CN107326657A - 一种镀银导电芳纶纤维的制备方法 - Google Patents
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- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
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Abstract
本发明公开了一种镀银导电芳纶纤维的制备方法，其特征在于，其特征在于，首先，制备镀银导电芳纶纤维的原料包括，纤维、镀银夜；先将纤维置于丙酮溶液中清洗后，高温烘干，然后置于二甲基亚砜金属化试剂中粗化，经SnCl2和盐酸溶液敏化、PdCl2盐酸溶液活化后进行化学镀银，纤维浸入镀银液中，常温浸泡，最后用去离子水清洗，并真空干燥即可。本发明具有生产工艺简单，制成品强度高，耐高温等优点。
Description
技术领域
本发明涉及纺织技术领域，尤其是涉及一种镀银导电芳纶纤维的制备方法。
背景技术
芳纶纤维是一种高性能的高分子合成材料，具有耐高温，阻燃，化学性稳定等性能，而由其制成的导电芳纶纤维，广泛应用于多个行业，如电子通讯等领域，在现有的扬声器弹波一般是采用圆环状片体的波形振动板，其径向断面呈波浪形，设置在盆架与纸盆之间，用来支撑音圈，起到牵引鼓纸定向振动等作用，其电连接线往往采用棉纱线或锦丝线，缝编织在弹波表面，由于弹波在工作时振动容易产生断裂风险，其安装较为繁琐，出良率不高，另外现在音响设备都追求紧凑超薄，这种材料结构也难以改进；如果采用导电金属纤维就可以很好的解决这一问题，如镀银导电芳纶纤维。
发明内容
本发明的目的就是为了解决现有技术之不足，而提供的一种不仅结构简单，而且导电性好，强度高的镀银导电芳纶纤维的制备方法。
本发明是采用如下技术解决方案来实现上述目的：
一种镀银导电芳纶纤维的制备方法，其特征在于，首先，制备镀银导电芳纶纤维的原料包括，纤维、镀银夜；先将纤维置于丙酮溶液中清洗后，高温烘干，然后置于金属化试剂中粗化，经SnCl2和盐酸溶液敏化、PdCl2盐酸溶液活化后进行化学镀银，纤维浸入镀银液中，常温浸泡，最后用去离子水清洗，并真空干燥即可。
作为进一步说明，所述金属化试剂为氰化钠、二甲基亚砜合成金属化试剂。
所述镀银液分开两部分配置，银液和还原液，银液的组分为硝酸银5-16g/L、氨水30-80mL/L、乙二胺10-25mL/L、氢氧化钾4-10g/L；还原液的组分为葡萄糖0-20g/L、酒石酸钾钠0-10g/L、乙醇45mL/L、聚乙二醇70mL/L。
所述导电纤维丝为高强型合股扭线，单丝密度为12um，直径为0.40mm，耐高温1100摄氏度的导电高分子型纤维。
本发明镀银导电芳纶纤维的制备方法简单，生产成本低，加上银具有很好的导电性和延展性，制得的镀银芳纶纤维导电性优良，是一种强度高，阻燃性好的高性能导电纤维，应用在弹波中可以很好的发挥效果。
具体实施方式
本发明镀银导电芳纶纤维的制备方法，首先制备镀银导电芳纶纤维的原料包括纤维、镀银液，纤维来自市售普通纤维基材；先将纤维置于丙酮溶液中清洗后，85℃高温烘干，然后置于氰化钠、二甲基亚砜金属化试剂中粗化处理，再经SnCl2和盐酸溶液敏化处理、PdCl2盐酸溶液活化处理后进行化学镀银，纤维浸入镀银液中，常温浸泡，最后用去离子水清洗，并真空干燥即可。所述镀银液分开两部分配置，银液和还原液，使用时混合，银液的组分为硝酸银10g/L、氨水50mL/L、乙二胺25mL/L、氢氧化钾8g/L；还原液的组分为葡萄糖10g/L、酒石酸钾钠5g/L、乙醇45mL/L、聚乙二醇70mL/L。制成的导电纤维丝为高强型合股扭线，单丝密度为12um，直径为0.40mm，耐高温1100摄氏度的导电高分子型纤维。
上述实施例中，硝酸盐浓度的增加，纤维增重率先增后减，电阻逐渐减小，在硝酸银浓度为10g/L为最佳值；采用葡萄糖和酒石酸钾钠作为还原剂，镀层致密，表面均匀平整，采用氢氧化钾作为加速剂，当浓度增大，纤维增重率提高，氢氧化钾浓度8g/L为最佳值，纤维表面银镀层致密均匀；经上述配方工艺制备的镀银芳纶纤维其理化特性如下表所示；
表1、镀银导电芳纶纤维的理化特性表
采用化学镀银方法制备的镀银芳纶纤维，具有强度高，耐高温等优点，可以应用在弹波上，发挥高性能导电纤维的优势，导电性好，可以制作出高质量，高指标的弹波产品。
以上所述的仅是本发明的优选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。
Claims (3)
1.一种镀银导电芳纶纤维的制备方法，其特征在于，首先，制备镀银导电芳纶纤维的原料包括，纤维、镀银夜；先将纤维置于丙酮溶液中清洗后，高温烘干，然后置于金属化试剂中粗化，经SnCl2和盐酸溶液敏化、PdCl2盐酸溶液活化后进行化学镀银，纤维浸入镀银液中，常温浸泡，最后用去离子水清洗，并真空干燥即可。
2.根据权利要求1所述的镀银导电芳纶纤维的制备方法，其特征在于，所述镀银液分开两部分配置，银液和还原液，银液的组分为硝酸银5-16g/L、氨水30-80mL/L、乙二胺10-25mL/L、氢氧化钾4-10g/L；还原液的组分为葡萄糖0-20g/L、酒石酸钾钠0-10g/L、乙醇45mL/L、聚乙二醇70mL/L。
3.根据权利要求1所述的镀银导电芳纶纤维的制备方法，其特征在于，所述金属化试剂为氰化钠、二甲基亚砜合成金属化试剂。
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Cited By (2)
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| CN110265640A (zh) * | 2019-06-11 | 2019-09-20 | 上海大学 | 一种制备锂电池电极用碳包覆多孔硅材料的方法 |
| CN113605089A (zh) * | 2021-08-31 | 2021-11-05 | 河北科技大学 | 一种镀银吸波织物的制备方法及其产品 |
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| 《表面处理工艺手册》编审委员会: "《表面处理工艺手册》", 31 January 1991, 上海科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265640A (zh) * | 2019-06-11 | 2019-09-20 | 上海大学 | 一种制备锂电池电极用碳包覆多孔硅材料的方法 |
| CN113605089A (zh) * | 2021-08-31 | 2021-11-05 | 河北科技大学 | 一种镀银吸波织物的制备方法及其产品 |
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