CN105440254A - Polyurethane foam used in ultra-low temperature - Google Patents
Polyurethane foam used in ultra-low temperature Download PDFInfo
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- CN105440254A CN105440254A CN201410724190.1A CN201410724190A CN105440254A CN 105440254 A CN105440254 A CN 105440254A CN 201410724190 A CN201410724190 A CN 201410724190A CN 105440254 A CN105440254 A CN 105440254A
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- polyether glycol
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Abstract
The present invention belongs to the field of the foam sealant, and in particular relates to polyurethane foam used in an ultra-low temperature. The polyurethane foam is characterized by comprising polyether polyol I, polyether polyol II, mixed polyether polyols III, chlorinated paraffin, tri (chloro isopropyl) phosphate, polyether-modified silicone, a catalyst, isocyanates, ether, and liquefied petroleum gas. A molecular weight of the polyether polyol I is 1000, and functionality of the polyether polyol I is 3; the molecular weight of the polyether polyol II is 600, and the functionality of the polyether polyol II is 2; and the molecular weight of the mixed polyether polyol III is 700, and the functionality of the mixed polyether polyol III is 2.5. According to the polyurethane foam disclosed by the present invention, the dosage of isocyanate is very low but good adhesive properties can also be maintained, the polyurethane foam can be used in the ultra-low temperature, elasticity, bond strength, density, brittleness, dissolved pore, and residual materials of the product are significantly superior to conventional products, and low-temperature performance of the product is extremely advantageous.
Description
Technical field
The invention belongs to foam gap filler field, particularly relate to the polyurethane foam material that a kind of ultra low temperature uses.
Background technology
Polyurethane foams full name sealing agent of single component polyurethane foam, is commonly called as whipping agent, foamed glue, PU spackling, is the product of aerosol technology and polyurethane foam technology cross coupled.It is a kind of special polyurethane products components such as polyurethane prepolymer, whipping agent, catalyzer filled in withstand voltage inhalator jar.When material sprays from inhalator jar, the polyurethane materials of foam shape can undergoes rapid expansion form foam with the moisture generation curing reaction in air or the matrix that touches.Cranny filler of polyurethane foam foam after solidification has the multi-effects such as joint filling, bonding, sealing, heat insulation, sound-absorbing, a kind of environmental protection and energy saving, material of construction easy to use, be applicable to sealing and plugging, fill a vacancy squeegee, fixing bonding, heat preservation and soundproof, is particularly useful for plastic-steel or the sealing and plugging between aluminum alloy doors and windows and body of wall and waterproof.
Sealing agent of single component polyurethane foam is a kind of chemical building material of moisture curing, and the use of this product is very large to the dependency of temperature and humidity, generally relatively more suitable temperature range at 15-28 DEG C, humidity 35-70%.But have a lot of realistic problems in actual use, especially at the north of china in winter outdoor temperature of China below 0 DEG C.Especially generally all can there is following point when temperature is lower in traditional sealing agent of single component polyurethane foam: foam curing is slow below 0 DEG C, in foam cures so solidification after always crisp, even play powder, there is abscess thick again, there is dissolution pore, even foam pressure is not enough, and play glue not to the utmost etc., it is specifically filled a prescription in table 1.
The conventional formulation of table 1 sealing agent of single component polyurethane foam
| Material name and numbering | Mass fraction |
| Polyether glycol 310 | 20-30 |
| Polyether glycol 305 | 10-40 |
| Polyether glycol 204 | 30-50 |
| Clorafin | 20-50 |
| Siloxane-Oxyalkylene Copolymers 8871 | 3-5 |
| Catalyzer | 2-4 |
| Isocyanic ester | 250-300 |
| Dme | 50-70 |
| Liquefied petroleum gas (LPG) | 40-90 |
The consumption of starting material-isocyanic ester that the performance due to sealing agent of single component polyurethane foam is important with it has direct relation.The add-on of isocyanic ester is not enough, and froth product hardness usually can be made inadequate, and cementability is poor, affects its use properties.The low temperature brittleness of foam and the consumption of isocyanic ester have direct relation, but in order to ensure the performance of foam, the Low Temperature Problems how solving foam is extremely urgent.
Summary of the invention
The present invention is directed to above-mentioned technical problem, the consumption providing a kind of isocyanic ester is low and still can keep the polyurethane foam material that the ultra low temperature of good adhesiveproperties uses.
The technical solution adopted in the present invention is: the polyurethane foam material that a kind of ultra low temperature uses, it is characterized in that, comprise polyether glycol I, polyether glycol II, admixtured polyether polyvalent alcohol III, clorafin, three (chloro isopropyl) phosphoric acid ester, Siloxane-Oxyalkylene Copolymers, catalyzer, isocyanic ester, methyl ether, liquefied petroleum gas (LPG), each component consists of according to mass fraction: polyether glycol I 10-70 part, polyether glycol II 20-50 part, admixtured polyether polyvalent alcohol III 50-120 part, clorafin and three (chloro isopropyl) phosphoric acid ester is 50-80 part altogether, Siloxane-Oxyalkylene Copolymers 3-5 part, catalyzer 2-4 part, isocyanic ester 250-300 part, methyl ether 60-80 part, liquefied petroleum gas (LPG) 30-90 part,
The molecular weight of described polyether glycol I is 1000, functionality is 3;
The molecular weight 600 of described polyether glycol II, functionality are 2;
The molecular-weight average 700 of described admixtured polyether polyvalent alcohol III, average functionality are 2.5.
Each component consists of by more high quality number: polyether glycol I 40 parts, polyether glycol II 35 parts, admixtured polyether polyvalent alcohol III 85 parts, clorafin and three (chloro isopropyl) phosphoric acid ester 65 parts, Siloxane-Oxyalkylene Copolymers 4 parts, catalyzer 3 parts, isocyanic ester 275 parts, methyl ether 70 parts, liquefied petroleum gas (LPG) 60 parts.
The ending ratio 50% of described Siloxane-Oxyalkylene Copolymers.
Described catalyzer is 2,2-dimorpholine base Anaesthetie Ether.
The model of described polyether glycol I is polyether glycol 310, and the model of described polyether glycol II is polyether glycol GN-JM-2060, and the model of described admixtured polyether polyvalent alcohol III is polyether glycol GN-JM-5070.
Described Siloxane-Oxyalkylene Copolymers model be GN-GY-708.
Comprise propane, butane, propellent in described liquefied petroleum gas (LPG), propane, butane, propellent consist of propane 40-60 part, butane 10-30 part, propellent 20-40 part according to gas volume number.
In described liquefied petroleum, propane, butane, propellent consist of 50 parts, propane, butane 20 parts, propellent 30 parts according to more excellent gas volume number.
Described isocyanic ester is MDI.
Beneficial effect of the present invention is:
1, in the present invention, the consumption of isocyanic ester is very low and still can keep good adhesiveproperties, and the present invention can use at ultra low temperature;
2, the elasticity of product of the present invention, cohesive strength, density, fragility, dissolution pore, salvage stores are obviously better than traditional product, and the low-temperature performance of product of the present invention is very superior.
3, aborning, isocyanic ester selects thick MDI, and production cost is low.
Embodiment
One, embodiment part
Embodiment 1
(1) each component is weighed according to following mass fraction: polyether glycol I 10 parts, polyether glycol II 25 parts, admixtured polyether polyvalent alcohol III 100 parts, clorafin and three (chloro isopropyl) phosphoric acid ester 60 parts, Siloxane-Oxyalkylene Copolymers 3 parts, 2,2-dimorpholine base Anaesthetie Ethers 2 parts, isocyanic ester 250 parts, methyl ether 60 parts, liquefied petroleum gas (LPG) 70 parts;
The molecular weight of polyether glycol I is 1000, functionality is 3;
The molecular weight 600 of polyether glycol II, functionality are 2;
The molecular-weight average 700 of admixtured polyether polyvalent alcohol III, average functionality are 2.5;
40 parts, propane, butane 30 parts, propellent 30 parts is consisted of according to gas volume number in liquefied petroleum gas (LPG);
The model of polyether glycol I is polyether glycol 310, and the model of polyether glycol II is polyether glycol GN-JM-2060, and the model of admixtured polyether polyvalent alcohol III is polyether glycol GN-JM-5070;
The model that Siloxane-Oxyalkylene Copolymers is is GN-GY-708, Siloxane-Oxyalkylene Copolymers ending ratio 50%;
Isocyanic ester selects thick MDI, and thick MDI is the mixture of two, three, four officials of diphenylmethanediisocyanate, wherein two officials account for 45-55%, three officials account for 25-35%, and four officials account for 15-25%.
(2) above-mentioned formula is processed according to following complete processing:
According to formula rate by polyether glycol I, polyether glycol II, admixtured polyether polyvalent alcohol III, Siloxane-Oxyalkylene Copolymers, clorafin, three (chloro isopropyl) phosphoric acid ester, 2,2-dimorpholine base Anaesthetie Ether mixes in the vacuum stirring still of 30 DEG C, namely forms industry and is commonly called as " white material mixture ";
On Full-automatic foaming agent filling production lines, seal with sealing machine immediately after white material mixture and isocyanic ester component alternately being poured into the aerosol batch can of 750ml, methyl ether and liquefied petroleum gas (LPG) is added successively after sealing, and shake well, in jolting process, each component generation thermopositive reaction in tank, exothermic temperature is with the change in season, envrionment temperature is different, during its heat release, pot temperature is also different, winter, exothermic temperature was 30 DEG C, summer, exothermic temperature was 45 DEG C, reaction required time needs 24h usually, treat polyether glycol I, polyether glycol II, polyether glycol III and isocyanic ester are after in tank, prepolymerization reaction terminates, pot temperature is reduced to normal temperature, enter finishing room.
Embodiment 2
(1) each component is weighed according to following mass fraction: polyether glycol I 10 parts, polyether glycol II 50 parts, admixtured polyether polyvalent alcohol III 110 parts, clorafin and three (chloro isopropyl) phosphoric acid ester 60 parts, Siloxane-Oxyalkylene Copolymers 3 parts, 2,2-dimorpholine base Anaesthetie Ethers 4 parts, isocyanic ester 270 parts, methyl ether 80 parts, liquefied petroleum gas (LPG) 50 parts;
The molecular weight of polyether glycol I is 1000, functionality is 3;
The molecular weight 600 of polyether glycol II, functionality are 2;
The molecular-weight average 700 of admixtured polyether polyvalent alcohol III, average functionality are 2.5;
Liquefied petroleum gas (LPG) consists of 60 parts, propane, butane 10 parts, propellent 30 parts according to gas volume number;
The model of polyether glycol I is polyether glycol 310, and the model of polyether glycol II is polyether glycol GN-JM-2060, and the model of admixtured polyether polyvalent alcohol III is polyether glycol GN-JM-5070;
The model that Siloxane-Oxyalkylene Copolymers is is GN-GY-708, the ending ratio 50% of Siloxane-Oxyalkylene Copolymers;
Isocyanic ester selects thick MDI, and thick MDI is the mixture of two, three, four officials of diphenylmethanediisocyanate, wherein two officials account for 45-55%, three officials account for 25-35%, and four officials account for 15-25%.
(2) complete processing is with embodiment 1.
Embodiment 3
(1) each component is weighed according to following mass fraction: polyether glycol I 40 parts, polyether glycol II 35 parts, admixtured polyether polyvalent alcohol III 85 parts, clorafin and three (chloro isopropyl) phosphoric acid ester 65 parts, Siloxane-Oxyalkylene Copolymers 4 parts, 2,2-dimorpholine base Anaesthetie Ethers 3 parts, isocyanic ester 275 parts, methyl ether 70 parts, liquefied petroleum gas (LPG) 60 parts;
The molecular weight of polyether glycol I is 1000, functionality is 3;
The molecular weight 600 of polyether glycol II, functionality are 2;
The molecular-weight average 700 of admixtured polyether polyvalent alcohol III, average functionality are 2.5;
Liquefied petroleum gas (LPG) consists of 50 parts, propane, butane 20 parts, propellent 30 parts according to gas volume number;
The model of polyether glycol I is polyether glycol 310, and the model of polyether glycol II is polyether glycol GN-JM-2060, and the model of admixtured polyether polyvalent alcohol III is polyether glycol GN-JM-5070;
Siloxane-Oxyalkylene Copolymers model be GN-GY-708, Siloxane-Oxyalkylene Copolymers ending ratio 50%;
Isocyanic ester selects thick MDI, and thick MDI is the mixture of two, three, four officials of diphenylmethanediisocyanate, wherein two officials account for 45-55%, three officials account for 25-35%, and four officials account for 15-25%.
(2) complete processing is with embodiment 1.
Embodiment 4
(1) each component is weighed according to following mass fraction: polyether glycol I 70 parts, polyether glycol II 50 parts, admixtured polyether polyvalent alcohol III 60 parts, clorafin and three (chloro isopropyl) phosphoric acid ester 50 parts, Siloxane-Oxyalkylene Copolymers 4 parts, 2,2-dimorpholine base Anaesthetie Ethers 3 parts, isocyanic ester 260 parts, methyl ether 70 parts, liquefied petroleum gas (LPG) 90 parts;
The molecular weight of polyether glycol I is 1000, functionality is 3;
The molecular weight 600 of polyether glycol II, functionality are 2;
The molecular-weight average 700 of admixtured polyether polyvalent alcohol III, average functionality are 2.5;
Liquefied petroleum gas (LPG) consists of 50 parts, propane, butane 30 parts, propellent 20 parts according to gas volume number;
The model of polyether glycol I is polyether glycol 310, and the model of polyether glycol II is polyether glycol GN-JM-2060, and the model of admixtured polyether polyvalent alcohol III is polyether glycol GN-JM-5070;
The model that Siloxane-Oxyalkylene Copolymers is is GN-GY-708, the ending ratio 50% of Siloxane-Oxyalkylene Copolymers;
Isocyanic ester selects thick MDI, and thick MDI is the mixture of two, three, four officials of diphenylmethanediisocyanate, wherein two officials account for 45-55%, three officials account for 25-35%, and four officials account for 15-25%.
(2) complete processing is with embodiment 1.
Embodiment 5
(1) each component is weighed according to following mass fraction: polyether glycol I 30 parts, polyether glycol II 40 parts, admixtured polyether polyvalent alcohol III 80 parts, clorafin and three (chloro isopropyl) phosphoric acid ester 80 parts, Siloxane-Oxyalkylene Copolymers 3 parts, 2,2-dimorpholine base Anaesthetie Ethers 3 parts, isocyanic ester 300 parts, methyl ether 60 parts, liquefied petroleum gas (LPG) 40 parts;
The molecular weight of polyether glycol I is 1000, functionality is 3;
The molecular weight 600 of polyether glycol II, functionality are 2;
The molecular-weight average 700 of admixtured polyether polyvalent alcohol III, average functionality are 2.5;
Liquefied petroleum gas (LPG) consists of 50 parts, propane, butane 10 parts, propellent 40 parts according to gas volume number;
The model of polyether glycol I is polyether glycol 310, and the model of polyether glycol II is polyether glycol GN-JM-2060, and the model of admixtured polyether polyvalent alcohol III is polyether glycol GN-JM-5070;
The model that Siloxane-Oxyalkylene Copolymers is is GN-GY-708, the ending ratio 50% of Siloxane-Oxyalkylene Copolymers;
Isocyanic ester selects thick MDI, and thick MDI is the mixture of two, three, four officials of diphenylmethanediisocyanate, wherein two officials account for 45-55%, three officials account for 25-35%, and four officials account for 15-25%.
(2) complete processing is with embodiment 1.
Two, performance comparison experiment
Take product and conventional formulation product in the present invention and carry out performance contrast experiment, the physical index test of foam comprises elasticity, cohesive strength, density, fragility, dissolution pore, the salvage stores of foam, and the concrete testing method of the elasticity of foam, cohesive strength, density performs according to JC936-2004 People's Republic of China (PRC) building material industry standard-single-component cranny filler of polyurethane foam; Conventional formulation product, product of the present invention are played glue at 0 DEG C respectively, still keeps envrionment temperature to be 0 DEG C after playing glue, the material remnant amount in 2h and 24h difference test products fragility, dissolution pore situation, batch can, concrete test result is in table 2.
The physical index test data synopsis of table 2 foam
| The physical index of foam | Conventional formulation product | Product of the present invention | Detecting instrument or detection method |
| Elasticity (cm) | 2 | 4 | Foam rebound test instrument |
| Cohesive strength (kpa) | 70 | 75 | Universal testing machine |
| Density (kg/m 3) | 15-20 | 16-20 | Drainage |
| Fragility 0 DEG C of 2h | Powder | Slightly crisp | Hand touches |
| Fragility 0 DEG C of 24h | Powder | Not crisp | Hand touches |
| Dissolution pore | Have | Nothing | Observe |
| Salvage stores 0 DEG C of g | 230-250 | 180-190 | Weigh |
Can contrast very intuitively from table 2, the elasticity of product of the present invention, cohesive strength, density, fragility, dissolution pore, salvage stores are obviously better than traditional product, and the low-temperature performance of product of the present invention is very superior.
Above 5 embodiments of the present invention have been described in detail, but content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (9)
1. the polyurethane foam material of a ultra low temperature use, it is characterized in that, comprise polyether glycol I, polyether glycol II, admixtured polyether polyvalent alcohol III, clorafin, three (chloro isopropyl) phosphoric acid ester, Siloxane-Oxyalkylene Copolymers, catalyzer, isocyanic ester, methyl ether, liquefied petroleum gas (LPG), each component consists of according to mass fraction: polyether glycol I 10-70 part, polyether glycol II 20-50 part, admixtured polyether polyvalent alcohol III 50-120 part, clorafin and three (chloro isopropyl) phosphoric acid ester is 50-80 part altogether, Siloxane-Oxyalkylene Copolymers 3-5 part, catalyzer 2-4 part, isocyanic ester 250-300 part, methyl ether 60-80 part, liquefied petroleum gas (LPG) 30-90 part,
The molecular weight of described polyether glycol I is 1000, functionality is 3;
The molecular weight 600 of described polyether glycol II, functionality are 2;
The molar mass average 700 of described admixtured polyether polyvalent alcohol III, average functionality are 2.5.
2. the polyurethane foam material of a kind of ultra low temperature use according to claim 1, it is characterized in that, each component consists of by more high quality number: polyether glycol I 40 parts, polyether glycol II 35 parts, admixtured polyether polyvalent alcohol III 85 parts, clorafin and three (chloro isopropyl) phosphoric acid ester 65 parts, Siloxane-Oxyalkylene Copolymers 4 parts, catalyzer 3 parts, isocyanic ester 275 parts, methyl ether 70 parts, liquefied petroleum gas (LPG) 60 parts.
3. the polyurethane foam material of a kind of ultra low temperature use according to claim 1, is characterized in that, the ending ratio 50% of described Siloxane-Oxyalkylene Copolymers.
4. the polyurethane foam material of a kind of ultra low temperature use according to claim 1, it is characterized in that, described catalyzer is 2,2-dimorpholine base Anaesthetie Ether.
5. the polyurethane foam material of a kind of ultra low temperature use according to claim 1, it is characterized in that, the model of described polyether glycol I is polyether glycol 310, the model of described polyether glycol II is polyether glycol GN-JM-2060, and the model of described polyether glycol III is polyether glycol GN-JM-5070.
6. the polyurethane foam material of a kind of ultra low temperature use according to claim 1, it is characterized in that, the model of described Siloxane-Oxyalkylene Copolymers is GN-GY-708.
7. the polyurethane foam material of a kind of ultra low temperature use according to claim 1, it is characterized in that, comprise propane, butane, propellent in described liquefied petroleum gas (LPG), propane, butane, propellent consist of propane 40-60 part, butane 10-30 part, propellent 20-40 part according to gas volume number.
8. the polyurethane foam material of a kind of ultra low temperature use according to claim 1, it is characterized in that, in described liquefied petroleum, propane, butane, propellent consist of 50 parts, propane, butane 20 parts, propellent 30 parts according to more excellent gas volume number.
9. the polyurethane foam material of a kind of ultra low temperature use according to claim 1, it is characterized in that, described isocyanic ester is MDI.
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Cited By (4)
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| RU2672198C2 (en) * | 2016-12-21 | 2018-11-12 | Общество С Ограниченной Ответственностью "Самплекс" | Heat-insulated pipe and method for manufacture thereof |
| CN108865042A (en) * | 2017-05-15 | 2018-11-23 | 山东居欢新型材料科技有限公司 | A kind of B1 grades of flame retardant type single-component cranny filler of polyurethane foam and preparation method thereof |
| CN110437789A (en) * | 2019-08-02 | 2019-11-12 | 启东东岳化工有限公司 | A kind of environment-friendlypolyurethane polyurethane binder and preparation method thereof for being bonded granulated cork |
| CN111303818A (en) * | 2020-04-13 | 2020-06-19 | 山东誉中新材料股份有限公司 | Polyurethane foaming adhesive |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110437789A (en) * | 2019-08-02 | 2019-11-12 | 启东东岳化工有限公司 | A kind of environment-friendlypolyurethane polyurethane binder and preparation method thereof for being bonded granulated cork |
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| CN105440254B (en) | 2018-08-21 |
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