中国塑料 ›› 2020, Vol. 34 ›› Issue (10): 44-50.DOI: 10.19491/j.issn.1001-9278.2020.10.008

• 加工与应用 • 上一篇    下一篇

炭黑对聚醚醚酮激光吸收影响的实验研究及数值模拟

田仁杰1, 朱光明1(), 吕玉伟2, 吴涛涛2, 任天宁1, 马志亮2, 张爽2   

  1. 1.西北工业大学化学与化工学院,西安 710129
    2.西北核技术研究院,激光与物质相互作用国家重点实验室,西安 710024
  • 收稿日期:2020-05-19 出版日期:2020-10-26 发布日期:2020-10-26

Experimental Study and Numerical Simulation for Effect of Carbon Black on Laser Energy Absorption of PEEK

TIAN Renjie1, ZHU Guangming1(), LYU Yuwei2, WU Taotao2, REN Tianning1, MA Zhiliang2, ZHANG Shuang2   

  1. 1.School of Chemistry and Chemical Engineering,Northwestern Polytechnical University,Xi’an 710129,China
    2.State Key Laboratory of Laser Interaction with Matter,Northwest Institute of Nuclear Technology,Xi’an 710024,China
  • Received:2020-05-19 Online:2020-10-26 Published:2020-10-26
  • Contact: ZHU Guangming E-mail:2290014001@qq.com

摘要:

以聚醚醚酮(PEEK)Victrex PEEK-450PF为原料,采取手工研磨的方法分别混入质量分数为0.01 %、0.03 %、0.05 %、0.1 %的炭黑(CB),而后通过模压成型制备厚度为0.5 mm的片材。分别运用激光功率计、紫外-可见光-近红外分光光度计测试了材料的反射率、透射率等光学特性;并在激光功率密度为35 W/cm2,移动速率为5 mm/s的工艺参数下,研究了CB填料的加入对PEEK激光能量沉积效率的影响,最后借助COMSOL软件构建了含有不同质量分数CB的PEEK对激光能量吸收的数值模型。结果表明,纯PEEK片材对1 070 nm波段的激光吸收不强,CB材料的引入可明显降低PEEK对1 070 nm激光的反射以及透射,增强材料的光?热转换效率,并且对材料的拉伸强度影响不大,数值模拟的结果与实验结果吻合性较好。

关键词: 聚醚醚酮, 炭黑, 激光, 数值模拟

Abstract:

Polyetheretherketone (PEEK)/carbon black (CB) blending sheets with an thickness of 0.5 mm were prepared by a compression molding process using Victrex PEEK-450PF as a raw material, and their optical characteristics were characterized by a laser power meter and UV-Vis-IR spectrophotometer. The effect of CB content on the laser energy deposition efficiency of blending sheets was investigated under the process condition of a laser power density of 35 W/cm2 and a moving speed of 5 mm/s. A numerical model was established for the laser energy absorption of PEEK by using the COMSOL software. The results indicated that pure PEEK sheet did not strongly absorb the laser at a wavelength of 1070 nm. However, the addition of CB could significantly reduce the reflection and transmission of PEEK to the laser and enhance the photo?thermal conversion efficiency of blending sheets. There was little effect on the tensile strength of blending sheets. In addition, the numerical simulation results were found to be in good agreement with the experimental ones.

Key words: polyetheretherketone, carbon black, laser, numerical simulation

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