CN108047645A - The melamine foams that a kind of isophorone diisocyanate using sealing end is prepared as curing agent - Google Patents
The melamine foams that a kind of isophorone diisocyanate using sealing end is prepared as curing agent Download PDFInfo
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- CN108047645A CN108047645A CN201711401618.9A CN201711401618A CN108047645A CN 108047645 A CN108047645 A CN 108047645A CN 201711401618 A CN201711401618 A CN 201711401618A CN 108047645 A CN108047645 A CN 108047645A
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- isophorone diisocyanate
- curing agent
- sealing end
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- melamine foams
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08J9/14—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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/04—Foams characterised by their properties characterised by the foam pores
- C08J2205/052—Closed cells, i.e. more than 50% of the pores are closed
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2361/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08J2361/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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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- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention relates to the melamine foams that a kind of isophorone diisocyanate using sealing end is prepared as curing agent.The melamine foams use the isophorone diisocyanate of sealing end to be made for curing agent foaming using melamine resin prepolymer, and liquid blowing agent uses hexamethylene, and normal heptane, one kind in isooctane, foaming temperature range is at 80 ~ 120 DEG C.The isophorone diisocyanate of the sealing end is using sodium hydrogensulfite as end-capping reagent, it is 80 DEG C 120 DEG C to unseal temperature, the solidification rate that isophorone diisocyanate significantly improves melamine resin prepolymer as curing agent is released, so that solidification rate is matched with the expansion rate in deblocking temperature range；The rate of closed hole of the melamine foams is more than 96%, thermal conductivity factor is less than 0.029W/mK, compressive strength reaches more than 180kPa, oxygen index (OI) reaches more than 36%, and density is less than 50 kg/m3。
Description
Technical field
The invention belongs to foam technology fields, and in particular to a kind of isophorone diisocyanate using sealing end is solid
Melamine foams prepared by agent.
Background technology
Melamine foams are a kind of heat cured high molecular materials, with good heat resistance, solvent resistance, electrical property and
Mechanical strength, and with from fiery self-extinguishment, burning when without molten drop drippage etc. excellent flame retardant property.These Optimalities of melamine foams
It can be so that it be all very extensive in the application of industry-by-industry, gradually instead of other existing foamed materials.But using traditional
Foaming technique it is difficult to be mutually matched expansion rate and solidification rate, has many lack so as to cause obtained melamine foams
It falls into：Each several part foam structure such as melamine foams is uneven, inhomogenous so as to cause each several part performance；Its percent opening is high, so as to
The thermal conductivity for causing foam is good, poor thermal insulation property, while but also water absorption rate greatly improves；Solidification rate is inadequate, causes very much
Cell collapse collapses so that compressive strength very little；Foam cell is larger, is difficult to form fine and close protectiveness carbon in burning
Layer, oxygen index (OI)（OI）Generally below 32%.Generally in order to reduce cost, foamed using liquid blowing agent, and liquid is sent out
Infusion once reaches boiling point its expansion rate quickly, and solidification rate is difficult matching expansion rate at this time, so as to cause obtained
Melamine foams have many defects.If it is relatively difficult to improve solidification rate to improve the dosage of catalyst simply, it is also possible to
Can cause the solidification rate started just quickly, in the case where not reaching blowing temperature, melamine resin just has cured, so as to no
To the melamine foams of function admirable.
The content of the invention
The object of the present invention is to provide the melamine bubbles that a kind of isophorone diisocyanate using sealing end is prepared as curing agent
Foam, meanwhile, a kind of method prepared using the isophorone diisocyanate of sealing end as the melamine foams of curing agent is provided.
The melamine foams that a kind of isophorone diisocyanate using sealing end is prepared as curing agent, it is characterised in that：It is described
Melamine foams use the isophorone diisocyanate of sealing end to foam as curing agent and are made using melamine resin prepolymer, the sealing end
Isophorone diisocyanate using sodium hydrogensulfite as end-capping reagent, deblocking temperature be 80 DEG C -120 DEG C, release isophorone
Diisocyanate significantly improves the solidification rate of melamine resin prepolymer as curing agent, so that solidification rate and deblocking temperature
In the range of expansion rate matching；The rate of closed hole of the melamine foams material is more than 96%, thermal conductivity factor is less than 0.029W/m
K, compressive strength reaches more than 180kPa, oxygen index (OI) reaches more than 36%, and density is less than 50 kg/m3。
It prepares as follows as the operating procedure of the melamine foams of curing agent using the isophorone diisocyanate blocked：
（1）Prepare the isophorone diisocyanate of sealing end
（1.1）In 30g sodium hydrogensulfites（NaHSO3）Middle addition 60g water, is completely dissolved under stirring, obtains 90g sulfurous
Sour hydrogen sodium solution；
（1.2）16g ethyl acetate is added in 26.7g isophorone diisocyanate monomers（Molar ratio HSO3 ：NCO=1.2 ：
1）, it is uniformly dispersed, obtains 42.7g isophorone diisocyanate solution；
（1.3）Under 25 DEG C of waters bath with thermostatic control, stirring conditions, 42.7g isophorone diisocyanate solution is slowly added dropwise in 90g
It in solution of sodium bisulfite, is added dropwise, continues to stir 2h, obtain 132.7g closing products；
（1.4）Under the conditions of vacuum drying, it is solid by 132.7g closing product dryings, and powder is made and is blocked to get 51.7g
Isophorone diisocyanate；
（2）Prepare the melamine foams using the isophorone diisocyanate blocked as curing agent
（2.1）Take 100g melamine resins prepolymer, 2-4g liquid blowing agents, 2-3g foam stabilizers, 1-2g surfactants, 2-4g envelopes
The isophorone diisocyanate at end and 1-3g catalyst, are mixed evenly, and obtain melamine resin expanding foam solution；
（2.2）Melamine resin expanding foam solution is poured into mold, under the conditions of 100-120 DEG C of temperature, foam 25-50min, is warming up to
110-130 DEG C, 4-6h is cured, excision forming obtains the melamine foams using the isophorone diisocyanate of sealing end as curing agent.
The technical solution further limited is as follows：
The liquid blowing agent is hexamethylene, one kind in normal heptane, isooctane.
The foam stabilizer is hydroxy silicon oil
The surfactant is lauryl sodium sulfate, neopelex, Span 60（Span-60）In one kind or
Two kinds of mixture.
The catalyst is acetic acid, one kind in hydrochloric acid, dilute sulfuric acid.
The wall thickness of the mold is no more than 5mm.
The advantageous effects of the present invention embody in the following areas：
1. the rate of closed hole for the melamine foams that the present invention is prepared using the isophorone diisocyanate that blocks as curing agent is higher, reach
To more than 96%；Heat insulation effect is preferable, and thermal conductivity factor is less than 0.029W/mK；Mechanical property is preferable, and compressive strength reaches
More than 180kPa；And possessing preferable flame retardant property, oxygen index (OI) reaches more than 36%；Density is less than 50kg/m3。
2. the curing agent used in preparation process of the present invention is the isophorone diisocyanate of sealing end, the different Fo Er of sealing end
For ketone diisocyanate using sodium hydrogensulfite as end-capping reagent, deblocking temperature is 80 DEG C~120 DEG C, releases isophorone diisocyanate
Ester significantly improves the solidification rate of melamine resin prepolymer as curing agent, and foaming agent uses hexamethylene, normal heptane, isooctane
In one kind, foaming temperature range is at 80~120 DEG C.The deblocking temperature range and body of the isophorone diisocyanate of sealing end
The foaming temperature range of system just matches, and the isophorone diisocyanate of the initial heating phase sealing end below 80 DEG C will not solve
Solidification can not be sealed, so as to which melamine resin will not be caused very much in the case where being not reaching to blowing temperature soon because of solidification rate just
First have cured.When reaching blowing temperature, the isophorone diisocyanate of sealing end, which can just unseal, plays the role of curing agent,
The isophorone diisocyanate of deblocking release is effectively improved the solidification rate of melamine resin as curing agent, passes through adjusting
The usage amount of isophorone diisocyanate can be such that solidification rate is matched with unsealing the expansion rate in temperature range, prepare comprehensive
Close melamine foams of good performance.
3. the advantages of preparation process of the present invention, is:It is used herein compared with the preparation process of other melamine foams
Curing agent for latent curing agent, the amount of curing agent is added in by adjusting, can be good in regulation and control foaming temperature range
Solidification rate so that the solidification rate in foaming temperature range matched well with expansion rate so as to be made comprehensive performance it is good
Good melamine foams；The present invention uses baking oven to prepare melamine foams as heating equipment, and the method blowing temperature is relatively low, foamed time
It is shorter.
Specific embodiment
With reference to embodiment, the present invention is further described.
The raw materials used source of following embodiment is described as follows：
Melamine resin prepolymer is purchased in " Weifang Jinsui River source Chemical Co., Ltd. ", is obtained by melamine is reacted with formaldehyde
Polymer, also known as melamine resin, english abbreviation MF.Melamine resin prepolymer water white transparency is stablized in boiling water.
Melamine resin prepolymer does not cure at room temperature, generally in 130~150 DEG C of heat cures, adds a small amount of acid catalysis that can improve curing speed
Degree.Reaction is crosslinked during machine-shaping, product is insoluble thermosetting resin.
Other reagents such as lauryl sodium sulfate, neopelex are purchased in " Chinese medicines group chemical reagent has
Limit company ".
Embodiment 1
It prepares as follows as the operating procedure of the melamine foams of curing agent using the isophorone diisocyanate blocked：
（1）Prepare the isophorone diisocyanate of sealing end
（1.1）By 30g sodium hydrogensulfites（NaHSO3）It adds in three-necked flask, adds in 60g water, it is made under stirring completely
Dissolving, obtains 90g solution of sodium bisulfite；
（1.2）26.7g isophorone diisocyanate monomer is added in dropping funel, adds in 16g ethyl acetate, is disperseed equal
It is even, obtain 42.7g isophorone diisocyanate solution；
(1.3) three-necked flask is placed in 25 DEG C of constant temperature water baths, dropping funel is opened, with certain under the rotating speed of 100rpm
Isophorone diisocyanate solution is slowly added dropwise in solution of sodium bisulfite in rate, is added dropwise, and continues to stir 2h, obtain
132.7g closes product；
(1.4) 132.7g is closed into product under the conditions of vacuum drying, dry is solid, and powder is made and is blocked to get 51.7g
Isophorone diisocyanate；
（2）Prepare the melamine foams using the isophorone diisocyanate blocked as curing agent
（2.1）100g melamine resins prepolymer is weighed in 250ml beakers, adds in 3g normal heptanes, 1.5g hydroxy silicon oils, 1g 12
The isophorone diisocyanate and 1g hydrochloric acid of sodium alkyl sulfate, 3g sealing ends, stir evenly after mixing, obtain melamine resin foaming
Liquid；
（2.2）It weighs 100g melamine resin expanding foam solutions and pours into volume as 1000cm3Mold in, mold is put into temperature as 110
DEG C baking oven in foam 35min, then heat to 120 DEG C, cure excision forming after 5h, obtain the isophorone two with sealing end
Isocyanates is the melamine foams of curing agent；
The obtained isophorone diisocyanate using sealing end as the rate of closed hole of the melamine foams of curing agent is 96.2%, heat conduction
Coefficient is 0.025 W/mK, compressive strength 185kPa, oxygen index (OI) 36.5%, density 48kg/m3。
Embodiment 2
It prepares as follows as the operating procedure of the melamine foams of curing agent using the isophorone diisocyanate blocked：
（1）Prepare the isophorone diisocyanate of sealing end
（1.1）By 30g sodium hydrogensulfites（NaHSO3）It adds in three-necked flask, adds in 60g water, it is made under stirring completely
Dissolving, obtains 90g solution of sodium bisulfite；
（1.2）26.7g isophorone diisocyanate monomer is added in dropping funel, adds in 16g ethyl acetate, is disperseed equal
It is even, obtain 42.7g isophorone diisocyanate solution；
（1.3）Three-necked flask is placed in 25 DEG C of constant temperature water baths, dropping funel is opened, with certain under the rotating speed of 100rpm
Isophorone diisocyanate solution is slowly added dropwise in solution of sodium bisulfite in rate, is added dropwise, and continues to stir 2h, obtain
132.7g closes product；
（1.4）132.7g is closed into product under the conditions of vacuum drying, dry is solid, is made what powder blocked to get 51.7g
Isophorone diisocyanate；
（2）Prepare the melamine foams using the isophorone diisocyanate blocked as curing agent
（2.1）100g melamine resins prepolymer is weighed in 250ml beakers, adds in 2.5g hexamethylenes, 1.5g hydroxy silicon oils, 1g ten
Sodium dialkyl sulfate, 1g Spans 60（Span-60）, 2.5g sealing end isophorone diisocyanate and 2g dilute sulfuric acids, after mixing
It stirs evenly, obtains melamine resin expanding foam solution；
（2.2）It weighs 100g melamine resin expanding foam solutions and pours into volume as 1000cm3Mold in, mold is put into temperature as 100
DEG C baking oven in foam 50min, then heat to 110 DEG C, cure excision forming after 6h, obtain the isophorone two with sealing end
Isocyanates is the melamine foams of curing agent；
The obtained isophorone diisocyanate using sealing end as the rate of closed hole of the melamine foams of curing agent is 96.5%, heat conduction system
Number is 0.028W/mK, compressive strength 181kPa, oxygen index (OI) 38.5%, density 46kg/m3。
Embodiment 3
It prepares as follows as the operating procedure of the melamine foams of curing agent using the isophorone diisocyanate blocked：
（1）Prepare the isophorone diisocyanate of sealing end
（1.1）By 30g sodium hydrogensulfites（NaHSO3）It adds in three-necked flask, adds in 60g water, it is made under stirring completely
Dissolving, obtains 90g solution of sodium bisulfite；
（1.2）26.7g isophorone diisocyanate monomer is added in dropping funel, adds in 16g ethyl acetate, is disperseed equal
It is even, obtain 42.7g isophorone diisocyanate solution；
（1.3）Three-necked flask is placed in 25 DEG C of constant temperature water baths, dropping funel is opened, with a constant speed under the rotating speed of 100rpm
Isophorone diisocyanate solution is slowly added dropwise in solution of sodium bisulfite in rate, is added dropwise, and continues to stir 2h, obtain
132.7g closes product；
（1.4）132.7g is closed into product under the conditions of vacuum drying, dry is solid, is made what powder blocked to get 51.7g
Isophorone diisocyanate；
（2）Prepare the melamine foams using the isophorone diisocyanate blocked as curing agent
（2.1）100g melamine resins prepolymer is weighed in 250ml beakers, adds in 4g isooctane, 1.5g hydroxy silicon oils, 1.5g
The isophorone diisocyanate and 1.5g acetic acid of neopelex, 4g sealing ends, stir evenly after mixing, obtain melamine
Resin expanded liquid；
（2.2）It weighs 100g melamine resin expanding foam solutions and pours into volume as 1000cm3Mold in, mold is put into temperature as 120
DEG C baking oven in foam 25min, then heat to 130 DEG C, cure excision forming after 4h, obtain the isophorone two with sealing end
Isocyanates is the melamine foams of curing agent；
The obtained isophorone diisocyanate using sealing end as the rate of closed hole of the melamine foams of curing agent is 97.2%, heat conduction
Coefficient is 0.023W/mK, compressive strength 200kPa, index 38.5%, density 50kg/m3。
Claims (7)
1. a kind of melamine foams that isophorone diisocyanate using sealing end is prepared as curing agent, it is characterised in that：It is described close
Amine foam uses the isophorone diisocyanate of sealing end to foam as curing agent and is made using melamine resin prepolymer, the sealing end
For isophorone diisocyanate using sodium hydrogensulfite as end-capping reagent, deblocking temperature is 80 DEG C -120 DEG C, releases isophorone two
Isocyanates significantly improves the solidification rate of melamine resin prepolymer as curing agent, so that solidification rate and deblocking temperature model
Expansion rate matching in enclosing；The rate of closed hole of the melamine foams material is more than 96%, thermal conductivity factor is less than 0.029W/mK,
Compressive strength reaches more than 180kPa, oxygen index (OI) reaches more than 36%, and density is less than 50 kg/m3。
2. prepare the side of the melamine foams prepared described in claim 1 using the isophorone diisocyanate of sealing end as curing agent
Method, it is characterised in that operating procedure is as follows：
（1）Prepare the isophorone diisocyanate of sealing end
（1.1）In 30g sodium hydrogensulfites（NaHSO3）Middle addition 60g water, is completely dissolved under stirring, obtains 90g sulfurous acid
Hydrogen sodium solution；
（1.2）16g ethyl acetate is added in 26.7g isophorone diisocyanate monomers（Molar ratio HSO3 ：NCO=1.2 ：
1）, it is uniformly dispersed, obtains 42.7g isophorone diisocyanate solution；
（1.3）Under 25 DEG C of waters bath with thermostatic control, stirring conditions, 42.7g isophorone diisocyanate solution is slowly added dropwise in 90g
It in solution of sodium bisulfite, is added dropwise, continues to stir 2h, obtain 132.7g closing products；
（1.4）Under the conditions of vacuum drying, it is solid by 132.7g closing product dryings, and powder is made and is blocked to get 51.7g
Isophorone diisocyanate；
（2）Prepare the melamine foams using the isophorone diisocyanate blocked as curing agent
（2.1）Take 100g melamine resins prepolymer, 2-4g liquid blowing agents, 2-3g foam stabilizers, 1-2g surfactants, 2-4g envelopes
The isophorone diisocyanate at end and 1-3g catalyst, are mixed evenly, and obtain melamine resin expanding foam solution；
（2.2）Melamine resin expanding foam solution is poured into mold, under the conditions of 100-120 DEG C of temperature, foam 25-50min, is warming up to
110-130 DEG C, 4-6h is cured, excision forming obtains the melamine foams using the isophorone diisocyanate of sealing end as curing agent.
3. the melamine foams that a kind of isophorone diisocyanate using sealing end according to claim 2 is prepared as curing agent
Preparation method, it is characterised in that：The liquid blowing agent is hexamethylene, one kind in normal heptane, isooctane.
4. the melamine foams that a kind of isophorone diisocyanate using sealing end according to claim 2 is prepared as curing agent
Preparation method, which is characterized in that the foam stabilizer be hydroxy silicon oil.
5. the melamine foams that a kind of isophorone diisocyanate using sealing end according to claim 2 is prepared as curing agent
Preparation method, which is characterized in that the surfactant for lauryl sodium sulfate, neopelex, Span
60（Span-60）One or both of mixture.
6. the melamine foams that a kind of isophorone diisocyanate using sealing end according to claim 2 is prepared as curing agent
Preparation method, which is characterized in that the catalyst is acetic acid, hydrochloric acid, one kind in dilute sulfuric acid.
7. the melamine foams that a kind of isophorone diisocyanate using sealing end according to claim 2 is prepared as curing agent
Preparation method, which is characterized in that the wall thickness of the mold be no more than 5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711401618.9A CN108047645B (en) | 2017-12-22 | 2017-12-22 | Melamine foam prepared by using blocked isophorone diisocyanate as curing agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401618.9A CN108047645B (en) | 2017-12-22 | 2017-12-22 | Melamine foam prepared by using blocked isophorone diisocyanate as curing agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776616A (en) * | 2019-10-26 | 2020-02-11 | 福建华夏蓝新材料科技有限公司 | Efficient wetting water-based isocyanate curing agent |
| CN114230764A (en) * | 2021-12-20 | 2022-03-25 | 嘉宝莉化工集团股份有限公司 | Water-based closed polyisocyanate curing agent and preparation method and application thereof |
| CN116477893A (en) * | 2023-03-14 | 2023-07-25 | 山东德晟矿用工程材料有限公司 | High-strength flame-retardant plugging glue powder and preparation method thereof |
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| CN110776616A (en) * | 2019-10-26 | 2020-02-11 | 福建华夏蓝新材料科技有限公司 | Efficient wetting water-based isocyanate curing agent |
| CN110776616B (en) * | 2019-10-26 | 2021-06-22 | 福建华夏蓝新材料科技有限公司 | Efficient wetting water-based isocyanate curing agent |
| CN114230764A (en) * | 2021-12-20 | 2022-03-25 | 嘉宝莉化工集团股份有限公司 | Water-based closed polyisocyanate curing agent and preparation method and application thereof |
| CN114230764B (en) * | 2021-12-20 | 2023-06-13 | 嘉宝莉化工集团股份有限公司 | Water-based closed polyisocyanate curing agent and preparation method and application thereof |
| WO2023116204A1 (en) * | 2021-12-20 | 2023-06-29 | 嘉宝莉化工集团股份有限公司 | Water-based blocked polyisocyanate curing agent, and preparation method therefor and application thereof |
| CN116477893A (en) * | 2023-03-14 | 2023-07-25 | 山东德晟矿用工程材料有限公司 | High-strength flame-retardant plugging glue powder and preparation method thereof |
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