CN113981684B - 一种高吸水抑菌性的医用纱布制备方法 - Google Patents
一种高吸水抑菌性的医用纱布制备方法 Download PDFInfo
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- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims abstract description 51
- 235000002949 phytic acid Nutrition 0.000 claims abstract description 50
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Abstract
本发明公开了一种高吸水、同时具有抑菌功能的医用纱布的制备方法，包括以下步骤：（1）配制一定浓度的植酸或植酸盐水溶液，然后将调节pH值；（2）将医用纱布浸入上述溶液中；（3）将带有植酸溶液的医用纱布取出，低温干燥除水，然后真空条件下高温酯化；（4）将反应后的医用纱布用去离子水多次洗涤（或酸化处理后洗涤），干燥得到植酸接枝的医用纱布。本发明得到的植酸接枝修饰的医用纱布，不仅可以提高医用纱布的吸水性能，还可以利用植酸的抑菌性，赋予医用纱布良好的抑菌性能。
Description
技术领域
本发明涉及纤维素改性技术领域，特别是涉及一种高吸水抑菌性医用纱布制备方法。
背景技术
临床中常用的医用纱布普遍存在吸湿性差、无抗菌性易感染等问题。因此对传统的医用纱布改性是十分必要的。如为提高医用纱布的吸水性，对棉纤维进行氧化，使结构中的羟基转化为羧基结构，从而提高吸水性。也可以与高吸水性材料混纺，获得高吸水医用纱布。为提高医用纱布的抗菌性，文献报道的主要方法是引入纳米银、与壳聚糖混纺等方法使医用纱布获得抑菌性能。
发明内容
本发明的目的在于提供一种高吸水抑菌性医用纱布制备方法，应用此方法制备的改性医用纱布同时具有高吸水和抑菌性的特征，方法简单。采用的植酸和植酸盐来源于植物，具有很好的安全性。
为了实现上述目的，本发明采用如下技术方案：
一种高吸水抑菌性医用纱布制备方法，所述的高吸水性和抑菌性，是医用纱布通过与植酸或植酸盐接枝反应而获得。其中植酸或植酸盐占医用纱布质量的5-50%，制备方法主要包括以下步骤：
（1）植酸盐水溶液的配置
将植酸或可溶性植酸盐配成一定水溶液，混匀后，调节溶液的pH值至4.0~7.5；
（2）医用纱布浸润及除水
将步骤（1）所制备的植酸或植酸盐溶液，加入医用纱布，其中植酸或植酸盐为医用纱布质量的5-50%，浸润10~60min，将医用纱布取出，30-60℃常压干燥除水。
（3）干法反应
将步骤（2）脱水得到的表面带有植酸或植酸盐的医用纱布，在1-50KPa的压强条件下， 50-120℃温度条件下,干法反应2-10h。
（4）产品洗涤及干燥
将步骤（3）得到的医用纱布用去离子水若干次洗涤后干燥，干燥温度为50-100℃，既得本产品。
或采用将步骤（3）得到的医用纱布加去离子水，用酸调节pH值至2-3，若干次洗涤后干燥，干燥温度50-100℃，既得本产品。
优选的，所述植酸盐为植酸钠、植酸钾、植酸铵中的一种或多种。
优选的，所述步骤（1）中通过酸液或者碱液调节pH值至4.0-7.5。
优选的，所述酸液为稀盐酸或稀硫酸或醋酸，所述碱液为氢氧化钠或碳酸钠或碳酸氢钠或氨水水溶液。
与现有医用纱布改性技术相比，本发明的有益效果为：通过植酸或植酸盐的引入，利用植酸的亲水性和抑菌性，使医用纤维同时获得高吸水性和抑菌性，干法反应操作过程简单。且植酸来源于天然植物原料，是一种安全可靠的改性剂，整个反应过程除调节pH值用少量酸和碱，未使用其它有机溶剂和有毒有害试剂，容易工业化生产。
附图说明
图1为本发明医用纱布的红外光谱图。
具体实施方式
下面结合具体实施例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做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1：
一种高吸水抑菌性医用纱布制备方法，具体步骤如下：
将0.5g植酸溶于40ml去离子水，超声混匀，用碳酸钠水溶液调节pH至4.0，加入10.0g医用纱布浸润10min。然后将浸润后的医用纱布置于烘箱中，在30℃干燥。
将干燥后的纱布（表面带有植酸钠）放入真空干燥箱中，在50℃、1KPa的压力下干法反应10h。将反应得到的医用纱布用去离子水多次洗涤，至残留植酸盐完全去除后，50℃温度下干燥，既得最终产品。
实施例2
一种高吸水抑菌性医用纱布的制备方法，具体步骤如下：
取植酸钠5.0g，溶于40ml去离子水，用稀醋酸调节pH为7.5。取10.0g医用纱布浸润60min，将浸润的医用纱布在60℃下干燥除水。
将干燥医用纱布（表面带有植酸钠）真空高温干法反应，反应温度为120℃，反应压力50KPa，反应2h终止反应，将反应得到的纱布加入去离子水，然后调节pH至3，多次用去离子水洗涤，60℃温度下干燥，既得植酸接枝医用纱布。
实施例3
一种高吸水抑菌性医用纱布的制备方法，具体步骤如下：
取植酸铵2.0g，溶于40ml去离子水，用稀盐酸调节pH为5.0。取10.0g医用纱布浸润10min，将浸润的医用纱布在50℃下干燥除水。
将干燥医用纱布（表面带有植酸铵）真空高温干法反应，反应温度为100℃，反应压力5KPa，反应5h终止反应，将反应得到的纱布加入去离子水，然后调节pH至2，多次用去离子水洗涤，70℃温度下干燥，既得植酸接枝医用纱布。
实施例4
一种高吸水抑菌性医用纱布的制备方法，具体步骤如下：
取植酸钾1.0g，溶于40ml去离子水，用稀硫酸调节pH为4.0。取10.0g医用纱布浸润30min，将浸润的医用纱布在55℃下干燥除水。
将干燥医用纱布（表面带有植酸钾）真空高温干法反应，反应温度为100℃，反应压力5KPa，反应5h终止反应，将反应得到的纱布用去离子水多次洗涤，60℃温度下干燥，既得植钾酸接枝医用纱布。
实施例5
一种高吸水抑菌性医用纱布的制备方法，具体步骤如下：
取植酸3.0g，溶于40ml去离子水，用氨水水溶液水溶液调节pH为6.0。取10.0g医用纱布浸润40min，将浸润的医用纱布在50℃下干燥除水。
将干燥医用纱布（表面带有植酸铵）真空高温干法反应，反应温度为80℃，反应压力10KPa，反应4h终止反应，将反应得到的纱布用去离子水多次洗涤，60℃温度下干燥，既得植酸铵接枝医用纱布。
上述实施例的实验吸水率如下表所示：
附表1
| 产品名称 | 原料医用纱布 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 |
| 吸水率 | 4.56±0.07 | 5.78±0.10 | 10.26±0.09 | 8.21±0.08 | 7.56±0.09 | 8.80±0.10 |
并参照图1的医用纱布的红外光谱图
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。
Claims (5)
1.一种具有高吸水抑菌性能的医用纱布的制备方法，其特征在于：其包括以下步骤：
（1）将植酸或可溶性植酸盐配成一定水溶液，混匀后，调节溶液的pH值至4.0~7.5；
（2）将步骤（1）所制备的植酸或植酸盐溶液，加入医用纱布，其中植酸或植酸盐为医用纱布质量的5-50%，浸润10~60min，将医用纱布取出，30-60℃常压干燥除水；
（3）将步骤（2）脱水得到的表面带有植酸或植酸盐的医用纱布，在1-50KPa的压强条件下， 50-120℃温度条件下,干法反应2-10h；
（4）将步骤（3）得到的医用纱布用去离子水若干次洗涤后干燥，干燥温度为50-100℃，既得本产品。
2.根据权利要求1所述的一种具有高吸水抑菌性能的医用纱布的制备方法，其特征在于：步骤（4）为：将步骤（3）得到的医用纱布加去离子水，用酸调节pH值至2-3，若干次洗涤后干燥，干燥温度50-100℃，既得本产品。
3.根据权利要求1-2任意一项所述的一种具有高吸水抑菌性能的医用纱布的制备方法，其特征在于：所述植酸盐为植酸钠、植酸钾、植酸铵中的一种或多种。
4.根据权利要求3所述的一种具有高吸水抑菌性能的医用纱布的制备方法，其特征在于：所述步骤（1）中通过酸液或者碱液调节pH值至4.0-7.5。
5.根据权利要求4所述的一种具有高吸水抑菌性能的医用纱布的制备方法，其特征在于：所述酸液为稀盐酸或稀硫酸或醋酸，所述碱液为氢氧化钠或碳酸钠或碳酸氢钠或氨水水溶液。
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