聚氨酯預聚物 的英文怎麼說
中文拼音 [jùānzhǐyùjùwù]
聚氨酯預聚物
英文
polyurethane prepolymer-
Test method for isocyanate groups in urethane materials or prepolymers
氨基甲酸乙酯材料或預聚物中異氰酸酯基團的試驗方法The ordered and micro - phase structures of the molecular of pu materials are decided directly by its synthesis technology, composition and other materials compounded with it, and they will influence the possessive properties of pu materials. in this paper, general studies on pu have been carried out by the methods of controlling the prepolymerize technology, taking off dissociative tdi from prepolymer through decompress boiling distilling technology, polymerized in - situ with nano - particles and interpenetrated with ps, the relationship between properties and structure of pu / omt, pu / sio2 nano - composites and pu / ps ipns were characterized by ftir, dmta, tem andtga
本文用控制預聚體反應中單體的摩爾比、減壓共沸蒸餾去除預聚體中游離tdi 、用納米填料參與聚氨酯原位復合和與聚苯乙烯進行互貫等方法，合成了聚氨酯蒙脫土納米復合材料、聚氨酯sio _ 2納米復合材料和兩步法合成的基於聚醚（ ppg ）和聚酯（ 3010 ）的聚氨酯苯乙烯互穿網路聚合物材料，研究了其性能；運用ftir 、 dmta 、 tem 、 tga等表徵手段，對復合材料的結構進行了研究。The polyurethane ( pu ) membranes modified with silk fibroin ( sf ), made from sf protein and liquid prepolymer with terminal - isocyanate groups, were obtained by the process of prepolymer having reaction on the surface of sf membranes and then controlling the moisture of system and the solution conditions
摘要以再生絲素蛋白和液狀端異氰酸酯基預聚物為原料，使預聚物在絲素膜界面發生化學反應，再通過控制相對濕度和溶解條件，制備了絲素改性聚氨酯膜。( 3 ) volume shrinkage of composite decreases greatly with wpu increasing, even can arrive a negative number, but thermal stability is still good. ( 4 ) toughening mechanism is that : the formation of high molecular linear amino formate construct is the toughening reason ; hydroxyl - terminated pu - prepolymer and pf react to produce chemical bond effect which participate cure ; carboxyl - terminated pu - prepolymer and pf form semi - ipn which make toughened pf occur maximum
（ 4 ）通過紅外光譜對pf / pu共混物分子結構進行的定性分析、以及掃描電鏡對沖擊斷面形貌進行的分析，可證明聚氨酯預聚物增韌酚醛樹脂的機理是：兩個體系都是由於高分子量的線形氨基甲酸酯結構而增韌；端羥基pu與pf在共固化中產生化學鍵效應，參與pf的固化；而端羧基pu則與pf形成半互穿網路而增韌。The development of a two - component elastic polyurethane sealing material for the anti - seepage of channel is described herein, and then the performed polymer structure, the molar ratio of iaocyanate to hydroxide radical and the effects from the components of the compounded curing agent on the performance of the material are discussed as well
摘要介紹了一種用於管道防滲止水的雙組分聚氨酯彈性密封材料的開發，並討論了基劑預聚體聚合物結構、異氰酸酯和羥基的摩爾比以及復合固化劑組分對材料性能的影響。The preparation method of silylated polyurethane sealant and the influences of different silanes on sealant properties are also described
介紹了硅烷偶聯劑改性聚氨酯預聚物的方法和密封膠的配製以及不同的硅烷偶聯劑對改性聚氨酯密封膠性能的影響。Testing methods for tolylene diisocyanate type prepolymers for thermosetting urethane elastomers
熱固性聚氨酯彈性體用甲苯二異氰酸酯預聚物的試驗方法Tdi standard test method for unreacted toluene diisocyanates in urethane prepolymers and coatings solution by gas chromatography
氣相色譜法測定氨基甲酸酯預聚物和塗料溶液中未反應的甲苯二異氰酸酯Test method for polyurethane raw materials : determination of acidity in low acidity aromatic isocyanates and polyurethane prepolymers
聚氨基甲酸乙酯原材料試驗方法:低酸性芳族異氰酸鹽酯和聚氨基甲酸乙酯預聚物酸度的測定Standard test method for polyurethane raw materials determination of acidity in low - acidity aromatic isocyanates and polyurethane prepolymers
聚氨基甲酸乙酯原料的標準試驗方法:低酸度芳香異氰酸酯和聚氨基甲酸乙酯預聚物中酸度的測定Plastics - basic materials for polyurethanes. determination of the free tolyylenediisocyanate content of prepolymers gas chromatography method
聚氨基甲酸乙酯塑料基材料.預聚合物氣相色譜分析法中游離二異氰酸二苯乙烯含量的測定分享友人