CN106863970A - 一种快启动大功率柔性电热膜及其制备方法 - Google Patents

一种快启动大功率柔性电热膜及其制备方法 Download PDF

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CN106863970A
CN106863970A CN201611199396.2A CN201611199396A CN106863970A CN 106863970 A CN106863970 A CN 106863970A CN 201611199396 A CN201611199396 A CN 201611199396A CN 106863970 A CN106863970 A CN 106863970A
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蒋国辉
苏冠贤
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Dongguan Corehelm Electronic Material Technology Co Ltd
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Abstract

本发明公开了一种快启动大功率柔性电热膜，该柔性电热膜为三层复合结构且包括依次层叠布置的柔性基材、电热功能层、封装层；柔性基材为聚酰亚胺膜、聚四氟乙烯膜、聚偏氟乙烯膜、聚醚砜膜、氟化乙烯丙烯共聚物膜、聚氟乙烯膜、聚酯膜或者聚丙乙烯膜；电热功能层为金属箔，金属箔为铜箔、镍箔、铝箔、铝银箔或者银箔；封装层为导热胶片、导热胶或者导热膏。该制备方法包括：a、电热功能层制作；b、通过热固性粘结性树脂贴合电热功能层、柔性基材；c、热固化处理；d、贴上或涂上封装层。该快启动大功率柔性电热膜具有以下优点：热启动快、功率大、结构合理、节能环保、工艺流程短、制作成本低、易于规模化生产。

Description

一种快启动大功率柔性电热膜及其制备方法
技术领域
本发明涉及电热膜技术领域，尤其涉及一种快启动大功率柔性电热膜及其制备方法。
背景技术
柔性发热膜因具有柔软形变特性，可进行任意形状的设计和加工，适合于各种异型件表面应用，因而研究及应用越来越广泛。
如何进一步简化柔性发热膜的结构及制备工艺，提供一种简单、节能环保、易于工业生产的发热膜具有重要价值。
发明内容
本发明的目的在于提供一种快启动大功率柔性电热膜，该快启动大功率柔性电热膜具有以下优点，具体为：热启动快、功率大、结构合理、节能环保、工艺流程短、制作成本低、易于规模化生产。
本发明的另一目的在于一种快启动大功率柔性电热膜的制备方法，该制备方法能够有效地生产制备上述快启动大功率柔性电热膜。
为达到上述目的，本发明通过以下技术方案来实现。
一种快启动大功率柔性电热膜，该柔性电热膜为三层复合结构，且柔性电热膜包括有依次层叠布置的柔性基材、电热功能层、封装层；
柔性基材为聚酰亚胺膜、聚四氟乙烯膜、聚偏氟乙烯膜、聚醚砜膜、氟化乙烯丙烯共聚物膜、聚氟乙烯膜、聚酯膜或者聚丙乙烯膜；
电热功能层为金属箔，金属箔为铜箔、镍箔、铝箔、铝银箔或者银箔；
封装层为导热胶片、导热胶或者导热膏。
一种快启动大功率柔性电热膜的制备方法，包括有以下工艺步骤，具体为：
a、将金属箔依据要求剪裁成设计图形，以完成电热功能层制作；其中，金属箔为铜箔、镍箔、铝箔、铝银箔或者银箔；
b、在电热功能层一面涂布热固性粘结性树脂，然后通过热固性粘结性树脂将电热功能层贴合到柔性基材表面，柔性基材为聚酰亚胺膜、聚四氟乙烯膜、聚偏氟乙烯膜、聚醚砜膜、氟化乙烯丙烯共聚物膜、聚氟乙烯膜、聚酯膜或者聚丙乙烯膜；
c、将贴合有电热功能层的柔性基材置于烤箱中进行热固化处理，以完成柔性电热片制作；
d、在柔性电热片贴有电热功能层的一面贴上或涂上封装层，以完成柔性发热膜制作，封装层为导热胶片、导热胶或者导热膏。
其中，所述热固性粘结性树脂为聚酰亚胺树脂、不饱和树脂、环氧树脂、聚氨酯、丙烯酸树脂、酚醛树脂或者有机硅树脂。
其中，所述步骤c中的热固化处理为低温热固化处理，固化温度为30℃-200℃。
本发明的有益效果为：本发明所述的一种快启动大功率柔性电热膜，该柔性电热膜为三层复合结构，且柔性电热膜包括有依次层叠布置的柔性基材、电热功能层、封装层；柔性基材为聚酰亚胺膜、聚四氟乙烯膜、聚偏氟乙烯膜、聚醚砜膜、氟化乙烯丙烯共聚物膜、聚氟乙烯膜、聚酯膜或者聚丙乙烯膜；电热功能层为金属箔，金属箔为铜箔、镍箔、铝箔、铝银箔或者银箔；封装层为导热胶片、导热胶或者导热膏。该快启动大功率柔性电热膜具有以下优点，具体为：热启动快、功率大、结构合理、节能环保、工艺流程短、制作成本低、易于规模化生产。
本发明的另一有益效果为：本发明所述的一种快启动大功率柔性电热膜的制备方法，其包括有以下工艺步骤：a、将金属箔依据要求剪裁成设计图形，以完成电热功能层制作；其中，金属箔为铜箔、镍箔、铝箔、铝银箔或者银箔；b、在电热功能层一面涂布热固性粘结性树脂，然后通过热固性粘结性树脂将电热功能层贴合到柔性基材表面，柔性基材为聚酰亚胺膜、聚四氟乙烯膜、聚偏氟乙烯膜、聚醚砜膜、氟化乙烯丙烯共聚物膜、聚氟乙烯膜、聚酯膜或者聚丙乙烯膜；c、将贴合有电热功能层的柔性基材置于烤箱中进行热固化处理，以完成柔性电热片制作；d、在柔性电热片贴有电热功能层的一面贴上或涂上封装层，以完成柔性发热膜制作，封装层为导热胶片、导热胶或者导热膏。通过上述工艺步骤设计，该制备方法能够有效地生产制备上述快启动大功率柔性电热膜。
附图说明
下面利用附图来对本发明进行进一步的说明，但是附图中的实施例不构成对本发明的任何限制。
图1为本发明的结构示意图。
图2为本发明另一种实施方式的结构示意图。
在图1和图2中包括有：
1——柔性基材
2——电热功能层
3——封装层。
具体实施方式
下面结合具体的实施方式来对本发明进行说明。
实施例一，一种快启动大功率柔性电热膜，其具有三层结构且包括柔性基材1、电热功能层2以及封装层3。
其中，柔性基材1为聚酰亚胺膜PI，电热功能层2为铜箔且电热功能层2设计为折叠形状（如图1所示），封装层3为导热硅脂。
需进一步指出，本实施例一的快启动大功率柔性电热膜具有以下优点，具体为：热启动快、功率大、结构合理、节能环保、工艺流程短、制作成本低、易于规模化生产。
另外，本实施例一的快启动大功率柔性电热膜可以采用以下制备方法制备而成，具体的，一种快启动大功率柔性电热膜的制备方法，其包括有以下工艺步骤：
a、将铜箔按照设计要求剪裁成折叠形状，完成电热功能层2制作；
b、在电热功能层2一面涂布环氧树脂，然后贴合到聚酰亚胺膜PI表面；
c、将贴合有铜箔的PI膜置于烤箱中150℃热固化，完成柔性电热片制作；
d、在柔性电热片贴有电热功能层2一面涂上导热硅脂封装层3，完成柔性电热膜制作。
其中，本实施例一的电热功能层2电阻小，功率可达10W/cm2，电热启动时间3s。
实施例二，一种快启动大功率柔性电热膜，其具有三层结构，包括柔性基材1、电热功能层2以及封装层3。
其中，柔性基材1选为为聚酯膜PET，电热功能层2为镍箔且电热功能层2设计为方条形（如图2所示），封装层3为导热硅脂。
需进一步指出，本实施例二的快启动大功率柔性电热膜具有以下优点，具体为：热启动快、功率大、结构合理、节能环保、工艺流程短、制作成本低、易于规模化生产。
另外，本实施例二的快启动大功率柔性电热膜可以采用以下制备方法制备而成，具体的，一种快启动大功率柔性电热膜的制备方法，其包括有以下工艺步骤：
a、将型镍箔按照设计要求剪裁方条形，完成电热功能层2制作；
b、在电热功能层2一面涂布环氧树脂，然后贴合到PET膜表面；
c、将贴合有金属箔层的PET膜置于烤箱中50℃热固化，完成柔性电热片制作；
d、在柔性电热片贴有金属箔层一面涂上导热硅脂封装层3，完成柔性发热膜制作。
其中，本实施例二的电热功能层2电阻小，功率可达9W/cm2，电热启动时间5s。
以上内容仅为本发明的较佳实施例，对于本领域的普通技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，本说明书内容不应理解为对本发明的限制。

Claims (4)

1.一种快启动大功率柔性电热膜，其特征在于：该柔性电热膜为三层复合结构，且柔性电热膜包括有依次层叠布置的柔性基材（1）、电热功能层（2）、封装层（3）；
柔性基材（1）为聚酰亚胺膜、聚四氟乙烯膜、聚偏氟乙烯膜、聚醚砜膜、氟化乙烯丙烯共聚物膜、聚氟乙烯膜、聚酯膜或者聚丙乙烯膜；
电热功能层（2）为金属箔，金属箔为铜箔、镍箔、铝箔、铝银箔或者银箔；
封装层（3）为导热胶片、导热胶或者导热膏。
2.一种快启动大功率柔性电热膜的制备方法，其特征在于，包括有以下工艺步骤，具体为：
a、将金属箔依据要求剪裁成设计图形，以完成电热功能层（2）制作；其中，金属箔为铜箔、镍箔、铝箔、铝银箔或者银箔；
b、在电热功能层（2）一面涂布热固性粘结性树脂，然后通过热固性粘结性树脂将电热功能层（2）贴合到柔性基材（1）表面，柔性基材（1）为聚酰亚胺膜、聚四氟乙烯膜、聚偏氟乙烯膜、聚醚砜膜、氟化乙烯丙烯共聚物膜、聚氟乙烯膜、聚酯膜或者聚丙乙烯膜；
c、将贴合有电热功能层（2）的柔性基材（1）置于烤箱中进行热固化处理，以完成柔性电热片制作；
d、在柔性电热片贴有电热功能层（2）的一面贴上或涂上封装层（3），以完成柔性发热膜制作，封装层（3）为导热胶片、导热胶或者导热膏。
3.根据权利要求2所述的一种快启动大功率柔性电热膜的制备方法，其特征在于：所述热固性粘结性树脂为聚酰亚胺树脂、不饱和树脂、环氧树脂、聚氨酯、丙烯酸树脂、酚醛树脂或者有机硅树脂。
4.根据权利要求2所述的一种快启动大功率柔性电热膜的制备方法，其特征在于：所述步骤c中的热固化处理为低温热固化处理，固化温度为30℃-200℃。
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