超细粒子的表面改性研究

综述了多种近年来较新的超细粉体表面改性的方法 ,并介绍了其特点 ,如 :复合法、溶胶 -凝胶法、沉淀法、表面反应法等     

脂肪酸甲酯乙氧基化物在洗衣粉中的应用

对脂肪酸甲酯乙氧基化物(MEE)在洗衣粉体系中等量代替AEO9进行了应用研究，在洗衣粉前、后配料工艺中加入不同量的MEE或AEO9情况下，综合考察了熔点、黏度、洗衣粉去污性能。CMEE-8、AEO9熔点分别为25℃、21℃，黏度完全相同，后配料工艺制备的洗衣粉去污力基本相当；前配料工艺中CMEE-8与AEO9在质量分数为1．5％、3％、6％、10％时所配洗衣粉料浆黏度的比值分别为1／3．2、1／4．8、1／5．1、1／1．8，洗衣粉去污力基本相当。研究结果表明：CMEE-8无论在前配料、后配料中均可以代替AEO9。     

超细铜粉制备过程中的粒度分布行为研究

考察了不同制备条件对超细铜粉形成过程的影响。结果表明，随着平均停留时间减小，粒度变小，分布变窄；高的进料液浓度或较高温度下形成的粒子发生了“粒级凝聚”和“核级凝聚”。表面活性剂有显著的防凝作用。在适度晶核泛溢情况下，粒径分布符合粒子数平稳理论所预言的分布规律。     

水性聚氨酯——丙烯酸酯涂料的研究进展

介绍了聚氨酯-聚丙烯酸酯(PUA)复合乳液制备方法的研究进展,同时对PUA涂料的发展进行了展望.     

Studies of microhardness and mar resistance using a scanning probe microscope

Scanning probe microscopy (SPM) is in a period of rapid development. It shows great promise for characterizing coating surfaces. This paper describes modification of an SPM so that it can be used to mar the surfaces of coatings under controlled conditions and to characterize the mars. Mar resistance of coatings is analyzed in terms of a ‘three response, two mechanism model.' The three responses (fracture, elastic, and plastic) can be measured quantitatively using the SPM. Of the three responses, only two (fracture and plastic deformation) are marring mechanisms – elastic deformations recover instantaneously. In some cases mars resulting from plastic deformation may recover slowly with time or with immersion in water; this phenomenon is attributed to viscoelastic creep. Microhardness is also measured with the modified SPM. Some thermoset coatings appear to be substantially harder near their surfaces than in the mass of material, and such materials may respond quite differently to stress applied at different levels near the surface. This finding has important implications for all coating properties that are strongly influenced by the surface. A quantity called ‘micro mar resistance' is defined. It may be useful for comparing different coatings under specified conditions of marring. However, there can be no single quantity that expresses ‘mar resistance' of a coating under all conditions.     

溶胶－凝胶法合成PLZT微细粉末

以金属异丙醇盐为原料，用溶胶－凝胶法令成了ＰＬＺＴ（Ｌａ／Ｚｒ／Ｔｉ为９／６５／３５）微细粉末。研究了ｐＨ值、溶剂、干燥过程等工艺条件对胶凝时间和凝胶性能的影响。通过Ｘ射线衍射分析，热重及差热分析，研究了由凝胶至ＰＬＺＴ粉末的转变过程以及凝胶结构和焙烧温度对ＰＬＺＴ粉末性能的影响。实验证明，约在５２０℃凝胶转变为ＰＬＺＴ固溶体；在５５０℃下焙烧制备的ＰＬＺＴ粉末粒径小于０．２μｍ。     

Combinatorial materials research applied to the development of new surface coatings: II. Process capability analysis of the coating formulation workflow

A combinatorial process has been developed for the high throughput production and evaluation of surface coatings. The workflow designed for the production of arrays of liquid coatings involves the robotic transfer of aliquots of solutions of raw materials to an array of glass vials and mixing of the coatings using an unconventional magnetic stirring process. An investigation of the capability of the workflow to accurately and repeatedly prepare coating arrays was conducted as a function of solution viscosity and aliquot size. In addition, mixing capability was evaluated as a function of solution viscosity, total solution volume, and mechanism of stirring. Overall, the results of the study indicated that adequate accuracy and repeatability of the coating preparation process can be achieved as long as raw material solutions are designed such that viscosity is below about 250 cP and aliquot sizes are above about 75 μl. With regard to mixing capability, total solution volume was found to have a profound affect as did the stirring mechanism.     

粉末涂料涂装工艺(Ⅰ)

介绍了粉末涂料的几种涂装方法及其原理、特点、应用范围和进展情况，重点介绍了静电粉末涂装方法。     

纳米TiO2复合铁钛防锈颜料的研制及产业化进展

介绍了纳米TiO2复合铁钛防锈颜料的制备原理、工艺、技术指标;描述了铁钛防锈涂料的配方、性能检验和产业化进展情况.     

家电卷材涂料用HDI改性聚酯树脂的研制

以己二异氰酸酯（HDI）改性聚酯树脂与氨基树脂配制成家电用卷材涂料。阐述了氨酯键对涂膜性能的贡献。探讨了HDI用量对涂膜性能的影响。