CN104804698A - Bi-component composite adhesive for solar power back panel, and preparation method thereof - Google Patents
Bi-component composite adhesive for solar power back panel, and preparation method thereof Download PDFInfo
- Publication number
- CN104804698A CN104804698A CN201510204151.3A CN201510204151A CN104804698A CN 104804698 A CN104804698 A CN 104804698A CN 201510204151 A CN201510204151 A CN 201510204151A CN 104804698 A CN104804698 A CN 104804698A
- Authority
- CN
- China
- Prior art keywords
- component
- composite adhesive
- esterification
- adhesive
- backboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a bi-component composite adhesive for a solar power back panel, and a preparation method thereof. The adhesive consists of a component A and a component B, wherein the component A mainly comprises dipropylene glycol, hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-pentanediol, terephthalic acid, phthalic anhydride, 1,12-dodecanoic acid, a hydrolysis-resistant stabilizing agent, ethyl acetate and a small amount of organotin catalyst, and the component B is an aliphatic polyisocyanate curing agent; the weight ratio of the component A to the component B is (10-16): 1. According to the bi-component composite adhesive, through a simple esterification synthesis reaction, high-hydrophobicity dibasic alcohol and long-carbon-chain dibasic acid are introduced to prepare polyester polyol which is good in temperature resistance and hydrolysis resistance; through the addition of the catalyst and the hydrolysis-resistant stabilizing agent, the curing reaction speed of the adhesive is further accelerated, and the hydrolysis resistance of the cured adhesive is further improved. The composite adhesive prepared by the invention is applied to the solar power assembly back panel to endow the solar power assembly back panel with better UV resistance, hydrolysis resistance and aging resistance.
Description
Technical field
The invention belongs to field of adhesive technology, specifically, the present invention relates to a kind of bi-component polyurethane adhesive, more particularly, the present invention relates to a kind of two-pack compound polyurethane adhesive and preparation method thereof that can be used for solar components backboard and manufacture.
Background technology
Along with the demand of people to clean energy is increasing, recent years, solar power plant started to emerge in multitude, and solar components is the basic power generating device of solar power station.Solar components forms primarily of toughened glass, EVA adhesive film, silicon cell and composite back plate.Backboard is positioned at the back side of solar module, shields to cell piece, has reliable insulativity, stopping property, water preventing ability and ageing resistance.Solar components backboard is generally three-decker, as PVDF/PET/PE, wherein PVDF be fluorine-contained film as outer protective layer, have excellent environment resistant erosional competency, middle PE T film has good insulating property, and PE film has good adhesive property.By using between above-mentioned three-layer thin-film, a kind of two-pack composite adhesive is bonding to be formed solar components composite back plate.But because the surface tension of the fluorine-contained films such as PVDF is very low, make PVDF thin film more difficult with the compound sticking of PET film, and solar components composite back plate requires " two 85 " experiment of bearing 2000 ~ 3000 hours after compound, namely under 85 DEG C and 85% humidity, carry out the accelerated aging tests of high hot high humidity, or carry out PCT(121 DEG C of boiling 50 hours) rapid ageing test, so all higher to the requirement of the heatproof of tackiness agent, anti-hydrolytic performance.
Polyurethane adhesive is generally divided into one-component polyurethane adhesive and dual-component polyurethane adhesive, and bi-component polyurethane adhesive is a kind of widely used no-solvent type polyurethane binder, is made up of by a certain percentage host and solidifying agent.The main component of bi-component polyurethane adhesive generally includes one or more in the polyether polyol prepolymer of polyester polyol, polyether glycol and isocyanic ester or polyester polyol modification, wherein, polyester polyol is owing to easily forming hydrogen bond, Intermolecular Forces is comparatively large, and therefore polyester type bi-component polyurethane adhesive mechanical property, thermotolerance are all better than other tackiness agent.But polyester type dual-component polyurethane adhesive viscosity is too high, with other auxiliary agent poor compatibility, cause the auxiliary agent added can not improve the performance of sizing agent well.Authorization Notice No. be CN 103044665B patent discloses a kind of Hydrolysis-resistantpolyester polyester polyol and preparation method thereof, adopt aliphatic dicarboxylic acid or carboxylic acid anhydride, aromatic acid or ester, polyvalent alcohol or auxiliary agent are raw material, a kind of polyester polyol being applicable to soft packaging sizing agent that utilized esterification to prepare, but because the method adopts merely the raw material of short chain acids or alcohol structure, although improve traditional tackiness agent viscosity too high shortcoming to a certain extent, but also make the tackiness agent mechanical property that obtains and thermostability reduce simultaneously, and anti-hydrolytic performance is limited, therefore the polyester polyol utilizing the method to prepare is not suitable for the bonding of sun power backboard.
In sum, by host agent prescription design and the use of hydrolysis additive, significantly improve the resistance to gentle hydrolytic resistance of Polyurethane composite adhesive, meet the technical requirements of China's solar module to composite back plate, there is important using value.
Summary of the invention
For overcoming the deficiency that prior art exists, the object of the present invention is to provide a kind of solar components backboard manufacture two-pack composite adhesive and preparation method thereof, this composite adhesive has excellent Nai Gaore, hydrolysis and resistance to UV aging energy, to the multiple thin-film material that solar components composite back plate manufacturing adopts, there is excellent bonding strength, and the ageing-resistant performance requirement of China to solar components composite back plate product excellence can be met.
The object of the invention is to be achieved through the following technical solutions:
A kind of sun power backboard two-pack composite adhesive, be made up of component A and B component, wherein, component A is made up of each feed composition of following weight part: dipropylene glycol 8 ~ 15 parts, Hydroxypivalyl hydroxypivalate 15 ~ 25 parts,
2,4-diethyl-1,5-PD 10 ~ 23 parts, terephthalic acid 10 ~ 20 parts, phthalic anhydride 10 ~ 20 parts, 1,12-bay diacid 15 ~ 25 parts, organotin catalysts 0.001 ~ 0.006 part, stabilisers against hydrolysis 0.5 ~ 4 part, ethyl acetate 50 ~ 60 parts; B component is aliphatic polyisocyante solidifying agent; The weight ratio of component A and B component is 10 ~ 16:1.
Wherein, weight part described above, can be weight unit well known to those skilled in the art, such as gram, kilogram, kilogram, ton etc.
Further preferably, aliphatic polyisocyante solidifying agent described above is any one or several in HDI tripolymer, IPDI tripolymer, hydrogenation MDI trimerization type solidifying agent.
Further preferably, organotin catalysts described above is dibutyl tin laurate.
Further preferably, stabilisers against hydrolysis described above is polycarbodiimide.
Another object of the present invention is to provide the preparation method of sun power backboard two-pack composite adhesive described above.
Concrete technical scheme is as follows:
A preparation method for sun power backboard two-pack composite adhesive, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by described dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-pentanediol is put in reaction kettle of the esterification, and inflated with nitrogen is protected, and drops into terephthalic acid, phthalic anhydride, 1 again after heating for dissolving mixing, 12-bay diacid, progressively make reaction kettle of the esterification be warming up to 220 ~ 230 DEG C, start esterification during reaction kettle of the esterification distillation water outlet, if esterification aquifer yield reaches theoretical aquifer yield, esterification completes; Hydroxyl value and the acid number of product are surveyed in sampling, if record the hydroxyl value of product within the scope of 10 ~ 20mgKOH/g, acid number≤25mgKOH/g simultaneously, start to vacuumize and carry out polycondensation, vacuum tightness is-0.06 ~-0. lMpa, pumpdown time is 4 ~ 8 hours, surveying hydroxyl value and the acid number of product at interval of sampling in 2 hours, generating polyester polyol after polycondensation, when recording the hydroxyl value of polyester polyol in 10 ~ 20mgKOH/g scope, simultaneously after acid number≤2mgKOH/g, cool to 110 DEG C; In polyester polyol, add ethyl acetate again, make the polyester polyol solution that solid content is 55 ~ 65%, and then in polyester polyol solution, add organotin catalysts and the stabilisers against hydrolysis of described weight part, stir, obtained host component A;
(2) composite adhesive preparation:
Above-mentioned obtained host component A is mixed with the weight proportion of B component by 10 ~ 16:1, namely obtains described solar components backboard composite adhesive.
Further, described in above-mentioned steps (1), the mixing temperature of heating for dissolving is 120 DEG C.
The present invention also provides a kind of solar components composite back plate, described backboard mainly comprises the adhesive layer applied between polyvinylidene difluoride (PVDF) (PVDF) thin film layer, PET film layer, PE thin film layer and each thin film layer, wherein, described tackiness agent is the above-mentioned solar components backboard composite adhesive prepared of the present invention.
Compared with prior art, the inventive method has the following advantages: by simple lactate synthesis method, introduce the strong dibasic alcohol of hydrophobicity and long carbochain biatomic acid, temperature tolerance, polyester polyol that hydrolytic resistance is good are made, and by adding catalyzer and stabilisers against hydrolysis as host in polyester polyol, further increase the curing reaction speed of host and the resistance to hydrolysis of cured glue stick.After obtained host being mixed with solidifying agent, obtained composite adhesive can manufacture solar components backboard by compound fluorine-contained film material, and the sun power backboard after compound can be made to have good ultraviolet resistance, hydrolysis and ageing-resistant performance.
Embodiment
For a better understanding of the present invention, below in conjunction with specific embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1
A kind of sun power backboard two-pack composite adhesive described in the present embodiment, be made up of component A and B component, wherein, component A is made up of each feed composition of following weight part: dipropylene glycol 8 kilograms, Hydroxypivalyl hydroxypivalate 19.5 kilograms, 2,4-diethyl-1,5-pentanediol 23 kilograms, terephthalic acid 12 kilograms, phthalic anhydride 19 kilograms, 1,12-bay diacid 18.5 kilograms, 54.6 kilogram ethyl acetate, dibutyl tin laurate 1.3 grams, 1. 6 kilograms of stabilisers against hydrolysis polycarbodiimide STABAXOL P200; B component is HDI tripolymer; The weight ratio of component A and B component is 15:1.
The preparation method of above-mentioned sun power backboard two-pack composite adhesive, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-PD is put in reaction kettle of the esterification, and inflated with nitrogen is protected, be heated to 120 DEG C and dissolve mixing, drop into terephthalic acid, phthalic anhydride, 1,12-bay diacid again, progressively make reaction kettle of the esterification be warming up to 220 DEG C, reaction kettle of the esterification distillation water outlet time start esterification, esterification aquifer yield reach theoretical aquifer yield then esterification complete; It is 13.8mgKOH/g that the hydroxyl value of product is surveyed in sampling, and acid number is 19mgKOH/g, keeps reaction kettle of the esterification temperature to be 220 ~ 230 DEG C and vacuumizes simultaneously and carry out polycondensation, keep 1 hour under the vacuum tightness of-0.06Mpa; Be evacuated to-0.08Mpa again, keep 1 hour, continue to be evacuated to-0.095 ~-0.1Mpa, keep 4 hours; The hydroxyl value of sampling survey polyester polyol is 13.5mgKOH/g and acid number is 1.6mgKOH/g, esterifying kettle is cooled to 110 DEG C, ethyl acetate is added again in polyester polyol, finally in polyester polyol solution, add dibutyl tin laurate and polycarbodiimide STABAXOL P200 again, stir i.e. obtained host component A;
(2) preparation of composite adhesive:
The ratio being 15:1 by weight ratio by above-mentioned obtained host component A and solidifying agent B component (HDI tripolymer) mixes, and namely obtains described solar components backboard composite adhesive.
The present embodiment also provides a kind of solar components composite back plate, described backboard mainly comprises the adhesive layer applied between polyvinylidene difluoride (PVDF) (PVDF) thin film layer, PET film layer, PE thin film layer and each thin film layer, wherein, described tackiness agent is the above-mentioned solar components backboard composite adhesive prepared of the present embodiment.
Embodiment 2
A kind of sun power backboard two-pack composite adhesive described in the present embodiment, be made up of component A and B component, wherein, component A is made up of each feed composition of following weight part: dipropylene glycol 13 kilograms, Hydroxypivalyl hydroxypivalate 15 kilograms, 2,4-diethyl-1,5-pentanediol 22.5 kilograms, terephthalic acid 10 kilograms, phthalic anhydride 20 kilograms, 1,12-bay diacid 19.5 kilograms, 54. 6kg ethyl acetate, dibutyl tin laurate 1.6 grams, 2 kilograms of stabilisers against hydrolysis polycarbodiimide STABAXOL P200; B component is HDI tripolymer; The weight ratio of component A and B component is 15:1.
The preparation method of above-mentioned sun power backboard two-pack composite adhesive, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-PD is put in reaction kettle of the esterification, and inflated with nitrogen is protected, be heated to 120 DEG C and dissolve mixing, drop into terephthalic acid, phthalic anhydride, 1,12-bay diacid again, progressively make reaction kettle of the esterification be warming up to 220 DEG C, reaction kettle of the esterification distillation water outlet time start esterification, esterification aquifer yield reach theoretical aquifer yield then esterification complete; It is 17.0mgKOH/g that the hydroxyl value of product is surveyed in sampling, and acid number is 17.5mgKOH/g, keeps reaction kettle of the esterification temperature to be 220 ~ 230 DEG C and vacuumizes simultaneously and carry out polycondensation, keep 1 hour under the vacuum tightness of-0.06Mpa; Be evacuated to-0.08Mpa again, keep 1 hour, continue to be evacuated to-0.095 ~-0.1Mpa, keep 4 hours; The hydroxyl value of sampling survey polyester polyol is 17.4mgKOH/g and acid number is 1.8mgKOH/g, esterifying kettle is cooled to 110 DEG C, ethyl acetate is added again in polyester polyol, finally in polyester polyol solution, add dibutyl tin laurate and polycarbodiimide STABAXOL P200 again, stir i.e. obtained host component A;
(2) composite adhesive is prepared:
The ratio being 15:1 by weight ratio by above-mentioned obtained host component A and solidifying agent B component and solidifying agent (HDI tripolymer) mixes, and namely obtains described solar components backboard composite adhesive.
Embodiment 3
A kind of sun power backboard two-pack composite adhesive described in the present embodiment, be made up of component A and B component, wherein, component A is made up of each feed composition of following weight part: dipropylene glycol 10 kilograms, Hydroxypivalyl hydroxypivalate 25 kilograms, 2,4-diethyl-1,5-pentanediol 15.5 kilograms, terephthalic acid 10 kilograms, phthalic anhydride 17 kilograms, 1,12-bay diacid 22.5 kilograms, 54.6 kilogram ethyl acetate, dibutyl tin laurate 3.2 grams, 2.5 kilograms of stabilisers against hydrolysis polycarbodiimide STABAXOL P200; B component is HDI tripolymer; The weight ratio of component A and B component is 15:1.
The preparation method of above-mentioned sun power backboard two-pack composite adhesive, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-PD is put in reaction kettle of the esterification, and inflated with nitrogen is protected, be heated to 120 DEG C and dissolve mixing, drop into 11 kilograms of terephthalic acids, phthalic anhydride, 1,12-bay diacid again, progressively make reaction kettle of the esterification be warming up to 220 DEG C, reaction kettle of the esterification distillation water outlet time start esterification, esterification aquifer yield reach theoretical aquifer yield then esterification complete; It is 14.9mgKOH/g that the hydroxyl value of product is surveyed in sampling, and acid number is 18.0mgKOH/g, keeps reaction kettle of the esterification temperature to be 220 ~ 230 DEG C and vacuumizes simultaneously and carry out polycondensation, keep 1 hour under the vacuum tightness of-0.06Mpa; Be evacuated to-0.08Mpa again, keep 1 hour, continue to be evacuated to-0.095 ~-0.1Mpa, keep 4 hours; The hydroxyl value of sampling survey polyester polyol is 15.8mgKOH/g and acid number is 1.1mgKOH/g, esterifying kettle is cooled to 110 DEG C, described ethyl acetate is added again in polyester polyol, finally in polyester polyol solution, add dibutyl tin laurate and polycarbodiimide STABAXOL P200 again, stir i.e. obtained host component A;
(2) composite adhesive is prepared:
The ratio being 15:1 by weight ratio by obtained host component A described above and solidifying agent B component (HDI tripolymer) mixes, and namely obtains described solar components backboard composite adhesive.
Embodiment 4
A kind of sun power backboard two-pack composite adhesive described in the present embodiment, be made up of component A and B component, wherein, component A is made up of each feed composition of following weight part: dipropylene glycol 8 kilograms, Hydroxypivalyl hydroxypivalate 20 kilograms, 2,4-diethyl-1,5-pentanediol 23 kilograms, terephthalic acid 14 kilograms, phthalic anhydride 10 kilograms, 1,12-bay diacid 25 kilograms, 50 kilograms of ethyl acetate, dibutyl tin laurate 1 gram, 0.5 kilogram of stabilisers against hydrolysis polycarbodiimide STABAXOL P200; B component is HDI tripolymer; The weight ratio of component A and B component is 10:1.
The preparation method of above-mentioned sun power backboard two-pack composite adhesive, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-PD is put in reaction kettle of the esterification, and inflated with nitrogen is protected, be heated to 120 DEG C and dissolve mixing, drop into terephthalic acid, phthalic anhydride, 1,12-bay diacid again, progressively make reaction kettle of the esterification be warming up to 220 DEG C, reaction kettle of the esterification distillation water outlet time start esterification, esterification aquifer yield reach theoretical aquifer yield then esterification complete; It is 15.8mgKOH/g that the hydroxyl value of product is surveyed in sampling, and acid number is 19mgKOH/g, keeps reaction kettle of the esterification temperature to be 220 ~ 230 DEG C and vacuumizes simultaneously and carry out polycondensation, keep 1 hour under the vacuum tightness of-0.06Mpa; Be evacuated to-0.08Mpa again, keep 1 hour, continue to be evacuated to-0.095 ~-0.1Mpa, keep 6 hours; The hydroxyl value of sampling survey polyester polyol is 15.5mgKOH/g and acid number is 1.6mgKOH/g, esterifying kettle is cooled to 110 DEG C, ethyl acetate is added again in polyester polyol, finally in polyester polyol solution, add dibutyl tin laurate and polycarbodiimide STABAXOL P200 again, stir i.e. obtained host component A;
(2) preparation of composite adhesive:
The ratio being 10:1 by weight ratio by above-mentioned obtained host component A and solidifying agent B component (IPDI tripolymer) mixes, and namely obtains described solar components backboard composite adhesive.
Embodiment 5
A kind of sun power backboard two-pack composite adhesive described in the present embodiment, be made up of component A and B component, wherein, component A is made up of each feed composition of following weight part: dipropylene glycol 15 kilograms, Hydroxypivalyl hydroxypivalate 25 kilograms, 2,4-diethyl-1,5-pentanediol 10 kilograms, terephthalic acid 20 kilograms, phthalic anhydride 15 kilograms, 1,12-bay diacid 15 kilograms, 60 kilograms of ethyl acetate, dibutyl tin laurate 6 grams, 4 kilograms of stabilisers against hydrolysis polycarbodiimide STABAXOL P200; B component is HDI tripolymer; The weight ratio of component A and B component is 16:1.
The preparation method of above-mentioned sun power backboard two-pack composite adhesive, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-PD is put in reaction kettle of the esterification, and inflated with nitrogen is protected, be heated to 120 DEG C and dissolve mixing, drop into 11 kilograms of terephthalic acids, phthalic anhydride, 1,12-bay diacid again, progressively make reaction kettle of the esterification be warming up to 220 DEG C, reaction kettle of the esterification distillation water outlet time start esterification, esterification aquifer yield reach theoretical aquifer yield then esterification complete; It is 17.9mgKOH/g that the hydroxyl value of product is surveyed in sampling, and acid number is 18.0mgKOH/g, keeps reaction kettle of the esterification temperature to be 220 ~ 230 DEG C and vacuumizes simultaneously and carry out polycondensation, keep 1 hour under the vacuum tightness of-0.06Mpa; Be evacuated to-0.08Mpa again, keep 1 hour, continue to be evacuated to-0.095 ~-0.1Mpa, keep 2 hours; The hydroxyl value of sampling survey polyester polyol is 17.3mgKOH/g and acid number is 1.1mgKOH/g, esterifying kettle is cooled to 110 DEG C, ethyl acetate is added again in polyester polyol, finally in polyester polyol solution, add dibutyl tin laurate and polycarbodiimide STABAXOL P200 again, stir i.e. obtained host component A;
(2) composite adhesive is prepared:
The ratio being 16:1 by weight ratio by obtained host component A described above and solidifying agent B component (HDI tripolymer) mixes, and namely obtains described solar components backboard composite adhesive.
Embodiment 6
A kind of sun power backboard two-pack composite adhesive described in the present embodiment, be made up of component A and B component, wherein, component A is made up of each feed composition of following weight part: dipropylene glycol 15 kilograms, Hydroxypivalyl hydroxypivalate 22.5 kilograms, 2,4-diethyl-1,5-pentanediol 13 kilograms, terephthalic acid 15 kilograms, phthalic anhydride 19 kilograms, 1,12-bay diacid 15.5 kilograms, 54. 6 kilograms of ethyl acetate, dibutyl tin laurate 4 grams, 2.0 kilograms of stabilisers against hydrolysis polycarbodiimide STABAXOL P200; B component is hydrogenation MDI trimerization type solidifying agent; The weight ratio of component A and B component is 15:1.
The preparation method of above-mentioned sun power backboard two-pack composite adhesive, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-PD is put in reaction kettle of the esterification, and inflated with nitrogen is protected, be heated to 120 DEG C and dissolve mixing, drop into terephthalic acid, phthalic anhydride, 1,12-bay diacid again, progressively make reaction kettle of the esterification be warming up to 220 DEG C, reaction kettle of the esterification distillation water outlet time start esterification, esterification aquifer yield reach theoretical aquifer yield then esterification complete; It is 18.1mgKOH/g that the hydroxyl value of product is surveyed in sampling, and acid number is 18.8mgKOH/g, keeps reaction kettle of the esterification temperature to be 220 ~ 230 DEG C and vacuumizes simultaneously and carry out polycondensation, keep 1 hour under the vacuum tightness of-0.06Mpa; Be evacuated to-0.08Mpa again, keep 1 hour, continue to be evacuated to-0.095 ~-0.1Mpa, keep 4 hours; The hydroxyl value of sampling survey polyester polyol is 18.8mgKOH/g and acid number is 0.9mgKOH/g.Esterifying kettle is cooled to 110 DEG C, then add ethyl acetate in polyester polyol, finally in polyester polyol solution, add dibutyl tin laurate and polycarbodiimide STABAXOL P200 again, stir i.e. obtained host component A;
(2) composite adhesive is prepared:
The ratio being 15:1 by weight ratio by obtained host component A described above and solidifying agent B component (HDI tripolymer) mixes, and namely obtains described solar components backboard composite adhesive.
Comparative example
A kind of sun power backboard two-pack composite adhesive described in this comparative example, be made up of component A and B component, wherein, component A is made up of each feed composition of following weight part: dipropylene glycol 15 kilograms, Hydroxypivalyl hydroxypivalate 22.5 kilograms, 2,4-diethyl-1,5-PD 13 kilograms, terephthalic acid 15 kilograms, phthalic anhydride 19 kilograms, 1,12-bay diacid 15.5 kilograms, 54. 6 kilograms of ethyl acetate, dibutyl tin laurate 4 grams; B component is HDI tripolymer; The weight ratio of component A and B component is 15:1.
The preparation method of above-mentioned sun power backboard two-pack composite adhesive, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-PD is put in reaction kettle of the esterification, and inflated with nitrogen is protected, be heated to 120 DEG C and dissolve mixing, drop into terephthalic acid, phthalic anhydride, 1,12-bay diacid again, progressively make reaction kettle of the esterification be warming up to 220 DEG C, reaction kettle of the esterification distillation water outlet time start esterification, esterification aquifer yield reach theoretical aquifer yield then esterification complete; It is 18.5mgKOH/g that the hydroxyl value of product is surveyed in sampling, and acid number is 18.1mgKOH/g, keeps reaction kettle of the esterification temperature to be 220 ~ 230 DEG C and vacuumizes simultaneously and carry out polycondensation, keep 1 hour under the vacuum tightness of-0.06Mpa; Be evacuated to-0.08Mpa again, keep 1 hour, continue to be evacuated to-0.095 ~-0.1Mpa, keep 4 hours; The hydroxyl value of sampling survey polyester polyol is 18.8mgKOH/g and acid number is 0.7mgKOH/g, esterifying kettle is cooled to 110 DEG C, in polyester polyol, add ethyl acetate again, in polyester polyol solution, finally add dibutyl tin laurate again to stir i.e. obtained host component A;
(2) composite adhesive is prepared:
The ratio being 15:1 by weight ratio by obtained host component A described above and solidifying agent B component (HDI tripolymer) mixes, and namely obtains described solar components backboard composite adhesive.
Embodiment 7
Bonding between each layer film respectively the solar components backboard composite adhesive prepared in above-described embodiment 1-6 and comparative example being applied to solar components backboard, described backboard comprises the adhesive layer applied between polyvinylidene difluoride (PVDF) (PVDF) thin film layer, PET film layer, PE thin film layer and each thin film layer, and the over-all properties of obtained PVDF/PET/PE tri-layers of composite back plate is evaluated, the results are shown in following table 1:
Each performance comparison of each embodiment of table 1 and comparative example
From above-mentioned test result, the solar components backboard composite adhesive that the present invention prepares is by introducing the strong dibasic alcohol 2 of hydrophobicity, 4-diethyl-1,5-pentanediol and long carbochain biatomic acid have made temperature tolerance, polyester polyol that hydrolytic resistance is good, and by adding catalyzer and stabilisers against hydrolysis as host in polyester polyol, further increase the resistance to hydrolysis of cured glue stick.Composite adhesive obtained after this host being mixed with solidifying agent has good cohesive strength and the aging and resistance to weather aging performance of ultraviolet resistance to the solar components backboard containing PVDF.The solar components backboard made by it only needs 50 DEG C of solidifications 6 days, higher stripping strength can be reached, and it carries out PCT(121 DEG C of boiling 50 hours after hardening again) weathering test after, the decay of its stripping strength is all less than 10%, obviously be better than the comparative example not adding stabilisers against hydrolysis, reach the technical requirements that backboard industry is relevant.
The above, be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, and the change that any those skilled in the art of being familiar with can expect easily or improvement all should be encompassed within protection scope of the present invention.
Claims (6)
1. a sun power backboard two-pack composite adhesive, be made up of component A and B component, it is characterized in that, described component A is made up of each feed composition of following weight part: dipropylene glycol 8 ~ 15 parts, Hydroxypivalyl hydroxypivalate 15 ~ 25 parts, 2,4-diethyl-1,5-pentanediol 10 ~ 23 parts, terephthalic acid 10 ~ 20 parts, phthalic anhydride 10 ~ 20 parts, 1,12-bay diacid 15 ~ 25 parts, organotin catalysts 0.001 ~ 0.006 part, stabilisers against hydrolysis 0.5 ~ 4 part, ethyl acetate 50 ~ 60 parts; B component is aliphatic polyisocyante solidifying agent; The weight ratio of component A and B component is 10 ~ 16:1; Described sun power backboard two-pack composite adhesive is adopt to prepare obtained product with the following method, comprises the steps:
(1) preparation of component A:
Each raw material is accurately taken respectively by weight part described above, by described dipropylene glycol, Hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-pentanediol is put in reaction kettle of the esterification, and inflated with nitrogen is protected, and drops into terephthalic acid, phthalic anhydride, 1 again after heating for dissolving mixing, 12-bay diacid, progressively make reaction kettle of the esterification be warming up to 220 ~ 230 DEG C, start esterification during reaction kettle of the esterification distillation water outlet, if esterification aquifer yield reaches theoretical aquifer yield, esterification completes; Hydroxyl value and the acid number of product are surveyed in sampling, if record the hydroxyl value of product within the scope of 10 ~ 20mgKOH/g, acid number≤25mgKOH/g simultaneously, start to vacuumize and carry out polycondensation, vacuum tightness is-0.06 ~-0. lMpa, pumpdown time is 4 ~ 8 hours, surveying hydroxyl value and the acid number of product at interval of sampling in 2 hours, generating polyester polyol after polycondensation, when recording the hydroxyl value of polyester polyol in 10 ~ 20mgKOH/g scope, simultaneously after acid number≤2mgKOH/g, cool to 110 DEG C; In polyester polyol, add ethyl acetate again, make the polyester polyol solution that solid content is 55 ~ 65%, and then in polyester polyol solution, add organotin catalysts and the stabilisers against hydrolysis of described weight part, stir, obtained host component A;
(2) composite adhesive preparation:
Above-mentioned obtained host component A is mixed with the weight proportion of B component by 10 ~ 16:1, namely obtains described solar components backboard composite adhesive.
2. a kind of sun power backboard two-pack composite adhesive as claimed in claim 1, is characterized in that: described aliphatic polyisocyante solidifying agent is any one or several in HDI tripolymer, IPDI tripolymer, hydrogenation MDI trimerization type solidifying agent.
3. a kind of sun power backboard two-pack composite adhesive as claimed in claim 1, is characterized in that: described organotin catalysts is dibutyl tin laurate.
4. a kind of sun power backboard two-pack composite adhesive as claimed in claim 1, is characterized in that: described stabilisers against hydrolysis is polycarbodiimide.
5. a kind of sun power backboard two-pack composite adhesive as claimed in claim 1, is characterized in that: described in step (1), the mixing temperature of heating for dissolving is 120 DEG C.
6. a solar components composite back plate, it is characterized in that: described backboard mainly comprises the adhesive layer applied between polyvinylidene difluoride (PVDF) (PVDF) thin film layer, PET film layer, PE thin film layer and each thin film layer, wherein, described tackiness agent is the sun power backboard two-pack composite adhesive described in any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204151.3A CN104804698B (en) | 2015-04-27 | 2015-04-27 | A kind of solar energy backboard bi-component composite adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204151.3A CN104804698B (en) | 2015-04-27 | 2015-04-27 | A kind of solar energy backboard bi-component composite adhesive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104804698A true CN104804698A (en) | 2015-07-29 |
| CN104804698B CN104804698B (en) | 2017-04-05 |
Family
ID=53689908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510204151.3A Expired - Fee Related CN104804698B (en) | 2015-04-27 | 2015-04-27 | A kind of solar energy backboard bi-component composite adhesive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104804698B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974338A (en) * | 2015-07-31 | 2015-10-14 | 旭川化学（苏州）有限公司 | Photocuring polyester polyol and application thereof in adhesives |
| CN105524588A (en) * | 2016-01-21 | 2016-04-27 | 巨化集团技术中心 | Solvent-free composite binding agent for solar back board and preparation method thereof |
| CN106244081A (en) * | 2016-07-28 | 2016-12-21 | 上海乘鹰新材料有限公司 | Solar cell backboard Adhesive composition and preparation method thereof |
| CN107118731A (en) * | 2017-06-26 | 2017-09-01 | 张兆民 | Solar monocrystalline silicon slice adhesive |
| CN107840947A (en) * | 2017-11-16 | 2018-03-27 | 厦门市五翔盛环保科技有限公司 | A kind of method that unsaturated polyester (UP) is synthesized using PET composite membranes waste material |
| CN108239512A (en) * | 2017-12-11 | 2018-07-03 | 昆山市冠宝化学有限公司 | Solar energy backboard sticks agent and preparation method thereof with two-component polyurethane adhesive |
| CN109293906A (en) * | 2018-09-26 | 2019-02-01 | 上海维凯光电新材料有限公司 | High-weatherability polyester and its synthetic method for solar energy backboard multilayer film bonding |
| CN110343497A (en) * | 2019-07-24 | 2019-10-18 | 高鼎精细化工(昆山)有限公司 | A kind of photovoltaic back solvent-free polyurethane adhesive, preparation method and photovoltaic back |
| CN110481139A (en) * | 2018-05-14 | 2019-11-22 | 无锡莱恩科技有限公司 | A kind of manufacturing method and system of the composite material based on two component adhesive |
| CN111320947A (en) * | 2020-03-16 | 2020-06-23 | 广东新辉化学有限公司 | Solar backboard laminating adhesive and film preparation method thereof |
| WO2021122091A1 (en) * | 2019-12-16 | 2021-06-24 | Henkel Ag & Co. Kgaa | Dimensionally stable, wipe-on, semi-crystalline polyester-based adhesive compound |
| CN114163965A (en) * | 2021-12-24 | 2022-03-11 | 沈阳化工研究院有限公司 | Bi-component solvent-free polyurethane adhesive for solar backboard |
| CN115138379A (en) * | 2022-07-07 | 2022-10-04 | 浙江师范大学 | Forming method of metal fluoride powder catalyst |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164473A (en) * | 1990-01-16 | 1992-11-17 | Miles Inc. | Two-component polyurethane adhesive |
| CN102977835A (en) * | 2012-11-22 | 2013-03-20 | 云南云天化股份有限公司 | Adhesive for solar back panel and preparation method thereof |
-
2015
- 2015-04-27 CN CN201510204151.3A patent/CN104804698B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164473A (en) * | 1990-01-16 | 1992-11-17 | Miles Inc. | Two-component polyurethane adhesive |
| CN102977835A (en) * | 2012-11-22 | 2013-03-20 | 云南云天化股份有限公司 | Adhesive for solar back panel and preparation method thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974338A (en) * | 2015-07-31 | 2015-10-14 | 旭川化学（苏州）有限公司 | Photocuring polyester polyol and application thereof in adhesives |
| CN105524588A (en) * | 2016-01-21 | 2016-04-27 | 巨化集团技术中心 | Solvent-free composite binding agent for solar back board and preparation method thereof |
| CN106244081A (en) * | 2016-07-28 | 2016-12-21 | 上海乘鹰新材料有限公司 | Solar cell backboard Adhesive composition and preparation method thereof |
| CN107118731A (en) * | 2017-06-26 | 2017-09-01 | 张兆民 | Solar monocrystalline silicon slice adhesive |
| CN107840947A (en) * | 2017-11-16 | 2018-03-27 | 厦门市五翔盛环保科技有限公司 | A kind of method that unsaturated polyester (UP) is synthesized using PET composite membranes waste material |
| CN108239512A (en) * | 2017-12-11 | 2018-07-03 | 昆山市冠宝化学有限公司 | Solar energy backboard sticks agent and preparation method thereof with two-component polyurethane adhesive |
| CN110481139A (en) * | 2018-05-14 | 2019-11-22 | 无锡莱恩科技有限公司 | A kind of manufacturing method and system of the composite material based on two component adhesive |
| CN109293906A (en) * | 2018-09-26 | 2019-02-01 | 上海维凯光电新材料有限公司 | High-weatherability polyester and its synthetic method for solar energy backboard multilayer film bonding |
| CN110343497A (en) * | 2019-07-24 | 2019-10-18 | 高鼎精细化工(昆山)有限公司 | A kind of photovoltaic back solvent-free polyurethane adhesive, preparation method and photovoltaic back |
| WO2021122091A1 (en) * | 2019-12-16 | 2021-06-24 | Henkel Ag & Co. Kgaa | Dimensionally stable, wipe-on, semi-crystalline polyester-based adhesive compound |
| CN114829439A (en) * | 2019-12-16 | 2022-07-29 | 汉高股份有限及两合公司 | Dimensionally stable, spreadable adhesive mass based on semicrystalline polyesters |
| CN111320947A (en) * | 2020-03-16 | 2020-06-23 | 广东新辉化学有限公司 | Solar backboard laminating adhesive and film preparation method thereof |
| CN114163965A (en) * | 2021-12-24 | 2022-03-11 | 沈阳化工研究院有限公司 | Bi-component solvent-free polyurethane adhesive for solar backboard |
| CN115138379A (en) * | 2022-07-07 | 2022-10-04 | 浙江师范大学 | Forming method of metal fluoride powder catalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104804698B (en) | 2017-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104804698A (en) | Bi-component composite adhesive for solar power back panel, and preparation method thereof | |
| CN102977835B (en) | Adhesive for solar back panel and preparation method thereof | |
| CN103627362B (en) | A kind of reaction type polyurethane hot-melt adhesive and preparation method thereof | |
| CN104817994A (en) | Fast-cured composite adhesive and preparation method thereof | |
| CN107384277B (en) | Bi-component adhesive for bonding multilayer films of solar back panels | |
| TWI421320B (en) | Adhesive composition and laminate | |
| CN102746486B (en) | Single-component bonding sealing type silicone adhesive for solar battery assembly | |
| TWI410470B (en) | Substrate composition, method for producing the same, and laminate using the composition of the adhesive | |
| CN105131896A (en) | Method for preparing polyurethane hot melt adhesive capable of achieving quick positioning | |
| CN102660216B (en) | Method for preparing adhesive for compounding aluminizing film | |
| CN106661417A (en) | Adhesive for solar-cell backsheet, polyol composition for solar-cell backsheet adhesive, solar-cell backsheet, and solar cell module | |
| CN104231201A (en) | Novel polyester polyurethane polyol, double-component polyol agent for laminating adhesive, resin composition and curable resin composition | |
| CN102153721B (en) | Modified polyurethane elastic curing agent and preparation method thereof | |
| CN104017531A (en) | Hydrolysis-resistant photovoltaic back sheet adhesive and preparation method thereof | |
| CN110257000A (en) | A kind of back panel of solar photovoltaic module adhesive and preparation method thereof | |
| CN115785887B (en) | High-temperature-resistant heat-conducting polyurethane structural adhesive and preparation method thereof | |
| JP2016079243A (en) | Copolyester resin for adhesive | |
| CN102250577B (en) | Preparation method of composite adhesive used for solar energy backboard | |
| CN106367014A (en) | High-stretching-ratio-resisting adhesive for cable shielding film | |
| CN104861916A (en) | Rapid-solidifying composite cementing compound of solar component back plate and preparation method thereof | |
| CN103172822B (en) | Quickly-demoulded weatherproof composition for polyurethane-reaction injection molding and preparation method thereof | |
| CN112708116A (en) | High-molecular-weight and high-flexibility polyester polyol for cable shielding film and preparation method and application thereof | |
| CN110791247A (en) | Solar cell backboard adhesive resin and preparation method thereof | |
| CN104974338A (en) | Photocuring polyester polyol and application thereof in adhesives | |
| CN111793460A (en) | Polyurethane adhesive for compounding PET (polyethylene terephthalate) and aluminum foil and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20210427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |