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首页> 外文期刊>Journal of Applied Polymer Science >Wettability and interfacial phenomena investigations on high-density polyethylene and petroleum coke
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Wettability and interfacial phenomena investigations on high-density polyethylene and petroleum coke

机译：高密度聚乙烯和石油焦的润湿性和界面现象研究

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摘要

An in-depth wettability and interfacial phenomena investigation was carried out to study interactions between high density polyethylene (HDPE) and petroleum coke. The aim is to investigate the effect of temperature and contact times on possible interactions and adhesion characteristics for partially substituting coal-tar pitch binder with waste polymers. Using a sessile drop arrangement, experimental assemblies consisting of ground HDPE and a petroleum coke substrate were heat treated in the temperature range of 150-350°C for 15-60 min. Contact angles between molten HDPE and petroleum coke surface and depth of penetration of HDPE into petroleum coke substrate were measured. The highest contact angle (131.5°) was observed at 250°C after 15 min. and lowest contact angle (30.9°) was observed at 350°C after 60 min. Highest penetration depth (75 μm) was observed at 350°C after 60 min and lowest penetration (13 μm) at 200°C after 15 min. Analysis of results showed that increasing time and temperature of heat treatment had a significant impact on the interactions of molten HDPE with petroleum coke. Longer residence time and higher temperatures increased the extent of melting of HDPE, which in turn resulted in improved wettability and deeper penetration into petroleum coke substrate. HDPE was found to bind and adhere strongly with petroleum coke.
机译：进行了深入的润湿性和界面现象研究，以研究高密度聚乙烯（HDPE）与石油焦之间的相互作用。目的是研究温度和接触时间对用废弃聚合物部分替代煤焦油沥青粘合剂的可能的相互作用和粘合特性的影响。使用无滴装置，将由研磨的H​​DPE和石油焦基质组成的实验组件在150-350°C的温度范围内热处理15-60分钟。测量熔融的HDPE与石油焦表面之间的接触角以及HDPE渗入石油焦基质的深度。 15分钟后在250°C时观察到最高接触角（131.5°）。 60分钟后在350°C观察到最低接触角（30.9°）。 60分钟后在350°C观察到最高的渗透深度（75μm），而15分钟后在200°C观察到最低的渗透深度（13μm）。结果分析表明，增加热处理的时间和温度对熔融HDPE与石油焦的相互作用具有显着影响。更长的停留时间和更高的温度增加了HDPE的熔融程度，进而提高了可湿性并更深地渗透到石油焦炭基质中。发现HDPE与石油焦结合并牢固结合。

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