中国塑料 ›› 2025, Vol. 39 ›› Issue (6): 24-30.DOI: 10.19491/j.issn.1001-9278.2025.06.006

• 材料与性能 • 上一篇    下一篇

医疗包装用聚乳酸熔喷超细纤维材料的退火工艺研究

甄琪1(), 秦子轩3, 张恒2(), 崔景强4, 王国锋4, 程文胜4, 李晗2   

  1. 1.中原工学院智能服饰与服装学院,郑州 451191
    2.中原工学院智能纺织与织物电子学院,郑州 451191
    3.郑州千光新材料有限公司,郑州 451100
    4.河南驼人医疗器械研究院有限公司,河南 新乡 453400
  • 收稿日期:2024-07-19 出版日期:2025-06-26 发布日期:2025-06-20
  • 通讯作者: 张恒(1986—),男,副教授,博士,主要研究方向为新型非织造材料加工技术及其功能性应用,m-esp@163.com
    E-mail:zhenqi7721@126.com;m-esp@163.com
  • 作者简介:甄琪(1989-),女,实验师,硕士,主要研究方向为纤维材料的功能性结构调控、服装结构设计与工艺,zhenqi7721@126.com
  • 基金资助:
    河南省科技攻关项目(252102321023);河南省高校科技创新人才支持计划资助(24HASTIT011);河南省重大科技专项(231100320200);中原工学院优秀科技创新人才支持计划(K2023YXRC01);中原工学院学科骨干教师支持计划(GG202422)

Study on annealing process of polylactic acid melt blown microfibrous for medical packaging

ZHEN Qi1(), QIN Zixuan3, ZHANG Heng2(), CUI Jingqiang4, WANG Guofeng4, CHENG Wensheng4, LI Han2   

  1. 1.College of Fashion Technology,Zhongyuan University of Technology,Zhengzhou 451191,China
    2.College of Intelligent Textile and Fabric Electronics,Zhongyuan University of Technology,Zhengzhou 451191,China
    3.Zhengzhou Qianguang New Materials Co,Ltd,Zhengzhou 451100,China
    4.Henan Camel Medical Equipment Research Institute Co,Ltd,Xinxiang 453400,China
  • Received:2024-07-19 Online:2025-06-26 Published:2025-06-20
  • Contact: ZHANG Heng E-mail:zhenqi7721@126.com;m-esp@163.com

摘要:

为提高医疗包装用聚乳酸基熔喷超细纤维材料的力学性能,对制备的PLA/PCL@EBS熔喷超细纤维材料进行退火整理。通过表征样品的结构形貌、结晶性能以及力学特性等研究发现,退火整理后样品纤维直径减小,退火温度为80 ℃时,样品纤维直径在6 μm内分布频率最大为72.0 %;当退火温度从60 ℃升高为80 ℃时,样品结晶度由5.1 %增大至29.7 %;同时,样品力学性能也获得提升,其纵横向断裂强度分别由16.4 N/5 cm与3.4 N/5 cm增加为30.9 N/5 cm与8.4 N/5 cm,顶破强度由10.1 N/5cm增至18.9 N/5cm。响应面分析得出,退火温度为70 ℃,退火时间为30 min时,样品力学性能最佳。

关键词: 聚乳酸, 熔喷超细纤维, 退火整理, 力学性能, 医用包装

Abstract:

To enhance the mechanical performance of polylactic acid (PLA)⁃based melt⁃blown microfibrous materials for medical packaging, PLA/PCL@EBS melt⁃blown microfibrous samples were subjected to annealing. The structural morphology, crystallinity, and mechanical properties of the samples were systematically characterized. The results indicated that the annealing action reduced fiber diameter, with 72.0 % of fibers falling within a 6 µm diameter range at elevated annealing temperatures. Increasing the annealing temperature from 60 to 80 ℃ significantly improved crystallinity, rising from 5.1 % to 29.7 %. Concurrently, mechanical properties were enhanced: machine⁃direction and cross⁃direction fracture strengths increased from 16.4 and 3.4 N/5 cm to 30.9 and 8.4 N/5 cm, respectively, while top⁃break strength improved from 10.1 N/5 cm to 18.9 N/5 cm. Response surface methodology further revealed optimal mechanical performance at an annealing temperature of 70 °C and a duration of 30 minutes.

Key words: poly(lactic acid), melt blown microfibrous, annealing process, mechanical property, medical packaging

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