Solar cell back panel material and preparation method and product thereof
A solar cell and solar cell technology, applied in the field of material science, can solve the problems of backplane loss of water vapor, deterioration of other properties, layer separation and damage, etc., and achieve good mechanical properties, increased bonding performance, and excellent weather resistance.
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[0022] Example 1 of the present invention: Preparation of solar battery back sheet, calculated in parts by weight, 75 parts PVDF, 5 parts polyvinylidene fluoride, 10 parts polyamide, 0.3 parts rutile titanium dioxide, 3 parts silicon dioxide, 0.1 Part of antioxidant 1010 and 0.1 part of ultraviolet absorber UV-531 were blended and extruded to obtain modified PVDF material; 75 parts of PET, 2 parts of polyethylene naphthalate, and 10 parts of polycarbonate were obtained. 1 part of rutile titanium dioxide, 5 parts of montmorillonite, 0.1 part of antioxidant 1010 and 0.1 part of ultraviolet absorber UV-531 are blended, extruded and pelletized to obtain modified PET material; laminated by existing polymer micro-nano The co-extrusion device co-extrudes the modified PVDF and modified PET to form a micro-nano structure with alternating PET layer 1 and PVDF layer 2. Both PET layer 1 and PVDF layer 2 are 500 layers, and their total number of layers is 1000. , To obtain the solar battery...
Example Embodiment
[0023] Example 2 of the present invention: Preparation of solar battery backsheets, calculated in parts by weight, 70 parts PVDF, 2 parts polyamide, 3 parts polyethylene, 0.3 parts rutile titanium dioxide, 0.2 parts silicon dioxide, 0.05 parts Oxygen agent 1067 and 0.5 part of ultraviolet absorber UV-326 were blended and extruded to obtain modified PVDF material; 70 parts of PET, 2 parts of polyethylene naphthalate, and 3 parts of polybutylene terephthalate Glycol ester, 0.2 part of rutile titanium dioxide, 0.3 part of calcium carbonate, 0.05 part of antioxidant 1067 and 0.5 part of ultraviolet absorber UV-326 are blended, extruded and pelletized to obtain modified PET material; through existing polymers The micro-nano laminated co-extrusion device co-extrudes modified PVDF and modified PET to form a micro-nano structure with alternating PET layer 1 and PVDF layer 2. Both PET layer 1 and PVDF layer 2 are one layer, and their total number of layers It is two layers to obtain the...
Example Embodiment
[0024] Example 3 of the present invention: Preparation of solar cell back sheet, calculated in parts by weight, 80 parts PVDF, 5 parts polyvinylidene fluoride, 5 parts polyamide, 10 parts polyethylene, 0.5 parts rutile titanium dioxide, 2 parts Calcium carbonate, 2.8 parts of silica, 0.1 part of antioxidant 1024 and 0.1 part of ultraviolet absorber UV-9UV-P were blended and extruded to obtain modified PVDF material; 80 parts of PET, 5 parts of polyethylene naphthalene Ethylene formate, 5 parts of polycarbonate, 5 parts of polybutylene terephthalate, 2 parts of rutile titanium dioxide, 2 parts of montmorillonite, 2 parts of talc, 4 parts of calcium carbonate, 0.1 part of antioxidant 1024 and 0.1 part of UV absorber UV-9UV-P are blended, extruded and pelletized to obtain modified PET material; the modified PVDF and modified PET are co-extruded through the existing polymer micro-nano laminated co-extrusion device Out, a micro-nano structure with alternating PET layer 1 and PVDF la...
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