機械鬆弛定量分析模式建立：填充顆粒效應
Date Issued
2004
Date
2004
Author(s)
DOI
922216E002016
Abstract
The effect of carbon black on the dynamic mechanical relaxation of DCP-cured
natural rubber utilizing Dynamic Mechanical Analyzer (DMA) was studied in this
work. Adding carbon black increased physical cross-links, while the chemical
cross-link density basically maintained the same. From the result of DMA, it was
clear the molecular motions were influenced by cross-linking. Further analyzing by
Havriliak-Negami (HN) equation, it was found that the more the amount of carbon
black, the larger activation energy and the change of entropy of molecular motions.
This could be explained by the influence of cross-link density on molecular motions
and chain conformations. The analysis of parameters, α and β of HN equation,
revealed the cross-linking influenced the inter-chain molecular motions obviously, but
not the intra-chain ones. Thus, α decreased with the increase of cross-link density.
However, the change of αβ did not have a trend.
Subjects
natural rubber
carbon black
dynamic mechanical analysis
Publisher
臺北市：國立臺灣大學材料科學與工程學研究所
Type
report
File(s)![Thumbnail Image]()
Loading...
Name
922216E002016.pdf
Size
76.03 KB
Format
Adobe PDF
Checksum
(MD5):e8173bed3bc856439071fe97f9497b13