Solar cell assembly backplane and preparation method thereof
A technology of solar cells and components, applied in the field of solar energy, which can solve the problems of increased cost of solvents, increased manufacturing costs, and environmental pollution
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[0078] Example 1
[0079] Using ordinary extrusion grade polyvinylidene fluoride PVDF plastic particles, adding 15% polymethyl methacrylate PMMA and 5% surface-treated titanium dioxide TiO 2 , as an inorganic filler, extruded, mixed and granulated through a twin-screw extruder 6 at a temperature of about 200 ° C to obtain PVDF mixture plastic particles as the second film layer and the third film layer material. Using terephthalate adipamide / isophthalate adipamide copolyamide plastic particles, adding 20% ethylene methyl acrylate copolymer EMA, 5% surface-treated titanium dioxide TiO 2 and 0.2% heat stabilizer, extrude, mix and granulate through twin-screw extruder 6 at a temperature of about 260° C. to obtain nylon mixture plastic particles as the base film material.
[0080]The PVDF plastic particles and the nylon mixture plastic particles were melted and co-extruded through an extruder, respectively, and a composite film was prepared through a co-extrusion adapter 7 and a...
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[0087] Example 2
[0088] Using ordinary extrusion grade polytetrafluoroethylene PTEF plastic particles, adding 15% polymethyl methacrylate PMMA and adding 5% surface-treated silica SiO 2 , as an inorganic filler, extruded, mixed and granulated by a twin-screw extruder 6 at a temperature of about 200 ° C to obtain PTFE mixture plastic particles as the material of the second film layer and the third film layer. Made of polyamide 1010 with addition of 20% ethylene methyl acrylate copolymer EMA, 5% surface treated silica SiO 2 With 0.2% heat stabilizer and 0.1% light stabilizer, through twin-screw extruder 6 at about 260 ℃ temperature extrusion mixing and granulation, to obtain nylon mixture plastic particles as the base film material.
[0089] The rest of the preparation process is the same as in Example 1. Thereby, a PTEF / nylon / PTEF three-layer laminate film was obtained, and the thicknesses of the three layers were 20 / 240 / 20 microns, respectively.
[0090] Then, the prepare...
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[0096] Example 3
[0097] Using ordinary extrusion grade PHMA polymaleic anhydride plastic particles, adding 15% polymethyl methacrylate PMMA and adding 5% surface-treated silicon carbide SiC, as inorganic fillers, through a twin-screw extruder 6 at 200 The temperature of about ℃ is extruded, mixed and granulated to obtain PHMA mixed plastic particles as the material of the second film layer and the third film layer. Using polyamide 1010, adding 20% ethylene methyl acrylate copolymer EMA, 5% surface-treated silicon carbide SiC and 0.2% heat stabilizer, 0.1% light stabilizer and 0.1% plasticizer, through a twin-screw extruder 6 Extrude, mix and granulate at a temperature of about 260°C to obtain nylon mixture plastic particles as the base film material.
[0098] The rest of the preparation process is the same as in Example 1. Thereby, a PHMA / nylon / PHMA three-layer laminate film was obtained, and the thicknesses of the three layers were 25 / 235 / 25 microns, respectively.
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