CN102115657B - High-hardness quickly-setting polyurethane hot melt adhesive and preparation method thereof - Google Patents
High-hardness quickly-setting polyurethane hot melt adhesive and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a high-hardness quickly-setting polyurethane hot melt adhesive and a preparation method thereof. The polyurethane hot melt adhesive comprises the following raw material components in percentage by weight: 50.0-86.0 percent of polyester polyol, 1-20.0 percent of micromolecular chain extender, 12.0-24.0 percent of diisocyanate, 0.01-0.50 percent of catalyst, 0.1-1.0 percent of antioxidant, 0.1-1.0 percent of optical stabilizer and 0.5-4 percent of inorganic nano powder. The polyurethane hot melt adhesive prepared by using a reactive-type double screw extruder method has strong bonding force, high setting speed, short opening time and high tearing resistance, and can be widely applied to manufacturing of various shoes such as leather shoes, travel shoes and the like, and cases and bags.
Description
Technical field
The present invention relates to the polyurethane hot melt of a kind of high rigidity, fast shaping, and the method for preparing the polyurethane hot melt of this high rigidity, fast shaping.
Background technology
Thermoplastic polyurethane hot melt adhesive be with line style or with the polymer diatomic alcohol of a small amount of side chain, chainextender and the isocyanate reaction of low relative molecular mass, give birth to catenulate macromolecular compound carbamate, i.e. urethane.Be heated to certain temperature fusing during use and coat substrate surface, through cooling and solidify, solidification process mainly utilizes the hydrogen bond action in composition and physical crosslinking occurs, and has good toughness and bonding strength.Thermoplastic polyurethane hot melt adhesive is heated and loses hydrogen bond action and become viscous liquid after certain temperature, recover again original physical property after cooling, thereby utilize this specific character can repeatedly heat-cooling curing, it is higher that this kind hot melt adhesive has bonding strength, the advantage such as low temperature resistant, wear-resisting, and work reliability is high, chemistry and the physicals homogeneity good, high comprehensive performance, technique for sticking is easy, less wastage, do not contain organic solvent, belong to environment-friendly material, and the product of producing can be recovered or second stage employ.
But the shortcomings such as polyurethane hot melt in the market all exists curing speed slow, and shaping time is long, and hardness is lower can not satisfy the industrialization pipelining requirement of quick assembling.
In the prior art, more for the preparation of the urethane report with very fast curing speed, a kind of quick-setting aliphatics hot melt adhesive is disclosed as patent US5965685A, EP0421154 discloses a kind of elastic polyurethane system of rapid crystallization; Although these inventions are by selecting suitable raw material and proportioning can prepare the urethane that shortens set time, it has just shortened the open hour of urethane, does not fundamentally solve the phenomenon that typing speed is slow, hardness is low of polyurethane hot melt.
Summary of the invention
The object of the present invention is to provide a kind of base materials such as bonding PVC, rubber, PU, corium, TPR that are applicable to, have that curing speed is fast, fast and good, the polyurethane hot melt adhesives that hardness is high of typing.
Another object of the present invention is to provide the preparation method of above-mentioned polyurethane hot melt.
For achieving the above object, the present invention adopts following technical scheme:
The present invention proposes the polyurethane hot melt of a kind of high rigidity, fast shaping, comprise the feed composition of following weight percent:
Polyester polyol 50.0～86.0%
Small molecule chain extender 1～20.0%
Vulcabond 12.0～24.0%
Catalyzer 0.01%～0.50%
Antioxidant 0.1～1.0%
Optical stabilization agent 0.1～1.0%
Inorganic nanometer powder 0.5～4.0%.
For reaching another purpose, the present invention adopts following technical scheme:
The preparation method of the polyurethane hot melt of a kind of high rigidity, fast shaping comprises the following steps successively:
1) dibasic alcohol and diprotic acid 100-260 ℃ of lower polycondensation, dehydration about 20 hours, prepare acid number less than 2, and molecular weight is the hydroxyl telechelic polyester glycol of 2000-6000;
2) the above-mentioned polyester polyol that makes is added in forcing machine by weight with isocyanic ester, catalyzer, antioxidant and optical stabilization agent mix, react; The material charging region temperature of forcing machine is 90-150 ℃, reaction zone temperature 140-250 ℃, extrudes 160-280 ℃ of district's temperature, reaction times 3-8 minute;
3) extrude at last, cooling granulation.
By technique scheme, the beneficial effect that the present invention has is:
The high rigidity that obtains by the present invention, the polyurethane thermosol of fast shaping have a bonding force strong, and typing is fast, the open hour are short, and the anti tear degree is strong, and production technique is simple, easily controls; Can be widely used in leather shoes, the various footwear such as sneakers, the making of case and bag.
Embodiment
The polyurethane hot melt of high rigidity of the present invention, fast shaping comprises following feed composition: mass percent is 50.0～86.0% polyester polyol, 1.0～20.0% small molecule chain extender, 12.0～24.0% vulcabond, 0.01%～0.50% catalyzer, 0.1～1.0% antioxidant, 0.1～1.0% optical stabilization agent and 0.5～4% inorganic nanometer powder.
Wherein, described polyester polyol is to be prepared into 100-260 ℃ of lower polycondensation the hydroxyl telechelic polyester glycol that the molecule amount is 2000-6000 by lower molecular weight aliphatic dihydroxy alcohol and aliphatic dicarboxylic acid, aromatic binary carboxylic acid.Wherein, aliphatic dicarboxylic acid comprises hexanodioic acid, fumaric acid, toxilic acid, suberic acid etc.; Aromatic binary carboxylic acid comprises phthalic acid, terephthalic acid, m-phthalic acid etc.; Described polyester polyol lower molecular weight aliphatic dihydroxy alcohol comprises ethylene glycol, glycol ether, propylene glycol, methyl propanediol, BDO, 1,6-hexylene glycol, 1,3 butylene glycol, 1,5 pentanediol, dodecyl hexylene glycol etc.
Wherein, described small molecule chain extender is selected from ethylene glycol, glycol ether, propylene glycol, methyl propanediol, 1,4-butyleneglycol, 1,6-hexylene glycol, 1,3 butyleneglycols, 1, the combination that any in two (2-hydroxyethyl) ethers of 5 pentanediols, Isosorbide-5-Nitrae-cyclohexyl dimethanol, quinhydrones and dipropylene glycol or they are at least two kinds.Wherein BDO is preferred small molecule chain extender.
Wherein, described vulcabond is preferably fat (ring) adoption isocyanic ester, comprise 4,4 '-dicyclohexyl methane diisocyanate (RMDI), 1,6-hexylidene diisocyanate (HDI), isophorone diisocyanate (IPDI), 1, the mixture that any in 4-cyclohexyl diisocyanate (CHDI) and a tetramethylxylene diisocyanate (M-TMXDI) or they are at least two kinds, further preferred HDI and MDI, most preferably MDI.
The production of polyurethane elastomer also needs to add catalyzer, to accelerate its polyreaction.Due to the property of this product, need organo-tin compound and tertiary amine to mix and just can reach.Organo-tin compound comprises dibutyl tin laurate and stannous octoate, the preferred triethylamine of tertiary amine, triethylenediamine, trolamine etc., and the ratio of organo-tin compound and tertiary amine is 3: 1～1: 1.
The Main Function of antioxidant is the thermal oxidation of retardance urethane, stops the chain-breaking reaction of the polymkeric substance that is brought out by oxygen, and decomposes the hydrogen peroxide that generates.Described antioxidant is selected from the combination of at least two kinds of any or they in antioxidant 264, antioxidant 1010, antioxidant 1076, antioxidant 1026 and antioxidant 245.
Wherein, described optical stabilization agent is selected from the mixture of at least two kinds of any or they in UV-9, UV-327, UV-328, UV-329, UV-531.
Wherein, described inorganic nanometer powder is thermal silica, inorganic carbonate calcium, titanium dioxide of 10～50 nanometers etc.Inorganic nanometer powder not only can promote the crystallization velocity of polyurethane hot melt itself, shortens set time, can also form tridimensional network with adherend, and the reactive force of increase and adherend can improve bonding stripping strength.
Embodiment 1
With 450Kg1,4-butyleneglycol and 380Kg hexanodioic acid, 282Kg phthalic acid add heat temperature raising and logical N in stainless steel cauldron
2Protection; when temperature rises to 150 ℃; the beginning water outlet; the water outlet speed control is at 30-50ml/min, and the temperature of reflux tower tower top is controlled between 100-102 ℃, then slowly heats up dehydration reaction 8-10 hour; in 220 ℃; 0.013MPA lower dehydration reaction 8 hours obtains acid number less than 2, the hydroxyl telechelic polyester glycol of molecular weight 4000.
With above-mentioned hydroxyl telechelic polyester glycol 100Kg and 0.8Kg catalyzer (mixed solution of 0.4Kg dibutyl tin laurate and 0.4Kg triethylamine), 4.72Kg1,6-hexylene glycol, 1Kg antioxidant 1010, after 1Kg optical stabilization agent UV328,4Kg fumed silica mix, continuously flow in twin screw extruder in the ratio of 8.9: 1 with 11.8Kg TDI again and mix, react, 90 rev/mins of screw speeds, 130 ℃ of material charging region temperature, 190 ℃ of reaction zone temperatures are extruded 240 ℃ of district's temperature.Extrude at last cooling granulation, obtain the polyurethane-hot melt micelle of high rigidity, fast shaping.Product property sees Table 1.
Embodiment 2
With 767Kg1,6-hexylene glycol and 453Kg suberic acid, 498Kg m-phthalic acid add heat temperature raising and logical N in stainless steel cauldron
2Protection; when temperature rises to 160 ℃; the beginning water outlet; the water outlet speed control is at 30-50ml/min, and the temperature of reflux tower tower top is controlled between 100-102 ℃, then slowly heats up dehydration reaction 8-10 hour; in 230 ℃; 0.013MPA lower dehydration reaction 10 hours obtains acid number less than 2, the hydroxyl telechelic polyester glycol of molecular weight 6000.
With above-mentioned hydroxyl telechelic polyester glycol 100Kg and 0.8Kg catalyzer (mixed solution of 0.6Kg dibutyl tin laurate and 0.2Kg triethylamine), 6.75Kg1,4-butyleneglycol, 1Kg antioxidant 1010, after 1Kg optical stabilization agent UV328,4Kg titanium dioxide mix, continuously flow in twin screw extruder in the ratio of 4.6: 1 with 23.0Kg MDI again and mix, react, 70 rev/mins of screw speeds, 150 ℃ of material charging region temperature, 210 ℃ of reaction zone temperatures are extruded 250 ℃ of district's temperature.Extrude at last cooling granulation, obtain the polyurethane-hot melt micelle of high rigidity, fast shaping.Product property sees Table 1.
Embodiment 3
With 613Kg1,5 pentanediols and 438Kg hexanodioic acid, 332Kg phthalic acid add heat temperature raising and logical N in stainless steel cauldron
2Protection; when temperature rises to 140 ℃; the beginning water outlet; the water outlet speed control is at 30-50ml/min, and the temperature of reflux tower tower top is controlled between 100-102 ℃, then slowly heats up dehydration reaction 8-10 hour; in 220 ℃; 0.013MPA lower dehydration reaction 8 hours obtains acid number less than 2, the hydroxyl telechelic polyester glycol of molecular weight 5000.
with above-mentioned hydroxyl telechelic polyester glycol 100Kg and 0.8Kg catalyzer (mixed solution of 0.4Kg dibutyl tin laurate and 0.4Kg triethylamine), 2.95Kg mix small molecule chain extender (2.19Kg1, the mixed solution of 6-butyleneglycol and 0.76Kg ethylene glycol), the 1Kg antioxidant 1010,1Kg optical stabilization agent UV328, after 2Kg inorganic carbonate calcium mixes, continuously flow in twin screw extruder in the ratio of 10: 1 with 10Kg IPDI again and mix, reaction, 80 rev/mins of screw speeds, 120 ℃ of material charging region temperature, 200 ℃ of reaction zone temperatures, extrude 230 ℃ of district's temperature.Extrude at last cooling granulation, obtain the polyurethane-hot melt micelle of high rigidity, fast shaping.Product property sees Table 1.
Embodiment 4
With 776Kg1; 6-hexylene glycol and 680Kg suberic acid, 265Kg phthalic acid add heat temperature raising and logical N2 protection in stainless steel cauldron; when temperature rises to 150 ℃, the beginning water outlet, the water outlet speed control is at 30-50ml/min; the temperature of reflux tower tower top is controlled between 100-102 ℃; then slowly heated up dehydration reaction 8-10 hour, in 230 ℃, under 0.013MPA, dehydration reaction is 10 hours; obtain acid number less than 2, the hydroxyl telechelic polyester glycol of molecular weight 5000.
With above-mentioned hydroxyl telechelic polyester glycol 100Kg and 0.8Kg catalyzer (mixed solution of 0.5Kg dibutyl tin laurate and 0.3Kg triethylamine), 4.51Kg1, the 4-butyleneglycol, the 1Kg antioxidant 1010, after 1Kg optical stabilization agent UV328,5Kg fumed silica mix, continuously flow in twin screw extruder in the ratio of 5.8: 1 with 17.85Kg MDI again and mix, react, 90 rev/mins of screw speeds, 150 ℃ of material charging region temperature, 190 ℃ of reaction zone temperatures are extruded 220 ℃ of district's temperature.Extrude at last cooling granulation, obtain the polyurethane-hot melt micelle of high rigidity, fast shaping.Product property sees Table 1.
Table 1 product physicals result
As can be seen from Table 1, the high hardness polyurethane hot melt adhesive that above-mentioned four different embodiment obtain all has a bonding force strong, typing is fast, the open hour are short, and the anti tear degree is strong, can widely apply to be leather shoes, the various footwear such as sneakers, the making of case and bag, paper etc.
The above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, therefore every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does according to technical spirit of the present invention.
Claims (9)
1. the polyurethane hot melt of a high rigidity, fast shaping, is characterized in that, is comprised of the feed composition of following weight percent:
Described polyester polyol is to be prepared into 100-260 ℃ of lower polycondensation the hydroxyl telechelic polyester glycol that the molecule amount is 2000-6000 by lower molecular weight aliphatic dihydroxy alcohol and aliphatic dicarboxylic acid, aromatic binary carboxylic acid;
Described aliphatic dicarboxylic acid is adipic acid.
2. polyurethane hot melt according to claim 1, it is characterized in that: described aromatic binary carboxylic acid comprises phthalic acid, terephthalic acid or m-phthalic acid; Described lower molecular weight aliphatic dihydroxy alcohol comprises ethylene glycol, glycol ether, propylene glycol, methyl propanediol, BDO, 1,6-hexylene glycol, 1,3 butylene glycol, 1,5-PD or dodecyl hexylene glycol.
3. polyurethane hot melt according to claim 1, it is characterized in that: described small molecule chain extender is selected from ethylene glycol, glycol ether, propylene glycol, methyl propanediol, 1,4-butyleneglycol, 1,6-hexylene glycol, 1,3-butyleneglycol, 1, any in 5-pentanediol, Isosorbide-5-Nitrae-cyclohexyl dimethanol, two (2-hydroxyethyl) ethers of quinhydrones, dipropylene glycol, or the combination of at least two kinds.
4. polyurethane hot melt according to claim 1, it is characterized in that: described vulcabond is 4,4 '-dicyclohexyl methane diisocyanate, 1,6-hexylidene diisocyanate, isophorone diisocyanate, 1, any in 4-cyclohexyl diisocyanate and a tetramethylxylene diisocyanate, or the combination of at least two kinds.
5. polyurethane hot melt according to claim 1, it is characterized in that: described catalyzer is the mixture of organo-tin compound and tertiary amine.
6. polyurethane hot melt according to claim 1, it is characterized in that: described antioxidant is selected from any in antioxidant 264, antioxidant 1010, antioxidant 1076 and antioxidant 245, or the combination of at least two kinds.
7. polyurethane hot melt according to claim 1, it is characterized in that: described optical stabilization agent is selected from any in optical stabilization agent UV-9, optical stabilization agent UV-327, optical stabilization agent UV-328, optical stabilization agent UV-329 and optical stabilization agent UV-531, or the combination of at least two kinds.
8. according to claim 1 polyurethane hot melt, it is characterized in that: described inorganic nanometer powder is thermal silica, inorganic carbonate calcium or the titanium dioxide of 10～50 nanometers.
9. the preparation method of the polyurethane hot melt of the described high rigidity of arbitrary claim, fast shaping in claim 1 to 8 comprises the following steps successively:
1) dibasic alcohol and di-carboxylic acid 100-260 ℃ of lower polycondensation, dehydration about 20 hours, prepare acid number less than 2, and molecular weight is the hydroxyl telechelic polyester glycol of 2000-6000;
2) the above-mentioned polyester polyol that makes is added in forcing machine by weight with vulcabond, catalyzer, antioxidant, small molecule chain extender, inorganic nanometer powder and optical stabilization agent mix, react; The material charging region temperature of forcing machine is 90-150 ℃, reaction zone temperature 140-250 ℃, extrudes 160-280 ℃ of district's temperature, reaction times 3-8 minute;
3) extrude at last, cooling granulation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102942669A (en) * | 2012-11-09 | 2013-02-27 | 浙江德斯泰塑胶有限公司 | High-strength polyurethane film for laminated glass and preparation method thereof |
| CN103074023A (en) * | 2013-01-24 | 2013-05-01 | 浙江晶茂科技有限公司 | Adhesive composition, preparation method of adhesive composition, and application of adhesive composition in solar cell back plate |
| CN104212403B (en) * | 2014-09-28 | 2016-09-14 | 东莞宏石功能材料科技有限公司 | A kind of polyurethane hot melt of high rigidity and preparation method thereof |
| CN104212404B (en) * | 2014-09-28 | 2016-08-24 | 东莞宏石功能材料科技有限公司 | A kind of polyurethane hot melt for seamless integration vamp and preparation method thereof |
| CN104610902B (en) * | 2015-02-12 | 2018-01-30 | 厦门誉匠复合材料有限公司 | Quick solidify afterwards polyurethane hot melt and preparation method thereof |
| CN104830264B (en) * | 2015-05-22 | 2018-06-05 | 佛山市高明恒祥化工树脂有限公司 | A kind of solvent-borne type hydrolysis resists cold, and fusing point is low to crystallize fast polyurethane hot melt manufacturing method |
| CN109156972A (en) * | 2018-08-30 | 2019-01-08 | 廖伟汉 | A kind of imitation genuine fecula is flutterred |
| CN113583612A (en) * | 2021-08-09 | 2021-11-02 | 广东省京极盛新材料科技有限公司 | PUR hot melt adhesive for multilayer solid wood composite floor and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664006A (en) * | 2005-02-05 | 2005-09-07 | 南京工业大学 | Polyurethane and process for preparing nano composite materials thereof |
| CN1955246A (en) * | 2005-10-19 | 2007-05-02 | 辽宁石油化工大学 | Nano polyurethane adhesive and its preparation process |
| CN101368079A (en) * | 2008-09-25 | 2009-02-18 | 广州市鹿山化工材料有限公司 | Polyurethane hot melt adhesive with fast crystallization and preparation method thereof |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664006A (en) * | 2005-02-05 | 2005-09-07 | 南京工业大学 | Polyurethane and process for preparing nano composite materials thereof |
| CN1955246A (en) * | 2005-10-19 | 2007-05-02 | 辽宁石油化工大学 | Nano polyurethane adhesive and its preparation process |
| CN101368079A (en) * | 2008-09-25 | 2009-02-18 | 广州市鹿山化工材料有限公司 | Polyurethane hot melt adhesive with fast crystallization and preparation method thereof |
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Effective date of registration: 20201104 Address after: 510530 No. 22 Pubei Road, Yunpu Industrial Zone, Huangpu District, Guangzhou City, Guangdong Province, 1 building, 2 building, 3 building and 4 Building Patentee after: GUANGZHOU LUSHAN NEW MATERIALS Co.,Ltd. Patentee after: Jiangsu Lushan New Material Co.,Ltd. Address before: 510530, No. 22, Po Bei Road, Po Po Industrial Zone, Whampoa District, Guangdong, Guangzhou Patentee before: GUANGZHOU LUSHAN NEW MATERIALS Co.,Ltd. |