涤纶织物葡萄糖和肼化学镀银的研究

采用还原剂为葡萄糖和肼对涤纶织物化学镀银,借助SEM和XRD对镀层的表面形貌进行分析,并测试化学镀银织物的电磁波屏蔽、耐磨性、刚柔性和透气性.结果表明,葡萄糖作还原剂时镀层表面光滑、晶粒较小,电磁波屏蔽及耐磨性能均优于肼镀银织物;两种不同还原剂化学镀银织物的刚柔性基本不变,透气性有所下降.     

化学镀银织物电磁屏蔽效能及透湿透气性能研究

为研究化学镀银对织物性能的影响,采用葡萄糖作还原剂对涤纶织物进行镀银,借助扫描电镜、网络分析仪、织物透湿仪、织物透气量仪等,对镀银织物的表面镀层形貌、织物的电磁屏蔽效能,以及织物的透湿、透气性能进行测试分析。结果表明:随着增重率的变大,织物的屏蔽效能增加,当增重率达到37%时,电磁屏蔽效能增加不明显,故应根据需要合理选择面料的镀层厚度;研究还发现镀层厚度对织物的透湿、透气性有影响。     

涤纶织物化学镀银着色研究

采用化学染色法对化学镀银涤纶织物进行着色处理,获得了具有红色,黑色,桃红色等色彩的镀银织物,借助SEM分析了镀层的表面形貌,并测试了着色织物的色牢度.结果表明,着色织物的刷洗色牢度和摩擦色牢度基本能够满足使用要求.焙烘温度120℃,时间15min时,着色效果较好.     

涤纶针织物银-镍-铜三层化学镀研究

采用化学镀技术,实现了涤纶针织物表面镀银-镍-铜,借助SEM、EDX和TG对镀层表面形貌、成分以及热性能进行了测试分析,并测试了化学镀织物的电磁波屏蔽效能和拉伸性能.结果表明,涤纶针织物化学镀银-镍-铜后热分解温度有所下降:镀银-镍-铜织物的电磁波屏蔽效能明显好于镀银-镍双层织物和镀镍织物;镀层的致密性和金属成分对电磁波屏蔽效能影响显著;化学镀涤纶针织物的应力-应变曲线同时具有金属和涤纶长丝的拉伸特性.主要受金属镀层厚度的影响.     

硫代硫酸钠对涤纶织物化学镀银的影响

研究硫代硫酸钠对化学镀银镀液稳定性、镀层表面形貌、镀层成分、结晶情况、镀银速率、表面电阻以及电磁屏蔽效能的影响.结果表明:添加硫代硫酸钠能使镀液的稳定性得到明显提高,但若浓度过高,会出现镀层结构疏松的现象;镀层中银的结晶形态是立方面心(fcc)结构,晶粒尺寸随硫代硫酸钠浓度的增加而减小;硫代硫酸钠的加入使镀银速率下降,...     

涤纶织物纳米TiO2颗粒化学复合镀银

采用化学镀技术,实现了不同分散剂分散纳米TiO2颗粒涤纶织物表面化学复合镀银,借助SEM、XRD和TG对镀层表面形貌、结构和织物热性能进行研究,测试织物的电磁波屏蔽、导电、耐磨、透气和光催化性能.结果表明:用PVP&T80作分散剂时,纳米TiO2的引入对镀层结构没有影响,但晶粒尺寸增大;随着纳米TiO2质量浓度的增加,...     

镀银纱线织物和石墨涂层织物电磁屏蔽效能分析

针对电磁辐射污染问题,应用棉/莫代尔纱线(CM)、镀银纱线(SP)、涤纶/棉纱线(PC)和涤纶长丝(PF)4种纱线织造13种织物,并对其中8种织物进行表面石墨涂层处理,应用矢量网络分析仪测试了不同比例镀银纱线织物和不同结构石墨涂层织物的电磁屏蔽效能。试验结果显示,镀银纱线织物的电磁屏蔽效能低于具有均匀银镀层的市售机织物和针织物;镀银纱线织物的表面电阻随着镀银纱线含量的增加而降低,电磁屏蔽效能随着镀银纱线含量的增加而增加。石墨涂层CM/PC织物和石墨涂层CM/PF织物的表面电阻在20~40 kΩ/cm,其最大的电磁屏蔽效能分别为1.2 dB和4.2 dB。     

染苑精粹

<正>化学镀银法制备电磁屏蔽PET织物2017211聚对苯二甲酸乙二醇酯(PET)织物进行化学镀银,制备电磁屏蔽织物。优化了镀银工艺条件,并比较了两种活化剂(硝酸银混合物和氯化钯混合物)的效果。与氯化钯混合物相比,采用硝酸银混合物活化后进行化学镀银的PET织物镀银量更大,镀层更厚,镀银层也更稳定。优化的镀银工艺为:在15℃下镀覆30 min,葡萄糖45 g/L,硝酸银50 g/L。多次洗涤后电镀织物的电磁屏蔽效果和导     

镀银纤维分布均匀性与织物抗菌性的关系

探讨镀银纤维在纱线、织物中的分布均匀性对抗茵性的影响.采用琼脂平皿法分别对镀银纤维、镀银纤维介入织物不同技术路线的纱线及其嵌织织物试样的抗茵性进行了测试与分析,结果表明:镀银纤维具有良好的抗菌溶出性,进行抗菌织物设计时,在满足临界用量要求的前提下,可选择混纺、包芯、交捻、交织等多种技术手段开发抗茵织物,但应注意不同的技术手段对分布均匀性要求的差异.     

封端阳离子水性聚氨酯在有机硅柔软剂中的应用

以葡萄糖为还原剂在涤纶织物上进行化学镀银。采用EDS、SEM分别表征镀层的化学元素成分和表面形貌,对镀银后织物的增厚增重率、断裂强力、断裂伸长率、耐摩擦性和表面方阻进行测试分析,并探讨了硝酸银和葡萄糖质量浓度、pH值、分散剂对涤纶织物增重率和表面方阻的影响。结果表明,采用2.4 g/L NaOH,pH值12.2,10 g/L AgNO3,8 g/L葡萄糖,70 mg/L聚乙二醇,乙醇60 ml/L工艺镀银织物的方阻最小,为0.02 Ω/cm2。     

Production of electromagnetic shielding fabrics by optimization of electroless silver plating conditions for PET fabrics

This study aimed to investigate the optimal electroless silver plating conditions on poly (ethylene terephthalate) (PET) to develop electromagnetic shielding fabrics by comparison with two different activation agents (silver nitrate mixture and palladium chloride mixture). The add-on yield and thickness of plated fabrics were improved when the electroless silver plating was performed after the activation by silver nitrate mixtures compared to the activation by palladium chloride mixtures. The stability of plated surfaces after the activation by silver nitrate mixtures was proved after laundering by surface morphology and electromagnetic wave shielding effectiveness. The electroless silver plating condition was optimized to temperature of 15 °C, plating time of 30 min, dextrose concentration of 45 g/L, and silver nitrate concentrations as a plating material of 50 g/L. The electromagnetic wave shielding effectiveness and electrical conductivity of plated fabrics were maintained even after repeated laundering cycles. Electron probe microanalysis was concluded that the silver was attached on plated PET surfaces, and about 17.8% of silver was observed by inductive coupled plasma spectrometer.     

化学镀涤纶织物的研究现状

概述了用以赋予织物电磁屏蔽性能的化学镀技术的研究现状。详细阐述了织物前处理工艺、织物化学镀镍、铜、银的施镀工艺和镀层性能的研究成果,对化学镀的发展前景进行了展望。     

Textile design application via electroless copper plating

Metallized textile has metallic color with reflective effect and smooth handle. The electroless copper plating on fabric using hypophosphite as a reducing agent is feasible process for design application. This study aims to investigate the appearance of the copper-plated Green-PN fabric produced by electroless plating with different deposition conditions including different nickel sulfate concentrations and pH of plating bath. Various colors were produced after the copper-plated fabrics had been exposed to the copper plating bath at 85°C and pH 8.5 for different time. Design application of the electroless copper plating on Green-PN fabric and Black-CVPN fabric was carried out. The electroless copper plating could change the original appearance of the fabric through the deposition of copper particles on the fabric surface. The final pattern was well-defined using many details such as lines and forms created by the design methods. The study laid the foundation of the electroless copper plating for textile design.     

N,O-羧甲基壳聚糖在导电涤纶织物化学镀中的应用

对壳聚糖引入羧基制备改性N,O-羧甲基壳聚糖(NOCC),因其有良好的水溶性,可采用浸轧法处理在涤纶织物上,利用其在活化过程中吸附贵金属钯引发之后的化学镀,获得致密、均匀的金属镀层,赋予织物导电性和电磁屏蔽效能.采用红外图谱(FT-IR)和1℃核磁共振谱图对NOCC进行表征,并用SEM图观察了经NOCC处理后和化学镀后导电涤纶织物的纤维表面形貌.     

聚酯/聚苯胺复合织物化学镀铜效果的影响因素

利用超声波辅助化学镀方法在聚酯/聚苯胺复合织物表面均匀沉积金属铜.探讨聚苯胺的沉积条件、化学镀工艺中敏化和活化条件以及超声波辅助等条件对复合织物方阻值、增重率及结合性能等方面的影响.通过浸泡法和阳极极化法比较聚酯/聚苯胺、聚酯/铜和聚酯/聚苯胺/铜3种复合织物的耐腐蚀性能.利用扫描电镜对不同织物的表观形貌进行表征,同时...     

导电涤纶非织造布的制备及其性能

为开发智能柔性传感器及具有防护功能的金属化导电纺织材料,采用高温无钯活性镍源和化学镀的方法制备涤纶镀镍非织造布。分析了镀覆温度、镀液pH值、镀覆时间、主盐浓度对涤纶非织造布电阻的影响,并测试了镀镍非织造布的导电性、保暖性和抗电磁辐射性能。得到涤纶非织造布化学镀镍最佳工艺:主盐硫酸镍浓度为0.1 mol/L, 镀覆温度为50 ℃,pH值为9,时间为60 min。结果表明:采用最佳工艺制备的镀镍非织造布的方块电阻下降至0.114 Ω/□,导电性能优异;且镀镍后非织造布热阻提高,克罗值增加,传热系数降低,在100~3 000 MHz范围内屏蔽效能增加,具有较好的保暖性和抗电磁辐射性能;涤纶表面镀层致密平整,镀层主要成分为金属镍。     

Metallized textile design through electroless plating and tie-dyeing technique

The aim of the study is to investigate design effects of the electroless metal plated fabrics in order to meet the requirement of high technical and apparel applications by using tie-dyeing technique. The appearance of nickel plated and nickel/copper multilayer plated fabrics obtained under different conditions and tie-dyeing technique was investigated, respectively. Metallized textile design by nickel and copper was developed using tie-dyeing method. The nickel/copper multilayer plated fabric indicates that the color changfe from red to gray is with respect to an increase of thickness of the nickel deposits. The resisting effects by using tie-dyeing on the metallized fabrics depend entirely on the texture and strength of the tie-dyeing conditions used. The study reveals that metallized textiles design by combining electroless plating and tie-dyeing are promising for decorative and fashion application.     

脂肪酶处理对涤纶织物亲水性能的改善

 本论文研究了脂肪酶处理工艺参数对涤纶亲水性能的影响。利用涤纶面料的毛细效应表征其亲水性能。扫描电镜（SEM）结果表明,脂肪酶对涤纶纤维表面分子进行了降解,涤纶表面变得比较粗糙。水接触角从未处理时的121.5°降到处理后的59°,涤纶面料的亲水性的到显著改善。随着处理浓度和时间的增加,涤纶面料的芯吸高度增加。涤纶面料的芯吸高度随着处理液pH值和处理温度的增加先升高后降低。较佳的处理液pH值和处理温度分别为7和40℃。实验结果表明,脂肪酶作为一种清洁能源对涤纶面料亲水性的改善是可行的。