CN103821236A - Polyurethane heat insulation material and preparation method thereof - Google Patents
Polyurethane heat insulation material and preparation method thereof Download PDFInfo
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- CN103821236A CN103821236A CN201410073455.6A CN201410073455A CN103821236A CN 103821236 A CN103821236 A CN 103821236A CN 201410073455 A CN201410073455 A CN 201410073455A CN 103821236 A CN103821236 A CN 103821236A
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Abstract
The invention provides a polyurethane heat insulation material, which comprises a cement coil, a polyurethane layer and a flame retardant layer, wherein the polyurethane layer is arranged on the cement coil, and the flame retardant layer is arranged on the polyurethane layer. The polyurethane heat insulation material has the advantages that the heat conduction coefficient is low, the heat insulation effect is good, the flame retardant level is high, and the fireproof property is high; in the use process, the cement coil is arranged in the inside, and is directly adhered with a wall, so the adhering strength of a plate and the wall is ensured; the flame retardant layer is positioned on the outside, so even if a fire occurs, the wall surface cannot generate a combustion phenomenon, and the combustion of the flame to the interior is prevented, and the fireproof and flame-retardant functions are effectively realized; the middle part adopts polyurethane, so the heat insulation function is mainly realized.
Description
Technical field
The present invention relates to energy-saving building materials technical field, relate in particular to a kind of polyurethane heat insulation material and preparation method thereof.
Background technology
Heat insulating material generally refers to that coefficient of thermal conductivity is less than or equal to 0.2 material, in industry and building, adopts good heat preservation technology and material, often can play a multiplier effect.In building, one ton of mineral wool insulating product of every use, can save one ton of oil for 1 year.Heat insulating material can be collected waste heat, steadily discharges in good time, and change of gradient is little, the effectively amount of reducing the wastage, and room temperature can become, Winter protection all can play balanced action.Xin building decorate and old building transforming in, overcome the inadequate natural endowment disadvantages such as cracking of wall surface, dewfall, mouldy, peeling; And safe and reliable and matrix entirety bonding, random good, without cavity, avoid negative blast tear and come off.
At present, the best heat insulating material of performance is polyurethane heat insulation material in the world, hard polyaminoester has that quality is light, coefficient of thermal conductivity is low, good heat resistance, ageing-resistant, easily cohere, burn with other base material and do not produce the excellent properties such as molten drop, but building field is applied also and is had problems.Hard polyurethane foams warming plate self is exposed to very easily burning under thermal source or burning things which may cause a fire disaster, and flame propagation velocity is very fast, and its LOI value is only 19.2%, in air, just can burn.The flame retarded rigid polyurethane foams warming plate of preparing by adding the methods such as fire retardant, although can reach in air from fire from putting out, but when burning, produce a large amount of toxic gases, and cannot stop flame further to spread to the inside, the fire resistance that how to improve energetically polyurethane foam is its difficult problem of further applying in building heat preservation field of restriction.
Summary of the invention
Object provided by the invention is to provide a kind of polyurethane heat insulation material and preparation method thereof, and polyurethane heat insulation material provided by the invention has good fire resistance.
The invention provides a kind of polyurethane heat insulation material, comprise cement coiled material, be arranged on the layer of polyurethane on described cement coiled material and be arranged on the flame-retardant layer on described layer of polyurethane.
Preferably, the Thickness Ratio of described layer of polyurethane and described flame-retardant layer is 1:n, 0 < n≤100.
Preferably, described flame-retardant layer is rock wool layer or glass wool layer.
Preferably, the apparent density of described rock wool layer is 40kg/m
3～200kg/m
3;
The thickness of described rock wool layer is 5mm～200mm.
Preferably, the unit weight of described glass wool layer is 40kg/m
3～200kg/m
3;
The thickness of described glass wool layer is 5mm～200mm.
The preparation method who the invention provides a kind of polyurethane heat insulation material, comprising:
Polyurethane foam material is placed between cement coiled material and fire proofing, foaming, solidify and slaking after, obtain polyurethane heat insulation material.
Preferably, described polyurethane foam material comprises polyalcohol and isocyanates.
Preferably, described polyurethane foam material also comprises one or more in foam stabiliser, catalyzer, blowing agent and fire retardant.
Preferably, the material temperature of described polyurethane foam material is 20 ℃～25 ℃;
The temperature of described foaming is 40 ℃～50 ℃.
Preferably, the described curing time is 5min～30min;
The time of described slaking is 20h～30h.
The invention provides a kind of polyurethane heat insulation material, comprise cement coiled material, be arranged on the layer of polyurethane on described cement coiled material and be arranged on the flame-retardant layer on described layer of polyurethane.Polyurethane heat insulation material provided by the invention had both had that coefficient of thermal conductivity is low, the feature of high insulating effect, had had again the feature that fire-retardant rank is high, fireproof performance is good concurrently.In use, cement coiled material one side is interior for polyurethane heat insulation material provided by the invention, directly bonds with body of wall, because cement coiled material and adhesive mortar have very good compatibility, therefore can ensure the adhesion strength of sheet material and body of wall; Outside, even when breaking out of fire, surface of wall also there will not be combustion phenomena to flame-retardant layer one side, more can stop flame to burn to the inside, thereby has effectively played the effect of fire protection flame retarding; Mid portion is polyurethane, mainly plays insulation effect.The present invention is placed in polyurethane foam material between cement coiled material and fire proofing, foaming, solidify and slaking after, obtain polyurethane heat insulation material.Method provided by the invention is placed in polyurethane foam material between cement coiled material and fire proofing, by one step foaming moulding, makes polyurethane heat insulation material.Method provided by the invention bonds between each layer without use bonding adhesive, and can adjust as required the relative thickness of layer of polyurethane and flame-retardant layer.
Accompanying drawing explanation
The polyurethane heat insulation material structural representation of the one-sided cement coiled material that Fig. 1 provides for the embodiment of the present invention;
The polyurethane heat insulation material structural representation of the bilateral cement coiled material that Fig. 2 provides for the embodiment of the present invention.
The specific embodiment
The preparation method who the invention provides a kind of polyurethane heat insulation material, comprising:
Polyurethane foam material is placed between cement coiled material and fire proofing, foaming, solidify and slaking after, obtain polyurethane heat insulation material.
Method provided by the invention is placed in polyurethane foam material between cement coiled material and fire proofing, by one step foaming moulding, obtains polyurethane heat insulation material.Method provided by the invention is without being used cementing agent to bond to each layer, and method is simple, and the polyurethane heat insulation material obtaining has the heat insulation function of polyurethane and the flame retardant effect of fire proofing concurrently.
The present invention is placed in polyurethane foam material between cement coiled material and fire proofing, foaming, solidify and slaking after, obtain polyurethane heat insulation material.
In the present invention, described polyurethane foam material preferably includes polyalcohol and isocyanates; More preferably also comprise one or more in foam stabiliser, catalyzer, blowing agent and fire retardant.The present invention does not have special restriction to the kind of described polyalcohol, adopts polyalcohol well known to those skilled in the art, and in the present invention, described polyalcohol is preferably PPG and/or PEPA.As adopted the commercial goods of PPG, being specially the trade mark is 4110 PPG, the PPG that the trade mark is 450L, commercially available common polyalcohol or flame retardant polyester polyalcohol.
The present invention does not have special restriction to the kind of described isocyanates and source, adopt isocyanates well known to those skilled in the art, as adopted polyphenyl polymethylene polyisocyanates, concrete, can be the trade mark isocyanates commercial goods that is PM-200.
In the present invention, the mass ratio of described polyalcohol and isocyanates is preferably 100:(180～250), more preferably 100:(195～230), most preferably be 100:(205～215).
In the present invention, described foam stabiliser is preferably organosilicone surfactants, the present invention does not have special restriction to the source of described organosilicone surfactants, adopting organosilicone surfactants well known to those skilled in the art, is the organosilicone surfactants of AK-8801, AK-8803, AK-8805, AK-8806, AK-8808 or AK-8812 as adopted model.
In the present invention, described catalyzer is preferably triethanolamine, diethylenetriamine, N, N-dimethyl triethylene diamine, pentamethyl-diethylenetriamine, N, N-dimethyl cyclohexyl amine, potassium oleate solution, isooctyl acid potassium solution, 2, one or more in 4,6-tri-(dimethylamino methyl) phenol and dibutyl tin laurate; In the present invention, the mass concentration of described potassium oleate solution is preferably 20%～40%, and more preferably 25%～35%, most preferably be 30%; The mass concentration of described isooctyl acid potassium solution is preferably 65%～85%, and more preferably 70%～80%, most preferably be 75%.
In the present invention, described blowing agent is preferably one or more in water, pentane, isopentane, pentamethylene, a fluorine dichloroethanes (HCFC-141b), pentafluoropropane (HFC-245fa); One or more in described fire retardant is preferably methyl-phosphoric acid dimethyl ester, three (2-chloroethyl) phosphate, three (2-chloropropyl) phosphate, bisphenol-A two-(diphenyl) phosphate, expansible graphite, APP, melamine.
In the present invention, the mass ratio of described polyalcohol, foam stabiliser, catalyzer, blowing agent and fire retardant is preferably 100:(1～15): (1～10): (15～40): (10～40), more preferably 100:(2～10): (3～8): (20～35): (20～35), most preferably are 100:(3～5): (3.5～5): (30～33): (25～30).
The present invention does not have special restriction to the preparation method of described polyurethane foam material, and polyalcohol is mixed with isocyanates; In the time that described polyurethane foam material preferably also comprises one or more in foam stabiliser, catalyzer, blowing agent and fire retardant, the preparation method of described polyurethane foam material preferably includes following steps:
One or more in foam stabiliser, catalyzer, blowing agent and fire retardant are mixed with polyalcohol, obtain mixed material;
Described mixed material is mixed with isocyanates, obtain polyurethane foam material.
The present invention preferably mixes one or more in foam stabiliser, catalyzer, blowing agent and fire retardant with polyalcohol, obtain mixed material.The present invention does not have special restriction to one or more temperature of mixing with polyalcohol in described foam stabiliser, catalyzer, blowing agent and fire retardant, at room temperature; The speed that one or more in described foam stabiliser, catalyzer, blowing agent and fire retardant are mixed with polyalcohol is preferably 2500r/min～3500r/min, and more preferably 2700r/min～3300r/min, most preferably is 2900r/min～3100r/min.
Obtain after mixed material, the present invention preferably joins isocyanates in described mixed material, after mixing, obtains polyurethane foam material.In the present invention, the material temperature of described polyurethane foam material is preferably 20 ℃～25 ℃, more preferably 21 ℃～24 ℃, most preferably is 22 ℃～23 ℃.
Obtain after polyurethane foam material, the present invention is placed in described polyurethane foam material between cement coiled material and fire proofing, foams, solidifies and slaking, obtains polyurethane heat insulation material.
The present invention is in order to be beneficial to fixing polyurethane foam material, obtain the figurate polyurethane heat insulation material of tool, preferably described polyurethane foam material is placed in to the mould that sets in advance cement coiled material and fire proofing, foams, solidify and slaking, obtain polyurethane heat insulation material.The present invention does not have special restriction to the parameter such as size, material of described mould, and those skilled in the art can be according to the size designed, designed of required polyurethane heat insulation material, as can preferred dimension the mould that is 320mm × 320mm × 40mm.
The present invention is preferably placed in mould by cement coiled material and fire proofing in advance, then to the polyurethane foam material of pouring technique scheme between cement coiled material and fire proofing into and obtaining, foaming, solidify and slaking after, obtain polyurethane heat insulation material.In the present invention, described cement coiled material preferably includes polymer mortar and glass fiber; The present invention does not have special restriction to the source of described cement coiled material, adopts cement coiled material well known to those skilled in the art, and in the present invention, the thickness of described cement coiled material is preferably 0.5mm～1mm.In an embodiment of the present invention, described cement coiled material can adopt Changhai, Changzhou glass Co., Ltd cement coiled material that produce, that model is P350.
The present invention does not have special restriction to the kind of described fire proofing and source, adopts fire proofing well known to those skilled in the art.The present invention, in order to obtain the sheet material of polyurethane heat insulation material, preferably adopts flame-retardant board, concrete, and fire proofing is preferably A level fire proofing, concrete, and described fire proofing is preferably rock wool and/or glass wool; Described flame-retardant board is preferably rock cotton board and/or block of glass wool.In the present invention, the apparent density of described rock wool is preferably 40kg/m
3～200kg/m
3, more preferably 50kg/m
3～150kg/m
3, most preferably be 60kg/m
3～120kg/m
3; The thickness of described rock wool is preferably 5mm～200mm, and more preferably 10mm～180mm, most preferably is 20mm～150mm; The unit weight of described glass wool is 40kg/m
3～200kg/m
3, more preferably 50kg/m
3～150kg/m
3, most preferably be 60kg/m
3～120kg/m
3; The thickness of described glass wool is 5mm～200mm, and more preferably 10mm～180mm, most preferably is 20mm～150mm.
The present invention, polyurethane foam material is poured into before mould, is preferably arranged at described cement coiled material and fire proofing in mould, carries out preheating.In the present invention, in described cement coiled material is arranged at respectively with fire proofing the both sides that described mould is relative, between described cement coiled material and fire proofing, leave space, for holding the polyurethane foam material of pouring into.In the present invention, the temperature of described preheating is preferably 40 ℃～55 ℃, more preferably 45 ℃～50 ℃; The time of described preheating is preferably 50min～80min, more preferably 60min～70min.
Complete after described mould and die preheating, the present invention pours described polyurethane foam material in mould into, foams, solidifies and slaking, obtains polyurethane heat insulation material.Those skilled in the art can arrange the distance between cement coiled material and fire proofing in mould as required, to control the thickness of layer of polyurethane.In the present invention, the Thickness Ratio of described layer of polyurethane and described fire proofing layer is preferably 1:n, and 0 < n≤100 are preferred, and 0.5≤n≤50 also can be preferably 1≤n≤20; Those skilled in the art can arrange arbitrarily as required within the scope of aforementioned proportion, and the present invention does not do special regulation.
The present invention does not have special restriction to the method for described foaming, adopts the technical scheme of foaming well known to those skilled in the art.In the present invention, the material temperature of the polyurethane foam material of described foaming is preferably 20 ℃～25 ℃, more preferably 21 ℃～24 ℃; The temperature of described foaming is preferably 40 ℃～50 ℃, more preferably 42 ℃～48 ℃; The described curing time is preferably 5min～30min, more preferably 10min～25min; Described curing temperature is preferably 40 ℃～50 ℃, more preferably 42 ℃～48 ℃.The present invention preferably proceeds to solidify under the condition of above-mentioned blowing temperature, without changing temperature again.
Complete after described solidifying, the present invention, by the product demoulding after solidifying, then carries out slaking, obtains polyurethane heat insulation material.In the present invention, the temperature of described slaking is preferably 20 ℃～40 ℃, more preferably 25 ℃～35 ℃; The time of described slaking is preferably 20h～30h, more preferably 22h～25h.
The preparation method of polyurethane heat insulation material provided by the invention, by polyurethane foam one-shot forming, obtains both having fire retardation, has again insulation effect, and can also have very good compatibility with adhesive mortar, has ensured the adhesion strength of sheet material and body of wall.
The invention provides a kind of polyurethane heat insulation material, comprise cement coiled material, be arranged on the layer of polyurethane on described cement coiled material and be arranged on the flame-retardant layer on described layer of polyurethane.
Polyurethane heat insulation material provided by the invention comprises cement coiled material, and described cement coiled material is consistent with the cement coiled material described in technique scheme, does not repeat them here.
Polyurethane heat insulation material provided by the invention comprises the layer of polyurethane being arranged on described cement coiled material, described layer of polyurethane by polyurethane foam material described in technique scheme through foaming, solidify and slaking after, obtain, described in the thickness of described layer of polyurethane and technique scheme, the consistency of thickness of layer of polyurethane, does not repeat them here.
Polyurethane heat insulation material provided by the invention comprises the flame-retardant layer being arranged on described layer of polyurethane, and described flame-retardant layer is obtained by fire proofing described in technique scheme, and described fire proofing is consistent with fire proofing described in technique scheme, does not repeat them here.
Polyurethane heat insulation material provided by the invention preferably also comprises the cement coiled material being arranged on described flame-retardant layer, obtains the polyurethane heat insulation material of bilateral cement coiled material.In the present invention, the parameter of both sides cement coiled material can be identical, also can be different, and the present invention does not do special restriction to this.
Referring to Fig. 1, the polyurethane heat insulation material structural representation of the one-sided cement coiled material that Fig. 1 provides for the embodiment of the present invention, wherein, 1 is cement coiled material, and 2 is layer of polyurethane, and 3 is flame-retardant layer;
Referring to Fig. 2, the polyurethane heat insulation material structural representation of the bilateral cement coiled material that Fig. 2 provides for the embodiment of the present invention, wherein, 11 is the first cement coiled material, and 12 is the second cement coiled material, and 2 is layer of polyurethane, and 3 is flame-retardant layer.
Polyurethane heat insulation material provided by the invention is in the process using, and cement coiled material one side is interior, and direct and body of wall bonds, and flame-retardant layer outside.In the present invention, because cement coiled material and adhesive mortar have very good compatibility, therefore can ensure the adhesion strength of sheet material and body of wall; Outside, even when breaking out of fire, surface of wall also there will not be combustion phenomena to described flame-retardant layer, more can stop flame to burn to the inside, thereby has effectively played the effect of fire protection flame retarding; Mid portion is layer of polyurethane, mainly plays insulation effect.
Polyurethane heat insulation material provided by the invention had both had that coefficient of thermal conductivity is low, the feature of high insulating effect, have advantages of that again fire-retardant rank is high, fireproof performance good, solved current product insulation, the conflicting problem of preventing fires on the market, properties of product are stable, can realize large-scale production and application.And, the Thickness Ratio of described flame-retardant layer and layer of polyurethane can be adjusted according to actual needs in the time producing, can suitably increase the thickness of flame-retardant layer for the high building of fire protection requirement, reduce the thickness of layer of polyurethane, require high building can suitably increase the thickness of layer of polyurethane for insulation, the thickness that reduces flame-retardant layer, polyurethane heat insulation material provided by the invention has very excellent flexibility and elasticity in actual applications.
The preparation method who the invention provides a kind of polyurethane heat insulation material, comprising: polyurethane foam material is placed between cement coiled material and fire proofing, foaming, solidify and slaking after, obtain polyurethane heat insulation material.Method provided by the invention is placed in polyurethane foam material between cement coiled material and fire proofing, by one step foaming moulding, makes polyurethane heat insulation material.Method provided by the invention is without using bonding adhesive to bond between each layer, and the polyurethane heat insulation material obtaining had both had, and coefficient of thermal conductivity is low, the feature of high insulating effect, has had again the feature that fire-retardant rank is high, fireproof performance is good concurrently.In use, cement coiled material one side is interior for polyurethane heat insulation material provided by the invention, directly bonds with body of wall, because cement coiled material and adhesive mortar have very good compatibility, therefore can ensure the adhesion strength of sheet material and body of wall; Outside, even when breaking out of fire, surface of wall also there will not be combustion phenomena to fire proofing one side, more can stop flame to burn to the inside, thereby has effectively played the effect of fire protection flame retarding; Mid portion is polyurethane, mainly plays insulation effect.
In order to further illustrate the present invention, below in conjunction with embodiment, polyurethane heat insulation material provided by the invention and preparation method thereof is described in detail, but they can not be interpreted as to limiting the scope of the present invention.
Embodiment 1
By 70g PPG, 30g PEPA, 2g AK-8801, 2g triethanolamine, 0.2g dibutyl tin laurate, 1.5g2, 4, 6-tri-(dimethylamino methyl) phenol, 0.8g water, 15g tri-(2-chloropropyl) phosphate, 10g methyl-phosphoric acid dimethyl ester and 30g HCFC-141b are at room temperature, with the rotating speed mixed at high speed of 3000r/min evenly after, add wherein 210g poly methylene poly phenyl poly isocyanate, after mixing, the homogeneous material obtaining is poured in molding jig and foamed, die size is 320mm × 320mm × 40mm, mould inner bottom surface is placed cement coiled material in advance, the material mixing is poured on cement coiled material, on material, cover the thick rock cotton board of 20mm, the demoulding after curing 10min, under room temperature, after slaking 24h, obtain the polyurethane heat insulation material of one side cement coiled material, wherein the thickness of polyurethane is 20mm.
The present invention detects the heat-insulating property of the polyurethane heat insulation material obtaining, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example;
The present invention detects the mechanical property of the polyurethane heat insulation material obtaining, and result is as shown in table 2, and table 2 is the mechanical experimental results that the embodiment of the present invention 1,17 and comparative example 5～6 obtain.
By 70g PPG, 30g PEPA, 2g AK-8803, 2g triethanolamine, 0.2g dibutyl tin laurate, 1.5g2, 4, 6-tri-(dimethylamino methyl) phenol, 0.8g water, 15g tri-(2-chloropropyl) phosphate, 10g methyl-phosphoric acid dimethyl ester and 30g HCFC-141b are at room temperature, with the rotating speed mixed at high speed of 3000r/min evenly after, add wherein 210g poly methylene poly phenyl poly isocyanate, after mixing, the homogeneous material obtaining is poured in molding jig and foamed, die size is 320mm × 320mm × 40mm, mould inner bottom surface sets in advance cement coiled material, top sets in advance the cotton plate of 20mm heavy sheet glass, the material mixing is poured between cement coiled material and block of glass wool, to cement coiled material be set on described block of glass wool again, between block of glass wool and cement coiled material, be provided with adhesive, the demoulding after curing 10min, under room temperature after slaking 24h, obtain the composite polyurethane heat insulating material of two-sided cement coiled material.
The composite polyurethane heat insulating material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 3
By 70g PPG, 30g PEPA, 2g AK-8805, 2g triethanolamine, 0.2g dibutyl tin laurate, 1.5g2, 4, 6-tri-(dimethylamino methyl) phenol, 0.8g water, 15g tri-(2-chloropropyl) phosphate, 10g methyl-phosphoric acid dimethyl ester and 30g HCFC-141b are at room temperature, with the rotating speed mixed at high speed of 3000r/min evenly after, add wherein 210g poly methylene poly phenyl poly isocyanate, after mixing, the homogeneous material obtaining is poured in molding jig and foamed, die size is 320mm × 320mm × 40mm, mould inner bottom part is placed cement coiled material in advance, it is thick that mould top sets in advance 5mm, unit weight is 40kg/m
3block of glass wool, homogeneous material is poured between cement coiled material and block of glass wool, solidify the demoulding after 10min, after slaking 24h, obtain polyurethane heat insulation material at 25 ℃.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 4
Adopt the technical scheme of embodiment 3 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of block of glass wool is 10mm, replaces the triethanolamine in embodiment 3 with diethylenetriamine.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 5
Adopt the technical scheme of embodiment 3 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of block of glass wool is 15mm, and in the present embodiment, the consumption of foam stabiliser is 5g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 6
Adopt the technical scheme of embodiment 3 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of block of glass wool is 20mm, and the consumption of the present embodiment catalyzer is 5g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 7
Adopt the technical scheme of embodiment 3 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of block of glass wool is 25mm, and the consumption of blowing agent is 33g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 8
Adopt the technical scheme of embodiment 3 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of block of glass wool is 30mm, and the consumption of fire retardant is 30g, and curing temperature is 35 ℃.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 9
Adopt the technical scheme of embodiment 3 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of block of glass wool is 35mm, and in the present embodiment, the consumption of foam stabiliser is 3g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Comparative example 1
Polyalcohol 70g, PEPA 30g, foam stabiliser 2g, triethanolamine 2g, dibutyl tin laurate 0.2g, 2, 4, 6-tri-(dimethylamino methyl) phenol 1.5g, water 0.8g, three (2-chloropropyl) phosphate 15g, methyl-phosphoric acid dimethyl ester 10g, HCFC-141b30g, under room temperature 3000r/min mixed at high speed evenly after, add poly methylene poly phenyl poly isocyanate 210g, mix the rear foaming in molding jig (die size is 320*320*40mm) of evenly pouring into, on mould inner side, soffit is all placed cement coiled material, the demoulding after curing 10min, after slaking 24h, mowing becomes required size to be detected.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Comparative example 2
Choosing above-mentioned experiment unit weight is 40kg/m
3block of glass wool, cuts into the test block of 300*300*40mm size to be detected, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 10
Adopt the technical scheme of embodiment 3 to prepare polyurethane heat insulation material, different, the present embodiment adopts the rock cotton board of 5mm to replace the block of glass wool in embodiment 3.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 11
Adopt the technical scheme of embodiment 10 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of rock cotton board is 10mm, and the consumption of foam stabiliser is 4g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 12
Adopt the technical scheme of embodiment 10 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of rock cotton board is 15mm, and the consumption of catalyzer is 4g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 13
Adopt the technical scheme of embodiment 10 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of rock cotton board is 20mm, and the consumption of blowing agent is 32g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 14
Adopt the technical scheme of embodiment 10 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of rock cotton board is 25mm, and the consumption of fire retardant is 28g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.。
Embodiment 15
Adopt the technical scheme of embodiment 10 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of rock cotton board is 30mm, and the consumption of foam stabiliser is 3g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 16
Adopt the technical scheme of embodiment 10 to prepare polyurethane heat insulation material, different, in the present embodiment, the thickness of rock cotton board is 35mm, and the consumption of catalyzer is 4.5g.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Comparative example 3
Polyalcohol 70g, PEPA 30g, foam stabiliser 2g, triethanolamine 2g, dibutyl tin laurate 0.2g, 2, 4, 6-tri-(dimethylamino methyl) phenol 1.5g, water 0.8g, three (2-chloropropyl) phosphate 15g, methyl-phosphoric acid dimethyl ester 10g, HCFC-141b30g, under room temperature 3000r/min mixed at high speed evenly after, add poly methylene poly phenyl poly isocyanate 210g, mix the rear foaming in molding jig (die size is 320*320*40mm) of evenly pouring into, on mould inner side, soffit is all placed cement coiled material, the demoulding after curing 10min, after slaking 24h, mowing becomes required size to be detected.
The polyurethane heat insulation material obtaining is carried out heat-insulating property test by the present invention, and result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
Comparative example 4
Choose above-mentioned experiment rock cotton board, cut into the test block of 300*300*40mm size to be detected, result is as shown in table 1, the heat-insulating property test result of the polyurethane heat insulation material that table 1 obtains for the embodiment of the present invention and comparative example.
The heat-insulating property test result of the polyurethane heat insulation material that table 1 embodiment of the present invention and comparative example obtain
As can be seen from Table 1, polyurethane heat insulation material provided by the invention has higher heat-insulating property, and because skin is flame-retardant layer, even breaking out of fire, surface of wall also there will not be combustion phenomena, more can burn to the inside by fire-retardant flame.
Embodiment 17
Adopt the technical scheme of embodiment 2 to prepare the composite polyurethane heat insulating material of double-layer cement coiled material, different, the flame-retardant layer of the present embodiment is that apparent density is 40kg/m
3rock cotton board, the thickness of polyurethane and rock cotton board is 20mm.
The present invention detects the mechanical property of the heat insulating material obtaining, and result is as shown in table 2, and table 2 is the mechanical experimental results that the embodiment of the present invention 1,17 and comparative example 5～6 obtain.
Comparative example 5～6
Detecting respectively thickness is the polyurethane of 40mm and the compressive strength of rock wool, the polyurethane foam board that polyurethane is polyurethane foam feed liquid foaming in embodiment 1, solidify, obtain after the demoulding, slaking, result is as shown in table 2, and table 2 is the mechanical experimental results that the embodiment of the present invention 1,17 and comparative example 5～6 obtain.
The mechanical experimental results that table 2 embodiment of the present invention 1,17 and comparative example 5～6 obtain
| Test event | Comparative example 5 | Embodiment 1 | Embodiment 17 | Embodiment 6 |
| Thickness | 40mm | Polyurethane: rock wool=20:20mm | Polyurethane: rock wool=20:20mm | 40mm |
| Compressive strength | 0.18Mpa | 0.06Mpa | 0.06Mpa | 0.02Mpa |
As can be seen from Table 2, heat insulating material provided by the invention has overcome the weak defect of independent rock cotton board compressive strength, and the heat insulating material obtaining has more considerable compressive strength, is beneficial to its application.
As seen from the above embodiment, polyurethane heat insulation material provided by the invention had both had that coefficient of thermal conductivity is low, the feature of high insulating effect, had advantages of that again fire-retardant rank is high, fireproof performance good.Polyurethane heat insulation material provided by the invention is in the process using, and cement coiled material one side is interior, and direct and body of wall bonds, and flame-retardant layer outside.In the present invention, because cement coiled material and adhesive mortar have very good compatibility, therefore can ensure the adhesion strength of sheet material and body of wall; Outside, even when breaking out of fire, surface of wall also there will not be combustion phenomena to described flame-retardant layer, more can stop flame to burn to the inside, thereby has effectively played the effect of fire protection flame retarding; Mid portion is layer of polyurethane, mainly plays insulation effect.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a polyurethane heat insulation material, comprises cement coiled material, is arranged on the layer of polyurethane on described cement coiled material and is arranged on the flame-retardant layer on described layer of polyurethane.
2. polyurethane heat insulation material according to claim 1, is characterized in that, the Thickness Ratio of described layer of polyurethane and described flame-retardant layer is 1:n, 0 < n≤100.
3. polyurethane heat insulation material according to claim 1, is characterized in that, described flame-retardant layer is rock wool layer or glass wool layer.
4. polyurethane heat insulation material according to claim 1, is characterized in that, the apparent density of described rock wool layer is 40kg/m
3～200kg/m
3;
The thickness of described rock wool layer is 5mm～200mm.
5. polyurethane heat insulation material according to claim 1, is characterized in that, the unit weight of described glass wool layer is 40kg/m
3～200kg/m
3;
The thickness of described glass wool layer is 5mm～200mm.
6. a preparation method for polyurethane heat insulation material, comprising:
Polyurethane foam material is placed between cement coiled material and fire proofing, foaming, solidify and slaking after, obtain polyurethane heat insulation material.
7. preparation method according to claim 6, is characterized in that, described polyurethane foam material comprises polyalcohol and isocyanates.
8. preparation method according to claim 7, is characterized in that, described polyurethane foam material also comprises one or more in foam stabiliser, catalyzer, blowing agent and fire retardant.
9. preparation method according to claim 6, is characterized in that, the material temperature of described polyurethane foam material is 20 ℃～25 ℃;
The temperature of described foaming is 40 ℃～50 ℃.
10. preparation method according to claim 7, is characterized in that, the described curing time is 5min～30min;
The time of described slaking is 20h～30h.
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