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180202丨纳米钛改性聚合物的制备及其在涂层中的应用

放大字体  缩小字体 发布日期:2018-02-06  作者:李少香,曲文娟等  浏览次数:1430
核心提示:中文核心期刊,中国科技核心期刊! DOI: 10.19289/j.1004-227x.2018.02.002纳米钛改性聚合物的制备及其在涂层中的应用李少香*,
 

中文核心期刊,中国科技核心期刊!


 

 

 

 

 

 

 

 

 

DOI: 10.19289/j.1004-227x.2018.02.002

纳米钛改性聚合物的制备及其在涂层中的应用

 

 

 

 

李少香*,曲文娟,刘猛,王渴望,王杰(青岛科技大学,山东 青岛 266042)  

摘要:  通过高速球磨与硅烷偶联剂KH560 及环氧树脂接枝的物理−化学结合法处理2 500 目的钛粉,得到纳米钛改性聚合物,利用重力沉降法和质量法测试了它的分散性。当以球料比4∶1 和转速700 r/min 球磨4 h,以及KH560 的使用量为钛粉质量的1.0%时,所得纳米钛改性聚合物的分散性最好。纳米钛改性聚合物在离心烘干后有明显的分层。根据X 射线衍射和热重分析的测试结果推断,离心管最上层的物质才是目标产物。以改性较好的纳米钛聚合物作为原料,与环氧树脂及其固化剂一起在马口铁上制备了涂层。当纳米钛改性聚合物含量为8.0%(质量分数,后同),消泡剂、流平剂和润湿分散剂分别为0.1%、0.2%和0.5%时,所制环氧涂层的力学性能和耐腐蚀性能最好。

关键词:纳米钛;环氧树脂;改性;硅烷偶联剂;球磨;耐蚀性;力学性能

中图分类号:TQ630.7             

文献标志码:A                  

文章编号:1004 – 227X (2018) 02 – 0046 – 08

 

 

Preparation of nano-titanium-modified polymer and its application in coating//LI Shao-xiang*, QU Wen-juan,LIU Meng, WANG Ke-wang, WANG Jie

 

Abstract:Titanium powder with a mesh size of 2 500 was treated by physical method (i.e. ball milling at a high speed) combined with chemical method (i.e. grafting to epoxy resin through silane coupling agent KH560), and a nano-titaniummodified polymer was then obtained. Its dispersibility was tested by gravitational sedimentation and weighing method. The nano-titanium-modified polymer produced via ball milling at a ball-to-powder ratio of 4:1 and a speed of 700 r/min for 4 h

and modification by 1.0% (with respect to the mass of titanium powder) of KH560 has the optimal dispersibility, but is divided into layers after centrifugation and drying. According to the results of X-ray diffraction and thermogravimetric analysis, it is inferred that the matter at the top of centrifuge tube is the target product. The nano-titanium-modified polymer was used to prepare coatings with epoxy resin and its curing agent on tinplates. The epoxy coating prepared with nano-titanium-modified polymer 8.0wt.%, defoamer 0.1wt.%, leveling agent 0.2wt.%, and wetting agent 0.5wt% has the best mechanical properties and corrosion resistance.

Keywords: nano-titanium; epoxy resin; ball milling; modification; silane coupling agent; corrosion resistance; mechanical property

First-author’s address:Qingdao University of Science and Technology, Qingdao 266042, China

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