化加工条件对非织造聚乳酸和聚乙烯糖酸盐的影响
Patcharee Pratumpong1, Thananya Cholprecha2, Nanjaporn Roungpaisan3
1Department of Physics, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani 12120, Thailand.
Polymers
|October 28, 2023
概括
研究人员使用融化吹风工艺从聚乳酸和聚乙烯糖酸制成无布. 过程参数,如气压和距离影响纤维大小和材料特性,显示了织应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 织工程 织工程 织工程
背景情况:
- 无布是多功能材料,具有多种应用.
- 融技术是生产精细无纤维的关键工艺.
- 聚乳酸 (PLA) 和聚乙烯糖酸 (PBS) 是可生物降解的聚合物,具有可持续织品的潜力.
研究的目的:
- 为了研究化过程参数对PLA和PBS无布的影响.
- 描述由此产生的无织品的纤维形态,机械性能和热行为.
- 评估使用PLA和PBS在造无布生产中的可行性.
主要方法:
- 非织造材料由PLA和PBS制成,使用融技术.
- 造过程参数,包括空气压力 (0.2,0.4 MPa) 和模具到采集器的距离 (15,30,45 cm) 系统地变化.
- 分析了纤维直径,拉伸强度,破裂时的延长和晶体性 (通过XRD).
主要成果:
- 空气压力增加和模具到收集器的距离导致两种聚合物纤维直径都更小.
- 拉伸强度受到聚合物类型,空气压力和模具到采集器距离的影响.
- 断裂时的延长通常随着模具到集体的距离越大而增加.
- 在PBS无布中,结晶度增加,模具到采集器的距离更高.
- 在所有条件下,PLA无布成功生产;PBS无布在15厘米的距离下失败.
结论:
- 造过程参数显著影响PLA和PBS无布的性能.
- 无论是PLA还是PBS都可以加工成无布,PBS需要特定的参数优化.
- 这些发现凸显了PLA和PBS无布在织工业中可持续应用的潜力.
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