CN112220130A - 一种防pm2.5的铜纳米线口罩及其制备方法 - Google Patents
一种防pm2.5的铜纳米线口罩及其制备方法 Download PDFInfo
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 90
- 239000010949 copper Substances 0.000 title claims abstract description 90
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- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims description 16
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- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 7
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- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 claims description 7
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
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- A—HUMAN NECESSITIES
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- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
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- A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
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- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
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Abstract
本发明公开了一种防PM2.5的铜纳米线口罩,该铜纳米线口罩的口罩滤片包括三层,即外层、过滤层、内层;过滤层的基础布选用碳纤维布,过滤层由铜纳米线浸泡或涂覆到基础布上,再覆盖一层PDA‑PEI改性反渗透膜。本发明还公开了该种防PM2.5的铜纳米线口罩的制备方法,步骤包括:1)制备铜纳米线溶液;2)制备PDA‑PEI改性反渗透膜;3、制备过滤层;4)制备口罩滤片,利用口罩生产线得到防PM2.5的铜纳米线口罩。本发明的口罩,具有杀菌、抑菌、超疏水、透气性强,预防疾病的效果。
Description
技术领域
本发明属于卫生保健用品技术领域,涉及一种防PM2.5的铜纳米线口罩,本发明还涉及该种防PM2.5的铜纳米线口罩的制备方法。
背景技术
大气污染是我国公共卫生领域的一项重大挑战。细颗粒物(PM2.5)作为大气颗粒物中的主要污染成分,与心血管疾病的发生发展密切相关。虽然细颗粒物只是地球大气成分中含量很少的组分,但它对空气质量和能见度等有重要的影响。与较粗的大气颗粒物相比,细颗粒物粒径小,富含大量的有毒、有害物质且在大气中的停留时间长、输送距离远,因而对人体健康和大气环境质量的影响更大。研究表明,颗粒越小对人体健康的危害越大。细颗粒物能飘到较远的地方,因此影响范围较大。
在个人防护PM2.5方面,最有效的防护措施是佩戴口罩,而口罩最重要的部件是口罩滤片。市面上带有口罩滤片的口罩主要强调的是过滤效果,且过滤效果高低不一。即便是阻挡了PM2.5颗粒,被过滤的颗粒和细菌也会粘贴在口罩上被人体吸入。另外市面上存在的具有抗菌效果的口罩,又不具有防PM2.5功能。因此,需要提供一种既可以防PM2.5,又可以具有杀菌作用的口罩。铜属于重金属,重金属具有杀菌作用也是公认的。重金属均具有毒性,在人体内达到一定剂量会对健康有影响,甚至致使人体中毒,其中银还有一定的神经毒性和遗传毒性。甚至欧美已禁止使用纳米银做抗菌剂,部分使用纳米铜代替。而铜是人体必需的微量元素之一,可被人体代谢吸收,而银在人体很难代谢,会在人体内富集。
发明内容
本发明的目的是提供一种防PM2.5的铜纳米线口罩,解决了现有技术即是阻挡了PM2.5颗粒,被过滤的颗粒和细菌也会粘贴在口罩上被人体吸入;另外具有抗菌效果的口罩,又不具有防PM2.5功能的问题。
本发明的另一目的是提供该种防PM2.5的铜纳米线口罩的制备方法。
本发明所采用的技术方案是,一种防PM2.5的铜纳米线口罩,该铜纳米线口罩的口罩滤片包括三层,即外层、过滤层、内层;过滤层由铜纳米线浸泡或涂覆到基础布上,再覆盖一层PDA-PET改性反渗透膜。
本发明所采用的另一技术方案是,一种防PM2.5的铜纳米线口罩的制备方法,按照以下步骤实施:
步骤1、制备铜纳米线溶液,
称取630mg十六胺、63mg二水氯化铜、150mg葡萄糖和30ml超纯水;将该四种组分共同溶解在烧瓶中,封盖,并在室温下搅拌均匀,过夜;然后将烧瓶转移到油浴中,在100-120℃下搅拌5-6小时,得到粒径15-20nm的铜纳米线试剂;随后对铜纳米线试剂进行超声处理,得到铜纳米线分散液;
步骤2、制备PDA-PEI改性反渗透膜,
通过多巴胺在反渗透膜表面自聚,形成超薄聚多巴胺涂层,再利用PDA涂层上的活性官能团与PEI反应,制得PDA-PEI改性反渗透膜;
步骤3、制备过滤层,
3.1)将碳纤维布浸渍在铜纳米线分散液中1-2h,充分吸收铜纳米线分散液,得到碳纤维预浸布;将碳纤维预浸布干燥后,得到带有铜纳米线的过滤层;或者,在铜纳米线分散液中提取铜纳米线粉末,将剂粘接均匀粘结到碳纤维布表面,然后将铜纳米线粉末喷涂到粘结剂上,得到带有铜纳米线的过滤层;
3.2)将PDA-PEI改性反渗透膜利用粘结剂粘接在带有铜纳米线的过滤层上,构成复合材料的过滤层;
步骤4、制备口罩滤片,利用口罩生产线得到防PM2.5的铜纳米线口罩,
4.1)选用透气性好的纤维材质作为口罩滤片的外层和内层材料,将外层、步骤3得到的过滤层、内层三层材料,按照顺序放在一起,通过滚压复合,得到口罩滤片;
4.2)根据口罩设计要求,将口罩滤片剪裁成不同形状大小的尺寸,进入口罩生产线。
本发明的有益效果是,该口罩具有杀菌、抑菌、超疏水、透气性强,预防疾病的效果。铜纳米线抗菌、杀菌、防腐除臭效果较好。由于铜纳米材料的表面效应、体积效应、量子尺寸效应以及吸附能力有利于吸附PM2.5细小颗粒。碳纤维布强度高、密度小、厚度薄,铜纳米线在碳纤维布表面构成网格结构,有利于防护PM2.5。铜纳米线与碳纤维布结合可制出超疏水、透气性好、抗紫外线强的纺织品,其超疏水接触角可达到162°。PDA-PEI改性反渗透膜可以在铜纳米线与碳纤维布过滤PM2.5颗粒以及细菌之后隔断粘结在口罩上的残留物对人体进行二次伤害。
具体实施方式
下面结合具体实施方式对本发明进行详细说明。
本发明是一种防PM2.5的铜纳米线口罩,该铜纳米线口罩的核心部分是口罩滤片,口罩滤片包括三层,即外层、过滤层、内层;
过滤层的基础布选用碳纤维布,碳纤维布厚度为0.111mm,过滤层由铜纳米线浸泡或涂覆到基础布上,再覆盖一层PDA-PEI改性反渗透膜。
涂覆方式包括喷笔或使用胶头滴管滴注、或粘结剂粘结,粘结剂选用无影胶。
通过多巴胺在反渗透膜(选用PE膜或HDPE膜)表面的自聚,在反渗透膜表面形成超薄聚多巴胺涂层(PDA),再利用PDA涂层上的活性官能团与PEI反应,制得PDA-PEI改性反渗透膜。
本发明防PM2.5的铜纳米线口罩的制备方法,按照以下步骤实施:
步骤1、制备铜纳米线溶液,
称取630mg十六胺、63mg二水氯化铜、150mg葡萄糖和30ml超纯水;将该四种组分共同溶解在烧瓶中,封盖,并在室温下搅拌均匀,过夜;然后将烧瓶转移到油浴中,在100-120℃下搅拌5-6小时,得到粒径15-20nm的铜纳米线试剂;随后对铜纳米线试剂进行超声处理,得到铜纳米线分散液;
步骤2、制备PDA-PEI改性反渗透膜,
通过多巴胺在反渗透膜表面自聚,形成超薄聚多巴胺涂层,再利用PDA涂层上的活性官能团与PEI反应,制得PDA-PEI改性反渗透膜;
步骤3、制备过滤层,
3.1)将碳纤维布浸渍在铜纳米线分散液中1-2h,充分吸收铜纳米线分散液,得到碳纤维预浸布;将碳纤维预浸布干燥后,得到带有铜纳米线的过滤层;或者,在铜纳米线分散液中提取铜纳米线粉末,将剂粘接均匀粘结到碳纤维布表面,然后将铜纳米线粉末喷涂到粘结剂上,得到带有铜纳米线的过滤层;
3.2)将PDA-PEI改性反渗透膜利用粘结剂粘接在带有铜纳米线的过滤层上,构成复合材料的过滤层;
步骤4、制备口罩滤片,利用口罩生产线得到防PM2.5的铜纳米线口罩,
4.1)选用透气性好的纤维材质作为口罩滤片的外层和内层材料,将外层、步骤3得到的过滤层、内层三层材料,按照顺序放在一起,通过滚压复合,得到口罩滤片;
4.2)根据口罩设计要求,将口罩滤片剪裁成不同形状大小的尺寸,进入口罩生产线,即成。
本发明为了提高口罩滤片防PM2.5的性能,采用铜纳米线浸泡到纤维布上的技术(或再涂敷PDA-PEI改性反渗透膜),由于碳纤维布的抗拉、抗剪性能好,铜纳米线在碳纤维表面构成网络结构,口罩的过滤层结构受力效果好;铜纳米线的材料小尺寸效应,高表面能赋予银纳米线材质不仅具有杀菌抑菌效果,而且吸附能力强,有效阻挡PM2.5小颗粒。
实施例1
浸泡方式。
步骤1、制备铜纳米线溶液,
称取630mg十六胺、63mg二水氯化铜、150mg葡萄糖和30ml超纯水;将该四种组分共同溶解在烧瓶中,封盖,并在室温下搅拌均匀,过夜;然后将烧瓶转移到油浴中,在100℃下搅拌6小时,得到粒径15nm的铜纳米线试剂;随后对铜纳米线试剂进行超声处理,得到铜纳米线分散液;
步骤2、制备PDA-PEI改性反渗透膜,
通过多巴胺在反渗透膜表面自聚,形成超薄聚多巴胺涂层,再利用PDA涂层上的活性官能团与PEI反应,制得PDA-PEI改性反渗透膜;
步骤3、制备过滤层,
3.1)将碳纤维布浸渍在铜纳米线分散液中1h,充分吸收铜纳米线分散液,得到碳纤维预浸布;将碳纤维预浸布干燥后,得到带有铜纳米线的过滤层;
3.2)将PDA-PEI改性反渗透膜利用粘结剂粘接在带有铜纳米线的过滤层上,构成复合材料的过滤层;
步骤4、制备口罩滤片,利用口罩生产线得到防PM2.5的铜纳米线口罩,
4.1)选用透气性好的纤维材质作为口罩滤片的外层和内层材料,将外层、步骤3得到的过滤层、内层三层材料,按照顺序放在一起,通过滚压复合,得到口罩滤片;
4.2)根据口罩设计要求,将口罩滤片剪裁成不同形状大小的尺寸,进入口罩生产线,即成。
实施例2
浸泡方式。
步骤1、制备铜纳米线溶液,
称取630mg十六胺、63mg二水氯化铜、150mg葡萄糖和30ml超纯水;将该四种组分共同溶解在烧瓶中,封盖,并在室温下搅拌均匀,过夜;然后将烧瓶转移到油浴中,在110℃下搅拌6小时,得到粒径18nm的铜纳米线试剂;随后对铜纳米线试剂进行超声处理,得到铜纳米线分散液;
步骤2、制备PDA-PEI改性反渗透膜,
通过多巴胺在反渗透膜表面自聚,形成超薄聚多巴胺涂层,再利用PDA涂层上的活性官能团与PEI反应,制得PDA-PEI改性反渗透膜;
步骤3、制备过滤层,
3.1)将碳纤维布浸渍在铜纳米线分散液中1.5h,充分吸收铜纳米线分散液,得到碳纤维预浸布;将碳纤维预浸布干燥后,得到带有铜纳米线的过滤层;
3.2)将PDA-PEI改性反渗透膜利用粘结剂粘接在带有铜纳米线的过滤层上,构成复合材料的过滤层;
步骤4、制备口罩滤片,利用口罩生产线得到防PM2.5的铜纳米线口罩,
4.1)选用透气性好的纤维材质作为口罩滤片的外层和内层材料,将外层、步骤3得到的过滤层、内层三层材料,按照顺序放在一起,通过滚压复合,得到口罩滤片;
4.2)根据口罩设计要求,将口罩滤片剪裁成不同形状大小的尺寸,进入口罩生产线,即成。
实施例3
粘结剂粘接方式。
步骤1、制备铜纳米线溶液,
称取630mg十六胺、63mg二水氯化铜、150mg葡萄糖和30ml超纯水;将该四种组分共同溶解在烧瓶中,封盖,并在室温下搅拌均匀,过夜;然后将烧瓶转移到油浴中,在120℃下搅拌5小时,得到粒径15nm的铜纳米线试剂;随后对铜纳米线试剂进行超声处理,得到铜纳米线分散液;
步骤2、制备PDA-PEI改性反渗透膜,
通过多巴胺在反渗透膜表面自聚,形成超薄聚多巴胺涂层,再利用PDA涂层上的活性官能团与PEI反应,制得PDA-PEI改性反渗透膜;
步骤3、制备过滤层,
3.1)在铜纳米线分散液中提取铜纳米线粉末,将剂粘接均匀粘结到碳纤维布表面,然后将铜纳米线粉末喷涂到粘结剂上,得到带有铜纳米线的过滤层;
3.2)将PDA-PEI改性反渗透膜利用粘结剂粘接在带有铜纳米线的过滤层上,构成复合材料的过滤层;
步骤4、制备口罩滤片,利用口罩生产线得到防PM2.5的铜纳米线口罩,
4.1)选用透气性好的纤维材质作为口罩滤片的外层和内层材料,将外层、步骤3得到的过滤层、内层三层材料,按照顺序放在一起,通过滚压复合,得到口罩滤片;
4.2)根据口罩设计要求,将口罩滤片剪裁成不同形状大小的尺寸,进入口罩生产线,即成。
实施例4
粘结剂粘接方式。
步骤1、制备铜纳米线溶液,
称取630mg十六胺、63mg二水氯化铜、150mg葡萄糖和30ml超纯水;将该四种组分共同溶解在烧瓶中,封盖,并在室温下搅拌均匀,过夜;然后将烧瓶转移到油浴中,在110℃下搅拌5.5小时,得到粒径17nm的铜纳米线试剂;随后对铜纳米线试剂进行超声处理,得到铜纳米线分散液;
步骤2、制备PDA-PEI改性反渗透膜,
通过多巴胺在反渗透膜表面自聚,形成超薄聚多巴胺涂层,再利用PDA涂层上的活性官能团与PEI反应,制得PDA-PEI改性反渗透膜;
步骤3、制备过滤层,
3.1)在铜纳米线分散液中提取铜纳米线粉末,将剂粘接均匀粘结到碳纤维布表面,然后将铜纳米线粉末喷涂到粘结剂上,得到带有铜纳米线的过滤层;
3.2)将PDA-PEI改性反渗透膜利用粘结剂粘接在带有铜纳米线的过滤层上,构成复合材料的过滤层;
步骤4、制备口罩滤片,利用口罩生产线得到防PM2.5的铜纳米线口罩,
4.1)选用透气性好的纤维材质作为口罩滤片的外层和内层材料,将外层、步骤3得到的过滤层、内层三层材料,按照顺序放在一起,通过滚压复合,得到口罩滤片;
4.2)根据口罩设计要求,将口罩滤片剪裁成不同形状大小的尺寸,进入口罩生产线,即成。
Claims (5)
1.一种防PM2.5的铜纳米线口罩,其特征在于:该铜纳米线口罩的口罩滤片包括三层,即外层、过滤层、内层;
过滤层的基础布选用碳纤维布,过滤层由铜纳米线浸泡或涂覆到基础布上,再覆盖一层PDA-PEI改性反渗透膜。
2.根据权利要求1所述的防PM2.5的铜纳米线口罩,其特征在于:所述的碳纤维布厚度为0.111mm。
3.根据权利要求1所述的防PM2.5的铜纳米线口罩,其特征在于:所述的涂覆方式包括喷笔或使用胶头滴管滴注、或粘结剂粘结。
4.根据权利要求3所述的防PM2.5的铜纳米线口罩,其特征在于:所述的粘结剂选用无影胶。
5.一种防PM2.5的铜纳米线口罩的制备方法,其特征在于,按照以下步骤实施:
步骤1、制备铜纳米线溶液,
称取630mg十六胺、63mg二水氯化铜、150mg葡萄糖和30ml超纯水;将该四种组分共同溶解在烧瓶中,封盖,并在室温下搅拌均匀,过夜;然后将烧瓶转移到油浴中,在100-120℃下搅拌5-6小时,得到粒径15-20nm的铜纳米线试剂;随后对铜纳米线试剂进行超声处理,得到铜纳米线分散液;
步骤2、制备PDA-PEI改性反渗透膜,
通过多巴胺在反渗透膜表面自聚,形成超薄聚多巴胺涂层,再利用PDA涂层上的活性官能团与PEI反应,制得PDA-PEI改性反渗透膜;
步骤3、制备过滤层,
3.1)将碳纤维布浸渍在铜纳米线分散液中1-2h,充分吸收铜纳米线分散液,得到碳纤维预浸布;将碳纤维预浸布干燥后,得到带有铜纳米线的过滤层;或者,在铜纳米线分散液中提取铜纳米线粉末,将剂粘接均匀粘结到碳纤维布表面,然后将铜纳米线粉末喷涂到粘结剂上,得到带有铜纳米线的过滤层;
3.2)将PDA-PEI改性反渗透膜利用粘结剂粘接在带有铜纳米线的过滤层上,构成复合材料的过滤层;
步骤4、制备口罩滤片,利用口罩生产线得到防PM2.5的铜纳米线口罩,
4.1)选用透气性好的纤维材质作为口罩滤片的外层和内层材料,将外层、步骤3得到的过滤层、内层三层材料,按照顺序放在一起,通过滚压复合,得到口罩滤片;
4.2)根据口罩设计要求,将口罩滤片剪裁成不同形状大小的尺寸,进入口罩生产线。
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