CN110343498A - A kind of composite material aqueous adhesive and preparation method - Google Patents
A kind of composite material aqueous adhesive and preparation method Download PDFInfo
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- CN110343498A CN110343498A CN201910459043.9A CN201910459043A CN110343498A CN 110343498 A CN110343498 A CN 110343498A CN 201910459043 A CN201910459043 A CN 201910459043A CN 110343498 A CN110343498 A CN 110343498A
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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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/161—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
- C08G18/163—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22
- C08G18/165—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22 covered by C08G18/18 and C08G18/24
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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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/20—Heterocyclic amines; Salts thereof
- C08G18/2009—Heterocyclic amines; Salts thereof containing one heterocyclic ring
- C08G18/2036—Heterocyclic amines; Salts thereof containing one heterocyclic ring having at least three nitrogen atoms in the ring
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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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/24—Catalysts containing metal compounds of tin
- C08G18/244—Catalysts containing metal compounds of tin tin salts of carboxylic acids
- C08G18/246—Catalysts containing metal compounds of tin tin salts of carboxylic acids containing also tin-carbon bonds
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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
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
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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
- C08G18/65—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
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- 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
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- 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
- C09J175/06—Polyurethanes from polyesters
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- Adhesives Or Adhesive Processes (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a kind of composite material aqueous adhesive and preparation methods, it is desirable to provide a kind of excellent, heat-resisting, the age inhibiting adhesive of waterproof performance；Its technical solution includes weighing each component；Diglycol is dissolved in chain extender solvent, is added in dewatered polyadipate 1,4-butanediol esterdiol, constant temperature stirs 18-22min at 60-65 DEG C, poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyst is added, at 70 DEG C, reacts 110-130min；Product is cooled to after room temperature, neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain performed polymer；The half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, after emulsifying 30min, cooling discharging obtains standby；Standby is mixed with Phenolic Resin Modified By Bismaleimide, and remaining deionized water is added, is stirred evenly；Belong to adhesive techniques field.
Description
Technical field
The invention discloses a kind of adhesive, specifically, be a kind of composite material aqueous adhesive, the present invention
The preparation method of the aqueous adhesive is also disclosed, field of adhesive technology is belonged to.
Background technique
It is glutinous material that aqueous adhesive, which is with natural polymer or synthesis macromolecule, is taken water as a solvent or dispersing agent, is replaced pair
Environment has a toxic organic solvents of pollution, and a kind of environmentally friendly adhesive being prepared into.Existing water accack is not
100% is solvent-free, may contain auxiliary agent of the limited volatile organic compounds as its aqueous medium, to control viscosity
Or mobility.Advantage be mainly nonhazardous, it is pollution-free, do not burn, using safe, Yi Shixian process for cleanly preparing etc., disadvantage packet
It is poor to include slow drying speed, poor water resistance, freeze-proof.
Chinese patent CN200910098532. discloses the preparation method of PP composite material adhesive, and step a is poly-
The graft copolymerization of propylene and the synthesis of step b aqueous polyacrylamide adhesive, steps are as follows: being put into gold at the lower mold of injection molding machine
Belong to batten, in the top even spread PP composite material adhesive of metal batten, form coating, polypropylene from hopper into
Enter melt region, as upper mold carries out molding pressing plate, after pressing plate, solidification.
Chinese patent CN201611050200. has disclosed a kind of ballistic composite water-based polyurethane adhesive,
Raw material includes: 80-140 parts of polymer poly adipic acid 1,4- butyl glycol ester diols, 40-80 parts of modified polyisocyanic acid by weight
Ester, 2-12 part diglycol, 0.05-0.1 parts of catalyst, 1-6 parts of crosslinking agents, 1-6 parts of neutralizers, 1-2 parts of thickeners,
0.5-1 parts of levelling agents.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of pair of composite wooden material paste performance is excellent,
It is mould proof, adhesive resistant to high temperature.
Second technical solution provided by the invention is to provide the preparation method of above-mentioned adhesive.
For this purpose, first technical solution provided by the invention is such that
1) each prescription is weighed according to following weight parts, 20-25 parts of poly methylene poly phenyl poly isocyanate, polyadipate
30-50 parts of 1,4-butanediol esterdiol, 0.01-0.02 parts of composite catalyst, 1-3 parts of diglycol, crosslinking agent 0.1-0.4
Part, 1-5 parts of neutralizer, 80-120 parts of deionized water, 4-10 parts of Phenolic Resin Modified By Bismaleimide；
2) diglycol is dissolved in chain extender solvent, dewatered polyadipate 1,4-butanediol esterdiol is added
In, constant temperature stirs 18-22min at 60-65 DEG C, and poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyzing is added
Agent reacts 110-130min at 70 DEG C；
3) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain
To performed polymer；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, emulsifies 30min
Afterwards, cooling discharging obtains standby；
5) by step 4) prepare standby mixed with Phenolic Resin Modified By Bismaleimide, and be added residue go from
Sub- water, stirs evenly.
As present invention further optimization, above-mentioned composite material aqueous adhesive, the composite catalyst has
The dibutyl tin dilaurate and triazines catalyst for trimerization mixture of molar ratio 1:1.
As present invention further optimization, above-mentioned composite material aqueous adhesive, the diglycol is
Diglycol.
As present invention further optimization, above-mentioned composite material aqueous adhesive, the chain extender solvent is N-
Methyl pyrrolidone.
As present invention further optimization, above-mentioned composite material aqueous adhesive, the crosslinking agent is glycerine.
As present invention further optimization, above-mentioned composite material aqueous adhesive, the neutralizer is dimethyl
Ethanol amine.
The preparation method of the composite material aqueous adhesive passes sequentially through made from following step:
1) each prescription is weighed according to following weight parts, 20-25 parts of poly methylene poly phenyl poly isocyanate, polyadipate
30-50 parts of 1,4-butanediol esterdiol, 0.01-0.02 parts of composite catalyst, 1-3 parts of diglycol, crosslinking agent 0.1-0.4
Part, 1-5 parts of neutralizer, 80-120 parts of deionized water, 4-10 parts of Phenolic Resin Modified By Bismaleimide；
2) diglycol is dissolved in chain extender solvent, dewatered polyadipate 1,4-butanediol esterdiol is added
In, constant temperature stirs 18-22min at 60-65 DEG C, and poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyzing is added
Agent reacts 110-130min at 70 DEG C；
3) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain
To performed polymer；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, emulsifies 30min
Afterwards, cooling discharging obtains standby；
5) by step 4) prepare standby mixed with Phenolic Resin Modified By Bismaleimide, and be added residue go from
Sub- water, stirs evenly.
Second technical solution provided by the invention is such that the preparation method of the aqueous adhesive,
1) each prescription is weighed according to following weight parts, 20-25 parts of poly methylene poly phenyl poly isocyanate, polyadipate
30-50 parts of 1,4-butanediol esterdiol, 0.01-0.02 parts of composite catalyst, 1-3 parts of diglycol, crosslinking agent 0.1-0.4
Part, 1-5 parts of neutralizer, 80-120 parts of deionized water, 4-10 parts of Phenolic Resin Modified By Bismaleimide；
3) diglycol is dissolved in chain extender solvent, dewatered polyadipate 1,4-butanediol esterdiol is added
In, constant temperature stirs 18-22min at 60-65 DEG C, and poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyzing is added
Agent reacts 110-130min at 70 DEG C；
4) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain
To performed polymer；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, emulsifies 30min
Afterwards, cooling discharging obtains standby；
5) by step 4) prepare standby mixed with Phenolic Resin Modified By Bismaleimide, and be added residue go from
Sub- water, stirs evenly.
Compared with prior art, technical solution provided by the invention has following technological merit:
It is provided by the invention with poly methylene poly phenyl poly isocyanate, based on polyadipate 1,4-butanediol esterdiol etc.
Raw material is wanted, is catalyzed using composite catalyst, is that Phenolic Resin Modified By Bismaleimide mixes, the adhesive environment friend of preparation
Good adhesive strength, peel strength are high.
Specific embodiment
Claim of the invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
A kind of composite material aqueous adhesive, passes sequentially through made from following step:
1) each prescription, poly methylene poly phenyl poly isocyanate 25g, polyadipate -1,6- are weighed according to following weight
Hexylene glycol esterdiol 30g, composite catalyst 0.02g, diglycol 1g, N-Methyl pyrrolidone 4g, glycerine 0.1g, two
Methylethanolamine 1g, deionized water 120g, Phenolic Resin Modified By Bismaleimide 4g；
2) diglycol is dissolved in N-Methyl pyrrolidone, dewatered polyadipate 1,4-butanediol ester is added
In glycol, constant temperature stirs 22min at 60 DEG C, and poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyst is added,
At 70 DEG C, 110min is reacted；
3) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain
To performed polymer；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, emulsifies 30min
Afterwards, cooling discharging obtains standby；
2) 5) prepared by step 4) standby with Phenolic Resin Modified By Bismaleimide is mixed, and residue is added and goes
Ionized water stirs evenly.
The composite catalyst has dibutyl tin dilaurate and the mixing of triazines catalyst for trimerization of molar ratio 1:1
Object.
Embodiment 2
A kind of composite material aqueous adhesive, passes sequentially through made from following step:
1) each prescription, poly methylene poly phenyl poly isocyanate 20g, polyadipate -1,6- are weighed according to following weight
Hexylene glycol esterdiol 50g, composite catalyst 0.01g, diglycol 3g, N-Methyl pyrrolidone 2-4g, glycerine 0.1g,
Dimethylethanolamine 5g, deionized water 80g, Phenolic Resin Modified By Bismaleimide 10g；
2) diglycol is dissolved in N-Methyl pyrrolidone, dewatered polyadipate 1,4-butanediol ester is added
In glycol, constant temperature stirs 18min at 65 DEG C, and poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyst is added,
At 70 DEG C, 130min is reacted；
3) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain
To performed polymer；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, emulsifies 30min
Afterwards, cooling discharging obtains standby；
5) by step 4) prepare standby mixed with Phenolic Resin Modified By Bismaleimide, and be added residue go from
Sub- water, stirs evenly.
The composite catalyst has dibutyl tin dilaurate and the mixing of triazines catalyst for trimerization of molar ratio 1:1
Object.
Embodiment 3
A kind of composite material aqueous adhesive, passes sequentially through made from following step:
1) each prescription, poly methylene poly phenyl poly isocyanate 21g, polyadipate -1,6- are weighed according to following weight
Hexylene glycol esterdiol 35g, composite catalyst 0.012g, diglycol 1-3g, N-Methyl pyrrolidone 2-4g, glycerine
0.3g, dimethylethanolamine 4g, deionized water 90g, Phenolic Resin Modified By Bismaleimide 7g；
2) diglycol is dissolved in N-Methyl pyrrolidone, dewatered polyadipate 1,4-butanediol ester is added
In glycol, at 60-65 DEG C constant temperature stir 18-22min, be added poly methylene poly phenyl poly isocyanate, crosslinking agent with it is compound
Catalyst reacts 110-130min at 70 DEG C；
3) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain
To performed polymer；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, emulsifies 30min
Afterwards, cooling discharging obtains standby；
5) by step 4) prepare standby mixed with Phenolic Resin Modified By Bismaleimide, and be added residue go from
Sub- water, stirs evenly.
The composite catalyst has dibutyl tin dilaurate and the mixing of triazines catalyst for trimerization of molar ratio 1:1
Object.
Embodiment 4
A kind of composite material aqueous adhesive, passes sequentially through made from following step:
1) each prescription, poly methylene poly phenyl poly isocyanate 22g, polyadipate -1,6- are weighed according to following weight
Hexylene glycol esterdiol 40g, composite catalyst 0.015g, diglycol 2g, N-Methyl pyrrolidone 3g, glycerine 0.3g,
Dimethylethanolamine 2g, deionized water 110g, Phenolic Resin Modified By Bismaleimide 7g；
2) diglycol is dissolved in N-Methyl pyrrolidone, dewatered polyadipate 1,4-butanediol ester is added
In glycol, constant temperature stirs 20min at 62 DEG C, and poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyst is added,
At 70 DEG C, 120min is reacted；
3) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain
To performed polymer；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, emulsifies 30min
Afterwards, cooling discharging obtains standby；
5) by step 4) prepare standby mixed with Phenolic Resin Modified By Bismaleimide, and be added residue go from
Sub- water, stirs evenly.
The composite catalyst has dibutyl tin dilaurate and the mixing of triazines catalyst for trimerization of molar ratio 1:1
Object.
Adhesive prepared by embodiment 1- embodiment 4 tests the adhesive property of composite wooden material, with 5.0 ×
The uniform standard beech block of 5.0cm, surfacing be test substrate, by adhesive obtained by adhesive in embodiment 1-5 into
Row performance test, the results are shown in Table 1.
Table 1
| Project | Just viscous time/s | Heat resistance (120 DEG C) | Room temperature stability |
| Embodiment 1 | 5 | Nothing is split | Stablize |
| Embodiment 2 | 5 | Nothing is split | Stablize |
| Embodiment 3 | 7 | Nothing is split | Stablize |
| Embodiment 4 | 6 | Nothing is split | Stablize |
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of composite material aqueous adhesive, which is characterized in that pass sequentially through made from following step:
1) each prescription is weighed according to following weight parts, 20-25 parts of poly methylene poly phenyl poly isocyanate, polyadipate Isosorbide-5-Nitrae-
30-50 parts of butyl glycol ester diol, 0.01-0.02 parts of composite catalyst, 1-3 parts of diglycol, 0.1-0.4 parts of crosslinking agent,
1-5 parts of neutralizer, 80-120 parts of deionized water, 4-10 parts of Phenolic Resin Modified By Bismaleimide；
2) diglycol is dissolved in chain extender solvent, is added in dewatered polyadipate 1,4-butanediol esterdiol,
Constant temperature stirs 18-22min at 60-65 DEG C, and poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyst is added,
At 70 DEG C, 110-130min is reacted；
3) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain pre-
Aggressiveness；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, it is cold after emulsifying 30min
But it discharges, obtains standby；
5) standby prepared by step 4) is mixed with Phenolic Resin Modified By Bismaleimide, and remaining deionization is added
Water stirs evenly.
2. composite material aqueous adhesive according to claim 1, which is characterized in that the composite catalyst rubs
Dibutyl tin dilaurate and triazines catalyst for trimerization mixture of that than 1:1.
3. composite material aqueous adhesive according to claim 1, which is characterized in that the chain extender solvent is N- first
Base pyrrolidones.
4. composite material aqueous adhesive according to claim 1, which is characterized in that the crosslinking agent is glycerine.
5. composite material aqueous adhesive according to claim 1, which is characterized in that the neutralizer is dimethyl second
Hydramine.
6. the preparation method of composite material aqueous adhesive described in claim 1, which is characterized in that a kind of composite material use
Aqueous adhesive, which is characterized in that pass sequentially through made from following step:
1) each prescription is weighed according to following weight parts, 20-25 parts of poly methylene poly phenyl poly isocyanate, polyadipate Isosorbide-5-Nitrae-
30-50 parts of butyl glycol ester diol, 0.01-0.02 parts of composite catalyst, 1-3 parts of diglycol, 0.1-0.4 parts of crosslinking agent,
1-5 parts of neutralizer, 80-120 parts of deionized water, 4-10 parts of Phenolic Resin Modified By Bismaleimide；
2) diglycol is dissolved in chain extender solvent, is added in dewatered polyadipate 1,4-butanediol esterdiol,
Constant temperature stirs 18-22min at 60-65 DEG C, and poly methylene poly phenyl poly isocyanate, crosslinking agent and composite catalyst is added,
At 70 DEG C, 110-130min is reacted；
3) product in step 2) is cooled to after room temperature and neutralizer adjusting reaction solution pH to 7-8 is added, continued to stir, obtain pre-
Aggressiveness；
4) the half deionized water measured in advance is added dropwise in above-mentioned performed polymer under high velocity agitation, it is cold after emulsifying 30min
But it discharges, obtains standby；
5) standby prepared by step 4) is mixed with Phenolic Resin Modified By Bismaleimide, and remaining deionization is added
Water stirs evenly.
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