加成型硅橡胶灌封料流变性能的研究

研究了加成型硅橡胶灌胶封料的注性能。测定了硅橡胶灌封料的粘度，讨论了配制工艺条件及组份对硅橡胶灌封料流变性能的影响，分析了白炭黑在硅橡胶灌封料中的分散状态，实验结果表明，通过改进配制工艺条件，优化组分，可以制备出满足特定需要并具有高流动性的硅橡胶灌封料。     

预处理短纤维对VMQ/EPDM共混导电橡胶某些性能的影响

研究了预处理短纤维用量对乙炔炭黑填充甲基乙烯基硅橡胶（ＶＭＱ）／ＥＰＤＭ共混硫化胶拉伸、撕裂、耐屈挠疲劳和导电性能的影响。实验结果表明，加入适量短纤维对ＶＭＱ／ＥＰＤＭ体系有一定的补强作用；纤维用量较大时，导电性能下降。加入４．０份左右的预处理短纤维，可使ＶＭＱ／ＥＰＤＭ共混导电橡胶获得良好的物理机械性能和导电性能     

防静电橡胶条配方的研制

通过采用不同品种、不同用量的炭黑及不同品种的软化剂对导电橡胶制品导电性能的影响试验，确立了防静电橡胶条的较佳生产配方。     

转子构型对炭黑分散性及胶料力学性能的影响

主要研究了不同转子构型对炭黑分散性及胶料力学性能的影响。实验表明，在相同混炼条件下，6棱同步转子混炼的胶料获得最好的炭黑分散性，4棱转子的次之，在3组2棱同步转子中，2棱功能转子的混炼效果最好。说明通过改变转子构型，可有效地改善混炼胶中炭黑的分散性，提高胶料的力学性能。     

氢化可的松母液错流萃取行为研究

将氢化可的松母液解析为氢化可的松、表氢化可的松和６α－羟基ＲＳ三种组分，模拟了母液的表观分配系数。拟合结果与实验值符合较好，平均相对误差＜５．５％。     

Functionalization of carbon support and its influence on the electrocatalytic behaviour of Pt/C in H2 and CO electrooxidation

Chemical modification of Carbon Vulcan XC-72R for fuel cell applications has been undertaken. Treated carbons were used as carriers for the deposition of Pt nanoparticles and used as electrocatalysts. The influence of the carbon treatment, as well as that of the Pt nanoparticles generation and their deposition route has been studied. The behaviour of the electrocatalysts in the CO and hydrogen oxidation reaction (HOR) has been studied. It was observed that carbon pre-treatment lead to difference behaviour in the CO oxidation reaction compared with the performance over non treated supports. In this way, CO oxidation was controlled by the nature of the support rather than by the nature of the Pt particles alone.     

纯正黑色釉的研制

研究了用金属氧化物和硅酸盐材料直接制取纯正黑色釉的可行性，探讨了氧化铁、氧化铝、氧化钢、氧化信和氧化锰对黑釉性质的影响。     

联合制碱母液精制研究(下)

Brief review of the evolutive course of preparation and refining of mother liquor in Hou's soda-manufacturing Process and the historical root of inferior quality of the product from Hou's Process to that of Ammonium Soda Process. By determination in production, the technical causes of carrying of "escaping crystal" in flooding liquid from the salting out crystallizer and necessity of replacing the existing mother liquor Ⅱ vat by mother liquor Ⅱ settling tank. Theoretical and engineering basis of refining of mother liquor in Hou's Process is emphasized. Main results from field test of purification and filtration at low temperature of mother liquor Ⅱ prepared from three kinds of salt as raw material are introduced. Principle opinions of application on production are put forward.     

Effect of filler network on dynamic viscoelastic properties of uncured polymethylvinylsiloxanes filled with silica and carbon black

Dynamic properties of polymethylvinylsiloxane (PMVS) filled with filler‐blends composed of carbon black (CB) and silica (SiO₂) were investigated using an advanced rheometric expansion system. A variety of weight fraction of CB to SiO₂ were 0/100, 10/90, 30/70, 50/50, 70/30, 90/10, and 100/0, and a bifunctional organsilane, bis(3‐triethoxysilylpropyl)tetrasurfane, was used to facilitate the filler dispersion. The results reveal that the incorporation of CB/SiO₂ filler‐blends into PMVS result in a reduced Payne effect. This effect reaches a minimum when the ratio of CB/SiO₂ approaches 1, and then it began to rebound with the ratio increase. Meanwhile, a characteristic Newtonian viscosity plateau appearing in low frequencies also significantly decreases, depending on the amount of CB or SiO₂ added. On the basis of a simplified Fowke model, we ascribe this phenomenon to the deteriorated filler network, which is predominantly induced by the totally different surface activity between CB and SiO₂. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99: 3477–3482, 2006