Cf / E-TiO2 复合材料的制备与性能

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Cf / E-TiO2 复合材料的制备与性能
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作者单位:西安航天复合材料研究所
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中图分类号:TB3
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Properties of Nano-TiO2 Reinforced T700 Cf / E Composites

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摘要:

采用复合分散工艺将纳米TiO2 均匀分散于环氧树脂中,制备了环氧-纳米TiO2 树脂浇铸体,并

采用湿法缠绕工艺制备了T700 碳纤维增强环氧复合材料(Cf / E)以及T700 碳纤维增强环氧-纳米TiO2(Cf / ETiO2)

复合材料NOL 环与Φ150 mm 容器,研究了纳米TiO2 对环氧树脂浇铸体、复合材料NOL 环和Φ150 mm

容器性能的影响。结果表明,纳米TiO2 的加入对环氧基体和Cf / E 复合材料均有不同程度的增强、增韧效果,

其中环氧基体的拉伸强度提高了9. 2%,弯曲强度提高了9. 8%,冲击强度提高了52. 9%;Cf / E-TiO2 复合材料

NOL 环层剪强度达到87. 7 MPa,提高了22. 3%;Φ150 mm 容器特性系数达到43. 4 km,纤维强度发挥率达到

94. 3%,分别提高了9. 9%和3. 3 %。

Abstract:

Nano-TiO2 was dispersed uniformly in epoxy resin by the mixed process and epoxy/ nano-TiO2 resin

were manufactured by casting process. The NOL rings and Ф150 mm standard pressure vessels of T700 carbon fiber/ epoxy

and T700 carbon fiber/ epoxy/ nano-TiO2 composites were manufactured by wet-winding. The nano-TiO2effect on the

properties of epoxy casting resins and T700 carbon fiber/ epoxy composites were also studied. The results show that the

addition of nano-TiO2is reinforced differently on epoxy resins and T700 carbon fiber/ epoxy composites. Comparing with

the epoxy without nano-TiO2, its tension strength and flexural strength of epoxy/ nano-TiO2 system are increased respectively

9.2% and 9.8%. The interlaminar shear strength of T700 carbon fiber/ epoxy/ nano-TiO2 NOL rings reached 87． 7

MPa, increasing 22.3%. The vessel performance factor of Ф150 mm pressure vessels are 43. 4 km, and the strength

transfer rate of T700 carbon fiber is 94.3%. Comparing with the composites without nano-TiO2, its vessel performance

factor and strength transfer rate of T700 carbon fiber are increased respectively 9.9% and 3.3%.

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惠雪梅. Cf / E-TiO2 复合材料的制备与性能[J].宇航材料工艺,2015,45(3).

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在线发布日期: 2016-11-28
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