CN104051079B - 一种含有机械剥离石墨烯的导电电线电缆的制备方法 - Google Patents

一种含有机械剥离石墨烯的导电电线电缆的制备方法 Download PDF

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CN104051079B
CN104051079B CN201410297899.8A CN201410297899A CN104051079B CN 104051079 B CN104051079 B CN 104051079B CN 201410297899 A CN201410297899 A CN 201410297899A CN 104051079 B CN104051079 B CN 104051079B
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CN104051079A (zh
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郭栋
徐旭
黄超
李静静
凌敏
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Guilin University of Technology
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Abstract

本发明公开一种含有机械剥离石墨烯的导电电线电缆的制备方法。将0.007~0.075毫米厚度、单面附有0.015~0.04毫米厚度导电胶的铜箔胶带，覆盖于高定向热解石墨片表面，轻轻压实，慢慢撕下，铜箔胶带上粘上一层石墨薄片，用另外一条同样长度厚度的铜箔胶带，与粘有石墨薄片的铜箔胶带完好对粘，对粘完撕开，另外再取两条同样长度厚度的铜箔胶带与前两条对粘撕开，重复上述操作3~10次，制备得覆盖有石墨烯的铜箔胶带，然后将覆盖有石墨烯的铜箔胶带上下重叠10~30层，真空状态下，高压高温锻压成铜片后，切割成铜线，将铜线表面包裹PVC塑料线套，即制得含有机械剥离石墨烯的导电电线电缆。本发明方法工艺简单，制得的铜线电阻率大大降低，导电性能大大提高，截流量大大提高。

Description

一种含有机械剥离石墨烯的导电电线电缆的制备方法
技术领域
本发明属于导电电线电缆技术领域，特别涉及一种含有机械剥离石墨烯的导电电线电缆的制备方法。
背景技术
石墨烯具有高强度、优异的生物相容性、高导热、高导电、耐热耐化学稳定性等近年来倍受材料界的关注。石墨烯目前是世上最薄却也是最坚硬的纳米材料 ，它几乎是完全透明的，只吸收2.3%的光；导热系数高达5300 W/m·K，高于碳纳米管和金刚石，常温下其电子迁移率超过15000 cm2/V·s，又比纳米碳管或硅晶体高，而电阻率只约10-6 Ω·cm，比铜或银更低，为目前世上电阻率最小的材料。因为它的电阻率极低，电子迁移的速度极快，因此被期待可用来发展出更薄、导电速度更快的新一代电子元件或晶体管。由于石墨烯实质上是一种透明、良好的导体，也适合用来制造透明触控屏幕、光板、甚至是太阳能电池。
采用机械剥离法石墨烯制备高导电电线电缆的方法未见文献报道。
发明内容
本发明的目的是提供一种含有机械剥离石墨烯的导电电线电缆的制备方法。
本发明的思路：采用一定厚度的单面双导电铜箔胶带机械剥离高定向热解石墨片，通过剥离一定的次数，即完成机械剥离法制备石墨烯，控制铜箔胶带表面石墨烯的层数，最后将覆盖有石墨烯的铜箔胶带卷压成铜线，表面套上PVC塑料皮后制备成具有优异导电性能的电线电缆。
具体步骤为：
将0.007~0.075毫米厚度、单面附有0.015~0.04毫米厚度导电胶的铜箔胶带，覆盖于高定向热解石墨片表面，轻轻压实，慢慢撕下，铜箔胶带上粘上一层石墨薄片，用另外一条同样长度厚度的铜箔胶带，与粘有石墨薄片的铜箔胶带完好对粘，对粘完撕开，另外再取两条同样长度厚度的铜箔胶带与前两条对粘撕开，重复上述操作3~10次，制备得覆盖有石墨烯的铜箔胶带，然后将覆盖有石墨烯的铜箔胶带上下重叠10~30层，真空状态下，高压高温锻压成铜片后，切割成铜线，将铜线表面包裹PVC塑料线套，即制得含有机械剥离石墨烯的导电电线电缆。
本发明方法具有以下优点：
(1)本发明方法的工艺简单，易于大规模推广应用。
(2)本发明方法所制得的铜线对比同质量同截面积的铜线电阻率大大降低，导电性能大大提高，截流量大大提高。
具体实施方式
实施例 1 ：
将0.05毫米厚度、单面附有0.02毫米厚度导电胶的铜箔胶带，覆盖于高定向热解石墨片表面，轻轻压实，慢慢撕下，铜箔胶带上粘上一层石墨薄片，用另外一条同样长度厚度的铜箔胶带，与粘有石墨薄片的铜箔胶带完好对粘，对粘完撕开，另外再取两条同样长度厚度的铜箔胶带与前两条对粘撕开，重复上述操作6次，制备得覆盖有石墨烯的铜箔胶带，然后将覆盖有石墨烯的铜箔胶带上下重叠14层，真空状态下，高压高温锻压成铜片后，切割成铜线，将铜线表面包裹PVC塑料线套，即制得含有机械剥离石墨烯的导电电线电缆。
将本实施例制得的导电电线电缆对比同质量同截面积的铜线电缆，每米电阻率下降30%，导电性能提高30%，截流量提高50%。
实施例 2 ：
将0.06毫米厚度、单面附有0.03毫米厚度导电胶的铜箔胶带，覆盖于高定向热解石墨片表面，轻轻压实，慢慢撕下，铜箔胶带上粘上一层石墨薄片，用另外一条同样长度厚度的铜箔胶带，与粘有石墨薄片的铜箔胶带完好对粘，对粘完撕开，另外再取两条同样长度厚度的铜箔胶带与前两条对粘撕开，重复上述操作7次，制备得覆盖有石墨烯的铜箔胶带，然后将覆盖有石墨烯的铜箔胶带上下重叠20层，真空状态下，高压高温锻压成铜片后，切割成铜线，将铜线表面包裹PVC塑料线套，即制得含有机械剥离石墨烯的导电电线电缆。
将本实施例制得的导电电线电缆对比同质量同截面积的铜线电缆，每米电阻率下降36%，导电性能提高40%，截流量提高60%。

Claims (1)

1.一种含有机械剥离石墨烯的导电电线电缆的制备方法，其特征在于具体步骤为：
将0.007~0.075毫米厚度、单面附有0.015~0.04毫米厚度导电胶的铜箔胶带，覆盖于高定向热解石墨片表面，轻轻压实，慢慢撕下，铜箔胶带上粘上一层石墨薄片，用另外一条同样长度厚度的铜箔胶带，与粘有石墨薄片的铜箔胶带完好对粘，对粘完撕开，另外再取两条同样长度厚度的铜箔胶带与前两条对粘撕开，接着再取四条同样长度厚度的铜箔胶带与前四条对粘撕开，以此类推，重复上述对粘撕开操作2~9次，制备得覆盖有石墨烯的铜箔胶带，然后将覆盖有石墨烯的铜箔胶带上下重叠10~30层，真空状态下，高压高温锻压成铜片后，切割成铜线，将铜线表面包裹PVC塑料线套，即制得含有机械剥离石墨烯的导电电线电缆。
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CN103123830A (zh) * 2013-03-14 2013-05-29 南京科孚纳米技术有限公司 一种制备石墨烯电线电缆的方法

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