添加稻壳基陶瓷颗粒改善液体石蜡润滑特性
发布时间:2018-04-14 03:02
本文选题:润滑 + 颗粒 ; 参考:《农业工程学报》2017年10期
【摘要】:为了实现稻壳资源的综合利用,变废为宝,以稻壳和酚醛树脂为原料,高温碳化制备出稻壳基陶瓷颗粒(rice husk ceramic,RHC),将其作为润滑油功能添加剂,可缓解稻壳焚烧和储存给环境带来的危害。在四球机上探究不同温度(25、75和100℃)和司盘-80分散剂存在条件下,不同添加量(质量分数为0.01%、0.03%和0.05%)的RHC颗粒对液体石蜡(liquid paraffin,LP)润滑特性的影响,进而研究RHC颗粒的摩擦学行为。结果表明,25和75℃下,RHC颗粒在一定程度上改善了液体石蜡润滑性能,主要表现在钢球表面磨斑直径的降低,抗磨性增强,但并未明显降低摩擦系数;100℃下,RHC颗粒可明显改善液体石蜡的润滑特性,添加量为0.01%、0.03%和0.05%的油样与纯液体石蜡相比,平均摩擦系数从0.139(LP)分别降低到0.083、0.064和0.069;平均磨斑直径从0.389 mm(LP)分别降到0.314、0.311和0.318 mm。高温下摩擦诱导RHC颗粒组分参与边界润滑膜形成,起到抗磨减摩的功效。RHC颗粒可作为潜在的高温润滑油摩擦改进剂。
[Abstract]:In order to realize the comprehensive utilization of rice husk and turn waste into treasure, rice husk and phenolic resin were used as raw materials to produce rice husk based ceramic pellet (rice husk ceramic), which was used as lubricating oil functional additive.It can alleviate the harm of rice husk incineration and storage to the environment.In the presence of different temperatures (2575 and 100 鈩,
本文编号:1747395
本文链接:https://www.wllwen.com/kejilunwen/shiyounenyuanlunwen/1747395.html