本文研究了聚氨酯预聚体的合成工艺。
In this study, the synthetic technology of different polyurethane prepolymers was investigated.
使用该聚氨酯预聚体对环氧树脂进行了改性。
对水性聚氨酯预聚体中异氰酸酯基团的容量测定进行了研究。
Content of isocyanate group in waterborne polyurethane prepolymer is tested with acetone as solvent, n-dibutylamine - toluene solution as reaction liquid and ethyl acetate as thinner.
讨论了三种封闭剂不同加量、温度和时间对聚氨酯预聚体封闭反应的影响。
The effects of the amounts of three blocking agents, temperature and time on blocking reaction for prepolymer are discussed.
详细叙述了用气相色谱法测定聚氨酯预聚体中微量游离tdi的操作方法和技巧。
The article gave a minute description of operational method and skill in measuring trace free TDI in polyurethane prepolymer by gas chromatography.
本文利用商业级的聚氨酯预聚体和有机粘土成功制备了聚氨酯基粘土纳米复合材料。
A polyurethane matrix nanocomposite has been successfully fabricated using a commercial grade polyurethane prepolymer and organoclay powders, with the aid of a solvent and supersonic treatment.
采用本发明的聚氨酯预聚体作为交联剂，通过常规自由基 溶液聚合就可制得水凝胶。
The polyurethane cross-linking agent has a structural formula (I) and can be used for preparing aquagel.
本文利用丙烯酸酯与带有活性官能团的聚氨酯预聚体反应，生成了水分散的丙烯酸酯改性聚氨酯分散体。
The acrylate-modified waterborne polyurethane dispersion was prepared through reaction of acrylate and polyurethane prepolymer with reactive groups.
用甲基丙烯酸羟乙酯封端的水性聚氨酯预聚体与丙烯酸酯发生聚合，制备丙烯酸酯改性水性聚氨酯分散体。
The title aqueous acrylate modified polyurethane dispersion has been prepared with acrylate and aqueous polyurethane prepolymer that is blocked with hydroxyethyl methacrylate.
以异氰酸酯封端的聚氨酯预聚体(PU)与环氧树脂(EP)发生反应，制备了聚氨酯接枝改性环氧灌封材料。
Epoxy encapsulating materials grafted and modified with polyurethane (PU) was prepared by reaction of -nco-terminated PU prepolymer with epoxy resin (ep).
结果表明，采用蓖麻油与甲苯二异氰酸酯（TDI）反应，加入封端剂乙二醇烷基醚类，得到封端型聚氨酯预聚体。
The results showed that the terminated prepolymer was prepared by introducing ethylene glycol alkyl ether as a capping agent into the reaction system of castor oil and tolylene diisocyanate (TDI).
研究了聚氨酯预聚体合成过程中，-NCO其含量对预聚体性质的影响，考察了聚氨酯预聚体贮存时间与性能的关系。
During the course of making prepolymer of CPU prepolymers with different content of m NCO % had different qualities and different duration.
以聚酯（PEA、PEPA）或聚醚（PTMG）和TDI为原料合成聚氨酯预聚体，用三异丙醇胺 （TIPA）和1，4-丁二醇（BDO）的混合物作扩链剂制备聚氨酯弹性体。
A series of polyurethane (PU) elastomer were synthesized from polyester(PEA, PEPA) or polyether(PTMG), toluene dissocyanate (TDI), mixture of triisopropanolamine(TIPA) and 1,4-butanediol(BDO).
采用半预聚物法合成了以L - MDI、DMTDA、P PO为原料的双组分rim聚氨酯弹性体。
The RIM polyurethane elastomer was prepared by means of quasi-prepolymer process, with L-MDI, DMTDA, PPO as materials.
以封闭型预聚体和含羟基预聚体为主要原料制备得单组分聚氨酯(PU)胶粘剂。
One-component PU adhesives were prepared from the blocked prepolymer and hydroxyl group-containing prepolymer.
结果表明，选择适当的软段组分和制备条件，通过半预聚体方式制备三软段聚氨酯弹性体是可行的。
The results showed that PU elastomers with broad glass transition temperature and damping temperature could be prepared with three soft segments by semi-prepolymer method at appropriate conditions.
它可在催干剂作用下形成性能优良的涂膜，也可与聚氨脂预聚体组成性能优良的双组分聚氨酯漆。
The coating of resin can be hard by catalysis at room temperature and its film has excellent physico-mechanical properties and anticorrosive properties.
研究结果表明，适量的催化剂能明显加快聚氨酯（PU）预聚体的反应速率；
The results showed that adequate catalyst can obviously raise the reaction speed of polyurethane(PU)prepolymer.
采用MDI、PAPI、HDI、IPDI等不同的异氰酸酯和聚酯多元醇、聚醚多元醇等反应，制备高固体分的聚氨酯弹性体预聚物。
A high solid elastic polyurethane prepolymer has been prepared based on MDI, PAPI, HDI, IPDI and polyester polyols and polyether polyols.
对合成预聚体的结构进行了表征，并对预聚体及其丙烯酸聚氨酯涂料的性能进行了研究。
The structure of the prepolymer is characterized. The properties of prepolymer and its acrylic polyurethane coatings are discussed.
由多异氰酸酯PAPI与蓖麻油反应制得预聚体清漆，它是一种湿固化型聚氨酯防腐涂料。
The polyurethane prepolymer clear coatings based on PAPI and castor oil was prepared. It is a sort of moisture curable one-component polyurethane coatings, which has protection function.
由多异氰酸酯PAPI与蓖麻油反应制得预聚体清漆，它是一种湿固化型聚氨酯防腐涂料。
The polyurethane prepolymer clear coatings based on PAPI and castor oil was prepared. It is a sort of moisture curable one-component polyurethane coatings, which has protection function.
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