The thermodynamics on sulfuric acid in urea-water mixed solvent 尿素-水混合溶剂中硫酸热力学性质的研究
Through artificial rainfall simulation experiment, this paper mainly studied the effect of applying the different concentration polymers including Polypropylene-acid, Polythene-hydri and Urea-formaldehyde resin. 通过人工模拟降雨试验,研究了坡面施加不同浓度的聚丙烯酸、聚乙烯醇、脲醛树脂3种聚合物对防治土壤侵蚀的效果。
Study of Viscosity of Urea-Sulfuric Acid Solution 尿素硫酸溶液粘度的研究
Comparison of the Influences of Ammonium Chloride and Ammonium Sulphate on the Properties of Urea-Formaldehyde Adhesives 硫酸铵与氯化铵对脲醛树脂胶粘剂性能影响的比较
Study on the Curing Reaction of Urea-Furan Resin Catalyzed with Acids 酸促硬呋喃脲醛树脂的硬化反应研究
Study on polymerizing process of urea-formaldehyde 脲醛树脂胶聚合工艺的研究
The Application of Tea Waste in Urea-formaldehyde Resin Adhesive 茶叶废料在脲醛树脂中的应用研究
The formulation and production process of this coatings were given, and factors influencing the film properties, such as level of urea-formaldehyde resin and acid curing catalyst were discussed. 介绍了该涂料的配方和配制工艺。讨论了脲醛树脂用量和酸固化催化剂对涂膜性能的影响。
Study and Application of Emulsive Urea-formaldehyde Resin Sand Consolidating Agent 乳化脲醛树脂固砂剂的研究及应用
Development and use of powder urea-formaldehyde adhesive 粉末脲醛胶粘剂合成与应用进展
Study on the method of making insect specimen by soaking in urea-formaldehyde resin 脲醛树脂包埋法制作昆虫标本技术研究
Efficacy of urea-fluorosilicate and Triadimefon mixture on wheat powdery mildew control 氟硅脲与粉锈宁混用防治小麦白粉病的研究
Effect of controlled-urea on urea-N transformation and yield 施用控释尿素后土壤尿素氮的转化及其对产量的影响
Application of Urea-based Grease on Sintering System 脲基润滑脂在烧结系统的应用
Study on the Prepressing Problem of Plywood and Environmental Urea-Formaldehyde Resin Adhesive 胶合板预压问题及环保型脲醛树脂胶粘剂的研究
Direct Preparation Process of Microcapsules by in situ Polymerization of Urea-Formaldehyde 一步法制备脲醛树脂微胶囊过程的研究
Study on Modification of PVAc with Phenol-urea-formaldehyde Resin 苯酚-尿素-甲醛树脂对PVAc乳胶的改性研究
Chemical Structures and Acid-Catalyzed Curing Reactions or Urea-Furan Resin 呋喃脲醛树脂结构分析及其酸固化反应原理
The discussion on K-T technology for production of urea-based compound fertilizer 尿基复合肥K-T工艺技术分析
Through copolycondensation methed, a phenol-melamine-urea-formaldehyde resin was prepared. 通过共缩聚的方法,制备了具有良好的耐水性能和胶合性能的苯酚-三聚氰胺-尿素-甲醛树脂。
The properties of viscosity and surface activity of urea-formaldehyde oligomers were studied, as well as their relationship with the encapsulation efficiency of microcapsules. 研究了低分子量脲甲醛缩聚物水溶液的粘度特征和表面活性及其与胶囊包封率的关系。
Study on Urea-formaldehyde Resin Modified by Plant Ash and Oxygenated Amylum 用草木灰和氧化淀粉改性脲醛树脂胶粘剂的研究
Research on Urea-Phosphorus Compound Fertilizer 尿磷复合肥的研制
Researches on a New Technology for Urea-calcium-superphosphate Production 尿素过磷酸钙的新工艺研究
Production of Ammonium Bicarbonate in Urea Process Determination of Degree of Polymerization for Urea-ammonium Polyphosphate 尿素聚磷酸铵的聚合度测定方法研究
Through a series of laboratory and small pilot scale continuous experiments, the feasibility of urea-calcium superphosphate production with Yichang phosphorous ore has been proved. 通过一系列的实验室试验和小型中间连续试验,明确了宜昌磷矿制尿素过磷酸钙的可行性。
Productive Application of Urea-Base Compound& Mixing Fertilizer 尿基复混肥的生产应用
Urea-formaldehyde resins was used as the adhesive in present production, there is formaldehyde to evaporate in the plank. 目前的生产中多以脲醛树脂作为胶黏剂与棉秆碎料混合,进而模压板材。这类板材在使用过程中会挥发出有害的甲醛。