Sabic是化学工业的全球领导者，今天宣布其最近推出的Noryl™AP2001G芳香族聚醇可显着改善基于甲基二苯基二氰酸二异氰酸酯（MDI）（MDI）和聚甲基甲基乙烯乙烯乙烯乙烯乙二醇（PTMG）的热铸铸聚氨酯（PUS）的性能。
By boosting the hardness, toughness and stiffness properties of cast PU by double digits, NORYL AP2001G polyol can enable MDI formulations cured with 1,4-butanediol (BDO) to deliver equivalent or better performance compared to toluene diisocyanate (TDI) and PTMG PU formulations cured with MOCA (4,4'-methylene bis(ortho-chloroaniline)).
由于在欧盟中使用MOCA作为非常关注的物质（SVHC）的审查越来越大，许多PU制造商采用了包括MDI-BDO在内的替代配方。但是，现有的MDI-BDO系统构成了性能挑战，包括较低的机械和化学性质与TDI-MOCA系统。SABIC的NORYL AP2001G Polyol用于MDI-BDO系统既解决现有材料的SVHC问题和性能缺陷，从而为配方器提供了用于TDI配方的替代解决方案，并提供了减少或消除MOCA的机会。亚博网站下载
“随着制造商开始从SVHCS过渡，Sabic了解需要协助客户应对这一挑战的必要性。”said Antonello Cerullo, Ph.D., senior business development manager, SABIC.“We collaborated with Troy Polymers to validate the notable performance benefits of our new NORYL polyol for MDI-BDO systems. Thanks to our innovative new modifier, customers may now achieve results comparable to – or even better than – what they experienced with TDI-MOCA and MDI-BDO formulations, while staying ahead of the tighter restrictions that are being placed on the MOCA curative.”
VALIDATING PERFORMANCE PROPERTIES VS. MDI-BDO PUS
SABIC engaged Troy Polymers, a leading research and development laboratory based in Madison Heights, Mich., in the United States, to formulate PU samples using NORYL AP2001G polyol and conduct extensive testing and validation. The results showed that NORYL AP2001G polyol (at a loading of 5.6 percent) improved several properties of MDI-BDO cast PU formulations.
SABIC修饰符的韧性增加了30％，突破性时的拉伸压力提高了26％，突破时的伸长率提高了8％，并且在岸上硬度达到1.4分。
测试还表明，Noryl AP2001G多醇可以在高达70°C的高温下增强硬度和韧性性能，这可能允许MDI-BDO铸造PU用于极端条件，例如油气勘探，垫圈和采矿。
就加工性而言，当将NORYL AP2001G多醇添加到预聚合物中时，铸造PU显示出比基线MDI-BDO系统更长的锅寿命。可以下载有关测试方法和结果的详细信息here。
“根据我们在创新聚氨酯溶液方面的丰富经验，我们验证了Sabic的Noryl AP2001G聚醇对基于MDI-BDO系统的铸造聚氨酯的好处，”Troy聚合物研究总监Aisa Sendijarevic博士说。“尽管MDI-BDO技术可以在某些应用中替代TDI-MOCA，但添加NORYL AP2001G Polyol可显着提高MDI-BDO的性能，并提供一种不含非常关注的物质的替代性。我们的测试结果表明，这种sabic聚醇可提高铸造聚氨酯的性能和调节性依从性。”
在欧洲欧洲的Sabic展示
Cerullo将提供标题为技术演讲，“PPE oligomers for improved PU materials”at UTECH Europe on November 17, from 3:15-3:30 p.m. Central European Time (CET), in Maastricht, The Netherlands. He will share data and describe how using NORYL AP2001G polyol can enhance MDI-BDO cast elastomer performance compared to both a standard MDI-BDO and a TDI-MOCA formulation. Register for the eventhere。
来源：https://www.sabic.com/en/