熔融共混法丁腈橡胶/聚酰胺6复合材料的性能研究  

Study on the Properties of NBR/PA6 Composites by Melt Blending

作　　者：康永[1] 

机构地区：[1]西北工业大学,西安710072

出　　处：《塑料助剂》2017年第6期25-29,共5页Plastics Additives

摘　　要：为了考察丁腈橡胶(NBR)与聚酰胺6(PA6)共混产物综合性能变化,本文采用不同种类NBR与PA6熔融共混,考察共混过程中转矩值变化,表征了共混物的力学性能、耐溶剂性能,并且共混产物进行了红外光谱分析。研究结果表明:随着共混物体系中橡胶相含量的增加,共混物体系的熔体粘度上升。相同腈基含量下的NBR/PA6共混物的平衡转矩值随着NBR含量的增加而增加;拉伸强度随着共混物中NBR橡胶含量的上升,呈下降趋势。在相同的NBR含量条件下,拉伸强度随着腈基含量的增加而增加;红外测试结果显示NBR与PA间在高温高剪切作用下存在微化学反应,即双键与胺基间的反应;共混物体系中随着NBR含量的上升,共混物体系的体积溶胀率与质量溶胀率均呈上升趋势。In order to examine the comprehensive performance changes of nitrile-butadiene rubber and polyamide 6 （PA6）blending product, this thesis using different kind of NBR and PA6 for melt blending, in- spects the changes of balance torque values during blending process. Research the mechanical properties, sol- vent resistance performance of blending product, and take a series of tests by infrared spectroscopic analysis. The research results show that the melt viscosity is rising up with the increase of the content of the NBR. In the same content of nitrile group the NBR and PA6 balance torque values is rising up with the increase of con- tent of basic-rubber, the tensile strengthis reduced with the increase of content of basic-rubber.. In the same content of NBR, the tensile strength is rising up with the content of nitrile group ; The infrared spectroscopic a- nalysis test results show that there have micro chemical reactions between with NBR and PA6 in high tempera- ture and high shear function, namely the reaction between double bond and amino group; Volume swelling ra- tio and quality swelling ratio at blend system is rising up with the increase of content of basic-rubbe.

关 键 词：丁腈橡胶 尼龙6 共混聚合物 耐溶剂性能 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]