• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Maleopimaric acid-modified two-component waterborne polyurethane for coating applications
【24h】

Maleopimaric acid-modified two-component waterborne polyurethane for coating applications

机译：马来海马酸改性的两组分水性聚氨酯在涂料中的应用

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

Maleopimaric acid (MPA), an important rosin derivative, was used to partially substitute isophthalic acid for the preparation of an anionic polyol (MPP) dispersion. The MPP dispersion was then applied to prepare a novel maleopimaric acid-modified two-component waterborne polyurethane (MPP-2K-WPU). The influences of NCO:OH molar ratio on the thermal properties, water absorption, surface free energy, and application properties of MPP-2K-WPU films were investigated. With increasing NCO:OH molar ratio, the thermal stability, pencil hardness, and ethanol resistance of MPP-2K-WPU films were improved, but the water resistance was enhanced firstly and then weakened. The surface free energy of MPP-2K-WPU films mainly depended on the dispersion interaction which was related to the structure of macromolecules. In addition, compared with the control sample of PP-2K-WPU(1.5:1) film, the MPP-2K-WPU(1.5:1) film exhibited improved thermal stability, water resistance, gloss, pencil hardness, and ethanol resistance. (c) 2015 Wiley Periodicals, Inc.
机译：马来海马酸（MPA）是一种重要的松香衍生物，用于部分取代间苯二甲酸，以制备阴离子多元醇（MPP）分散体。然后，将MPP分散体用于制备新型马来酸改性的两组分水性聚氨酯（MPP-2K-WPU）。研究了NCO：OH摩尔比对MPP-2K-WPU薄膜的热性能，吸水率，表面自由能和使用性能的影响。随着NCO：OH摩尔比的增加，MPP-2K-WPU薄膜的热稳定性，铅笔硬度和耐乙醇性得到改善，但耐水性先增强后减弱。 MPP-2K-WPU薄膜的表面自由能主要取决于与大分子结构有关的分散相互作用。此外，与PP-2K-WPU（1.5：1）膜的对照样品相比，MPP-2K-WPU（1.5：1）膜具有改善的热稳定性，耐水性，光泽度，铅笔硬度和耐乙醇性。 （c）2015年威利期刊有限公司

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