CN114086394B - 一种口罩用无纺布的处理工艺 - Google Patents
一种口罩用无纺布的处理工艺 Download PDFInfo
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Abstract
本发明公开了一种口罩用无纺布的处理工艺,处理工序简单,处理后得到的无纺布具有长效抗菌、抗病毒特性,产品耐迁移性好,对环境友好,对人体安全无害,其技术方案要点是包括以下步骤:一、将无纺布浸入稀液池中,浸泡2‑5分钟,稀液池中盛放有抗菌液;二、将浸液后的无纺布通过沥水胶辊进行沥水处理;三、经过沥水处理的无纺布通过烘干机进行烘干处理,烘干温度为100‑120℃;四、烘干处理由的无纺布进行卷绕包装;其中,抗菌液包括抗菌抗病毒原料和净化水,抗菌抗病毒原料和纯净水的重量占比为1比15‑25;本发明适用于口罩技术领域。
Description
技术领域
本发明属于口罩技术领域,特指一种口罩用无纺布的处理工艺。
背景技术
医用口罩具有一定的防尘和滤菌功能,却不能杀灭病菌,但是医院的病菌较多,刚开始使用时口罩能够表现出较好的防尘和滤菌性能,但是随着佩戴时间的延长,口罩表面的病菌越积越多,滤菌性能也会越来越弱,因为口罩不能杀灭表面的病菌,也使口罩失去了保护性能。
目前,现有的抗菌抗病毒的口罩多是采用在原料制造过程中添加纳米银的方式制备的,如先制造成纳米抗菌纤维,再将纳米抗菌纤维加工成无纺布制作口罩过滤材料,起到过滤和抗微生物的双重作用;且抗菌无纺布的抗菌方式多采用溶出型抗菌,抗菌活性物质溶出速度快,容易脱落,造成安全性问题的同时,使用寿命比较短。
此外,本发明人已经研发出一种抗菌抗病毒粉末,如在先申请申请号2021112949741中公开的内容,其可以和PVC糊状树脂混合使用用于生产抗菌抗病毒手套,但其还难以直接应用于其它领域的应用,因此,也还需改进,使其适用于口罩生产领域。
发明内容
本发明的目的是提供一种口罩用无纺布的处理工艺,处理工序简单,处理后得到的无纺布具有长效抗菌、抗病毒特性,产品耐迁移性好,对环境友好,对人体安全无害。
本发明的目的是这样实现的:一种口罩用无纺布的处理工艺,包括以下步骤:
一、将无纺布浸入稀液池中,浸泡2-5分钟,稀液池中盛放有抗菌液;
二、将浸液后的无纺布通过沥水胶辊进行沥水处理;
三、经过沥水处理的无纺布通过烘干机进行烘干处理,烘干温度为100-120℃;
四、烘干处后的无纺布进行卷绕包装;
其中,抗菌液包括抗菌抗病毒原料和净化水,抗菌抗病毒原料和纯净水的重量占比为1比15-25。
处理前,可以将整卷无纺布通过打卷机进行牵引卷绕,牵引过程中依次进行浸泡、沥水、烘干处理,沥水过程中采用回收池进行收集,本处理工艺用时时间短,处理效率高。
本发明进一步设置为:所述抗菌抗病毒原料由抗菌抗病毒粉末5-10份、食用胶18份、纯净水100份混合均匀后获得。
其中食用胶可以采用明胶,明胶具有较好的亲水性能,混合后可以提高抗菌抗病毒粉末的亲水性,使其充分分散在溶液中,且可以提高溶液的黏度,使其具有较好的附着性。
本发明进一步设置为:所述抗菌抗病毒原料的制备工艺包括以下步骤:
S1、制备改性纳米银颗粒、改性纳米氧化锌颗粒和改性纳米氧化铝颗粒;
S2、准备正硅酸乙酯、无水乙醇和去离子水,按体积比,正硅酸乙酯:无水乙醇:去离子水为1:5:3,混合后,搅拌10min,然后加入硫酸,调节pH为3-4,搅拌20-30min,然后再加入氨水,调节pH为7-8,得到溶胶溶液;
向溶胶溶液加入改性纳米氧化锌颗粒和改性纳米氧化铝颗粒,并放入真空罐中,真空压强为-60kPa、温度为150℃,在搅拌条件下反应5-6h,得到水凝胶;
放入冷冻干燥箱中,在-20℃下冷冻3-4h,然后在-60℃下冷冻3-4h,即得气凝胶粉末;
通过上述步骤,可以制得氧化锌、氧化铝、氧化硅三元复合的气凝胶,具有更好的孔隙率和吸附效果,既能增加后续工艺中对纳米银的吸附,且纳米氧化锌和纳米氧化铝本身就能够起到抗菌抗病毒作用,因此能够进一步提高抗菌抗病毒作用。
S3、所述改性纳米银颗粒和气凝胶粉末为原料、以聚乳酸-羟基乙酸共聚物为载体材料、通过乳化溶剂挥发法制备得到半成品抗菌抗病毒粉末;
其中,乳化溶剂挥发法的具体制备方式为:首先将聚乳酸-羟基乙酸共聚物、纳米银及气凝胶粉末加入丙酮中超声溶解,得内油相,再加入液体石蜡与司盘80搅拌混合,其中液体石蜡与司盘80的体积质量比为1mL∶15mg,得外油相;采用注射器吸取内油相,于6℃下边滴加至外油相中边搅拌使乳化,滴加结束后,继续冰浴固化2h,然后于室温下固化2h,再去除残留的有机溶剂,经离心、过筛、洗涤后,将沉淀物冻干制备得到半成品抗菌抗病毒粉末;
步骤S3中,聚乳酸-羟基乙酸共聚物无毒,且具有良好的成囊和成膜的性能,经过步骤S3后,抗菌抗病毒粉末能够形成缓释微颗粒,且具有良好抗菌活性;
S4:按醋酸:壳聚糖:海藻酸钠=7:2:1的质量比,配制包覆溶液;将步骤S3中获得的半成品抗菌抗病毒粉末浸入包覆溶液中,搅拌均匀,然后离心分离干燥后获得成品抗菌抗病毒粉末;
通过对抗菌抗病毒粉末进行包覆处理,进一步提高缓释性能,使得抗菌、抗病毒性能能够长久持续,且包覆后,可以提高表面亲水性,提高其在水溶分散性。
本发明进一步设置为:所述改性纳米银颗粒的制备方法为:
采用柠檬酸盐和硝酸银进行加热回流反应,再经过冷却、超滤获得纳米银颗粒,再加入巯基丙酸溶液中进行改性表面处理,最终超滤获得改性纳米银颗粒。
纳米银颗粒经过表面处理改性处理,单分散性好,且容易分散混合在步骤S3的气凝胶粉末中。
本发明进一步设置为:所述改性纳米氧化锌颗粒的制备步骤包括:
将饱和氨水溶液和硫酸锌溶液按照体积比2:1进行混合,搅拌均匀后,超声处理,获得混合液,其中硫酸锌溶液的浓度为2mol/L;然后在混合液中加入木质素磺酸钠充分搅拌均匀,其中木质素磺酸钠的加入量为混合液重量的2%;再通过湿法研磨得到浆料,最终进行干燥处理,获得改性纳米氧化锌颗粒。
木质素磺酸钠使纳米氧化锌颗粒表面产生静电位阻,用于提高的分散性,同时,也能使得气凝胶在成型过程中,产生较大的孔隙率,最终能够对改性纳米银颗粒产生较好的吸附效果及吸附量。
本发明进一步设置为:所述改性纳米氧化铝颗粒的制备步骤包括:
将氯化铝加入到三乙二醇中,搅拌均匀,然后再加入NaOH水溶液,并在25-30℃的温度条件下搅拌1小时,然后逐渐升温至200-210℃并反应2-3小时,自然冷却后离心分离得到固体;将该固体加入至苯甲酸和硅烷耦合剂的混合液中,其中苯甲酸和硅烷耦合剂的组分占比按重量份数计为1:10,最终干燥,获得改性纳米氧化铝颗粒。
对纳米氧化铝颗粒进行表面改性处理,可以增加其表面相容性,且比表面积较大,可以增加其在制备气凝胶粉末时,与其他物质混合的分散均匀性,使其最终性能更加优异。
一种采用上述处理工艺制得的抗菌抗病毒无纺布。
一种抗菌抗病毒口罩,包含采用上述处理工艺制得的抗菌抗病毒无纺布。
通过采用上述技术方案具有以下优点,口罩外层可以采用抗菌抗病毒无纺布,具有抗菌、抗病毒结构和活性体,可充分与细菌、病毒接触,能有效杀死肺炎克雷伯氏菌及人冠状病毒、甲型流感病毒等;
本工艺采用控释非溶出技术工艺加工而成,其耐迁移性非常显著,从源头避免银离子或纳米银对人和环境的危害,具有长效抗菌的特点。
产品所含的银原素,能使细菌蛋白和病毒RNA失活,有效杀死细菌、病毒;具有抗菌、抗病毒特性,安全、生物无抗性,无耐药性;
能够长久的抗菌、抗病毒灭活性,无须自我消耗,抗菌、抗病毒性能保持时间长;
环境友好,产品对人体安全无害。
附图说明
图1是本发明的结构示意图;
图中附图标记为:1、稀液池;2、沥水胶辊;3、烘干机;4、打卷机。
具体实施方式
下面结合附图以具体实施例对本发明作进一步描述,参见图1:
实施例1:
一种口罩用无纺布的处理工艺,包括以下步骤:
一、将无纺布浸入稀液池1中,浸泡2分钟,稀液池中盛放有抗菌液;
二、将浸液后的无纺布通过沥水胶辊2进行沥水处理;
三、经过沥水处理的无纺布通过烘干机进行烘干处理,烘干温度为100℃;
四、烘干处后的无纺布进行卷绕包装;
其中,抗菌液包括抗菌抗病毒原料和净化水,抗菌抗病毒原料和纯净水的重量占比为1比15;抗菌抗病毒原料由抗菌抗病毒粉末10份、食用胶18份、纯净水100份混合均匀后获得。
所述抗菌抗病毒原料的制备工艺包括以下步骤:
S1-1、制备改性纳米银颗粒;
采用柠檬酸盐和硝酸银进行加热回流反应,再经过冷却、超滤获得纳米银颗粒,再加入质量百分比浓度为20%巯基丙酸溶液中进行改性表面处理,最终超滤获得改性纳米银颗粒;其中,纳米银颗粒与巯基丙酸溶液的重量分数比为1:100;
S1-2、制备改性纳米氧化锌颗粒:
将饱和氨水溶液和硫酸锌溶液按照体积比2:1进行混合,搅拌均匀后,超声处理,获得混合液,其中硫酸锌溶液的浓度为2mol/L;然后在混合液中加入木质素磺酸钠充分搅拌均匀,其中木质素磺酸钠的加入量为混合液重量的2%;再通过湿法研磨得到浆料,最终进行干燥处理,获得改性纳米氧化锌颗粒;
S1-3、制备改性纳米氧化铝颗粒:
将氯化铝加入到三乙二醇中,其重量份数比为1:5,搅拌均匀,然后再加入质量百分比浓度为15%的NaOH水溶液,NaOH和氯化铝的摩尔比为1:2,并在25℃的温度条件下搅拌1小时,然后逐渐升温至200℃并反应2小时,自然冷却后离心分离得到固体;将该固体加入至苯甲酸和硅烷耦合剂的混合液中,其中苯甲酸和硅烷耦合剂的组分占比按重量份数计为1:10,最终干燥,获得改性纳米氧化铝颗粒。
S2、准备正硅酸乙酯、无水乙醇和去离子水,按体积比,正硅酸乙酯:无水乙醇:去离子水为1:5:3,混合后,搅拌10min,然后加入硫酸,调节pH为3,搅拌20min,然后再加入氨水,调节pH为7,得到溶胶溶液;
向溶胶溶液加入改性纳米氧化锌颗粒和改性纳米氧化铝颗粒,溶胶溶液与改性纳米氧化锌颗粒和改性纳米氧化铝颗粒的重量份数比为10:1:1,并放入真空罐中,真空压强为-60kPa、温度为150℃,在搅拌条件下反应5.5h,得到水凝胶;
放入冷冻干燥箱中,在-20℃下冷冻3h,然后在-60℃下冷冻3h,即得气凝胶粉末。
S3、所述改性纳米银颗粒和气凝胶粉末为原料、以聚乳酸-羟基乙酸共聚物为载体材料、通过乳化溶剂挥发法制备得到半成品抗菌抗病毒粉末;其中改性纳米银颗粒、气凝胶粉末和聚乳酸-羟基乙酸共聚物的重量份数比1:2:5;
将聚乳酸-羟基乙酸共聚物、纳米银及气凝胶粉末加入丙酮中超声溶解,得内油相,再加入液体石蜡与司盘80搅拌混合,其中液体石蜡与司盘80的体积质量比为1mL∶15mg,得外油相;采用注射器吸取内油相,于6℃下边滴加至外油相中边搅拌使乳化,滴加结束后,继续冰浴固化2h,然后于室温下固化2h,再去除残留的有机溶剂,经离心、过筛、洗涤后,将沉淀物冻干制备得到半成品抗菌抗病毒粉末。
S4:按醋酸:壳聚糖:海藻酸钠=7:2:1的质量比,配制包覆溶液;将步骤S3中获得的半成品抗菌抗病毒粉末浸入包覆溶液中,搅拌均匀,然后离心分离干燥后获得成品抗菌抗病毒粉末。
实施例2:
一种口罩用无纺布的处理工艺,包括以下步骤:
一、将无纺布浸入稀液池中,浸泡3分钟,稀液池中盛放有抗菌液;
二、将浸液后的无纺布通过沥水胶辊进行沥水处理;
三、经过沥水处理的无纺布通过烘干机进行烘干处理,烘干温度为110℃;
四、烘干处后的无纺布进行卷绕包装;
其中,抗菌液包括抗菌抗病毒原料和净化水,抗菌抗病毒原料和纯净水的重量占比为1比15;抗菌抗病毒原料由抗菌抗病毒粉末8份、食用胶18份、纯净水100份混合均匀后获得。
所述抗菌抗病毒原料的制备工艺包括以下步骤:
S1-1、制备改性纳米银颗粒;
采用柠檬酸盐和硝酸银进行加热回流反应,再经过冷却、超滤获得纳米银颗粒,再加入质量百分比浓度为20%巯基丙酸溶液中进行改性表面处理,最终超滤获得改性纳米银颗粒;其中,纳米银颗粒与巯基丙酸溶液的重量分数比为1:100;
S1-2、制备改性纳米氧化锌颗粒:
将饱和氨水溶液和硫酸锌溶液按照体积比2:1进行混合,搅拌均匀后,超声处理,获得混合液,其中硫酸锌溶液的浓度为2mol/L;然后在混合液中加入木质素磺酸钠充分搅拌均匀,其中木质素磺酸钠的加入量为混合液重量的2%;再通过湿法研磨得到浆料,最终进行干燥处理,获得改性纳米氧化锌颗粒;
S1-3、制备改性纳米氧化铝颗粒:
将氯化铝加入到三乙二醇中,其重量份数比为1:5,搅拌均匀,然后再加入质量百分比浓度为15%的NaOH水溶液,NaOH和氯化铝的摩尔比为1:2,并在28℃的温度条件下搅拌1小时,然后逐渐升温至205℃并反应2.5小时,自然冷却后离心分离得到固体;将该固体加入至苯甲酸和硅烷耦合剂的混合液中,其中苯甲酸和硅烷耦合剂的组分占比按重量份数计为1:10,最终干燥,获得改性纳米氧化铝颗粒。
S2、准备正硅酸乙酯、无水乙醇和去离子水,按体积比,正硅酸乙酯:无水乙醇:去离子水为1:5:3,混合后,搅拌10min,然后加入硫酸,调节pH为3.5,搅拌25min,然后再加入氨水,调节pH为7.5,得到溶胶溶液;
向溶胶溶液加入改性纳米氧化锌颗粒和改性纳米氧化铝颗粒,溶胶溶液与改性纳米氧化锌颗粒和改性纳米氧化铝颗粒的重量份数比为10:1:1,并放入真空罐中,真空压强为-60kPa、温度为150℃,在搅拌条件下反应5.5h,得到水凝胶;
放入冷冻干燥箱中,在-20℃下冷冻3.5h,然后在-60℃下冷冻3.5h,即得气凝胶粉末。
S3、所述改性纳米银颗粒和气凝胶粉末为原料、以聚乳酸-羟基乙酸共聚物为载体材料、通过乳化溶剂挥发法制备得到半成品抗菌抗病毒粉末;其中改性纳米银颗粒、气凝胶粉末和聚乳酸-羟基乙酸共聚物的重量份数比1:2:5;
将聚乳酸-羟基乙酸共聚物、纳米银及气凝胶粉末加入丙酮中超声溶解,得内油相,再加入液体石蜡与司盘80搅拌混合,其中液体石蜡与司盘80的体积质量比为1mL:15mg,得外油相;采用注射器吸取内油相,于6℃下边滴加至外油相中边搅拌使乳化,滴加结束后,继续冰浴固化2h,然后于室温下固化2h,再去除残留的有机溶剂,经离心、过筛、洗涤后,将沉淀物冻干制备得到半成品抗菌抗病毒粉末。
S4:按醋酸:壳聚糖:海藻酸钠=7:2:1的质量比,配制包覆溶液;将步骤S3中获得的半成品抗菌抗病毒粉末浸入包覆溶液中,搅拌均匀,然后离心分离干燥后获得成品抗菌抗病毒粉末。
实施例3:
一种口罩用无纺布的处理工艺,包括以下步骤:
一、将无纺布浸入稀液池中,浸泡5分钟,稀液池中盛放有抗菌液;
二、将浸液后的无纺布通过沥水胶辊进行沥水处理;
三、经过沥水处理的无纺布通过烘干机进行烘干处理,烘干温度为120℃;
四、烘干处后的无纺布进行卷绕包装;
其中,抗菌液包括抗菌抗病毒原料和净化水,抗菌抗病毒原料和纯净水的重量占比为1比15;抗菌抗病毒原料由抗菌抗病毒粉末5份、食用胶18份、纯净水100份混合均匀后获得。
所述抗菌抗病毒原料的制备工艺包括以下步骤:
S1-1、制备改性纳米银颗粒;
采用柠檬酸盐和硝酸银进行加热回流反应,再经过冷却、超滤获得纳米银颗粒,再加入质量百分比浓度为20%巯基丙酸溶液中进行改性表面处理,最终超滤获得改性纳米银颗粒;其中,纳米银颗粒与巯基丙酸溶液的重量分数比为1:100;
S1-2、制备改性纳米氧化锌颗粒:
将饱和氨水溶液和硫酸锌溶液按照体积比2:1进行混合,搅拌均匀后,超声处理,获得混合液,其中硫酸锌溶液的浓度为2mol/L;然后在混合液中加入木质素磺酸钠充分搅拌均匀,其中木质素磺酸钠的加入量为混合液重量的2%;再通过湿法研磨得到浆料,最终进行干燥处理,获得改性纳米氧化锌颗粒;
S1-3、制备改性纳米氧化铝颗粒:
将氯化铝加入到三乙二醇中,其重量份数比为1:5,搅拌均匀,然后再加入质量百分比浓度为15%的NaOH水溶液,NaOH和氯化铝的摩尔比为1:2,并在30℃的温度条件下搅拌1小时,然后逐渐升温至200-210℃并反应3小时,自然冷却后离心分离得到固体;将该固体加入至苯甲酸和硅烷耦合剂的混合液中,其中苯甲酸和硅烷耦合剂的组分占比按重量份数计为1:10,最终干燥,获得改性纳米氧化铝颗粒。
S2、准备正硅酸乙酯、无水乙醇和去离子水,按体积比,正硅酸乙酯:无水乙醇:去离子水为1:5:3,混合后,搅拌10min,然后加入硫酸,调节pH为4,搅拌20-30min,然后再加入氨水,调节pH为8,得到溶胶溶液;
向溶胶溶液加入改性纳米氧化锌颗粒和改性纳米氧化铝颗粒,溶胶溶液与改性纳米氧化锌颗粒和改性纳米氧化铝颗粒的重量份数比为10:1:1,并放入真空罐中,真空压强为-60kPa、温度为150℃,在搅拌条件下反应6h,得到水凝胶;
放入冷冻干燥箱中,在-20℃下冷冻4h,然后在-60℃下冷冻4h,即得气凝胶粉末;
S3、所述改性纳米银颗粒和气凝胶粉末为原料、以聚乳酸-羟基乙酸共聚物为载体材料、通过乳化溶剂挥发法制备得到半成品抗菌抗病毒粉末;其中改性纳米银颗粒、气凝胶粉末和聚乳酸-羟基乙酸共聚物的重量份数比1:2:5;
将聚乳酸-羟基乙酸共聚物、纳米银及气凝胶粉末加入丙酮中超声溶解,得内油相,再加入液体石蜡与司盘80搅拌混合,其中液体石蜡与司盘80的体积质量比为1mL∶15mg,得外油相;采用注射器吸取内油相,于6℃下边滴加至外油相中边搅拌使乳化,滴加结束后,继续冰浴固化2h,然后于室温下固化2h,再去除残留的有机溶剂,经离心、过筛、洗涤后,将沉淀物冻干制备得到半成品抗菌抗病毒粉末。
S4:按醋酸:壳聚糖:海藻酸钠=7:2:1的质量比,配制包覆溶液;将步骤S3中获得的半成品抗菌抗病毒粉末浸入包覆溶液中,搅拌均匀,然后离心分离干燥后获得成品抗菌抗病毒粉末。
分别采用上述实施例1、实施例2和实施例3处理后的无纺布生产口罩,口罩的生产方式与现有一次性医用口罩生产方式一样,只是将处理后的抗菌抗病毒无纺布作为口罩外层,然后通过具有实施例1、实施例2和实施例3制得无纺布的口罩各分别随机抽取8只合格品,共24只合格品,委托广东省微生物分析检测中心按照ISO 18184:2019(E)中规定的方法进行抗病毒活性试验,试验结果如下表1所示:
另分别随机抽取8只合格品,共24只合格品,委托广东省微生物分析检测中心按照GB/T 20944.3-200振荡法进行抗菌性能试验,试验结果如下表2所示:
上述实施例仅为本发明的较佳实施例,并非依此限制本发明的保护范围,故:凡依本发明的结构、形状、原理所做的等效变化,均应涵盖于本发明的保护范围之内。
Claims (3)
1.一种口罩用无纺布的处理工艺,其特征在于:包括以下步骤:
一、将无纺布浸入稀液池中,浸泡2-5分钟,稀液池中盛放有抗菌液;
二、将浸液后的无纺布通过沥水胶辊进行沥水处理;
三、经过沥水处理的无纺布通过烘干机进行烘干处理,烘干温度为100-120℃;
四、烘干后的无纺布进行卷绕包装;
其中,抗菌液包括抗菌抗病毒原料和净化水,抗菌抗病毒原料和净化水的重量占比为1比15-25;
所述抗菌抗病毒原料由抗菌抗病毒粉末5-10份、食用胶18份、纯净水100份混合均匀后获得;
所述抗菌抗病毒粉末的制备工艺包括以下步骤:
S1、制备改性纳米银颗粒、改性纳米氧化锌颗粒和改性纳米氧化铝颗粒;
S2、准备正硅酸乙酯、无水乙醇和去离子水,按体积比,正硅酸乙酯:无水乙醇:去离子水为1:5:3,混合后,搅拌10min,然后加入硫酸,调节pH为3-4,搅拌20-30min,然后再加入氨水,调节pH为7-8,得到溶胶溶液;
向溶胶溶液加入改性纳米氧化锌颗粒和改性纳米氧化铝颗粒,并放入真空罐中,真空压强为-60kPa、温度为150℃,在搅拌条件下反应5-6h,得到水凝胶;
放入冷冻干燥箱中,在-20℃下冷冻3-4h,然后在-60℃下冷冻3-4h,即得气凝胶粉末;
S3、所述改性纳米银颗粒和气凝胶粉末为原料、以聚乳酸-羟基乙酸共聚物为载体材料、通过乳化溶剂挥发法制备得到半成品抗菌抗病毒粉末;
S4:按醋酸:壳聚糖:海藻酸钠=7:2:1的质量比,配制包覆溶液;将步骤S3中获得的半成品抗菌抗病毒粉末浸入包覆溶液中,搅拌均匀,然后离心分离干燥后获得成品抗菌抗病毒粉末;
所述改性纳米银颗粒的制备方法为:采用柠檬酸盐和硝酸银溶液进行加热回流反应,再经过冷却、超滤获得纳米银颗粒,再加入巯基丙酸溶液中进行改性表面处理,最终超滤获得改性纳米银颗粒;
所述改性纳米氧化锌颗粒的制备步骤包括:
将饱和氨水溶液和硫酸锌溶液按照体积比2:1进行混合,搅拌均匀后,超声处理,获得混合液,其中硫酸锌溶液的浓度为2mol/L;然后在混合液中加入木质素磺酸钠充分搅拌均匀,其中木质素磺酸钠的加入量为混合液重量的2%;再通过湿法研磨得到浆料,最终进行干燥处理,获得改性纳米氧化锌颗粒;
所述改性纳米氧化铝颗粒的制备步骤包括:
将氯化铝加入到三乙二醇中,搅拌均匀,然后再加入NaOH水溶液,并在25-30℃的温度条件下搅拌1小时,然后逐渐升温至200-210℃并反应2-3小时,自然冷却后离心分离得到固体;将该固体加入至苯甲酸和硅烷耦合剂的混合液中,其中苯甲酸和硅烷耦合剂的组分占比按重量份数计为1:10,最终干燥,获得改性纳米氧化铝颗粒。
2.一种根据权利要求1所述一种口罩用无纺布的处理工艺制得的抗菌抗病毒无纺布。
3.一种抗菌抗病毒口罩,含有权利要求2所述的抗菌抗病毒无纺布。
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