CN106700011A - Preparation and use method of polyurethane hot melt adhesive with strong initial adhesion force - Google Patents
Preparation and use method of polyurethane hot melt adhesive with strong initial adhesion force Download PDFInfo
- Publication number
- CN106700011A CN106700011A CN201710071645.8A CN201710071645A CN106700011A CN 106700011 A CN106700011 A CN 106700011A CN 201710071645 A CN201710071645 A CN 201710071645A CN 106700011 A CN106700011 A CN 106700011A
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- Prior art keywords
- hot melt
- preparation
- parts
- polyurethane hot
- reaction
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 27
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000004831 Hot glue Substances 0.000 title abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000004026 adhesive bonding Methods 0.000 claims description 12
- 239000012943 hotmelt Substances 0.000 claims description 11
- 150000001412 amines Chemical class 0.000 claims description 10
- 239000012948 isocyanate Substances 0.000 claims description 9
- 150000002513 isocyanates Chemical class 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 229920001451 polypropylene glycol Polymers 0.000 claims description 6
- 150000005846 sugar alcohols Polymers 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 2
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- 238000005984 hydrogenation reaction Methods 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 claims 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 claims 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 abstract description 2
- 238000001723 curing Methods 0.000 abstract 2
- 238000013008 moisture curing Methods 0.000 abstract 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 6
- 208000005156 Dehydration Diseases 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000006757 chemical reactions by type Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000002028 premature Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a preparation and use method of polyurethane hot melt adhesive with strong initial adhesion force, which can solve the problem of insufficient initial adhesion force of moisture-curing polyurethane hot melt adhesive at existing market. The preparation and use method comprises the following steps of adding a potential curing agent into the traditional moisture-curing polyurethane hot melt adhesive, producing active hydrogen group which reacts with isocyanate group in polyurethane, and quickly forming initial curing. The preparation and use method has the advantages that the initial adhesion force in the use process of the hot melt adhesive is greatly increased, and the preparation and use method is suitable for the field of production of hot melt adhesives.
Description
Technical field
It is a kind of strong polyurethane of initial bond power more specifically the present invention relates to the preparation field of polyurethane hot melt
The preparation and application of PUR.
Background technology
PUR is a kind of important adhesive, is at normal temperatures solid, and being heated under uniform temperature to flow, shape
Into the liquid with certain stickiness, for the bonding in production and living to object, with easily preservation, nontoxic pollution-free etc. is excellent
Point.
The reaction type polyurethane of the moisture-curable that existing market uses（PUR single moisture-curable form) is generally, it lacks
Fall into obvious, if product initial bond advocates to be cooled and solidified by physics, cause initial adhesion force not high, easily cause glued
Thing displacement or alice.Or need to keep pushing down glued article for a long time, cause product largely to overstock and the large quantities of wastes of instrument.
Occur on the market containing light-cured type moisture reaction type polyurethane adhesive, the product can solve above-mentioned asking
Topic, but it is transparent material to require that then material must have one side, could form premature cure.
The content of the invention
In order to solve the above problems, realize that polyurethane adhesive forms premature cure on common sticky material, the present invention is proposed
A kind of preparation and application of the preparation and application of the strong polyurethane hot melt of initial bond power, can have strong in the early stage
Bonding force, and realize moisture-curable in the later stage.Its concrete technical scheme is as follows：
A kind of preparation and application of the strong polyurethane hot melt of initial bond power, in parts by mass, including polyalcohol 60-85
Part, multicomponent isocyanate 10-30 parts, latent curing agent 3-16 parts, preparation method is as follows：
Step one, by polyalcohol 70-85 parts of addition reactor, be dehydrated 1-2 hours, 100-120 DEG C of reaction temperature, reaction pressure
It is -0.0950 to -0.0850MPa, after dehydration is finished, is cooled to less than 80 DEG C；
Step 2, by multicomponent isocyanate 10-20 parts add walk reactor in, inflated with nitrogen or vacuumize reaction 1.5-2.5 hours,
90-100 DEG C of reaction temperature, is cooled to less than 90 DEG C after the completion of reaction；
Step 3, will in latent curing agent 3-16 parts of addition reactor, stir 20-50 minute, then deaeration discharge, sealing preserve.
Further, polyalcohol be 2000 including molecular weight and degree of functionality be 2 polypropylene glycol, molecular weight be 3000
One kind or mixing in polybutyleneadipate.
Further, multicomponent isocyanate is methyl diphenylene diisocyanate, toluene di-isocyanate(TDI), hexa-methylene two
One kind in isocyanates, hydrogenation methylenebis phenyl isocyanate, IPDI.
Further, latent curing agent is closing amine.
Further, the PUR application method for being produced by the process in the present invention：When gluing is used, gluing temperature
It is 80 DEG C to spend, and surface temperature is heated to 120 DEG C to 200 DEG C, minute-pressure 1 minute, natural cooling after gluing.
Beneficial effects of the present invention：Closing amine is added in reaction type polyurethane hot-melt adhesive production process, closing amine can be
Rapid release allows it containing the active hydrogen-based that can be reacted with the isocyanate groups in moisture-curable polyurethane under uniform temperature
Premature cure is quickly formed, to greatly improve the adhesion of early stage.
Specific embodiment
For that can enterOneStep understands feature of the invention, technological means and the specific purposes for being reached, function, with reference to
Embodiment is described in further detail to the present invention.
Embodiment 1
40 parts of polypropylene glycols and 40 parts of polybutyleneadipates are added in reactor, 110 DEG C, -0.095MPa vacuum dehydrations
1hr.Less than 80 DEG C, plus methyl diphenylene diisocyanate are cooled to, 13.04 parts, 90-100 DEG C of reaction 2hr, course of reaction is taken out
Vacuum protection, is cooled to 80 DEG C, seals up and closes 4.8 parts of amine, stir 30min, temperature control below 80 DEG C, deaeration, plastic emitting, sealed bundle
Dress.
Embodiment 2
40 parts of polypropylene glycols and 40 parts of polybutyleneadipates are added in reactor, 110 DEG C, -0.095MPa vacuum dehydrations
1hr.Less than 80 DEG C, plus methyl diphenylene diisocyanate are cooled to, 13.04 parts, 90-100 DEG C of reaction 2hr, course of reaction is taken out
Vacuum protection, is cooled to 80 DEG C, seals up and closes 6.4 parts of amine, stir 30min, temperature control below 80 DEG C, deaeration, plastic emitting, sealed bundle
Dress.
Embodiment 3
40 parts of polypropylene glycols and 40 parts of polybutyleneadipates are added in reactor, 110 DEG C, -0.095MPa vacuum dehydrations
1hr.Less than 80 DEG C, plus methyl diphenylene diisocyanate are cooled to, 13.04 parts, 90-100 DEG C of reaction 2hr, course of reaction is taken out
Vacuum protection, is cooled to 80 DEG C, seals up and closes 8 parts of amine, stirs 30min, and below 80 DEG C, deaeration, plastic emitting is packed temperature control.
Comparative example
40 parts of polypropylene glycols and 40 parts of polybutyleneadipates are added in reactor, 110 DEG C, -0.095MPa vacuum dehydrations
1hr.Less than 80 DEG C, plus methyl diphenylene diisocyanate are cooled to, 13.04 parts, 90-100 DEG C of reaction 2hr, course of reaction is taken out
Vacuum protection, is cooled to 80 DEG C, vacuum defoamation, airtight package.
The finished product to each embodiment carries out measure of merit below.
The data of following table carry out GB 2791-81 adhesive tests from each finished product CPU viscous to aluminium.
80 DEG C of gluing temperature, 25 DEG C of test temperature, after gluing cooling, 1min or so tests, as peel strength 1.
80 DEG C of gluing temperature, surface is heated up to 135 DEG C after gluing, minute-pressure 1min, after cooling, 1min or so tests, as
Peel strength 2.
80 DEG C of gluing temperature, surface is heated up to 135 DEG C after gluing, minute-pressure 1min, after cooling, room temperature maturation 24hr, test,
As peel strength 3.
Cause that polyurethane hot melt is compared using preparation method of the invention and application method as can be seen from the table original
Technology is comparative example, there is very big lifting,.
Polyurethane hot melt peel strength contrast table under different embodiments
| Testing standard GB 2791-81, unit N/mm | Peel strength 1 | Peel strength 2 | Peel strength 3 |
| Embodiment 1 | 0.2049 | 0.8674 | 2.8595 |
| Embodiment 2 | 0.2207 | 1.2120 | 3.0172 |
| Embodiment 3 | 0.2450 | 1.4896 | 3.0576 |
| Control sample | 0.1960 | 0.3038 | 2.8518 |
Analysis upper table data understand：
The embodiment product of closing amine is added than not adding the initial stage peel strength of closing amine embodiment product big.Heating temperature
When degree reaches 135 DEG C, the bonding force at its initial stage is preferred.
Adding closing amine can accelerate the process of early stage solidification.
Embodiment described above only expresses embodiments of the present invention, and its description is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
Enclose.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. the preparation and application of the strong polyurethane hot melt of a kind of initial bond power, it is characterised in that in parts by mass, bag
Polyalcohol 60-85 parts, multicomponent isocyanate 10-30 parts, latent curing agent 3-16 parts is included, preparation method is as follows：
Step one, by polyalcohol 70-85 parts of addition reactor, be dehydrated 1-2 hours, 100-120 DEG C of reaction temperature, reaction pressure
It is -0.0950 to -0.0850MPa, after dehydration is finished, is cooled to less than 80 DEG C；
Step 2, by multicomponent isocyanate 10-20 parts of addition reactor, inflated with nitrogen or vacuumize reaction 1.5-2.5 hours, instead
90-100 DEG C of temperature is answered, less than 90 DEG C are cooled to after the completion of reaction；
Step 3, will in latent curing agent 3-16 parts of addition reactor, stir 20-50 minute, then deaeration discharge, sealing preserve.
2. according to a kind of preparation and application of the strong polyurethane hot melt of the initial bond power in claim 1, its feature
It is that the polyalcohol is 2000 including molecular weight and degree of functionality is 2 polypropylene glycol, the polyadipate that molecular weight is 3000
One kind or mixing in butanediol.
3. according to a kind of preparation and application of the strong polyurethane hot melt of the initial bond power in claim 1, its feature
It is that the multicomponent isocyanate is methyl diphenylene diisocyanate, toluene di-isocyanate(TDI), the isocyanic acid of hexa-methylene two
One kind in ester, hydrogenation methylenebis phenyl isocyanate, IPDI.
4. according to a kind of preparation and application of the strong polyurethane hot melt of the initial bond power in claim 1, its feature
It is that the latent curing agent is closing amine.
5. the system of the strong polyurethane hot melt of a kind of initial bond power according to any claim in Claims 1-4
Standby and application method, it is characterised in that by the PUR application method that the process in the present invention is produced：Used in gluing
When, gluing temperature is 80 DEG C, and surface temperature is heated to 120 DEG C to 200 DEG C, minute-pressure 1 minute, natural cooling after gluing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071645.8A CN106700011A (en) | 2017-02-09 | 2017-02-09 | Preparation and use method of polyurethane hot melt adhesive with strong initial adhesion force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071645.8A CN106700011A (en) | 2017-02-09 | 2017-02-09 | Preparation and use method of polyurethane hot melt adhesive with strong initial adhesion force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106700011A true CN106700011A (en) | 2017-05-24 |
Family
ID=58910399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710071645.8A Pending CN106700011A (en) | 2017-02-09 | 2017-02-09 | Preparation and use method of polyurethane hot melt adhesive with strong initial adhesion force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106700011A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4182898A (en) * | 1978-01-20 | 1980-01-08 | Anderson Development Company | Stable and storable polyester-polyether co-prepolymers |
| US6011106A (en) * | 1997-09-29 | 2000-01-04 | Rohm And Haas Company | High-build low-sag aqueous coating composition |
| CN101541908A (en) * | 2006-11-17 | 2009-09-23 | Sika技术股份公司 | Moisture-curing hot-melt adhesive compound containing polyaldimine |
| CN101687775A (en) * | 2007-07-16 | 2010-03-31 | Sika技术股份公司 | Aldimines and compositions comprising aldamine |
-
2017
- 2017-02-09 CN CN201710071645.8A patent/CN106700011A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4182898A (en) * | 1978-01-20 | 1980-01-08 | Anderson Development Company | Stable and storable polyester-polyether co-prepolymers |
| US6011106A (en) * | 1997-09-29 | 2000-01-04 | Rohm And Haas Company | High-build low-sag aqueous coating composition |
| CN101541908A (en) * | 2006-11-17 | 2009-09-23 | Sika技术股份公司 | Moisture-curing hot-melt adhesive compound containing polyaldimine |
| CN101687775A (en) * | 2007-07-16 | 2010-03-31 | Sika技术股份公司 | Aldimines and compositions comprising aldamine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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