CN108049172A - 一种抗静电纺织材料的制备方法 - Google Patents
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Abstract
本发明公开了一种抗静电纺织材料的制备方法,属于纺织材料制备技术领域。本发明以蒽醌‑2‑磺酸钠和吡咯配制导电体系混合液,以九水硝酸铁和5‑磺基水杨酸配制氧化引发体系溶液,PET水刺无纺布在导电体系混合液与氧化引体系溶液的复配液中,得到聚吡咯/PET水刺无纺布即改性无纺布,部分吡咯直接以PET水刺无纺布作为反应基质,在PET水刺无纺布表面聚合,提高纺织材料的抗静电性能;在氧化引发体系溶液中,磺基水杨酸和硝酸铁混合配制成二者的水溶液,磺基水杨酸与铁离子发生螯合反应,降低了溶解中三价铁离子的浓度,从而使得吡咯和铁离子的反应速率降低,这样就达到了对吡咯的整个氧化还原反应可控,氧化还原反应平稳进行,从而提高纺织材料的抗静电性能。
Description
技术领域
本发明公开了一种抗静电纺织材料的制备方法,属于纺织材料制备技术领域。
背景技术
纺织材料是指纤维及纤维制品,具体表现为纤维、纱线、织物及其复合物。纤维及纤维制品表明了纺织材料既是一种原料,用于纺织加工的对象,又是一种产品,是通过纺织加工而成的纤维集合体。
现代纺织中,纺织新材料的研发,特别是纳米纤维的开发和使用,突破了传统意义上的纺织材料概念。纺织材料成为软物质材料的重要组成部分,以“形”及其复合形式为研究主体是纺织材料的基本特征之一。
传统的纺织材料主要是指纤维,纤维是纺织材料的基本单元。纤维的来源、组成、制备、形态、性能极其丰富与复杂。简单来说,纤维分为天然纤维和化学纤维两大类。根据纤维的物质来源属性将天然纤维分为植物类纤维、动物类纤维和矿物类纤维。按原料、加工方法和组成成分的不同,又可分为再生纤维、合成纤维和无机纤维三类。目前化学纤维因其优异的使用性能占据了市场的主导。
涤纶,又叫聚脂纤维,针织涤纶面料按其质量优劣分为一等品、二等品、三等品和等外品。优点在于弹性好而光滑;抗皱性和保温性好;强度高、易洗快干;耐热性好;耐光性稳定;耐磨性强;化学性能稳定;缺点是易产生静电。
随着人们生活水平的不断提高,对于纺织面料的要求也越来越高,因此发明一种抗静电的涤纶纺织材料对纺织材料制备技术领域具有积极意义。
发明内容
本发明主要解决的技术问题,针对目前涤纶易产生静电的缺陷,提供了一种抗静电纺织材料的制备方法。
为了解决上述技术问题,本发明所采用的技术方案是:
一种抗静电纺织材料的制备方法,其特征在于具体制备步骤为:
(1)向装有150~180mL去离子水的烧杯中加入30~40g蒽醌-2-磺酸钠,搅拌至溶解,得到浅黄色溶液,待烧杯冷却至室温后向烧杯中加入8~10mL吡咯,搅拌分散,得到导电体系混合液,将70~80g九水硝酸铁与60~70g5-磺基水杨酸依次加入200~300mL去离子水中,搅拌混合,静置反应,得到氧化引发体系溶液;
(2)裁剪得到PET水刺无纺布,在室温下将PET水刺无纺布完全浸渍在160~170mL的导电体系混合液中,浸渍后,将60~70mL氧化引发体系溶液用滴液漏斗滴加到导电体系混合液中,边滴加边搅拌,滴加完成后,继续浸渍PET水刺无纺布,得到聚吡咯/PET水刺无纺布即改性无纺布;
(3)将改性无纺布用清水冲洗后,在常温下平铺于表面皿上,自然晾干,得到晾干的改性无纺布,将20~25gPVA-co-PE纳米纤维母粒和70~80份醋酸纤维素丁酯母粒放在真空干燥箱中,加热升温,干燥,将干燥后的PVA-co-PE纳米纤维母粒与醋酸纤维素丁酯母粒混合均匀得到纺丝原料;
(4)将纺丝原料置于双螺杆挤出机中,经双螺杆挤出机挤出,得到复合纤维;将复合纤维缠绕在不锈钢支架上,不锈钢支架置于装有丙酮溶液的索氏萃取器中,将索氏萃取器放入恒温水浴中,保温后,得到PVA-co-PE 纳米纤维,将PVA-co-PE 纳米纤维在室温下自然晾干;
(5)将晾干后的20~30g的PVA-co-PE 纳米纤维置于装有70~80mL异丙醇水溶液的烧杯中,向烧杯加入2~3g聚乙烯醇,搅拌乳化分散,得到PVA-co-PE 纳米纤维悬浮液,将改性无纺布放入PVA-co-PE 纳米纤维悬浮液中浸泡后取出,自然晾干得到抗静电纺织材料。
步骤(1)所述的去离子水的温度为80~90℃,搅拌分散时间为20~25min,搅拌混合时间为10~15min,静置反应时间为35~40min。
步骤(2)所述的PET水刺无纺布的尺寸为8cm×6cm,浸渍时间为30~40min,滴液漏斗的滴加速率为2~3mL/min,继续浸渍时间为4~6h。
步骤(3)所述的改性无纺布用清水冲洗次数为3~4次,自然晾干时间为6~7h,加热升温后温度为100~120℃,干燥时间为12~15h。
步骤(4)所述的控制机头温度为200~220℃、双螺杆转速为100r/min、喂料速度为12g/min、后期牵伸倍数为25,复合纤维的直径为0.8~1.0mm,恒温水浴温度为80~85℃,保温时间为20~22h,自然晾干时间为8~10h。
步骤(5)所述的异丙醇水溶液的质量分数为75%,搅拌乳化分散时间为3~5min,浸泡时间为5~10min,自然晾干时间为7~8h。
本发明的有益效果是:
(1)本发明以蒽醌-2-磺酸钠和吡咯配制导电体系混合液,以九水硝酸铁和5-磺基水杨酸配制氧化引发体系溶液,PET水刺无纺布在导电体系混合液与氧化引体系溶液的复配液中,引发原位聚合,得到聚吡咯/PET水刺无纺布即改性无纺布,PVA-co-PE纳米纤维母粒与醋酸纤维素丁酯母粒共混熔融纺丝,得到复合纤维,复合纤维在丙酮中溶解醋酸纤维素丁酯,得到PVA-co-PE纳米纤维,改性无纺布经PVA-co-PE纳米纤维悬浮液浸泡、晾干得到抗静电纺织材料,吡咯在导电体系混合液与氧化引发体系溶液中引发阳离子自由基聚合,在水刺PET 无纺布表面和混合溶液中发生反应形成聚吡咯,浸渍过程中,吡咯和水刺PET 无纺布的原位聚合在混合溶液中继续进行,部分吡咯直接以 PET 水刺无纺布作为反应基质,在PET 水刺无纺布表面聚合,在无纺布表面形成一层聚吡咯薄膜,聚吡咯能以PET的空穴作为导电单位进行导电,提高纺织材料的抗静电性能;
(2)本发明在氧化引发体系溶液中,磺基水杨酸和硝酸铁混合配制成二者的水溶液,磺基水杨酸与铁离子发生螯合反应,降低了溶解中三价铁离子的浓度,从而使得吡咯和铁离子的反应速率降低,随着反应的进行,溶液中铁离子的浓度降低,磺基水杨酸和铁离子的螯合反应平衡被打破,磺基水杨酸缓慢释放铁离子。这样就达到了对吡咯的整个氧化还原反应可控,促使氧化还原反应平稳进行,使得聚吡咯在水刺PET 无纺布和 PVA-co-PE 纳米纤维的复合材料表面沉积均匀分布,导电空穴分布更均匀,空穴移动速率更快,改性无纺布浸泡PVA-co-PE 纳米纤维悬浮液后,改性无纺布表面涂覆一层PVA-co-PE 纳米纤维导致复合材料的比表面积大,单位面积允许吸附容纳的聚吡咯的质量更多,转移空穴的效率更高,从而提高纺织材料的抗静电性能。
具体实施方式
向装有150~180mL温度为80~90℃去离子水的烧杯中加入30~40g蒽醌-2-磺酸钠,搅拌至溶解,得到浅黄色溶液,待烧杯冷却至室温后向烧杯中加入8~10mL吡咯,搅拌分散20~25min,得到导电体系混合液,将70~80g九水硝酸铁与60~70g5-磺基水杨酸依次加入200~300mL去离子水中,搅拌混合10~15min,静置反应35~40min,得到氧化引发体系溶液;裁剪尺寸为8cm×6cm的PET水刺无纺布,在室温下将PET水刺无纺布完全浸渍在160~170mL的导电体系混合液中,浸渍30~40min后,将60~70mL氧化引发体系溶液用滴液漏斗以2~3mL/min的滴加速率滴加到导电体系混合液中,边滴加边搅拌,滴加完成后,继续浸渍PET水刺无纺布4~6h,得到聚吡咯/PET水刺无纺布即改性无纺布;将改性无纺布用清水冲洗3~4次后,在常温下平铺于表面皿上,自然晾干6~7h,得到晾干的改性无纺布,将20~25gPVA-co-PE纳米纤维母粒和70~80份醋酸纤维素丁酯母粒放在真空干燥箱中,加热升温至100~120℃,干燥12~15h,将干燥后的PVA-co-PE纳米纤维母粒与醋酸纤维素丁酯母粒混合均匀得到纺丝原料;将纺丝原料置于双螺杆挤出机中,控制机头温度为200~220℃,双螺杆转速为100r/min、喂料速度为12g/min、后期牵伸倍数为25,经双螺杆挤出机挤出,得到直径为0.8~1.0mm的复合纤维;将复合纤维缠绕在不锈钢支架上,不锈钢支架置于装有丙酮溶液的索氏萃取器中,将索氏萃取器放入80~85℃的恒温水浴中,保温20~22h后,得到PVA-co-PE 纳米纤维,将PVA-co-PE 纳米纤维在室温下自然晾干8~10h;将晾干后的20~30g的PVA-co-PE 纳米纤维置于装有70~80mL质量分数为75%异丙醇水溶液的烧杯中,向烧杯加入2~3g聚乙烯醇,搅拌乳化分散3~5min,得到PVA-co-PE 纳米纤维悬浮液,将改性无纺布放入PVA-co-PE 纳米纤维悬浮液中浸泡5~10min后取出,自然晾干7~8h得到抗静电纺织材料。
实例1
向装有150mL温度为80℃去离子水的烧杯中加入30g蒽醌-2-磺酸钠,搅拌至溶解,得到浅黄色溶液,待烧杯冷却至室温后向烧杯中加入8mL吡咯,搅拌分散20min,得到导电体系混合液,将70g九水硝酸铁与60g5-磺基水杨酸依次加入200mL去离子水中,搅拌混合10min,静置反应35min,得到氧化引发体系溶液;裁剪尺寸为8cm×6cm的PET水刺无纺布,在室温下将PET水刺无纺布完全浸渍在160mL的导电体系混合液中,浸渍30min后,将60mL氧化引发体系溶液用滴液漏斗以2mL/min的滴加速率滴加到导电体系混合液中,边滴加边搅拌,滴加完成后,继续浸渍PET水刺无纺布4h,得到聚吡咯/PET水刺无纺布即改性无纺布;将改性无纺布用清水冲洗3次后,在常温下平铺于表面皿上,自然晾干6,得到晾干的改性无纺布,将20gPVA-co-PE纳米纤维母粒和70份醋酸纤维素丁酯母粒放在真空干燥箱中,加热升温至100℃,干燥12h,将干燥后的PVA-co-PE纳米纤维母粒与醋酸纤维素丁酯母粒混合均匀得到纺丝原料;将纺丝原料置于双螺杆挤出机中,控制机头温度为200℃,双螺杆转速为100r/min、喂料速度为12g/min、后期牵伸倍数为25,经双螺杆挤出机挤出,得到直径为0.8mm的复合纤维;将复合纤维缠绕在不锈钢支架上,不锈钢支架置于装有丙酮溶液的索氏萃取器中,将索氏萃取器放入80℃的恒温水浴中,保温20h后,得到PVA-co-PE 纳米纤维,将PVA-co-PE纳米纤维在室温下自然晾干8h;将晾干后的20g的PVA-co-PE 纳米纤维置于装有70mL质量分数为75%异丙醇水溶液的烧杯中,向烧杯加入2g聚乙烯醇,搅拌乳化分散3min,得到PVA-co-PE 纳米纤维悬浮液,将改性无纺布放入PVA-co-PE 纳米纤维悬浮液中浸泡5min后取出,自然晾干7h得到抗静电纺织材料。
实例2
向装有170mL温度为85℃去离子水的烧杯中加入35g蒽醌-2-磺酸钠,搅拌至溶解,得到浅黄色溶液,待烧杯冷却至室温后向烧杯中加入9mL吡咯,搅拌分散22min,得到导电体系混合液,将75g九水硝酸铁与65g5-磺基水杨酸依次加入250mL去离子水中,搅拌混合12min,静置反应37min,得到氧化引发体系溶液;裁剪尺寸为8cm×6cm的PET水刺无纺布,在室温下将PET水刺无纺布完全浸渍在165mL的导电体系混合液中,浸渍35min后,将65mL氧化引发体系溶液用滴液漏斗以2mL/min的滴加速率滴加到导电体系混合液中,边滴加边搅拌,滴加完成后,继续浸渍PET水刺无纺布5h,得到聚吡咯/PET水刺无纺布即改性无纺布;将改性无纺布用清水冲洗3次后,在常温下平铺于表面皿上,自然晾干6.5h,得到晾干的改性无纺布,将22gPVA-co-PE纳米纤维母粒和75份醋酸纤维素丁酯母粒放在真空干燥箱中,加热升温至110℃,干燥14h,将干燥后的PVA-co-PE纳米纤维母粒与醋酸纤维素丁酯母粒混合均匀得到纺丝原料;将纺丝原料置于双螺杆挤出机中,控制机头温度为210℃,双螺杆转速为100r/min、喂料速度为12g/min、后期牵伸倍数为25,经双螺杆挤出机挤出,得到直径为0.9mm的复合纤维;将复合纤维缠绕在不锈钢支架上,不锈钢支架置于装有丙酮溶液的索氏萃取器中,将索氏萃取器放入82℃的恒温水浴中,保温21h后,得到PVA-co-PE 纳米纤维,将PVA-co-PE纳米纤维在室温下自然晾干9h;将晾干后的25g的PVA-co-PE 纳米纤维置于装有75mL质量分数为75%异丙醇水溶液的烧杯中,向烧杯加入2g聚乙烯醇,搅拌乳化分散4min,得到PVA-co-PE 纳米纤维悬浮液,将改性无纺布放入PVA-co-PE 纳米纤维悬浮液中浸泡7min后取出,自然晾干7.5h得到抗静电纺织材料。
实例3
向装有180mL温度为90℃去离子水的烧杯中加入40g蒽醌-2-磺酸钠,搅拌至溶解,得到浅黄色溶液,待烧杯冷却至室温后向烧杯中加入10mL吡咯,搅拌分散25min,得到导电体系混合液,将80g九水硝酸铁与70g5-磺基水杨酸依次加入300mL去离子水中,搅拌混合15min,静置反应40min,得到氧化引发体系溶液;裁剪尺寸为8cm×6cm的PET水刺无纺布,在室温下将PET水刺无纺布完全浸渍在170mL的导电体系混合液中,浸渍40min后,将70mL氧化引发体系溶液用滴液漏斗以3mL/min的滴加速率滴加到导电体系混合液中,边滴加边搅拌,滴加完成后,继续浸渍PET水刺无纺布6h,得到聚吡咯/PET水刺无纺布即改性无纺布;将改性无纺布用清水冲洗4次后,在常温下平铺于表面皿上,自然晾干7h,得到晾干的改性无纺布,将25gPVA-co-PE纳米纤维母粒和80份醋酸纤维素丁酯母粒放在真空干燥箱中,加热升温至120℃,干燥15h,将干燥后的PVA-co-PE纳米纤维母粒与醋酸纤维素丁酯母粒混合均匀得到纺丝原料;将纺丝原料置于双螺杆挤出机中,控制机头温度为220℃,双螺杆转速为100r/min、喂料速度为12g/min、后期牵伸倍数为25,经双螺杆挤出机挤出,得到直径为1.0mm的复合纤维;将复合纤维缠绕在不锈钢支架上,不锈钢支架置于装有丙酮溶液的索氏萃取器中,将索氏萃取器放入85℃的恒温水浴中,保温22h后,得到PVA-co-PE 纳米纤维,将PVA-co-PE纳米纤维在室温下自然晾干10h;将晾干后的30g的PVA-co-PE 纳米纤维置于装有80mL质量分数为75%异丙醇水溶液的烧杯中,向烧杯加入3g聚乙烯醇,搅拌乳化分散5min,得到PVA-co-PE 纳米纤维悬浮液,将改性无纺布放入PVA-co-PE 纳米纤维悬浮液中浸泡10min后取出,自然晾干8h得到抗静电纺织材料。
对比例
以佛山某公司生产的抗静电纺织材料作为对比例 对本发明制得的抗静电纺织材料和对比例中的抗静电纺织材料进行性能检测,检测结果如表1所示:
1、测试方法:
表面电阻测试方法:将实例1~3和对比例中的纺织材料制成布料,将他们分别进行水洗,测得各纺织布料水洗后的表面电阻。
表1
测试项目 | 实例1 | 实例2 | 实例3 | 对比例 |
水洗前表面电阻(Ω) | 6.7×108 | 6.6×108 | 6.5×108 | 7.0×109 |
洗涤30次后表面电阻 | 6.8×108 | 6.7×108 | 6.6×108 | 8.0×109 |
根据上述中数据可知,本发明制得的抗静电纺织材料的表面电阻低,在水洗30次后的表面电阻保持稳定,抗静电效果好,具有广阔的应用前景。
Claims (6)
1.一种抗静电纺织材料的制备方法,其特征在于具体制备步骤为:
(1)向装有150~180mL去离子水的烧杯中加入30~40g蒽醌-2-磺酸钠,搅拌至溶解,得到浅黄色溶液,待烧杯冷却至室温后向烧杯中加入8~10mL吡咯,搅拌分散,得到导电体系混合液,将70~80g九水硝酸铁与60~70g5-磺基水杨酸依次加入200~300mL去离子水中,搅拌混合,静置反应,得到氧化引发体系溶液;
(2)裁剪得到PET水刺无纺布,在室温下将PET水刺无纺布完全浸渍在160~170mL的导电体系混合液中,浸渍后,将60~70mL氧化引发体系溶液用滴液漏斗滴加到导电体系混合液中,边滴加边搅拌,滴加完成后,继续浸渍PET水刺无纺布,得到聚吡咯/PET水刺无纺布即改性无纺布;
(3)将改性无纺布用清水冲洗后,在常温下平铺于表面皿上,自然晾干,得到晾干的改性无纺布,将20~25gPVA-co-PE纳米纤维母粒和70~80份醋酸纤维素丁酯母粒放在真空干燥箱中,加热升温,干燥,将干燥后的PVA-co-PE纳米纤维母粒与醋酸纤维素丁酯母粒混合均匀得到纺丝原料;
(4)将纺丝原料置于双螺杆挤出机中,经双螺杆挤出机挤出,得到复合纤维;将复合纤维缠绕在不锈钢支架上,不锈钢支架置于装有丙酮溶液的索氏萃取器中,将索氏萃取器放入恒温水浴中,保温后,得到PVA-co-PE 纳米纤维,将PVA-co-PE 纳米纤维在室温下自然晾干;
(5)将晾干后的20~30g的PVA-co-PE 纳米纤维置于装有70~80mL异丙醇水溶液的烧杯中,向烧杯加入2~3g聚乙烯醇,搅拌乳化分散,得到PVA-co-PE 纳米纤维悬浮液,将改性无纺布放入PVA-co-PE 纳米纤维悬浮液中浸泡后取出,自然晾干得到抗静电纺织材料。
2.根据权利要求1所述的一种抗静电纺织材料的制备方法,其特征在于:步骤(1)所述的去离子水的温度为80~90℃,搅拌分散时间为20~25min,搅拌混合时间为10~15min,静置反应时间为35~40min。
3.根据权利要求1所述的一种抗静电纺织材料的制备方法,其特征在于:步骤(2)所述的PET水刺无纺布的尺寸为8cm×6cm,浸渍时间为30~40min,滴液漏斗的滴加速率为2~3mL/min,继续浸渍时间为4~6h。
4.根据权利要求1所述的一种抗静电纺织材料的制备方法,其特征在于:步骤(3)所述的改性无纺布用清水冲洗次数为3~4次,自然晾干时间为6~7h,加热升温后温度为100~120℃,干燥时间为12~15h。
5.根据权利要求1所述的一种抗静电纺织材料的制备方法,其特征在于:步骤(4)所述的控制机头温度为200~220℃、双螺杆转速为100r/min、喂料速度为12g/min、后期牵伸倍数为25,复合纤维的直径为0.8~1.0mm,恒温水浴温度为80~85℃,保温时间为20~22h,自然晾干时间为8~10h。
6.根据权利要求1所述的一种抗静电纺织材料的制备方法,其特征在于:步骤(5)所述的异丙醇水溶液的质量分数为75%,搅拌乳化分散时间为3~5min,浸泡时间为5~10min,自然晾干时间为7~8h。
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