CN108977114A - 一种耐高温示温绝缘胶带 - Google Patents

一种耐高温示温绝缘胶带 Download PDF

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CN108977114A
CN108977114A CN201810570813.2A CN201810570813A CN108977114A CN 108977114 A CN108977114 A CN 108977114A CN 201810570813 A CN201810570813 A CN 201810570813A CN 108977114 A CN108977114 A CN 108977114A
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邓佩华
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TAICANG XINHONG ELECTRONIC TECHNOLOGY CO LTD
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Abstract

本发明公开了一种耐高温示温绝缘胶带,包括:耐高温压敏胶层、聚酰亚胺薄膜层和耐高温示温涂层三部分;所述耐高温压敏胶层为所述耐高温示温绝缘胶带的最底层;所述聚酰亚胺薄膜层通过涂布机涂覆与所述耐高温压敏胶层上表面,涂布机涂覆方式为传递辊式涂布;所述耐高温示温涂层通过涂布机涂布于所述聚酰亚胺薄膜层上表面,涂布机涂布方式为高压喷涂涂布。本发明通过三层复合结构,提高了产品的物理性能;通过加入耐高温压敏胶,提高了产品的耐高温性能;通过加入聚酰亚胺,使得产品具有耐高温,抗拉强度高,耐化学性佳、无残胶,符合RoHS环保无卤等优点;通过加入耐高温示温涂层,使得产品获得了在高温环境下变色的特性,从而起到提醒、警示的作用。

Description

一种耐高温示温绝缘胶带
技术领域
本发明涉及胶带领域,特别是涉及一种耐高温示温绝缘胶带。
背景技术
以颜色或现象变化来指示物体表面温度及温度分布的胶带,称为示温胶带。这类胶带适于水银温 度计、毫伏计、辐射高测计不宜测温的地方,或连续运转的部件及大面积表面温度分布的测示。如用于化工、炼油、反应釜外壁起到超温报警作用,用于飞机发动机和内部仪表、蒙皮结构的温度测定和温度分布测示等。在某些特殊领域内,示温胶带必须符合能够耐受高温、绝缘等多种环境要求,因此,制备一种耐高温并且具有绝缘性能的胶带,从而满足研究生产需求,非常迫切。
发明内容
本发明主要解决的技术问题是提供一种耐高温示温绝缘胶带,通过三层复合结构,提高了产品的物理性能;通过加入耐高温压敏胶,提高了产品的耐高温性能;通过加入聚酰亚胺,使得产品具有耐高温,抗拉强度高,耐化学性佳、无残胶,符合RoHS环保无卤等优点;通过加入耐高温示温涂层,使得产品获得了在高温环境下变色的特性,从而起到提醒、警示的作用。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种耐高温示温绝缘胶带,包括:耐高温压敏胶层、聚酰亚胺薄膜层和耐高温示温涂层三部分;所述耐高温压敏胶层为所述耐高温示温绝缘胶带的最底层;所述聚酰亚胺薄膜层通过涂布机涂覆与所述耐高温压敏胶层上表面,涂布机涂覆方式为传递辊式涂布;所述耐高温示温涂层通过涂布机涂布于所述聚酰亚胺薄膜层上表面,涂布机涂布方式为高压喷涂涂布。
在本发明一个较佳实施例中,所述耐高温压敏胶层材料为改性丙烯酸酯压敏胶。
在本发明一个较佳实施例中,所述聚酰亚胺薄膜层材料为聚双马来酰亚胺。
在本发明一个较佳实施例中,所述耐高温示温涂层材料为碳酸镍。
在本发明一个较佳实施例中,所述耐高温压敏胶层厚度为0. 5μm。
在本发明一个较佳实施例中,所述聚酰亚胺薄膜层厚度为0.6μm。
在本发明一个较佳实施例中,所述耐高温示温涂层厚度为0.3μm。
本发明的有益效果是:本发明通过三层复合结构,提高了产品的物理性能;通过加入耐高温压敏胶,提高了产品的耐高温性能;通过加入聚酰亚胺,使得产品具有耐高温,抗拉强度高,耐化学性佳、无残胶,符合RoHS环保无卤等优点;通过加入耐高温示温涂层,使得产品获得了在高温环境下变色的特性,从而起到提醒、警示的作用。
附图说明
图1是本发明一种耐高温示温绝缘胶带一较佳实施例的立体结构示意图;
附图中各部件的标记如下:耐高温压敏胶层1、聚酰亚胺薄膜层2、耐高温示温涂层3。
具体实施方式
下面结合附图对本发明的较佳实施例进行详细阐述,以使本发明的优点和特征能更易于被本领域技术人员理解,从而对本发明的保护范围做出更为清楚明确的界定。
请参阅图1,本发明实施例包括:
一种耐高温示温绝缘胶带,包括:耐高温压敏胶层1、聚酰亚胺薄膜层2和耐高温示温涂层3三部分;所述耐高温压敏胶层1为所述耐高温示温绝缘胶带的最底层;所述聚酰亚胺薄膜层2通过涂布机涂覆与所述耐高温压敏胶层1上表面,涂布机涂覆方式为传递辊式涂布;所述耐高温示温涂层3通过涂布机涂布于所述聚酰亚胺薄膜层上表面,涂布机涂布方式为高压喷涂涂布。
进一步说明,所述耐高温压敏胶层1材料为改性丙烯酸酯压敏胶,普通的丙烯酸酯压敏胶具有初粘力大、耐水性好的有点,但是纯丙烯酸酯压敏胶由于其结构特性从而导致其耐热性能较差,在高温环境下非常容易软化并失去粘性,这和本发明产品所在的高温工作环境相冲突,通过研究发现,在加入环氧树脂和丙烯酰胺为交联剂,并加入一定的二甲苯二异氰酸酯对丙烯酸酯进行改性,能够极大的提高丙烯酸酯压敏胶的耐高温性能,从而符合本发明工作环境的要求。
再进一步说明,所述聚酰亚胺薄膜层2材料为聚双马来酰亚胺。聚酰亚胺是综合性能最佳的有机高分子材料之一,耐高温达 400℃以上,长期使用温度范围-200~300℃,无明显熔点,高绝缘性能,103赫下介电常数4.0,介电损耗仅0.004~0.007,属F至H。聚酰亚胺是指主链上含有酰亚胺环(-CO-NH-CO-)的一类聚合物,其中以含有酞酰亚胺结构的聚合物最为重要。聚酰亚胺作为一种特种工程材料,已广泛应用在航空、航天、微电子、纳米、液晶、分离膜、激光等领域。聚酰亚胺的耐高温性能和绝缘性能的优异特性,是本发明采用其为制作材质的关键因素。同时本发明采用的聚酰亚胺材料为聚双马来酰亚胺材料,因为聚双马来酰亚胺是由顺丁烯二酸酐和芳聚酰亚胺香族二胺缩聚而成的。它与聚酰亚胺相比,性能不差上下,但合成工艺简单,后加工容易,成本低,可以方便地制成各种复合材料制品。使用聚双马来酰亚胺作为材料,在确保耐高温性能和绝缘性能的同时,降低了生产成本,从而提高利润。
再进一步说明,所述耐高温示温涂层材料3为碳酸镍。碳酸镍是一种金属盐,其在高温环境下,会由于化学反应而变色,从而起到示温的作用,同时,碳酸镍材料是一种不可逆示温材料,即当温度恢复原来温度后,颜色不能恢复原状。其变色机理是温度变化后,产生了不可逆的化学反应,如化学组成改变(释放出气 体)、生成新的化合物。因为高温环境下的可逆示温材料目前为止尚未真正发现和推广,因此,在高温环境下,大部分采用金属盐类材料作为示温材料。碳酸镍作为金属盐材料中的一种,其高温反应效率快,情况稳定,相对于其他材料来说,对反应温度的要求较为精确,从而提高了产品示温温度的精确性,并且碳酸镍的价格较之其他示温材料来说较为低廉,能够有效的降低生产成本。
更进一步说明,所述耐高温压敏胶层1厚度为0. 5μm,所述聚酰亚胺薄膜层2厚度为0.6μm,所述耐高温示温涂层3厚度为0.3μm,此厚度为研究所得的最合理厚度,低于该厚度,产品的物理性能就会变差,容易出现断裂等情况的出现,高于该厚度,一是增加了生产成本,二是增加了产品的整体厚度,影响手感及工作中的正常使用。
本发明通过三层复合结构,提高了产品的物理性能;通过加入耐高温压敏胶,提高了产品的耐高温性能;通过加入聚酰亚胺,使得产品具有耐高温,抗拉强度高,耐化学性佳、无残胶,符合RoHS环保无卤等优点;通过加入耐高温示温涂层,使得产品获得了在高温环境下变色的特性,从而起到提醒、警示的作用。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (7)

1.一种耐高温示温绝缘胶带,其特征在于,包括:耐高温压敏胶层、聚酰亚胺薄膜层和耐高温示温涂层三部分;所述耐高温压敏胶层为所述耐高温示温绝缘胶带的最底层;所述聚酰亚胺薄膜层通过涂布机涂覆与所述耐高温压敏胶层上表面,涂布机涂覆方式为传递辊式涂布;所述耐高温示温涂层通过涂布机涂布于所述聚酰亚胺薄膜层上表面,涂布机涂布方式为高压喷涂涂布。
2.根据权利要求1所述的耐高温示温绝缘胶带,其特征在于,所述耐高温压敏胶层材料为改性丙烯酸酯压敏胶。
3.根据权利要求1所述的耐高温示温绝缘胶带,其特征在于,所述聚酰亚胺薄膜层材料为聚双马来酰亚胺。
4.根据权利要求1所述的耐高温示温绝缘胶带,其特征在于,所述耐高温示温涂层材料为碳酸镍。
5.根据权利要求1所述的耐高温示温绝缘胶带,其特征在于,所述耐高温压敏胶层厚度为0. 5μm。
6.根据权利要求1所述的耐高温示温绝缘胶带,其特征在于,所述聚酰亚胺薄膜层厚度为0.6μm。
7.根据权利要求1所述的耐高温示温绝缘胶带,其特征在于,所述耐高温示温涂层厚度为0.3μm。
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Cited By (5)

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CN110682620A (zh) * 2019-10-08 2020-01-14 苏州扬子江新型材料股份有限公司 示温耐高温彩钢板
CN110684483A (zh) * 2019-09-06 2020-01-14 广东弘擎电子材料科技有限公司 一种温变型阻燃压敏胶带及其制备方法
CN113072887A (zh) * 2021-03-26 2021-07-06 江苏伊诺尔新材料科技有限公司 —种耐高温电气绝缘胶带及其生产方法
CN113105834A (zh) * 2021-04-06 2021-07-13 苏州高泰电子技术股份有限公司 一种耐高温锡液胶带
CN114989743A (zh) * 2022-07-15 2022-09-02 上海商寰航空科技有限公司 粘贴型感温变色标识胶带及制备方法

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