CN110960926A - 一种复合空气纤维过滤器的制备方法 - Google Patents
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Abstract
本发明涉及一种复合空气纤维过滤器的制备方法,其特征在于包括下述步骤:①制备抗菌导电涂料:将石墨烯浆料、去离子水、水性聚氨酯按配比配料、混合,搅拌1‑4h;搅拌的同时逐滴加入消泡剂;然后加入纳米银离子和甲壳素溶液,继续搅拌均匀,得到抗菌导电涂料;②制备滤纸:用胶枪在PET骨架支撑体上进行点胶,点胶量为3g/m2‑8g/m2;然后与PP熔喷层粘合;粘合后PET骨架支撑体和PP熔喷层压牢形成纤维滤网;③制备纤维过滤器:将步骤①制备得到的抗菌导电涂料涂覆到步骤②制备的纤维滤网的PET骨架支撑体表面上,涂层厚度为1‑5μm,得到滤纸;将滤纸按常规方法制备成纤维过滤器,即得到具有抗菌和导电性能的复合空气纤维过滤器。
Description
技术领域
本发明涉及到空气净化领域,尤其涉及一种复合空气纤维过滤器的制备方法。
背景技术
现有的室内居住环境空气质量与人体健康密切相关,在众多污染源中颗粒物是主要的污染物,颗粒物本身及携带各种病菌对人体健康产生危害。所以,在居住建筑室内安装空气净化器已势在必行。而空气净化器中起主要过滤作用的就是滤网,一款高效多功能的空气净化滤网对维护人体健康具有重要意义。
发明内容
本发明所要解决的技术问题是针对现有技术的现状提供一种同时具有导电性和抗菌性的复合空气纤维过滤器的制备方法。
本发明解决上述技术问题所采用的技术方案为:该复合空气纤维过滤器的制备方法,其特征在于包括下述步骤:
①制备抗菌导电涂料
将石墨烯浆料、去离子水、水性聚氨酯按配比配料、混合,搅拌1-4h;搅拌的同时逐滴加入消泡剂,消泡剂的加入量为石墨烯浆料、去离子水和水性聚氨酯总重量的0.05-1%;消泡剂可根据需要选用现有技术中的任意一种,较好的,可以选用消泡剂BYK019;
然后加入纳米银离子和甲壳素溶液,继续搅拌均匀,得到抗菌导电涂料;
纳米银离子:甲壳素溶液:石墨烯浆料:去离子水:水性聚氨酯的配比为1.5:4:21:21:7~3:10:21:21:21;
所述石墨烯浆料为石墨烯固含量为2-3wt%的去离子水混合物;所述甲壳素溶液为市购甲壳素整理剂SAL6680;
②制备滤纸
用胶枪在PET骨架支撑体上进行点胶,点胶量为3g/m2-8g/m2;然后与PP熔喷层粘合;粘合后PET骨架支撑体和PP熔喷层压牢形成纤维滤网;
所述PET骨架支撑体为克重为50~90g/m2的PET纤维织物;所述PP熔喷层是PP非织造熔喷布,丝径为3微米-99微米;
③制备纤维过滤器
将步骤①制备得到的抗菌导电涂料涂覆到步骤②制备的纤维滤网的PET骨架支撑体表面上,涂层厚度为1-5μm,得到滤纸;将滤纸按常规方法制备成纤维过滤器,即得到具有抗菌和导电性能的复合空气纤维过滤器。
较好的,所述石墨烯浆料的粘度为0.01~0.05pa.s;所述水性聚氨酯的粘度为0.005~0.02pa.s。
较好的,所述纳米银离子为纳米银抗菌整理剂SILV9700。
与现有技术相比,本发明的方法制备得到的复合空气纤维过滤器通过导电滤网表面的高压静电显著改善过滤颗粒物的能力,从而去除空气中的PM0.3um的颗粒物;另一方面对携带进入滤网表面的细菌可及时杀灭,防止二次危害,同时可延长滤网的使用寿命,绿色环保。
具体实施方式
以下结合实施例对本发明作进一步详细描述。
该复合空气纤维过滤器的制备方法包括下述步骤:
①备抗菌导电涂料
将石墨烯浆料、去离子水、水性聚氨酯按配比配料、混合,搅拌1-4h;搅拌的同时逐滴加入消泡剂,消泡剂的加入量为石墨烯浆料、去离子水和水性聚氨酯总重量的0.05-1%;本实施例中的消泡剂为消泡剂BYK019。
然后加入纳米银离子和甲壳素溶液,继续搅拌均匀,得到抗菌导电涂料;
纳米银离子:甲壳素溶液:石墨烯浆料:去离子水:水性聚氨酯的配比为1.5:4:21:21:7~3:10:21:21:21;
所述石墨烯浆料为石墨烯固含量为2.5wt%的去离子水混合物;石墨烯浆料的粘度为0.03pa.s;水性聚氨酯的粘度为0.01pa.s。
所述甲壳素溶液为市购甲壳素整理剂SAL6680。
纳米银离子为市购纳米银抗菌整理剂SILV9700。
②制备滤纸
将PET骨架支撑体和PP熔喷层放置在两条不同的传输带上,其中PET骨架支撑体经过胶枪的喷头进行点胶,用胶枪在PET骨架支撑体上进行点胶,点胶量为5g/m2;点胶后的PET骨架支撑体与另一条传输带上的PP熔喷层粘合,粘合好后同时进入一压滚内压牢形成纤维滤网,卷成卷材待用。
本实施例中使用的PET骨架支撑体为克重为70g/m2的PET纤维织物;PP熔喷层是PP非织造熔喷布,丝径为15微米;
③制备纤维过滤器
将步骤①制备得到的抗菌导电涂料涂覆到步骤②制备的纤维滤网的PET骨架支撑体表面上,涂层厚度为1-5μm,得到滤纸;将滤纸按常规方法折叠固定到框架上制备成纤维过滤器,即得到具有抗菌和导电性能的复合空气纤维过滤器。
将制备的复合空气纤维过滤器进行测试。
采用控制电阻值得方法测试导电性,仪器为ZC-90高绝缘电阻测量仪,测试电阻为103Ω~105Ω;说明石墨烯导电涂料有很好的导电性,能够在滤纸表面形成高压静电,以吸附空气中的颗粒物尤其是对粒径很小的颗粒物吸附效果显著。
采用GB/T6165-2008《高效空气过滤器性能试验方法效率和阻力》方法测试过滤性能,测试仪器为美国TSI自动滤料检测仪(8130)。测试结果99.99937@≥0.3μm,99.99976%@≥0.5μm,100.00000%@≥1.0μm,压降<40Pa。
采用参照《FZT 73023-2006抗菌针织品》方法测试其抗菌性能,测试结果金黄色葡萄球菌抑菌率I=99.9%,长霉等级0级。
Claims (4)
1.一种复合空气纤维过滤器的制备方法,其特征在于包括下述步骤:
①制备抗菌导电涂料
将石墨烯浆料、去离子水、水性聚氨酯按配比配料、混合,搅拌1-4h;搅拌的同时逐滴加入消泡剂,消泡剂的加入量为石墨烯浆料、去离子水和水性聚氨酯总重量的0.05-1%;
然后加入纳米银离子和甲壳素溶液,继续搅拌均匀,得到抗菌导电涂料;
纳米银离子:甲壳素溶液:石墨烯浆料:去离子水:水性聚氨酯的配比为1.5:4:21:21:7~3:10:21:21:21;
所述石墨烯浆料为石墨烯固含量为2-3wt%的去离子水混合物;所述甲壳素溶液为市购甲壳素整理剂SAL6680;
②制备滤纸
用胶枪在PET骨架支撑体上进行点胶,点胶量为3g/m2-8g/m2;然后与PP熔喷层粘合;粘合后PET骨架支撑体和PP熔喷层压牢形成纤维滤网;
所述PET骨架支撑体为克重为50~90g/m2的PET纤维织物;所述PP熔喷层是PP非织造熔喷布,丝径为3微米-99微米;
③制备纤维过滤器
将步骤①制备得到的抗菌导电涂料涂覆到步骤②制备的纤维滤网的PET骨架支撑体表面上,涂层厚度为1-5μm,得到滤纸;将滤纸按常规方法制备成纤维过滤器,即得到具有抗菌和导电性能的复合空气纤维过滤器。
2.根据权利要求1所述的复合空气纤维过滤器的制备方法,其特征在于所述石墨烯浆料的粘度为0.01~0.05pa.s;所述水性聚氨酯的粘度为0.005~0.02pa.s。
3.根据权利要求1所述的复合空气纤维过滤器的制备方法,其特征在于所述纳米银离子为纳米银抗菌整理剂SILV9700。
4.根据权利要求1至3任一权利要求所述的复合空气纤维过滤器的制备方法,其特征在于所述消泡剂为消泡剂BYK019。
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