CAJ | 학술논문

用核磁共振(NMR)法(仪器为NMR法交联密度测试仪)研究炭黑/白炭黑并用比对胶料交联密度的影响.结果表明:NMR法测试胶料交联密度,可反映炭黑和白炭黑与橡胶的作用;采用NMR法测试的胶料交联密度对炭黑/白炭黑并用比变化敏感;炭黑用量增大,硫化胶的交联密度增大;偶联剂Si75能减少白炭黑与炭黑之间的作用,促进白炭黑分散,消除或减轻白炭黑用量较大导致的胶料硫化延迟.
용핵자공진(NMR)법(의기위NMR법교련밀도측시의)연구탄흑/백탄흑병용비대효료교련밀도적영향.결과표명:NMR법측시효료교련밀도,가반영탄흑화백탄흑여상효적작용;채용NMR법측시적효료교련밀도대탄흑/백탄흑병용비변화민감;탄흑용량증대,류화효적교련밀도증대;우련제Si75능감소백탄흑여탄흑지간적작용,촉진백탄흑분산,소제혹감경백탄흑용량교대도치적효료류화연지.
The inlfuence of the ratio of carbon black and silica on the cross-linking degree of rubber compound was studied using nuclear magnetic resonance (NMR) method with a NMR based cross-linking degree tester. The results of NMR based cross-linking degree test could relfect the interactions between of silica, carbon black and rubber. It was found that the cross-linking degree was highly dependent on the ratio of carbon black and silica. The cross-linking degree increased with the increase of carbon black content. The addition of silane coupling agent Si75 could reduce the interaction between silica and carbon black, improve the dispersion of silica, and minimize the delay of vulcanization due to the large amount of silica.