›› 2023, Vol. 37 ›› Issue (7): 104-109.

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玻璃纤维对聚四氟乙烯回收材料性能的影响

王怀艳,张娜娜,陈康,王宁,陈拴成,董保莹,欧阳沈   

  1. 河南平高电气股份有限公司
  • 收稿日期:2023-02-06 修回日期:2023-03-03 出版日期:2023-07-26 发布日期:2023-07-26

Effect of glass fibre on properties of recycling PTFE materials

  • Received:2023-02-06 Revised:2023-03-03 Online:2023-07-26 Published:2023-07-26

摘要: 为实现聚四氟乙烯材料回收再利用,将压制未烧结的聚四氟乙烯灭弧喷口毛坯进行预加工,收集聚四氟乙烯边角料,通过气流粉碎得到聚四氟乙烯回收粉末(R?PTFE)。添加二硫化钼(MoS2)和玻璃纤维(GF)得到R?PTFE+5 %MoS2+15 %GF复合材料。通过粒度和扫描电子显微镜分析得到粉碎3次的R?PTFE粉末粒度更细。测试复合材料拉伸强度,结果表明,在粉碎3次R?PTFE粉末中添加300目GF粉末得到的R?PTFE/MoS2/GF复合材料的拉伸强度为13.17 MPa,延伸率为352.58,力学性能最优。

关键词: 聚四氟乙烯, 边角料, 回收, 玻璃纤维

Abstract: To realize the recycling and reutilization of polytetrafluoroethylene (PTFE) materials, the suppressed and unsintered PTFE arc extinguishing nozzle blank was preprocessed, and then its scrap was collected to obtain recycled PTFE (R-PTFE) powders. The R-PTFE/MoS2/glass fiber (GF) composite were obtained by incorporating 5 wt% MoS2 and 15 wt% glass fiber into the R-PTFE) powders. Based on the particle size and scanning electron microscopic analysis results, the R-PTFE powders exhibited a fine particle size after crushing three times. The mechanical test results indicated that the R-PTFE/MoS2/GF composite obtained optimal mechanical performance when incorporating 300-mesh glass fiber powders into the R-PTFE powders after crushing three times, and its tensile strength and elongation at break were 13.17 MPa and 352.58 %, respectively.

Key words: polytetrafluoroethylene, scrap material, recycle, glass fibre