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180204丨适用于碳纤维板材的聚氨酯涂料的制备与性能

   日期:2018-02-06     作者:夏海渤,赵民等    浏览:1285    评论:0    
核心提示:中文核心期刊,中国科技核心期刊! DOI: 10.19289/j.1004-227x.2018.02.004适用于碳纤维板材的聚氨酯涂料的制备与性能夏海渤1,
 

中文核心期刊,中国科技核心期刊!


 

 

 

 

 

 

 

 

 

 

 

DOI: 10.19289/j.1004-227x.2018.02.004

适用于碳纤维板材的聚氨酯涂料的制备与性能

 

 

 

 

 

 

夏海渤1,赵民1,王浩2,温福山3,丁若男2,刘东2(1.中车青岛四方机车车辆股份有限公司,山东 青岛 266111;2.中国石油大学(华东)重质油国家重点实验室,山东 青岛 266580;3.中国石油大学(华东)材料物理与化学系,山东 青岛 266580)

摘要:  采用蓖麻油、甲苯二异氰酸酯(TDI)、KH570 改性的纳米ZnO、SiC 微粉、钛白粉等物质制备了一种适合涂装碳纤维板材的聚氨酯色漆。探讨了TDI、改性纳米ZnO 和SiC 的添加量对漆膜性能的影响。得到色漆的最佳配方(质量分数)为:TDI 12.0%,三羟甲基丙烷3.0%,蓖麻油36.0%,钛白粉5.0%,改性纳米ZnO 1.5%,SiC 微粉6.0%,助剂1.0%,二甲苯15.0% ~ 25.0%,醋酸丁酯15.0%。将所制聚氨酯色漆涂覆在用中车475 活性剂处理过的碳纤维板材上,漆膜的附着力为6.21 MPa,且耐酸性、耐碱性、耐水性和柔韧性较好,150 °C 高温处理48 h 不发生起皱、脱皮等现象,达到了中车涂装技术标准,适合工业化作业。

关键词:聚氨酯涂料;碳纤维板;活化剂;附着力;耐化学品性

中图分类号:TQ630.7             

文献标志码:A                  

文章编号:1004 – 227X (2018) 02 – 0061 – 06

 

 

 

Preparation and properties of polyurethane coating applicable to carbon fiber sheet//XIA Hai-bo, ZHAO Min,WANG Hao, WEN Fu-shan, DING Ruo-nan, LIU Dong*

 

 

Abstract:A polyurethane paint applicable to carbon fiber sheet was prepared from castor oil and toluene-2,4-diisocyanate (TDI) with KH570-modified nano-ZnO, SiC micro-powder, and titania. The effects of the amounts of TDI, modified nano- ZnO and SiC on properties of its film were studied. The optimal formulation of the paint was obtained as follows: TDI 12.0wt.%, trimethylolpropane 3.0wt.%, castor oil 36.0wt.%, titania 5.0wt.%, modified nano ZnO 1.5wt.%, SiC powder 6.0wt.%, auxiliary agents 1.0wt.%, xylene 15.0-25.0wt.%, and butyl acetate 15.0wt.%. The polyurethane paint was coated on the surface of carbon fiber sheet treated previously by CRRC-475 activator. The film obtained therefrom has an adhesion strength of 6.21 MPa, and good performance in the tests of acid resistance, alkali resistance, water resistance, and

flexibility. The film does not wrinkle or peel off after being heated at 150 °C for 48 h. All results reaches the CRRC   technical standards for painting, showing that the paint is suitable for industrialization.

Keywords: polyurethane paint; carbon fiber sheet; activator; adhesion strength; chemical resistance

First-author’s address:CRRC Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., Qingdao 266111, China

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