CN109337354A - A kind of polyurethane adiabatic heat-insulation material - Google Patents
A kind of polyurethane adiabatic heat-insulation material Download PDFInfo
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- CN109337354A CN109337354A CN201811081635.3A CN201811081635A CN109337354A CN 109337354 A CN109337354 A CN 109337354A CN 201811081635 A CN201811081635 A CN 201811081635A CN 109337354 A CN109337354 A CN 109337354A
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
- C08J2203/184—Binary blends of expanding agents of chemical foaming agent and physical blowing agent, e.g. azodicarbonamide and fluorocarbon
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- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
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- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
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- C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/08—Oxygen-containing compounds
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Abstract
A kind of polyurethane adiabatic heat-insulation material, it is made of component A and B component two parts, the mass ratio of the component A and B component is 1:(1.05-1.2), the component A is made of the raw material of following parts by weight: 60-80 parts of polyether polyol, 20-30 parts of modifying epoxy resin by organosilicon, 20-30 parts of pentamethylene foaming agent, 2-4 parts of polysiloxanes, 1-3 parts of triethylene diamine, 1-3 parts of water, 2-4 parts of silane coupling agent, 25-35 parts of calcium sulfate crystal whiskers, 5-7 parts of cellulose whiskers, and the B component is polyisocyanates.The present invention significantly enhances the flame retardant properties, mechanical properties and high temperature resistance of polyurethane, and reduces polyurethane heat insulation material price to a certain extent by adding filler, and polyurethane heat insulation material utilization rate can be improved.
Description
Technical field
The invention belongs to thermal insulation material technical fields, and in particular to a kind of polyurethane adiabatic heat-insulation material.
Background technique
The common thermal insulation material of air-conditioning heat-insulation system mainly has using mineral wool, rock wool, perlite as the inorganic heat preservation of representative
Material and using polyphenyl, polyethylene, polyurethane material as the organic insulation material of representative, although organic insulation material poor fire,
But there is thermal insulation property more superior than inorganic heat insulation material, with the gradually anxiety of energy resources, there is more preferable energy conservation effect
The organic insulation material of fruit is using more and more extensive.
Polyurethane heat insulation material be using polyfunctionality organic isocyanate and polyether polyol as raw material, in catalyst and its
A kind of lower foamed plastics generated of his raw material effect, is the best material of current thermal insulation property, thermal coefficient can be down to 0.016-
0.028w/mk, and it is moisture-proof, hydrophobicity performance is good, long service life, while security performance is also relatively high, but polyurethane heat-insulation
Material is not high in the utilization rate of China's thermal insulation material, and only 10% or so, first is that being made compared with other organic insulation materials
Valence is relatively high, and two compared with inorganic heat insulation material, and flame retardant property, intensity and high temperature resistance are poor.
Summary of the invention
The object of the invention is that providing a kind of polyurethane adiabatic heat-insulation material to solve the deficiencies in the prior art.
The purpose of the present invention is what is realized with following technical proposals:
A kind of polyurethane adiabatic heat-insulation material, it is made of component A and B component two parts, the matter of the component A and B component
Amount is than being 1:(1.05-1.2), the component A is made of the raw material of following parts by weight: 60-80 parts of polyether polyol, organosilicon change
20-30 parts of epoxy resin of property, 20-30 parts of pentamethylene foaming agent, 2-4 parts of polysiloxanes, 1-3 parts of triethylene diamine, 1-3 parts of water,
2-4 parts of silane coupling agent, 25-35 parts of calcium sulfate crystal whiskers, 5-7 parts of cellulose whiskers, the B component are polyisocyanates.
The polyether polyol is the polyoxypropylene polyol of hydroxyl value 350-650mgOH/g, degree of functionality greater than 3.
The polyisocyanates is polymethylene multi-phenenyl isocyanate.
The silane coupling agent is KH550.
Polyurethane adiabatic heat-insulation material provided by the invention adds on the basis of polyether polyols pure and mild isocyanate systems
Modifying epoxy resin by organosilicon has been added to substitute part polyether polyol, the hydroxyl contained may participate in react with isocyanates, with
And calcium sulfate crystal whiskers and cellulose whiskers filler are added to, significantly enhance the flame retardant properties, mechanical properties of polyurethane and resistance to
High-temperature behavior, and polyurethane heat insulation material price is reduced to a certain extent by adding filler, polyurethane heat-insulation material can be improved
Expect utilization rate.
Specific embodiment
Embodiment 1
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:(1.05-1.2), the component A is made of the raw material of following parts by weight: 60-80 parts of polyether polyol,
20-30 parts of modifying epoxy resin by organosilicon, 20-30 parts of pentamethylene foaming agent, 2-4 parts of polysiloxanes, 1-3 parts of triethylene diamine,
1-3 parts of water, 2-4 parts of silane coupling agent, 25-35 parts of calcium sulfate crystal whiskers, 5-7 parts of cellulose whiskers, the B component are polyisocyanic acid
Ester.
Component A raw material, is first uniformly mixed by the preparation method of polyurethane adiabatic heat-insulation material as described above, then with B
Component be uniformly mixed, free foaming to get.
In formula, polyether polyol be preferably hydroxyl value 350-650mgOH/g, degree of functionality greater than 3 polypropylene oxide it is polynary
Alcohol, the polyoxypropylene polyol being more preferably prepared using sucrose and its blend as initiator, can reduce cost；Polyisocyanate
Cyanate preferably uses polymethylene multi-phenenyl isocyanate, and performance is more stable.Pentamethylene foaming agent and water are as chemistry
Foaming agent, alternative chlorofluorocarbons CFCS foaming agent reduce influence to environment, polysiloxanes as foam stabiliser, meanwhile, it is poly-
Siloxanes also has the function of hydrophober, reinforces the water-proof function of system, and triethylene diamine is catalyst, tunable expansion rate
And gelation rate.In addition to above-mentioned foaming system, modifying epoxy resin by organosilicon is also used in formula, the hydroxyl contained can join
It is reacted with isocyanates, forms composite network system, and epoxy resin can significantly improve polyurethane using organic-silicon-modified
The heat resistance and mechanical property of system, calcium sulfate crystal whiskers and cellulose whiskers, the advantages of combining reinforcing fiber and ultra-fine filling material,
It not only can be filled in foam system, enhance the flame retardant property, high temperature resistant and mechanical property of system, and pass through silane coupling agent
Bridging action, it is good with Miscibility, it is allowed to that stable foam system can be formed.Wherein selection uses calcium sulfate crystal whiskers and fiber
Plain whisker, not only due to the two is cheap, and cooperates with and uses rear comprehensive inorganic crystal whisker materials and organic crystal whisker materials advantage,
Its toughening, high temperature resistance are more prominent.
Embodiment 2
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.12, and the component A is made of the raw material of following parts by weight: 70 parts of polyether polyol, organosilicon change
Property 25 parts of epoxy resin, 25 parts of pentamethylene foaming agent, 3 parts of polysiloxanes, 2 parts of triethylene diamine, 2 parts of water, silane coupling agent 3
Part, 30 parts of calcium sulfate crystal whiskers, 6 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
The polyurethane adiabatic heat-insulation material thermal conductivity that the present embodiment obtains is 0.019w/mk, density 33.7kg/m3,
Flame retardant rating B1, compression strength 0.28MPa, 100 DEG C of dimensional stabilitys (for 24 hours) 0.81%；Commercially available polyurethane adiabatic heat-insulation material
Thermal coefficient is 0.020w/mk, density 34.1kg/m3, flame retardant rating B2, compression strength 0.20MPa, 80 DEG C of dimensional stabilitys
(for 24 hours) 1.7%.
Embodiment 3
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.15, and the component A is made of the raw material of following parts by weight: 72 parts of polyether polyol, organosilicon change
Property 21 parts of epoxy resin, 24 parts of pentamethylene foaming agent, 3.5 parts of polysiloxanes, 3 parts of triethylene diamine, 1 part of water, silane coupling agent
2.5 parts, 30 parts of calcium sulfate crystal whiskers, 7 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
The polyurethane adiabatic heat-insulation material thermal conductivity that the present embodiment obtains is 0.021w/mk, density 33.8kg/m3,
Flame retardant rating B1, compression strength 0.25MPa, 100 DEG C of dimensional stabilitys (for 24 hours) 0.85%.
Embodiment 4
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.15, and the component A is made of the raw material of following parts by weight: 80 parts of polyether polyol, organosilicon change
Property 26 parts of epoxy resin, 29 parts of pentamethylene foaming agent, 4 parts of polysiloxanes, 1 part of triethylene diamine, 2.5 parts of water, silane coupling agent 3
Part, 26 parts of calcium sulfate crystal whiskers, 5.5 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
The polyurethane adiabatic heat-insulation material thermal conductivity that the present embodiment obtains is 0.024w/mk, density 33.3kg/m3,
Flame retardant rating B1, compression strength 0.26MPa, 100 DEG C of dimensional stabilitys (for 24 hours) 0.86%.
Embodiment 5
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.18, and the component A is made of the raw material of following parts by weight: 68 parts of polyether polyol, organosilicon change
Property 22 parts of epoxy resin, 22 parts of pentamethylene foaming agent, 2 parts of polysiloxanes, 2.5 parts of triethylene diamine, 2 parts of water, silane coupling agent 3
Part, 27 parts of calcium sulfate crystal whiskers, 6 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 6
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.13, and the component A is made of the raw material of following parts by weight: 62 parts of polyether polyol, organosilicon change
Property 30 parts of epoxy resin, 30 parts of pentamethylene foaming agent, 4 parts of polysiloxanes, 2 parts of triethylene diamine, 1.5 parts of water, silane coupling agent 4
Part, 35 parts of calcium sulfate crystal whiskers, 7 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 7
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.15, and the component A is made of the raw material of following parts by weight: 75 parts of polyether polyol, organosilicon change
Property 23 parts of epoxy resin, 27 parts of pentamethylene foaming agent, 3 parts of polysiloxanes, 2 parts of triethylene diamine, 3 parts of water, silane coupling agent 2.8
Part, 33 parts of calcium sulfate crystal whiskers, 5 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 8
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.2, and the component A is made of the raw material of following parts by weight: 60 parts of polyether polyol, organic-silicon-modified
25 parts of epoxy resin, 20 parts of pentamethylene foaming agent, 2 parts of polysiloxanes, 1 part of triethylene diamine, 1 part of water, silane coupling agent 3.5
Part, 25 parts of calcium sulfate crystal whiskers, 6.5 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 9
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.1, and the component A is made of the raw material of following parts by weight: 65 parts of polyether polyol, organic-silicon-modified
24 parts of epoxy resin, 26 parts of pentamethylene foaming agent, 3 parts of polysiloxanes, 2.5 parts of triethylene diamine, 2 parts of water, silane coupling agent 2.2
Part, 31 parts of calcium sulfate crystal whiskers, 5 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 10
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.08, and the component A is made of the raw material of following parts by weight: 65 parts of polyether polyol, organosilicon change
Property 20 parts of epoxy resin, 25 parts of pentamethylene foaming agent, 2 parts of polysiloxanes, 2 parts of triethylene diamine, 2.4 parts of water, silane coupling agent 2
Part, 32 parts of calcium sulfate crystal whiskers, 6 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 11
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.1, and the component A is made of the raw material of following parts by weight: 70 parts of polyether polyol, organic-silicon-modified
25 parts of epoxy resin, 28 parts of pentamethylene foaming agent, 3.5 parts of polysiloxanes, 3 parts of triethylene diamine, 2 parts of water, silane coupling agent 3.8
Part, 20 parts of calcium sulfate crystal whiskers, 5.5 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 12
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.05, and the component A is made of the raw material of following parts by weight: 80 parts of polyether polyol, organosilicon change
It is 29 parts of epoxy resin of property, 30 parts of pentamethylene foaming agent, 2.5 parts of polysiloxanes, 1.5 parts of triethylene diamine, 1 part of water, silane coupled
3 parts of agent, 28 parts of calcium sulfate crystal whiskers, 6 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 13
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.1, and the component A is made of the raw material of following parts by weight: 75 parts of polyether polyol, organic-silicon-modified
28 parts of epoxy resin, 20 parts of pentamethylene foaming agent, 3 parts of polysiloxanes, 1 part of triethylene diamine, 3 parts of water, silane coupling agent 2.5
Part, 35 parts of calcium sulfate crystal whiskers, 7 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 14
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.16, and the component A is made of the raw material of following parts by weight: 60 parts of polyether polyol, organosilicon change
Property 20 parts of epoxy resin, 23 parts of pentamethylene foaming agent, 2.5 parts of polysiloxanes, 3 parts of triethylene diamine, 2 parts of water, silane coupling agent 4
Part, 29 parts of calcium sulfate crystal whiskers, 6 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 15
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.13, and the component A is made of the raw material of following parts by weight: 78 parts of polyether polyol, organosilicon change
Property 27 parts of epoxy resin, 25 parts of pentamethylene foaming agent, 4 parts of polysiloxanes, 1.5 parts of triethylene diamine, 3 parts of water, silane coupling agent 2
Part, 30 parts of calcium sulfate crystal whiskers, 5 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Embodiment 16
Polyurethane adiabatic heat-insulation material provided by the invention, it is made of component A and B component two parts, the component A and B
The mass ratio of component is 1:1.13, and the component A is made of the raw material of following parts by weight: 70 parts of polyether polyol, organosilicon change
Property 30 parts of epoxy resin, 21 parts of pentamethylene foaming agent, 3 parts of polysiloxanes, 2 parts of triethylene diamine, 1.5 parts of water, silane coupling agent
3.3 parts, 34 parts of calcium sulfate crystal whiskers, 6.5 parts of cellulose whiskers, the B component are polyisocyanates, other are the same as embodiment 1.
The preparation method of polyurethane adiabatic heat-insulation material as described above, component A raw material is first mixed, stir under room temperature
Then 1h is uniformly mixed with B component, free foaming to get.
Claims (4)
1. a kind of polyurethane adiabatic heat-insulation material, it is characterised in that it is made of component A and B component two parts, the component A
Mass ratio with B component is 1:(1.05-1.2), the component A is made of the raw material of following parts by weight: polyether polyol 60-80
Part, 20-30 parts of modifying epoxy resin by organosilicon, 20-30 parts of pentamethylene foaming agent, 2-4 parts of polysiloxanes, triethylene diamine 1-3
Part, 1-3 parts of water, 2-4 parts of silane coupling agent, 25-35 parts of calcium sulfate crystal whiskers, 5-7 parts of cellulose whiskers, the B component are polyisocyanate
Cyanate.
2. polyurethane adiabatic heat-insulation material as described in claim 1, it is characterised in that the polyether polyol is hydroxyl value 350-
650mgOH/g, degree of functionality are greater than 3 polyoxypropylene polyol.
3. polyurethane adiabatic heat-insulation material as described in claim 1, it is characterised in that the polyisocyanates is polymethylene
More phenyl isocyanates.
4. polyurethane adiabatic heat-insulation material as described in claim 1, it is characterised in that the silane coupling agent is KH550.
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