文献类型：期刊文献

中文题名：聚己内酯/聚丁内酰胺电纺纤维的制备及性能

英文题名：Preparation and Properties of PCL/PBL Electrospun Fibers

作者：明远[1];陈涛[1,3];赵黎明[2,3];邱勇隽[2,3]

机构：[1]华东理工大学材料科学与工程学院,上海市先进聚合物材料重点实验室,上海200237;[2]华东理工大学生物工程学院,生物反应器工程国家重点实验室,发酵工业分离提取技术研发中心,上海200237;[3]华东理工大学中国轻工业生物基材料工程重点实验室,上海200237

年份：2023

卷号：36

期号：2

起止页码：160

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2023_2024】；

基金：上海市自然科学基金(21ZR1416000);上海市“科技创新行动计划”技术标准项目(21DZ2205900)。

语种：中文

中文关键词：聚己内酯;聚丁内酰胺;静电纺丝;亲水性;相容性;力学性能

外文关键词：polycaprolactone;polybutyrolactam;electrospinning;hydrophilicity;compatibility;mechanical property

摘要：通过溶液静电纺丝法制备了聚己内酯/聚丁内酰胺(PCL/PBL)电纺纤维膜。采用扫描电子显微镜(SEM)、水相接触角测量仪、原子力显微镜(AFM)、能谱仪(EDS)、透射电子显微镜(TEM)、X射线衍射仪(XRD)、热重分析仪(TGA)、差示扫描量热仪(DSC)、电子万能拉力机对PCL/PBL电纺纤维的形貌、亲疏水性、结晶性能、热性能及力学性能进行了研究。结果表明,随着PBL含量的增加,纤维直径增大、分布变窄,且纤维膜的亲水性明显改善;PCL与PBL有一定相容性,PCL/PBL电纺纤维膜的结晶度高于PCL或PBL均聚物电纺纤维膜,并随PBL含量增加而提高;PCL/PBL电纺纤维膜中PCL熔点随PBL含量增加而略有增加,PBL组分的熔点则基本不变。两组分的结晶温度和纤维膜热稳定性均随PBL含量增加而降低。PBL的加入使电纺纤维膜的力学性能明显提高。
Electrospun polycaprolactone(PCL)nanofibers are often used as biomedical materials for drug release systems and tissue engineering scaffolds due to their biodegradability,but the hydrophobicity and mechanical defects limit the wider applications.Here,polybutyrolactam(PBL),a biodegradable polyamide with excellent mechanical properties and high moisture regain,was blended with PCL in co-solvent to electrospin fiber membranes with improved mechanical properties and the hydrophilicity.Scanning electron microscope(SEM),water contact angle measuring instrument,atomic force microscope(AFM),energy dispersive spectroscopy(EDS),transmission electron microscope(TEM),X-ray diffraction(XRD),thermogravimetric analyzer(TGA),differential scanning calorimetry(DSC),electronic universal tension machine were used to investigate the morphology,diameter and distribution of fibers,the hydrophilicity,crystallinity,thermal and mechanical properties of the fiber membranes.It was found that increasing the PBL content increased the fiber diameter,narrowed the diameter distribution,and significantly improved the hydrophilicity of the fiber membrane.PBL had been shown to be compatible with PCL,and the crystallinity of PCL/PBL electrospun fiber membranes with increasing PBL content was higher than that of monocomponent fiber membranes.Increasing the PBL content also slightly raised the melting point of the PCL component in the fiber membranes,while that of PBL remained unchanged.The crystallization temperatures of PBL and PCL,as well as the thermal stability of the fiber membranes decreased with increasing PBL content.The addition of PBL significantly improved the mechanical properties of electrospun fiber membranes.The greater PBL content was,the better the mechanical properties of the fiber membrane were.