CN108219097A - A kind of monocomponent polyurethane foamed glue and preparation method thereof - Google Patents
A kind of monocomponent polyurethane foamed glue and preparation method thereof Download PDFInfo
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- CN108219097A CN108219097A CN201611153489.1A CN201611153489A CN108219097A CN 108219097 A CN108219097 A CN 108219097A CN 201611153489 A CN201611153489 A CN 201611153489A CN 108219097 A CN108219097 A CN 108219097A
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- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6611—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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- 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
- C08G18/4808—Mixtures of two or more polyetherdiols
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- 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
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- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having at least three hydroxy groups
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- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
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- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
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- C08G18/6644—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
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- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
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- C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- 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
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- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
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- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
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- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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Abstract
The invention discloses a kind of monocomponent polyurethane foamed glues and preparation method thereof, include following component according to the mass fraction：30~100 parts of polyether polyol and/or polyester polyol, 0.5~5 part of crosslinking agent, 1~15 part of pore-creating agent, 0.5~10 part of fume colloidal silica, 1~3 part of foam stabiliser, 0.2~5 part of catalyst, 1~10 part of supercritical fluid, 30~150 parts of polyisocyanates.The present invention has merged supercritical foaming technique and monocomponent polyurethane foaming technique, the supercritical fluid of the present invention is as a kind of completely new environment-friendly adhesive, so that the monocomponent polyurethane foamed glue prepared has the double dominant that abscess is fine and close, frothing percentage is high, will be used widely in the high occasion of desired strength.
Description
Technical field
The present invention relates to chemical material the field of polymers more particularly to a kind of monocomponent polyurethane foamed glue and its preparation sides
Method.
Background technology
Monocomponent polyurethane foamed glue can be used at gap and the hole of finishing material parts, it is filled, is close
Envelope and bonding.It is using the micro-moisture in air as crosslinking accelerator, is solidified into elastic stage at room temperature, has bonding force
By force, elasticity it is good, insulation, high temperature resistant and it is cold-resistant the advantages of, higher adhesiveness is respectively provided with to general constructional ornamental material, therefore
Polyurethane foam glue is widely used.But product on the market is mostly using hazardous solvents such as dichloromethane now, and
And it is odorous, so limiting its application.
Invention content
The technical problems to be solved by the invention are in order to which existing polyurethane foam glue is overcome to cause using hazardous solvent
Product environmental performance is low, there are the defects of smell, providing a kind of monocomponent polyurethane foamed glue and preparation method thereof, the present invention
The monocomponent polyurethane foamed glue good environmental protection of offer, and the performances such as its dimensional stability, adhesive strength can meet city
Process requirements on field.
There is provided a kind of monocomponent polyurethane foamed glues for one of technical scheme of the present invention, include according to the mass fraction such as
Lower component：30~100 parts of polyether polyol and/or polyester polyol, 0.5~5 part of crosslinking agent, 1~15 part of pore-creating agent, 0.5~
10 parts of fume colloidal silicas, 1~3 part of foam stabiliser, 0.2~5 part of catalyst, 1~10 part of supercritical fluid, 30~150 parts
Polyisocyanates.
Preferably, in the present invention, the monocomponent polyurethane foamed glue is made of according to the mass fraction following component：30
~100 parts of polyether polyol and/or polyester polyol, 0.5~5 part of crosslinking agent, 1~15 part of pore-creating agent, 0.5~10 part of vapor phase method
White carbon, 1~3 part of foam stabiliser, 0.2~5 part of catalyst, 1~10 part of supercritical fluid, 30~150 parts of polyisocyanates.
Preferably, in the present invention, the monocomponent polyurethane foamed glue includes following component according to the mass fraction：75~
100 parts of polyether polyol and/or polyester polyol, 1~5 part of crosslinking agent, 5~10 parts of pore-creating agents, 2~5 parts of fume colloidal silicas,
1~3 part of foam stabiliser, 3~5 parts of catalyst, 4~10 parts of supercritical fluids, 50~120 parts of polyisocyanates.
In the present invention, the polyether polyol is the polyether polyol of this field routine, preferably, the polyethers is more
The degree of functionality of first alcohol is 2~4, and average relative molecular mass is 2000~6000, and hydroxyl value is 34~800mgKOH/g.
Wherein, the polyether polyol is preferably polyether polyol 330N, polyether polyol 305, polyether polyol
220th, it is one or more in polyether polyol 204, polyether polyol 310 and polyether polyol 3050D；The polyether polyols
The degree of functionality of alcohol 330N is 3, hydroxyl value 34mgKOH/g；The degree of functionality of the polyether polyol 305 is 3, hydroxyl value is
336mgKOH/g；The degree of functionality of the polyether polyol 220 is 2, hydroxyl value 56mgKOH/g；The polyether polyol 204
Degree of functionality be 2, hydroxyl value 280mgKOH/g；The degree of functionality of the polyether polyol 310 is 3, hydroxyl value 168mgKOH/g；
The degree of functionality of the polyether polyol 3050D is 3, hydroxyl value 56mgKOH/g.
In the present invention, the polyester polyol is the polyester polyol of this field routine, preferably, the polyester is more
The degree of functionality of first alcohol is 2~4, and average relative molecular mass is 2000~6000, and hydroxyl value is 100~800mgKOH/g.
Wherein, the polyester polyol is preferably polyester polyol PE-2010, polyester polyol PE-2320 and gathers
It is one or more in ester polyol PE-2020；The degree of functionality of the polyester polyol PE-2010 is 2, hydroxyl value is
112mgKOH/g；The degree of functionality of the polyester polyol PE-2320 is 2, hydroxyl value 56mgKOH/g；The polyester polyols
The degree of functionality of alcohol PE-2020 is 2, hydroxyl value 56mgKOH/g.
In the present invention, the crosslinking agent is the crosslinking agent of this field routine, preferably, the crosslinking agent is three hydroxyl first
Base propane or 1,4- butanediols.
In the present invention, the pore-creating agent is the pore-creating agent of this field routine, preferably, the pore-creating agent is Degussa
The Ortegol 510 of company, Niax L-6164 and the Niax L-6188 of organosilicon Co., Ltd of GE Toshiba and South Korea SKC plants of formula
It is one or more in the Yukol 8331 of commercial firm.
In the present invention, the fume colloidal silica is the fume colloidal silica of this field routine, preferably, the gas
Phase method white carbon is hydrophabic silica.
In the present invention, the foam stabiliser is the foam stabiliser of this field routine, preferably, the surface is lived
Property agent be the Silbyk TP 3799 of BUK chemical companies of Germany, the DC-193 of U.S. Air Products and GE companies of the U.S.
It is one or more in SC-54.
In the present invention, the catalyst is the catalyst of this field routine, preferably, the catalyst is double morpholines
Base Anaesthetie Ether and/or dibutyl tin laurate.
In the present invention, the polyisocyanates is the polyisocyanates of this field routine, preferably, the polyisocyanate cyanogen
Acid esters is more methylenebis phenyl isocyanates, and NCO% 31%-33%, percentage is mass percent.
In the present invention, the supercritical fluid is the supercritical fluid of this field routine, preferably, described is overcritical
Fluid is supercritical carbon dioxide and/or supercritical nitrogen.
The two of technical scheme of the present invention there is provided a kind of preparation method of above-mentioned monocomponent polyurethane foamed glue, including
Following steps：
(1) by mass fraction by polyether polyol and/or polyester polyol, crosslinking agent, pore-creating agent, fume colloidal silica,
Foam stabiliser, catalyst are uniformly mixed, and obtain white material, then pour into the white material being uniformly mixed in inhalator jar；
(2) polyisocyanates is circulated by mass fraction in the inhalator jar expected in vain for filling and mixing；
(3) supercritical fluid is pumped into inhalator jar by mass fraction, shaken up, cover valve.
In the present invention, the pressure of the supercritical fluid described in step (3) is conventional for this field, preferably 4~23MPa,
More preferably it is 5~22MPa.
In the present invention, the speed that is pumped into of the supercritical fluid described in step (3) is that this field is conventional, preferably 40~
80ccm/s is more preferably 60ccm/s.
On the basis of common knowledge of the art, above-mentioned each optimum condition can be combined arbitrarily to get each preferable reality of the present invention
Example.
Other reagents and raw material used in the present invention are commercially available.
The positive effect of the present invention is：The present invention has merged supercritical foaming technique and has foamed with monocomponent polyurethane
Technology, supercritical fluid of the invention is as a kind of completely new environment-friendly adhesive so that the monocomponent polyurethane foamed glue of preparation
With the double dominant that abscess is fine and close, frothing percentage is high, will be used widely in the high occasion of desired strength.
Specific embodiment
It is further illustrated the present invention below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.Test method without specific conditions in the following example, according to conventional methods and conditions or according to quotient
Product specification selects.
In following embodiments：
The computational methods of coefficient of foaming is calculate according to volume expansion；
The computational methods of expansion density are carried out according to density measurement method；
The test method of foam compression strength is GB/T 20467-2006；
Adhesive strength test method is GB/T 9641-1988.
In following embodiments, the source for the part material being related to is：
Foam stabiliser Silbyk TP 3799 are purchased from German BUK chemical companies；
Foam stabiliser DC-193 is purchased from U.S. Air Products；
Foam stabiliser SC-54 is purchased from GE companies of the U.S.；
Pore-creating agent Ortegol 510 is purchased from goldschmidt chemical corporation；
Pore-creating agent Niax L-6164 are purchased from organosilicon Co., Ltd of GE Toshiba；
Pore-creating agent Niax L-6188 are purchased from organosilicon Co., Ltd of GE Toshiba；
Pore-creating agent Yukol 8331 is purchased from SKC Limited of South Korea；
In following embodiments, the other reagents and raw material being related to are commercially available, wherein, involved specific polyethers/
The parameter of polyester polyol is as follows：
The degree of functionality of polyether polyol 330N is 3, hydroxyl value 34mgKOH/g；
The degree of functionality of polyether polyol 305 is 3, hydroxyl value 336mgKOH/g；
The degree of functionality of polyether polyol 220 is 2, hydroxyl value 56mgKOH/g；
The degree of functionality of polyether polyol 204 is 2, hydroxyl value 280mgKOH/g；
The degree of functionality of polyether polyol 310 is 3, hydroxyl value 168mgKOH/g；
The degree of functionality of polyether polyol 3050D is 3, hydroxyl value 56mgKOH/g；
The degree of functionality of polyester polyol PE-2010 is 2, hydroxyl value 112mgKOH/g；
The degree of functionality of polyester polyol PE-2320 is 2, hydroxyl value 56mgKOH/g；
The degree of functionality of polyester polyol PE-2020 is 2, hydroxyl value 56mgKOH/g.
Embodiment 1
A kind of monocomponent polyurethane foamed glue is present embodiments provided, including following component：60 parts of polyether polyol 330N,
30 parts of polyether polyol, 305,10 parts of polyester polyol PE-2010,5 parts of trimethylolpropanes, 10 parts of Niax L-6164,2 parts of gas
Phase method white carbon, 2 parts of SC-54,2.5 parts of dual-morpholinyl diethyl ethers, 0.5 part of dibutyl tin laurate, phenyl first more than 80 parts
The supercritical carbon dioxide that alkane diisocyanate, 5 parts of pressure are 5Mpa.
The preparation method of above-mentioned monocomponent polyurethane foamed glue is：
(1) by mass fraction by polyether polyol 330N, polyether polyol 305, polyester polyol PE-2010, Niax L-
6164th, fume colloidal silica, SC-54, dual-morpholinyl diethyl ether and dibutyl tin laurate are uniformly mixed, and obtain white material；Make
The white material is poured into inhalator jar with inhalator jar equipment；
(2) more methylenebis phenyl isocyanates are circulated into inhalator jar by mass fraction；
(3) supercritical carbon dioxide fluid is pumped into the speed of 60ccm/s in inhalator jar by mass fraction, shaken up,
.
Embodiment 2
A kind of monocomponent polyurethane foamed glue is present embodiments provided, including following component：30 parts of polyether polyol 220,
45 parts of polyether polyol, 204,15 parts of polyester polyol PE-2320,5 part of 1,4 butanediol, 5 parts of Niax L-5154,4 parts of vapor phase methods
White carbon, 1 part of SC-54,3 parts of dual-morpholinyl diethyl ethers, 1 part of dibutyl tin laurate, two isocyanide of phenylmethane more than 50 parts
The supercritical nitrogen that acid esters, 6 parts of pressure are 5Mpa.
The preparation method is the same as that of Example 1 for the monocomponent polyurethane foamed glue of the present embodiment.
Embodiment 3
A kind of monocomponent polyurethane foamed glue is present embodiments provided, including following component：15 parts of polyether polyol 310,
50 parts of polyether polyol 3050D, 5 parts of polyester polyol PE-2020,2.5 part of 1,4 butanediol, 8 parts of Niax L-5154,5 parts of gas
Phase method white carbon, 3 parts of SC-54,3.5 parts of dual-morpholinyl diethyl ethers, 1.5 parts of dibutyl tin laurates, phenyl first more than 80 parts
Alkane diisocyanate, 4 parts of pressure are 14Mpa supercritical carbon dioxides.
The preparation method is the same as that of Example 1 for the monocomponent polyurethane foamed glue of the present embodiment.
Embodiment 4
A kind of monocomponent polyurethane foamed glue is present embodiments provided, including following component：10 parts of polyether polyol 305,
15 parts of 310,20 parts of polyether polyol, 220,20 parts of polyether polyol polyether polyol 3050D, 35 parts of polyether polyol 330N, 1
Part trimethylolpropane, 7 parts of Niax L-5154,4 parts of fume colloidal silicas, 3 parts of SC-54,4 parts of dual-morpholinyl diethyl ethers, 1
The supercritical carbon dioxide that part dibutyl tin laurate, methylenebis phenyl isocyanate more than 120 parts, 10 parts of pressure are 22Mpa.
The preparation method is the same as that of Example 1 for the monocomponent polyurethane foamed glue of the present embodiment.
Comparative example 1
This comparative example provides a kind of monocomponent polyurethane foamed glue, including following component：10 parts of polyether polyol
305th, 15 parts of 310,20 parts of polyether polyol, 220,20 parts of polyether polyol polyether polyol 3050D, 35 parts of polyether polyol
330N, 5 parts of trimethylolpropanes, 7 parts of Niax L-5154,4 parts of fume colloidal silicas, 3 parts of SC-54,4 parts of double morpholinyl diethyls
Base ether, 1 part of dibutyl tin laurate, methylenebis phenyl isocyanate more than 120 parts, 50 parts of HCFC-141b.
The preparation method of the monocomponent polyurethane of this comparative example is：
(1) polyether polyol 305, polyether polyol 310, polyether polyol 220, polyether polyol 3050D, polyether polyols
It is alcohol 330N, polypropylene oxide-ethylene oxide copolyether, fume colloidal silica, polysiloxanes-oxyalkylene block copolymer, double
It is poured into inhalator jar using inhalator jar equipment after morpholinyl Anaesthetie Ether, dibutyl tin laurate mixing；
(2) more methylenebis phenyl isocyanates are circulated into inhalator jar by mass fraction；
(3) HCFC-141b is injected in inhalator jar by mass fraction, shaken up.
The performance of one-component foamed glue prepared by the various embodiments described above is as shown in table 1：
The performance of one-component foamed glue prepared by 1 each embodiment of table
Claims (10)
1. a kind of monocomponent polyurethane foamed glue, which is characterized in that it includes following component according to the mass fraction：30~100 parts
Polyether polyol and/or polyester polyol, 0.5~5 part of crosslinking agent, 1~15 part of pore-creating agent, 0.5~10 part of fume colloidal silica,
1~3 part of foam stabiliser, 0.2~5 part of catalyst, 1~10 part of supercritical fluid, 30~150 parts of polyisocyanates.
2. monocomponent polyurethane foamed glue as described in claim 1, which is characterized in that it includes such as the following group according to the mass fraction
Part：75~100 parts of polyether polyol and/or polyester polyol, 1~5 part of crosslinking agent, 5~10 parts of pore-creating agents, 2~5 parts of vapor phase methods
White carbon, 1~3 part of foam stabiliser, 3~5 parts of catalyst, 4~10 parts of supercritical fluids, 50~120 parts of polyisocyanates.
3. monocomponent polyurethane foamed glue as claimed in claim 1 or 2, which is characterized in that the official of the polyether polyol
Energy degree is 2~4, and average relative molecular mass is 2000~6000, and hydroxyl value is 34~800mgKOH/g；
And/or the degree of functionality of the polyester polyol is 2~4, average relative molecular mass is 2000~6000, hydroxyl value 100
~800mgKOH/g；
And/or the crosslinking agent is trimethylolpropane or 1,4-butanediol；
And/or the fume colloidal silica is hydrophabic silica；
And/or the catalyst is dual-morpholinyl diethyl ether and/or dibutyl tin laurate；
And/or the pore-creating agent is the Ortegol 510 of goldschmidt chemical corporation, the Niax L- of organosilicon Co., Ltd of GE Toshiba
It is one or more in 6164 and Niax L-6188 and the Yukol of SKC Limited of South Korea 8331；
And/or Silbyk TP 3799, the U.S. Air Products that the foam stabiliser is BUK chemical companies of Germany
DC-193 and GE companies of the U.S. SC-54 in it is one or more.
4. monocomponent polyurethane foamed glue as claimed in claim 1 or 2, which is characterized in that the polyisocyanates is more
Methylenebis phenyl isocyanate, NCO% 31%-33%, percentage are mass percent.
5. monocomponent polyurethane foamed glue as claimed in claim 1 or 2, which is characterized in that the supercritical fluid is super
Critical carbon dioxide and/or supercritical nitrogen.
6. monocomponent polyurethane foamed glue as claimed in claim 3, which is characterized in that the polyether polyol is more for polyethers
First alcohol 330N, polyether polyol 305, polyether polyol 220, polyether polyol 204, polyether polyol 310 and polyether polyol
It is one or more in 3050D；The polyester polyol is polyester polyol PE-2010, polyester polyol PE-2320 and gathers
It is one or more in ester polyol PE-2020.
7. monocomponent polyurethane foamed glue as claimed in claim 6, which is characterized in that the official of the polyether polyol 330N
Energy degree is 3, hydroxyl value 34mgKOH/g；
And/or the degree of functionality of the polyether polyol 305 is 3, hydroxyl value 336mgKOH/g；
And/or the degree of functionality of the polyether polyol 220 is 2, hydroxyl value 56mgKOH/g；
And/or the degree of functionality of the polyether polyol 204 is 2, hydroxyl value 280mgKOH/g；
And/or the degree of functionality of the polyether polyol 310 is 3, hydroxyl value 168mgKOH/g；
And/or the degree of functionality of the polyether polyol 3050D is 3, hydroxyl value 56mgKOH/g；
And/or the degree of functionality of the polyester polyol PE-2010 is 2, hydroxyl value 112mgKOH/g；
And/or the degree of functionality of the polyester polyol PE-2320 is 2, hydroxyl value 56mgKOH/g；
And/or the degree of functionality of the polyester polyol PE-2020 is 2, hydroxyl value 56mgKOH/g.
8. such as the preparation method of claim 1~7 any one of them monocomponent polyurethane foamed glue, include the following steps：
(1) by mass fraction by polyether polyol and/or polyester polyol, crosslinking agent, pore-creating agent, fume colloidal silica, foam
Stabilizer, catalyst are uniformly mixed, and obtain white material, then pour into the white material being uniformly mixed in inhalator jar；
(2) polyisocyanates is circulated by mass fraction in the inhalator jar expected in vain for filling and mixing；
(3) supercritical fluid is pumped into inhalator jar by mass fraction, shaken up, cover valve.
9. preparation method as claimed in claim 8, which is characterized in that the pressure of the supercritical fluid described in step (3) for 4~
23MPa, preferably 5~22MPa.
10. preparation method as claimed in claim 9, which is characterized in that supercritical fluid described in step (3) is pumped into speed
For 40~80ccm/s, preferably 60ccm/s.
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| CN109988539A (en) * | 2019-04-11 | 2019-07-09 | 福建省优泥墙体工程服务有限公司 | A kind of stripping and slicing brick adhesive glue |
| CN110183606A (en) * | 2019-05-31 | 2019-08-30 | 李学友 | A kind of mono-component polyurethane micro-foaming material and method with strong adhesive property |
| CN112521904A (en) * | 2020-12-01 | 2021-03-19 | 山东赛高新材料有限公司 | Low-temperature-resistant and flame-retardant single-component polyurethane foam adhesive and preparation method thereof |
| CN112662363A (en) * | 2020-12-14 | 2021-04-16 | 山东一诺威新材料有限公司 | Polyurethane material for fence anchoring and preparation method thereof |
| CN112795356A (en) * | 2020-12-30 | 2021-05-14 | 徐州和成建材科技有限公司 | Polyurethane foaming adhesive and application thereof |
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| CN109628052A (en) * | 2018-11-01 | 2019-04-16 | 保定赞伯商贸有限公司 | A kind of polyurethane gap filler and preparation method thereof |
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| CN112662363A (en) * | 2020-12-14 | 2021-04-16 | 山东一诺威新材料有限公司 | Polyurethane material for fence anchoring and preparation method thereof |
| CN112795356A (en) * | 2020-12-30 | 2021-05-14 | 徐州和成建材科技有限公司 | Polyurethane foaming adhesive and application thereof |
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