• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of coatings technology and research >Effect of polysiloxane additives on the scratch resistance of an acrylic melamine automotive clearcoat
【24h】

Effect of polysiloxane additives on the scratch resistance of an acrylic melamine automotive clearcoat

机译：聚硅氧烷添加剂对丙烯酸三聚氰胺汽车透明涂料耐刮擦性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Many attempts have been carried out to increase the scratch resistance of clearcoats using various appropriate additives. These additives may increase surface hardness or surface slippage, and/or enhance the bulk mechanical strength of the clearcoat. In the present study, the influence of various added loads of three differently structured polysiloxane additives on the scratch resistances of an acrylic melamine clearcoat was investigated. A series of analytical instruments, such as a laboratory carwash simulator, a scanning electron microscope, an optical microscope and an attenuated total reflectance Fourier transform infrared spectroscope, and others were used to compare the effects of the various added contents of polysiloxane additives on changes in the viscoelastic properties and scratch morphologies of the resultant clearcoats. The results illustrated that all polysiloxane additives improve the scratch resistance of such clearcoats, yet the optimum load varied for each individual additive. There is also a good indication that polyether-modified polysiloxanes improve scratch resistance by increasing surface hardness, while the fluorocarbon-modified polysiloxane tends to change the viscoelastic properties of the clearcoats. It was also found that scratch resistance varied linearly with Micro-Vickers' hardness for brittle clearcoats.
机译：已经进行了许多尝试以使用各种合适的添加剂来增加透明涂层的耐刮擦性。这些添加剂可增加表面硬度或表面滑爽度，和/或增强透明涂层的整体机械强度。在本研究中，研究了三种不同结构的聚硅氧烷添加剂的各种添加负荷对丙烯酸三聚氰胺清漆的耐刮擦性的影响。一系列分析仪器，例如实验室洗车模拟器，扫描电子显微镜，光学显微镜和衰减全反射傅里叶变换红外光谱仪，以及其他分析仪器，用于比较各种添加量的聚硅氧烷添加剂对产品变化的影响。所得清漆的粘弹性和刮痕形态。结果表明，所有聚硅氧烷添加剂均改善了此类透明涂料的耐刮擦性，但每种单独的添加剂的最佳负载都不同。也有很好的迹象表明，聚醚改性的聚硅氧烷通过提高表面硬度来改善耐刮擦性，而碳氟化合物改性的聚硅氧烷则倾向于改变透明涂层的粘弹性。还发现，对于脆性清漆，耐刮擦性随Micro-Vickers硬度线性变化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号