玻璃钢/复合材料 ›› 2009, Vol. 205 ›› Issue (6): 31-34.

• 材料研究 • 上一篇    下一篇

炭纤维增强水泥复合材料的制备及力学性能研究

郑争旗1,  余洋1,闫曦2   

  1. (1.新疆创越投资有限责任公司,新疆乌鲁木齐830011;2.中科院山西煤炭化学研究所,  山西太原030001)
  • 出版日期:2009-11-28 发布日期:2009-06-25
  • 作者简介:郑争旗,男,助理工程师,主要从事碳纤维的开发及其应用研究。

STUDY ON THE PREPARATION AND MECHANICAL PROPERTIES OF
 CARBON FIBER REINFORCED CEMENT COMPOSITES

  • Online:2009-11-28 Published:2009-06-25

摘要:

本文采用羧甲基纤维素钠(Sodium Carbonxymethyl Cellulose, CMC)与硅微粉(Fine Silica Fumes, SF)

作为复合分散剂对PAN基炭纤维进行协同分散来制备炭纤维增强水泥复合材料(Carbon Fiber Reinforced Cement

Composites, CFRCC),研究了炭纤维用量、分散剂配比及水灰比对其强度的影响。试验结果表明,此法对纤维具

有良好的分散效果。经过对各个掺量进行优选发现,在炭纤维为水泥掺量的1%,CMC和SF的分别为0.05%和15%,水

灰比为0.30~0.32时效果最好,所得CFRCC 7d(7天)的抗折和抗压强度分别提高了31.22%和41.25%。

关键词: 炭纤维, 增强水泥, 制备, 力学性能

Abstract:

Sodium Carbonxymethyl Cellulose (CMC) and Fine Silicon Fumes (SF) were used as composite

dispersants of PAN based carbon fiber for fabricating carbon fiber reinforced cement composites

(CFRCC) in this paper. The effect of the mixture ratio of composite dispersant on the mechanical

properties of CFRCC and the relationship between mechanical properties and the content of carbon

fiber as well as water cement ratio were studied. The results showed that it was a good way for the

dispersion of carbon fiber, it was found that the flexural strength and compressive strength of

CFRCC could be improved by 31.22% and 41.25% in 7 days respectively, when the content of carbon

fiber in cement was 1%, CMC and fine silicon fumes were 0.05% and 15%, the watercement ratio was

0.3 to 0.32.

Key words: carbon fiber, reinforcedcement, preparation, machanical properties