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首页> 外文期刊>Journal of Applied Polymer Science >Mechanically enhanced electrically conductive films from polymerization of 3,4-ethylenedioxythiophene with wood microfibers (vol 134, pg 45127, 2017)
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Mechanically enhanced electrically conductive films from polymerization of 3,4-ethylenedioxythiophene with wood microfibers (vol 134, pg 45127, 2017)

机译：用木质微纤维的3,4-亚乙二氧基噻吩的聚合机械增强导电薄膜（Vol 134，PG 45127,2017）

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Understanding the failure mechanisms of resin-coated proppants under extreme environments facilitates the development of stronger proppants for superior long-term performance in the oil and gas sector. In the current study, the leaching behavior of Novolac resin-coated proppants (RCPs) and that of polyurethane (PU) based RCPs with aqueous media under different pH conditions and at elevated temperatures have been critically examined, to assess their chemical stability and integrity. Our study indicates that Novolac-based RCPs are substantially more stable to leaching conditions at 250 degrees F compared to PU-based RCPs. An in-depth nuclear magnetic resonance analysis of the aqueous leachates from the RCP systems reveals that the averaged total levels of the leached components from the PU-based RCPs is five- to sevenfold higher than those of the Novolac RCPs at the higher temperature. In addition, a critical examination of the Novolac RCPs from a product safety and environmental health viewpoint is accomplished by ultraviolet-visible spectrophotometric analysis of the aqueous leachates. The findings reveal that the concentrations of the phenolics, including free phenol, are lower than the detectable limits (1 ppm) of the technique. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45845.
机译：了解极端环境下树脂涂层支撑剂的失效机制有助于在石油和天然气部门的卓越长期性能下开发更强的支撑剂。在目前的研究中，在不同pH条件下，酚醛清漆树脂涂覆的支链剂（RCP）的浸出行为和基于水性介质的含水介质和在升高的温度下的含水介质的浸出行为已经受到严重检查，以评估其化学稳定性和完整性。我们的研究表明，与PU基RCP相比，基于酚醛清漆的RCP与250度的浸出条件大致稳定。来自RCP系统的含水渗滤液的深入核磁共振分析表明，来自PU系RCP的浸出组分的平均总水平比在较高温度下高于酚醛清漆RCP的5至7倍。此外，通过紫外线可见的分光光度分析来实现对产品安全和环境健康观点的临界检查来自产品安全和环境健康观点的紫外线可见分光光度分析。结果表明，酚类的浓度（包括游离苯酚）低于该技术的可检测限制（＆ 1 ppm）。 （c）2017 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,45845。

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