中国塑料 ›› 2022, Vol. 36 ›› Issue (5): 14-18.DOI: 10.19491/j.issn.1001-9278.2022.05.003

• 材料与性能 • 上一篇    下一篇

基于闪蒸法制备再生聚乙烯无纺布及其性能研究

夏云霞1, 李磊1(), 罗章生2(), 朱倩沁3, 何力军3   

  1. 1.厦门大学材料学院,福建 厦门 361005
    2.厦门当盛科技有限公司,福建 厦门 361000
    3.厦门当盛新材料有限公司,福建 厦门 361000
  • 收稿日期:2021-12-13 出版日期:2022-05-26 发布日期:2022-05-26
  • 通讯作者: 李磊(1972—),男,教授,从事高分子材料研究,lilei@xmu.edu.cn
    罗章生(1970—),男,工程师,从事产业用纺织品研究,huaxian9012@qq.com
    E-mail:lilei@xmu.edu.cn;huaxian9012@qq.com
  • 基金资助:
    福建省科技厅?福建省高校产学合作科技重大项目(2019H6002)

Preparation and properties of recycled polyethylene non⁃woven fabrics based on flash evaporation

XIA Yunxia1, LI Lei1(), LUO Zhangsheng2(), ZHU Qianqin3, HE Lijun3   

  1. 1.College of Materials,Xiamen University,Xiamen 361005,China
    2.Xiamen Dangs Technology Co,Ltd,Xiamen 361000,China
    3.Xiamen Dangs New?Materials Co,Ltd,Xiamen 361000,China
  • Received:2021-12-13 Online:2022-05-26 Published:2022-05-26
  • Contact: LI Lei, LUO Zhangsheng E-mail:lilei@xmu.edu.cn;huaxian9012@qq.com

摘要:

以2种熔体流动速率(MFR)不同的再生聚乙烯为原料,二氟一氯甲烷和四氟二氯乙烷混合物为溶剂,采用闪蒸法制备了2种再生聚乙烯无纺布,并通过扫描电子显微镜(SEM)、差示扫描量热仪(DSC)、电子强力机和数字透气度仪等对其表观形貌、热性能、力学性能、透气性和抗水压性等进行了表征和测试。结果表明,基于闪蒸法制备的再生聚乙烯无纺布由超细纤维黏连堆叠而成,其最大拉伸断裂强力为233 N/5 cm,最大断裂伸长率为77 %,且具有良好的透气性、抗静水压性、印染性和阻隔性;制备的再生聚乙烯无纺布具有良好的综合性能,实现了再生聚乙烯赋能增值的目标,符合可持续发展理念,具有广阔的市场前景。

关键词: 再生聚乙烯无纺布, 闪蒸法, 性能

Abstract:

Two types of recycled polyethylene non?woven fabrics were prepared by a flash evaporation method using two types of recycled polyethylene with different melt flow rates as raw materials and a mixture of difluorochloromethane and tetrafluorodichloroethane as solvents. Their morphology, thermal properties, mechanical properties, air permeability, and water resistance were investigated using a scanning electron microscope, a differential scanning calorimeter, an electron intensity meter, and a digital air permeability meter. The results indicated that the recycled polyethylene non?woven fabrics were both composed of ultra?fine fibers. They exhibited maximum tensile breaking strength of 233 N/5 cm, maximum elongation break of 77 %, good air permeability, high resistance to hydrostatic pressure, good printing and dyeing properties, and satisfactory barrier performance. With such good comprehensive properties, the recycled polyethylene non?woven fabrics reach the goal for achieving addition value in the recycled polyethylene. This matches the sustainable development target and shows a broad market prospect in near future.

Key words: recycled polyethylene non?woven fabric, flash?spinning, property

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