That reactor resolved the problem of transfering heat、taking out highly viscous material and solid outcome in bulk polymerization.
该反应器较好的解决了本体聚合反应中的传热，高粘性物料的出料和固体产物的出料等问题。
To meet the requirement of the industrialization of sPS, the agitation power and the heat transfer charge of a 100L pilot reactor and the corresponding polymerization technology were investigated according to the characteristics of this polymerization. Powdery vertical reactor with two-screw ribbon agitator and seeded semi-continuous polymerization technology were proposed and designed. The new technology could avoid the complex phase change during the bulk polymerization and the giant power load needed in the batchwise process. Furthermore, the gel-like sPS product will be prevented during the polymerization.
出于工业化放大的要求，本文针对sPS本体聚合的特点，对100L中试聚合工艺和聚合反应器的搅拌功耗、传热负荷等进行了化工计算，提出并设计了立式粉体双螺带搅拌聚合反应器和种子半连续聚合工艺，以避免聚合过程中复杂的相态更迭和间歇工艺中所需的巨大功耗，并且有效地防止凝胶的出现。
The importance of improving the heat transfer performance of enamel cauldron in chloroethylene polymerization reaction is dealt.
论述了在氯乙烯聚合反应中，提高搪瓷釜传热性能的重要性，阐述了传热性能的影响因素，提出了解决办
In the microwave polymerization group, the dentures were heated for 9 minutes with 40% firepower, natural cooled, the pressure of flasking at 4.5 kg/mm^2. In the water-bath heat polymerization group, the temperature increased from room to 70 ℃, sustained for 1.5 hours, then rise to 100 ℃ for 0.5 hour.
微波聚合法在40%的火力下加热9min，自然冷却至室温，开盒，严格控制装盒压力大小为4.5kg/平方公厘；水浴聚合法由室温升温到70℃，恒温1.5h，再升温到100℃，恒温0.5h，自然冷却至室温，开盒。
In the microwave polymerization group, the dentures were heated for 9 minutes with 40% firepower, natural cooled, the pressure of flasking at 4.5 kg/mm2. In the water-bath heat polymerization group, the temperature increased from room to 70 ℃, sustained for 1.5 hours, then rise to 100 ℃ for 0.5 hour.
微波聚合法在40%的火力下加热9 min，自然冷却至室温，开盒，严格控制装盒压力大小为 4.5 kg/mm2；水浴聚合法由室温升温到70 ℃，恒温1.5 h，再升温到100 ℃，恒温0.5 h，自然冷却至室温，开盒。
Factory building area of more than 20, 000 square meters, the introduction of international advanced production lines, learn the essence of the Australian Science and Technology, polymerization global intelligence experts, coherence state of the art technology industry in Europe and America has the world's most advanced production technology and production techniques, mainly the production of air-source heat pump hot water units, water source heat pump cold water units, water-cooled screw chillers, screw-type ground-source heat pump units, air-cooled Screw Type Cold units, water-cooledú, residential central air-conditioning, three-in-one residential ground-source heat pump heat recovery units, direct evaporative cassette units, air-cooled modular cold water units, air-cooled heat pump heat recovery units, air-cooled air-conditioning units pipe, intelligent multi - One drag many units, water-cooled pipe unit, the super inverter heat pump water heater units, modular air handling units and a variety of end products.
厂房建筑面积2万多平方米，引进国际先进的生产流水线，汲取澳洲科技精华，聚合全球专家智慧，融贯欧美的行业尖端科技，拥有世界最先进的生产工艺和生产技术，主要生产空气源热泵热水机组、水源热泵冷水机组、水冷螺杆式冷水机组、螺杆式地源热泵机组、风冷螺杆式冷机组、水冷柜机、户式中央空调、三合一户式热回收地源热泵机组、卡式直接蒸发机组、风冷模块式冷水机组、风冷热泵热回收机组、风冷管道式空调机组、智能多联一拖多机组、水冷管道机组、超级变频热泵热水器机组、组合式空气处理机组及各种末端产品等。
A heat-resistant filtrate reducer was synthesized using 2-acrylamido-2-methylpropane sulfonic acid, acrylamide and acrylic acid as raw materials and ammonium persulfate/sodium bisulfite as initiators by aqueous solution polymerization.
以2-丙烯酰胺基-2-甲基丙磺酸、丙烯酰胺和丙烯酸为单体，采用过硫酸铵和亚硫酸氢钠氧化还原体系，通过水溶液聚合法合成了耐温型降滤失剂。
Of malaxation + electronical heat-polymerization is larger than group of traditional mixing +hot water polymerization.
5，常规混合与捏炼混合、水浴加热与电烤箱加热处理对义齿基托树脂的色稳定性和着色性的影响差别不大。
Objective: To investigate differences between the mechanical properties of denture base processed by traditional mixing and malaxation method, and by traditional hot water polymerization and electrical heat-polymerization. And to study which kind of mixing and curing method can enhance the properties of denture base resin.
分别探讨两种不同混合方式和两种不同热加工固化方式对义齿基托树脂性能的影响，从而研究何种混合方式及加热固化方式更有利于提高基托树脂的性能。
The bonding strength of base resin-artificial tooth of malaxation method+ electrical heat-polymerization group is best.
2，捏炼混合组+电烤箱加热固化组具有较好的基托树脂-人工牙粘接性能。
Shrinkage ratio of malaxation + electronical heat-polymerization group is the lowest.
3，捏炼混合组+电烤箱加热固化组聚合收缩率较小。
Group 4: malaxation + electrical heat-polymerization.
根据不同的混合方式和加热固化方式分为四组：第一组：常规混合+水浴加热；第二组：捏炼混合+水浴加热；第三组：常规混合+电烤箱加热；第四组：捏炼混合+电烤箱加热。
Residual monomer of the four groups is far lowest than ISO standardization. Groups of traditional mixing are lower than the malaxation ones. Group of traditional mixing+ hot water polymerization is lower than group of malaxation + electrical heat-polymerization.
4，残余单体含量四组均远远低于标准中所要求的值2.2%，常规混合组残单含量小于捏炼混合组，两者有显著性差异（ P＜0.05），常规混合组+水浴固化组的残单含量低于捏炼混合组+电加热固化组（1：4 P＜0.05）。
The heat stability of PVC resin was improved by means of controlling the pH value of polymerization system with buffering agent, adding heat stabilizer to polymerization composition and controlling the polymerization conversion.
聚氯乙烯树脂是用途最广泛的塑料品种之一，世界上PVC树脂的产量在合成树脂中仍占第二位。
The results showed that the particle size of cationic PDMDAAC-AM synthesized in the ethanol-H2O system of dispersion was within the range of nanometer, and the dispersion polymerization in the emulsion state was helpful to dissipation of reaction heat.
实验结果表明，乙醇-H2O分散体系合成的阳离子共聚物PDMDAAC-AM的粒度在纳米范围内，而且由于分散聚合体系本身是个乳状液体系，有利于反应的热交换，所以采用分散聚合法合理的解决了聚合反应中的散热问题，体现了分散聚合法的特点。
Has been successfully developed titanium tube heat exchanger, condenser, evaporator, reactor titanium, titanium/steel composite reactor, polymerization autoclave, titanium tank, plate heat exchanger, titanium snake tube heat exchangers, titanium tower browser, titanium containers, blender titanium, titanium filters, titanium cathode roller, titanium species of plate, titanium electrode, titanium basket, titanium rack, tank, such as titanium products, widely used in salt, chemicals, petroleum, system medicines, dyes, electroplating, environmental protection and other industries.
现已成功开发出钛列管换热器、冷凝器、蒸发器、钛反应釜、钛/钢复合反应釜、聚合釜、钛贮罐、钛板式换热器、钛蛇管换热器、钛塔器、钛容器、钛搅拌器、钛过滤器、钛阴极辊筒、钛种板、钛电极、钛网篮、钛挂具、钛贮槽等产品，广泛用于制盐、化工、石油、制药、染料、电镀、环保等行业。
The phenomenon of the chemical calorific effect during the reactive extrusion process for polymerization was analyzed, and the numerical computation expressions of released heat of reaction and reactive calorific intensity were deduced, and then the relationship between released heat of reaction and reactive calorific intensity, monomer concentration, initiator concentration and temperature was obtained.
本文分析了聚合反应挤出过程的化学热效应现象，推导了反应热的释放量与反应热强度的数值计算式，获得了反应热的释放量与反应热强度和单体浓度、引发剂浓度以及体系温度的函数关系。
In this paper, such disciplines as polymer chemistry, polymer physics, statistical theory of polymer reaction, computational fluid dynamics, mechanical science and software engineering were used together to analyze the reactive extrusion process for the anionic polymerization and copolymerization. The conservation equation of momentum, continuity equation, and the numerical calculation equations of monomer conversion, the average molecular weight and viscosity were numerically solved by means of the finite volume method and the uncoupled semi-implicit iterative algorithm. And then, the evolutions of such variables as flow velocity, shear rate, pressure, released heat of reaction, reactive calorific intensity, polymerization rate, monomer concentration, monomer conversion, average molecular weight, fluid viscosity were obtained quantitatively under the given initial and boundary conditions.
本文综合应用高分子化学与物理、高分子反应统计理论、计算流体力学、机械科学和软件工程等学科知识，研究阴离子均聚体系、共聚体系的反应挤出过程，采用有限体积方法和解耦合的半隐式迭代算法，数值求解动量守恒方程、连续性方程、单体转化率的数值计算式、流体平均分子量的数值计算式、流体粘度的数值计算式，在给定的初始条件和边界条件下定量获得聚合体系在挤出过程中的流动速度、剪切速率、压力、反应热强度、反应热的释放量、聚合速率、单体浓度、单体转化率、平均分子量、材料粘度等物理量的动态演变情况。
The study on dynamics of polymerization is limited in the system of polystyrene and the initiator is limited by heat decomposition. Nothing had been done on dynamics of other polymerization systems and the bifunctional initiators oxidation-reduction solicitation System.
但是，这一领域的工作还处于初始阶段，如聚合动力学的研究只限于聚苯乙烯体系，并且只限于热分解型引发剂，其他聚合体系及氧化还原型双官能度引发体系的动力学研究目前还是空白。
The properties, installation and application requirements of the gas phase heat carrier used in the three autoclaves continuous polymerization production technology was introduced.
介绍了三釜连续聚合生产工艺中气相热载体的性质、安装和使用要求。