1) polyurea
聚脲
1.
Preparation and properties of Fe_3O_4 polyurea microcapsules;
Fe_3O_4聚脲微胶囊的制备及性能
2.
Study on the Synthesis and Characterization of Aromatic/Aliphatic Co-polyureas;
芳香/脂肪族聚脲的合成与表征
3.
Preparation of polyamide-polyurea macrocapsule and its release behaviour;
聚酰胺-聚脲大胶囊的制备及其缓释性能的研究
2) polysulfide thio-polyurea
聚硫聚脲
1.
The synthesis, structural and mechanical properties of two polysulfide-containing polymers are described, one is polysulfide thio-polyurea, the other is UV-cured liquid polysulfide thio-urethane acrylate.
简单介绍了液体聚硫橡胶的发展与性能 ,合成了以液体聚硫橡胶为软段 ,2 ,5 二氨基 3,6 二甲硫基甲苯 (E30 0 )扩链的聚硫聚脲和紫外光固化的聚硫聚脲两种聚硫聚合物 ,并介绍了用侧链含氨基的聚二甲基硅氧烷对这两种聚硫聚脲聚合物进行表面改性 ,例举了聚硫聚脲改性聚丁二烯聚脲、增韧环氧树脂胶粘剂和增强聚硫密封胶等的应
3) spraying polyurea
喷涂聚脲
1.
Status and use of spraying polyurea elastomer technology;
喷涂聚脲弹性体技术的现状和应用
2.
of the spraying polyurea elastomer technology were reviewed.
喷涂聚脲弹性体技术,以其优异的综合性能和先进的施工工艺,引起了国内外材料界和工程界的极大关注。
4) polyurea coating
聚脲涂层
1.
The mechanism of cathodic disbonding properties of polyurea coating is discussed and the prescription of the elastic body is selected firstly.
探讨了聚脲涂料在金属上的阴极剥离机理及聚脲弹性体配方的选择,分析了金属表面、聚脲/金属界面附着力、聚脲涂料配方对聚脲涂层的耐阴极剥离性能的影响。
2.
The polyurea coating was tested with Taber tribo-machine and the high-pressure water jet erosion tester for studying the wear behavior of polyure coating under conditions of dry friction and high-speed water jet contained sand.
为研究聚脲涂层在干摩擦条件下和高速含砂水流冲蚀条件下的性能变化情况,用Taber磨损试验机和高速含沙水射冲蚀磨损试验机测试了聚脲涂层的磨损性能,用扫描电子显微镜和白光共焦三维轮廓仪观测涂层的磨损表面形貌,用表面红外光谱和电子显微镜能谱元素分析了涂层表面试验前后的组分变化,分析了涂层在2种摩擦条件下的磨损情况。
3.
It shows that there are cracks on the surface of epoxy coated concrete after 50 freezing-thawing cycles,and there is a large area coating off after 250 freezing-thawing cycles,the relative dynamic elastic modulus was decreased by 60%;while the surface of polyurea coating was still intact after 300 freezing-thawing cycles,and the modulus was only decreased by 8%.
采用快冻法,研究聚脲涂层和环氧涂层对混凝土抗冻性的影响。
5) Polyurethane-Urea
聚氨酯脲
1.
Structure and properties of polyurethane/organic montmorillonite nanocomposites Ⅱ.Effect of ultrasonic dispersion on structure and properties of polyurethane-urea/organic montmorilonite nanocomposites;
聚氨酯/有机蒙脱土纳米复合材料的结构与性能 Ⅱ.超声波分散对聚氨酯脲/有机蒙脱土纳米复合材料结构与性能的影响
2.
The solvent-based polyurethane-urea(PUU) resin was prepared by using PPG600 /PPG2000 blended polyether,isophoronediisocyanate(IPDI) and isophorone diamine(IPDA) as raw materials.
以PPG600和PPG2000混合聚醚、异佛尔酮二异氰酸酯(IPDI)和异佛尔酮二胺(IPDA)为原料合成溶剂型聚氨酯脲(PUU)树脂,通过改变PPG600和PPG2000配比调节树脂硬段含量。
3.
A novel polyurethane-urea emulsion was synthesized through different methods from poly(propylene oxide)diol,toluene diisocyanate,dimethylol propionic acid,2-methyl-1,3-propane diol,ethylenediamine and diethylene triamine.
以聚氧化丙烯二元醇为软段，甲苯二异氰酸酯、二羟甲基丙酸、２—甲基—１，３—丙二醇、乙二胺和二乙烯三胺为硬段，通过不同的方法合成了一种新型的自乳化型聚氨酯脲乳液（ＡＰｕ）。
6) thio-urea
硫代聚脲
1.
Synthesis and properties of polysulfide sealant containing thio-urea;
含硫代聚脲结构的聚硫密封胶的合成与性能
补充资料：聚脲
| 聚脲 polyureas 主链含桸HCO桸H椊峁沟ピ囊焕嗑酆衔铩＞垭宓男灾Ê与聚酰胺、聚酯、聚氨酯相近，但熔点较高，一般在 250℃以上，结晶度也较大，这是因为分子间形成较聚酰胺和聚氨酯更多的氢键。以上几种相似聚合物若碳原子数相同时，其熔点次序为：聚脲＞聚酰胺＞聚氨酯＞聚酯。除了少数强极性溶剂如二甲基亚砜、浓硫酸外，其他溶剂很难溶解它。聚脲在熔融温度附近易发生热分解，因此限制了它的加工性能及应用范围。 聚脲可由二胺与二异氰酸酯或尿素聚合而成。 聚亚壬基脲是代表性的聚脲高分子。由壬二胺与尿素缩合制备，其性质与聚酰胺（如耐纶6）相似 ，可以熔融纺丝，熔融温度230～235℃，密度较小（1.066克／厘米3），具有良好的耐热性、染色性和耐腐蚀性，纤维抗拉强度0.0441～0.0539牛顿／旦，伸长率23％，适宜制造渔网和针织品。 |
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参考词条