CN108084946A - A kind of moisture-curable polyurethane hot melt adhesive and preparation method thereof - Google Patents
A kind of moisture-curable polyurethane hot melt adhesive and preparation method thereof Download PDFInfo
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- CN108084946A CN108084946A CN201711328977.6A CN201711328977A CN108084946A CN 108084946 A CN108084946 A CN 108084946A CN 201711328977 A CN201711328977 A CN 201711328977A CN 108084946 A CN108084946 A CN 108084946A
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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
- C08G18/32—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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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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
- C08G18/4202—Two or more polyesters of different physical or chemical nature
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
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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
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
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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
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
Abstract
The present invention disclose a kind of moisture-curable polyurethane hot melt adhesive and preparation method thereof, which is characterized in that raw material composition by mass percentage, including：Polyalcohol A：10%~30%;Polyalcohol B：10%~40%;Polyalcohol C：10%~40%;Antioxidant：0.5%~1%;Isocyanates：15%~25%;Catalyst：0.01%~0.1%;Chain extender：1%~1.5%;Compatilizer：2%~4%;Filler：0.5%~1.5%.The present invention mainly designs corresponding preparation process by designing raw material and proportioning, and according to raw material so that on the basis of the moisture-curable polyurethane hot melt adhesive as obtained by prepared by the present invention meets traditional performance, has higher initial shear strength performance.
Description
Technical field
The present invention relates to a kind of moisture-curable polyurethane hot melt adhesives and preparation method thereof, belong to chemical adhesive field, especially
It is moisture-curable polyurethane hot melt adhesive technical field.
Background technology
Moisture-curable polyurethane hot melt adhesive is a kind of polyurethane adhesive containing end-NCO group.In use, heating melting is applied
Glue, after glue-line cooling physical solidification generates preliminary bonding force, end-NCO in glue-line is again with the moisture in air or being glued
The active hydrogen compounds reaction on object surface, generates chemical crosslinking cure, the process is happens is that irreversible chemical reaction.It is wet
Cure polyurethane hot melt due to itself possessing solvent-free, the more low characteristic of operation temperature, be expected to be widely applied to carpenter's material
The industries such as material, textile fabric, automobile interior exterior decorations and electronic apparatus.
At present, the initial shear strength of conventional moisture-curable polyurethane hot melt adhesive is generally less than 0.25MPa, relatively low,
It can not then realize faster locating effect when practicing, i.e., can not in reach in the short period can matching requirements, shadow
Ring efficiency.
The content of the invention
It is an object of the invention to solve above-mentioned technical problem, a kind of moisture-curable polyurethane hot melt adhesive and its preparation side are provided
Method so that the moisture-curable polyurethane hot melt adhesive as obtained by prepared by the present invention has higher on the basis of traditional performance is met
Initial shear strength performance.
The technical solution adopted in the present invention is：A kind of moisture-curable polyurethane hot melt adhesive, raw material is formed, by quality percentage
Than counting, including：Polyalcohol A：10%~30%;Polyalcohol B：10%~40%;Polyalcohol C：10%~40%;Antioxidant：0.5%~1%;Isocyanide
Acid esters：15%~25%;Catalyst：0.01%~0.1%;Chain extender：1%~1.5%;Compatilizer：2%~4%;Filler：0.5%~1.5%.
Wherein, above-mentioned polyalcohol A is the polyether polyol of amorphous, and number-average molecular weight is 800 ~ 2000, the amorphous polyethers
Polyalcohol is preferably the polyoxypropyleneglycol that number-average molecular weight is 1000.
Above-mentioned polyalcohol B is the polyester polyol of high crystalline, and number-average molecular weight is 1000 ~ 4000, the high crystalline
One kind in adipic acid hexylene glycol esterdiol, tetramethylene adipate glycol, polycaprolactone glycol of polyester polyol.
Above-mentioned polyalcohol C is the linear type aliphatic polyester polyol of the low hydroxyl value of high molecular weight, and number-average molecular weight is
15000 ~ 30000, the structural formula of the linear type aliphatic polyester polyol of the low hydroxyl value of the high molecular weight is as follows：, wherein x+y=16 ~ 36, and x and y is even number；m
For 20 ~ 50.
The one kind of above-mentioned isocyanates in methyl diphenylene diisocyanate or toluene di-isocyanate(TDI).
Above-mentioned compatilizer is the polypropylene of maleic anhydride grafting, and grafting rate is 1% ~ 1.2%.
The trade mark of above-mentioned antioxidant is 1010；Above-mentioned catalyst is stannous octoate or dibutyl tin laurate；Above-mentioned chain extender
For 1,4- butanediols；Above-mentioned filler is aerosil.
The preparation process of above-mentioned moisture-curable polyurethane hot melt adhesive is as follows：
（1）On the basis of the raw material of above-mentioned moisture-curable polyurethane hot melt adhesive is formed, by polyalcohol A, polyalcohol B, polyalcohol C and resist
Oxygen agent, which is put into reaction vessel, stirs, and is heated to 100 ~ 140 DEG C, and 2 ~ 3h is dehydrated under conditions of vacuum degree ＜ 200Pa；
（2）60 ~ 84 DEG C are cooled to, adds in isocyanates and catalyst, stirring, under the conditions of 85 ~ 100 DEG C, vacuum degree ＜ 200Pa
React 60 ~ 80min；
（3）Add in chain extender, the reaction was continued 40 ~ 60min；
（4）Compatilizer is added in, continues 1 ~ 2h of stirring；
（5）Filler is added in, 0.5 ~ 1h is stirred under the conditions of 100 ~ 120 DEG C；
（6）Reaction terminates, and keeping drop temperature, the lower quickly discharging of nitrogen protection packs at 85-100 DEG C.
In terms of the innovation of the present invention is proportion design and the processing step of raw material, the low hydroxyl value of high molecular weight is particularly
Linear type aliphatic polyester polyol addition design, can both play tackifying effect, make raw material form in without adding increasing again
Stick, and final product is enabled to obtain higher initial shear strength within a short period of time, to realize the demand quickly positioned
And it is promoted using production efficiency.Meanwhile preparation flow of the invention is also relatively easy, prepares products obtained therefrom moderate viscosity, it is also square
Constructing operation when just applying.
Specific embodiment
The present invention is expanded on further below by embodiment, but is not intended to limit the present invention.
Embodiment 1：
A kind of moisture-curable polyurethane hot melt adhesive, raw material form by mass percentage, including：10% polyoxypropyleneglycol
（Number-average molecular weight 1000）, 40% adipic acid hexylene glycol esterdiol（Number-average molecular weight 2000）, 20.9% polyalcohol C（Number is equal
Molecular weight 30000, in structural formula, x=y=8, m=50）, 0.59% antioxidant, 25% methyl diphenylene diisocyanate,
0.01% stannous octoate, 1% 1,4- butanediols, 2% maleic anhydride inoculated polypropylene（Grafting rate 1%）And 0.5% gas
As silica.
The preparation process of above-mentioned moisture-curable polyurethane hot melt adhesive, step are as follows：
（1）Polyoxypropyleneglycol, adipic acid hexylene glycol esterdiol, polyalcohol C and antioxidant are put into reaction vessel and stirred
It mixes, is heated to 130 DEG C, 2.5h is dehydrated under conditions of vacuum degree ＜ 200Pa；
（2）It is cooled to 76 DEG C, adds in methyl diphenylene diisocyanate and octoate catalyst stannous, stirring, at 85 DEG C, vacuum degree
70min is reacted under the conditions of ＜ 200Pa；
（3）Add in 1,4-butanediol, the reaction was continued 50min；
（4）The polypropylene of maleic anhydride grafting is added in, continues to stir 1h；
（5）Meteorological silica is added in, 0.5h is stirred under the conditions of 100 ~ 120 DEG C；
（6）Reaction terminates, and keeping drop temperature, the lower quickly discharging of nitrogen protection packs at 90 DEG C.
A1 is labeled as according to 1 products therefrom sample of embodiment.
Embodiment 2：
A kind of moisture-curable polyurethane hot melt adhesive, raw material form by mass percentage, including：30% polyoxypropyleneglycol
（Number-average molecular weight 2000）, 34% tetramethylene adipate glycol（Number-average molecular weight 1000）, 10% polyalcohol C（Number is divided equally
Son amount 15000, in structural formula, x=8, y=16, m=40）, 0.5% antioxidant, 20% methyl diphenylene diisocyanate,
0.01% dibutyl tin laurate, 1.49% 1,4- butanediols, 3% maleic anhydride inoculated polypropylene（Grafting rate 1.2%）,
And 1% meteorological silica.
The preparation process of above-mentioned moisture-curable polyurethane hot melt adhesive, step are as follows：
（1）Polyoxypropyleneglycol, adipic acid hexylene glycol esterdiol, polyalcohol C and antioxidant are put into reaction vessel and stirred
It mixes, is heated to 120 DEG C, 2h is dehydrated under conditions of vacuum degree ＜ 200Pa；
（2）80 DEG C are cooled to, adds in methyl diphenylene diisocyanate and catalyst dibutyltin dilaurylate, stirring, 100
DEG C, react 60min under the conditions of vacuum degree ＜ 200Pa；
（3）Add in 1,4-butanediol, the reaction was continued 40min；
（4）The polypropylene of maleic anhydride grafting is added in, continues to stir 1.5h；
（5）Meteorological silica is added in, 1h is stirred under the conditions of 120 DEG C；
（6）Reaction terminates, and keeping drop temperature, the lower quickly discharging of nitrogen protection packs at 100 DEG C.
A2 is labeled as according to 2 products therefrom sample of embodiment.
Embodiment 3
A kind of moisture-curable polyurethane hot melt adhesive, raw material form by mass percentage, including：20% polyoxypropyleneglycol
（Number-average molecular weight 800）, 18.5% polycaprolactone glycol（Number-average molecular weight 3000）, 40% polyalcohol C（Number-average molecular weight
30000, in structural formula, x=8, y=24, m=20）, 0.5% antioxidant, 15% toluene di-isocyanate(TDI), 0.1% octanoic acid it is sub-
Tin, 1.4% 1,4- butanediols, 4% maleic anhydride inoculated polypropylene（Grafting rate 1.1%）And 0.5% meteorological titanium dioxide
Silicon.
The preparation process of above-mentioned moisture-curable polyurethane hot melt adhesive, step are as follows：
（1）Polyoxypropyleneglycol, polycaprolactone glycol, polyalcohol C and antioxidant are put into reaction vessel and stirred, is heated
140 DEG C are warming up to, 3h is dehydrated under conditions of vacuum degree ＜ 200Pa；
（2）It is cooled to 70 DEG C, adds in toluene di-isocyanate(TDI) and octoate catalyst stannous, stirring, at 90 DEG C, vacuum degree ＜
80min is reacted under the conditions of 200Pa；
（3）Add in 1,4-butanediol, the reaction was continued 40min；
（4）The polypropylene of maleic anhydride grafting is added in, continues to stir 2h；
（5）Meteorological silica is added in, 1h is stirred under the conditions of 100 DEG C；
（6）Reaction terminates, and keeping drop temperature, the lower quickly discharging of nitrogen protection packs at 85 DEG C.
A3 is labeled as according to 3 products therefrom sample of embodiment.
Embodiment 4
A kind of moisture-curable polyurethane hot melt adhesive, raw material form by mass percentage, including：24.5% polypropylene oxide two
Alcohol（Number-average molecular weight 2000）, 10% polycaprolactone glycol（Number-average molecular weight 4000）, 40% polyalcohol C（Number-average molecular weight
20000, in structural formula, x=4, y=24, m=30）, 1% antioxidant, 18% toluene di-isocyanate(TDI), 0.1% octanoic acid it is sub-
Tin, 1% 1,4- butanediols, 4% maleic anhydride inoculated polypropylene（Grafting rate 1%）And 1.4% meteorological silica.
The preparation process of above-mentioned moisture-curable polyurethane hot melt adhesive, step are as follows：
（1）Polyoxypropyleneglycol, polycaprolactone glycol, polyalcohol C and antioxidant are put into reaction vessel and stirred, is heated
100 DEG C are warming up to, 2h is dehydrated under conditions of vacuum degree ＜ 200Pa；
（2）It is cooled to 70 DEG C, adds in toluene di-isocyanate(TDI) and octoate catalyst stannous, stirring, at 90 DEG C, vacuum degree ＜
60min is reacted under the conditions of 200Pa；
（3）Add in 1,4-butanediol, the reaction was continued 60min；
（4）The polypropylene of maleic anhydride grafting is added in, continues to stir 1.5h；
（5）Meteorological silica is added in, 1h is stirred under the conditions of 110 DEG C；
（6）Reaction terminates, and keeping drop temperature, the lower quickly discharging of nitrogen protection packs at 95 DEG C.
A4 is labeled as according to 4 products therefrom sample of embodiment.
By above-mentioned each Product samples A1 ~ A4 and commercially available conventional moisture-curable polyurethane hot melt adhesive D1（Trade mark F20XX）And D2
（Trade mark TY50XX）Carry out correlated performance detection.Wherein, viscosity testing standard refers to GB/T 2794, the test mark of peel strength
Standard refers to GB/T 7122, the canonical reference GB/T 7124 of initial shear strength.
Test result is as shown in table 1 below：
Table 1：The performance test results
From upper table 1, it will be evident that the moisture-curable polyurethane hot melt adhesive as obtained by prepared by the present invention, in viscosity and just
It is suitable with conventional moisture-curable polyurethane hot melt adhesive performance in terms of beginning peel strength, it is equally easy to sizing and operates and ensure cementability
Energy；Meanwhile the moisture-curable polyurethane hot melt adhesive that the present invention prepares gained has better initial shear strength, is very suitable for quick
Positioning application promotes whole industry efficiency of assembling.
Claims (10)
1. a kind of moisture-curable polyurethane hot melt adhesive, which is characterized in that the raw material of the moisture-curable polyurethane hot melt adhesive is formed, by matter
Percentages are measured, including：
Polyalcohol A：10%~30%;
Polyalcohol B：10%~40%;
Polyalcohol C：10%~40%;
Antioxidant：0.5%~1%;
Isocyanates：15%~25%;
Catalyst：0.01%~0.1%;
Chain extender：1%~1.5%;
Compatilizer：2%~4%;
Filler：0.5%~1.5%；
Wherein, polyalcohol A is the polyether polyol of amorphous, and number-average molecular weight is 800 ~ 2000；Polyalcohol B is high crystalline
Polyester polyol, number-average molecular weight are that its number-average molecular weight is 1000 ~ 4000；Polyalcohol C is the straight of the low hydroxyl value of high molecular weight
Chain aliphatic polyester polyols, number-average molecular weight are 15000 ~ 30000, and structural formula is：, wherein x+y=16 ~ 36, and x and y is even number；m
For 20 ~ 50.
2. moisture-curable polyurethane hot melt adhesive as described in claim 1, it is characterised in that：The polyalcohol A is polypropylene oxide
Glycol, number-average molecular weight 1000.
3. moisture-curable polyurethane hot melt adhesive as described in claim 1, it is characterised in that：The polyalcohol B be selected from adipic acid oneself
One kind in glycol esterdiol, tetramethylene adipate glycol, polycaprolactone glycol.
4. moisture-curable polyurethane hot melt adhesive as described in claim 1, it is characterised in that：The compatilizer is grafted for maleic anhydride
Polypropylene, grafting rate are 1% ~ 1.2%.
5. moisture-curable polyurethane hot melt adhesive as described in claim 1, it is characterised in that：The trade mark of the antioxidant is 1010；
The one kind of the isocyanates in methyl diphenylene diisocyanate or toluene di-isocyanate(TDI)；The catalyst is octanoic acid
Stannous or dibutyl tin laurate；The chain extender is 1,4- butanediols；The filler is aerosil.
6. a kind of preparation method of moisture-curable polyurethane hot melt adhesive, which is characterized in that include the following steps：
（1）Polyalcohol A, polyalcohol B, polyalcohol C and antioxidant are put by a preset ratio in reaction vessel and stirred, is heated
100 ~ 140 DEG C are warming up to, 2 ~ 3h is dehydrated under conditions of vacuum degree ＜ 200Pa；
（2）60 ~ 84 DEG C are cooled to, adds in isocyanates and catalyst, stirring, under the conditions of 85 ~ 100 DEG C, vacuum degree ＜ 200Pa
React 60 ~ 80min；
（3）Add in chain extender, the reaction was continued 40 ~ 60min；
（4）Compatilizer is added in, continues 1 ~ 2h of stirring；
（5）Filler is added in, 0.5 ~ 1h is stirred under the conditions of 100 ~ 120 DEG C；
（6）Reaction terminates, and keeping drop temperature, the lower quickly discharging of nitrogen protection packs at 85-100 DEG C；
The material added in above steps, by mass percentage, respectively：Polyalcohol A：10%~30%;Polyalcohol B：
10%~40%;Polyalcohol C：10%~40%;Antioxidant：0.5%~1%;Isocyanates：15%~25%;Catalyst：0.01%~0.1%;Expand
Chain agent：1%~1.5%;Compatilizer：2%~4%;Filler：0.5%~1.5%；Wherein, polyalcohol A is the polyether polyol of amorphous；It is polynary
Alcohol B is the polyester polyol of high crystalline；Polyalcohol C is the linear type aliphatic polyester polyol of the low hydroxyl value of high molecular weight,
Structural formula is：, wherein x+y=16 ~ 36, and x and y
It is even number；M is 20 ~ 50.
7. the preparation method of moisture-curable polyurethane hot melt adhesive as claimed in claim 6, it is characterised in that：The polyethers of the amorphous
The number-average molecular weight of polyalcohol is 800 ~ 2000；The number-average molecular weight of the polyester polyol of the high crystalline is 1000 ~ 2000；
The number-average molecular weight of the linear type aliphatic polyester polyol of the low hydroxyl value of the high molecular weight is 15000 ~ 30000.
8. the preparation method of moisture-curable polyurethane hot melt adhesive as claimed in claim 7, it is characterised in that：The polyethers of the amorphous
Polyalcohol is the polyoxypropyleneglycol of number-average molecular weight 1000, the polyester polyol of the high crystalline be selected from adipic acid oneself two
One kind in alcohol esterdiol, tetramethylene adipate glycol, polycaprolactone glycol.
9. the preparation method of moisture-curable polyurethane hot melt adhesive as claimed in claim 6, it is characterised in that：The compatilizer is horse
Maleic anhydride grafted polypropylene, grafting rate are 1% ~ 1.2%.
10. the preparation method of moisture-curable polyurethane hot melt adhesive as claimed in claim 6, it is characterised in that：The antioxidant
The trade mark is 1010；The one kind of the isocyanates in methyl diphenylene diisocyanate or toluene di-isocyanate(TDI)；It is described
Catalyst is stannous octoate or dibutyl tin laurate；The chain extender is 1,4- butanediols；The filler is gas phase dioxy
SiClx.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711328977.6A CN108084946A (en) | 2017-12-13 | 2017-12-13 | A kind of moisture-curable polyurethane hot melt adhesive and preparation method thereof |
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|---|---|---|---|
| CN201711328977.6A CN108084946A (en) | 2017-12-13 | 2017-12-13 | A kind of moisture-curable polyurethane hot melt adhesive and preparation method thereof |
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| CN108084946A true CN108084946A (en) | 2018-05-29 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575866A (en) * | 2018-12-14 | 2019-04-05 | 昆山天洋热熔胶有限公司 | A kind of preparation method of moisture-curable polyurethane hot melt adhesive |
| CN110256999A (en) * | 2019-06-19 | 2019-09-20 | 烟台泰盛精化科技有限公司 | A kind of high just intensity reaction type polyurethane hot-melt adhesive and preparation method thereof |
| CN110607160A (en) * | 2019-08-20 | 2019-12-24 | 上海汉司实业有限公司 | Moisture-curing polyurethane hot melt adhesive for automobile ceiling pendant and preparation method thereof |
| CN111269683A (en) * | 2020-03-24 | 2020-06-12 | 上海汉司实业有限公司 | Polyurethane hot melt adhesive, preparation method thereof, adhesive and automobile interior and exterior trimming parts |
| CN112300745A (en) * | 2019-08-02 | 2021-02-02 | 万华化学（北京）有限公司 | Moisture-curing reaction type polyurethane hot melt adhesive and preparation method thereof |
| CN113861852A (en) * | 2021-10-11 | 2021-12-31 | 康达新材料(集团)股份有限公司 | Single-component moisture curing reaction type polyurethane hot melt adhesive for electronic products and preparation method thereof |
| CN115141592A (en) * | 2021-03-31 | 2022-10-04 | 中科先行(济宁)新材料研究院有限公司 | Antibacterial polypropylene modified polyurethane and preparation method thereof |
| CN115820194A (en) * | 2021-09-16 | 2023-03-21 | 南通天洋新材料有限公司 | Reactive polyurethane hot melt adhesive and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5019638A (en) * | 1988-08-11 | 1991-05-28 | Huels Aktiengesellschaft | Rapidly setting, moisture-curable hot melt adhesives and their use |
| CN102732203A (en) * | 2012-06-26 | 2012-10-17 | 中国科学院理化技术研究所嘉兴工程中心 | Preparation method of reaction type polyurethane hot melt adhesive for automotive lamps |
| CN103497725A (en) * | 2013-09-26 | 2014-01-08 | 昆山天洋热熔胶有限公司 | Preparation method of wet curing reaction-type polyurethane hot melt adhesive for textile |
| CN104449535A (en) * | 2014-11-25 | 2015-03-25 | 上海天洋热熔粘接材料股份有限公司 | Preparation method for silane-modified moisture-curable polyurethane hot melt adhesive |
-
2017
- 2017-12-13 CN CN201711328977.6A patent/CN108084946A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5019638A (en) * | 1988-08-11 | 1991-05-28 | Huels Aktiengesellschaft | Rapidly setting, moisture-curable hot melt adhesives and their use |
| CN102732203A (en) * | 2012-06-26 | 2012-10-17 | 中国科学院理化技术研究所嘉兴工程中心 | Preparation method of reaction type polyurethane hot melt adhesive for automotive lamps |
| CN103497725A (en) * | 2013-09-26 | 2014-01-08 | 昆山天洋热熔胶有限公司 | Preparation method of wet curing reaction-type polyurethane hot melt adhesive for textile |
| CN104449535A (en) * | 2014-11-25 | 2015-03-25 | 上海天洋热熔粘接材料股份有限公司 | Preparation method for silane-modified moisture-curable polyurethane hot melt adhesive |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575866A (en) * | 2018-12-14 | 2019-04-05 | 昆山天洋热熔胶有限公司 | A kind of preparation method of moisture-curable polyurethane hot melt adhesive |
| CN110256999A (en) * | 2019-06-19 | 2019-09-20 | 烟台泰盛精化科技有限公司 | A kind of high just intensity reaction type polyurethane hot-melt adhesive and preparation method thereof |
| CN112300745A (en) * | 2019-08-02 | 2021-02-02 | 万华化学（北京）有限公司 | Moisture-curing reaction type polyurethane hot melt adhesive and preparation method thereof |
| CN110607160A (en) * | 2019-08-20 | 2019-12-24 | 上海汉司实业有限公司 | Moisture-curing polyurethane hot melt adhesive for automobile ceiling pendant and preparation method thereof |
| CN111269683A (en) * | 2020-03-24 | 2020-06-12 | 上海汉司实业有限公司 | Polyurethane hot melt adhesive, preparation method thereof, adhesive and automobile interior and exterior trimming parts |
| CN115141592A (en) * | 2021-03-31 | 2022-10-04 | 中科先行(济宁)新材料研究院有限公司 | Antibacterial polypropylene modified polyurethane and preparation method thereof |
| CN115820194A (en) * | 2021-09-16 | 2023-03-21 | 南通天洋新材料有限公司 | Reactive polyurethane hot melt adhesive and preparation method thereof |
| CN113861852A (en) * | 2021-10-11 | 2021-12-31 | 康达新材料(集团)股份有限公司 | Single-component moisture curing reaction type polyurethane hot melt adhesive for electronic products and preparation method thereof |
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Application publication date: 20180529 |