| 1. | Study on am and pva co - polymerization reaction with h2o2 fe2 as initiating agent 体系引发丙烯酰胺接枝聚乙烯醇的研究 |
| 2. | There is alkenyl double bond in the molecular structure and can form linear homopolymer and all kinds of copolymers by various polymerization reaction 该分子结构中含有烯基双键,可以通过各种聚合反应,形成线性均聚物和各种共聚物。 |
| 3. | It is made from petroleum . it can be used for internal lubrication of superhigh pressure compressors for ethylene and sealing in polymerization reactions 本产品是石油润滑油馏分经深度精制,添加高聚物而制成的n260乙烯超高压压缩机油。 |
| 4. | The yield , molecular weight , polar comonomer content and melting temperature of the poly ( olefin - ester ) s can be controlled by the change of polymerization reaction condition 改变聚合条件,可控制烯烃共聚酯的分子量、极性单体插入率和熔融温度等性质。 |
| 5. | In this paper , studying on the polymerization reaction in silicic acid solution is determined and the gel time of polysilicic acid is obtained when acetic acid compound exist 摘要在前人研究工作的基础上,应用乙酸进行硅酸聚合胶凝的实验研究,实验结果表明,当硅酸溶液中有乙酸化合物时,硅酸聚合胶凝的时间将延长。 |
| 6. | Considered its terminating effect on interfacial polymerization reaction , the quantity of 4 - ( chloromethyl ) benzoyl chloride should be limited to some extent . for the ip process investigated , n - dodecane and water can be used as solvents for dabsa and tmc solutions , respectively 在界面聚合过程中,分别以正十二烷和水作为有机相和无机相单体的溶剂,以十二烷基硫酸钠( sds )作为表面活性剂。 |
| 7. | This paper reviews the application of ionic liquids in polymer materials processing areas such as polymer electrolyte , the dissolution of polymer in ionic liquids , polymerization reactions in ionic liquids and plasticizing of polymer in ionic liquids 综述了离子液体在聚合物材料加工中的应用研究进展,主要包括聚合物电解质的合成应用研究、聚合物在离子液体中的溶解、以离子液体为溶剂的聚合反应以及离子液体作为聚合物的增塑剂。 |
| 8. | Based on the polymerization reaction mechanism of pet , the model includes all main reactions and major side reactions with measured operational variables as its input and polymerization degree ( dp ) , average molecular weight and parameters of molecular weight distribution as its output 模型从聚合反应机理出发,考虑了所有的主反应和主要的副反应,以实测的工艺操作参数为输入,以各反应釜、特别是终端产品的聚合度、平均相对分子质量及相对分子质量分布参数为输出。 |
| 9. | Based on polymerization reaction of the nylon - 6 rubberized cord fabric production of distributed control system in yangzhou organic chemical plant computer integrated manufacturing system ( yh - cims / dcs ) , the multiple stepwise regression method was used to build the statistic mathematical models of the molecule weight and the monomer quantum of casting slice belt . then the optimization model of polymerization reaction was presented , which was solved by using simulation annealing algorithm to obtain the best techniques parameters . the improved hybrid genetic algorithm and back propagation algorithm are combined to train neural network , brought out the neural network prediction model of casting slice belt ' s average molecule weight to guide the technologist on - line 提出了流程工业生产过程操作优化策略和应用实施方法,包括生产过程离线优化策略、非线性问题求解策略、在线优化模型及学习策略;结合扬州有机化工厂计算机集成制造系统集散控制系统( yh - cims dcs )的实施,针对锦纶? 6浸胶南京理工大学博士学位论文摘要帘于布生产中己内酚胺聚合反应过程优化控制这一工程实际问题,采用统计建模方法,建立了聚合反应过程的优化模型;为求解所得的优化模型,提出了种改进的有约束条件下的模拟退火算法,该算法能避免陷于局部最优解,有效地提高了所求解的全局性和可靠性:提出了基于改进的ga算法和sp算法相结合的混合学习算法,建立了基于神经网络的聚合反应过程生产目标在线预测模型,该算法和模型满足了生产中的实时性和实用性要求。 |
| 10. | Abstract : through analysis of the components of coking on different parts of desullfur system of single tower and the waste water containing sulfur , we find the cause of coking in the stripping desulur system from single tower is the polymerization reaction of carbohydrate and the separattion of varied solid powders , organic compounds , and all corrosive productions of metal out of waste water in high temperature , therefore , the solving method is how to decrease the oil content , how to depolymerize form the carbohydrate and how to antisepticize by vapour of waste water 文摘:对单塔脱硫系统中不同部位的垢物及现场催化含硫污水进行了分析测定,结果表明:塔内污垢成分及含量随塔体部位的不同而不尽相同,单塔汽提脱硫系统中垢物的形成,主要是由于污水中所含各类粉尘、有机物、金属腐蚀物等在高温下因石油碳氢化合物的析出及其单体的聚合反应所致.如何降低污水中的含油成分、减少聚合反应的生成、防止污水蒸气对塔体材料的腐蚀,是阻垢、除垢和防垢应解决的关键问题 |