CN111021050A - 一种抗菌棉花纤维及其制备方法 - Google Patents
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Abstract
本发明提供一种抗菌棉花纤维及其制备方法,本发明的抗菌棉花纤维,在保持天然棉花纤维原有吸湿保湿、柔软亲肤的优点下,兼具石墨烯安全无毒、高效持久的抗菌性能。本发明抗菌棉花纤维的制备方法,是先通过超声作用分散石墨烯,同时使亲水基团、固色基团通过氢键、共价键等作用力***到石墨烯基团上,再通过浸泡固色作用,在天然棉花纤维上均匀原位地植入抗菌石墨烯基团,然后脱水烘干得到抗菌棉花纤维。该制备方法通过在浆料制备和浸泡过程进行参数设计和工艺控制,不仅简单高效,减少能耗,提高工艺可控性和连续性,可制备出一致性和稳定性好的产品,而且环境友好,充分实现精细化工和绿色环保的可持续发展理念,适合大规模推广和使用。
Description
技术领域
本发明涉及纺织技术领域,尤其涉及一种抗菌棉花纤维及其制备方法。
背景技术
随着社会的发展、经济水平的提高,人们更加注重自身健康和纺织品的品质,纯棉制品受到越来越多人的喜爱,从而导致棉花纤维的需求日益旺盛。纯棉制品具有以下优点:①良好的吸湿性;②具有良好的保湿性;③耐热性能良好;④与皮肤接触亲和无刺激。但传统的棉花纤维并具有良好的抗菌性能,从而导致棉花纤维易变质污染。为保护人们的身体健康和减少纤维制品滋生细菌引发疾病的危险,开发出具有抗菌性能的纺织品成为目前研究的重点。
目前,具有抗菌功能的纺织品大多数是纺织品后整理中添加,以获得具有抗菌性能的纺织品。常见的抗菌后整理剂分为无机抗菌整理剂、有机抗菌整理剂和天然生物抗菌整理剂三大类。无机抗菌剂主要以银溶液为主,但纺织品在使用过程中容易脱落影响抗菌性能,而且纳米级别的银通过皮肤接触渗入人体内部,对人体造成伤害;有机抗菌剂主要为有机化学合成物质组成,抗菌剂制备和添加过程中不仅对环境污染大,而且抗菌剂容易在纺织品表面形成覆盖层改变原有纺织品吸湿透气的特点,洗涤过程中抗菌剂又容易与有机清洗剂发生反应失去抗菌性能;天然生物抗菌剂是在天然生物中提取的具有抗菌功能的有机高分子物质组成的抗菌剂,制备成本高,不能广泛推广和使用。
石墨烯是一种由碳原子以Sp2杂化方式形成的蜂窝状平面薄膜,是一种只有一个原子层厚度的准二维材料,所以又叫做单原子层石墨。石墨烯是由英国曼彻斯特大学物理学家安德烈·盖姆和康斯坦丁·诺沃肖洛夫,用微机械剥离法成功从石墨中分离得到,是目前发现的最薄、强度最大、导电导热性能最强的一种新型纳米材料。石墨烯的抗菌性能于2010年被中国科学院上海应用物理研究所首次证实。国外专家揭示了石墨烯破坏细菌细胞膜的机制,相比于传统的无机、有机抗菌剂,石墨烯基本没有细胞毒性,更适合与人体皮肤直接接触。根据国内外专家研究石墨烯的抗菌机理主要有两种方式,一种是通过破坏细胞膜完整性,引起细菌结构的破坏和功能的紊乱;另外一种是通过与微生物相互作用后进入微生物体内,使微生物自由基代谢平衡失调,导致生物膜和大分子物质发生纸质过氧化损伤,从而达到抑菌效果。
发明内容
本发明的目的在于:针对现有技术的不足,提供一种抗菌棉花纤维,该抗菌棉花纤维在保持天然棉花纤维原有吸湿保湿、柔软亲肤的优点下,兼具石墨烯安全无毒、高效持久的抗菌性能,为了达到上述目的,本发明采用如下技术方案:
一种抗菌棉花纤维,所述抗菌棉花纤维由天然棉花纤维和抗菌石墨烯浆料复合获得,所述抗菌石墨烯浆料的各组分按重量百分比的构成为:石墨烯材料0.01%~5%、分散剂0.1%~3%、固色剂0.05%~5%、润湿剂0.01%~1%、余量为水。
作为本发明抗菌棉花纤维的一种改进,所述石墨烯材料为石墨烯、氧化石墨烯、氧化还原石墨烯、改性石墨烯的一种或两种以上的组合。
作为本发明抗菌棉花纤维的一种改进,所述分散剂为十二烷基苯磺酸钠、聚乙二醇、聚乙烯吡咯烷酮、聚山梨酯、微晶纤维素、聚醚改性硅氧烷共聚物的一种或者两种以上的组合。
作为本发明抗菌棉花纤维的一种改进,所述固色剂为二烷基氨基甲基丙烯酸乙酯、聚二甲基二烯丙基氯化铵、二乙烯三胺-二甲胺-环氧氯丙烷共聚物的一种或者两种以上的组合。
作为本发明抗菌棉花纤维的一种改进,所述润湿剂为二辛基磺化琥珀酸钠、炔二醇乙氧基化合物、聚醚改性硅氧烷共聚物的一种或者两种以上的组合。
作为本发明抗菌棉花纤维的一种改进,所述石墨烯材料在所述抗菌棉花纤维上的负载比例为0.1%~5%。
本发明的另一目的是提供一种抗菌棉花纤维的制备方法,包括如下步骤:
S01、按比例称取石墨烯材料、分散剂、固色剂、润湿剂至去离子水中,超声分散均匀,其中各组分按重量百分比的构成为:石墨烯材料0.01%~5%、分散剂0.1%~3%、固色剂0.05%~5%、润湿剂0.01%~1%;
S02、将天然棉花纤维与浆料按质量比为1:10~20进行混合,浸泡;
S03、将浸泡好的棉花纤维进行脱水烘干,得到抗菌棉花纤维。
作为本发明抗菌棉花纤维的制备方法的一种改进,所述步骤S02中,天然棉花纤维使用前先进行松解、分梳和除杂处理。
作为本发明抗菌棉花纤维的制备方法的一种改进,所述步骤S02中,天然棉花纤维与浆料浸泡温度为40~80℃,浸泡时间为0.5~8h,浸泡过程中不断进行搅动作用,使得浆料能够完全渗入天然棉花纤维内部。
作为本发明抗菌棉花纤维的制备方法的一种改进,所述步骤S03中,脱水后棉花纤维的含水率为10~40%,烘干温度为80~120℃。
与现有技术相比,本发明实现的有益效果至少包括:
本发明提供一种抗菌棉花纤维及其制备方法,本发明的抗菌棉花纤维,在保持天然棉花纤维原有吸湿保湿、柔软亲肤的优点下,兼具石墨烯安全无毒、高效持久的抗菌性能,对常见致病菌抑菌率高,而且经50次洗涤后,仍保持优异的抗菌效果,符合国家抗菌纺织品最高标准。
本发明的抗菌棉花纤维由天然棉花纤维和抗菌石墨烯浆料复合获得,该抗菌石墨烯浆料中的分散剂能使各组分在抗菌石墨烯浆料中均匀分散性且长时间稳定存在不易沉降;润湿剂能大大降低原本疏水的天然棉花纤维与抗菌石墨烯浆料的表面张力,使天然棉花纤维在浆料中快速润湿和浸泡完全,降低浸泡难度和提高浸泡速率;固色剂能够显著增强抗菌石墨烯和天然棉花纤维之间的作用力,使抗菌棉花纤维保持稳定长久的抗菌性能。
本发明抗菌棉花纤维的制备方法,是先通过超声作用分散石墨烯,同时使亲水基团、固色基团通过氢键、共价键等作用力***到石墨烯基团上,再通过浸泡固色作用,在天然棉花纤维上均匀原位地植入抗菌石墨烯基团,然后脱水烘干得到抗菌棉花纤维。该制备方法通过在浆料制备和浸泡过程进行参数设计和工艺控制,不仅简单高效,减少能耗,提高工艺可控性和连续性,可制备出一致性和稳定性好的产品,而且环境友好,充分实现精细化工和绿色环保的可持续发展理念,适合大规模推广和使用。
附图说明
下面就根据附图和具体实施方式对本发明及其有益的技术效果作进一步详细的描述,其中:
图1是本发明实施例1制备的抗菌棉花纤维的扫描电镜图片。
具体实施方式
下面就根据附图和具体实施例对本发明作进一步描述,但本发明的实施方式不局限于此。
实施例1:一种抗菌棉花纤维的制备方法,其特征在于,包括以下步骤:
S01、按比例称取石墨烯材料、分散剂、固色剂、润湿剂至去离子水中,超声分散均匀,其中各组分按重量百分比的构成为:氧化石墨烯0.2%、分散剂十二烷基苯磺酸钠0.6%、固色剂二烷基氨基甲基丙烯酸乙酯0.3%、润湿剂二辛基磺化琥珀酸钠0.02%;
S02、将天然棉花纤维松解、分梳和除杂处理后,与浆料按质量比为1:12进行混合,在60℃的浆料中浸泡2h,浸泡过程中不断进行搅动作用;
S03、将浸泡好的棉花纤维进行脱水,脱水后的棉花纤维的含水率为25%,最后将其在105℃下烘干,得到抗菌棉花纤维。
实施例2:一种抗菌棉花纤维的制备方法,其特征在于,包括以下步骤:
S01、按比例称取石墨烯材料、分散剂、固色剂、润湿剂至去离子水中,超声分散均匀,其中各组分按重量百分比的构成为:石墨烯0.08%、分散剂聚乙二醇2%、固色剂聚二甲基二烯丙基氯化铵0.05%、润湿剂炔二醇乙氧基化合物0.05%;
S02、将天然棉花纤维松解、分梳和除杂处理后,与浆料按质量比为1:10进行混合,在45℃的浆料中浸泡1h,浸泡过程中不断进行搅动作用;
S03、将浸泡好的棉花纤维进行脱水,脱水后的棉花纤维的含水率为35%,最后将其在95℃下烘干,得到抗菌棉花纤维。
实施例3:一种抗菌棉花纤维的制备方法,其特征在于,包括以下步骤:
S01、按比例称取石墨烯材料、分散剂、固色剂、润湿剂至去离子水中,超声分散均匀,其中各组分按重量百分比的构成为:氧化还原石墨烯0.5%、分散剂聚乙烯吡咯烷酮0.5%、固色剂二乙烯三胺-二甲胺-环氧氯丙烷0.8%、润湿剂聚醚改性硅氧烷共聚物0.5%;
S02、将天然棉花纤维松解、分梳和除杂处理后,与浆料按质量比为1:14进行混合,在50℃的浆料中浸泡4h,浸泡过程中不断进行搅动作用;
S03、将浸泡好的棉花纤维进行脱水,脱水后的棉花纤维的含水率为30%,最后将其在110℃下烘干,得到抗菌棉花纤维。
实施例4:一种抗菌棉花纤维的制备方法,其特征在于,包括以下步骤:
S01、按比例称取石墨烯材料、分散剂、固色剂、润湿剂至去离子水中,超声分散均匀,其中各组分按重量百分比的构成为:改性石墨烯1%、分散剂聚山梨酯1.2%、固色剂二烷基氨基甲基丙烯酸乙酯1%、润湿剂二辛基磺化琥珀酸钠0.8%;
S02、将天然棉花纤维松解、分梳和除杂处理后,与浆料按质量比为1:15进行混合,在65℃的浆料中浸泡5.5h,浸泡过程中不断进行搅动作用;
S03、将浸泡好的棉花纤维进行脱水,脱水后的棉花纤维的含水率为28%,最后将其在90℃下烘干,得到抗菌棉花纤维。
实施例5:一种抗菌棉花纤维的制备方法,其特征在于,包括以下步骤:
S01、按比例称取石墨烯材料、分散剂、固色剂、润湿剂至去离子水中,超声分散均匀,其中各组分按重量百分比的构成为:氧化石墨烯3%、分散剂烷基酚聚氧乙烯醚1.8%、固色剂聚二甲基二烯丙基氯化铵2%、润湿剂炔二醇乙氧基化合物1%;
S02、将天然棉花纤维松解、分梳和除杂处理后,与浆料按质量比为1:20进行混合,在70℃的浆料中浸泡7h,浸泡过程中不断进行搅动作用;
S03、将浸泡好的棉花纤维进行脱水,脱水后的棉花纤维的含水率为20%,最后将其在80℃下烘干,得到抗菌棉花纤维。
对实施例1至5的抗菌棉花纤维进行抗菌性能检测,抗细菌和白色念珠菌性能参照GB/T 20944.3-2008震荡法:将试样置于烧瓶中、加入接种菌液、震荡,吸取瓶中液体,置于平板培养48小时(白色念珠菌72小时),记录菌落数(cfu/ml)计算抑菌率。测试对象包括金黄色葡萄球菌(Staphylococcus aureus) ATCC 6538、大肠埃希氏菌(Escherichia coli)ATCC 25922、白色念珠菌(Canidia Albicans) ATCC 10231。实施例1至5的抗菌棉花纤维分别编号为S1~S5,测试编号为S1~S5的抗菌棉花纤维的抗菌性能,所得结果见表1。
表1:编号为S1~S5的抗菌棉花纤维的抗细菌/白色念珠菌性能
*参照标准,抗菌率标准要求≥70%。
对实施例4的抗菌棉花纤维按照纺织标准《FZ/T 73023-2006 抗菌针织品》分别进行水洗10次、20次和50次后的抗菌性能测试,所得结果见表2,从测试结果可知,经50次洗涤后,制得的抗菌棉花纤维仍保持优异的抗菌效果,符合国家抗菌纺织品最高标准。
表2:实施例4的抗菌棉花纤维分别进行水洗10次、20次和50次后的抗菌性能
采用本领域常规方法对上述实施例1至5的抗菌棉花纤维进行纺纱、纺织,即制得功能性棉质纺织品(功能性服装、床上用品、毛巾、浴巾、袜子、眼罩、口罩、护肤用品等)。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和结构的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同范围限定。
Claims (10)
1.一种抗菌棉花纤维,所述抗菌棉花纤维由天然棉花纤维和抗菌石墨烯浆料复合获得,所述抗菌石墨烯浆料的各组分按重量百分比的构成为:石墨烯材料0.01%~5%、分散剂0.1%~3%、固色剂0.05%~5%、润湿剂0.01%~1%、余量为水。
2.根据权利要求1所述的一种抗菌棉花纤维,其特征在于,所述石墨烯材料为石墨烯、氧化石墨烯、氧化还原石墨烯、改性石墨烯的一种或两种以上的组合。
3.根据权利要求1所述的一种抗菌棉花纤维,其特征在于,所述分散剂为十二烷基苯磺酸钠、聚乙二醇、聚乙烯吡咯烷酮、聚山梨酯、微晶纤维素、聚醚改性硅氧烷共聚物的一种或者两种以上的组合。
4.根据权利要求1所述的一种抗菌棉花纤维,其特征在于,所述固色剂为二烷基氨基甲基丙烯酸乙酯、聚二甲基二烯丙基氯化铵、二乙烯三胺-二甲胺-环氧氯丙烷共聚物的一种或者两种以上的组合。
5.根据权利要求1所述的一种抗菌棉花纤维,其特征在于,所述润湿剂为二辛基磺化琥珀酸钠、炔二醇乙氧基化合物、聚醚改性硅氧烷共聚物的一种或者两种以上的组合。
6.根据权利要求1所述的一种抗菌棉花纤维,其特征在于,所述石墨烯材料在所述抗菌棉花纤维上的负载比例为0.1%~5%。
7.一种如权利要求1所述的抗菌棉花纤维的制备方法,其特征在于,包括以下步骤:
S01、按比例称取石墨烯材料、分散剂、固色剂、润湿剂至去离子水中,超声分散均匀,其中各组分按重量百分比的构成为:石墨烯材料0.01%~5%、分散剂0.1%~3%、固色剂0.05%~5%、润湿剂0.01%~1%;
S02、将天然棉花纤维与浆料按质量比为1:10~20进行混合,浸泡;
S03、将浸泡好的棉花纤维进行脱水烘干,得到抗菌棉花纤维。
8.根据权利要求7所述的一种抗菌棉花纤维的制备方法,其特征在于,所述步骤S02中,天然棉花纤维使用前先进行松解、分梳和除杂处理。
9.根据权利要求7所述的一种抗菌棉花纤维的制备方法,其特征在于,所述步骤S02中,天然棉花纤维与浆料浸泡温度为40~80℃,浸泡时间为0.5~8h,浸泡过程中不断进行搅动作用。
10.根据权利要求7所述的一种抗菌棉花纤维的制备方法,其特征在于,所述步骤S03中,脱水后棉花纤维的含水率为10~40%,烘干温度为80~120℃。
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