炭黑与丁腈橡胶界面作用的研究

采用傅里叶转换红外光谱仪研究炭黑与丁腈橡胶（NBR）的界面作用。结果表明：与未添加填料的NBR混炼胶相比，炭黑/NBR混炼胶的C≡N伸缩振动峰、反式1，4-丁二烯基团C一H键的弯曲振动峰和亚甲基C一H键的弯曲振动峰均发生红移，而二氧化铁/NBR混炼胶的上述振动峰无变化；炭黑品种对炭黑/NBR混炼胶各基团的红外特征峰影响不大。小分子模拟试验表明炭黑表面的竣基、竣酸基团及炭黑的大苯环体系对其与NBR的相互作用贡献较大；氨解试验表明炭黑与一CH＝CH一和一CH₂的作用不同于与一C≡N的氢键作用。;The interfacial interaction of carbon black/NBR was investigated by using Fourier transform infrared spectroscopy（FTIR）.The results showed that，compared with unfilled NBR compound，the C≡N stretching vibrational absorption，C一H bending vibrational absorption of trans 1，4-butadiene groups and C一H bending vibrational absorption of methylene of carbon black/NBR compound showed red-shift，but those vibrational absorptions of titanium dioxide/NBR compound showed no shift.The type of carbon black had little influence on the FTIR spectrum of carbon black/NBR compound.The simulation experiments of small function molecules showed that carboxylic acid，carboxyl groups and big benzene ring system of carbon black had large contribution to the interfacial interaction of NBR and carbon black.The ammonolysis experiments showed that the interaction betweencarbon black and 一CH＝CH一 and 一CH₂ was different from the hydrogen-bond interaction between carbon black and 一C≡N