CN113584712A - 一种基于静电纺丝技术制备纳米复合纤维膜的方法 - Google Patents

一种基于静电纺丝技术制备纳米复合纤维膜的方法 Download PDF

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CN113584712A
CN113584712A CN202111021407.9A CN202111021407A CN113584712A CN 113584712 A CN113584712 A CN 113584712A CN 202111021407 A CN202111021407 A CN 202111021407A CN 113584712 A CN113584712 A CN 113584712A
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fiber membrane
nano composite
electrostatic spinning
polyvinylpyrrolidone
polycaprolactone
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王滢
刘跃洲
吕丽华
钱永芳
李西月
刘妍靖
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Dalian Polytechnic University
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    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
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    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
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Abstract

本发明属于静电纺丝技术领域，具体涉及一种基于静电纺丝技术制备纳米复合纤维膜的方法。所述制备方法包括以下步骤：(1)将聚己内酯和聚乙烯吡咯烷酮溶于三氟乙醇中，磁力搅拌混匀，得到纺丝液；(2)将步骤(1)得到的纺丝液在静电纺丝机中进行静电纺丝，干燥，得到纳米复合纤维膜材料。本发明将聚己内酯、聚乙烯吡咯烷酮两种物质共混从而进行静电纺丝，得到直径小、比表面积大的纳米复合纤维膜，该结构与细胞外基质中的胶原蛋白结构相似，可应用在组织工程材料领域，而且该纳米复合纤维膜可作为一种良好的基材来负载纳米功能材料，从而制备功能纤维膜材料。

Description

一种基于静电纺丝技术制备纳米复合纤维膜的方法
技术领域
本发明属于静电纺丝技术领域，具体涉及一种基于静电纺丝技术制备纳米复合纤维膜的方法。
背景技术
近年来，生物可降解聚合物在生物医用领域越来越受到关注。一些聚合物具有生物降解性和生物相容性的优良性质，并在生物医用领域上应用于长效药物的缓释载体以及组织工程支架等，这在健康、环保和经济等领域具有重要的现实意义。刘青青等人曾用聚己内酯和聚乙烯吡咯烷酮作为溶质、二氯甲烷作为溶剂制备纳米复合纤维膜材料。但所用的纺丝液溶剂二氯甲烷有剧毒、致癌，且在纺丝过程中易发生相分离的情况，导致所制备的纤维膜使用性差。因此，本发明在溶剂上进行改进，采用三氟乙醇作为纺丝液溶剂来改善这种情况。
发明内容
本发明的目的是提供一种基于静电纺丝技术制备纳米复合纤维膜的方法，纺丝溶剂选择三氟乙醇，由于氟原子有强电负性，使得三氟乙醇的酸性增强，易形成氢键，使纺丝液化学性质稳定，不易发生相分离的情况，在纺丝过程中能够得到连续而又均匀的纤维。
为实现上述目的，本发明技术方案如下：
本发明一方面提供一种基于静电纺丝技术制备纳米复合纤维膜的方法，所述制备方法包括以下步骤：
(1)将聚己内酯和聚乙烯吡咯烷酮溶于三氟乙醇中，磁力搅拌混匀，得到纺丝液；
(2)将步骤(1)得到的纺丝液加入到注射器中进行静电纺丝，干燥，得到纳米复合纤维膜材料。
上述技术方案中，进一步地，所述步骤(1)得到的纺丝液中总溶质的质量分数为10-15wt％。
上述技术方案中，进一步地，所述聚己内酯和聚乙烯吡咯烷酮的质量比为1：(1-1.5)。
上述技术方案中，进一步地，所述纺丝液中总溶质的质量分数为12wt％，聚己内酯和聚乙烯吡咯烷酮的质量比为1：1。
上述技术方案中，进一步地，所述步骤(2)中静电纺丝方法具体为：将步骤(1)得到的纺丝液置于注射器中，选择0.33±0.01mm内径的纺丝喷头，设定电压为18-22kV、纺丝液流速为0.9-1.1mL/h、接收距离为17-19cm，在静电纺丝机中进行静电纺丝工艺，最终在接收板上直接得到纳米复合纤维膜。
上述技术方案中，进一步地，所述步骤(2)中干燥温度为90-110℃。
本发明另一方面提供一种上述制备方法制得的纳米复合纤维膜。
本发明的有益效果为：
本发明纺丝液溶剂选择三氟乙醇，由于氟原子有强电负性，使得三氟乙醇的酸性增强，易形成氢键，使纺丝液化学性质稳定，不易发生相分离的情况，在纺丝过程中能够得到连续而又均匀的纤维。
本发明将聚己内酯、聚乙烯吡咯烷酮两种物质共混从而进行静电纺丝，得到直径小、比表面积大的纳米复合纤维膜，该结构与细胞外基质中的胶原蛋白结构相似，而且纳米复合纤维膜可作为一种良好的基材来负载纳米功能材料，从而进一步制备功能纤维膜材料。
附图说明
图1为实施例1制得的纳米复合纤维膜SEM图；
图2为实施例2制得的纳米复合纤维膜SEM图。
具体实施方式
以下实施例可以使本领域的普通技术人员更全面地理解本发明，但不以任何方式限制本发明。
实施例1
一种纺丝液溶质的质量比为聚己内酯：聚乙烯吡咯烷酮＝1：1的纳米复合纤维膜的制备方法，所述制备方法包括如下步骤：
①按质量比为1：1称量聚己内酯和聚乙烯吡咯烷酮，将它们按照12wt％质量分数溶于三氟乙醇溶剂中，磁力搅拌器充分搅拌均匀；
②将步骤①所制得的复合纺丝液置于注射器中，选择0.33±0.01mm内径的纺丝喷头，设定电压为20kV、纺丝液流速为1mL/h、接收距离为18cm，在静电纺丝机中进行静电纺丝工艺，最终在接收板上直接得到纳米复合纤维膜；
③用镊子将纤维膜从接收板取下，在100℃下进行干燥，得到的纤维膜的SEM图片见图1。
实施例2
一种纺丝液溶质的质量比为聚己内酯：聚乙烯吡咯烷酮＝1：1.5的纳米复合纤维膜的制备方法，所述制备方法包括如下步骤：
①按质量比为1：1.5称量聚己内酯和聚乙烯吡咯烷酮，将它们按照12wt％质量分数溶于三氟乙醇溶剂中，磁力搅拌器充分搅拌均匀；
②将步骤①所制得的复合纺丝液置于注射器中，选择0.33±0.01mm内径的纺丝喷头，设定电压为20kV、纺丝液流速为1mL/h、接收距离为18cm，在静电纺丝机中进行静电纺丝工艺，最终在接收板上直接得到纳米复合纤维膜；
③用镊子将纤维膜从接收板取下，在100℃下进行干燥，得到的纤维膜的SEM图片见图2。
由图1、图2可知，三氟乙醇做溶剂时，通过静电纺丝技术能得到连续而均匀的纳米纤维，没出现相分离的情况。所制备的纳米复合纤维膜可作为一种良好的基材来负载纳米功能材料，从而制备功能纤维膜材料。
以上实施例仅仅是本发明的优选施例，并非对于实施方式的限定。本发明的保护范围应当以权利要求所限定的范围为准。在上述说明的基础上还可以做出其它不同形式的变化或变动。由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (7)

1.一种基于静电纺丝技术制备纳米复合纤维膜的方法，其特征在于，所述制备方法包括以下步骤：
(1)将聚己内酯和聚乙烯吡咯烷酮溶于三氟乙醇中，磁力搅拌混匀，得到纺丝液；
(2)将步骤(1)得到的纺丝液加入到注射器中进行静电纺丝，干燥，得到纳米复合纤维膜材料。
2.根据权利要求1所述的制备方法，其特征在于，所述步骤(1)得到的纺丝液中总溶质的质量分数为10-15wt％。
3.根据权利要求1所述的制备方法，其特征在于，所述聚己内酯和聚乙烯吡咯烷酮的质量比为1：(1-1.5)。
4.根据权利要求1所述的制备方法，其特征在于，所述纺丝液中总溶质的质量分数为12wt％，聚己内酯和聚乙烯吡咯烷酮的质量比为1：1。
5.根据权利要求1所述的制备方法，其特征在于，所述步骤(2)中静电纺丝方法具体为：将步骤(1)得到的纺丝液置于注射器中，选择0.33±0.01mm内径的纺丝喷头，设定电压为18-22kV、纺丝液流速为0.9-1.1mL/h、接收距离为17-19cm，在静电纺丝机中进行静电纺丝工艺，最终在接收板上直接得到纳米复合纤维膜。
6.根据权利要求1所述的制备方法，其特征在于，所述步骤(2)中干燥温度为90-110℃。
7.一种权利要求1-6任一项所述制备方法制得的纳米复合纤维膜。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102242463A (zh) * 2011-04-20 2011-11-16 东华大学 一种静电纺制备明胶/聚己内酯复合纳米纤维膜的方法
CN103422255A (zh) * 2012-05-17 2013-12-04 五邑大学 一种可用于医用敷料含纳米银的复合纤维膜的制备方法
CN103893819A (zh) * 2014-03-20 2014-07-02 北京大学第三医院 一种同轴静电纺丝纤维支架及其制备方法
CN105339018A (zh) * 2013-06-28 2016-02-17 广州迈普再生医学科技有限公司 组织修复支架及其制备方法和用途
CN106049026A (zh) * 2016-07-14 2016-10-26 四川大学 一种负载姜黄素的胶原‑pcl‑pvp复合微纳纤维膜及其制备方法
US10087553B1 (en) * 2007-01-22 2018-10-02 The United States Of America As Represented By The Secretary Of The Army Polymer-micelle complex as an aid to electrospinning

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10087553B1 (en) * 2007-01-22 2018-10-02 The United States Of America As Represented By The Secretary Of The Army Polymer-micelle complex as an aid to electrospinning
CN102242463A (zh) * 2011-04-20 2011-11-16 东华大学 一种静电纺制备明胶/聚己内酯复合纳米纤维膜的方法
CN103422255A (zh) * 2012-05-17 2013-12-04 五邑大学 一种可用于医用敷料含纳米银的复合纤维膜的制备方法
CN105339018A (zh) * 2013-06-28 2016-02-17 广州迈普再生医学科技有限公司 组织修复支架及其制备方法和用途
CN103893819A (zh) * 2014-03-20 2014-07-02 北京大学第三医院 一种同轴静电纺丝纤维支架及其制备方法
CN106049026A (zh) * 2016-07-14 2016-10-26 四川大学 一种负载姜黄素的胶原‑pcl‑pvp复合微纳纤维膜及其制备方法

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