CN102250415B - 可导电、可屏蔽电磁波的塑料基复合材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种可导电、可屏蔽电磁波的塑料基复合材料,其是由以下质量份的原料组成:40-80份的塑料基体、5-15份的表面改性的高效导电剂、10-40份的偏铁酸亚铁、5-10份的相容剂、0.5-1份的抗氧剂。本发明的产品,具有良好的导电性能、力学性能,可以较大程度的屏蔽电磁波,可以广泛用于电子消费品、远程监控/通讯、军事、野外/室内供电领域。
Description
技术领域
本发明涉及一种可导电、可屏蔽电磁波的塑料基复合材料及其制备方法。
背景技术
随着电子工业的发展,各种家电、办公电器、仪器设备等电子产品得到广泛的普及和应用,给人们带来便利的同时也释放出大量的电磁辐射,危害着人们的健康。
为此,人们不断寻找具有较好电磁屏蔽性能的复合材料,以塑料为基体的具有导电与电磁屏蔽功能的复合材料由于具有较小的密度,较低的成本逐渐受到社会的关注,人们寻求各种方法对塑料进行改性,如向塑料基体中添加导电金属粉末、导电云母粉等等来获得相应功能的复合材料,然而,由于导电粒子与塑料基体的相容性、导电粒子的分散性、以及加工条件等等问题,最后得到的复合材料的屏蔽性能、力学性能等往往不佳。
发明内容
本发明的目的是提供一种可导电、可屏蔽电磁波的塑料基复合材料。
本发明所采取的技术方案是:
一种可导电、可屏蔽电磁波的塑料基复合材料,其是由以下质量份的原料组成:40-80份的塑料基体、5-15份的表面改性的高效导电剂、10-40份的偏铁酸亚铁、5-10份的相容剂、0.5-1份的抗氧剂。
所述的塑料基体为BOPP、PET、PBT、PP中的一种。
所述的相容剂为PP-g-MAH。
所述的抗氧剂为1010、1135、168中的至少一种。
一种可导电、可屏蔽电磁波的塑料基复合材料的制备方法,包括以下步骤:
1)将塑料基体、相容剂、偏铁酸亚铁混合均匀;
2)将步骤1)所得到的物料与表面改性的高效导电剂、抗氧剂混合均匀;
3)将步骤2)得到的物料在挤出机中挤出。
本发明的有益效果是:本发明的产品,具有良好的导电性能、力学性能,可以较大程度的屏蔽电磁波,可以广泛用于电子消费品、远程监控/通讯、军事、野外/室内供电领域。
具体实施方式
一种可导电、可屏蔽电磁波的塑料基复合材料的制备方法,包括以下步骤:
1)将塑料基体、相容剂、偏铁酸亚铁置于混合机中混合2-3分钟;
2)将步骤1)所得到的物料与表面改性的高效导电剂、抗氧剂置于混合机中混合2-3分钟;
3)将步骤2)得到的物料在同向双螺杆挤出机中挤出,挤出机的螺杆长径比为1:30-40。
用下面实施例中的配方进行复合材料制备时,实施例1-6中,挤出机的温度为180-200℃,实施例7中,挤出机的温度为230-245℃,实施例8中,挤出机的温度为270-285℃。
PP-g-MAH为自制(通过原位熔融接枝法制备,制备技术为本领域的公知技术),最后测得MAH的接枝率为1.8%。
下面结合具体实施例对本发明的配方做进一步的说明:
实施例1:
可导电、可屏蔽电磁波的塑料基复合材料的配方组成如下表1:
表1:可导电、可屏蔽电磁波的塑料基复合材料的配方组成
原料 | 质量份 |
PP | 40 |
PP-g-MAH | 5 |
偏铁酸亚铁 | 40 |
表面改性的高效导电剂 | 15 |
抗氧剂1010 | 0.5 |
实施例2:
可导电、可屏蔽电磁波的塑料基复合材料的配方组成如下表2:
表2:可导电、可屏蔽电磁波的塑料基复合材料的配方组成
原料 | 质量份 |
PP | 45 |
PP-g-MAH | 5 |
偏铁酸亚铁 | 40 |
表面改性的高效导电剂 | 15 |
抗氧剂168 | 0.5 |
实施例3:
可导电、可屏蔽电磁波的塑料基复合材料的配方组成如下表3:
表3:可导电、可屏蔽电磁波的塑料基复合材料的配方组成
原料 | 质量份 |
PP | 50 |
PP-g-MAH | 5 |
偏铁酸亚铁 | 40 |
表面改性的高效导电剂 | 5 |
抗氧剂1010 | 0.5 |
实施例4:
可导电、可屏蔽电磁波的塑料基复合材料的配方组成如下表4:
表4:可导电、可屏蔽电磁波的塑料基复合材料的配方组成
原料 | 质量份 |
PP | 60 |
PP-g-MAH | 5 |
偏铁酸亚铁 | 30 |
表面改性的高效导电剂 | 5 |
抗氧剂168 | 0.5 |
实施例5:
可导电、可屏蔽电磁波的塑料基复合材料的配方组成如下表5:
表5:可导电、可屏蔽电磁波的塑料基复合材料的配方组成
原料 | 质量份 |
PP | 60 |
PP-g-MAH | 5 |
偏铁酸亚铁 | 20 |
表面改性的高效导电剂 | 15 |
抗氧剂168 | 0.5 |
实施例6:
可导电、可屏蔽电磁波的塑料基复合材料的配方组成如下表6:
表6:可导电、可屏蔽电磁波的塑料基复合材料的配方组成
原料 | 质量份 |
BOPP | 45 |
PP-g-MAH | 6 |
偏铁酸亚铁 | 10 |
表面改性的高效导电剂 | 1 |
抗氧剂168 | 0.6 |
实施例7:
可导电、可屏蔽电磁波的塑料基复合材料的配方组成如下表7:
表7:可导电、可屏蔽电磁波的塑料基复合材料的配方组成
原料 | 质量份 |
PBT | 80 |
PP-g-MAH | 10 |
偏铁酸亚铁 | 30 |
表面改性的高效导电剂 | 12 |
抗氧剂1135 | 1 |
实施例8:
可导电、可屏蔽电磁波的塑料基复合材料的配方组成如下表8:
表8:可导电、可屏蔽电磁波的塑料基复合材料的配方组成
原料 | 质量份 |
PET | 75 |
PP-g-MAH | 7 |
偏铁酸亚铁 | 27 |
表面改性的高效导电剂 | 8 |
抗氧剂1135 | 0.8 |
由实施例1-5制备的复合材料的性能如下表9:
表9:本发明制备的可导电、可屏蔽电磁波的塑料基复合材料的性能
性能 | 单位 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 |
熔融指数 | g/10min | 15 | 17 | 20 | 22 | 20 |
拉伸强度 | Mpa | 22 | 20 | 20 | 20 | 22 |
弯曲模量 | Mpa | 2360 | 2170 | 2010 | 1900 | 2100 |
简支梁缺口冲击 | KJ/m2 | 6.1 | 7.3 | 7.9 | 8.5 | 8.2 |
表面电阻 | Ω | <10 | <10 | <10 | <10 | <10 |
电磁屏蔽效率 | dB | >60 | >60 | >60 | >60 | >60 |
本发明中,表面改性的高效导电剂是通过以下方法制得的:将石墨烯(型号:GS-1)与占石墨烯质量1%的钛酸酯偶联剂置于高速混合机中混合2-3分钟即可。
从表9可以看出,本发明的产品,具有良好的导电性能、力学性能,可以很好的屏蔽电磁波,同时,该复合材料具有耐用、比重轻、可成型复杂结构的产品等特点,可以广泛用于电子消费品、远程监控/通讯、军事、野外/室内供电领域。完全符合国家建设资源节约型、环境友好型社会的战略部署。
Claims (2)
1.一种可导电、可屏蔽电磁波的塑料基复合材料,其特征在于:其是由以下质量份的原料组成:40-80份的塑料基体、5-15份的表面改性的高效导电剂、10-40份的偏铁酸亚铁、5-10份的相容剂、0.5-1份的抗氧剂,其中,所述的表面改性的高效导电剂是通过以下方法制得的:将型号为GS-1的石墨烯与占石墨烯质量1%的钛酸酯偶联剂置于高速混合机中混合2-3分钟即可;所述的塑料基体为BOPP、PET、PBT、PP中的一种;所述的相容剂为PP-g-MAH;所述的抗氧剂为1010、1135、168中的至少一种。
2.权利要求1所述的一种可导电、可屏蔽电磁波的塑料基复合材料的制备方法,其特征在于:包括以下步骤:
1)将塑料基体、相容剂、偏铁酸亚铁混合均匀;
2)将步骤1)所得到的物料与表面改性的高效导电剂、抗氧剂混合均匀;
3)将步骤2)得到的物料在挤出机中挤出。
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CN2011101370553A CN102250415B (zh) | 2011-05-25 | 2011-05-25 | 可导电、可屏蔽电磁波的塑料基复合材料及其制备方法 |
PCT/CN2011/076918 WO2012159317A1 (zh) | 2011-05-25 | 2011-07-06 | 可导电、可屏蔽电磁波的塑料基复合材料及其制备方法 |
US13/990,947 US20140061552A1 (en) | 2011-05-25 | 2011-07-06 | Plastic-based composite material capable of conducting electricity and shielding electromagnetic wave and preparation method thereof |
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CN104530557A (zh) * | 2014-11-26 | 2015-04-22 | 苏州新区佳合塑胶有限公司 | 一种导电pp材料及其制备方法 |
CN104599776A (zh) * | 2014-12-31 | 2015-05-06 | 东莞市高能磁电技术有限公司 | 一种使用聚对苯二甲酸丁二醇酯复合材料的无卤阻燃绝缘电力电缆 |
CN109354881A (zh) * | 2018-10-17 | 2019-02-19 | 合肥月煌新型装饰材料有限公司 | 一种导电硅橡胶及其制备工艺 |
CN109666299B (zh) * | 2018-12-17 | 2021-09-03 | 湖北航天化学技术研究所 | 一种空间级抗静电密封材料及其制备方法与应用 |
CN109988411B (zh) * | 2019-03-13 | 2021-07-16 | 台州博尔特塑胶电子有限公司 | 阻燃抑烟热塑性聚氨酯抗静电复合材料及其制备方法 |
CA3142644A1 (en) * | 2019-06-05 | 2020-12-10 | Basf Se | Electromagnetic wave transmission reducing material |
CN111087824A (zh) * | 2020-01-07 | 2020-05-01 | 中国电子科技集团公司第三十三研究所 | 一种耐环境型电磁防护复合导电橡胶及其制备方法 |
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CN101717543A (zh) * | 2009-12-18 | 2010-06-02 | 项素云 | 含沥青基碳纤维导电塑料的制备 |
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CN101717543A (zh) * | 2009-12-18 | 2010-06-02 | 项素云 | 含沥青基碳纤维导电塑料的制备 |
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Title |
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石墨烯的制备和改性及其与聚合物复合的研究进展;谢普等;《材料导报》;20101130;第24卷;163-165 * |
谢普等.石墨烯的制备和改性及其与聚合物复合的研究进展.《材料导报》.2010,第24卷163-165. |
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