Oil-modified urethanes is prepared with vegetable oil and TDI as main materials, which is then neutralized to form the waterborne oil-modified urethanes. 以植物油、TDI为主要原料合成氨酯油,中和后加入水分散得水性氨酯油溶液。
Silicones and urethanes are by far the leading sealant products followed by latex and butyl rubber. 到目前为止密封剂产品主要是硅树脂和聚氨酯橡胶,其次是乳胶和丁基橡胶。
Investigation of Three-body Abrasive Wear Mechanism of Polymer Urethanes Composites Reinforced by High Strength Pearlitic Steel Wire 高强度珠光体钢丝增强聚氨酯复合材料的三体磨料磨损研究
Medical thermoplastic polyether urethanes ( TPU) based on MDI/ PTMG/ BDO system were prepared by one-shot, prepolymer and semi-prepolymer processes with equivalent stoichiometries respectively. 在系统中,以一步法和预聚法为对照,研究了半预聚法对医用热塑性聚氨酯(TPU)结构和性能影响。
Study on polyurea urethanes of various soft segmental structure curing reaction kinetics 不同软段结构对聚脲基氨酯扩链反应动力学的影响研究
This article introduces deposition process of parylene, properties of parylene, applications of parylene and parylene deposition equipment. The properties are compared with those reported for other conformal coating materials such as epoxides, silicones, and urethanes. 简述了Parylene涂层的性能,对Parylene涂层的沉积过程、沉积设备和Parylene涂层的应用领域进行了论述,并对Parylene涂层的性能与环氧树脂、有机硅树脂、聚氨酯涂层的性能进行了比较。
Studies on crystal hard domain of segmented polyether urethanes 硬链段结晶性嵌段聚醚聚氨酯的合成研究
The bulk morphology and surface composition of biomedical devices of segmented polyether urethanes ( SPEU) made hy the methods of solution molding are affected by the properties of solvents used. 由多嵌段聚醚型聚氨酯(SPEU)溶液成型加工所得制品的本体形态和表面化学结构受到配制溶液所用溶剂的显著影响。
Structure of polyester urethanes have been analyzed by pyrolysis gas chromatography/ mass spectrometry ( PY GC/ MS). 应用PyGC/MS联用技术对聚酯型聚氨酯的结构组成进行了研究。