CN104829975A - 一种制造pvdf太阳能背板膜原料的互溶共混方法 - Google Patents

一种制造pvdf太阳能背板膜原料的互溶共混方法 Download PDF

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CN104829975A
CN104829975A CN201510249208.1A CN201510249208A CN104829975A CN 104829975 A CN104829975 A CN 104829975A CN 201510249208 A CN201510249208 A CN 201510249208A CN 104829975 A CN104829975 A CN 104829975A
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潘柏林
梅龙
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JINAGSU HAOHUA PHOTOVOLTAIC TECHNOLOGY Co Ltd
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    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
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    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
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Abstract

本发明公开了一种制造PVDF太阳能背板膜原料的互溶共混方法，包括以下步骤：1)将原料树脂和辅助材料按配方要求配比分别计量；2)把混合机的混合室清理干净；3)对混合机的混合室外壁空腔通入蒸汽进行加热升温，蒸汽加热工作压力为0.2～0.25MPa；4)将原料树脂加入混合室内，混合1～2min，混合机搅拌桨转速为600～1100r/min；5)加入辅助材料，在高速混合机中搅拌混合6～10min，混合机搅拌桨转速为600～1100r/min，把掺混料混合均匀；6)在100～110℃进行出料；本方法能有效地对PVDF太阳能背板膜原料进行均匀混合，避免PVDF太阳能背板膜厚度不均，兼压不稳的问题，不会导致薄膜的强度不均，局部耐候性能差，从而确保PVDF太阳能背板膜整体耐候性能。

Description

一种制造PVDF太阳能背板膜原料的互溶共混方法
技术领域
本发明涉及一种原料的互溶共混方法，具体是一种用于制造PVDF太阳能背板膜原料的互溶共混方法，属于PVDF太阳能背板膜制造的技术领域。
背景技术
我国是全球第一大太阳能电池生产国，其市场份额逐年增加，现已达到60％以上。目前，产业链上的主要原材料，如电池片、玻璃、EVA胶膜等均已实现国产化。以EVA胶膜为例，其早期基本依靠进口，从2003年左右国内开始自主生产，逐渐实现市场的进口替代。由于较高的技术难度，太阳能电池背板是太阳能电池组件产业链上唯一尚未实现大规模国产化的光伏配套材料。
高质量的太阳能背板膜技术要求较高，生产太阳能背板膜的各个环节都极为重要。例如原料的配混，这个工序是太阳能背板膜生产过程中的首道工序。把树脂原料和其他一些辅助材料(如粘结剂)，按配方要求计量后掺混在一起，再在混合机中搅拌混合均匀。如果原料混合的不均匀，生产的薄膜厚度不均匀，兼压不稳，将造成强度不均匀，薄膜的局部耐候性能不稳定，导致薄膜的整体耐候性低。
发明内容
本发明的目的是提供一种制造PVDF太阳能背板膜原料的互溶共混方法，该方法能够对PVDF太阳能背板膜原料进行均匀混合。
为了达到上述技术目的，本发明的技术方案是：
一种制造PVDF太阳能背板膜原料的互溶共混方法，包括以下步骤：
(1)将原料树脂和辅助材料按配方要求配比分别计量。
为了减少原料中含水量，在所述步骤(1)前还有干燥处理的步骤：将原料在95～105℃的热风循环条件下干燥处理1.5～2h。
作为优选，所述原料树脂的含水量＜0.35％。
为了得到较均匀的混合料，所述辅助材料的颗粒小于70目。
(2)把混合机的混合室清理干净。
(3)对混合机的混合室外壁空腔通入蒸汽进行加热升温，蒸汽加热工作压力为0.2～0.25MPa。
(4)将原料树脂加入混合室内，混合1～2min，混合机搅拌桨转速为600～1100r/min。
(5)加入辅助材料，在高速混合机中搅拌混合6～10min，混合机搅拌桨转速为600～1100r/min，把掺混料混合均匀。
(6)在100～110℃进行出料。
上述原料树脂和辅助材料为PVDF树脂、PMMA树脂、改性剂、稳定剂和分散剂。向混合机的混合室内加料顺序是：PVDF树脂→PMMA树脂→改性剂→分散剂→稳定剂。
本发明方法能有效地对PVDF太阳能背板膜原料进行均匀混合，避免PVDF太阳能背板膜厚度不均，兼压不稳的问题，不会导致薄膜的强度不均，局部耐候性能差，从而确保PVDF太阳能背板膜整体耐候性能。
具体实施方式
实施例1
(1)原料树脂的含水量大于0.35％时，需要对原料进行干燥处理：将原料在100℃的热风循环条件下干燥处理2h。
(2)对辅助材料(流动改性剂、光稳定剂、热稳定剂、分散剂等)进行筛网过滤，所述辅助材料的颗粒选择小于70目。
(3)将原料树脂和辅助材料按配方要求配比分别计量。如：
(4)把混合机的混合室清理干净。
(5)对混合机的混合室外壁空腔通入蒸汽进行加热升温，蒸汽加热工作压力为0.2MPa。
(6)将原料树脂PVDF树脂、PMMA树脂加入混合室内，混合2min，混合机搅拌桨转速为800r/min。
(7)按照改性剂→分散剂→稳定剂的顺序逐一加入辅助材料，在高速混合机中搅拌混合8min，混合机搅拌桨转速为900r/min，把掺混料混合均匀。
(8)在100℃进行出料。
获得的物料混合均匀。
实施例2
(1)原料树脂的含水量大于0.35％时，需要对原料进行干燥处理：将原料在105℃的热风循环条件下干燥处理1.5h。
(2)对辅助材料(流动改性剂、光稳定剂、热稳定剂、分散剂等)进行筛网过滤，所述辅助材料的颗粒选择小于70目。
(3)将原料树脂和辅助材料按配方要求配比分别计量。如：
(4)把混合机的混合室清理干净。
(5)对混合机的混合室外壁空腔通入蒸汽进行加热升温，蒸汽加热工作压力为0.25MPa。
(6)将原料树脂PVDF树脂、PMMA树脂加入混合室内，混合2min，混合机搅拌桨转速为1000r/min。
(7)按照改性剂→分散剂→稳定剂的顺序逐一加入辅助材料，在高速混合机中搅拌混合6min，混合机搅拌桨转速为1100r/min，把掺混料混合均匀。
(8)在110℃进行出料。
获得的物料混合均匀。
上述实施例不以任何方式限制本发明，凡是采用等同替换或等效变换的方式获得的技术方案均落在本发明的保护范围内。

Claims (6)

1.一种制造PVDF太阳能背板膜原料的互溶共混方法，其特征在于包括以下步骤：
(1)将原料树脂和辅助材料按配方要求配比分别计量；
(2)把混合机的混合室清理干净；
(3)对混合机的混合室外壁空腔通入蒸汽进行加热升温，蒸汽加热工作压力为0.2～0.25MPa；
(4)将原料树脂加入混合室内，混合1～2min，混合机搅拌桨转速为600～1100r/min；
(5)加入辅助材料，在高速混合机中搅拌混合6～10min，混合机搅拌桨转速为600～1100r/min，把掺混料混合均匀；
(6)在100～110℃进行出料。
2.根据权利要求1所述的一种制造PVDF太阳能背板膜原料的互溶共混方法，其特征在于：在所述步骤(1)前还有干燥处理的步骤：将原料在95～105℃的热风循环条件下干燥处理1.5～2h。
3.根据权利要求1所述的一种制造PVDF太阳能背板膜原料的互溶共混方法，其特征在于：所述原料树脂的含水量＜0.35％。
4.根据权利要求1所述的一种制造PVDF太阳能背板膜原料的互溶共混方法，其特征在于：所述辅助材料的颗粒小于70目。
5.根据权利要求1所述的一种制造PVDF太阳能背板膜原料的互溶共混方法，其特征在于：所述原料树脂和辅助材料为PVDF树脂、PMMA树脂、改性剂、稳定剂和分散剂。
6.根据权利要求5所述的一种制造PVDF太阳能背板膜原料的互溶共混方法，其特征在于向混合机的混合室内加料顺序是：PVDF树脂→PMMA树脂→改性剂→分散剂→稳定剂。
CN201510249208.1A 2015-05-15 2015-05-15 一种制造pvdf太阳能背板膜原料的互溶共混方法 Pending CN104829975A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134359A (zh) * 2011-01-07 2011-07-27 东华大学 一种太阳能电池背膜及其制备方法
CN102516691A (zh) * 2011-10-28 2012-06-27 江苏昊华光伏科技有限公司 聚偏二氟乙烯太阳能背板膜专用白色母粒的制造方法
CN104151752A (zh) * 2014-08-28 2014-11-19 东莞市长安东阳光铝业研发有限公司 一种聚偏氟乙烯薄膜用色母粒的制备方法及应用
CN104371230A (zh) * 2014-11-13 2015-02-25 无锡中洁能源技术有限公司 一种太阳能电池用背膜材料及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134359A (zh) * 2011-01-07 2011-07-27 东华大学 一种太阳能电池背膜及其制备方法
CN102516691A (zh) * 2011-10-28 2012-06-27 江苏昊华光伏科技有限公司 聚偏二氟乙烯太阳能背板膜专用白色母粒的制造方法
CN104151752A (zh) * 2014-08-28 2014-11-19 东莞市长安东阳光铝业研发有限公司 一种聚偏氟乙烯薄膜用色母粒的制备方法及应用
CN104371230A (zh) * 2014-11-13 2015-02-25 无锡中洁能源技术有限公司 一种太阳能电池用背膜材料及其制备方法

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