CN112409691A - 一种抗菌熔喷料及抗菌熔喷滤芯及其制备方法 - Google Patents
一种抗菌熔喷料及抗菌熔喷滤芯及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种抗菌熔喷料及抗菌熔喷滤芯，涉及净水机滤芯技术领域。本发明的抗菌熔喷料按质量分数计算包括：PP树脂90％～98％；抗菌剂2％～10％；抗菌剂为纳米氧化锌或氧化锌晶须；相容剂2％～4％；分散剂0.2～2％；同时抗菌熔喷滤芯，由抗菌熔喷料制备获得。本发明通过将纳米氧化锌或氧化锌晶须作为抗菌剂制备得到抗菌熔喷滤芯，解决了现有净水机长期抗菌效果差的问题。同时，避免了饮水机中其它滤芯受到污染，延长了更换滤芯的周期，有效的降低了维护成本。
Description
技术领域
本发明属于净水机滤芯技术领域，特别是涉及一种抗菌熔喷料及抗菌熔喷滤芯及其制备方法。
背景技术
人们平时所讲的净水机，一般是指用作家庭使用的小型净化机。随着中国生活水平的提高，净水机为我们日常家庭必不可少的家电，它一般连接在自来水的出水端后面，为人们的生活饮用水以及厨电用水等提供过滤保障。
净水机滤芯组合一般为前置滤芯、RO膜滤芯以及活性炭后置滤芯，前置滤芯一般为PP棉与活性炭滤芯组合而成，对于净水机来说，PP滤芯是必不可少的滤芯部分，主要是初过滤，阻隔水中初颗粒杂质，如污泥及悬浮颗粒等。PP滤芯分为无纺布与熔喷布滤芯，由于熔喷PP孔径小，更能阻绝粒径更小的固体物质而被净水机广泛应用。
随着人们生活质量的提高，净水机的功能要求越来越高，特别是净水机的杀菌功能也备受关注，特别在2020疫情期间，产品抗菌功能是人们最需要的功能需求。目前净水机的杀菌主要为银离子与紫外线杀菌进行，但是这两种杀菌功能均有自己的缺陷，银离子达到一定的浓度才具有抑菌作用，同时银离子是一种重金属离子，如果银离子的浓度不稳定，就会给我们的健康带来威胁。另外紫外灯从充电到杀菌的程度需要时间，不能保证全程灭菌的效果；同时紫外灯在使用结束时会有老化，即光的强度逐渐减弱，因此杀菌消毒效果也会减弱，使得长期抗菌效果较差。
并且，现有的PP熔喷滤芯作为净水器的必备的最前置滤芯，主要是阻隔自来水中的水中泥沙，铁锈，水藻等固体物质。但由于没有抗菌杀菌特点，使得细菌等物质在前置滤芯中没有得到过滤，使得PP熔喷滤芯以及其它滤芯材料备受细菌接触，造成了滤芯材料的污染以及换芯周期的缩短，大大提高了用户的更换滤芯和维护成本。
发明内容
本发明的目的在于提供一种抗菌熔喷料及抗菌熔喷滤芯，通过将纳米氧化锌或氧化锌晶须作为抗菌剂制备得到抗菌熔喷滤芯，解决了现有净水机长期抗菌效果差的问题。同时，避免了饮水机中其它滤芯受到污染，延长了更换滤芯的周期，有效的降低了维护成本。
为解决上述技术问题，本发明是通过以下技术方案实现的：
本发明为一种抗菌熔喷料，按质量分数计算包括：
进一步地，所述PP树脂的熔指为1200～1800g/10min。
进一步地，所述相容剂为聚丙烯接枝马来酸酐。
进一步地，所述分散剂为硬脂酸、聚乙烯蜡和液体石蜡中的一种或几种。
一种抗菌熔喷滤芯，所述抗菌熔喷滤芯由上述的抗菌熔喷料制备获得。
一种抗菌熔喷滤芯的制备方法，包括以下步骤：
步骤一：将配方量的抗菌剂、相容剂与分散剂混合并搅拌均匀，得到助剂混合物；
步骤二：将配方量的PP树脂放入混料机中，搅拌2～5分钟，再将步骤一得到的助剂混合物加入PP树脂中，充分搅拌8～20分钟，得到抗菌PP熔喷粉体混合物；
步骤三：将得到的抗菌PP熔喷粉体混合物挤出造粒，即得抗菌熔喷料；
步骤四：将抗菌熔喷料使用螺杆挤压机切片，再经过输送段挤压并在160～185℃熔融；并通过杂质过滤，纺丝泵计量，在200～315℃制得高温熔体，并通过模头喷丝成纤维丝，且将制得的纤维丝纺丝成纤网；
步骤六：将纤网卷绕成管状，经过分段切断，得到抗菌熔喷滤芯。
本发明具有以下有益效果：
本发明通过将纳米氧化锌或氧化锌晶须作为抗菌剂，制备得到抗菌熔喷滤芯，利用抗菌熔喷滤芯实现了长期抗菌效果。同时，避免了饮水机中其它滤芯受到细菌污染，有效的延长了滤芯的更换周期，从而有效的降低了饮水机更换滤芯的成本和后期维护成本。
当然，实施本发明的任一产品并不一定需要同时达到以上所述的所有优点。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
实施例1
本发明的一种抗菌熔喷料，配方包括：90g的PP树脂(山东道恩股份Z-1200)、5g的纳米氧化锌、3g的聚丙烯接枝马来酸酐和2g的聚乙烯蜡。
一种抗菌熔喷滤芯的制备方法，包括以下步骤：
步骤一：将配方量的抗菌剂纳米氧化锌、相容剂聚丙烯接枝马来酸酐与分散剂聚乙烯蜡混合并搅拌均匀，得到助剂混合物；
步骤二：将配方量的PP树脂放入混料机中，搅拌2分钟或3分钟或4分钟，再将步骤一得到的助剂混合物加入PP树脂中，充分搅拌8～20分钟，如9分钟、11分钟或15分钟，得到抗菌PP熔喷粉体混合物；
步骤三：将得到的抗菌PP熔喷粉体混合物挤出造粒，即得抗菌熔喷料；
步骤四：将抗菌熔喷料使用螺杆挤压机切片，再经过输送段挤压并在160～185℃熔融；并通过杂质过滤，纺丝泵计量，在200～315℃制得高温熔体，并通过模头喷丝成纤维丝，且将制得的纤维丝纺丝成纤网；
步骤六：将纤网卷绕成管状，经过分段切断，得到抗菌熔喷滤芯。
实施例2
本发明的一种抗菌熔喷料，配方包括：95g的PP树脂(中石化PPH-Y1500)、5g的氧化锌晶须、3.5g的聚丙烯接枝马来酸酐、2g的聚乙烯蜡。
制备方法：同实施例1。
实施例3
本发明的一种抗菌熔喷料，配方包括：98g的PP树脂(金发PP-Y1500)、6g的氧化锌晶须、2g的聚丙烯接枝马来酸酐和2g的聚乙烯蜡。
制备方法：同实施例1。
对比例
PP熔喷料的原料配方：90g的PP树脂(山东道恩股份Z-1200)、4g的相容剂聚丙烯接枝马来酸酐、2g的分散剂聚乙烯蜡，具体生产时依据产量大小放大各原料加入量。
制备方法：先将相容剂与分散剂混合并搅拌，得到助剂混合物，然后将PP树脂放入混料机中，先低速搅拌2分钟，再将助剂混合物加入后充分搅拌10分钟，得到PP熔喷粉体混合物，将所得到的粉状混合物用双螺杆塑化挤出造粒，即得PP熔喷粒料。
然后将所得到的PP熔喷料在熔喷生产线上按固定流程生产即得PP熔喷滤芯。PP熔喷滤芯工艺一般如下：料仓中投入PP粒料经过螺杆挤压机切片，再经过输送段挤压并在160～185℃熔融，再通过杂质过滤，纺丝泵计量，200～315℃加温制得高温溶体，然后经过模头喷丝成纤维丝，制得的纤维丝在接收装置网机上聚集成纤网，最后通过卷绕机卷绕成一定规格厚度的管状物，再经过分段切断制得PP滤芯。
评价方法：
1、分别对实施例1～3和对比例所得到的抗菌熔喷滤芯进行抗菌性能评价。
2、评价指标和测试方法：
环保性能的测试：抗菌防霉测试实验参照GB21551.2-2010测试标准。
测试结果如表1.性能对比所示。
表1.性能对比
防霉等级：
0级 无霉菌生长
1级 轻微霉菌生长(10％)
2级 轻度霉菌生长(10％～30％)
3级 中度霉菌生长(30％～60％)
4级 严重霉菌生长(60％～100％)。
通过实施例1～3结果可知，利用本发明抗菌熔喷料制备的抗菌熔喷滤芯材料具有很好的抗菌防霉特性，抗菌率均达到99％以上，防霉等级达到0级，从而实现了良好的长期抗菌效果。
同时，避免了饮水机中其它滤芯受到细菌污染，有效的延长了滤芯的更换周期，从而有效的降低了饮水机更换滤芯的成本和后期维护成本。
在本说明书的描述中，参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节，也不限制该发明仅为所述的具体实施方式。显然，根据本说明书的内容，可作很多的修改和变化。本说明书选取并具体描述这些实施例，是为了更好地解释本发明的原理和实际应用，从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。
Claims (6)
1.一种抗菌熔喷料，其特征在于：按质量分数计算包括：
2.根据权利要求1所述的一种抗菌熔喷料，其特征在于，所述PP树脂的熔指为1200～1800g/10min。
3.根据权利要求1所述的一种抗菌熔喷料，其特征在于，所述相容剂为聚丙烯接枝马来酸酐。
4.根据权利要求1所述的一种抗菌熔喷料，其特征在于，所述分散剂为硬脂酸、聚乙烯蜡、液体石蜡中的一种或几种。
5.一种抗菌熔喷滤芯，其特征在于，所述抗菌熔喷滤芯由权利要求1～4任意一项所述的抗菌熔喷料制备获得。
6.一种抗菌熔喷滤芯的制备方法，其特征在于，包括以下步骤：
步骤一：将配方量的抗菌剂、相容剂与分散剂混合并搅拌均匀，得到助剂混合物；
步骤二：将配方量的PP树脂放入混料机中，搅拌2～5分钟，再将步骤一得到的助剂混合物加入PP树脂中，充分搅拌8～20分钟，得到抗菌PP熔喷粉体混合物；
步骤三：将得到的抗菌PP熔喷粉体混合物挤出造粒，即得抗菌熔喷料；
步骤四：将抗菌熔喷料使用螺杆挤压机切片，再经过输送段挤压并在160～185℃熔融；并通过杂质过滤，纺丝泵计量，在200～315℃制得高温熔体，并通过模头喷丝成纤维丝，且将制得的纤维丝纺丝成纤网；
步骤六：将纤网卷绕成管状，经过分段切断，得到抗菌熔喷滤芯。
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