CN105315949A - Polyurethane adhesive with short opening time and high elasticity and application thereof - Google Patents
Polyurethane adhesive with short opening time and high elasticity and application thereof Download PDFInfo
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- CN105315949A CN105315949A CN201510833696.0A CN201510833696A CN105315949A CN 105315949 A CN105315949 A CN 105315949A CN 201510833696 A CN201510833696 A CN 201510833696A CN 105315949 A CN105315949 A CN 105315949A
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Abstract
The invention relates to a polyurethane adhesive and application thereof. The polyurethane adhesive is prepared from, by mass, 20%-36% of polyether polyol or polyester polyol or a mixture of polyether polyol and polyester polyol, 48%-70% of thermoplastic resin, 13%-15% of isocyanate, 0.5% of catalyst and 1% of silane coupling agent, wherein the total percentage of the materials is 100%. The polyurethane adhesive can be used as a material of a supporting gasket. According to the polyurethane adhesive, after adhesive application is over, the surface of the adhesive can lose stickiness in an extremely short time, and components in adhesion have high bonding strength and good tenacity. Therefore, convenience is brought to a user, assembly efficiency is greatly improved for the user, and a good bonding effect is achieved. The polyurethane adhesive can be used as a bearing or buffering gasket in the process of assembling light parts under the condition of a small adhesive application thickness. Besides, the polyurethane adhesive has high body strength and good elasticity, thereby being capable of being used for adhesion of general structures.
Description
Technical field
The present invention relates to a kind of adhesive for polyurethane and application thereof.
Background technology
Urethane (PU) is a kind of high molecular synthetic material of superior performance, is widely applied in fields such as porous plastics, elastomerics, sizing agent and coating.Polyurethanes sizing agent has excellent adhesive property and good snappiness, shock-resistance, solvent resistance, wear resistance, flexibility and resistance to low temperature etc. and is widely used in industrial sector and the civil areas such as laminated film, shoemaking, leather, fabric, automobile, timber, civil construction.But existing polyurethanes hot melt adhesive is difficult to ensureing, under the shorter open hour, to take into account higher bonding strength and good snappiness.
Summary of the invention
The object of the present invention is to provide a kind of polyurethane-base sizing agent.After having executed glue, its surface can within the extremely short time (in half a minute) lose viscosity, meanwhile, the parts after bonding not only have higher bonding strength, and toughness is also fine.Therefore can facilitate user, greatly accelerate the efficiency of assembling of user and reach good adhesive effect.
In addition, the present invention also aims to provide described polyurethane-base sizing agent can as the purposes of support pad material.
According to a specific embodiment of the present invention, can provide a kind of adhesive for polyurethane, its soft section is polyethers or polyester or their mixture; Hard section is isocyanic ester or its mixture.
Preferably, described adhesive for polyurethane, be made up of following raw material by mass percentage: both mixture 20%-36% of polyether glycol or polyester polyol or more, thermoplastic resin 48%-70%, isocyanic ester 13%-15%, catalyzer 0.5% and silane coupling agent 1%, above per-cent summation is 100%.
The result of study of present inventor shows, admixtured polyether kind and greatly affect open hour and bulk strength than regular meeting in soft section.In general, the content of PPG is larger, and the open hour are longer, but elongation at break is higher.
On the other hand, present inventor finds, by regulating and controlling the functionality of isocyanic ester in hard section, can allocate the length of open hour and the height of elongation at break, functionality is more, and open hour response shortens, and elongation at break also decreases.
Described isocyanate ester compound represents the compound of molecular chain terminal with two and above isocyanate group (socyanate).It can be aliphatics, and aromatic series is aliphatics and aromatic mixture even.The example of this polyisocyanates compounds has: tolylene diisocyanate, methyl diphenylene diisocyanate, 1, 6-hexamethylene diisocyanate, 1, 12-dodecane diisocyanate, hexanaphthene-1, 3-vulcabond, tetramethylene-1, 3-vulcabond, hexanaphthene-1, 3-vulcabond, six hydrogen-1, the stupid vulcabond of 3-, six hydrogen-1, the stupid vulcabond of 4-, hydrogenation-2, 4-'-diphenylmethane diisocyanate, hydrogenation-4, 4-'-diphenylmethane diisocyanate, PPDI, Toluene-2,4-diisocyanate, 6-vulcabond, Toluene-2,4-diisocyanate, 4-vulcabond or above multiple compounds and polymeric mixture.
Preferably, described isocyanic ester is polyisocyanates.More specifically, described isocyanic ester is MDI.
Described polyester segment polymkeric substance represents that molecular chain terminal is with two and above hydroxyl and with the polymkeric substance of ester group in repeating unit.It can be aliphatics, aromatic series or their mixture.The example of this polyester polymer has: poly-hexanodioic acid hexylene glycol ester, poly-hexanodioic acid-1,6 glycol ester, polyneopentyl glycol adipate, poly-hexanodioic acid pentadiol ester, polydiethylene glycol adipate, polyphenyl acid anhydride hexylene glycol ester, polyphenyl acid anhydride-1,6 glycol esters, polyphenyl acid anhydride DOPCP, polyphenyl acid anhydride pentadiol ester, the mixture of polyphenyl acid anhydride binaryglycol ester or above two kinds and multiple polymers.
Preferably, described polyester polyol is by a kind of synthetics in the one in AA, PA and DEG, NPG, MPG or their mixture; Polyester polyol weight-average molecular weight is 1000-5000.
So-called polyether segment polymkeric substance represents that molecular chain terminal is with two and above hydroxyl and with the polymkeric substance of ehter bond in repeating unit, it can be aliphatics, aromatic series or their polymkeric substance.The example of this polyether-based polymers has: polyoxypropyleneglycol, polyoxytrimethylene triol, polyoxytrimethylene-castor oil polyhydric alcohol, polyoxytrimethylene tetrol, polyoxytrimethylene pentol, polyoxytrimethylene six alcohol, polyoxytrimethylene eight alcohol, polytetrahydrofuran diol, tetrahydrofuran (THF)-propylene oxide copolymer glycols, polybutadiene diol, the fine copolymer glycols of polyhutadiene-propylene, the mixture of Viscotrol C or above two kinds and multiple polymers.
Preferably, described polyether glycol is selected from PPG, PTMEG or PEG, and wherein PPG weight-average molecular weight is 400-5000, PTMEG weight-average molecular weight is 500-4000.
Described thermoplastic resin is the one in Polyurethane Thermoplastic Elastomer, polyacrylic resin, Gum Rosin, polyolefin resin.
Described catalyzer is DMDEE.
Present invention also offers the application of described adhesive for polyurethane, using described adhesive for polyurethane as support pad material.
More specifically, load-bearing when described adhesive for polyurethane is for assembling lightweight part or buffering spacer.
Urethane support pad prepared by described adhesive for polyurethane, at 23 DEG C, is solidified after seven days under the condition of 50% humidity, has the bonding tensile strength being not less than 5Mpa and the elongation at break being not less than 500%.Urethane support pad prepared by described adhesive for polyurethane is at 23 DEG C, and under the condition of 50% humidity after applying glue 5-30 second, surface loses viscosity, can assemble next process thereon.
After polyurethane-base sizing agent of the present invention has executed glue, its surface can within the extremely short time (in half a minute) lose viscosity, and set up rapidly certain bulk strength, therefore user can be facilitated, greatly accelerate the efficiency of assembling of user, under thinner applying glue thickness, load-bearing when assembling lightweight part or buffering spacer can be served as.In addition, because the sizing agent that the present invention relates to has stronger bulk strength and good elasticity, it also may be used for general structural bond.
Embodiment
Example one:
As shown in table 1, reactive hot-melt involved in the present invention can by formula preparation in table, polyether glycol be heated to 100 degrees Celsius and be mixed in (stirring velocity is 300rpm) in reactor, and vacuum-drying, keep two hours after mixture in still is homogeneous phase.In this example, polyether glycol is PTMEG1000, the mixture of PPG1000 and thermoplastic polyurethane PB501, at this moment again MDI is added in reactor, open vacuum and stir 80 minutes (stirring velocity 150rpm) under remaining on 100 degrees Celsius, finally add catalyzer DMDEE and silane coupling agent KH560, vacuum stirring discharging after 10 minutes.
We use the same method and have prepared four kinds of different formulas, and list is in table 1.When the reaction is finished prepared by a kind of typical reactive hot-melt.For the present invention, open hour and the final strength of product are most important.In table 2, the test result of these four kinds formulas is listed in wherein.All data show, along with the consumption of PPG reduces, the open hour of formula are shortened widely, elongation at break also decreases, and this kind of tackiness agent is imposed on aluminium and glass, between polycarbonate and stainless steel by us, bondline thickness controls at 3-5cm, preserve 48 hours under 23 degrees Celsius with 50% humidity condition after, the data presentation measured, four kinds of formulas can reach enough bonding strengths.
Table 1 sample A, the formula table of B, C and D
Table 2 sample A, the final strength of B, C and D and the data of open hour
Example two:
As shown in table 3, reactive hot-melt involved in the present invention can by formula preparation in table, polyether glycol be heated to 100 degrees Celsius and be mixed in (stirring velocity is 300rpm) in reactor, and vacuum-drying, keep two hours after mixture in still is homogeneous phase.In this example, polyether glycol is PTMEG1000, the mixture of PPG1000 and thermoplastic polyurethane PB501, at this moment again MDI is added in reactor, open vacuum and stir 80 minutes (stirring velocity 150rpm) under remaining on 100 degrees Celsius, finally add the isocyanic ester DESMODURN3300 of three-functionality-degree, catalyzer DMDEE and silane coupling agent KH560, vacuum stirring discharging after 10 minutes.
We use the same method and have prepared four kinds of different formulas, and list is in table 3.When the reaction is finished prepared by a kind of typical reactive hot-melt.For the present invention, open hour and the final strength of product are most important.In table 4, the test result of these four kinds formulas is listed in wherein.All data show, along with the consumption of three-functionality-degree isocyanic ester reduces, the open hour of formula are extended, elongation at break is enhanced, and this kind of tackiness agent is imposed on aluminium and glass, between polycarbonate and stainless steel by us, bondline thickness controls at 3-5cm, preserve 48 hours under 23 degrees Celsius with 50% humidity condition after, the data measured show equally, and this several formula can reach enough bonding strengths.
Table 3 sample E, the formula table of F, G and H
Table 4 sample E, the final strength of F, G and H and the data of open hour
Claims (9)
1. an adhesive for polyurethane, it is characterized in that: described adhesive for polyurethane is made up of following raw material by mass percentage: both mixture 20%-36% of polyether glycol or polyester polyol or more, thermoplastic resin 48%-70%, isocyanic ester 13%-15%, catalyzer 0.5% and silane coupling agent 1%, above per-cent summation is 100%.
2. adhesive for polyurethane according to claim 1, is characterized in that: described polyether glycol is selected from PPG, PTMEG or PEG, and wherein PPG weight-average molecular weight is 400-5000, PTMEG weight-average molecular weight is 500-4000.
3. adhesive for polyurethane according to claim 1, is characterized in that: described polyester polyol is synthesized by a kind of in the one in AA, PA and DEG, NPG, MPG or their mixture; Polyester polyol weight-average molecular weight is 1000-5000.
4. adhesive for polyurethane according to claim 1, is characterized in that: described isocyanic ester is polyisocyanates.
5. adhesive for polyurethane according to claim 1, is characterized in that: described thermoplastic resin is the one in Polyurethane Thermoplastic Elastomer, polyacrylic resin, Gum Rosin, polyolefin resin.
6. adhesive for polyurethane according to claim 1, is characterized in that: described isocyanic ester is MDI.
7. adhesive for polyurethane according to claim 1, is characterized in that: described catalyzer is DMDEE.
8. the application of the adhesive for polyurethane according to any one of claim 1-7, is characterized in that: using described adhesive for polyurethane as support pad material.
9. the application of adhesive for polyurethane according to claim 8, is characterized in that: load-bearing when described adhesive for polyurethane is for assembling lightweight part or buffering spacer.
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| CN201510833696.0A CN105315949B (en) | 2015-11-25 | 2015-11-25 | One kind has very short open hour and elastomeric adhesive for polyurethane and its application |
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| CN201510833696.0A CN105315949B (en) | 2015-11-25 | 2015-11-25 | One kind has very short open hour and elastomeric adhesive for polyurethane and its application |
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| CN105315949B CN105315949B (en) | 2018-01-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666439A (en) * | 2018-12-27 | 2019-04-23 | 华威粘结材料（上海）股份有限公司 | A kind of PUR glue composition resistant to high temperature and preparation method thereof |
| CN110184020A (en) * | 2019-06-26 | 2019-08-30 | 惠州市德佑威新材料有限公司 | A kind of high performance water proof polyurethane hot melt and preparation method thereof |
| CN110564354A (en) * | 2019-07-25 | 2019-12-13 | 启东东岳化工有限公司 | Polyurethane adhesive with high initial adhesion for roller coating and preparation method thereof |
| CN110804160A (en) * | 2019-10-10 | 2020-02-18 | 江苏华大新材料有限公司 | Waterborne polyurethane for vacuum forming adhesive and preparation method thereof |
| CN112662358A (en) * | 2020-12-09 | 2021-04-16 | 深圳市美信电子有限公司 | Single-component heat-conducting interface material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033384A (en) * | 2006-03-10 | 2007-09-12 | 国家淀粉及化学投资控股公司 | Reactive hot melt adhesive with non-polymeric aliphatic difunctionals |
| CN102585753A (en) * | 2012-01-16 | 2012-07-18 | 无锡市万力粘合材料有限公司 | Polyurethane hot-melt adhesive for bonding and preparation method thereof |
| CN103087666A (en) * | 2013-03-05 | 2013-05-08 | 河南省科学院化学研究所有限公司 | Reactive type polyurethane hot-melt sealant |
-
2015
- 2015-11-25 CN CN201510833696.0A patent/CN105315949B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033384A (en) * | 2006-03-10 | 2007-09-12 | 国家淀粉及化学投资控股公司 | Reactive hot melt adhesive with non-polymeric aliphatic difunctionals |
| CN102585753A (en) * | 2012-01-16 | 2012-07-18 | 无锡市万力粘合材料有限公司 | Polyurethane hot-melt adhesive for bonding and preparation method thereof |
| CN103087666A (en) * | 2013-03-05 | 2013-05-08 | 河南省科学院化学研究所有限公司 | Reactive type polyurethane hot-melt sealant |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666439A (en) * | 2018-12-27 | 2019-04-23 | 华威粘结材料（上海）股份有限公司 | A kind of PUR glue composition resistant to high temperature and preparation method thereof |
| CN110184020A (en) * | 2019-06-26 | 2019-08-30 | 惠州市德佑威新材料有限公司 | A kind of high performance water proof polyurethane hot melt and preparation method thereof |
| CN110564354A (en) * | 2019-07-25 | 2019-12-13 | 启东东岳化工有限公司 | Polyurethane adhesive with high initial adhesion for roller coating and preparation method thereof |
| CN110804160A (en) * | 2019-10-10 | 2020-02-18 | 江苏华大新材料有限公司 | Waterborne polyurethane for vacuum forming adhesive and preparation method thereof |
| CN112662358A (en) * | 2020-12-09 | 2021-04-16 | 深圳市美信电子有限公司 | Single-component heat-conducting interface material and preparation method and application thereof |
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| CN105315949B (en) | 2018-01-05 |
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Effective date of registration: 20201209 Address after: Room w704a, Taiwan Science and technology enterprise development center, No. 88, Xiangxing Road, Xiangan Industrial Zone, Xiamen City, Fujian Province Patentee after: XIAMEN WELDTONE TECHNOLOGY Co.,Ltd. Address before: Room w702a, Taiwan Science and technology enterprise development center, Xiamen Torch High tech Zone (Xiang'an) Industrial Zone, Xiamen City, Fujian Province Patentee before: XIAMEN WELDBOND NEW MATERIAL Co.,Ltd. |
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Address after: 361000 room w704a, Taiwan Science and technology enterprise education center, No. 88, Xiangxing Road, Xiamen Torch High tech Zone (Xiang'an) Industrial Zone, Xiamen, Fujian Patentee after: Weiertong (Xiamen) Technology Co.,Ltd. Address before: Room w704a, Taiwan Science and technology enterprise development center, No. 88, Xiangxing Road, Xiangan Industrial Zone, Xiamen City, Fujian Province Patentee before: XIAMEN WELDTONE TECHNOLOGY Co.,Ltd. |
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Address after: No. 1-2, Xincuo North Road, Tongxianggao New Town, Xiamen Torch High-tech Zone, Xiamen, Fujian Province, 361000 Patentee after: Weiertong Technology Co.,Ltd. Address before: 361000 room w704a, Taiwan Science and technology enterprise education center, No. 88, Xiangxing Road, Xiamen Torch High tech Zone (Xiang'an) Industrial Zone, Xiamen, Fujian Patentee before: Weiertong (Xiamen) Technology Co.,Ltd. |