CN102585752A - Recovery polyethylene terephthalate (PET)-base adhesive, and preparation method and application thereof - Google Patents
Recovery polyethylene terephthalate (PET)-base adhesive, and preparation method and application thereof Download PDFInfo
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- CN102585752A CN102585752A CN2011104620739A CN201110462073A CN102585752A CN 102585752 A CN102585752 A CN 102585752A CN 2011104620739 A CN2011104620739 A CN 2011104620739A CN 201110462073 A CN201110462073 A CN 201110462073A CN 102585752 A CN102585752 A CN 102585752A
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Abstract
The invention relates to a recovery polyethylene terephthalate (PET)-base adhesive, and a preparation method and application thereof. A component A is prepared from toluene diisocynate, propylene glycol polyether polyol 2000, and propylene glycol polyether polyol 3000, and a component B is prepared from recovery polyethylene terephthalate, 1,4-butanediol, succinic anhydride, thionyl chloride, and primaryaliphaticamine. The component A and the component B are mixed at room temperature and are used for adhering a color steel plate and a polystyrene foam plate.
Description
Technical field
The present invention relates to a kind of recovery PET base adhesive, belong to polymer gluing agent technical field, be specifically related to a kind of a kind of recovery PET base adhesive that is used for gluing color steel and polystyrene foam plate and preparation method thereof.
Background technology
Two-layer color steel is made surface layer; Polystyrene foam plate is made sandwich layer; Through robotization continuous forming machine or batch process route; The composite sheet that color steel and polystyrene foam plate gluing is obtained together with sizing agent; Light weight, heat insulation, sound insulation, waterproof, antidetonation, fire prevention, life-span are long, non-maintaining, elegant in appearance because of having, construction characteristics such as completions once, are widely used in that industry is built with covil construction, warehouse, special type, roofing, metope and the decorating inner and external walls in large-span steel house, villa, exhibition center, old building add layer, combined moving room etc.
The elastomer substances that is generated by isocyanic ester and aminoresin reaction is called polyureas.The elastomer substances that is generated by isocyanic ester and hydroxy resin reaction is called urethane.Polyureas is compared with urethane; Have following characteristics: (1) isocyanic ester and aminoresin reactive behavior are high; Even do not use catalyzer, polyureas also can react in room temperature or low temperature completion of following moment, thereby; Its curing speed is faster, and the hydroxy component of urethane then must contain the catalyzer that is useful on the raising reactive behavior; (2) speed of response of isocyanate component and aminoresin component is higher than the speed of response of isocyanic ester and water in the polyureas; Thereby overcome urethane effectively in construction process; Because of foaming, the micropore that the influence of envrionment temperature and humidity causes, the defective that material property is sharply descended; (3) polarity of the urea groups of isocyanic ester and aminoresin reaction generation will be higher than the carbamate groups of isocyanic ester and hydroxyl formation; Therefore; The interaction force of intermolecular in the polyurea structure (being interchain) is stronger, and being separated of hard segment and soft chain segment is more obvious, and the melt temperature in hard segment zone is also just higher compared with polyurethane structural in the polymkeric substance; Show that on the performance of elastomeric article, the chemical resistant properties of polyureas, hydrolytic resistance, permeability resistance and resistance toheat etc. are superior to urethane.
One of two big main raw materials of synthetic polyureas are amino-polyethers; Application number is the patent of CN201010538537.5; A kind of preparation method of end alkylamino polyethers is disclosed; It is synthetic to be under Pd/C catalysis, is that 4～8MPa, temperature are 100～160 ℃ and carry out alkylated reaction 2～8h with Amino Terminated polyether(ATPE), alkylating agent and hydrogen in pressure, generates end alkylamino polyethers; Application number is the patent of CN201110097996.9, will pass through N, and after the activation of N-dicarbapentaborane imidazoles, direct and quadrol carries out next step reaction, and product is through revolving steaming, and dialysis after the lyophilize, gets the Amino Terminated polyether(ATPE) height.The raw material that these two kinds of preparing methods use is the petrochemical complex resource, prepares amino-polyether with renewable resource, has great importance.
Polyethylene terephthalate (PET) is to be polymerized by terephthalic acid or DMT. Dimethyl p-benzenedicarboxylate and terepthaloyl moietie, has good mechanical performance, dimensional stability, electrical insulating property, optical transparence and nonpoisonous and tasteless etc.Because polyethylene terephthalate has these good physics, chemistry and mechanical property, has been widely used in fields such as food product pack, fiber, film, sheet base and electrical apparatus insulation material at present.Add up according to the PET world convention; Since 2000, world's PET industry got into the fast-developing phase of a new round, and China PET throughput and output also increase substantially; 2003,2004 and 2005; China PET output has reached 9,730,000 tons, 1,162 ten thousand tons and 1,253 ten thousand tons respectively, and annual output continues to increase.Yet; Continuous increase along with carbonated drink bottle, mineral water bottle, fruit juice milk, medicine and some other PET packaging vessel usage quantity; Also brought the increase of petroleum resources consumptions; Therefore, how a large amount of waste PETs being reclaimed recycling and efficiently utilize, is an important topic of PET resources circulation economy.
Summary of the invention
One of technical assignment of the present invention is in order to remedy the deficiency of prior art, provides a kind of to two substrate interface bonding actions are high, raw materials cost is low high-performance recovered PET base adhesive.
Two of technical assignment of the present invention provides the preparation method of this recovery PET base adhesive, its technology of preparing mature and reliable.
Three of technical assignment of the present invention provides the purposes of this recovery PET base adhesive.
Technical scheme of the present invention is following:
Recovery PET base adhesive of the present invention, by the feedstock production of following mass parts:
The A component raw material:
Tolylene diisocyanate 100
Ucar 35 polyether glycol-2,000 20～50
Ucar 35 polyether glycol-3,000 40～80
The B component raw material:
The further preferred PET base adhesive that reclaims, by the feedstock production of following mass parts:
The A component raw material:
Tolylene diisocyanate 100
Ucar 35 polyether glycol-2,000 30～40
Ucar 35 polyether glycol-3,000 50～60
The B component raw material:
Above-described Ucar 35 polyether glycol-2000, molecular weight 2000, hydroxyl value 54.5～57.5mgKOH/g, the present invention purchases petrochemical corporation's the 3rd petroleum chemical plant in Tianjin.
Above-described Ucar 35 polyether glycol-3000, molecular weight 3000, hydroxyl value 36～39mgKOH/g, the present invention purchases petrochemical corporation's the 3rd petroleum chemical plant in Tianjin.
Above-described 1, the 4-butyleneglycol is that recovery PET macromole partial alcoholysis is generated low molecular end hydroxyl polyester;
Above-described Succinic anhydried, with the hydroxyl generation esterification open loop on the hydroxyl telechelic polyester, the carboxyl of generation continues with hydroxyl telechelic polyester and unreacted 1, and the further esterification of the hydroxyl on the 4-butyleneglycol makes hydroxyl telechelic polyester molecule chain extension, and molecular weight increases.
Above-described antimony acetate and methanesulfonic zinc are composite catalyst; This catalyzer quickens the hydroxyl telechelic polyester esterification, while catalysis hydroxyl telechelic polyester and 1, the intermolecular etherificate of 4-butyleneglycol; Generate the hydroxyl polyester polyethers, composite catalyst speeds up esterification and etherification reaction.
Above-described THIONYL CHLORIDE 97 is the chloro agent of hydroxyl in the hydroxyl telechelic polyester pfpe molecule, and hydroxyl telechelic polyester polyethers and THIONYL CHLORIDE 97 reaction generate chloro polyester polyethers.
It is one of following that above-described aliphatics is selected from: methylamine, ethamine, propylamine and butylamine; Armeen is separated chloro polyester polyethers generation ammonia, generates amino polyester polyethers.
By finding out above the composition; Recovery PET base adhesive of the present invention belongs to the two-pack sizing agent; The A component uses raw material to be made up of with Ucar 35 polyether glycol-3000 tolylene diisocyanate, Ucar 35 polyether glycol-2000; The B component is raw materials used, and 4-butyleneglycol, composite catalyst antimony acetate and methanesulfonic zinc, THIONYL CHLORIDE 97, armeen are formed by reclaiming PET, Succinic anhydried, 1, form with the raw material of general urethane or polyureas and proportioning has had very marked difference.
This reclaims the PET base adhesive, and the A component is isocyanate terminated polyurethane prepolymer, and the free isocyanate mass content is 17～21%; The B component is amino polyester polyethers, and the amine value is 100～150mgKOH/g, and viscosity is 1500～3500mPa.s, and molecular weight is 2500～4000.
The preparation method of the recovery PET base adhesive of the invention described above, step is following:
(1) preparation A component: in reaction kettle, add tolylene diisocyanate, Ucar 35 polyether glycol-2000, Ucar 35 polyether glycol-3000 successively, heating; Temperature is controlled at 80 ℃, behind the 3h, when the percentage composition of NCO is constant; Be chilled to room temperature, pack;
(2) preparation B component: in reaction kettle, add and reclaim broken PET, 1, the 4-butyleneglycol, turn on agitator is used the microwave radiation 3～10min of output rating as 500W, makes PET that alcoholysis take place; In reaction kettle, add Succinic anhydried, antimony acetate, methanesulfonic zinc, use the microwave radiation 3～8min of output rating as 500W; Reaction solution is chilled to 0～5 ℃, and after 30～40min added THIONYL CHLORIDE 97, uses the microwave radiation 3～10min of output rating as 500W, excessive THIONYL CHLORIDE 97 was removed in decompression; In reaction kettle, add armeen, use the microwave radiation 3～10min of output rating as 500W after, excessive primary amine is removed in decompression, is chilled to room temperature, adds the aqueous solution neutralization of rare NaOH, suction filtration, drying, discharging, packing;
When (3) using, after quality such as A component and B component are mixed 30min, must reclaim the PET base adhesive.
Above-described tolylene diisocyanate, Ucar 35 polyether glycol-2000, Ucar 35 polyether glycol-3000, recovery PET, 1; 4-butyleneglycol, Succinic anhydried, antimony acetate, methanesulfonic zinc, THIONYL CHLORIDE 97 and armeen are commercially available industrial raw material, can buy in the Chemical market of locality.
Above-described methanesulfonic zinc, the present invention provides preferred manufacturing procedure: in methanesulfonic 96.1g, add the water of 100mL, start and stir; Add zinc oxide 40.7g, backflow 30min after heat suction filtration, filter cake is with the hot wash of 15mL 3 times; Merging filtrate; 100 ℃ of following dry 3h of evaporate to dryness final vacuum, cooling, discharging.
Recovery PET base adhesive of the present invention is applied to gluing color steel and polystyrene foam plate composite sheet.
During use, quality such as A component and B component are mixed 30min after, can evenly be coated with cover gluing material surface through robotization continuous forming machine or batch process route, resin added is 0.5kg/m
2
The gluing test:
The present invention reclaims the PET base adhesive and is applied to gluing color steel and polystyrene foam plate composite sheet, and resin added is 0.5kg/m
2, color steel and PS gluing 1.5h, 90 ℃ of compression shears are peeled off, and polystyrene foam plate interfacial failure rate is 100%.
PET base adhesive of the present invention, technical outstanding characteristics are:
(1) used recovery PET to be raw material; A component-amino polyester the polyethers that has prepared the PET base adhesive; Contain the end secondary amine in this amino polyester polyethers macromolecular structure, this end secondary amine and isocyanate reaction have generated polyureas, and contain urethane in this sizing agent A component; So; Cured layer not only contains polyurethane-base but also contain polyurea based, and this PET base adhesive comes from the synergy of polyurethane-base and polyurea based to the high bonding action of color steel and PS interface, for reclaiming PET new Application Areas and approach is provided.
(2) use microwave radiation to replace routine to add the amino polyester polyethers of hot preparation; Microwave radiation is and the different type of heating of routine heating; Traditional heating is to produce high outside and low outside thermograde with heat conducting mode, and microwave radiation to be hertzian wave act on polar molecule dielectric medium and non-polar molecule dielectric medium produces dipole or dipole newly to arrange; Realize " stirring " of molecular level; The present invention adopts the method for microwave radiation, and amino polyester polyethers preparation time significantly shortens, and preparation efficiency improves greatly.
(3) this preparation raw materials cost is lower, easy to operate, and in addition, this product can be practiced thrift with part and substitute petroleum resources, and its industrialization economic and social benefit is remarkable, to advancing resource and ecotope Sustainable development, has great importance.
Embodiment
Below in conjunction with embodiment the present invention is further described, but protection scope of the present invention not only is confined to embodiment,
The change that this field professional does technical scheme of the present invention all should belong in protection scope of the present invention.
Embodiment 1
Preparation A component: in reaction kettle, add the Ucar 35 polyether glycol-2000 of tolylene diisocyanate 300g, 90g, the Ucar 35 polyether glycol-3000 of 180g successively, heating; Temperature is controlled at 80 ℃; 3.5h the percentage composition of NCO is constant, is chilled to room temperature, packs.
Preparation B component: in reaction kettle, add and reclaim 1 of broken 300g PET, 270g, the 4-butyleneglycol, turn on agitator is used the microwave radiation 4min of output rating as 500W, makes PET that alcoholysis take place; In reaction kettle, add Succinic anhydried 30g, antimony acetate 0.6g, methanesulfonic zinc 1.5g, use the microwave radiation 5min of output rating as 500W; Reaction solution is chilled to 0～5 ℃, and after 30min added THIONYL CHLORIDE 97 60g, uses the microwave radiation 4min of output rating as 500W, excessive THIONYL CHLORIDE 97 was removed in decompression; In reaction kettle, add methylamine 60g, uses the microwave radiation 4min of output rating as 500W after, excessive methylamine is removed in decompression, is chilled to room temperature, adds the aqueous solution neutralization of rare NaOH, suction filtration, drying, discharging is packed.
When (3) using, quality such as A component and B component are mixed and are got final product.
Embodiment 2
(1) preparation A component: in reaction kettle, add tolylene diisocyanate 300g, 120g Ucar 35 polyether glycol-2000,150g Ucar 35 polyether glycol-3000 successively, heating; Temperature is controlled at 80 ℃; It is constant that 3h records the percentage composition of NCO, is chilled to room temperature, packs.
(2) preparation B component: in reaction kettle, add and reclaim 1 of broken 300g PET, 300g, the 4-butyleneglycol, turn on agitator is used the microwave radiation 10min of output rating as 500W, makes PET that alcoholysis take place; In reaction kettle, add Succinic anhydried 55g, antimony acetate 1.5g, methanesulfonic zinc 0.6g, use the microwave radiation 8min of output rating as 500W; Reaction solution is chilled to 0～5 ℃, and after 40min added THIONYL CHLORIDE 97 90g, uses the microwave radiation 10min of output rating as 500W, excessive THIONYL CHLORIDE 97 was removed in decompression; In reaction kettle, add butylamine 130g, uses the microwave radiation 10min of output rating as 500W after, excessive butylamine is removed in decompression, is chilled to room temperature, adds the aqueous solution neutralization of rare NaOH, suction filtration, drying, discharging is packed.
When (3) using, quality such as A component and B component are mixed and are got final product.
Embodiment 3
(1) preparation A component: in reaction kettle, add tolylene diisocyanate 300g, 105g Ucar 35 polyether glycol-2000,165g Ucar 35 polyether glycol-3000 successively, heating; Temperature is controlled at 80 ℃; It is constant that 4h records the percentage composition of NCO, is chilled to room temperature, packs.
(2) preparation B component: in reaction kettle, add and reclaim 1 of broken 300g PET, 285g, the 4-butyleneglycol, turn on agitator is used the microwave radiation 7min of output rating as 500W, makes PET that alcoholysis take place; In reaction kettle, add Succinic anhydried 33g, antimony acetate 1.0g, methanesulfonic zinc 1.0g, use the microwave radiation 6min of output rating as 500W; Reaction solution is chilled to 0～5 ℃, and after 35min added THIONYL CHLORIDE 97 75g, uses the microwave radiation 7min of output rating as 500W, excessive THIONYL CHLORIDE 97 was removed in decompression; In reaction kettle, add ethamine 100g, uses the microwave radiation 6min of output rating as 500W after, excessive ethamine is removed in decompression, is chilled to room temperature, adds the aqueous solution neutralization of rare NaOH, suction filtration, drying, discharging is packed.
When (3) using, quality such as A component and B component are mixed and are got final product.
Claims (5)
1. one kind is reclaimed the PET base adhesive, and its characteristic is by the feedstock production of following mass parts:
The A component raw material:
Tolylene diisocyanate 100
Ucar 35 polyether glycol-200020～50
Ucar 35 polyether glycol-300040～80
The B component raw material:
Described Ucar 35 polyether glycol-2000, molecular weight 2000, hydroxyl value 54.5～57.5mgKOH/g; Described Ucar 35 polyether glycol-3000, molecular weight 3000, hydroxyl value 36～39mgKOH/g; It is one of following that described armeen is selected from: methylamine, ethamine, propylamine and butylamine.
2. recovery PET base adhesive as claimed in claim 1 is characterized in that the feedstock production by following mass parts:
The A component raw material:
Tolylene diisocyanate 100
Ucar 35 polyether glycol-2,000 30～40
Ucar 35 polyether glycol-3,000 50～60
The B component raw material:
3. preparation method who reclaims the PET base adhesive, step is following:
(1) preparation A component: in reaction kettle, add tolylene diisocyanate, Ucar 35 polyether glycol-2000, Ucar 35 polyether glycol-3000 successively, heating; Temperature is controlled at 80 ℃, behind the 3h, when the percentage composition of NCO is constant; Be chilled to room temperature, pack;
(2) preparation B component: in reaction kettle, add and reclaim broken PET, 1, the 4-butyleneglycol, turn on agitator is used the microwave radiation 3～10min of output rating as 500W, makes PET that alcoholysis take place; In reaction kettle, add Succinic anhydried, antimony acetate, methanesulfonic zinc, use the microwave radiation 3～8min of output rating as 500W; Reaction solution is chilled to 0～5 ℃, and after 30～40min added THIONYL CHLORIDE 97, uses the microwave radiation 3～10min of output rating as 500W, excessive THIONYL CHLORIDE 97 was removed in decompression; In reaction kettle, add armeen, use the microwave radiation 3～10min of output rating as 500W after, excessive primary amine is removed in decompression, is chilled to room temperature, adds the aqueous solution neutralization of rare NaOH, suction filtration, drying, discharging, packing;
When (3) using, after quality such as A component and B component are mixed 30min, must reclaim the PET base adhesive.
4. the application of the described recovery of claim 1 a PET base adhesive is used for gluing color steel and polystyrene foam plate composite sheet.
5. the application of recovery PET base adhesive as claimed in claim 4 during use, behind quality mixed 30min such as A component and B component, can evenly be coated with cover gluing material surface through robotization continuous forming machine or batch process route, and resin added is 0.5kg/m
2
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| CN 201110462073 CN102585752B (en) | 2011-12-31 | 2011-12-31 | Recovery polyethylene terephthalate (PET)-base adhesive, and preparation method and application thereof |
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|---|---|---|---|
| CN 201110462073 CN102585752B (en) | 2011-12-31 | 2011-12-31 | Recovery polyethylene terephthalate (PET)-base adhesive, and preparation method and application thereof |
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| CN102585752A true CN102585752A (en) | 2012-07-18 |
| CN102585752B CN102585752B (en) | 2013-07-17 |
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| CN 201110462073 Expired - Fee Related CN102585752B (en) | 2011-12-31 | 2011-12-31 | Recovery polyethylene terephthalate (PET)-base adhesive, and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019188335A1 (en) * | 2018-03-28 | 2019-10-03 | Dic株式会社 | Reactive adhesive agent, laminate film, and packaging body |
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| CN102585752B (en) | 2013-07-17 |
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