...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Modified melamine-formaldehyde resins improve tensile strength along with antifouling and flame retardancy in impregnation of cellulose paper
【24h】

Modified melamine-formaldehyde resins improve tensile strength along with antifouling and flame retardancy in impregnation of cellulose paper

机译：改性的三聚氰胺 - 甲醛树脂随着纤维素纸的浸渍而改善拉伸强度以及防污和阻燃性

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

In this study, polyvinyl alcohol (PVA) and benzoguanamine (BG) modified melamine-formaldehyde (MF) resins were used to prepare two high-pressure laminates (HPLs) as well as a pure cellulose paper laminate and core sandwich laminates with the core material of aramid paper (AP) or polypropylene non-woven fabric (PPNF). The tensile strength, flame retardancy and antifouling properties of the modified MF resin laminates were studied and compared with the MF resin laminate. The tensile test results showed that the MF resins modified with BG and PVA improved the tensile strength of the impregnated paper. In comparison with pure kraft cellulose paper laminates, the aramid paper core laminates displayed comparatively higher tensile strength. Antifouling test results indicated that modified MF resin laminates had no obvious change while the MF resin laminate was stained. Thermal stability of the modified resins was investigated by thermogravimetric (TG) analysis and the results showed that the char yield of modified MF resin was higher than that of the unmodified MF resin due to the addition of BG. The modified MF resin laminates exhibited better flame retardancy properties through the analysis of limiting oxygen index (LOI), vertical burning and cone calorimetry (CONE) compared to the MF resin laminate. In addition, the flame retardancy of laminates was further enhanced when prepared with core materials of aramid paper. Scanning electron microscopy analysis of residue char after CONE tests showed that the AP-core laminate formed a dense and stable char layer compared with the loose char layer of the PPNF-core laminate. This study shows a new direction to develop sustainable high-performance flame retardant laminates for commercial decoration application.
机译：在该研究中，使用聚乙烯醇（PVA）和苯并胍胺（BG）改性的三聚氰胺 - 甲醛（MF）树脂制备两个高压层压板（HPLS）以及纯纤维素纸层压板和芯夹层与芯材料层压板芳族聚酰胺纸（AP）或聚丙烯无纺布（PPNF）。研究了改性MF树脂层压板的拉伸强度，阻燃性和防污性能，并与MF树脂层压板进行比较。拉伸试验结果表明，用BG和PVA改性MF树脂改善了浸渍纸的拉伸强度。与纯牛皮纸层压板相比，芳族纸芯片层压板相对较高的拉伸强度。防污测试结果表明，改性的MF树脂层压板在染色MF树脂层压板时没有明显的变化。通过热滴定（Tg）分析研究改性树脂的热稳定性，结果表明，由于添加Bg，改性MF树脂的炭产率高于未修饰的MF树脂。与MF树脂层压板相比，改性MF树脂层压材料通过分析限制氧指数（LOI），垂直燃烧和锥形量热法（锥形）来表现出更好的阻燃性能。此外，当用芳纶纸的核心材料制备时，层压板的阻燃性进一步增强。锥形试验后残留物的扫描电子显微镜分析表明，与PPNF芯层压板的松散炭层相比，AP芯层压板形成了致密且稳定的炭层。本研究表明，为商业装饰应用开发可持续高性能阻燃层压材料的新方向。

著录项

  • 来源
    《RSC Advances》 |2019年第63期|共8页
  • 作者

  • 作者单位
  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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