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 PDF

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CN107304279A
CN107304279A CN201710614984.6A CN201710614984A CN107304279A CN 107304279 A CN107304279 A CN 107304279A CN 201710614984 A CN201710614984 A CN 201710614984A CN 107304279 A CN107304279 A CN 107304279A
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王磊
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合肥华盖光伏科技有限公司
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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

一种耐候太阳能电池背板及其制备方法
技术领域
[0001]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
[0002]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。
[0003]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。
[0004]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
[0005]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。
[0006]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、防腐剂〇•卜0.3份、分散剂1-3份、流平剂1-2份。 [0007]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5(TC保存lh,过滤、烘干制得。 _8]作为优选,紫外线吸收剂为水杨酸苯醋、紫外线吸收剂^^、紫外线吸收剂uv—〇、 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。
[0009]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。
[0010]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(5
[0011]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。
[0012] 土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; 一/⑵:巧氣乙稀、聚偏氟乙稀、偏氟纖胶、乙煤-醋酸乙稀共聚物、改性桂藻土、气相 氧化桂、氧化锌、乙撑双硬脂酰胺、溴化环氧树脂加入到反应加热至270_300 拌20-25min,得到混合料; (3) 、将混合料、紫外_收剂、_剂、分散剂、流平剂加人到双螺杆挤出机挤出,瓶 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。
[0013]其中, 步骤(2)中搅拌速度为400-500r/min。
[0014]双螺杆挤出机第一段挤出温度为150-180。C,第二段为190-210。C,第三段为220-240。C。
[0015]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 尚温、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) 、乙條-醋酸乙燦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
[0016]以下结合具体实施例对发明作进一步详细的描述。
[0017] 实施例i 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3〇份、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 剂〇. 1份、防腐剂0 • 1份、分散剂1份、流平剂1份。
[0018]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5〇 °C保存lh,过滤、烘干制得。
[0019]本实施例中,紫外线吸收剂为水杨酸苯醋、紫外线吸收剂UV-P、紫外线吸收剂UV— 0、紫外舰㈣UV-9、紫外麵彳細、紫外舰_卿—327、紫外舰收獅B的混 合物。
[0020]本实施例中,防腐剂为苯并米哩酯类、道维希尔—75 合物,三者之_重舰为2:1:1。 *
[0021]丨头施例中,分目女剂为二聚磷酸钠、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。 — ^02!^、本实平剂为娃油、聚二甲基娃氧院、聚醚聚醋改性有机桂氧焼的混合 物,二者乙间的重量比为1:1:2。 _3]轉施例还提供了—种耐候太阳能电池背板_」备方法,包括以下步骤: (1)、按上述重量份称取各种原料; 一一(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 一氧化娃、氧化锌、乙撑双硬酰胺、溴化环氧树脂加入到反应爸内,加热至27〇。〇后揽摔 20min,得到混合料; (3) 、将?比n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,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。
[0024]其中, 步骤(2)中搅拌速度为400r/min。 _5]賴杆挤出机第-段挤出温度为丨就,第二段为丨㈣,第三段为22代 [0026] 实施例2 本头施例的-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: 聚氟乙炼31份、聚偏氟乙稀1〇份、偏氟醚橡胶8份、乙嫌—醋酸乙稀共聚物2份、改性硅藻 土 9份、气相二氧化娃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、防腐剂〇_2份、分散舰份、流平剂15份。 、—
[0027]—本实删巾,腿改醜駐_下方式織翻:将醒浓度3喊雜纳、氯 化镁、氯德或麵雜购纖城合购,并于抓棘lh,通、鮮制得。
[。。28]、本头施例中,紫外线吸收剂为水杨酸苯醋、紫外线吸收細V_p、紫外线吸收剂UV_ 0、紫外线吸彳遽UV-9、紫外线吸齡ijUV_531、紫外嫌_腳—327、紫⑽徽細^的混 合物。
[0029]丨实酬巾,醜勘雜米魏类、讎希尔m,2—苯并异3—酮的混 合物,三者之间的重量比为2:1:1。
[0030]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。 —
[003^]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。 _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,傭以下步骤: (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 ^氧IHSf撑双硬職胺、舰職機加人通应軸,她S285°c后攤 延成紫外线吸收剂、防腐剂、分散剂、流平剂加入到双螺杆挤出机挤出,并压 (4)、通过粘接层将耐候层和绝缘层粘结在一起,即得背板。
[0033]其中, 步骤(2)中搅拌速度为450r/min。
[0034]双螺杆挤出机第-段挤出温度为ie5〇c,第二段为2〇〇。〇,第
[0035]实施例3 ~ ° 本实施例的-_推太_幢籠,包撇次粘结_艱、繼尉卩 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g份、乙烯—醋酸乙烯共聚物3份、改性硅藻 土 10份、气相二氧化娃7份、靴锌4份、乙撑双硬獅先胺3份、溴化环氧树脂5份、紫 剂0•5份、防腐齐Ijo. 3份、分散剂3份、流平剂2份。 、一
[。_ ^;实翻巾,所,義雜土按如下方式制备翻:額量嫌継的氯化纳、氯 化镁、氯化1丐或碳酸钠溶液与硅藻土混合均匀,并于5(rc保存lh,过滤、烘干制得。
[0037]本实施例中,紫外线吸收剂为水杨酸苯酯、紫外线吸收剂1]卜15、紫外线吸收剂uv_ 0、紫外线吸收剂UV-9、紫外线吸收剂UV-531、紫外线吸收剂UVP-幻7、紫外线吸收剂冊郎勺混 合物。
[0038]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。
[0039]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。 ~
[0040]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。
[0041] 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3〇(rc后搅拌 25min,得到混合料; ⑶、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_•起,即得背板。
[0042] 其中, 步骤(2)中搅拌速度为500r/min。
[0043] 双螺杆挤出机第一段挤出温度为180 °C,第二段为21(TC,第三段为240。匚。
[0044]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3〇_32份、聚偏氟乙烯8-12份、偏氟醚橡胶7-9份、乙烯-醋酸乙烯共聚物卜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、防腐剂〇.1-〇.3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3〇%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°C保存lh,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 酷、紫外线吸收剂UV-P、紫外线吸收剂UV-0、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:丨:丄。
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:丨:丨.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 桂氧烧、聚醚聚酯改性有机娃氧焼的混合物,三者之间的重量比为i :丨: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 一氧化娃、氧化锌、乙撑双硬脂酰胺、溴化环氧树脂加入到反应爸内,加热g27〇_3〇〇1>c后搅 拌20-25min,得到混合料; ⑶、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.棚权利要求7所述的®•候太阳能电池背板的制备方法,其特征在于:步骤⑵中搅 样速度为400-500r/min。 …臟m*!候太隨幢龍的祕,婦_于:賴杆挤出机 弟一段挤出5W度为l5〇-l8〇 C,第二段为丨㈤―21(rc,第三段为22〇—24〇<>c。
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