CN107938316A - 一种二氧化钛微胶囊整理剂及其制备方法 - Google Patents
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Abstract
本发明公开了一种二氧化钛微胶囊整理剂及其制备方法，所述整理剂呈球形或椭球形，平均粒径为5～12μm，其芯材与壁材的质量比为1:0.7～1.6；所述芯材由二氧化钛和氧化铝组成，壁材由明胶和壳聚糖组成。本发明所述整理剂能够赋予织物良好的抗菌、抗紫外线功能；本发明所述整理剂克服二氧化钛自身因比表面积大、比表能高、易团聚，使用过程中功能粒子分散困难，稳定性差的不足。
Description
技术领域
本发明属于纺织技术领域，涉及一种功能性织物的整理化合物，具体为一种二氧化钛微胶囊整理剂及其制备方法。
背景技术
光触媒材料TiO2因其光催化活性高、稳定性和耐热性好，无二次污染、无刺激性，对人体无毒及价廉等优点，成为当前最具有开发前景的绿色环保光催化材料。纳米光触媒在纤维织物上的应用，主要是为了赋予织物具有光催化的功能，获得降解VOC、除异味、抗菌、防污或自清洁性能。这种光触媒功能织物用于汽车内饰材料，以及室内装饰家纺用品，使得这些材料本身获得持久的降解VOC、净化车内和室内空气的性能。另外，也可用于服装面料，则可以获得良好的抗菌、抗紫外线功能和一定的自清洁功能。以粉体纳米TiO2的分散液对纺织品进行整理时，由于纳米粒子比表积大、比表能高，极易团聚，使用过程存在纳米粒子分散困难、整理剂稳定性差，整理后的织物耐久性性差等缺点。
发明内容
本发明的目的是：为了克服现有技术的缺陷，获得一种具有良好的抗菌、抗紫外线功能的整理剂，且克服二氧化钛自身因比表面积大、比表能高、易团聚等缺陷，本发明提供了一种二氧化钛微胶囊整理剂及其制备方法。
技术方案：一种二氧化钛微胶囊整理剂，所述整理剂呈球形或椭球形，平均粒径为5～12μm，其芯材与壁材的质量比为1:0.7～1.6；所述芯材由二氧化钛和氧化铝组成，壁材由明胶和壳聚糖组成。
优选的，所述芯材由二氧化钛和氧化铝按重量比3～7:1组成。
优选的，所述壁材由明胶和壳聚糖按重量比1～3:2～5组成。
一种二氧化钛微胶囊整理剂的制备方法，所述方法包括以下步骤：
(1)将明胶溶于去离子水中，配制成质量浓度为3.5～8％的明胶溶液；
(2)将壳聚糖溶于冰醋酸溶液中，配制成质量分数为2.5～8％的壳聚糖醋酸溶液，然后加入乳化剂、二氧化钛和氧化铝，磁力搅拌至分散均匀得到乳液；
(3)将步骤(2)得到的乳液滴加到步骤(1)获得的明胶溶液中，调节pH值为7.2～8.5，反应25～40min，再加入分散剂，搅拌均匀得到复凝乳液；
(4)将步骤(3)获得的复凝乳液置于冰水浴中降温至0～4℃，加入固化剂，固化15～45min后调节pH值6.5～7.6，再移入35～50℃温水浴中固化1.5～4h得到微胶囊乳液，将微胶囊乳液离心、取沉淀，将沉淀抽滤、干燥得到微胶囊整理剂。
优选的，所述乳化剂为吐温-80或OP-80。
优选的，所述分散剂为聚乙烯吡咯烷酮或聚乙烯醇。
优选的，所述固化剂为戊二醛、双醛淀粉或谷氨酰胺转氨酶。
有益效果：(1)本发明所述整理剂能够赋予织物良好的抗菌、抗紫外线功能；(2)本发明所述整理剂克服二氧化钛自身因比表面积大、比表能高、易团聚，使用过程中功能粒子分散困难，稳定性差的不足。
具体实施方式
实施例1
一种二氧化钛微胶囊整理剂，所述整理剂呈球形或椭球形，平均粒径为5μm，其芯材与壁材的质量比为1:0.7；所述芯材由二氧化钛和氧化铝组成，壁材由明胶和壳聚糖组成。
所述芯材由二氧化钛和氧化铝按重量比3:1组成。
所述壁材由明胶和壳聚糖按重量比1:2组成。
一种二氧化钛微胶囊整理剂的制备方法，所述方法包括以下步骤：
(1)将明胶溶于去离子水中，配制成质量浓度为3.5％的明胶溶液；
(2)将壳聚糖溶于冰醋酸溶液中，配制成质量分数为2.5％的壳聚糖醋酸溶液，然后加入乳化剂、二氧化钛和氧化铝，磁力搅拌至分散均匀得到乳液；
(3)将步骤(2)得到的乳液滴加到步骤(1)获得的明胶溶液中，调节pH值为7.2，反应25min，再加入分散剂，搅拌均匀得到复凝乳液；
(4)将步骤(3)获得的复凝乳液置于冰水浴中降温至0℃，加入固化剂，固化15min后调节pH值6.5，再移入35℃温水浴中固化1.5h得到微胶囊乳液，将微胶囊乳液离心、取沉淀，将沉淀抽滤、干燥得到微胶囊整理剂。
所述乳化剂为吐温-80。
所述分散剂为聚乙烯吡咯烷酮。
所述固化剂为戊二醛。
实施例2
一种二氧化钛微胶囊整理剂，所述整理剂呈球形或椭球形，平均粒径为9μm，其芯材与壁材的质量比为1:1.2；所述芯材由二氧化钛和氧化铝组成，壁材由明胶和壳聚糖组成。
所述芯材由二氧化钛和氧化铝按重量比5:1组成。
所述壁材由明胶和壳聚糖按重量比2:3组成。
一种二氧化钛微胶囊整理剂的制备方法，所述方法包括以下步骤：
(1)将明胶溶于去离子水中，配制成质量浓度为6％的明胶溶液；
(2)将壳聚糖溶于冰醋酸溶液中，配制成质量分数为5.5％的壳聚糖醋酸溶液，然后加入乳化剂、二氧化钛和氧化铝，磁力搅拌至分散均匀得到乳液；
(3)将步骤(2)得到的乳液滴加到步骤(1)获得的明胶溶液中，调节pH值为7.6，反应30min，再加入分散剂，搅拌均匀得到复凝乳液；
(4)将步骤(3)获得的复凝乳液置于冰水浴中降温至2℃，加入固化剂，固化30min后调节pH值7.0，再移入40℃温水浴中固化2.5h得到微胶囊乳液，将微胶囊乳液离心、取沉淀，将沉淀抽滤、干燥得到微胶囊整理剂。
所述乳化剂为OP-80。
所述分散剂为聚乙烯醇。
所述固化剂为双醛淀粉。
实施例3
一种二氧化钛微胶囊整理剂，所述整理剂呈球形或椭球形，平均粒径为12μm，其芯材与壁材的质量比为1:1.6；所述芯材由二氧化钛和氧化铝组成，壁材由明胶和壳聚糖组成。
所述芯材由二氧化钛和氧化铝按重量比7:1组成。
所述壁材由明胶和壳聚糖按重量比3:5组成。
一种二氧化钛微胶囊整理剂的制备方法，所述方法包括以下步骤：
(1)将明胶溶于去离子水中，配制成质量浓度为8％的明胶溶液；
(2)将壳聚糖溶于冰醋酸溶液中，配制成质量分数为8％的壳聚糖醋酸溶液，然后加入乳化剂、二氧化钛和氧化铝，磁力搅拌至分散均匀得到乳液；
(3)将步骤(2)得到的乳液滴加到步骤(1)获得的明胶溶液中，调节pH值为8.5，反应40min，再加入分散剂，搅拌均匀得到复凝乳液；
(4)将步骤(3)获得的复凝乳液置于冰水浴中降温至4℃，加入固化剂，固化45min后调节pH值7.6，再移入50℃温水浴中固化4h得到微胶囊乳液，将微胶囊乳液离心、取沉淀，将沉淀抽滤、干燥得到微胶囊整理剂。
所述乳化剂为OP-80。
所述分散剂为聚乙烯醇。
所述固化剂为谷氨酰胺转氨酶。
对实施例1～3制备获得的整理剂进行性能测试，结果如下表所示：
| UVA透过率/％ | UVB透过率/％ | UPF值 | |
| 实施例1 | 4.2 | 0.25 | 203.2 |
| 实施例2 | 3.9 | 0.21 | 224.6 |
| 实施例3 | 4.0 | 0.22 | 221.2 |
Claims (7)
1.一种二氧化钛微胶囊整理剂，其特征在于，所述整理剂呈球形或椭球形，平均粒径为5～12μm，其芯材与壁材的质量比为1:0.7～1.6；所述芯材由二氧化钛和氧化铝组成，壁材由明胶和壳聚糖组成。
2.根据权利要求1所述的一种二氧化钛微胶囊整理剂，其特征在于，所述芯材由二氧化钛和氧化铝按重量比3～7:1组成。
3.根据权利要求1所述的一种二氧化钛微胶囊整理剂，其特征在于，所述壁材由明胶和壳聚糖按重量比1～3:2～5组成。
4.权利要求1～3任一所述一种二氧化钛微胶囊整理剂的制备方法，其特征在于，所述方法包括以下步骤：
(1)将明胶溶于去离子水中，配制成质量浓度为3.5～8％的明胶溶液；
(2)将壳聚糖溶于冰醋酸溶液中，配制成质量分数为2.5～8％的壳聚糖醋酸溶液，然后加入乳化剂、二氧化钛和氧化铝，磁力搅拌至分散均匀得到乳液；
(3)将步骤(2)得到的乳液滴加到步骤(1)获得的明胶溶液中，调节pH值为7.2～8.5，反应25～40min，再加入分散剂，搅拌均匀得到复凝乳液；
(4)将步骤(3)获得的复凝乳液置于冰水浴中降温至0～4℃，加入固化剂，固化15～45min后调节pH值6.5～7.6，再移入35～50℃温水浴中固化1.5～4h得到微胶囊乳液，将微胶囊乳液离心、取沉淀，将沉淀抽滤、干燥得到微胶囊整理剂。
5.根据权利要求4所述的一种二氧化钛微胶囊整理剂的制备方法，其特征在于，所述乳化剂为吐温-80或OP-80。
6.根据权利要求4所述的一种二氧化钛微胶囊整理剂的制备方法，其特征在于，所述分散剂为聚乙烯吡咯烷酮或聚乙烯醇。
7.根据权利要求4所述的一种二氧化钛微胶囊整理剂的制备方法，其特征在于，所述固化剂为戊二醛、双醛淀粉或谷氨酰胺转氨酶。
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