天然橡胶—氯醇橡胶相容性的研究

STUDY ON MISCIBILITY OF NR/EHR SYSTEM

利用差示扫描量热法（ＤＳＣ）和测定纯胶共混物的应力—应变性能，研究了天然橡胶（ＮＲ）化学改性对天然橡胶—氧醇橡胶（ＥＨＲ）体系相容性的影响。实验结果表明：对ＮＲ进行氯化和环氧化改性，在ＮＲ链结构中引入极性基因，可有效地提高ＮＲ／ＥＨＲ体系的相容性。并对提高相容性的原因进行了初步探讨．

By means of different scanning colorimeter(DSC)and stress-strain Properties tect, we studiedthe competibility of natural rubber (NR)and epichlo hydrin rubber (EHR). It was found that NR/EHR was a thermodynamic immiscible system. After polar gtoupe were introduced onto the NRchains, such as chloride or epoxy groups, by chemical modification, the compehbility of the blendswas effectively developed.