CN110305614A - A kind of rock wool board bi-component solvent-free polyurethane adhesive and preparation method thereof - Google Patents
A kind of rock wool board bi-component solvent-free polyurethane adhesive and preparation method thereof Download PDFInfo
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- CN110305614A CN110305614A CN201910511872.7A CN201910511872A CN110305614A CN 110305614 A CN110305614 A CN 110305614A CN 201910511872 A CN201910511872 A CN 201910511872A CN 110305614 A CN110305614 A CN 110305614A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to field of adhesive technology, and in particular to a kind of rock wool board bi-component solvent-free polyurethane adhesive and preparation method thereof.The bi-component polyurethane adhesive is configured by polyol component and isocyanate component, the weight ratio of polyol component and isocyanate component is 4~6: 1, and the composition of the polyol component includes the polyoxypropylene polyol of 35-50%, the castor oil polyhydric alcohol of 5-15%, the Sucrose polyethers polyalcohol of 1-5%, the Paris white of 35-50%, the calcium oxide powder of 0-5%, the foam stabilizer of 0.1-0.5% and the auxiliary agent of 0.1-0.8%；Polyalcohol modified methyl diphenylene diisocyanate of the composition of the isocyanate component including the polymethylene multi-phenenyl isocyanate of 91-96%, 4-9%.The present invention has viscosity low, easy to operate, and uniform in foaming is controllable；Can be with multiple building materials compound sticking, intensity is high, toughness is strong, fastness is good；High temperature resistant, cold-resistant, water resistance is excellent, and persistence is good, do not crack, not degumming the advantages that.
Description
Technical field
The invention belongs to field of adhesive technology, and in particular to a kind of rock wool board bi-component solvent-free polyurethane adhesive
And preparation method thereof.
Background technique
In recent years, with the continuous propulsion of Chinese architecture energy conservation, External Thermal Insulation Technology for External important is built as one
It builds power-saving technology and has obtained vigorous growth in China.Insulation structure for a building exterior wall refers to using certain fixed form thermally conductive system
The lower insulating materials of number is fixed as one with construction wall, increases the evenly heat resistance value of wall, to reach heat preservation or heat-insulated effect
A kind of building structure of fruit.Basic material of the organic insulation material EPS or XPS as exterior wall insulated structure is generallyd use at present,
But generally B1 grades or B2 grades of the burning of such material classification, fire.And the inorganic heat insulation materials such as rock wool is anti-
Fiery performance can achieve A grades, and thermal insulation property is better than organic insulation material, so, rock wool board, which is widely used in, in recent years builds
It builds in exterior wall insulated structure.
Although rock wool board has extraordinary heat preservation and fire protecting performance, its adhesive property and cracking resistance are poor,
Construction when easily fall off, rise drum, cracking etc. technical problems also can easily fall in the use process in later period
It is dangerous.The construction method of the heat-preserving wall generallyd use at present is to process upper paste heat-preserving laminate in exterior wall, and adhesive material is adopted more
With clay, white glue, urea-formaldehyde glue etc..But in construction, intensity rises these adhesive materials and firm time is too long, adhesive strength
Difference, anti-cracking performance is poor, and ageing-resistant performance is also bad.Therefore, it is necessary to study a kind of dedicated composite adhesive of rock wool board.
Summary of the invention
The purpose of the present invention is to provide a kind of dedicated bi-component polyurethane adhesives of rock wool board, to solve conventional adhesive
The disadvantages of adhesive strength existing for agent is low, and anti-cracking performance is poor, pollution environment, loss of properties on aging.Of the invention is solvent-free double
Part polyurethane adhesive can be used for rock wool and multiple material compound sticking, such as plank, metal, fire-proof plate, marble, cement plate
Equal materials.Bi-component solvent-free polyurethane adhesive of the invention can realize that frothing percentage is controllable, heatproof, cold-resistant, hydrolysis, infiltration
Power is strong, adhesive strength is high, and the operating time is adjustable, using simple.
What the invention is realized by the following technical scheme:
A kind of rock wool board bi-component solvent-free polyurethane adhesive, the bi-component polyurethane adhesive is by polyol component
It being configured with isocyanate component, the weight ratio of polyol component and isocyanate component is 4~6: 1,
The raw material of the polyol component forms and the mass percent of each raw material, as described below:
The raw material of the isocyanate component forms and the mass percent of each raw material, as described below:
Polymethylene multi-phenenyl isocyanate 91-96%
Polyalcohol modified methyl diphenylene diisocyanate 4-9%.
Further, the polyoxypropylene polyol is that the polypropylene oxide that weight average molecular weight is 1000-3000 is polynary
The mixture of one or both of alcohol, hydroxyl value 50-200mgKOH/g.
Further, the Sucrose polyethers polyalcohol is the polyether polyol for making initiator with sucrose and glycerol, hydroxyl value
For 300-500mgKOH/g.
Further, the calcium carbonate be 500-1500 mesh precipitated calcium carbonate powder, 200-1200 mesh heavy calcium carbonate and
The mixture of one or both of nanometer calcium carbonate.
Further, the foam stabilizer is any one of dimethicone and polyether modified silicon oil.
Further, the auxiliary agent is the mixture of one or both of dibutyl tin dilaurate and KH560.
The preparation method of rock wool board bi-component solvent-free polyurethane adhesive, comprising the following steps:
Step 1 prepares polyol component and isocyanate component respectively:
Prepare polyol component: the mass percent of each raw material described in accordance with the claim 1 takes polyether polyol, castor
Sesame oil polyalcohol, Sucrose polyethers polyalcohol, Paris white, calcium oxide powder, which are added in hybrid reactor, stirs 30min, mixed to powder
After closing, stirring 120min is vacuumized under vacuum degree > 0.9MPa state, is eventually adding foam stabilizer and auxiliary agent stirring 30min, i.e.,
Obtain polyol component；
It prepares isocyanate component: according to the mass percent of above-mentioned each raw material, taking polymethylene polyphenyl isocyanic acid
Ester and the mixing of polyether-modified methyl diphenylene diisocyanate are to get isocyanate component；
The polyol component prepared in step 1 and isocyanate component are the ratio of 4-6:1 by step 2 in mass ratio
It is uniformly mixed to get rock wool board solvent-free polyurethane adhesive.
Due to using above technical scheme and procedure of processing, the device have the advantages that as follows:
1, viscosity low (be less than 8000mPas), be easy to manual operations, (20-50min), throughout the year is adjusted in the open hour
It is handy, due to joined foam stabilizer, so that uniform in foaming is controllable (frothing percentage between 10%-200%)；
2, it due to joined Sucrose polyethers polyalcohol, and is used with polyoxypropylene polyol, castor oil polyhydric alcohol collocation,
So that the adhesive can be with multiple building materials compound sticking, intensity is high, toughness is strong, fastness is good, and shear strength can reach 1-
5MPa；
3, it is designed using bicomponent structural adhesive, high temperature resistant, cold-resistant, water resistance is excellent, and persistence is good, does not crack, does not take off
Glue.
Specific embodiment:
Illustrate the present invention below by way of specific embodiment, but the present invention is not merely defined in these embodiments.If not yet
There is special instruction, all raw materials are commercially available commercial products.
Embodiment 1
A kind of rock wool board bi-component solvent-free polyurethane adhesive, the bi-component polyurethane adhesive is by polyol component
It being stirred evenly with isocyanate component, the weight ratio of polyol component and isocyanate component is 4~6: 1,
A kind of rock wool board bi-component solvent-free polyurethane adhesive, the composition of the polyol component include:
The composition of isocyanate component includes:
Polymethylene multi-phenenyl isocyanate (polymeric MDI) 91-96%
Polyalcohol modified methyl diphenylene diisocyanate (modified MDI) 4-9%.
Further, it is in the polyoxypropylene polyol of 1000-3000 that polyoxypropylene polyol, which is weight average molecular weight,
One or two kinds of mixtures, hydroxyl value 50-200mgKOH/g.
Further, Sucrose polyethers polyalcohol, is the polyether polyol for making initiator with sucrose and glycerol, and hydroxyl value is
300-500mgKOH/g。
Further, calcium carbonate is 500-1500 mesh precipitated calcium carbonate powder, 200-1200 mesh heavy calcium carbonate and nanometer
The mixture of one or both of calcium carbonate.
Further, foam stabilizer is one of dimethicone and polyether modified silicon oil.
Further, auxiliary agent is one of organotin catalysts dibutyl tin dilaurate and coupling agent KH560 or two
The mixture of kind.
The preparation method of rock wool board bi-component solvent-free polyurethane adhesive, comprising the following steps:
Step 1 prepares polyol component and isocyanate component respectively:
It prepares polyol component: according to the mass percent of each raw material as described in the examples, taking polyether polyol, castor
Sesame oil polyalcohol, Sucrose polyethers polyalcohol, Paris white, calcium oxide powder, which are added in hybrid reactor, stirs 30min, mixed to powder
After closing, stirring 120min is vacuumized under vacuum degree > 0.9MPa state, is eventually adding foam stabilizer and auxiliary agent stirring 30min i.e.
Obtain polyol component；
Prepare isocyanate component: the mass percent of each raw material described in accordance with the claim 1 takes the more benzene of polymethylene
Based isocyanate and the mixing of polyether-modified methyl diphenylene diisocyanate are to get isocyanate component；
The polyol component prepared in step 1 and isocyanate component are the ratio of 4-6:1 by step 2 in mass ratio
It is uniformly mixed to get rock wool board solvent-free polyurethane adhesive.
Embodiment 2
A kind of rock wool board bi-component solvent-free polyurethane adhesive, the bi-component polyurethane adhesive is by polyol component
It is stirred evenly with isocyanate component.
Wherein, the composition of polyol component includes:
Wherein, the composition of isocyanate component includes:
Polymethylene multi-phenenyl isocyanate (polymeric MDI) 96%
Polyether-modified methyl diphenylene diisocyanate (modified MDI) 4%；
A kind of rock wool board bi-component solvent-free polyurethane adhesive, preparation method includes the following steps:
Step 1 prepares polyol component and isocyanate component respectively:
It prepares polyol component: according to the mass percent of each raw material as described in the examples, taking polyether polyol, castor
Sesame oil polyalcohol, Sucrose polyethers polyalcohol, Paris white, calcium oxide powder, which are added in hybrid reactor, stirs 30min, mixed to powder
It closes with after, starts to vacuumize stirring 120min under vacuum degree > 0.9MPa state, be eventually adding foam stabilizer and auxiliary agent stirring
30min is up to polyol component, viscosity 9000mPa.s；
It prepares isocyanate component: according to the mass percent of each raw material as described in the examples, taking polymethylene more
Phenyl isocyanate, polyether-modified methyl diphenylene diisocyanate mix up to isocyanate component；
Step 2 mixes the ratio that the polyol component prepared in step 1 and isocyanate component are 4:1 in mass ratio
It closes uniformly to get rock wool board solvent-free polyurethane adhesive, adhesive obtained can be bonded rock wool and marble slab, shearing
Intensity is up to 3-5MPa.
Embodiment 3
A kind of rock wool board bi-component solvent-free polyurethane adhesive, the bi-component polyurethane adhesive is by polyol component
It is configured with isocyanate component,
Wherein, the composition of polyol component includes:
Wherein, the composition of isocyanate component includes:
Polymethylene multi-phenenyl isocyanate (polymeric MDI) 95%
Polyether-modified methyl diphenylene diisocyanate (modified MDI) 5%；
A kind of rock wool board bi-component solvent-free polyurethane adhesive, preparation method includes the following steps:
Step 1 prepares polyol component and isocyanate component respectively:
It prepares polyol component: according to the mass percent of each raw material as described in the examples, taking polyether polyol, castor
Sesame oil polyalcohol, Sucrose polyethers polyalcohol, Paris white, which are added in hybrid reactor, stirs 30min, after powder mixing with after,
Start to vacuumize stirring 120min under vacuum degree > 0.9MPa state, is eventually adding auxiliary agent stirring 30min up to polyalcohol group
Point, viscosity 8000mPa.s；
It prepares isocyanate component: according to the mass percent of each raw material as described in the examples, taking polymethylene more
Phenyl isocyanate, polyether-modified methyl diphenylene diisocyanate mix to get isocyanate component；
Step 2 mixes the ratio that the polyol component prepared in step 1 and isocyanate component are 4:1 in mass ratio
It closes uniformly to get rock wool board solvent-free polyurethane adhesive, the adhesive of preparation can be bonded rock wool and metal plate, and shearing is strong
It spends up to 2-4MPa.
Embodiment 4
A kind of rock wool board bi-component solvent-free polyurethane adhesive, the bi-component polyurethane adhesive is by polyol component
It is configured with isocyanate component,
Wherein, the composition of polyol component includes:
Wherein, the composition of isocyanate component includes:
Polymethylene multi-phenenyl isocyanate (polymeric MDI) 94%
Polyether-modified methyl diphenylene diisocyanate (modified MDI) 6%；
A kind of rock wool board bi-component solvent-free polyurethane adhesive, preparation method includes the following steps:
Step 1 prepares polyol component and isocyanate component respectively:
It prepares polyol component: according to the mass percent of each raw material as described in the examples, taking polyether polyol, castor
Sesame oil polyalcohol, Sucrose polyethers polyalcohol, Paris white, which are added in hybrid reactor, stirs 30min, after powder mixing with after,
Start to vacuumize stirring 120min under vacuum degree > 0.9MPa state, is eventually adding foam stabilizer and auxiliary agent stirring 30min up to A
Polyol component, viscosity 10000mPas；
It prepares isocyanate component: according to the mass percent of each raw material as described in the examples, taking polymethylene more
Phenyl isocyanate, polyether-modified methyl diphenylene diisocyanate mix to get isocyanate component；
Step 2 mixes the ratio that the polyol component prepared in step 1 and isocyanate component are 6:1 in mass ratio
It closes uniformly up to rock wool board solvent-free polyurethane adhesive, the adhesive of preparation can be bonded rock wool and cement plate, and shearing is strong
It spends up to 1-3MPa.
Embodiment 5
A kind of rock wool board bi-component solvent-free polyurethane adhesive, the bi-component polyurethane adhesive is by polyol component
It is stirred evenly with isocyanate component.
Wherein, the composition of polyol component includes:
Wherein, the composition of isocyanate component includes:
Polymethylene multi-phenenyl isocyanate (polymeric MDI) 92%
Polyether-modified methyl diphenylene diisocyanate (modified MDI) 8%；
A kind of rock wool board bi-component solvent-free polyurethane adhesive, preparation method includes the following steps:
Step 1 prepares polyol component and isocyanate component respectively:
It prepares polyol component: according to the mass percent of each raw material as described in the examples, taking polyether polyol, castor
Sesame oil polyalcohol, Sucrose polyethers polyalcohol, Paris white, calcium oxide powder, which are added in hybrid reactor, stirs 30min, mixed to powder
It closes with after, starts to vacuumize stirring 120min under vacuum degree > 0.9MPa state, be eventually adding foam stabilizer and auxiliary agent stirring
30min is up to polyol component, viscosity 7000mPas；
It prepares isocyanate component: according to the mass percent of each raw material as described in the examples, taking polymethylene more
Phenyl isocyanate, polyether-modified methyl diphenylene diisocyanate mix to get isocyanate component；
The polyol component prepared in step 1 and the isocyanate component being 2. prepared be by step 2 in mass ratio
The ratio of 5:1 is uniformly mixed to get rock wool board solvent-free polyurethane adhesive, and the adhesive of preparation can be bonded rock wool and prevent
Fiery plate, shear strength is up to 3-5MPa.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention range, all in the present invention
Spirit and principle within, any modification, equivalent substitution, improvement and etc. done be somebody's turn to do included in protection scope of the present invention
Within.
Claims (7)
1. a kind of rock wool board bi-component solvent-free polyurethane adhesive, it is characterised in that: the bi-component polyurethane adhesive by
Polyol component and isocyanate component configure, and the weight ratio of polyol component and isocyanate component is 4~6: 1,
The raw material of the polyol component forms and the mass percent of each raw material, as described below:
The raw material of the isocyanate component forms and the mass percent of each raw material, as described below:
Polymethylene multi-phenenyl isocyanate 91-96%
Polyalcohol modified methyl diphenylene diisocyanate 4-9%.
2. rock wool board according to claim 1 bi-component solvent-free polyurethane adhesive, which is characterized in that the polyoxy
Changing propylene polyalcohol is the mixture that weight average molecular weight is one or both of polyoxypropylene polyol of 1000-3000,
Its hydroxyl value is 50-200mgKOH/g.
3. rock wool board according to claim 1 bi-component solvent-free polyurethane adhesive, which is characterized in that the sucrose
Polyether polyol is to make the polyether polyol of initiator with sucrose and glycerol, hydroxyl value 300-500mgKOH/g.
4. rock wool board according to claim 1 bi-component solvent-free polyurethane adhesive, which is characterized in that the carbonic acid
Calcium is one or both of 500-1500 mesh precipitated calcium carbonate powder, 200-1200 mesh heavy calcium carbonate and nanometer calcium carbonate
Mixture.
5. rock wool board according to claim 1 bi-component solvent-free polyurethane adhesive, which is characterized in that the even bubble
Agent is any one of dimethicone and polyether modified silicon oil.
6. rock wool board according to claim 1 bi-component solvent-free polyurethane adhesive, which is characterized in that the auxiliary agent
For the mixture of one or both of dibutyl tin dilaurate and KH560.
7. preparation method of the rock wool board described in -6 with bi-component solvent-free polyurethane adhesive according to claim 1, feature
Be, preparation method the following steps are included:
Step 1 prepares polyol component and isocyanate component respectively:
Prepare polyol component: the mass percent of each raw material described in accordance with the claim 1 takes polyether polyol, castor oil
Polyalcohol, Sucrose polyethers polyalcohol, Paris white, calcium oxide powder, which are added in hybrid reactor, stirs 30min, equal to powder mixing
Afterwards, stirring 120min is vacuumized under vacuum degree > 0.9MPa state, is eventually adding foam stabilizer and auxiliary agent stirring 30min to get more
First alkoxide component；
Prepare isocyanate component: the mass percent of each raw material described in accordance with the claim 1 takes polymethylene polyphenyl different
Cyanate and polyether-modified methyl diphenylene diisocyanate mix to get isocyanate component；
Step 2 mixes the ratio that the polyol component prepared in step 1 and isocyanate component are 4-6:1 in mass ratio
Uniformly to get rock wool board solvent-free polyurethane adhesive.
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| CN112724913B (en) * | 2020-12-15 | 2022-10-11 | 湖北南北车新材料有限公司 | Double-component polyurethane adhesive and preparation method thereof |
| CN113861926A (en) * | 2021-11-23 | 2021-12-31 | 上海灵啊实业有限公司 | Bi-component polyurethane adhesive and coffee grounds composition and preparation method thereof |
| CN114958280A (en) * | 2022-06-30 | 2022-08-30 | 中山市卡施力顿建材有限公司 | Bi-component rock plate adhesive and preparation method and application thereof |
| CN114958280B (en) * | 2022-06-30 | 2024-03-19 | 中山市卡施力顿建材有限公司 | Bi-component rock plate adhesive and preparation method and application thereof |
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Application publication date: 20191008 |