A kind of waterborn polyurethane is synthesized by the reaction of diisocyanate with polyethylene glycol at the presence of end capping reagent;The factors that affect the blocking reaction and prepolymerization reaction were investigated.
以二异氰酸酯、聚醚多元醇为原料,利用二异氰酸酯和聚乙二醇在封端剂的存在下合成了一种水性聚氨酯;探讨了影响预聚反应和封端反应的因素。
The influence of reaction temperature, used solvents and catalysts on the prepolymerization reaction was investigated.
研究了反应温度、溶剂、催化剂及用量对预聚反应的影响。
The results indicated that the optimum reaction temperature of prepolymerization reaction was 75℃,the maximum reaction temperature of prepolymer was between 60℃ and 80℃,the quantity of hydrophilic chain extender was equal to 5% of feedstocks.
以甲苯二异氰酸酯(HDI)、聚酯多元醇和二羟甲基丙酸(DMPA)为主要原料合成水性聚氨酯固色剂,研究了反应温度、聚酯多元醇、有机溶剂、亲水扩链剂等对预聚反应的影响。
Research of reaction conditions on prepolymerization of polyester anionic waterborne polyurethane emulsion;
阴离子水性聚酯聚氨酯乳液预聚反应条件的研究
The Development of Energy - saving Technology of the Reaction Equipment Jacket and Agitator
我国反应设备夹套和搅拌节能技术的进展
advanced reactivity measurement facility
先进反应性测量设备
Design of Catalyst Used for Manufacture of CaC_2 by Solid Catalytic Reaction
固态催化反应法制备电石催化剂设计
Discussion of Installment and Measuring Technipue of Major Installation in Reactor
反应堆内主要设备安装测量方法探讨
The Debugging Summary of Integration Membrane Bioreactor (MBR) Equipment
一体式膜生物反应器(MBR)设备调试总结
Development and Application of Equipment of Shot Sound Signal s Information Feedback;
铅球声音信号信息反馈设备的研制与应用
Application of Essential Facilities Doctrine in the Enforcement of Anti-monopoly Law
必需设备原理在反垄断法实施中的应用
Predictable-reactive scheduling based on overall equipment effectiveness and multi-agent
基于设备整体效能和多Agent的预测-反应式调度
Enlightenment of Sense-and-Respond Logistics to Transformation Building of Our Military Equipment Support
感知与反应后勤及装备保障转型建设启示
Design, Preparation of Novel Solid Acid Catalysts and Their Application in Alkylation Reactions;
新型固体酸催化剂的设计、制备及其在烷基化反应中的应用研究
Stress Analysis and Structure Optimization of the Skirt Supporting Zone of the Hydrogenation Reactor and Tower;
加氢反应器及塔设备裙座支撑区应力分析与结构优化
Porous Scaffold Fabrication for Tissue Engineering Heart Valve and Design of a Pulsatile Reactor in Animal;
多孔心脏瓣膜支架的制备及体外预适应脉动反应装置的设计
unprepared and unable to react quickly.
没有准备或反应慢的。
Synthesis of α-Sialon by High Temperature Nitridation Reaction
高温氮化反应制备α-Sialon
Based on the basic equation of the recirculation reactor, the calculating method of the optimum circulating ratio is given.
采用适宜的循环比可以有效地调整物料的反应器进口浓度、降低反应器体积和设备投资。
If your device isn't responding properly to your taps, you may need to recalibrate your screen.
如果您的设备没有对点击作出正确反应，则需要重新校准屏幕。
We shall emphatically study and apply the technique of unti-doping agency and develop the detection equipment for doping agency.
重点开展反兴奋剂技术研究与应用； 兴奋剂检测设备研制等。
Multi effect Evaporator and Fluidized Bed Reactor(FBR)are major parts of the system.
该系统的主体设备包括多效蒸发器和流化床反应器。
