CN108048020A - A kind of mono component wet solidifying reaction type polyurethane hot-melt adhesive and preparation method - Google Patents
A kind of mono component wet solidifying reaction type polyurethane hot-melt adhesive and preparation method Download PDFInfo
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- CN108048020A CN108048020A CN201711500644.7A CN201711500644A CN108048020A CN 108048020 A CN108048020 A CN 108048020A CN 201711500644 A CN201711500644 A CN 201711500644A CN 108048020 A CN108048020 A CN 108048020A
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
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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
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
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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
- C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
- C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
- C08G18/4211—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols
- C08G18/4216—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols from mixtures or combinations of aromatic dicarboxylic acids and aliphatic 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
- C08G18/40—High-molecular-weight compounds
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/631—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyesters and/or polycarbonates
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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
- C08G18/6662—Compounds of group C08G18/42 with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38
-
- 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
- C08G2170/00—Compositions for adhesives
- C08G2170/20—Compositions for hot melt adhesives
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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)
- Adhesives Or Adhesive Processes (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a kind of mono component wet solidifying reaction type polyurethane hot-melt adhesives and preparation method thereof, the mono component wet solidifying reaction type polyurethane hot-melt adhesive is the reaction product of grafted polyester polyalcohol, polyadipate aromatic acid glycol ester glycol, polyadipate aromatic acid Isosorbide-5-Nitrae butyl glycol ester diol, castor oil, antioxidant, isocyanates, catalyst and stabilizer.The present invention is without using solvent misture, and the peel strength of the product of product bonding is high, good hand touch.
Description
Technical field
The present invention relates to a kind of mono component wet solidifying reaction type polyurethane hot-melt adhesive and preparation methods.
Background technology
Adhesive for polyurethane refer in strand containing carbamate groups (- NHCOO-) or isocyanate group (-
NCO adhesive), with the material containing active hydrogen, such as the porous material of foamed plastics, timber, leather, fabric, paper, ceramics
The material of any surface finish such as material and metal, glass, rubber, plastics suffers from excellent chemical adhesion.With environmental requirement
It is increasingly stringent, traditional organic solvent type adhesive is gradually eliminated, and turns to development hot melt and Aqueous Adhesives.Therefore,
The main development that the hot melt and Aqueous Polyurethane Adhesives of Devoting Major Efforts To Developing environment-friendly type become China's adhesive for polyurethane industry becomes
Gesture.
Moisturecuring response type adhesive has low-temperature heat melting, is easy to apply as one kind in hot melt polyurethane adhesive
Apply, wellability is good, room temperature curing, good heat resistance the features such as, industry heat is subject to hold in both hands recently.Application No. 200810047234.6
Chinese patent application file discloses a kind of preparation method of wet-curing reaction type polyurethane hot melt adhesives for shoes, utilizes terminal hydroxy group liquid
Body rubber, polyether polyol, toluene di-isocyanate(TDI), trimethylolpropane, solvent misture and catalyst preparation hot melt adhesive improve
The hydrolytic resistance and physical property of hot melt adhesive.The Chinese patent application of Application No. 201110423062.X discloses a kind of moisturecuring silane
Modified polyurethane fuse machine and preparation method thereof, with silicane-modified polyurethane, solvent misture, plasticizer, the glutinous auxiliary agent of drop, organic
Silicon additive, inorganic filler, antioxidant and ultra-violet absorber prepare hot melt adhesive, improve the adhesive property of hot melt adhesive.Application No.
201410623780.5 Chinese patent application moisture-curable polyurethane hot melt adhesive and its preparation side of a kind of long skinning time are disclosed
Method is prepared with polyether polyol, solvent misture, methyl diphenylene diisocyanate, catalyst, silane coupling agent, white carbon
Hot melt adhesive extends the skinning time of hot melt adhesive.The Chinese patent application of Application No. 201510821013.X discloses a kind of modification
The preparation method of moisture-curable polyurethane hot melt adhesive, with pentaerythritol diacrylate, to traditional moisture cure urethanes heat
Melten gel is modified to obtain satisfied initial bonding strength.It is also continuously being opened for the modification of moisture-curable polyurethane hot melt adhesive
Exhibition, but regrettably these moisture-curable polyurethane hot melt adhesives being modified use solvent misture with being still difficult to avoid that, contain
Having often influences the feel and peel strength of glue product after the hot melt adhesive use of solvent misture so that moisture-curable polyurethane hot melt adhesive
Using being subject to certain restrictions.
The content of the invention
The object of the present invention is to provide a kind of mono component wet solidifying reaction type polyurethane hot-melt adhesives without using solvent misture
And preparation method, it is existing in the prior art to solve the problems, such as.
The mono component wet solidifying reaction type polyurethane hot-melt adhesive, be grafted polyester polyalcohol, polyadipate-aromatic acid-
Glycol ester glycol, polyadipate-aromatic acid -1,4-butanediol esterdiol, castor oil, antioxidant, isocyanates, catalyst and
The reaction product of stabilizer；
The mono component wet solidifying reaction type polyurethane hot-melt adhesive, the weight percentage of each raw material are as follows：
NCO content is 2.0%~3.0% in the mono component wet solidifying reaction type polyurethane hot-melt adhesive.
Preferably,
The mono component wet solidifying reaction type polyurethane hot-melt adhesive, the weight percentage of each raw material are as follows：
NCO content is 2.3%~2.7% in the mono component wet solidifying reaction type polyurethane hot-melt adhesive.
The isocyanates is methyl diphenylene diisocyanate, Carbodiimide-Modified diisocyanate, toluene two are different
One or more in cyanate, polymethylene multi-phenenyl isocyanate；
The grafted polyester polyalcohol is styrene-grafted polyadipate system polyester polyol；
The styrene-grafted polyadipate system polyester polyol is styrene-grafted polyadipate ethylene glycol-Isosorbide-5-Nitrae-fourth two
Alcohol esterdiol, number-average molecular weight are 1500~3000, and solid content is 15~35%；
Polyadipate-the aromatic acid-glycol ester glycol number-average molecular weight is 1000~3000；Preferably, it is described poly-
The molar ratio of adipic acid and aromatic acid is 3: 1~10: 1 in adipic acid-aromatic acid-glycol ester glycol；
The number-average molecular weight of the polyadipate-aromatic acid -1,4-butanediol esterdiol is 2000~5000, it is preferred that
The molar ratio of adipic acid and aromatic acid is 3: 1~10: 1 in the polyadipate-aromatic acid -1,4-butanediol esterdiol；
The aromatic acid is terephthalic acid (TPA), the one or more in phthalic acid, M-phthalic acid, phthalic anhydride；
The antioxidant is antioxidant 1010, in antioxidant 1035, antioxidant 1076, antioxidant 245, antioxidant 1098
It is one or more kinds of；
The catalyst is N-methylmorpholine, N,N-Dibenzylamine, dimorpholine triethyl group ether, N- (dimethylaminoethyl)
One or more in morpholine；
The stabilizer is phosphoric acid.
The preparation method of the mono component wet solidifying reaction type polyurethane hot-melt adhesive, by grafted polyester polyalcohol, gather oneself two
Acid-aromatic acid-glycol ester glycol, polyadipate-aromatic acid -1,4-butanediol esterdiol and castor oil are added in reaction kettle,
(100~130) DEG C vacuum dehydration (1~2) h is warming up to, is cooled to (70~90) DEG C, antioxidant, isocyanates is added in, heats up
(100~130) DEG C reaction (2~3) h, adds in catalyst and stabilizer stirring (0.5~1.0) h, vacuum defoamation (1.0~1.5)
H, discharging, nitrogen protection pack.
Compared with prior art, the present invention has the following advantages：
(1) without using solvent misture, using grafted polyester polyalcohol and polyadipate-aromatic acid-glycol ester glycol, gather
The coordinateds such as adipic acid-aromatic acid -1,4-butanediol esterdiol improve the peel strength of the product with invention product viscose glue
With low temperature feel.
(2) hydrolytic resistance of hot melt adhesive is promoted using castor oil.
Specific embodiment
Below by specific embodiment, the present invention is further elaborated, it should be understood that the reality of the present invention
The specific material proportion described in example is applied, process conditions and result are merely to illustrate the present invention, this can not be limited with this
The protection domain of invention, the equivalent change or modification that every Spirit Essence according to the present invention is done, should all cover in this hair
In bright protection domain.
Embodiment 1
By the styrene-grafted polyester polyol (number-average molecular weight 1500) of 5.0kg, the polyadipate of 40.0kg-to benzene two
Formic acid glycol ester glycol (molar ratio of number-average molecular weight 1000, adipic acid and terephthalic acid (TPA) be 3: 1), 10.0kg gather oneself
(molar ratio of number-average molecular weight 2000, adipic acid and M-phthalic acid is 3 to diacid-M-phthalic acid -1,4-butanediol esterdiol
: it 1) is added in the castor oil of 1.0kg in reaction kettle, is warming up to 100 DEG C of vacuum dehydration 2h, is cooled to 70 DEG C, adds in 0.05kg's
The methyl diphenylene diisocyanate (MDI) of antioxidant 245,17.5kg heats up and reacts 3h at 100 DEG C, adds in the two of 0.10kg
The phosphoric acid of morpholine triethyl group ether and 0.01kg stir 0.5h, vacuum defoamation 1.5h, discharging, and nitrogen protection packs.
Embodiment 2
By the styrene-grafted polyester polyol (number-average molecular weight 3000) of 15.0kg, the polyadipate of 35kg-neighbour's benzene two
Formic acid glycol ester glycol (molar ratio of number-average molecular weight 3000, adipic acid and phthalic acid is 10: 1), 30.0kg it is poly-
Adipic acid-terephthalic acid (TPA) -1,4-butanediol esterdiol (the molar ratio of number-average molecular weight 5000, adipic acid and terephthalic acid (TPA)
For 10: 1) added in the castor oil of 5.0kg in reaction kettle, be warming up to 130 DEG C of vacuum dehydration 1h, be cooled to 90 DEG C, add in 0.5kg
Antioxidant 245, the MDI of 14.3kg, heat up and react 2h at 130 DEG C, add in the dimorpholine triethyl group ether and 0.10kg of 0.20kg
Phosphoric acid stirring 1.0h, vacuum defoamation 1.0h, discharging, nitrogen protection pack.
Embodiment 3
By the styrene-grafted polyester polyol (number-average molecular weight 2000) of 5.0kg, polyadipate-isophthalic two of 70.0kg
Formic acid glycol ester glycol (molar ratio of number-average molecular weight 2000, adipic acid and M-phthalic acid be 8: 1), 25.0kg gather oneself
(molar ratio of number-average molecular weight 3000, adipic acid and phthalic acid is 6 to diacid-phthalic acid -1,4-butanediol esterdiol
: it 1) is added in the castor oil of 2.0kg in reaction kettle, is warming up to 100 DEG C of vacuum dehydration 2h, is cooled to 70 DEG C, adds in 0.08kg's
The MDI of antioxidant 1010,20.5kg heats up and reacts 3h at 100 DEG C, adds in the dimorpholine triethyl group ether and 0.05kg of 0.15kg
Phosphoric acid stirs 1.0h, vacuum defoamation 1.5h, discharging, and nitrogen protection packs.
Embodiment 4
By the polyadipate of styrene-grafted polyester polyol (number-average molecular weight 3000) .70.0kg of 6.0kg-to benzene two
Formic acid glycol ester glycol (molar ratio of number-average molecular weight 2000, adipic acid and terephthalic acid (TPA) be 4: 1), 12.0kg gather oneself
Diacid M-phthalic acid -1,4-butanediol esterdiol (molar ratio of number-average molecular weight 3000, adipic acid and M-phthalic acid is 6:
1) added in the castor oil of 2.0kg in reaction kettle, be warming up to 130 DEG C of vacuum dehydration 1h, be cooled to 90 DEG C, add in the anti-of 0.5kg
Oxygen agent 1035, the MDI of 18.3kg heat up and react 2h at 130 DEG C, add in the dimorpholine triethyl group ether of 0.20kg and the phosphorus of 0.10kg
Acid stirring 1.0h, vacuum defoamation 1.0h, discharging, nitrogen protection pack.
Comparative example 1
By the styrene-grafted polyester polyol (number-average molecular weight 1500) of 5.0kg, the polyadipate of 40.0kg-to benzene two
Formic acid glycol ester glycol (molar ratio of number-average molecular weight 1000, adipic acid and terephthalic acid (TPA) be 3: 1), 10.0kg gather oneself
(molar ratio of number-average molecular weight 2000, adipic acid and M-phthalic acid is 3 to diacid-M-phthalic acid -1,4-butanediol esterdiol
: it 1) adds in reaction kettle, is warming up to 100 DEG C of vacuum dehydration 2h, is cooled to 70 DEG C, add in antioxidant 245, the 17.0kg of 0.05kg
Methyl diphenylene diisocyanate (MDI), heat up 100 DEG C react 3h, add in 0.10kg dimorpholine triethyl group ether and
Phosphoric acid stirring 0.5h, the vacuum defoamation 1.5h of 0.01kg, discharging, nitrogen protection pack.
Comparative example 2
By the polyadipate of 35.0kg-glycol phthalate glycol (number-average molecular weight 3000, adipic acid and adjacent benzene
1), polyadipate-terephthalic acid (TPA) of 30.0kg -1,4-butanediol esterdiol (number-average molecular weight the molar ratio of dioctyl phthalate is 10:
5000, the molar ratio of adipic acid and terephthalic acid (TPA) is 10: 1), the solvent misture of the castor oil of 5.0kg and 15.0kg add in it is anti-
It answers in kettle, is warming up to 130 DEG C of vacuum dehydration 1h, is cooled to 90 DEG C, add in antioxidant 245, the MDI of 13.0kg of 0.50kg, rise
Temperature reacts 2h at 130 DEG C, adds in the dimorpholine triethyl group ether of 0.20kg and the phosphoric acid stirring 1.0h of 0.10kg, vacuum defoamation
1.0h, discharging, nitrogen protection pack.
Comparative example 3
By the styrene-grafted polyester polyol (number-average molecular weight 2000) of 5.0kg, polyadipate-ethylene glycol of 70.0kg
Esterdiol (number-average molecular weight 2000), 25.0kg polyadipate -1,4-butanediol esterdiol (number-average molecular weight 3000) and
The castor oil of 2.0kg is added in reaction kettle, is warming up to 100 DEG C of vacuum dehydration 2h, is cooled to 70 DEG C, adds in the antioxidant of 0.08kg
1010th, the MDI of 20.5kg, heats up and reacts 3h at 100 DEG C, and the phosphoric acid of the dimorpholine triethyl group ether and 0.05kg that add in 0.15kg stirs
1.0h, vacuum defoamation 1.5h are mixed, is discharged, nitrogen protection packs.
Comparative example 4
By the styrene-grafted polyester polyol (number-average molecular weight 3000) of 6.0kg, the polyadipate of 70.0kg-to benzene two
Formic acid glycol ester glycol (molar ratio of number-average molecular weight 2000, adipic acid and terephthalic acid (TPA) be 1: 1), 12.0kg gather oneself
(molar ratio of number-average molecular weight 3000, adipic acid and M-phthalic acid is 1 to diacid-M-phthalic acid -1,4-butanediol esterdiol
: it 1) is added in the castor oil of 2.0kg in reaction kettle, is warming up to 130 DEG C of vacuum dehydration 1h, is cooled to 90 DEG C, adds in 1.00kg's
The MDI of antioxidant 1035,18.3kg heats up and reacts 2h at 130 DEG C, adds in the dimorpholine triethyl group ether and 0.10kg of 0.20kg
Phosphoric acid stirs 1.0h, vacuum defoamation 1.0h, discharging, and nitrogen protection packs.
One-component moisture-curable reaction type polyurethane hot-melt adhesive is each obtained by Application Example 1~4 and comparative example 1~4
The results are shown in tables 1 for item physical property measurement.
Table 1
To sum up, product one-component moisture-curable reaction type polyurethane hot-melt adhesive of the present invention does not add solvent misture, does not influence
The peel strength and feel of glue product, and adhesive strength is high, and hydrolytic resistance is excellent.
Although above-described embodiment is described in detail technical scheme, the technical side of the present invention
Case is not limited to above example, the thought and objective of the present invention is not being departed from, to scope of the present invention patent
The equivalent change or modification that content is made all should be the technology scope of the present invention.
Claims (10)
1. mono component wet solidifying reaction type polyurethane hot-melt adhesive, which is characterized in that for grafted polyester polyalcohol, polyadipate-virtue
Fragrant acid-glycol ester glycol, polyadipate-aromatic acid -1,4-butanediol esterdiol, antioxidant, isocyanates, are urged at castor oil
The reaction product of agent and stabilizer.
2. mono component wet solidifying reaction type polyurethane hot-melt adhesive according to claim 1, which is characterized in that the one-component
Wet-curing reaction type polyurethane hot melt adhesives, the weight percentage of each raw material are as follows：
NCO content is 2.0%~3.0% in the mono component wet solidifying reaction type polyurethane hot-melt adhesive.
3. mono component wet solidifying reaction type polyurethane hot-melt adhesive according to claim 2, which is characterized in that the one-component
Wet-curing reaction type polyurethane hot melt adhesives, the weight percentage of each raw material are as follows：
NCO content is 2.3%~2.7% in the mono component wet solidifying reaction type polyurethane hot-melt adhesive.
4. mono component wet solidifying reaction type polyurethane hot-melt adhesive according to claim 3, which is characterized in that the isocyanic acid
Ester is methyl diphenylene diisocyanate, Carbodiimide-Modified diisocyanate, toluene di-isocyanate(TDI), the more benzene of polymethylene
One or more in based isocyanate.
5. mono component wet solidifying reaction type polyurethane hot-melt adhesive according to claim 4, which is characterized in that the grafting is poly-
Ester polyol is styrene-grafted polyadipate system polyester polyol.
6. mono component wet solidifying reaction type polyurethane hot-melt adhesive according to claim 5, which is characterized in that the styrene
It is styrene-grafted polyadipate ethylene glycol -1,4-butanediol esterdiol to be grafted polyadipate system polyester polyol, counts equal molecule
It measures as 1500~3000, solid content is 15~35%.
7. mono component wet solidifying reaction type polyurethane hot-melt adhesive according to claim 6, which is characterized in that it is described gather oneself two
Acid-aromatic acid-glycol ester glycol number-average molecular weight is 1000~3000；
The number-average molecular weight of the polyadipate-aromatic acid -1,4-butanediol esterdiol is 2000~5000.
8. mono component wet solidifying reaction type polyurethane hot-melt adhesive according to claim 7, which is characterized in that it is described gather oneself two
The molar ratio of adipic acid and aromatic acid is 3: 1~10: 1 in acid-aromatic acid-glycol ester glycol；
The molar ratio of adipic acid and aromatic acid is 3: 1~10: 1 in the polyadipate-aromatic acid -1,4-butanediol esterdiol.
9. mono component wet solidifying reaction type polyurethane hot-melt adhesive according to claim 8, which is characterized in that wrap the fragrance
Acid is terephthalic acid (TPA), the one or more in phthalic acid, M-phthalic acid, phthalic anhydride；
The antioxidant is antioxidant 1010, one kind in antioxidant 1035, antioxidant 1076, antioxidant 245, antioxidant 1098
Or more than one；
The catalyst is N-methylmorpholine, N,N-Dibenzylamine, dimorpholine triethyl group ether, N- (dimethylaminoethyl) morpholine
In one or more；
The stabilizer is phosphoric acid.
10. according to the preparation method of claim 1~9 any one of them mono component wet solidifying reaction type polyurethane hot-melt adhesive,
It is characterized in that, by grafted polyester polyalcohol, polyadipate-aromatic acid-glycol ester glycol, polyadipate-aromatic acid-Isosorbide-5-Nitrae-fourth
Glycol esterdiol and castor oil are added in reaction kettle, are warming up to (100~130) DEG C vacuum dehydration (1~2) h, be cooled to (70~
90) antioxidant, isocyanates DEG C, are added in, is heated up in (100~130) DEG C reaction (2~3) h, is added in catalyst and stabilizer stirs
(0.5~1.0) h, vacuum defoamation (1.0~1.5) h are mixed, is discharged, nitrogen protection packs.
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| CN111607352A (en) * | 2020-06-11 | 2020-09-01 | 苏州金枪新材料股份有限公司 | Light, heat and moisture cured PUR hot melt adhesive for textiles and preparation method thereof |
| CN111718468A (en) * | 2020-07-15 | 2020-09-29 | 烟台云泷化学制品有限公司 | Low-cost high-hardness polyurethane stiffening agent slurry and preparation method and application thereof |
| CN112795350A (en) * | 2020-12-30 | 2021-05-14 | 烟台德邦科技股份有限公司 | Oil-acid-resistant reactive polyurethane hot melt adhesive |
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| CN112795350B (en) * | 2020-12-30 | 2023-02-03 | 烟台德邦科技股份有限公司 | Oil-acid-resistant reactive polyurethane hot melt adhesive |
| CN112852378A (en) * | 2021-01-13 | 2021-05-28 | 广东省京极盛新材料科技有限公司 | Reactive polyurethane hot melt adhesive |
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