三种测量橡胶交联密度的核磁共振方法比较

核磁共振（NMR）技术已经成为测量橡胶交联密度的一种常用技术手段．该文探讨了用于测量橡胶交联密度的三种NMR方法：1H双量子（DQ）NMR、1HHahn回波和1HCPMG回波，讨论了这些方法测量值差异的来源．在此基础上进一步研究了1HCPMG回波方法中回波时间对测量值的影响，探讨了改善1HCPMG回波方法的方案．...

Full description

Saved in:
Bibliographic Details
Published in波谱学杂志 Vol. 34; no. 4; pp. 408 - 420
Main Author 高鹏飞;褚琳琳;杨翼;江纪锋;王嘉琛;姚叶锋;周兵
Format Journal Article
LanguageChinese
Published 上海市磁共振重点实验室,华东师范大学 物理与材料科学学院,上海 200062%上海纽迈电子科技有限公司,上海,200062%双钱集团上海轮胎研究所有限公司,上海,200237%同济大学 材料科学与工程学院,上海,201804 2017
Subjects
1HCPMG回波;1HHahn回波;1HDQNMR;天然橡胶;交联密度
natural rubber
1H double-quantum (DQ) NMR
crosslink density
1HHahn回波
1HCPMG回波
1H CPMG echo
天然橡胶
交联密度
1H Hahn echo
1HDQNMR
Online AccessGet full text
ISSN1000-4556
DOI10.11938/cjmr20172571

Cover

More Information
Summary:核磁共振（NMR）技术已经成为测量橡胶交联密度的一种常用技术手段．该文探讨了用于测量橡胶交联密度的三种NMR方法：1H双量子（DQ）NMR、1HHahn回波和1HCPMG回波，讨论了这些方法测量值差异的来源．在此基础上进一步研究了1HCPMG回波方法中回波时间对测量值的影响，探讨了改善1HCPMG回波方法的方案．
Bibliography:NMR is a frequently used technique for measuring crosslink density of rubbers.In this work,three commonly used proton NMR methods for measuring crosslink density of rubbers[i.e.,1H double-quantum(DQ)NMR,1H Hahn echo and1H CPMG echo]were compared.Different approaches showed different results,and the origin of such discrepancy was discussed.The echo time dependence of the crosslink density measured with the CPMG echo method was studied.The ways to improve the CPMG echo-based measurements are discussed.
42-1180/O4
1H CPMG echo;1H Hahn echo;1H double-quantum (DQ) NMR; natural rubber;crosslink density
ISSN:1000-4556
DOI:10.11938/cjmr20172571