季铵盐改性膨润土制备润滑脂的研究.pdf

2016年2月
润滑与密封
Feb.2016
第41卷第2期
LUBRICATION ENGINEERING
Vol 41 No. 2
DOI:10.3969/f.isn.0254-0150.2016.02.020
季铵盐改性膨润士制备润滑脂的硏究
张东浩2陈汉林蒋明俊郭小川马雨璇“梁金祖2
1.后勤工程学院军事油料应用与管理工程系重庆401311;2.62154部队湖北襄阳441031
3.69052部队新疆乌鲁木齐830002;4.69051部队新疆奎屯833200)
摘要:以钙基膨润土为原料,采用季铵盐对其进行化改性,考察钠化改型、有机改性和处理工艺等对膨润土润滑8
脂性能的影响,分析有机膨润土层状结构与膨润土润滑脂性能的关系。结果表明,当有机改性剂十八烷基三甲基氯化铵
的添加量为1.0CC(阳高子交换容量),润土与水溶液、改性剂与水溶液的固液比为1:10,NaCO的添加量为3
3%,磷酸添加量为5%,钠化反应温度为60℃,反应时间为30min,有机改性反应温度为80℃,反应时间为60min,
每次添加800mL水溶液,抽滤洗涤4次,干燥温度为80℃,粉碎过筛200目时,制备的膨润土性能较好,膨润土层间
距变化与其制备润滑脂的稠度无直接关联。采用自制的改性膨润土制备的膨润土润滑脂,与市售的有机膨润土制备的膨
润土润滑脂的性能相当,且具有更好的钢网分油性能。
关键词:钙基膨润土;钠化改型;有机改性;膨润土润滑脂
中图分类号:TE626.4文就标志码:A文章编号;0254-0150(2016)02-100-07
Study on Preparation of Bentonite Grease Based on
Ammonium-modified Bentonite
ZHANG Donghao CHEN Hanlin JIANG Mingiun Guoxiaochuan
MA Yuxuan LIANG Jinzu?
( 1. Department of Oil Application &Management Engineering, Logistics Engineering College, Chongging 401311
China; 2. No 62154 Unit of PLA, Xiangyang Hubei 441031, China; 3. No.69052 Unit of PLA, Urumq
Xinjiang 830002, China; 4. No69051 Unit of PLA, Kuitun Xinjiang 833200, China)
Abstract: Effecting factors of preparing quaternary ammonium bentonite grease including sodium modification, organic
modification and treatment process were examined with Ca-bentonite as raw materials. The relationship of layer structure of
the organic bentonite with its lubrication properties was analyzed. The results show that the optimum conditions of high
quality quaternary ammonium bentonite grease are that adding amount of octadearyl dimethyl ammonium chloride 1. OCEC
(cation-exchange capacity ),the ratio of bentonite to liquid 1: 10, the ratio of modifier to liquid 1: 10, the adding amount
of Na 0 3%, adding amount of phosphate acid 5, sodium modification temperature 60, sodium modification time 30
min, organic modification temperature 80 C, organic modification time 60 min, filtration washing 4 times, adding800 m!
water solution every time, crushing and sieving 200 mesh. There exists no direct connection between changes of bentonite
layer spacing and that of bentonite grease consistency. Two kinds of bentonite grease prepared by self-modified organic ben
tonite and commercial organic bentonite grease have equally good properties with high temperature performance and good
colloidal stabilit
Keywords: Ca-bentonite; sodium modification; organic modification; bentonite grease
膨润土润滑脂是一种高滴点、高性能润滑脂,广泛用于高温、高负荷低转速的机械润滑部位21。
膨润土润滑脂在我国润滑脂年总产量中所占比例较
基金项目:重庆市博士后基金项目(R20135xn0118)小,因而发展膨润土润滑脂具有广阔的市场前景。
收稿日期:2015-05-12
作者简介:张东浩(1990-),男,硕土研究生,研究方向为润我国膨润土矿产资源丰富“,其中多为钙基膨润土。
滑脂理论与应用
天然出产的膨润土不能直接用于生产膨润士润滑脂,
通讯作者:陈汉林(1974-),男,博士后,研究方向为摩擦化需进行有机改性。工业上常使用季铵盐阳离子改性剂
学与润滑添加剂.E-mail:i@163.com
对膨润土进行改性。生产过程中,阳离子改性剂通过