CN110272706A - A kind of room temperature curing refrigerator carriage board assembling structure glue and preparation method thereof - Google Patents
A kind of room temperature curing refrigerator carriage board assembling structure glue and preparation method thereof Download PDFInfo
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- CN110272706A CN110272706A CN201910512585.8A CN201910512585A CN110272706A CN 110272706 A CN110272706 A CN 110272706A CN 201910512585 A CN201910512585 A CN 201910512585A CN 110272706 A CN110272706 A CN 110272706A
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
-
- 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
- C08G18/4825—Polyethers containing two hydroxy groups
-
- 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
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- 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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- 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
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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)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention relates to a kind of room temperature curing refrigerator carriage board assembling structure glue, the structure glue is made of component A and B component, component A is the mixture of hydroxyl group, B component is the mixture containing-NCO group, when use, component A is used as curing agent, component A and B component by weight 100:15-25 after mixing as host agent, B component.The preparation of component A: according to corresponding proportion, polyether polyol, polycaprolactone polyol, active filler and thixotropic agent are put into high-speed multifunctional vacuum dispersion machine, it is stirred 2 hours with the revolving speed of 800-1000rpm, coupling agent is added, it is stirred 0.5 hour with the revolving speed of 1000-1200rpm, filtering and discharging obtains component A；B component preparation: polyisocyanates and modified MDI are stirred evenly and obtains B component according to corresponding proportion；Component A and B component 100:15-25 by weight are mixed, the structure glue is obtained.The present invention has many advantages, such as low temperature resistant, shock resistance and higher shear strength.
Description
Technical field
The invention mainly relates to a kind of structure glues, and in particular to a kind of room temperature curing refrigerator carriage board assembling structure glue, this
Invention belongs to adhesive preparation technical field.
Background technique
Van using aluminum corner brace, corner fittings riveting plus bonding mainly by the compound big board group of six pieces of sandwiches at being assembled into complete
Six face cabinets.Compartment board is covering+frame+core material+stressed-skin construction, and six face cabinets are assembled into using a kind of structural adhesive
Car body, it is desirable that structure glue intensity height, ambient temperature curable, while the structure glue high and low temperature resistance wants good, anti-shake performance is excellent
Different, steel is tough to be taken into account, and has preferable adhesive strength to various substrates, bonding range is wide.
Contain a large amount of polar group in adhesive for polyurethane molecule, such as: the very high isocyanate groups of activity (-
NCO) and carbamate groups (- NHCOO-), so it can have good adhesive property, therefore its with most of materials
Market application is quite extensive: dual-component polyurethane structure glue has excellent impact resistance, durability, fatigue durability, low temperature resistant
Property and fabulous adhesion strength and to become structure glue preferred.
Summary of the invention
The problem to be solved by the invention is to provide the refrigerator carriage board assembling structure glue that one kind is capable of normal temperature cure, glue
Connecing intensity wants height, lower temperature resistance to get well (- 60 DEG C), meets the low temperature resistant requirement of refrigeration carriage board, is easy constructing operation, manual frictioning
Facade is not sagging, and the operating time is moderate (100g, 25 DEG C, 1.0~1.5 hours), and curing time is moderate (under room temperature when initial solidification
Between 3~4 hours), 6~10MPa of shear strength.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of greenhouse solidification refrigerator carriage board assembling structure glue, is made of component A and B component, and the component A is containing hydroxyl
The mixture of base group, the hydroxyl value of the component A are 50-150mgKOH/g, viscosity 40000-100000mPa.s；It is described
B component be the mixture containing-NCO group, the nco value of the B component is 25-35%, viscosity 100-500mPa.s, is used
When, component A is used as curing agent, component A and B component by weight 100:15-25 after mixing as host agent, B component；
The component A includes the component of following parts by weight:
The curing agent B component includes the component of following parts by weight:
30~50 parts of polyisocyanates
10-30 parts of modified diphenylmethane diisocyanate (modified MDI).
The weight average molecular weight of the polyether polyol is 3000-6000, hydroxyl value 20-50mgKOH/g, degree of functionality 2-
3；The weight average molecular weight of polycaprolactone polyol is 2000-3000, hydroxyl value 200-400mgKOH/g, degree of functionality 2.
The active filler is one of active nano-calcium carbonate or active powdered whiting.
The thixotropic agent is one of fumed silica or organobentonite.
The coupling agent is one of KH550, KH560, KH570.
The polyisocyanates is one of polymeric MDI, liquefied mdi, is commercial goods.
The modification MDI is polyether-modified MDI, nco value 15-25%, viscosity 300-800mPa.s.
A kind of preparation method of room temperature curing refrigerator carriage board assembling structure glue, includes the following steps:
Step 1 prepares component A and B component respectively:
Prepare component A: according to the parts by weight of each raw material described in the part, polyether polyol, polycaprolactone is more
First alcohol, active filler and thixotropic agent are put into high-speed multifunctional vacuum dispersion machine, are stirred 2 hours with the revolving speed of 800-1000rpm,
Then coupling agent is added, is stirred 0.5 hour with the revolving speed of 1000-1200rpm, filtering and discharging obtains component A；
It prepares B component: according to the parts by weight of a raw material described in the part, polyisocyanates and modified MDI being mixed
It closes, stirs evenly and obtain B component；
The component A being prepared in step 1 and B component 100:15-25 by weight are mixed, obtain room by step 2
Temperature solidification refrigerator carriage board assembling structure glue.
Compared with prior art, the invention has the following advantages that
(1) present invention substitutes common polyether polyalcohol using high molecular weight polyether, and the product guaranteed has
Preferable resistance to low temperature, while improving the shock resistance of product；
(2) polycaprolactone polyol, with higher shear strength all very outstanding to the bonding force of various metals is added；
(3) polyether-modified MDI is used, improves the curing rate of product, room temperature and heating can reach very high and cut
Shearing stress.
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 room temperature curing refrigerator carriage board assembling structure glue, the component A by the group Han-OH and the B group containing-NCO group
It is grouped as, in use, component A is host agent, B component is that curing agent, component A and B component mix by weight 100:15~25
It is used after even；
The component A includes the component of following parts by weight:
The curing agent B component includes the component of following parts by weight:
30~50 parts of polyisocyanates
It is MDI 10-30 parts modified；
Further, the hydroxyl value of component A is 50-150mgKOH/g, viscosity 40000-100000mPa.s；B component
Nco value is 25-35%, viscosity 100-500mPa.s.
Further, the weight average molecular weight of polyether polyol is 3000-6000, hydroxyl value 20-50mgKOH/g, degree of functionality
For 2-3；The weight average molecular weight of polycaprolactone polyol is 2000-3000, hydroxyl value 200-400mgKOH/g, degree of functionality 2.
Further, active filler is one of active nano-calcium carbonate or active powdered whiting.
Further, thixotropic agent is one of fumed silica or organobentonite.
Further, one of coupling agent KH550, KH560, KH570.
Further, polyisocyanates is one of polymeric MDI, liquefied mdi, is commercial goods.
Further, modified MDI is polyether-modified MDI, nco value 15-25%, viscosity 300-800mPa.s.
A kind of preparation method of room temperature curing refrigerator carriage board assembling structure glue, includes the following steps:
Step 1 prepares component A and B component respectively:
Prepare component A: according to the parts by weight of each raw material described in the present embodiment, by high molecular weight polyether,
Polycaprolactone polyol, active filler and thixotropic agent are put into high-speed multifunctional vacuum dispersion machine, with the revolving speed of 800-1000rpm
Stirring 2 hours, is then added coupling agent, is stirred 0.5 hour with the revolving speed of 1000-1200rpm, filtering and discharging obtains component A；
Prepare B component: according to the parts by weight of each raw material described in the present embodiment, by polyisocyanates and modified MDI
Mixing, stirs evenly and obtains B component；
The component A being prepared in step 1 and B component 100:15-25 by weight are uniformly mixed, are obtained by step 2
Gum deposit is assembled to room temperature curing refrigeration carriage board.
Embodiment 2
A kind of room temperature curing refrigerator carriage board assembling structure glue, the component A by the group Han-OH and the B group containing-NCO group
It is grouped as, in use, component A is host agent, B component is that curing agent, component A and B component mix by weight 100:15~25
It is used after even；
The component A includes the component of following parts by weight:
The curing agent B component includes the component of following parts by weight:
38~45 parts of polyisocyanates
It is MDI 18-25 parts modified；
Further, the hydroxyl value of component A is 50-150mgKOH/g, viscosity 40000-100000mPa.s；B component
Nco value is 25-35%, viscosity 100-500mPa.s.
Further, the weight average molecular weight of polyether polyol is 4000-5000, hydroxyl value 20-50mgKOH/g, degree of functionality
For 2-3；The weight average molecular weight of polycaprolactone polyol is 2000-3000, hydroxyl value 200-400mgKOH/g, degree of functionality 2.
Further, active filler is one of active nano-calcium carbonate or active powdered whiting.
Further, thixotropic agent is one of fumed silica or organobentonite.
Further, one of coupling agent KH550, KH560, KH570.
Further, polyisocyanates is one of polymeric MDI, liquefied mdi, is commercial goods.
Further, modified MDI is polyether-modified MDI, nco value 15-25%, viscosity 300-800mPa.s.
A kind of preparation method of room temperature curing refrigerator carriage board assembling structure glue, includes the following steps:
Step 1 prepares component A and B component respectively:
Prepare component A: according to the parts by weight of each raw material described in the present embodiment, by high molecular weight polyether,
Polycaprolactone polyol, active filler and thixotropic agent are put into high-speed multifunctional vacuum dispersion machine, with the revolving speed of 800-1000rpm
Stirring 2 hours, is then added coupling agent, is stirred 0.5 hour with the revolving speed of 1000-1200rpm, filtering and discharging obtains component A；
Prepare B component: according to the parts by weight of each raw material described in the present embodiment, by polyisocyanates and modified MDI
Mixing, stirs evenly and obtains B component；
The component A being prepared in step 1 and B component 100:15-25 by weight are uniformly mixed, are obtained by step 2
Gum deposit is assembled to room temperature curing refrigeration carriage board.
Embodiment 3
A kind of room temperature curing refrigerator carriage board assembling structure glue, the component A by the group Han-OH and the B group containing-NCO group
It is grouped as；
Host agent component A includes the component of following parts by weight:
Curing agent B component includes the component of following parts by weight:
45 parts of polymeric MDI
15 parts of polyether-modified MDI；
A kind of preparation method of room temperature curing refrigerator carriage board assembling structure glue, includes the following steps:
Step 1 prepares component A and B component respectively:
Prepare component A: according to the parts by weight of each raw material described in the present embodiment, by polyether Glycols (Weight-average molecular
Amount is 4000), polycaprolactone diols (weight average molecular weight 2000), that active nano-calcium carbonate and fumed silica are put into high speed is more
In function vacuum dispersion machine, is stirred 2 hours with the revolving speed of 800-1000rpm, KH-550 is added, then with 1000-1200rpm's
Revolving speed stirs 0.5 hour, filtering and discharging, obtains component A, and the viscosity of component A obtained is 83000mPa.s；
It prepares B component: according to the parts by weight of each raw material described in the present embodiment, polymeric MDI and modified MDI being mixed
It closes, stirs evenly and obtain B component, the viscosity that B component is made is 300mPa.s；
The component A being prepared in step 1 and B component 100:16 by weight are mixed, obtain room temperature by step 2
Solidify refrigerator carriage board assembling structure glue, at 25 DEG C, working life 80min, just the time is 3h35min, shear strength admittedly
8.2MPa(GB/T7124-2008)。
Embodiment 4
A kind of room temperature curing refrigerator carriage board assembling structure glue, the component A by the group Han-OH and the B group containing-NCO group
It is grouped as；
Host agent component A includes the component of following parts by weight:
Curing agent B component includes the component of following parts by weight:
40 parts of polymeric MDI
20 parts of polyether-modified MDI；
A kind of preparation method of room temperature curing refrigerator carriage board assembling structure glue, includes the following steps:
Step 1 prepares component A and B component respectively:
Prepare component A: according to the parts by weight of each raw material described in the present embodiment, by polyether-tribasic alcohol (Weight-average molecular
Amount is 5000), polycaprolactone diols (weight average molecular weight 2000), that active nano-calcium carbonate and fumed silica are put into high speed is more
In function vacuum dispersion machine, is stirred 2 hours with the revolving speed of 800-1000rpm, KH-560 is added, then with 1000-1200rpm's
Revolving speed stirs 0.5 hour, filtering and discharging, obtains component A, and the viscosity of component A obtained is 70000mPa.s；
Prepare B component: according to the parts by weight of each raw material described in the present embodiment, by polymeric MDI and polyether-modified MDI
Mixing, stirs evenly and obtains B component, and the viscosity that B component is made is 350mPa.s；
Component A in step 1 and B component 100:20 by weight are mixed, obtain room temperature curing refrigerator car by step 2
Carriage package assembly glue, at 25 DEG C, working life 70min just consolidates time 3h15min, shear strength 9.0MPa (GB/T7124-
2008)。
Embodiment 5
A kind of room temperature curing refrigerator carriage board assembling structure glue, the component A by the group Han-OH and the B group containing-NCO group
It is grouped as；
Host agent component A includes the component of following parts by weight:
Curing agent B component includes the component of following parts by weight:
35 parts of liquefied mdi
25 parts of polyether-modified MDI；
Step 1 prepares component A and B component respectively:
Prepare component A: according to the parts by weight of each raw material described in the present embodiment, by polyether-tribasic alcohol (Weight-average molecular
Amount is 5000), polycaprolactone diols (weight average molecular weight 2000), that active nano-calcium carbonate and fumed silica are put into high speed is more
In function vacuum dispersion machine, is stirred 2 hours with the revolving speed of 800-1000rpm, KH-570 is added, then with 1000-1200rpm's
Revolving speed stirs 0.5 hour, filtering and discharging, obtains component A, and the viscosity of component A obtained is 60000mPa.s；
Prepare B component: according to the parts by weight of each raw material described in the present embodiment, by liquefied mdi and polyether-modified MDI
Mixing, stirs evenly and obtains B component, and the viscosity that B component is made is 200mPa.s；
The component A being prepared in step 1 and B component 100:22 by weight are mixed, obtain room temperature by step 2
Solidify refrigerator carriage board assembling structure glue, at 25 DEG C, working life 90min just consolidates time 3h50min, shear strength 6.8MPa
(GB/T7124-2008)。
Embodiment 6
A kind of room temperature curing refrigerator carriage board assembling structure glue, the component A by the group Han-OH and the B group containing-NCO group
It is grouped as；
Host agent component A includes the component of following parts by weight:
Curing agent B component includes the component of following parts by weight:
32 parts of liquefied mdi
28 parts of polyether-modified MDI；
A kind of preparation method of room temperature curing refrigerator carriage board assembling structure glue, includes the following steps:
Step 1 prepares component A and B component respectively:
Prepare component A: according to the parts by weight of each raw material described in the present embodiment, by polyether-tribasic alcohol (Weight-average molecular
Amount is 4000), polycaprolactone diols (weight average molecular weight 3000), that active powdered whiting and fumed silica are put into high speed is more
In function vacuum dispersion machine, is stirred 2 hours with the revolving speed of 800-1000rpm, KH-560 is added, then with 1000-1200rpm's
Revolving speed stirs 0.5 hour, filtering and discharging, obtains component A, and the viscosity of component A obtained is 48000mPa.s；
Prepare B component: according to the parts by weight of each raw material described in the present embodiment, by liquefied mdi and polyether-modified MDI
Mixing, stirs evenly and obtains B component, and the viscosity that B component is made is 300mPa.s；
The component A being prepared in step 1 and B component 100:24 by weight are mixed, obtain room temperature by step 2
Solidify refrigerator carriage board assembling structure glue, at 25 DEG C, working life 65min just consolidates time 3h15min, shear strength 7.2MPa
(GB/T7124-2008)。
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
The technical solution as composed by the above technical characteristic equivalent replacement.Unaccomplished matter of the invention, belongs to those skilled in the art's
Common knowledge.
Claims (8)
1. a kind of greenhouse solidifies refrigerator carriage board assembling structure glue, which is characterized in that be made of component A and B component, the A
Group is divided into the mixture of hydroxyl group, and the hydroxyl value of the component A is 50-150mgKOH/g, viscosity 40000-
100000mPa.s；The B component is the mixture containing-NCO group, and the nco value of the B component is 25-35%, and viscosity is
100-500mPa.s, in use, component A is as host agent, B component is as curing agent, and component A and B component are by weight 100:15-
25 use after mixing；
The component A includes the component of following parts by weight:
The curing agent B component includes the component of following parts by weight:
30~50 parts of polyisocyanates
Modified 10~30 parts of MDI.
2. greenhouse according to claim 1 solidifies refrigerator carriage board assembling structure glue, which is characterized in that the polyethers is more
The weight average molecular weight of first alcohol is 3000-6000, hydroxyl value 20-50mgKOH/g, degree of functionality 2-3；The weight of polycaprolactone polyol
Average molecular weight is 2000-3000, hydroxyl value 200-400mgKOH/g, degree of functionality 2.
3. greenhouse according to claim 1 solidifies refrigerator carriage board assembling structure glue, which is characterized in that the activity is filled out
Material is one of active nano-calcium carbonate or active powdered whiting.
4. room temperature curing refrigerator carriage board assembling structure glue according to claim 1, which is characterized in that the thixotropic agent
For one of fumed silica or organobentonite.
5. room temperature curing refrigerator carriage board assembling structure glue according to claim 1, which is characterized in that the coupling agent
For one of KH550, KH560, KH570.
6. room temperature curing refrigerator carriage board assembling structure glue according to claim 1, which is characterized in that the polyisocyanate cyanogen
Acid esters is one of polymeric MDI, liquefied mdi, is commercial goods.
7. room temperature curing refrigerator carriage board assembling structure glue according to claim 1, which is characterized in that the modification
MDI is polyether-modified MDI, nco value 15-25%, viscosity 300-800mPa.s.
8. the preparation method of room temperature curing refrigerator carriage board assembling structure glue according to claim 1-7, special
Sign is, includes the following steps:
Step 1 prepares component A and B component respectively:
Prepare component A: according to the mass fraction of each raw material described in claim 1, by polyether polyol, polycaprolactone polyol
Alcohol, active filler and thixotropic agent are put into high-speed multifunctional vacuum dispersion machine, with revolving speed stirring 2 hours of 800-1000rpm, so
After coupling agent is added, stirred 0.5 hour with the revolving speed of 1000-1200rpm, filtering and discharging obtains component A；
Prepare B component；According to the mass fraction of each raw material described in claim 1, polyisocyanates and modified MDI are mixed
It closes, stirs evenly and obtain B component；
Step 2 mixes a kind of component A being prepared of step and B component 100:15-25 by weight, obtains described
Room temperature curing refrigerator carriage board assembling structure glue.
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| CN201910512585.8A CN110272706A (en) | 2019-06-13 | 2019-06-13 | A kind of room temperature curing refrigerator carriage board assembling structure glue and preparation method thereof |
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| 杨祖彬，戴宏民编著: "《绿色包装印刷工艺及材料》", 31 January 2009, 印刷工业出版社 * |
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