CN106237713A - 一种加湿器用无机粉体协同抗菌改性混合纤维滤料 - Google Patents

一种加湿器用无机粉体协同抗菌改性混合纤维滤料 Download PDF

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CN106237713A
CN106237713A CN201610632285.XA CN201610632285A CN106237713A CN 106237713 A CN106237713 A CN 106237713A CN 201610632285 A CN201610632285 A CN 201610632285A CN 106237713 A CN106237713 A CN 106237713A
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朱永胜
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ANHUI GALAXYLA PURIFICATION ENGINEERING Co Ltd
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Abstract

本发明公开了一种加湿器用无机粉体协同抗菌改性混合纤维滤料，由下列重量份的原料制成：氧化锌0.5‑0.55、二氧化钛0.5‑0.52、氧化镧0.09‑0.1、无水乙醇适量、磷酸钠0.1‑0.12、硅酸钠0.8‑1、浓度为1wt%的盐酸适量、去离子水适量、PET树脂20‑22、壳聚糖纤维48‑50、黏胶纤维32‑34、丙烯酸树脂9‑10、油酸三乙醇胺0.8‑1。本发明过滤材料用在加湿器中，吸水性能优异，能够在等量耗能的情况下增加加湿量，同时可以改善空气质量。

Description

一种加湿器用无机粉体协同抗菌改性混合纤维滤料
技术领域
本发明涉及过滤材料技术领域，尤其涉及一种加湿器用无机粉体协同抗菌改性混合纤维滤料。
背景技术
空气加湿器的应用十分广泛，常见的有纺织行业、塑料行业、造纸行业、印刷行业、烟草行业、电子行业、喷涂行业、火药行业、保鲜储藏、暖通行业、养殖业、种植业、人工造雾、人工景观等。空气加湿器滤材不仅能提高雾化效果，还能过滤掉水中的微细杂质，利于人体健康，同时能够延长加湿器的使用寿命。提高过滤材料的高吸水性，可使加湿设备在同样水压和时间内释放更多水雾，增大加湿度及工作效率。目前，关于空气加湿器的研究主要集中在电池燃料与控制方面，对其滤材方面研究见报较少。常用的空气加湿器中过滤与吸水是两个不同的部件。部分加湿器同时拥有过滤与吸湿吸水功能，比如黏胶－棉－黏胶吸水材料，采用在吸水棉网外层包裹有黏胶非织造布的结构，整个材料保留了良好的吸水性能，能吸附残留污垢，虽然有一定的过滤功能，但其硬度不够，所用环境受限制且寿命短。
《水刺型空气加湿器滤材的亲水性改性研究》一文中模拟湿膜加湿原理， 在具有湿膜加湿器优越性的同时改善其加湿量，选用黏胶/PET水刺非织造布为基体材料，使用亲水基GL与丙烯酸树脂的混合溶液对其进行浸渍处理，得到预期的加湿器滤材，亲水剂改性后的滤材吸水率恢复率优异，反复吸水率大，耐用性能优良，硬挺度高，重复使用吸水性能损失小。文中虽然对加湿器滤材的吸水性能进行了改性，改善了加湿量，但是由于水中微尘、杂质、细菌可能导致加湿器的使用效果，这就需要对加湿器滤材的过滤性能进行改性，制备过滤、吸水、硬度兼优的高品质滤材。
发明内容
本发明目的就是为了弥补已有技术的缺陷，提供一种加湿器用无机粉体协同抗菌改性混合纤维滤料。
本发明是通过以下技术方案实现的：
一种加湿器用无机粉体协同抗菌改性混合纤维滤料，由下列重量份的原料制成：氧化锌0.5-0.55、二氧化钛0.5-0.52、氧化镧0.09-0.1、无水乙醇适量、磷酸钠0.1-0.12、硅酸钠0.8-1、浓度为1wt%的盐酸适量、去离子水适量、PET树脂20-22、壳聚糖纤维48-50、黏胶纤维32-34、丙烯酸树脂9-10、油酸三乙醇胺0.8-1。
所述一种加湿器用无机粉体协同抗菌改性混合纤维滤料，由以下具体步骤制成：
（1）将二氧化钛、氧化镧混合，加入10-12倍量的无水乙醇中，搅拌至分散均匀，边搅拌加热至80-90℃蒸发除去乙醇，然后将余下的固体放入500-550℃的马弗炉中煅烧1-2小时，保温30-40分钟后取出，冷却后粉碎，过300目筛待用；将上述粉体与氧化锌、磷酸钠、硅酸钠混合，加入总量3-5倍量的去离子水，加热至50-60℃，超声振荡90-120分钟，边超声振荡边用浓度为1wt%的盐酸调节pH为7-8，继续超声30-40分钟后离心分离，将所得沉淀物在120-130℃下干燥至恒重，冷却、研磨，过400目筛，得改性混合粉末；
（2）将PET树脂与步骤（1）得到的改性混合粉末混合，放入双螺杆挤出机中挤出造粒（控制热辊温度90-130℃，螺杆温度270-290℃），得到改性PET母粒；将改性PET母粒放入纺丝牵伸FDY机中进行熔融纺丝（纺丝速度为1000m/min，拉伸速度20Om/min），得到改性PET纤维；
（3）将步骤（2）得到的改性PET纤维与壳聚糖纤维、黏胶纤维进行混合开松，梳理，平行铺网与交叉铺网，然后将混合纤维网经过水刺机进行水刺加固（控制水刺压力为25-45Pa），最后干燥卷绕得到混纤水刺非织造布；
（4）将油酸三乙醇胺加入120-150倍量的去离子水中，搅拌均匀后加入丙烯酸树脂，以300-400转/分的速度搅拌均匀后将步骤（3）制得的混纤水刺非织造布浸渍其中，浸渍15-20分钟后取出使用压辊压轧，自然放置5-8分钟后放入烘箱中以80-90℃的温度烘干处理18-20分钟，冷却后取出，得到本发明。
本发明的优点是：本发明首先添加二氧化钛、氧化锌、氧化镧等粉体共混，三者产生协同效应，具有优异的抗菌性，还通过一系列的工艺手段将其混合粉体进行表面改性，解决了粉体团聚的现象，与PET树脂熔融共混时可以均匀的分散在树脂中，使得制成的纤维具有较好的强度，同时具有一定的抗菌性能，能够改善加湿器水务的质量。
本发明采用改性的PET纤维与壳聚糖纤维、黏胶纤维利用水刺工艺通过高压水流在纤维网上形成孔，制成非织造布作为加湿器滤材的基材，滤材纤维杂乱分布，结构疏松，使之能够更加容易捕集欲分离的粒子，同时具有良好的吸水性能，同时由于壳聚糖纤维的添加，提高了抗菌性；本发明还通过将丙烯酸树脂与油酸三乙醇胺进行复配制成浸渍液对基材非织造布进行改性整理，不仅能够提高基材的硬挺度而且通过油酸三乙醇胺的添加，提高了滤材表面的亲水基团数量，进一步提高了吸水性能以芯吸高度，而且滤材吸水率恢复率优异，反复吸水率大，耐用性能优良，重复使用其吸水性能损失小，用在加湿器中改善了加湿量。
本发明过滤材料用在加湿器中，吸水性能优异，能够在等量耗能的情况下增加加湿量，同时可以改善空气质量。
具体实施方式
一种加湿器用无机粉体协同抗菌改性混合纤维滤料，由下列重量份（公斤）的原料制成：氧化锌0.5、二氧化钛0.5、氧化镧0.09、无水乙醇适量、磷酸钠0.1、硅酸钠0.8、浓度为1wt%的盐酸适量、去离子水适量、PET树脂20、壳聚糖纤维48、黏胶纤维32、丙烯酸树脂9、油酸三乙醇胺0.8。
所述一种加湿器用无机粉体协同抗菌改性混合纤维滤料，由以下具体步骤制成：
（1）将二氧化钛、氧化镧混合，加入10倍量的无水乙醇中，搅拌至分散均匀，边搅拌加热至80℃蒸发除去乙醇，然后将余下的固体放入500℃的马弗炉中煅烧1小时，保温30分钟后取出，冷却后粉碎，过300目筛待用；将上述粉体与氧化锌、磷酸钠、硅酸钠混合，加入总量3倍量的去离子水，加热至50℃，超声振荡90分钟，边超声振荡边用浓度为1wt%的盐酸调节pH为7，继续超声30分钟后离心分离，将所得沉淀物在120℃下干燥至恒重，冷却、研磨，过400目筛，得改性混合粉末；
（2）将PET树脂与步骤（1）得到的改性混合粉末混合，放入双螺杆挤出机中挤出造粒（控制热辊温度90℃，螺杆温度270℃），得到改性PET母粒；将改性PET母粒放入纺丝牵伸FDY机中进行熔融纺丝（纺丝速度为1000m/min，拉伸速度20Om/min），得到改性PET纤维；
（3）将步骤（2）得到的改性PET纤维与壳聚糖纤维、黏胶纤维进行混合开松，梳理，平行铺网与交叉铺网，然后将混合纤维网经过水刺机进行水刺加固（控制水刺压力为25Pa），最后干燥卷绕得到混纤水刺非织造布；
（4）将油酸三乙醇胺加入120倍量的去离子水中，搅拌均匀后加入丙烯酸树脂，以300转/分的速度搅拌均匀后将步骤（3）制得的混纤水刺非织造布浸渍其中，浸渍15分钟后取出使用压辊压轧，自然放置5分钟后放入烘箱中以80℃的温度烘干处理18分钟，冷却后取出，得到本发明。
对本发明滤材进行测试，表观吸水率为11.2g/m2，芯吸高度为106.25mm，抗弯刚度大于11cN•cm。

Claims (2)

1.一种加湿器用无机粉体协同抗菌改性混合纤维滤料，其特征在于，由下列重量份的原料制成：氧化锌0.5-0.55、二氧化钛0.5-0.52、氧化镧0.09-0.1、无水乙醇适量、磷酸钠0.1-0.12、硅酸钠0.8-1、浓度为1wt%的盐酸适量、去离子水适量、PET树脂20-22、壳聚糖纤维48-50、黏胶纤维32-34、丙烯酸树脂9-10、油酸三乙醇胺0.8-1。
2.根据权利要求1所述一种加湿器用无机粉体协同抗菌改性混合纤维滤料，其特征在于，由以下具体步骤制成：
（1）将二氧化钛、氧化镧混合，加入10-12倍量的无水乙醇中，搅拌至分散均匀，边搅拌加热至80-90℃蒸发除去乙醇，然后将余下的固体放入500-550℃的马弗炉中煅烧1-2小时，保温30-40分钟后取出，冷却后粉碎，过300目筛待用；将上述粉体与氧化锌、磷酸钠、硅酸钠混合，加入总量3-5倍量的去离子水，加热至50-60℃，超声振荡90-120分钟，边超声振荡边用浓度为1wt%的盐酸调节pH为7-8，继续超声30-40分钟后离心分离，将所得沉淀物在120-130℃下干燥至恒重，冷却、研磨，过400目筛，得改性混合粉末；
（2）将PET树脂与步骤（1）得到的改性混合粉末混合，放入双螺杆挤出机中挤出造粒（控制热辊温度90-130℃，螺杆温度270-290℃），得到改性PET母粒；将改性PET母粒放入纺丝牵伸FDY机中进行熔融纺丝（纺丝速度为1000m/min，拉伸速度20Om/min），得到改性PET纤维；
（3）将步骤（2）得到的改性PET纤维与壳聚糖纤维、黏胶纤维进行混合开松，梳理，平行铺网与交叉铺网，然后将混合纤维网经过水刺机进行水刺加固（控制水刺压力为25-45Pa），最后干燥卷绕得到混纤水刺非织造布；
（4）将油酸三乙醇胺加入120-150倍量的去离子水中，搅拌均匀后加入丙烯酸树脂，以300-400转/分的速度搅拌均匀后将步骤（3）制得的混纤水刺非织造布浸渍其中，浸渍15-20分钟后取出使用压辊压轧，自然放置5-8分钟后放入烘箱中以80-90℃的温度烘干处理18-20分钟，冷却后取出，得到本发明。
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