Effect of Dispersion of Bargi Pipe on I-V characteristics of Composite Cementitious Materials
[1]LUO Jianlin,DUAN Zhongdong.Effect of Dispersion of Bargi Pipe on I-V characteristics of Composite Cementitious Materials[J].Journal of Zhengzhou University (Engineering Science),2009,30(01):87-91.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
30
Number of periods:
2009 01
Page number:
87-91
Column:
Public date:
1900-01-01
- Title:
- Effect of Dispersion of Bargi Pipe on I-V characteristics of Composite Cementitious Materials
- Keywords:
- bucky tube; dispersion; cement-based composites; volt-ampere characteristics; Microstructure
- CLC:
- -
- DOI:
- -
- Abstract:
- The dispersion effect of polyacrylic acid (PAA) or/and nonylphenol ethoxylate(10) (Tx100) on different multi-walled barky pipes (MWNT) was studied, and then five groups of MWNT-reinforced cementitious composites (MWNT/CMs) were prepared. The results show that it is difficult to obtain good dispersion of MWNT by PAA, especially when the MWNT content is large, SEM shows that it is mostly agglomerated and winding in the matrix, and the distribution uniformity is poor. The resistivity (ρ) value of the corresponding MWNT/CM is high, and the nonlinearity of I-V characteristics is also obvious.PAA and Tx5(Ф(PAA)∶Ф(Tx3)=100) can well disperse the MWNT with higher content, and SEM shows that most MWNTs have good compatibility distribution in the matrix. The ρ of MWNT/CM in the NPT100 group was only about 2.4 Ω·m (ρmax was only 12.7 Ω·m), while the ρ of the NMNT/CM of the NP14 group with the same MWNT content was 8.4 Ω·m, and ρmax was 429 8.1 Ω·m.
- References:
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Last Update:
1900-01-01