CN115851172A - Precipitation-proof packaging material and preparation method and application thereof - Google Patents
Precipitation-proof packaging material and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a precipitation-proof packaging material and a preparation method and application thereof. The anti-precipitation packaging material comprises the following components in percentage by mass: 90-99% of matrix material, 0.1-1% of cross-linking agent, 0.2-1.5% of auxiliary cross-linking agent, 0.1-1.5% of coupling agent, 0.1-1% of antioxidant and 0.1-0.5% of light stabilizer; the auxiliary crosslinking agent comprises any one or a mixture of at least two of silane containing vinyl, silane oligomer containing vinyl or cyclosiloxane containing vinyl. The anti-precipitation packaging material is not easy to precipitate and crystallize at low temperature, and the problem of slippage between an adhesive film and glass and between the adhesive film and a battery piece is reduced.
Description
Technical Field
The invention relates to the technical field of packaging materials, in particular to a precipitation-proof packaging material and a preparation method and application thereof.
Background
The photovoltaic packaging adhesive film is an important material in the solar photovoltaic technology industry, plays an important role in bonding a battery piece with photovoltaic glass and a back plate, and simultaneously has multiple functions of mechanical buffering and protection of a photovoltaic module, PID resistance of the module and ultraviolet resistance protection of the back plate. The photovoltaic adhesive film, as a polymer material, is inevitably eroded by the natural environment to cause aging, so the photovoltaic adhesive film is one of the key materials affecting the service life and the power generation power of the photovoltaic module. The research and improvement of the photovoltaic adhesive film have important significance for the promotion of the photovoltaic industry.
Photovoltaic glued membrane generally comprises auxiliaries such as micelle and anti-oxidant, cross-linking agent, silane coupling agent, and these auxiliaries are liquid mostly, because POE does not have polarity, so to liquid auxiliary's absorption incomplete, along with the extension of standing time, liquid auxiliary is easy to separate out gradually to the glued membrane surface, leads to POE glued membrane performance to descend, and batch stability and size uniformity are not good, cause a series of problems such as pollution during the use.
Auxiliary agent in most POE encapsulation glued membrane that uses in the existing market is appeared easily, leads to appearing gluing the problem that slides between membrane and glass and the battery piece, influences the production efficiency of photovoltaic module factory, and then influences their productivity effect.
The method can reduce the sliding phenomenon of the adhesive film in a component factory, but has certain hidden danger due to the change of the surface texture of the adhesive film caused by the abrasion of the rubber roll along with the time extension in the actual adhesive film manufacturing process.
CN112920722B discloses a water-blocking packaging adhesive film and a preparation method thereof, wherein the water-blocking packaging adhesive film comprises the following components in percentage by mass: 75-95% of base material, 1-20% of modified lamellar filler, 0.1-1% of crosslinking assistant, 0.2-1.5% of auxiliary crosslinking agent, 0.1-1% of coupling agent, 0.1-1% of antioxidant, 0.1-0.5% of light stabilizer and 1-5% of anti-PID master batch. The waterproof packaging adhesive film can effectively avoid or slow down the problem of water vapor transmittance of the assembly, and further avoid or slow down power attenuation of the battery piece. However, the auxiliary in the adhesive film is liable to precipitate at a low temperature.
CN111662655A discloses a POE photovoltaic adhesive film and a preparation method thereof, wherein the POE photovoltaic adhesive film comprises: POE resin, an antioxidant, a cross-linking agent, a coupling agent and a precipitation preventing agent; wherein, the content of the POE resin is 87-98%, the content of the antioxidant is 0.05-5%, the content of the cross-linking agent is 0.25-2%, the content of the coupling agent is 0.1-4%, and the content of the anti-precipitation agent is 0.1-4%; the anti-precipitation agent is made of a porous material and/or a clathrate compound. The invention adopts a porous material and/or a cage-shaped compound to prepare the anti-precipitation agent so as to prevent the precipitation of the liquid auxiliary agent of the POE adhesive film in the processes of production, storage, transportation and the like, but the addition of the anti-precipitation agent can cause the other properties of the adhesive film to be reduced.
Therefore, it is necessary to develop a precipitation-proof packaging material with good comprehensive performance, and a preparation method and application thereof.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a precipitation-proof packaging material, and a preparation method and application thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the anti-precipitation packaging material comprises the following components in percentage by mass:
the auxiliary crosslinking agent comprises any one or a mixture of at least two of silane containing vinyl, silane oligomer containing vinyl or cyclosiloxane containing vinyl.
According to the anti-precipitation packaging material, the crosslinking auxiliary agent is added with the silane oligomer containing vinyl and is matched with other components, so that the prepared anti-precipitation packaging material is not easy to precipitate and crystallize at a low temperature, and the problem of slippage between an adhesive film and glass and a battery piece is reduced.
The polymerization degree of the silane oligomer containing vinyl is 3-6, for example, the polymerization degree is 3, 4, 5 and 6, and the problem of glue film slippage caused by the precipitation of the auxiliary agent can be effectively prevented only when the polymerization degree is in the range; preferably, the vinyl-containing silane oligomer is linear or cyclic; in the present invention, the vinyl group-containing silane oligomer used may be of the Kaida 3659 series, the Kawaki 3673 series, or the like.
Specifically, the anti-precipitation packaging material comprises the following components in percentage by mass:
the base material is 90 to 99% by mass, for example, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or the like.
The crosslinking agent is 0.1 to 1% by mass, for example, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, etc.
The mass percentage of the auxiliary crosslinking agent is 0.2 to 1.5%, for example, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, etc.
The coupling agent is 0.1 to 1.5% by mass, for example, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, etc.
The antioxidant is 0.1-1% by mass, for example, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, etc.
The light stabilizer is 0.1 to 0.5% by mass, for example, 0.1%, 0.2%, 0.3%, 0.4%, 0.5% or the like.
In the present invention, the auxiliary crosslinking agent further comprises any one of triallyl isocyanurate, triallyl cyanurate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, or a mixture of at least two thereof.
In the invention, the base material is any one or a mixture of at least two of POE, PP, PE and EVA. The preferred POE brand: 8100. 8200, 8450, 8480, 8999, 6102, 9071, DF640, DF710 and DF810, or a mixture of at least two of them.
In the present invention, the crosslinking agent comprises any one or a mixture of at least two of tert-butyl peroxy-2-ethylhexyl carbonate, ethyl 3, 3-di (tert-butylperoxy) butyrate, tert-butyl peroxy-3, 5-trimethylacetate, 1-di (tert-butylperoxy) -3, 5-trimethylcyclohexane, 1-di (tert-butylperoxy) cyclohexane, tert-amyl peroxy-2-ethylhexyl carbonate, tert-butylperoxy-hexanoate, cumyl peroxyoctanoate.
In the invention, the coupling agent comprises any one or a mixture of at least two of gamma-aminopropyltriethoxysilane, gamma- (2, 3-epoxypropoxy) propoxyltrimethoxysilane, gamma-methacryloxypropoxysilane, gamma-mercaptopropyltrimethoxysilane and gamma-glycidoxypropyltrimethoxysilane.
In the invention, the antioxidant comprises one or a mixture of at least two of antioxidant 1010, butyl hydroxy anisol, dibutyl hydroxy toluene, antioxidant 168, antioxidant 1076, antioxidant 245, antioxidant 618 and antioxidant B215, preferably antioxidant 1010.
In the present invention, the light stabilizer comprises
7001EF, light stabilizer 622, light stabilizer 944, light stabilizer 123, light stabilizer 3853, preferably based on ^ or mixtures of at least two of>
7001EF。
The anti-precipitation packaging material can be designed into a single-layer structure or a three-layer structure according to actual needs.
The second purpose of the present invention is to provide a method for preparing the anti-bleeding packaging material, which comprises the following steps:
uniformly mixing matrix resin, a cross-linking agent, an auxiliary cross-linking agent, a coupling agent, an antioxidant and a light stabilizer by a mixer according to a ratio, then putting the mixture into a casting machine, and then performing plasticizing extrusion, stretching, traction and rolling to prepare the anti-precipitation packaging adhesive film.
In the present invention, the compounding temperature of each auxiliary agent and the matrix resin is 35 to 50 ℃, for example, the compounding temperature is 35 ℃, 36 ℃, 37 ℃, 38 ℃, 39 ℃, 40 ℃, 41 ℃, 42 ℃, 43 ℃, 44 ℃, 45 ℃, 46 ℃, 47 ℃, 48 ℃, 49 ℃, 50 ℃ and the like; the mixing time is 6-10h, such as 6h, 7h, 8h, 9h, 10h and the like.
Preferably, the plasticizing temperature is 80-110 ℃, such as 80 ℃, 85 ℃, 90 ℃, 95 ℃,100 ℃, 105 ℃, 110 ℃ and the like.
The invention also aims to provide application of the anti-precipitation packaging material, and the anti-precipitation packaging material is used for preparing a photovoltaic module.
Compared with the prior art, the invention has the beneficial effects that:
the anti-precipitation packaging material is not easy to precipitate and crystallize at low temperature, has high comprehensive performance, reduces the problem of slippage between a glue film and glass and between a glue film and a battery piece, reduces components which have problems and need to be reworked due to slippage caused by precipitation of a glue film additive in the production process of the components, and simultaneously reduces working procedures and increases the production efficiency of the components. Specifically, the time of the anti-precipitation packaging material sliding for 1mm is 39-56s, and the absorption rate of the auxiliary agent is 50-80%.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Unless otherwise specified, various starting materials of the present invention are commercially available or prepared according to conventional methods in the art.
Example 1
The precipitation-proof packaging adhesive film comprises the following components in percentage by mass: 97.5% of POE (trademark 8999), 0.8% of tert-amyl peroxy-2-ethylhexyl carbonate, 0.9% of vinyl-containing silane oligomer (Kaishda 3659), 0.1% of antioxidant 1010,
7001EF is 0.1% and gamma-methacryloxypropyltrimethoxysilane is 0.5%.
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
the components are mixed evenly by a mixer according to the mixture ratio and then are put into a casting machine, and the mixture is plasticized, extruded, stretched, pulled and rolled at 100 ℃ to prepare the product with the gram weight of 470g/m 2 The POE adhesive film. A10cm by 10cm adhesive film was taken, and the time for 1mm slippage on a glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 2
The precipitation-proof packaging adhesive film comprises the following components in percentage by mass: 97.5% of POE (brand 8200), 0.8% of tert-butyl peroxy-2-ethylhexyl carbonate, 0.9% of triallyl isocyanurate and vinyl-containing silane oligomer (Kaishda 3659) (mixing ratio 1,
7001EF is 0.1% and gamma-boryl trimethoxy silane is 0.6%.
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
the components are mixed evenly by a mixer according to the mixture ratio and then are put into a casting machine, and the mixture is plasticized, extruded, stretched, pulled and rolled at 100 ℃ to prepare the product with the gram weight of 470g/m 2 The POE adhesive film. A10cm by 10cm adhesive film was taken, and the time for 1mm slippage on a glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 3
The anti-precipitation packaging adhesive film of the embodiment adopts a three-layer structure and is characterized in thatThe coating comprises the following outer layer components in percentage by mass: 97.5% of POE (No. 9071), 0.8% of tert-amyl peroxy-2-ethylhexyl carbonate, 0.9% of vinyl-containing silane oligomer (Kaishda 3659), 0.1% of antioxidant 1010,
7001EF is 0.1%, gamma-methacryloxypropyltrimethoxysilane is 0.5%, and the interlayer comprises the following components in percentage by mass: 97.5% of POE, 0.8% of tert-butyl peroxy-2-ethylhexyl carbonate, 0.9% of triallyl isocyanurate, 0.1% of antioxidant 1010 and/or on/off>
7001EF is 0.1% and gamma-boryl trimethoxy silane is 0.4%.
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
mixing the above components at a certain proportion by a mixer, feeding into a casting machine, wherein the outer layer particles are fed into screw machines at two sides, the middle layer particles are fed into a middle screw machine, plasticizing at 100 deg.C, extruding, stretching, drawing, and rolling to obtain the final product with gram weight of 470g/m 2 The POE adhesive film. A10cm by 10cm adhesive film was taken, and the time for 1mm slippage on a glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 4
The precipitation-proof packaging adhesive film of the embodiment adopts a three-layer structure and comprises the following outer-layer components in percentage by mass: 97.5% of POE (brand DF 710), 0.8% of tert-amyl peroxy-2-ethylhexyl carbonate, 0.8% of a mixture of vinyl-containing silane oligomer (Kaisha 3659) and triallyl isocyanurate (mixing ratio 3), 0.1% of an antioxidant 1010,
7001EF is 0.1 percent, gamma-methacryloxypropyltrimethoxysilane is 0.5 percent, and the intermediate layer comprises the following components in percentage by mass: 97.5% of POE, 0.6% of t-butyl peroxy-2-ethylhexyl carbonate, triallyl isopropyl carbonateCyanurate 0.6%, antioxidant 1010 0.1%, (meth)>
7001EF is 0.1% and gamma-boryl trimethoxy silane is 0.3%.
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
the components are uniformly mixed by a mixer according to the mixture ratio, then are put into a calendar, and are subjected to plasticizing extrusion, stretching, traction and rolling at 100 ℃ to prepare the material with the gram weight of 470g/m 2 The POE adhesive film. A10cm-10 cm adhesive film was taken, and the time for 1mm of slip on a piece of glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 5
The anti-precipitation packaging adhesive film comprises the following components in percentage by mass: 97.5% of POE (trademark 8480), 1-di (tert-butylperoxy) cyclohexane, 0.5% of vinyl-containing silane oligomer (Kaisha 3673), 0.1% of antioxidant 1010,
7001EF is 0.1% and gamma-methacryloxypropyltrimethoxysilane is 0.5%.
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
the components are mixed evenly by a mixer according to the mixture ratio and then are put into a casting machine, and the mixture is plasticized, extruded, stretched, pulled and rolled at 100 ℃ to prepare the product with the gram weight of 470g/m 2 The POE adhesive film. A10cm by 10cm adhesive film was taken, and the time for 1mm slippage on a glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 6
The precipitation-proof packaging adhesive film comprises the following components in percentage by mass: 97.5% of POE (trade name DF 810), 0.6% of tert-butyl peroxy-3, 5-trimethylacetate, 1.3% of vinyl-containing silane oligomer (Kaishda 3659), 0.1% of antioxidant 1010,
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
the components are mixed evenly by a mixer according to the mixture ratio and then are put into a casting machine, and the mixture is plasticized, extruded, stretched, pulled and rolled at 100 ℃ to prepare the product with the gram weight of 470g/m 2 The POE adhesive film. A10cm by 10cm adhesive film was taken, and the time for 1mm slippage on a glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 7
The precipitation-proof packaging adhesive film comprises the following components in percentage by mass: 97.5 percent of POE (the trade name is 8100), 0.8 percent of tert-butyl peroxy-3, 5-trimethylacetate, 1 percent of cyclosiloxane containing vinyl (Kaishda 3041), 0.1 percent of antioxidant 1010,
7001EF is 0.1% and gamma-methacryloxypropyltrimethoxysilane is 0.5%.
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
the components are uniformly mixed by a mixer according to the mixture ratio, then are put into a calendar, and are subjected to plasticizing extrusion, stretching, traction and rolling at 100 ℃ to prepare the material with the gram weight of 470g/m 2 The POE adhesive film. A10cm by 10cm adhesive film was taken, and the time for 1mm slippage on a glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 8
The precipitation-proof packaging adhesive film comprises the following components in percentage by mass: 97.4 percent of POE (the brand number is 8480), 0.9 percent of tert-butyl peroxy-3, 5-trimethylacetate, 1 percent of cyclosiloxane containing vinyl (Kaishda 3051), 0.1 percent of antioxidant 1010,
7001EF 0.1% of gamma-methacryloxypropyltrimethoxysilaneIs 0.5%.
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
the components are mixed evenly by a mixer according to the mixture ratio and then are put into a casting machine, and the mixture is plasticized, extruded, stretched, pulled and rolled at 100 ℃ to prepare the product with the gram weight of 470g/m 2 The POE adhesive film. A10cm-10 cm adhesive film was taken, and the time for 1mm of slip on a piece of glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 9
The precipitation-proof packaging adhesive film comprises the following components in percentage by mass: 97.7 percent of POE (the trade name is 6102), 0.6 percent of tert-butyl peroxy-3, 5-trimethylacetate, 1 percent of vinyl-containing tetravinylsilane, 0.1 percent of antioxidant 1010,
7001EF is 0.1% and gamma-methacryloxypropyltrimethoxysilane is 0.5%.
The anti-precipitation packaging adhesive film of the embodiment is prepared by the following method:
the components are mixed evenly by a mixer according to the mixture ratio and then are put into a casting machine, and the mixture is plasticized, extruded, stretched, pulled and rolled at 100 ℃ to prepare the product with the gram weight of 470g/m 2 The POE adhesive film. A10cm by 10cm adhesive film was taken, and the time for 1mm slippage on a glass fixed at an inclination angle of 27.3 ℃ was recorded.
Example 10
The difference between the embodiment and embodiment 1 is that the base material is a mixture of POE and PP, the specific amounts are 7 by mass, and the specific types are POE (type 8999) and PP (type F401), respectively.
Example 11
The difference between the present example and example 1 is that the auxiliary crosslinking agent is a mixture of vinyl-containing silane oligomer (kokai 3659) and triallyl isocyanurate, and the mass ratio of the auxiliary crosslinking agent is 2.
Comparative example 1
The anti-precipitation packaging adhesive film of the comparative example comprises the following components in percentage by massThe components are as follows: 98 percent of POE, 0.5 percent of peroxy-2-ethylhexyl tert-butyl carbonate, 0.8 percent of triallyl isocyanurate, 0.1 percent of antioxidant 1010,
7001EF is 0.1% and gamma-aminopropyltriethoxysilane is 0.5%.
The anti-precipitation packaging adhesive film of the comparative example is prepared by the following method:
the components are mixed evenly by a mixer according to the mixture ratio and then are put into a casting machine, and the mixture is plasticized, extruded, stretched, pulled and rolled at 100 ℃ to prepare the product with the gram weight of 470g/m 2 The POE adhesive film. A10cm-10 cm adhesive film was taken, and the time for 1mm of slip on a piece of glass fixed at an inclination angle of 27.3 ℃ was recorded.
Comparative example 2
The anti-precipitation packaging adhesive film comprises the following components in percentage by mass: 97.5 percent of POE, 0.8 percent of peroxy-2-ethylhexyl tert-butyl carbonate, 0.9 percent of triallyl isocyanurate, 0.1 percent of antioxidant 1010,
7001EF is 0.1% and gamma-boryl trimethoxy silane is 0.6%.
The anti-precipitation packaging adhesive film of the comparative example is prepared by the following method:
the components are uniformly mixed by a mixer according to the mixture ratio, then are put into a calendar, and are subjected to plasticizing extrusion, stretching, traction and rolling at 100 ℃ to prepare the material with the gram weight of 470g/m 2 The POE adhesive film. A10cm by 10cm adhesive film was taken, and the time for 1mm slippage on a glass fixed at an inclination angle of 27.3 ℃ was recorded.
Comparative example 3
This comparative example is different from example 1 in that the co-crosslinking agent was replaced with trimethylolpropane triacrylate, and the rest was the same as example 1.
Comparative example 4
This comparative example is different from example 1 in that the amount of the co-crosslinking agent used was 0.1%, and the reduced amount of the co-crosslinking agent was added on average to the other components to ensure that the total amount was constant.
Comparative example 5
This comparative example differs from example 1 in that the amount of the co-crosslinking agent is 2% and the increased amount of the co-crosslinking agent is subtracted from the other components on average to ensure that the total amount is constant.
The encapsulating materials obtained in examples 1 to 11 and comparative examples 1 to 5 were subjected to performance tests, and the test results are shown in Table 1.
Wherein, the absorption rate of the auxiliary agent is tested by adopting the following method:
at normal temperature, adding 1g of the auxiliary agent into 100g of the particles, stirring for 4h, wiping the auxiliary agent on the surfaces of the particles, and weighing to calculate the absorption rate of the auxiliary agent in the particles.
TABLE 1
As can be seen from Table 1, the use of the silane oligomer containing vinyl can prolong the sliding time of the adhesive film on glass, and the absorption rate of the auxiliary agent in particles is obviously greater than that of other auxiliary crosslinking agents, i.e., the silane oligomer containing vinyl is not easy to precipitate in the adhesive film, and the auxiliary agent precipitates on the surface of the adhesive film to cause the sliding phenomenon of the adhesive film on glass.
Comparative examples 1 and 2, which do not contain a vinyl-containing silane oligomer, make the aid not easily absorbed by particles, and even if the absorbed aid is easily precipitated in the adhesive film, because the polarity is different between the aid and the polymer, and meanwhile, the aid is a small molecule, and the polymer is a large molecule, and the compatibility between the aid and the polymer is poor, so that the aid is easily precipitated.
Comparative example 3 replacement of vinyl-containing silane oligomer with trimethylolpropane triacrylate made the aid less likely to be absorbed by the particles, and the absorbed aid was likely to precipitate in the adhesive film, causing the problem of slippage of the adhesive film.
Comparative example 4 the amount of the vinyl group-containing silane oligomer is too small to be supplemented with other auxiliary crosslinking agents, and the slippage problem is caused by precipitation on the surface of the adhesive film due to the fact that other auxiliary agents are not easily absorbed by particles, and the slippage problem of the adhesive film becomes more serious when the amount of the vinyl group-containing silane oligomer is smaller.
Comparative example 5 too much vinyl group-containing silane oligomer is used, so that the co-crosslinking agent cannot be completely absorbed because the polymer has a limited absorption degree, and there is a problem that the co-crosslinking agent slips on the surface of the adhesive film.
The present invention is illustrated by the above-mentioned examples, but the present invention is not limited to the above-mentioned detailed process equipment and process flow, i.e. it is not meant to imply that the present invention must rely on the above-mentioned detailed process equipment and process flow to be practiced. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The anti-precipitation packaging material is characterized by comprising the following components in percentage by mass:
the auxiliary crosslinking agent comprises any one or a mixture of at least two of silane containing vinyl, silane oligomer containing vinyl or cyclosiloxane containing vinyl.
2. The bleed-out prevention encapsulant as defined in claim 1, wherein the vinyl-containing silane oligomer has a degree of polymerization of 3 to 6;
preferably, the vinyl-containing silane oligomer is linear or cyclic;
preferably, the auxiliary crosslinking agent further comprises any one of triallyl isocyanurate, triallyl cyanurate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, or a mixture of at least two thereof.
3. The anti-release packaging material according to claim 1 or 2, wherein the matrix material is any one or a mixture of at least two of POE, PP, PE and EVA.
4. A bleed-out prevention encapsulant as claimed in any one of claims 1-3, wherein the cross-linking agent comprises any one of tert-butyl peroxy-2-ethylhexyl carbonate, ethyl 3, 3-di (tert-butylperoxy) butyrate, tert-butyl peroxy-3, 5-trimethylacetate, 1-di (tert-butylperoxy) -3, 5-trimethylcyclohexane, 1-di (tert-butylperoxy) cyclohexane, tert-amyl peroxy-2-ethylhexyl carbonate, tert-butylperoxy hexanoate, cumyl peroxyoctanoate, or a mixture of at least two thereof.
5. A bleed-out prevention encapsulant as claimed in any of claims 1 to 4, wherein the coupling agent comprises any one of gamma-aminopropyltriethoxysilane, gamma- (2, 3-epoxypropoxy) propoxytrimethoxysilane, gamma-methacryloxypropoxy trimethoxysilane, gamma-borxypropyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane, or a mixture of at least two thereof.
6. The anti-bleed encapsulant of any one of claims 1-5, wherein the antioxidant comprises any one or a mixture of at least two of antioxidant 1010, butylated hydroxyanisole, butylated hydroxytoluene, antioxidant 168, antioxidant 1076, antioxidant 245, antioxidant 618, and antioxidant B215, preferably antioxidant 1010.
7. A bleed encapsulation material as claimed in one of claims 1 to 6, wherein the light stabilizer comprises
7001EF, light stabilizer 622, light stabilizer 944, light stabilizer 123, light stabilizer 3853, preferably based on ^ or mixtures of at least two of>
7001EF。
8. A method for producing a bleed-out prevention encapsulant as defined in any of claims 1-7, comprising the steps of:
uniformly mixing matrix resin, a crosslinking agent, an auxiliary crosslinking agent, a coupling agent, an antioxidant and a light stabilizer by a mixer according to a ratio, then putting the mixture into a calendar, and then plasticizing, extruding, stretching, drawing and rolling to prepare the anti-precipitation packaging adhesive film.
9. The preparation method of claim 8, wherein the mixing temperature is 35-50 ℃ and the mixing time is 6-10h;
preferably, the temperature of the plasticization is 80-110 ℃.
10. Use of a precipitation-proof encapsulation material according to any of claims 1-7, wherein the precipitation-proof encapsulation material is used for the production of photovoltaic modules.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116656264A (en) * | 2023-06-21 | 2023-08-29 | 苏州易昇光学材料股份有限公司 | Low-precipitation EPE packaging adhesive film and preparation method thereof |
| CN116836650A (en) * | 2023-07-05 | 2023-10-03 | 苏州易昇光学材料股份有限公司 | Anti-slip POE adhesive film based on cyclodextrin load auxiliary agent and preparation method thereof |
-
2022
- 2022-11-29 CN CN202211534729.8A patent/CN115851172A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116656264A (en) * | 2023-06-21 | 2023-08-29 | 苏州易昇光学材料股份有限公司 | Low-precipitation EPE packaging adhesive film and preparation method thereof |
| CN116836650A (en) * | 2023-07-05 | 2023-10-03 | 苏州易昇光学材料股份有限公司 | Anti-slip POE adhesive film based on cyclodextrin load auxiliary agent and preparation method thereof |
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