usingFTIRanalysisinthetemperaturerangefrOm20tO400 ThethermaldegradatiOnbehaviOrsOfpOlyester-pOlyurethane andpOlyether-pOlyurethaneindifferentatmOspheres ereinvestigatedbyusingthermOgravimetryanalysis C TG ) inth
The chemical composition, density, and modulus of PU foams as a function of processing temperatures (25掳C, 45掳C, and 85掳C) is presented. Degradation of uretoneimine cross-links and the emergence of carbodiimide functional groups are monitored and the remaining composition in the PU foam is...
Fourier‐transform infrared spectral studies of an amorphous linear aromatic polyurethane at various temperatures were performed. Hydrogen bonding was studied in the NH stretching (3347 cm 1 ) and the bending (1535 cm 1 ) regions, using the band decomposition technique. The variations with ...
(香港理工大学屋宇设备工程系,香港) 刊名: 光谱学与光谱分析 英文刊名: SPECTROSCOPY AND SPECTRAL ANALYSIS 年,卷(期): 2006,26(4) 被引用次数: 19次 参考文献(11条) 1.Duquesne S;Bras M L;Bourbigot S Thermal degradation of polyurethane and polyurethane/expandable graphite coatings[外文期刊] 2001(...
Siesler, H.W., Rheo-optical Fourier Transform IR Spectroscopy of Polyurethane Elastomers - 1. Principle of the Method and Measurements at Ambient Temperature. Polymer Bulletin, 1983. 9: p. 382-389.H . W . SIESLER, Rheo-optical fourier transform IR (FTIR) spectroscopy of polyurethane ...
Flyer: Instrument service plans Application Note: FTIR analysis of gases produced by the thermal decomposition of polyurethane foams Brochure: Introduction to Gas Phase FTIR Spectroscopy Product Information Nicolet iG50 FT-IR Spectrometer Product Specifications Nicolet iG50 Spectrometer Baseplate订购...
Study of FTIR Spectra and Thermal Analysis of Polyurethane J IA N G Zhi 1 , YU A N Kai2j un 1 , L I Shu2f en 1 3 , C HO W W K 2 1 . Dep art ment of Chemical Physic s , U niver sit y of Science a nd Technolo gy of China , Hef ei 230026 , China ...
A method for introducing the uretoneimine structure involves the use of liquid 4,4′-methylenediphenyl diisocyanate (MDI), a commonly used isocyanate in polyurethane formation. MDI was developed as a replacement material for toluene diisocyanate (TDI) due to the hazardous nature of TDI. The modif...
3.聚酰胺(Polyamide)、聚丙烯酸酯(Polyacrylate)、聚氨酯(Polyurethane)等大类的材料需要判定具体结构的,红外光谱无法鉴别,需采用其他方法,价格另行商议; 4.橡胶主成份推荐使用PGC-MS方法来测试较为便捷. 5.样品要求:固体粒状、块状或片状,液体样品 50g左右,薄膜样品A4大小左右即可. 使用...
The Interaction between La and Polyurethane Syste LIU Zhi 1 ,LIU Xin-hai 2 ,CAO Chi-ch ng 3 ,SUN Xian-yu 1 ,eENG Shi-fu 1 ,XU Duan-fu 2 ,eU Jin-guang 1! 1 Th Stat K y Laboratory of Rar Earth Mat rials Ch mistry and Applications,Coll g of Ch mistry and Mol cular Engin ...