Electromagnetic interference shielding effectiveness of electroless Cu-plated PET fabrics
Electromagnetic interference shielding effectiveness of electroless Cu-plated PET fabrics
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DOI：
10.1016/s0379-6779(01)00332-0
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发表时间：
2001-09-24
期刊：
影响因子：
4.4
通讯作者：
Oh, KW
中科院分区：
文献类型：
--
作者：
Han, EG;Kim, EA;Oh, KW
为开发高质量的防护服用电磁干扰屏蔽纺织品，对涤纶织物进行化学镀铜。研究了煮练、酸蚀、催化等前处理条件对织物电磁屏蔽效能（EMISE）和物理性能的影响，结果表明：采用0.3%NaOH和1.0%Triton X-100煮练，HCl/HNO 3混合酸蚀，在25 ℃下反应30分钟，然后活化。我们发现KCl是比常用的SnCl 2更好的催化剂活化剂。镀铜织物的发射强度随着KCl浓度的增加而增加，直到PdCl 2：KCl的摩尔比为1：8，然后随着进一步的加入而降低。当活化温度从25 ℃升高到40 ℃时，镀铜织物的EMISE增大，当活化温度超过40 ℃时，其EMISE减小到零左右。镀铜织物的拉伸伸长和悬垂挺度等物理性能均高于未镀铜织物。但拉伸强度略有降低。通过扫描电子显微镜（SEM）观察发现，由于铜膜在涤纶织物上的延展性和脆性，使得镀铜涤纶织物具有特殊的断裂行为。(C)2001 Elsevier Science B. V.保留所有权利。
In order to develop the high quality electromagnetic interference (EMI) shielding textiles for protective clothing, polyester fabrics were electroless copper-plated. Effects of pretreatment conditions such as scouring, etching, and catalyzation on electromagnetic interference shielding effectiveness (EMISE) and physical properties of treated fabrics were investigated.High EMISE of fabrics over the wide range of frequency level were obtained when fabrics were scoured with 0.3% NaOH and 1.0% Triton X-100, and etched with the mixture of HCl/HNO3, at 25 degreesC for 30 min before activation. We found that KCl was the better catalyst activator than commonly used SnCl2. EMISE of copper-plated fabrics increased as the concentration of KCl increased up to 1:8 molar ratio of PdCl2:KCl then decreased with further addition. As the catalyzation temperature increased from 25 to 40 degreesC, the EMISE of copper-plated fabrics increased, whereas their EMISE reduced to about zero when the activation temperature exceeded over 40 degreesC. Physical proper-ties including tensile extension and drape stiffness of copper-plated fabrics are higher than those of the untreated PET. but tensile strength was slightly decreased. By scanning electron microscope (SEM), we found special fracturing behavior of the copper-coated PET fabrics due to the ductility and brittleness of copper film on the PET fabric. (C) 2001 Elsevier Science B.V. All rights reserved.