CN107502079A - 一种黑色焊带复合材料及其制作方法 - Google Patents

一种黑色焊带复合材料及其制作方法 Download PDF

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CN107502079A
CN107502079A CN201710765934.8A CN201710765934A CN107502079A CN 107502079 A CN107502079 A CN 107502079A CN 201710765934 A CN201710765934 A CN 201710765934A CN 107502079 A CN107502079 A CN 107502079A
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resin
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张立强
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Have New Materials (huizhou) Co Ltd
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Abstract

本发明揭示一种黑色焊带复合材料及其制作方法，其包括焊带和涂覆于焊带表面的黑色涂层，黑色涂层包括5～40份有机树脂、1～20份黑色颜料、1～10份偶联剂、0～70份导电粉、0～70份散热粉及0.5～5份助剂，份数为重量份数，其中有机树脂为氟碳树脂乳液、氨基树脂、酚醛树脂、丙烯酸树脂、环氧树脂或水溶性树脂。通过将不同的组分混合分别制作出不同性能的黑色焊带，从而赋予焊带多种功能，扩大其使用范围。通过将焊带通过黑色涂料复合粘接，提高焊带表面光洁度，节省后续贴胶工序，节省人工成本，提高生产效益；同时增加焊带的散热导电功能，加工方便，成本低廉，适合推广使用。

Description

一种黑色焊带复合材料及其制作方法
技术领域
本发明涉及焊带技术领域，具体地，涉及一种黑色焊带复合材料及其制作方法。
背景技术
焊带是光伏组件焊接过程中的重要原材料，焊带质量的好坏将直接影响到光伏组件电流的收集效率，对光伏组件的功率影响很大。
光伏组件也叫太阳能电池板，由多个太阳能电池片组合而成。目前电池片组装工艺焊接过程有两种方式，一种是折叠正面焊接，将焊带焊接到电池正面(负极)的主栅线上，焊带为镀锡的铜带，通过红外线焊接机将焊带以多点的形式点焊在主栅线上。焊带的长度约为电池边长的2倍。多出的焊带在背面焊接时与后面的电池片的背面电极相连。另一种方式是折叠背面串接，是将36片电池片串接在一起形成一个组件串，通过手动操作，电池片通过模具定位，模具上有36个放置电池片的凹槽，槽的大小和电池片的大小相对应，不同规格的光伏组件使用不同的模具。作业人员使用电烙铁和焊锡丝将“前面电池片”的正面电极(负极)焊接到“后面电池”的背面电极(正极)上，这样依次将36片电池片串接在一起并在组件串的正负极焊接出引线。
由于焊带与电池片颜色不一致，电池片为黑色，焊带颜色为银色，整个电池组外观不协调，目前常用方法是焊接完成后在焊带表面贴合一层黑色耐高温胶带，使得光伏组件的整体外观为黑色。但是贴合过程比较耗时、效率低下、整体不美观。
发明内容
针对现有技术的不足，本发明提供一种黑色焊带复合材料及其制作方法。
本发明公开的一种黑色焊带复合材料，其包括焊带和涂覆于焊带表面的黑色涂层，黑色涂层包括5～40份有机树脂、1～20份黑色颜料、1～10份偶联剂、0～70份导电粉、0～70份散热粉及0.5～5份助剂，份数为重量份数，其中有机树脂为氟碳树脂乳液、氨基树脂、酚醛树脂、丙烯酸树脂、环氧树脂或水溶性树脂。
根据本发明的一实施方式，上述黑色颜料包括炭黑或铁黑。
根据本发明的一实施方式，上述散热粉包括氮化硼、碳纳米管、石墨烯、氧化铝、氧化锌、氧化镁及碳化硅中的一种或多种。
根据本发明的一实施方式，上述助剂包括固化剂、附着力促进剂、分散剂、流平剂及消泡剂中的一种或多种。
根据本发明的一实施方式，上述焊带的厚度为0.05～0.2mm。
本发明还揭示了一种黑色焊带复合材料的制作方法，包括以下步骤：
将偶联剂与黑色颜料、散热粉及导电粉混合分散，使偶联剂包覆于黑色颜料、散热粉及导电粉表面；
将经过上述步骤处理后的黑色颜料、散热粉及导电粉与有机树脂及助剂混合分散，分散时间为5分钟，分散速度为800转/分钟，分散完毕后真空除气，制得黑色胶液；
将黑色胶液涂布于焊带表面，并与130℃烘烤固化30分钟，制得黑色焊带。
根据本发明的一实施方式，上述黑色胶液的涂布厚度为0.01～0.2mm。
与现有技术相比，本发明可以获得包括以下技术效果：
通过利用树脂固化后的附着特性与焊带粘接，增加焊带表面光洁度；通过黑色颜料增加黑度，提高成品的美观度，节省加工工序，成本低廉，提高生产效益；通过散热粉和导电粉提高表面导电能力和散热能力。
具体实施方式
以下将揭露本申请的多个实施方式，为明确说明起见，许多实务上的细节将在以下叙述中一并说明。然而，应了解到，这些实务上的细节不应用以限制本申请。也就是说，在本申请的部分实施方式中，这些实务上的细节是非必要的。
需要说明，本发明实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
本申请的黑色焊带复合材料包括焊带和涂覆于焊带表面的黑色涂层。其中黑色涂层由黑色胶料固化而成，其包括5～40份有机树脂、1～20份黑色颜料、1～10份偶联剂、0～70份导电粉、0～70份散热粉及0.5～5份助剂，份数为重量份数，其中有机树脂为氟碳树脂乳液、氨基树脂、酚醛树脂、丙烯酸树脂、环氧树脂或水溶性树脂；黑色颜料包括炭黑或铁黑；散热粉包括氮化硼、碳纳米管、石墨烯、氧化铝、氧化锌、氧化镁及碳化硅中的一种或多种；助剂包括固化剂、附着力促进剂、分散剂、流平剂及消泡剂中的一种或多种。以下通过三个实施例详细说明本申请的黑色焊带复合材料的制作方法。
实施例1
本实施例的黑色涂层包括40份有机树脂、10份黑色颜料、10份偶联剂、40份散热粉及2.5份助剂，焊带的厚度为0.1mm。首先利用偶联剂对散热粉及黑色颜料进行表面处理，将偶联剂和散热粉及黑色颜料混合并高速分散，使散热粉和黑色颜料表面均匀包覆一层偶联剂，增强其与后续的树脂基体的相容性。接着将处理后的散热粉及黑色颜料与有机树脂和助剂装入高速分散机中进行混合分散，分散时间为5分钟，分散速度为800转/分钟，制得黑色胶液。分散完毕后通过抽真空排出黑色胶液内的气体，防止涂覆时产生气孔影响表面光洁度。最后将黑色胶液通过涂布工艺或喷涂工艺均匀涂覆在焊带表面，涂覆厚度为0.01～0.2mm，涂覆完毕后高温烘烤成型，烘烤温度为130℃，烘烤时间为30分钟，即制得黑色焊带成品。本实施例制得的黑色焊带具有良好的散热性。
实施例2
本实施例的黑色涂层包括40份有机树脂、10份黑色颜料、10份偶联剂、40份导电粉及2.5份助剂，焊带的厚度为0.1mm。首先利用偶联剂对导电粉和黑色颜料进行表面处理，将偶联剂和导电粉及黑色颜料混合并高速分散，使导电粉和黑色颜料表面均匀包覆一层偶联剂，增强其与后续的树脂基体的相容性。接着将处理后的导电粉及黑色颜料与有机树脂和助剂装入高速分散机中进行混合分散，分散时间为5分钟，分散速度为800转/分钟，制得黑色胶液。分散完毕后通过抽真空排出黑色胶液内的气体，防止涂覆时产生气孔影响表面光洁度。最后将黑色胶液通过涂布工艺或喷涂工艺均匀涂覆在焊带表面，涂覆厚度为0.01～0.2mm，涂覆完毕后高温烘烤成型，烘烤温度为130℃，烘烤时间为30分钟，即制得黑色焊带成品。本实施例支撑的黑色焊带具有良好的导电性。
实施例3
本实施例的黑色涂层包括40份有机树脂、10份黑色颜料、10份偶联剂及2.5份助剂，焊带的厚度为0.1mm。首先利用偶联剂对黑色颜料进行表面处理，将偶联剂和黑色颜料混合并高速分散，使黑色颜料表面均匀包覆一层偶联剂，增强其与后续的树脂基体的相容性。接着将处理后的黑色颜料与有机树脂和助剂装入高速分散机中进行混合分散，分散时间为5分钟，分散速度为800转/分钟，制得黑色胶液。分散完毕后通过抽真空排出黑色胶液内的气体，防止涂覆时产生气孔影响表面光洁度。最后将黑色胶液通过涂布工艺或喷涂工艺均匀涂覆在焊带表面，涂覆厚度为0.01～0.2mm，涂覆完毕后高温烘烤成型，烘烤温度为130℃，烘烤时间为30分钟，即制得黑色焊带复合材料成品。
综上所述，通过上述三个实施例不同的组分分别制作出不同性能的黑色焊带，从而赋予焊带多种功能，扩大其使用范围。通过将焊带通过黑色涂料复合粘接，提高焊带表面光洁度，节省后续贴胶工序，节省人工成本，提高生产效益；同时增加焊带的散热导电功能，加工方便，成本低廉，适合推广使用。
上所述仅为本发明的实施方式而已，并不用于限制本发明。对于本领域技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原理的内所作的任何修改、等同替换、改进等，均应包括在本发明的权利要求范围之内。

Claims (7)

1.一种黑色焊带复合材料，其特征在于，包括焊带和涂覆于所述焊带表面的黑色涂层，所述黑色涂层包括5～40份有机树脂、1～20份黑色颜料、1～10份偶联剂、0～70份导电粉、0～70份散热粉及0.5～5份助剂，所述份数为重量份数，其中所述有机树脂为氟碳树脂乳液、氨基树脂、酚醛树脂、丙烯酸树脂、环氧树脂或水溶性树脂。
2.根据权利要求1所述的黑色焊带复合材料，其特征在于，所述黑色颜料包括炭黑或铁黑。
3.根据权利要求2所述的黑色焊带复合材料，其特征在于，所述散热粉包括氮化硼、碳纳米管、石墨烯、氧化铝、氧化锌、氧化镁及碳化硅中的一种或多种。
4.根据权利要求2所述的黑色焊带复合材料，其特征在于，所述助剂包括固化剂、附着力促进剂、分散剂、流平剂及消泡剂中的一种或多种。
5.根据权利要求2所述的黑色焊带复合材料，其特征在于，所述焊带的厚度为0.05～0.2mm。
6.一种根据权利要求1-5任一所述的黑色焊带复合材料的制作方法，其特征在于，包括以下步骤：
将所述偶联剂与所述黑色颜料、散热粉及导电粉混合分散，使所述偶联剂包覆于所述黑色颜料、散热粉及导电粉表面；
将经过上述步骤处理后的所述黑色颜料、散热粉及导电粉与所述有机树脂及助剂混合分散，分散时间为5分钟，分散速度为800转/分钟，分散完毕后真空除气，制得黑色胶液；
将所述黑色胶液涂布于所述焊带表面，并与130℃烘烤固化30分钟，制得黑色焊带。
7.根据权利要求6所述的制作方法，其特征在于，所述黑色胶液的涂布厚度为0.01～0.2mm。
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