CN114316179B - Combined polyether for ultralow-temperature spray polyurethane and application thereof - Google Patents
Combined polyether for ultralow-temperature spray polyurethane and application thereof Download PDFInfo
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- CN114316179B CN114316179B CN202111635254.7A CN202111635254A CN114316179B CN 114316179 B CN114316179 B CN 114316179B CN 202111635254 A CN202111635254 A CN 202111635254A CN 114316179 B CN114316179 B CN 114316179B
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- 229920000570 polyether Polymers 0.000 title claims abstract description 82
- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 81
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 24
- 239000004814 polyurethane Substances 0.000 title claims abstract description 23
- 239000007921 spray Substances 0.000 title claims abstract description 16
- 229920005862 polyol Polymers 0.000 claims abstract description 54
- 150000003077 polyols Chemical class 0.000 claims abstract description 54
- 239000006260 foam Substances 0.000 claims abstract description 34
- 239000003054 catalyst Substances 0.000 claims abstract description 31
- 239000004088 foaming agent Substances 0.000 claims abstract description 22
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 19
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003063 flame retardant Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 10
- 238000005187 foaming Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 31
- 238000006243 chemical reaction Methods 0.000 claims description 22
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 16
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 14
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 12
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical group FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 229920002545 silicone oil Polymers 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 239000002666 chemical blowing agent Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 7
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 claims description 7
- KVMPUXDNESXNOH-UHFFFAOYSA-N tris(1-chloropropan-2-yl) phosphate Chemical compound ClCC(C)OP(=O)(OC(C)CCl)OC(C)CCl KVMPUXDNESXNOH-UHFFFAOYSA-N 0.000 claims description 7
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 6
- 235000019253 formic acid Nutrition 0.000 claims description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 4
- 239000011496 polyurethane foam Substances 0.000 abstract description 4
- 238000000889 atomisation Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000010097 foam moulding Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- GTEXIOINCJRBIO-UHFFFAOYSA-N 2-[2-(dimethylamino)ethoxy]-n,n-dimethylethanamine Chemical compound CN(C)CCOCCN(C)C GTEXIOINCJRBIO-UHFFFAOYSA-N 0.000 description 1
- WAPWXMDDHHWKNM-UHFFFAOYSA-N 3-[2,3-bis[3-(dimethylamino)propyl]triazinan-1-yl]-n,n-dimethylpropan-1-amine Chemical compound CN(C)CCCN1CCCN(CCCN(C)C)N1CCCN(C)C WAPWXMDDHHWKNM-UHFFFAOYSA-N 0.000 description 1
- HHDUMDVQUCBCEY-UHFFFAOYSA-N 4-[10,15,20-tris(4-carboxyphenyl)-21,23-dihydroporphyrin-5-yl]benzoic acid Chemical compound OC(=O)c1ccc(cc1)-c1c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc([nH]2)c(-c2ccc(cc2)C(O)=O)c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc1[nH]2 HHDUMDVQUCBCEY-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical group CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to a combined polyether for ultralow-temperature spray polyurethane and application thereof, and belongs to the technical field of combined polyether. The combined polyether disclosed by the invention comprises the following raw materials in percentage by mass: 10-35% of polyether polyol A, 5-30% of polyester polyol B, 5-20% of polyether polyol C, 2-10% of polyether polyol D, 0.2-1.5% of catalyst A, 3-9% of composite catalyst B, 15-40% of flame retardant, 2-8% of physical foaming agent, 0.5-2.5% of chemical foaming agent and 1-2% of foam stabilizer. The polyurethane foam prepared by the method has good milky white foaming capacity under the condition of low temperature (the construction environment temperature is lower than 0 ℃), better atomization, no crisp problem after foam molding and standard dimensional stability; the invention also provides a simple and easy application.
Description
Technical Field
The invention relates to a combined polyether for ultralow-temperature spray polyurethane and application thereof, and belongs to the technical field of combined polyether.
Background
Polyurethane foam has excellent heat preservation and cold preservation performance and is widely applied in various industries. With the promotion of national cold chain logistics engineering, the more widely the use of various cold storage warehouses and cold storage vehicles. Meanwhile, along with the use process, the damage and aging of the polyurethane foam are unavoidable, and the damage of the foam tends to lead to continuous rising of the refrigeration cost, so that when obvious cracking phenomenon of the foam occurs or the problem of condensation occurs on the outer wall, the foam needs to be repaired. According to the past repair experience, if the damaged part of the refrigeration house needs to be subjected to large-scale spraying repair, the refrigeration unit needs to be stopped, and meanwhile, the articles stored in the refrigeration unit need to be treated, so that great manpower and material resources are wasted; the small-scale repair needs to be performed on the substrate in the aspect of increasing the attaching force, and a wooden keel is added on the substrate, but the problem of the bonding force between the foam and the low-temperature substrate cannot be solved.
The 141b foaming agent used in the spraying industry at present is close to the eliminated tail sound, more alternatives are 245fa and pentane, 245fa is more fragile, pentane has the characteristic of inflammability and explosiveness, so that the two foaming agents are limited in the application of the refrigerator industry, and meanwhile, the two foaming agents have the characteristic of low-temperature brittleness, cannot be constructed in an environment below 0 ℃ and do not have low-temperature application conditions. Solves the problem of replacing the prior foaming agent, and simultaneously has better substrate binding force and dimensional change rate when the ambient temperature is lower than 0 ℃ and is the problem to be solved in an important way.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects in the prior art and providing the combined polyether for the ultralow-temperature spray polyurethane, wherein the polyurethane foam prepared by the combined polyether has good milky white foaming capacity under the low-temperature condition (the construction environment temperature is lower than 0 ℃), is better in atomization, has no crisp problem after foam molding, and has the dimension stability reaching the standard; the invention also provides a simple and easy application.
The invention relates to a combined polyether for ultralow-temperature spray polyurethane, which comprises the following raw materials in percentage by mass:
the polyether polyol A is sucrose polyether polyol, the functionality is 4-6, the hydroxyl value is 350-430 mgKOH/g, and the viscosity is 2000-4000mpas. INOVOL R4110B/R5110, a new material, nanopol, shandong is preferred.
The polyester polyol B is phthalic anhydride polyester polyol, the functionality is 2, and the hydroxyl value is 150-350 mgKOH/g. Preferably, either monoway polyurethane stock, inc. D504, or monoway polyurethane stock, inc. B175.
The polyether polyol C is epoxidized soybean oil modified polyether polyol, the functionality is 3-6, the hydroxyl value is 350-500 mgKOH/g, and the viscosity is 2000-4000mpas. INOVOL R9001, a new material limited of Nanopol, shandong is preferred.
The polyether polyol D is a polyether polyol taking glycerol as an initiator, the functionality is 2.5-3.5, and the hydroxyl value is 150-500 mgKOH/g. INOVOL C310, INOVOL C303, new material limited, monowan, shandong is preferred.
Preferably, catalyst a is formic acid. Reagent grade formic acid is preferred.
Preferably, the composite catalyst B is a mixture of tertiary amine hydrolysis-resistant catalyst and organic metal catalyst. Further preferred are mixtures of bis (dimethylaminoethyl) ether (A1), 33% triethylenediamine solution (A33), tris (dimethylaminopropyl) hexahydrotriazine (PC 41), quaternary ammonium salts (TMR-2), dibutyltin dilaurate (T12); the mass ratio is 2-4: 2 to 4: 0.5-1:0.1-0.5:0.5-1.
Preferably, the flame retardant is a compound of an additive type halogenated phosphate flame retardant. The preferable Zhejiang Wansheng TCPP and TEP are compounded according to the proportion of 15 to 25:5 to 15.
Preferably, the physical blowing agent is 245fa.
Preferably, the chemical blowing agent is water. Deionized water is further preferred.
The foam stabilizer is polyether modified organic silicon surfactant. L6950 (commercially available from Michaelis A.C.) is preferred.
The application of the combined polyether for the ultralow temperature spray polyurethane comprises the following steps:
(1) Preparation of component A polyether composition: sequentially mixing polyether polyol A, polyester polyol B, polyether polyol C, polyether polyol D, foam stabilizer, catalyst A, composite catalyst B, chemical foaming agent, physical foaming agent and flame retardant, and stirring at normal temperature for 0.3-0.5 hour; detecting qualified barrelling to obtain a component A;
(2) Component B is methyl polyphenyl isocyanate;
(3) When in use, the component A and the component B are mixed according to the weight ratio of 100:100, and the ultra-low temperature spray polyurethane can be prepared.
According to the combined polyether for the ultralow-temperature spray polyurethane, the low-temperature dimensional stability of foam is ensured through the proportion of the physical foaming agent and the chemical foaming agent, and the brittleness and the adhesive force of the foam are improved through the collocation of the main polyol, so that the adhesive force of materials on a low-temperature substrate is effectively improved; while guaranteeing the toughness and the cohesive force of the foam, selecting proper polyester polyol, improving the structural flame retardant property of the foam, and finally combining the flame retardant and the PIR conversion efficiency of the foam, and improving the flame retardance of the foam; the material has the characteristics of good atomization effect, quick foaming on the low-temperature base material, good foam toughness and good binding force with the base material in the construction environment below 0 ℃ by mixing and spraying the material on the base material through a spraying foaming machine for construction.
Compared with the prior art, the invention has the following beneficial effects:
(1) The combined polyether for ultralow-temperature spray polyurethane has good low-temperature foaming performance, the actual construction temperature can reach below 0 ℃, and the foaming speed can still reach the construction requirements of spray materials with 3s for starting and 8s for wire drawing when the actual test material temperature is 0 ℃;
(2) The combined polyether for the ultralow temperature spray polyurethane has the advantages that the foam is molded and cured quickly, the common foam has a crisp period of about 2 hours after a base material is constructed at a temperature lower than 0 ℃, and if the temperature is continuously low, the foam edge can be separated from the base material; the invention effectively solves the problem, after the foam spraying is finished for 30min, the bonding force between the foam and the base material is good, and the bonding strength of the cured foam can reach more than 180 KPa;
(3) The combined polyether disclosed by the invention is suitable for an ultralow-temperature spraying system, and the foam oxygen index can reach more than 26%.
Detailed Description
The present invention is further described below with reference to examples, but the scope of the present invention is not limited thereto, and modifications made by those skilled in the art to the technical scheme of the present invention should fall within the scope of the present invention.
Except for the special descriptions, all raw materials are commercial products.
Example 1
Preparing a component A in a 1-ton reaction vessel, and weighing respectively: polyether polyol R5110 (new material, norwegian, shandong): 25 parts; polyester polyol D504 (shandong monoowei polyurethane stock company): 50 parts; polyether polyol R9001 (new material limited of norwegian, shandong): 10 parts; polyether polyol C310:15 parts; silicone oil L6950 (michaux): 2 parts; chemical blowing agent H 2 O:3.5 parts; catalyst A:0.5 parts; a1:3 parts; a33 (33% solution of triethylenediamine): 2.7 parts, PC41:1.2 parts of TMR-2:0.4 parts; t12:1.2 parts; flame retardant TCPP:45 parts of flame retardant TEP:10 parts; 245fa:14 parts.
Sequentially adding the weighed polyether polyol A, polyester polyol B, polyether polyol C, polyether polyol D, foam stabilizer, catalyst A, composite catalyst B, chemical foaming agent, physical foaming agent and flame retardant into a reaction kettle, stirring for 0.2 hour at normal temperature, taking out for inspection, satisfying the process parameters, and sending out foam to obtain a qualified product of the component A, taking out from the reaction kettle, barrelling and warehousing.
The component B is polymethylene polyphenyl isocyanate.
And mixing A, B components according to the weight ratio of A to B=100 to 100 to prepare pentane spraying type combined polyether, and testing the quality index of the product. The component A is clear and transparent.
Example 2
Preparing a component A in a 1-ton reaction vessel, and weighing respectively: polyether polyol R4110B (new material, norwegian, shandong): 55 parts; polyester polyol D504 (shandong monoowei polyurethane stock company): 25 parts; polyether polyol R9001 (new material limited of norwegian, shandong): 20 parts; polyether polyol C310:10 parts; silicone oil L6950 (michaux): 2 parts; chemical blowing agent H 2 O:2.3 parts; catalyst A:1 part; a1:3.5 parts; a33 (33% solution of triethylenediamine): 3.1 parts, PC41:1.3 parts of TMR-2:0.5 parts; t12:1.3 parts; flame retardant TCPP:35 parts of flame retardant TEP:15 parts; 245fa:11 parts.
Sequentially adding the weighed polyether polyol A, polyester polyol B, polyether polyol C, polyether polyol D, foam stabilizer, catalyst A, composite catalyst B, chemical foaming agent, physical foaming agent and flame retardant into a reaction kettle, stirring for 0.2 hour at normal temperature, taking out for inspection, satisfying the process parameters, and sending out foam to obtain a qualified product of the component A, taking out from the reaction kettle, barrelling and warehousing.
The component B is polymethylene polyphenyl isocyanate.
And mixing A, B components according to the weight ratio of A to B=100 to 100 to prepare pentane spraying type combined polyether, and testing the quality index of the product. The component A is clear and transparent.
Example 3
Preparing a component A in a 1-ton reaction vessel, and weighing respectively: polyether polyol R4110B (new material, norwegian, shandong): 55 parts; polyester polyol B175 (shandong monoowei polyurethane stock, inc): 10 parts; polyether polyol R9001 (new material limited of norwegian, shandong): 30 parts; polyether polyol C310:5 parts; silicone oil L6950 (michaux): 2 parts; chemical blowing agent H 2 O:1.3 parts; catalyst A:2 parts; a1:5 parts; a33 (33% solution of triethylenediamine): 3.5 parts, PC41:1.5 parts of TMR-2:0.6 parts; t-12:1.4 parts; flame retardant TCPP:30 parts of flame retardant TEP:20 parts; 245fa:7 parts.
Sequentially adding the weighed polyether polyol A, polyester polyol B, polyether polyol C, polyether polyol D, foam stabilizer, catalyst A, composite catalyst B, chemical foaming agent, physical foaming agent and flame retardant into a reaction kettle, stirring for 0.5 hour at normal temperature, taking out for inspection, satisfying the technological parameters, and sending out foam to obtain a qualified product of the component A, taking out from the reaction kettle, and barreling and warehousing.
A, B components are mixed according to the weight ratio of A to B=100 to 100 to prepare the ultralow temperature spray-type combined polyether, and the quality index of the product is tested. The component A is clear and transparent.
The component B is polymethylene polyphenyl isocyanate.
Comparative example 1
Preparing a component A in a 1-ton reaction vessel, and weighing respectively: polyether polyolPolyol R5110 (new material, norwegian, shandong): 25 parts; polyester polyol D504 (shandong monoowei polyurethane stock company): 50 parts; polyether polyol R9001 (new material limited of norwegian, shandong): 10 parts; polyether polyol C310:15 parts; silicone oil L6950 (michaux): 2 parts; chemical blowing agent H 2 O:4.3 parts; catalyst A:0.5 parts; a1:3 parts; a33 (33% solution of triethylenediamine): 2.7 parts, PC41:1.2 parts of TMR-2:0.4 parts; t12:1.2 parts; flame retardant TCPP:45 parts of flame retardant TEP:10 parts; 245fa:6 parts.
Sequentially adding the weighed polyether polyol A, polyester polyol B, polyether polyol C, polyether polyol D, foam stabilizer, catalyst A, composite catalyst B, chemical foaming agent, physical foaming agent and flame retardant into a reaction kettle, stirring for 0.2 hour at normal temperature, taking out for inspection, satisfying the process parameters, and sending out foam to obtain a qualified product of the component A, taking out from the reaction kettle, barrelling and warehousing.
The component B is polymethylene polyphenyl isocyanate.
And mixing A, B components according to the weight ratio of A to B=100 to 100 to prepare pentane spraying type combined polyether, and testing the quality index of the product. The component A is clear and transparent.
Comparative example 2
Preparing a component A in a 1-ton reaction vessel, and weighing respectively: polyether polyol R4110B (new material, norwegian, shandong): 55 parts; polyester polyol D504 (shandong monoowei polyurethane stock company): 45 parts; polyether polyol R9001 (new material limited of norwegian, shandong): 0 parts; polyether polyol C310:10 parts; silicone oil L6950 (michaux): 2 parts; chemical blowing agent H 2 O:2.3 parts; catalyst A:1 part; a1:3.5 parts; a33 (33% solution of triethylenediamine): 3.1 parts, PC41:1.3 parts of TMR-2:0.5 parts; t12:1.3 parts; flame retardant TCPP:35 parts of flame retardant TEP:15 parts; 245fa:11 parts.
Sequentially adding the weighed polyether polyol A, polyester polyol B, polyether polyol C, polyether polyol D, foam stabilizer, catalyst A, composite catalyst B, chemical foaming agent, physical foaming agent and flame retardant into a reaction kettle, stirring for 0.2 hour at normal temperature, taking out for inspection, satisfying the process parameters, and sending out foam to obtain a qualified product of the component A, taking out from the reaction kettle, barrelling and warehousing.
The component B is polymethylene polyphenyl isocyanate.
And mixing A, B components according to the weight ratio of A to B=100 to 100 to prepare pentane spraying type combined polyether, and testing the quality index of the product. The component A is clear and transparent.
The quality test data of the polyether composition for ultra-low temperature spray polyurethane prepared in examples 1-3 and comparative examples 1-2 are shown in Table 1.
The combination polyethers for ultra-low temperature spray polyurethane prepared in examples 1 to 3 and comparative examples 1 to 2 can achieve the indexes shown in Table 2.
TABLE 1
| Project | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Construction temperature (DEG C) | Above-5 DEG C | Above-15 DEG C | Above-25 DEG C | -5℃ | -15℃ |
| Spray coating temperature DEG C | 5℃ | 5℃ | 5℃ | 5℃ | 5℃ |
| Start s | 3 | 2 | 2 | 3 | 3 |
| Wire drawing s | 8 | 6 | 5 | 8 | 6 |
TABLE 2
The foregoing is merely exemplary embodiments of the present invention, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (2)
1. A composite polyether for ultralow temperature spray polyurethane is characterized in that:
preparing a component A in a 1-ton reaction vessel, and weighing respectively: polyether polyol R4110B, new material limited of norwegian, shandong: 55 parts; polyester polyol D504, shandong mononoc polyurethane Co., ltd.): 25 parts; polyether polyol R9001, new material limited of norwegian, shandong: 20 parts; polyether polyol C310:10 parts; silicone oil L6950, michaux: 2 parts; chemical blowing agent H 2 O:2.3 parts; catalyst formic acid: 1 part;
composite catalyst B: a1 3.5 parts of A33, namely 3.1 parts of 33% triethylene diamine solution, 1.3 parts of PC41, 0.5 part of TMR-2 and 1.3 parts of T12;
flame retardant: 35 parts of flame retardant TCPP and 15 parts of flame retardant TEP;
245fa:11 parts;
weighing polyether polyol R4110B, polyester polyol D504, polyether polyol R9001, polyether polyol C310, foam stabilizer silicone oil L6950, catalyst formic acid, composite catalyst B and chemical foaming agent H 2 Sequentially adding O, a physical foaming agent 245fa and a flame retardant into a reaction kettle, stirring for 0.2 hour at normal temperature, taking out for inspection, satisfying technological parameters, and sending out foam to obtain a qualified product of the component A, taking out from the reaction kettle, barreling and warehousing;
the component B is polymethylene polyphenyl isocyanate;
and mixing A, B component materials according to the weight ratio of A to B=100 to 100 to prepare pentane spraying type combined polyether, testing the quality index of a product, and clarifying and transparentizing the component A.
2. A composite polyether for ultralow temperature spray polyurethane is characterized in that:
preparing a component A in a 1-ton reaction vessel, and weighing respectively: polyether polyol R4110B, new material limited of norwegian, shandong: 55 parts; polyester polyol B175, shandong monoowei polyurethane stock: 10 parts; polyether polyol R9001, new material limited of norwegian, shandong: 30 parts; polyether polyol C310:5 parts; silicone oil L6950, michaux: 2 parts; chemical blowing agent H 2 O:1.3 parts; catalyst formic acid: 2 parts;
composite catalyst B: a1 5 parts, 3.5 parts of A33, namely 33 percent of triethylene diamine solution, 1.5 parts of PC41, 0.6 part of TMR-2 and 1.4 parts of T-12;
flame retardant: 30 parts of flame retardant TCPP and 20 parts of flame retardant TEP;
245fa:7 parts;
weighing polyether polyol R4110B, polyester polyol B175, polyether polyol R9001, polyether polyol C310, foam stabilizer silicone oil L6950, catalyst formic acid, composite catalyst B and chemical foaming agent H 2 Sequentially adding O, a physical foaming agent 245fa and a flame retardant into a reaction kettle, stirring for 0.5 hour at normal temperature, taking out for inspection, satisfying technological parameters, and foaming to obtain a qualified product of the component A, taking out from the reaction kettle, barreling and warehousing;
mixing A, B component materials according to the weight ratio of A:B=100:100 to prepare ultralow-temperature spray-type combined polyether, testing the quality index of a product, and clarifying and transparentizing the component A;
the component B is polymethylene polyphenyl isocyanate.
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