CAJ | 학술논문

通过在丁腈橡胶 NBR/受阻酚类抗氧化剂AO-2246共混物中填充不同形态填料(玻璃纤维和炭黑)，考察对其动态力学性能的影响。并通过动态力学性能分析仪、扫描电镜以及红外光谱等表征手段研究发现，分别填充两种不同类型填料于 NBR/AO-2246共混物中，杂化阻尼复合材料阻尼值均呈下降趋势。填充炭黑相比短纤维，具有较为优异的阻尼性能，且随着炭黑粒径的增大阻尼峰有被拓宽的趋势。结果表明，填料导致阻尼值下降主要归因于 NBR 与 AO-2246生产的分子间氢键逐渐消失；填充不同形态填料，杂化阻尼复合材料呈现不同阻尼特性，归因于材料内部形成不同内部微观结构，即在其内部形成了大量界面，使分子间运动呈现不同的滞后现象；而不同粒径炭黑对阻尼峰的影响，可从界面区数量得到解释。
통과재정정상효 NBR/수조분류항양화제AO-2246공혼물중전충불동형태전료(파리섬유화탄흑)，고찰대기동태역학성능적영향。병통과동태역학성능분석의、소묘전경이급홍외광보등표정수단연구발현，분별전충량충불동류형전료우 NBR/AO-2246공혼물중，잡화조니복합재료조니치균정하강추세。전충탄흑상비단섬유，구유교위우이적조니성능，차수착탄흑립경적증대조니봉유피탁관적추세。결과표명，전료도치조니치하강주요귀인우 NBR 여 AO-2246생산적분자간경건축점소실；전충불동형태전료，잡화조니복합재료정현불동조니특성，귀인우재료내부형성불동내부미관결구，즉재기내부형성료대량계면，사분자간운동정현불동적체후현상；이불동립경탄흑대조니봉적영향，가종계면구수량득도해석。
The effect of the different configuration of fillers (glass fiber and carbon black)in the nitrile rubber (NBR)/small organic molecules (AO-2246)/blending on the dynamic mechanical properties have been investi-gated by using dynamic mechanical analyzer (DMA),scanning electron microscope (SEM)and Fourier trans-form infrared (FT-IR),etc.It was found that the damping peak values for the two different fillers both steady declined with the increase of the content.The NBR/AO-2246/carbon black (CB)blending showed the more ex-cellent damping property than that of NBR/AO-2246/short fibers blending.At meanwhile,there was a trend that the damping peak width may be broadened with the increment of particle sizes of CB.The results indicated that the decrease of damping value was owing to the disappearance of hydrogen bonds between the NBR and AO-2246 after added different fillersinto the NBR/AO-2246 blending.The hybrid damping materials filled with varied form of fillers which presented different internal microstructure was shown different damping characteris-tics,because a great deal of interfaces formed inside the material led to the phenomenon that molecule motions exhibited various hysteresis.The effect of different particle sizes of carbon black on the damping properties can be explained from the amount of interfaces.