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首页> 外文期刊>Journal of Applied Polymer Science >The structure and dynamic properties of nitrile-butadiene rubber/poly(vinyl chloride)/hindered phenol crosslinked composites
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The structure and dynamic properties of nitrile-butadiene rubber/poly(vinyl chloride)/hindered phenol crosslinked composites

机译：丁腈橡胶/聚氯乙烯/受阻酚交联复合材料的结构和动力学性能

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摘要

In this article, a new nitrile-butadiene rubber (NBR) crosslinked composites containing poly(viny chloride) (PVC) and hindered phenol (AO-80 and AO-60) was successfully prepared by melt-blending procedure. Microstruture and dynamic mechanical properties of the composites were investigated using SEM, DSC, XRD, and DMTA. Most of hindered phenol was dissolved in the NBR/PVC matrix and formed a much fine dispersion. The results of DSC and DMTA showed that strong intermolecular interaction was formed between the hindered phenol and NBR/PVC matrix. The NBR/PVC/AO-80 crosslinked composites showed only one transition with higher glass transition temperature and higher tan 6 value than the neat matrix, whereas for the NBR/PVC/AO-60 crosslinked composites, a new transition appeared above the glass transition temperature of matrix, which was associated with the intermolecular interaction between AO-60 and PVC component of the matrix. Both AO-80 and AO-60 in the crosslinked composites existed in amorphous form. Furthermore, the chemical crosslinking of composites resulted in better properties of the materials, e.g., considerable tensile strength and applied elastic reversion. (C) 2008 Wiley Periodicals, Inc.
机译：本文成功地通过熔融共混法成功地制备了一种新型的丁腈橡胶（NBR）交联复合材料，其中包含聚氯乙烯（PVC）和受阻酚（AO-80和AO-60）。使用SEM，DSC，XRD和DMTA研究了复合材料的微结构和动态力学性能。大多数受阻酚溶解在NBR / PVC基质中，并形成了非常精细的分散体。 DSC和DMTA的结果表明，受阻酚与NBR / PVC基质之间形成了强烈的分子间相互作用。 NBR / PVC / AO-80交联复合材料仅比纯基质具有更高的玻璃化转变温度和更高的tan 6值的转变，而对于NBR / PVC / AO-60交联复合材料，在玻璃化转变温度以上出现了新的转变基质温度与AO-60和基质PVC成分之间的分子间相互作用有关。交联复合材料中的AO-80和AO-60均以无定形形式存在。此外，复合材料的化学交联导致材料具有更好的性能，例如相当大的拉伸强度和施加的弹性回复。 （C）2008 Wiley期刊公司

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