Gives the viscosity control method of polyurethane prepolymer preparation.
给出了聚氨酯预聚物合成的粘度控制方法。
A theoretical model for the reaction kinetic of the urethane and branching reaction of polyurethane prepolymer is proposed.
提出一种新的测试聚氨酯预聚物合成反应过程中氨酯化反应和支化反应的动力学参数的理论模型 。
Modification was performed by grafting polyurethane prepolymer via condensation polymerization on the surfaces of attapulgite.
采用缩合聚合法对凹凸棒石进行表面接枝聚氨酯预聚体改性。
A high solid elastic polyurethane prepolymer has been prepared based on MDI, PAPI, HDI, IPDI and polyester polyols and polyether polyols.
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。
The article gave a minute description of operational method and skill in measuring trace free TDI in polyurethane prepolymer by gas chromatography.
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 acrylate-modified waterborne polyurethane dispersion was prepared through reaction of acrylate and polyurethane prepolymer with reactive groups.
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 title aqueous acrylate modified polyurethane dispersion has been prepared with acrylate and aqueous polyurethane prepolymer that is blocked with hydroxyethyl methacrylate.
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。
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.
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。
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。
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.
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。
The structure of NCO-teminated polyurethane prepolymer and SPU was characterized by FTIR and GPC. Results showed that silane coupler was successfully grafted to the end of polyurethane prepolymer.
利用红外光谱（FTIR）和凝胶色谱（GPC）表征了PU和SPU预聚体的结构和分子量，证明了硅烷偶联剂成功地接枝于PU预聚体的端基上。
A weather resistant IPN-improved acrylic polyurethane coating has been developed by controlling the composition of acrylic prepolymer and coating formulation.
通过调整丙烯酸组分的单体组成和涂料配方，研制出一种耐候性的IPN改性丙烯酸聚氨酯涂料。
The formulation and preparation process of polyurethane for underlayer of slush pump were introduced. The effects of -NCO content of prepolymer and MOCA rate were studied.
介绍了泥浆泵护套用聚氨酯胶的配方和制作工艺，并对预聚物中—NCO含量和MOCA用量进行了考察。
The preparation methods for aqueous polyurethane are introduced briefly. The properties of products prepared by acetone process and prepolymer mixing process are compared.
简述水性聚氨酯制备方法，并对丙酮法和预聚物分散法所制产品性能进行比较。
The RIM polyurethane elastomer was prepared by means of quasi-prepolymer process, with L-MDI, DMTDA, PPO as materials.
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。
Epoxy encapsulating materials grafted and modified with polyurethane (PU) was prepared by reaction of -nco-terminated PU prepolymer with epoxy resin (ep).
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。
The results showed that adequate catalyst can obviously raise the reaction speed of polyurethane(PU)prepolymer.
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 structure of the prepolymer is characterized. The properties of prepolymer and its acrylic polyurethane coatings are discussed.
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。
To form a microcellular polyurethane material, the urethane prepolymer is frothed with inert gas, in the presence of a surfactant, then cured.
为了形成微孔聚氨酯材料，在表面活性剂存在下用惰性气体使该氨基甲酸酯预聚物发泡，随后固化。
To form a microcellular polyurethane material, the urethane prepolymer is frothed with inert gas, in the presence of a surfactant, then cured.
为了形成微孔聚氨酯材料，在表面活性剂存在下用惰性气体使该氨基甲酸酯预聚物发泡，随后固化。
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