or composite metal plate etc., and the finish coat shape can be rectangle or rhombus etc.
The manufacture craft of the polyurethane foam one-shot forming heat-insulation wall plate that the present invention is above-mentioned, its processing step is as follows:
A, finish coat is laid in the mould of preheating.
The foaming raw material temperature of b, control hard polyurethane foam according to required foam-filled density and foam volume, is calculated the foaming raw material total amount that needs, and mixes the stirring back in proportion and injects in the mould.
C, on mould, cover one deck fabric, close down and lock mould then.
D, wait to arrive hard polyurethane foam after hardening time die sinking take out product.
Among the above-mentioned steps a, described finish coat is when laying, and the space that keeps a determining deviation between every finish material treats to inject screw after the formed product and skin is fixed.This spacing satisfies the diameter of the screw of penetrating.The foaming raw material temperature is different because of the difference of foaming raw material prescription, is controlled in 25～50 ℃ of scopes.
Among the above-mentioned steps b, the foaming raw material of hard polyurethane foam is decided according to the different application demand, and its main component is in 1: combination polyalcohol, polyisocyanates (MDI) mixed liquor that (0.9～1.5) ratio is mixed.The foaming raw material temperature is controlled at 15-30 ℃, and foam-filled density is controlled at 50～100kg/m
3
Among the above-mentioned steps c, described fabric is kraft or cloth.Be covered with fabric and can avoid insulation layer exposed for a long time outside, reduce hard polyurethane foam, play the effect that prolongs the heat-insulation wall plate useful life because of abrasion causes the ill effect that heat-insulating property reduces and heat-insulation wall plate intensity reduces.
Among the above-mentioned steps d, described hardening time is different because of the difference of foaming raw material prescription and foam-filled density, generally is controlled at the 20-60 branch and plants.
Technology of the present invention can obtain the heat-insulation wall plate of multiple shape, size sample by shape, the size of adjusting foaming mould.
Compared with prior art, the present invention has obvious improvement, has that thermal-insulating waterproof is functional, manufacture craft is simple, the cycle is short, reduces cost and is suitable for and the advantage of various skins:
(1) hard polyurethane foam is a kind of desirable organic substance low temperature heat-barrier material.As the skin heat insulating material have that coefficient of thermal conductivity is little, dimensional stability good, light weight is shockproof, shock resistance, corrosion-resistant, anti-aging, and good water vapor permeation resistance and performance of watertightness, and atmospheric environment do not had any pollution.The application need that is fit to high energy-conservation requirement.
(2) mixed liquor of combination polyalcohol and polyisocyanates has extremely strong adhesion stress in foaming, can bond with metal or any material such as nonmetal.The shear strength test that the heat-insulation wall plate sample is carried out according to GB/T 10007-1988 " rigid foam shear strength test method " shows final sample destruction place all at foam inside and not in foam and finish coat junction, and the stiction force of this explanation rigid foam insulation layer and finish coat is much larger than the intermolecular cohesive strength of foam.Test has proved that further one step foaming moulding heat-insulation wall plate system is compacter, firm, is difficult for producing the crack, and the thermal-insulating waterproof effect is better.
(3) mould molding, accurate dimension.Do not exist RPUF external heat insulating wall surface finish to be difficult to control problem.The heat-insulation wall plate of different size, sample can reach by shape, the size of adjusting foaming mould, can make up arbitrarily.Avoided the foam clout waste that cutting causes to foam in the rigid foam filled board manufacturing process.
(4) need not to draw in the net processes such as ruling, levelling, technological process obtains simplifying, and is suitable for prefabrication, assemblingization degree height, and speed of application is fast.Need not to use cementing agent, so manufacturing process is not subjected to the production site Temperature Influence, reduced manufacturing cost yet.
(5) the heat-insulation wall plate finish coat of differing texture, shape, color can also play the effect of decoration, beautifying constructure outward appearance.
Description of drawings
Fig. 1 embodiment of the invention heat-insulation wall plate cross-sectional view
The specific embodiment
As shown in Figure 1, heat-insulation wall plate of the present invention comprises fabric 1, insulation layer 2, finish coat 3 from inside to outside, and insulation layer 2 is that on-the-spot the notes watered the hard polyurethane foam of foaming, by foaming and finish coat 3 adhesion one-shot formings.Heat-insulation wall plate is connected and fixed by screw 4 and skin.Described facing layer material is ceramic tile, face brick, plastic plate or composite metal plate material.
Content below in conjunction with technology of the present invention provides following embodiment:
Embodiment 1
Earlier the cleaning foaming mould guarantees the bright and clean free from admixture of mould inner wall, with the mould bonding, is close to mould inner wall laying layer of plastic film when avoiding the insulation layer demoulding.Finish coat evenly is layed in the selected foaming mould, keeps certain space, interval between every block of material, this space is good can satisfy used screw diameter.Heating mould to 25 ℃ uses high pressure foaming machine or low pressure foaming machine or manual the stirring, the combination polyalcohol that will mix in 1: 0.9 ratio, and polyisocyanates (MDI) mixed liquor stirs with 3000rpm speed and to inject in the mould after 10 seconds.Foaming raw material injects the back and cover one deck kraft on mould, closes down and lock mould then.Can die sinking take out product after arriving 20 minute hardening time.Insulation layer one hard polyurethane foam in this example-packed density be 50kg/m
3, get final product itself and skin body are fixing with screw.
Embodiment 2:
This embodiment is suitable for small-scale production for manual batch-foamed.Select the foaming mould of 30*40*5cm specification as requested for use.The cleaning mould is close to mould inner wall and is laid layer of plastic film.(facing down) evenly is layed in mold bottom with the 15*5*0.6cm face brick, keeps the space of 2-3mm spacing between every face brick.With water-cycle heating heating mould temperature to 38 ℃, the foaming raw material one that temperature is controlled at 20 ℃ makes up polyalcohol, polyisocyanates (MDI)-in 1: 1.2 ratio plastic cup of falling people, stirred 15 seconds with 1000rpm speed, pour in the mould rapidly after the question response liquid generation milky white,, above mould, cover one deck kraft, close down and lock die cover.Can die sinking take out the heat-insulation wall plate product after arriving 40 minutes hardening times, the packed density of rigid foam reaches 75kg/m in this example
3Inject screw and the well behaved heat-preserving wall of thermal-insulating waterproof is fixed and formed to the skin body along heat-insulation wall plate face brick gap every 10cm distance.
Embodiment 3:
This embodiment is mechanical pouring foaming, and suitable factory is prefabricated in a large number.The cleaning mould is along mould inner wall shop layer plastic sheeting.The Aluminiumplastic composite panel that with length and width is 20*5cm evenly is laid on mold bottom every 2mm.With circulation sleeve pipe heating system heating mould to 50 ℃.The feed tube of pouring foaming machine A, B pump is inserted respectively in combination polyalcohol, polyisocyanates (MDI) charging basket, and foaming machine gun head inserts the die casting mouth.After treating that two pumps work well, the temperature of charge that connection electronic temperature control device is regulated in two charging baskets remains on 20 ℃, after regulating A, B pump electronics measuring pump respectively and will making up polyalcohol, polyisocyanates (MDI) continuously and squeeze into and mix in the foaming machine mixing chamber with 1: 1.5 ratio, foaming machine gun head automatically will abundant mixed material by in the die casting mouth injection mould.Be covered with cloth, close bed die lid and in addition fastening, can the die sinking sampling after 60 minutes.The packed density of rigid foam can reach 100kg/m
3, this kind heat-insulation wall plate compressive strength height.
Claims (9)
1, a kind of polyurethane foam one-shot forming heat-insulation wall plate, comprise fabric (1), insulation layer (2), finish coat (3) from inside to outside, it is characterized in that insulation layer (2) is that on-the-spot the notes watered the hard polyurethane foam of foaming, by foaming and finish coat (3) adhesion one-shot forming.
2, polyurethane foam one-shot forming heat-insulation wall plate according to claim 1 is characterized in that, is connected and fixed by screw (4) and skin.
3, polyurethane foam one-shot forming heat-insulation wall plate according to claim 1 is characterized in that, described facing layer material is ceramic tile, face brick, plastic plate or composite metal plate material.
4, a kind of manufacture craft of polyurethane foam one-shot forming heat-insulation wall plate is characterized in that step is as follows:
A, finish coat is laid in the mould of preheating;
B, control hard polyurethane foam foaming raw material temperature according to required foam-filled density and foam volume, are calculated the foaming raw material total amount that needs, and mix the stirring back in proportion and inject in the mould;
C, on mould, cover one deck fabric, close down and lock mould then;
D, wait to arrive hard polyurethane foam after hardening time die sinking take out product.
5, the manufacture craft of polyurethane foam one-shot forming heat-insulation wall plate according to claim 4, it is characterized in that, among the step a, described finish coat is when laying, the space that keeps a determining deviation between every finish material, treat to inject screw after the formed product and skin is fixed, this spacing satisfies the diameter of the screw of penetrating, and the temperature of mould and die preheating is controlled in 25～50 ℃ of scopes.
6, the manufacture craft of polyurethane foam one-shot forming heat-insulation wall plate according to claim 4, it is characterized in that, among the step b, combination polyalcohol, the polyisocyanates mixed liquor of the foaming raw material main component of hard polyurethane foam for mixing in 1: 0.9～1.5 ratios, the foaming raw material temperature is controlled at 15-30 ℃, and foam-filled density is controlled at 50～100kg/m
3
7, the manufacture craft of polyurethane foam one-shot forming heat-insulation wall plate according to claim 4 is characterized in that, described fabric is kraft or cloth.
8, the manufacture craft of polyurethane foam one-shot forming heat-insulation wall plate according to claim 4 is characterized in that, in the steps d, is controlled at the 20-60 branch described hardening time and plants.
9, the manufacture craft of polyurethane foam one-shot forming heat-insulation wall plate according to claim 4 is characterized in that, obtains the heat-insulation wall plate of multiple shape, size sample by shape, the size of adjusting foaming mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200410024676 CN1584254A (en) | 2004-05-27 | 2004-05-27 | Polyurethane foaming primary forming thermal insulative wallboard and manufacturing process thereof |
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| CN 200410024676 CN1584254A (en) | 2004-05-27 | 2004-05-27 | Polyurethane foaming primary forming thermal insulative wallboard and manufacturing process thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117822B (en) * | 2007-06-22 | 2010-06-09 | 林玲 | Vegetable oil radical polyurethane composite panels and continuous production method |
| CN103934949A (en) * | 2014-04-29 | 2014-07-23 | 滁州澳兴机械科技有限公司 | Novel manufacturing process of flat-plate solar element by adopting in-mold formation of film and polyurethane |
| CN109049930A (en) * | 2018-07-27 | 2018-12-21 | 安徽继宏环保科技有限公司 | A kind of improved environment protection wall decorating plate and preparation method thereof |
| CN109083354A (en) * | 2018-07-27 | 2018-12-25 | 安徽继宏环保科技有限公司 | A kind of environmental-friendly walling dalle and preparation method thereof |
| CN109083350A (en) * | 2018-07-27 | 2018-12-25 | 安徽继宏环保科技有限公司 | A kind of single side environmental-friendly walling dalle and preparation method thereof |
| CN109914729A (en) * | 2019-02-26 | 2019-06-21 | 广州绅琪节能材料有限公司 | A kind of gel polyurethane pottery antifouling waterproof combined heat-insulating integral plate of spar and preparation method thereof |
| CN109930766A (en) * | 2019-02-26 | 2019-06-25 | 广州绅琪节能材料有限公司 | Gel polyurethane pottery spar In-situ reaction integrated plate for heat insulation and preparation method thereof |
| CN109930765A (en) * | 2019-02-26 | 2019-06-25 | 广州绅琪节能材料有限公司 | A kind of gel polyurethane compound thermal-insulating decorative integrated board and preparation method thereof |
| CN109930764A (en) * | 2019-02-26 | 2019-06-25 | 广州绅琪节能材料有限公司 | A kind of gel polyurethane pottery super-hydrophobic combined heat-insulating integral plate of spar and preparation method thereof |
| CN109944405A (en) * | 2019-02-26 | 2019-06-28 | 广州绅琪节能材料有限公司 | A kind of gel polyurethane pottery spar In-situ reaction integrated plate for heat insulation and preparation method thereof |
| CN109972806A (en) * | 2019-02-26 | 2019-07-05 | 广州绅琪节能材料有限公司 | A kind of high-performance gel polyurethane pottery spar In-situ reaction integrated plate for heat insulation and preparation method thereof |
-
2004
- 2004-05-27 CN CN 200410024676 patent/CN1584254A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117822B (en) * | 2007-06-22 | 2010-06-09 | 林玲 | Vegetable oil radical polyurethane composite panels and continuous production method |
| CN103934949A (en) * | 2014-04-29 | 2014-07-23 | 滁州澳兴机械科技有限公司 | Novel manufacturing process of flat-plate solar element by adopting in-mold formation of film and polyurethane |
| CN109049930A (en) * | 2018-07-27 | 2018-12-21 | 安徽继宏环保科技有限公司 | A kind of improved environment protection wall decorating plate and preparation method thereof |
| CN109083354A (en) * | 2018-07-27 | 2018-12-25 | 安徽继宏环保科技有限公司 | A kind of environmental-friendly walling dalle and preparation method thereof |
| CN109083350A (en) * | 2018-07-27 | 2018-12-25 | 安徽继宏环保科技有限公司 | A kind of single side environmental-friendly walling dalle and preparation method thereof |
| CN109914729A (en) * | 2019-02-26 | 2019-06-21 | 广州绅琪节能材料有限公司 | A kind of gel polyurethane pottery antifouling waterproof combined heat-insulating integral plate of spar and preparation method thereof |
| CN109930766A (en) * | 2019-02-26 | 2019-06-25 | 广州绅琪节能材料有限公司 | Gel polyurethane pottery spar In-situ reaction integrated plate for heat insulation and preparation method thereof |
| CN109930765A (en) * | 2019-02-26 | 2019-06-25 | 广州绅琪节能材料有限公司 | A kind of gel polyurethane compound thermal-insulating decorative integrated board and preparation method thereof |
| CN109930764A (en) * | 2019-02-26 | 2019-06-25 | 广州绅琪节能材料有限公司 | A kind of gel polyurethane pottery super-hydrophobic combined heat-insulating integral plate of spar and preparation method thereof |
| CN109944405A (en) * | 2019-02-26 | 2019-06-28 | 广州绅琪节能材料有限公司 | A kind of gel polyurethane pottery spar In-situ reaction integrated plate for heat insulation and preparation method thereof |
| CN109972806A (en) * | 2019-02-26 | 2019-07-05 | 广州绅琪节能材料有限公司 | A kind of high-performance gel polyurethane pottery spar In-situ reaction integrated plate for heat insulation and preparation method thereof |
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