CN107304279A - 一种耐候太阳能电池背板及其制备方法 - Google Patents
一种耐候太阳能电池背板及其制备方法 Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 35
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000003755 preservative agent Substances 0.000 claims abstract description 17
- 230000002335 preservative effect Effects 0.000 claims abstract description 17
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 230000004048 modification Effects 0.000 claims abstract description 16
- 238000012986 modification Methods 0.000 claims abstract description 16
- 229920002620 polyvinyl fluoride Polymers 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229920001774 Perfluoroether Polymers 0.000 claims abstract description 12
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 12
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 12
- 239000011787 zinc oxide Substances 0.000 claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 10
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 10
- 229910002012 Aerosil® Inorganic materials 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 229920000570 polyether Polymers 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 230000002745 absorbent Effects 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 125000003785 benzimidazolyl group Chemical class N1=C(NC2=C1C=CC=C2)* 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
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- 238000007493 shaping process Methods 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 239000011780 sodium chloride Substances 0.000 claims description 5
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 5
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 5
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 5
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims 2
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 claims 1
- URPFLJMILYVJPZ-UHFFFAOYSA-N benzene;2-hydroxybenzoic acid Chemical group C1=CC=CC=C1.OC(=O)C1=CC=CC=C1O URPFLJMILYVJPZ-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical group 0.000 claims 1
- 229910001629 magnesium chloride Inorganic materials 0.000 claims 1
- -1 siloxanes Chemical class 0.000 claims 1
- 235000019983 sodium metaphosphate Nutrition 0.000 claims 1
- 229940124543 ultraviolet light absorber Drugs 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 26
- 210000004027 cell Anatomy 0.000 description 12
- 238000002156 mixing Methods 0.000 description 9
- ZQBAKBUEJOMQEX-UHFFFAOYSA-N phenyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=CC=C1 ZQBAKBUEJOMQEX-UHFFFAOYSA-N 0.000 description 8
- 210000003850 cellular structure Anatomy 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229960000969 phenyl salicylate Drugs 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 229920005573 silicon-containing polymer Polymers 0.000 description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 229920002313 fluoropolymer Polymers 0.000 description 3
- 239000004811 fluoropolymer Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- VDGJOQCBCPGFFD-UHFFFAOYSA-N oxygen(2-) silicon(4+) titanium(4+) Chemical compound [Si+4].[O-2].[O-2].[Ti+4] VDGJOQCBCPGFFD-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明公开了一种耐候太阳能电池背板,属于太阳能电池背板技术领域,包括依次粘结的耐候层、粘结层和绝缘层,所述耐候层包括以下重量份的原料:聚氟乙烯30‑32份、聚偏氟乙烯8‑12份、偏氟醚橡胶7‑9份、乙烯‑醋酸乙烯共聚物1‑3份、改性硅藻土8‑10份、气相二氧化硅5‑7份、氧化锌2‑4份、乙撑双硬脂酰胺1‑3份、溴化环氧树脂3‑5份、紫外线吸收剂0.1‑0.5份、防腐剂0.1‑0.3份、分散剂1‑3份、流平剂1‑2份;本发明还公开了一种耐候太阳能电池背板的制备方法;本发明具有较佳地耐候、耐高温、耐腐蚀能力,使用时间久。
Description
技术领域
本发明涉及太阳能电池背板技术领域,具体的说,涉及了一种耐候太阳能电池背板及其制备方法。
背景技术
作为传统电能生产方法的绿色替代方案,光伏电池组件被用来利用太阳光产生电能。光伏电池组件是由各种半导体元件系统组装而成,因而必须加以保护以减轻环境作用如湿气、氧气和紫外线的影响和破坏。光伏电池组件通常采用的是在硅片两侧层压贴附玻璃或塑料膜保护层的结构。由于具有优良的强度、耐候性、抗紫外性和阻湿性能,用氟聚合物薄膜和聚酯(PET)薄膜层叠而成的背板在光伏电池组件中发挥着重要作用。
传统的背板生产方式是将预先制造好的氟聚合物薄膜特别是聚氟乙烯(PVF)薄膜粘贴于聚酯(PET)基材上,典型的是在PET两侧贴附氟聚合物薄膜而形成“三明治”结构。当氟聚合物薄膜(如PVF)用作光伏电池组件背板时,它的性能明显地改善了组件的使用寿命,使组件保证使用寿命达到25年。
但随着太阳能电池技术领域的不断发展,对其背板的要求也越来越高,这就需要背板具有更佳的耐候能力,才能满足人们的需要。
发明内容
本发明的目的在于克服上述现有技术的不足,提供了一种耐候太阳能电池背板及其制备方法,制备简单,具有较佳地耐候、耐高温、耐腐蚀能力,使用时间久。
本发明提供的一种耐候太阳能电池背板,包括依次粘结的耐候层、粘结层和绝缘层,所述耐候层包括以下重量份的原料:
聚氟乙烯30-32份、聚偏氟乙烯8-12份、偏氟醚橡胶7-9份、乙烯-醋酸乙烯共聚物1-3份、改性硅藻土8-10份、气相二氧化硅5-7份、氧化锌2-4份、乙撑双硬脂酰胺1-3份、溴化环氧树脂3-5份、紫外线吸收剂0.1-0.5份、防腐剂0.1-0.3份、分散剂1-3份、流平剂1-2份。
作为优选,所述改性硅藻土按如下方式制备得到:将质量浓度30%的氯化钠、氯化镁、氯化钙或碳酸钠溶液与硅藻土混合均匀,并于50℃保存1h,过滤、烘干制得。
作为优选,紫外线吸收剂为水杨酸苯酯、紫外线吸收剂UV-P、紫外线吸收剂UV-O、紫外线吸收剂UV-9、紫外线吸收剂UV-531、紫外线吸收剂UVP-327、紫外线吸收剂RMB的一种或二种以上的混合物。
作为优选,防腐剂为苯并米唑酯类、道维希尔-75、1,2-苯并异噻唑啉-3-酮的混合物,三者之间的重量比为2:1:1。
作为优选,分散剂为三聚磷酸钠、六偏磷酸钠和焦磷酸钠的混合物,三者之间的重量比为2:1:1.5。
作为优选,流平剂为硅油、聚二甲基硅氧烷、聚醚聚酯改性有机硅氧烷的混合物,三者之间的重量比为1:1:2。
本发明还提供了一种耐候太阳能电池背板的制备方法,包括以下步骤:
(1)、按上述重量份称取各种原料;
(2)、将聚氟乙烯、聚偏氟乙烯、偏氟醚橡胶、乙烯-醋酸乙烯共聚物、改性硅藻土、气相二氧化硅、氧化锌、乙撑双硬脂酰胺、溴化环氧树脂加入到反应釜内,加热至270-300℃后搅拌20-25min,得到混合料;
(3)、将混合料、紫外线吸收剂、防腐剂、分散剂、流平剂加入到双螺杆挤出机挤出,并压延成型,得到耐候层;
(4)、通过粘接层将耐候层和绝缘层粘结在一起,即得背板。
其中,
步骤(2)中搅拌速度为400-500r/min。
双螺杆挤出机第一段挤出温度为150-180℃,第二段为190-210℃,第三段为220-240℃。
本发明的一种耐候太阳能电池背板及其制备方法,制备简单,具有较佳地耐候、耐高温、耐腐蚀能力,使用时间久,具体的有益效果如下:
(1)、聚氟乙烯和聚偏氟乙烯具有优良的耐化学腐蚀性、耐高温色变性、耐氧化性、耐磨性、柔韧性、抗涨强度、耐冲击性强度、耐紫外线和高能辐射性,能有效地保证耐候层的性能和强度;偏氟醚橡胶具有优异的耐热性、抗氧化性、耐油性、耐腐蚀性和耐大气老化性,能有效地提高耐候层的各项性能;
(2)、乙烯-醋酸乙烯共聚物能赋予耐候层良好的耐水性、耐腐蚀性和耐严寒暴晒能力;改性硅藻土经改性后具有更强的吸附能力,能够实现对水蒸气的吸附和脱附;气相二氧化硅和氧化锌能提高耐候层的耐高温能力和抗紫外线能力,提高使用时间;
(3)、乙撑双硬脂酰胺具有润滑的作用,溴化环氧树脂具有良好的粘结能力和阻燃能力;紫外线吸收剂能提高抗紫外线能力,增加耐久;防腐剂也能提高耐候层的使用时间;分散剂和流平剂有助于耐候层制备时的稳定性;
(4)、本发明各种原料对应比例的混合,能有效地保证耐候层的耐候、耐高温、耐腐蚀能力,增加耐候层的使用寿命;耐候层、粘结层和绝缘层之间相互配合,能有效地保证太阳能电池背板的稳定性和耐久性;制备方法能有效地将各原料之间充分混合。
具体实施方式
以下结合具体实施例对发明作进一步详细的描述。
实施例1
本实施例的一种耐候太阳能电池背板,包括依次粘结的耐候层、粘结层和绝缘层,所述耐候层包括以下重量份的原料:
聚氟乙烯30份、聚偏氟乙烯8份、偏氟醚橡胶7份、乙烯-醋酸乙烯共聚物1份、改性硅藻土8份、气相二氧化硅5份、氧化锌2份、乙撑双硬脂酰胺1份、溴化环氧树脂3份、紫外线吸收剂0.1份、防腐剂0.1份、分散剂1份、流平剂1份。
本实施例中,所述改性硅藻土按如下方式制备得到:将质量浓度30%的氯化钠、氯化镁、氯化钙或碳酸钠溶液与硅藻土混合均匀,并于50℃保存1h,过滤、烘干制得。
本实施例中,紫外线吸收剂为水杨酸苯酯、紫外线吸收剂UV-P、紫外线吸收剂UV-O、紫外线吸收剂UV-9、紫外线吸收剂UV-531、紫外线吸收剂UVP-327、紫外线吸收剂RMB的混合物。
本实施例中,防腐剂为苯并米唑酯类、道维希尔-75、1,2-苯并异噻唑啉-3-酮的混合物,三者之间的重量比为2:1:1。
本实施例中,分散剂为三聚磷酸钠、六偏磷酸钠和焦磷酸钠的混合物,三者之间的重量比为2:1:1.5。
本实施例中,流平剂为硅油、聚二甲基硅氧烷、聚醚聚酯改性有机硅氧烷的混合物,三者之间的重量比为1:1:2。
本实施例还提供了一种耐候太阳能电池背板的制备方法,包括以下步骤:
(1)、按上述重量份称取各种原料;
(2)、将聚氟乙烯、聚偏氟乙烯、偏氟醚橡胶、乙烯-醋酸乙烯共聚物、改性硅藻土、气相二氧化硅、氧化锌、乙撑双硬脂酰胺、溴化环氧树脂加入到反应釜内,加热至270℃后搅拌20min,得到混合料;
(3)、将混合料、紫外线吸收剂、防腐剂、分散剂、流平剂加入到双螺杆挤出机挤出,并压延成型,得到耐候层;
(4)、通过粘接层将耐候层和绝缘层粘结在一起,即得背板。
其中,
步骤(2)中搅拌速度为400r/min。
双螺杆挤出机第一段挤出温度为150℃,第二段为190℃,第三段为220℃。
实施例2
本实施例的一种耐候太阳能电池背板,包括依次粘结的耐候层、粘结层和绝缘层,所述耐候层包括以下重量份的原料:
聚氟乙烯31份、聚偏氟乙烯10份、偏氟醚橡胶8份、乙烯-醋酸乙烯共聚物2份、改性硅藻土9份、气相二氧化硅6份、氧化锌3份、乙撑双硬脂酰胺2份、溴化环氧树脂4份、紫外线吸收剂0.3份、防腐剂0.2份、分散剂2份、流平剂1.5份。
本实施例中,所述改性硅藻土按如下方式制备得到:将质量浓度30%的氯化钠、氯化镁、氯化钙或碳酸钠溶液与硅藻土混合均匀,并于50℃保存1h,过滤、烘干制得。
本实施例中,紫外线吸收剂为水杨酸苯酯、紫外线吸收剂UV-P、紫外线吸收剂UV-O、紫外线吸收剂UV-9、紫外线吸收剂UV-531、紫外线吸收剂UVP-327、紫外线吸收剂RMB的混合物。
本实施例中,防腐剂为苯并米唑酯类、道维希尔-75、1,2-苯并异噻唑啉-3-酮的混合物,三者之间的重量比为2:1:1。
本实施例中,分散剂为三聚磷酸钠、六偏磷酸钠和焦磷酸钠的混合物,三者之间的重量比为2:1:1.5。
本实施例中,流平剂为硅油、聚二甲基硅氧烷、聚醚聚酯改性有机硅氧烷的混合物,三者之间的重量比为1:1:2。
本实施例还提供了一种耐候太阳能电池背板的制备方法,包括以下步骤:
(1)、按上述重量份称取各种原料;
(2)、将聚氟乙烯、聚偏氟乙烯、偏氟醚橡胶、乙烯-醋酸乙烯共聚物、改性硅藻土、气相二氧化硅、氧化锌、乙撑双硬脂酰胺、溴化环氧树脂加入到反应釜内,加热至285℃后搅拌23min,得到混合料;
(3)、将混合料、紫外线吸收剂、防腐剂、分散剂、流平剂加入到双螺杆挤出机挤出,并压延成型,得到耐候层;
(4)、通过粘接层将耐候层和绝缘层粘结在一起,即得背板。
其中,
步骤(2)中搅拌速度为450r/min。
双螺杆挤出机第一段挤出温度为165℃,第二段为200℃,第三段为230℃。
实施例3
本实施例的一种耐候太阳能电池背板,包括依次粘结的耐候层、粘结层和绝缘层,所述耐候层包括以下重量份的原料:
聚氟乙烯32份、聚偏氟乙烯12份、偏氟醚橡胶9份、乙烯-醋酸乙烯共聚物3份、改性硅藻土10份、气相二氧化硅7份、氧化锌4份、乙撑双硬脂酰胺3份、溴化环氧树脂5份、紫外线吸收剂0.5份、防腐剂0.3份、分散剂3份、流平剂2份。
本实施例中,所述改性硅藻土按如下方式制备得到:将质量浓度30%的氯化钠、氯化镁、氯化钙或碳酸钠溶液与硅藻土混合均匀,并于50℃保存1h,过滤、烘干制得。
本实施例中,紫外线吸收剂为水杨酸苯酯、紫外线吸收剂UV-P、紫外线吸收剂UV-O、紫外线吸收剂UV-9、紫外线吸收剂UV-531、紫外线吸收剂UVP-327、紫外线吸收剂RMB的混合物。
本实施例中,防腐剂为苯并米唑酯类、道维希尔-75、1,2-苯并异噻唑啉-3-酮的混合物,三者之间的重量比为2:1:1。
本实施例中,分散剂为三聚磷酸钠、六偏磷酸钠和焦磷酸钠的混合物,三者之间的重量比为2:1:1.5。
本实施例中,流平剂为硅油、聚二甲基硅氧烷、聚醚聚酯改性有机硅氧烷的混合物,三者之间的重量比为1:1:2。
本实施例还提供了一种耐候太阳能电池背板的制备方法,包括以下步骤:
(1)、按上述重量份称取各种原料;
(2)、将聚氟乙烯、聚偏氟乙烯、偏氟醚橡胶、乙烯-醋酸乙烯共聚物、改性硅藻土、气相二氧化硅、氧化锌、乙撑双硬脂酰胺、溴化环氧树脂加入到反应釜内,加热至300℃后搅拌25min,得到混合料;
(3)、将混合料、紫外线吸收剂、防腐剂、分散剂、流平剂加入到双螺杆挤出机挤出,并压延成型,得到耐候层;
(4)、通过粘接层将耐候层和绝缘层粘结在一起,即得背板。
其中,
步骤(2)中搅拌速度为500r/min。
双螺杆挤出机第一段挤出温度为180℃,第二段为210℃,第三段为240℃。
以上所述仅是本发明的优选实施方式,本发明的保护范围并不仅局限于上述实施例,凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理前提下的若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (9)
1.一种耐候太阳能电池背板,包括依次粘结的耐候层、粘结层和绝缘层,其特征在于:所述耐候层包括以下重量份的原料:
聚氟乙烯30-32份、聚偏氟乙烯8-12份、偏氟醚橡胶7-9份、乙烯-醋酸乙烯共聚物1-3份、改性硅藻土8-10份、气相二氧化硅5-7份、氧化锌2-4份、乙撑双硬脂酰胺1-3份、溴化环氧树脂3-5份、紫外线吸收剂0.1-0.5份、防腐剂0.1-0.3份、分散剂1-3份、流平剂1-2份。
2.根据权利要求1所述的耐候太阳能电池背板,其特征在于:所述改性硅藻土按如下方式制备得到:将质量浓度30%的氯化钠、氯化镁、氯化钙或碳酸钠溶液与硅藻土混合均匀,并于50℃保存1h,过滤、烘干制得。
3.根据权利要求1所述的耐候太阳能电池背板,其特征在于:紫外线吸收剂为水杨酸苯酯、紫外线吸收剂UV-P、紫外线吸收剂UV-O、紫外线吸收剂UV-9、紫外线吸收剂UV-531、紫外线吸收剂UVP-327、紫外线吸收剂RMB的一种或二种以上的混合物。
4.根据权利要求1所述的耐候太阳能电池背板,其特征在于:防腐剂为苯并米唑酯类、道维希尔-75、1,2-苯并异噻唑啉-3-酮的混合物,三者之间的重量比为2:1:1。
5.根据权利要求1所述的耐候太阳能电池背板,其特征在于:分散剂为三聚磷酸钠、六偏磷酸钠和焦磷酸钠的混合物,三者之间的重量比为2:1:1.5。
6.根据权利要求1所述的耐候太阳能电池背板,其特征在于:流平剂为硅油、聚二甲基硅氧烷、聚醚聚酯改性有机硅氧烷的混合物,三者之间的重量比为1:1:2。
7.根据权利要求1-6任意一项所述的一种耐候太阳能电池背板的制备方法,其特征在于:包括以下步骤:
(1)、按上述重量份称取各种原料;
(2)、将聚氟乙烯、聚偏氟乙烯、偏氟醚橡胶、乙烯-醋酸乙烯共聚物、改性硅藻土、气相二氧化硅、氧化锌、乙撑双硬脂酰胺、溴化环氧树脂加入到反应釜内,加热至270-300℃后搅拌20-25min,得到混合料;
(3)、将混合料、紫外线吸收剂、防腐剂、分散剂、流平剂加入到双螺杆挤出机挤出,并压延成型,得到耐候层;
(4)、通过粘接层将耐候层和绝缘层粘结在一起,即得背板。
8.根据权利要求7所述的耐候太阳能电池背板的制备方法,其特征在于:步骤(2)中搅拌速度为400-500r/min。
9.根据权利要求7所述的耐候太阳能电池背板的制备方法,其特征在于:双螺杆挤出机第一段挤出温度为150-180℃,第二段为190-210℃,第三段为220-240℃。
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CN102157591A (zh) * | 2011-01-11 | 2011-08-17 | 山东东岳高分子材料有限公司 | 一种太阳能电池背板及其制备方法 |
CN106206845A (zh) * | 2016-07-29 | 2016-12-07 | 无锡信大气象传感网科技有限公司 | 一种用于太阳能电池背板的氟膜及其制备方法 |
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CN109810645B (zh) * | 2017-11-21 | 2021-02-23 | 浙江蓝天环保高科技股份有限公司 | 一种隔热节能聚氟乙烯复合膜 |
CN111117438A (zh) * | 2019-12-28 | 2020-05-08 | 江阴市玲珑高分子材料有限公司 | 一种绝缘阻燃涂料 |
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