化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (6) : 192-196. DOI: 10.19817/j.cnki.issn1006-3536.2022.06.038

科学研究

水性航空漆面抛填剂的制备及其性能研究

作者信息 +

Study on preparation and performance of aqueous aerospace paint polish filler

Zhao Haodong, Li Meng, Zhao Xin, Yang Huarong, Huang Chengchao

Author information +

文章历史 +

Received
2021-11-21
Issue Date	Revised Date
2022-07-06	2021-11-21

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摘要

面向航空器的应用要求,通过基础配方设计和添加纳米级稀土氧化物CeO₂改性填料,制备了水性航空漆面抛光填充剂(简称抛填剂),并开展了抛填剂的性能表征。运用红外光谱、热重、透射电镜、X射线衍射等测试手段表征粉体材料,研究偶联包覆对纳米CeO₂在水性漆面抛光剂基体中分散能力的影响。结果表明:制备的抛填剂具有良好的稳定性,可在航空器漆面形成具有良好的疏水性、抛填效果和紫外屏蔽能力的光滑致密薄膜。抛填剂中CeO₂纳米粒子质量含量为10%时,经抛填施工后,航空器漆层的表面粗糙度从此前的140.200nm降低为33.282nm,水滴接触角从84.7°提高为105.3°。在此基础上,经抛填施工的航空器漆层在人工荧光紫外灯老化7d后,在可见光区域(≥400nm)的透明度达到90%,在紫外光区(≤350nm)的反射率约为2%,接触角几乎不变,此种抛填剂具有良好的综合应用前景。

Abstract

Aqueous aerospace paint polishing fillers (referred to as polish fillers) were prepared by basic formulation design and addition of nano-scale rare earth oxide CeO₂ modified fillers for aircraft applications.The performance characterisation of the polish fillers was carried out.The powder materials were characterised by FT-IR,TG,TEM and XRD,and investigated the effect of coupling coating on the dispersion of CeO₂ in the matrix of the polish fillers.The surface roughness of the aircraft paint layer was reduced from 140.200nm to 33.282nm,and the water droplet contact angle was increased from 84.7° to 105.3° after the application of 10% (mass fraction) of CeO₂ nanoparticles.On the basis of this,the transparency of the aircraft paint layer after 7 d of artificial fluorescent UV lamp ageing reached 90% in the visible region (≥400nm) and the reflectivity in the UV region (≤350nm) was about 2%,and the contact angle was almost unchanged.

关键词

纳米二氧化铈 / 水性 / 疏水 / 紫外吸收性能 / 航空抛填剂

Key words

nano-CeO₂ / aquosity / hydrophobicity / UV-absorbing property / aerospace polish filler

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水性航空漆面抛填剂的制备及其性能研究[J]. 化工新型材料, 2022, 50(6): 192-196 DOI:10.19817/j.cnki.issn1006-3536.2022.06.038

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