以齐聚副产物制备耐高温泡沫剂

以齐聚副产物为原料在实验室分别以AlCl3、AlCl3络合物和杂多酸为催化剂合成并经磺化制备了用于提高石油采收率的耐高温泡沫剂，试验结果说明烷基碳数为16的异构烷基苯磺酸盐常温发泡性能最佳，烷基碳数大于20的正构烷基苯磺酸盐高温发泡性能最佳，后者特别适合高温蒸汽驱油。加入适当的非离子助剂及无机盐能够提高磺酸盐的水溶性，改善发泡剂溶液的稳定性。     

LF泡沫精炼渣脱硫动力学的实验研究

对CaO -Al2 O3 -SiO2 系泡沫精炼渣进行了实验室脱硫动力学研究 ,得到的硫传质系数为 1.45 9× 10 -5m s。还就泡沫精炼渣中发泡剂对其脱硫能力的影响进行了研究。     

夏季面漆起泡的预防

面漆漆膜在夏季潮湿天气下成膜后3—5天，漆膜表面易形成米粒状的漆泡，针对漆泡的现象，寻找其形成的机理，根据起泡的机理采取预防面漆起泡的措施。     

Effects of surfactant and particle size on the microstructure and strength of Si3N4 foams with high porosity

The highly porous Si₃N₄ ceramic foams were prepared by direct foaming with mixed surfactants. The surface tension and viscosity of slurries were tailored by different carbon chain length of surfactants and different mean Si₃N₄ particle size to achieve the pore size controlling. The nearly linear relationship between the pore size and the ratio of surface tension to viscosity was observed, which indicates that the pore size could be precisely tailored by the slurry properties. Si₃N₄ ceramic foams with porosity of nearly 94%, mean pore size of 110–230 µm, and compressive strength of 1.24–3.51 MPa were obtained.     

高锰钢的泡沫陶瓷过滤净化

采用泡沫陶瓷过滤片对高锰钢进行过滤处理，对其进行金相分析和测试密度，冲击韧性和耐磨性能，并与未过滤的高锰钢进行对比，实验结果表明，在过滤的高锰钢中，金属夹杂物明显减小，密度提高0．53％，冲击韧性39．5％，耐磨性能提高1．04倍，批量生产结果表明，过滤的高锰钢球磨机衬板的使用寿命提高0．6－0．7倍。     

(CO2 + 2‐propanol) mixture as a foaming agent for polystyrene: A simple thermodynamic model for the high pressure VLE‐phase diagrams taking into account the foam vitrification

The equation of state model developed by Lacombe and Sanchez (J Phys Chem 1976, 80, 2352) is used in the form proposed later by Sanchez and Stone (Polymer Blends, Vol. 1: Formulation, 2000; Chapter 2) to correlate experimental vapor‐liquid equilibrium (VLE) data for the three binaries and the ternary systems. Experimental data from the binary systems carbon dioxide‐isopropyl alcohol (CO₂‐IPrOH), isopropyl alcohol‐polystyrene (IPrOH‐PS), and carbon dioxide‐polystyrene (CO₂‐PS) are used to calculate VLE properties for the ternary system CO₂‐IPrOH‐PS. Two‐dimensional VLE‐phase diagrams were calculated and used to describe from a thermodynamic point of view the pressure, volume, and temperature values that characterize a thermoplastic foam evolution process, from the extruder to the foaming die. For different initial mixture CO₂ + IPrOH concentrations, pressure reduction produces liquid foaming until the vitrification curve arrests the final foam volume expansion. The dependence of the vitreous transition with the system CO₂ + IPrOH concentration while foaming is represented by the Chow (Macromolecules 1980, 13, 362) equation. The calculation procedure is proposed as a design tool to reduce the amount of experimental data usually needed as a requirement previous to the design stage. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 2663–2671, 2007     

高分子和盐对3-十二烷氧基-2-羟丙基三甲基溴化铵泡沫性能的影响

测定了3-十二烷氧基-2-羟丙基三甲基溴化铵(C12TAB)在PVP、PEG和溴化钠存在下的泡沫性能。结果表明：含量相同时，C12TAB／NaBr混合体系的起泡性能高于C12TAB／高分子体系，而稳泡性能低于后者。含量相同的C12TAB／高分子体系，PVP对C12TAB的影响好于PEG。     

泡沫微晶玻璃的研究进展

概述了泡沫微晶玻璃的性能及应用,综述了泡沫微晶玻璃的研究进展,并对泡沫微晶玻璃的发展方向进行了展望。     

一步法硅烷接枝交联改性聚丙烯的研究

采用反应挤出法一步实现聚丙烯（PP）的硅烷接枝和交联改性，制备出了具有部分交联结构的高熔体强度PP。通过改性前后红外光谱、熔体流动性能、凝胶含量、结晶行为、力学性能和发泡性能的变化考察了改性对材料性能的影响。结果表明，一步法改性后PP大分子中引入了硅烷接枝交联结构，使熔体强度、熔体黏度提高，熔体流动速率显著降低，并且体系中出现了高达48％的凝胶；交联结构的引入使PP的结晶速率减缓；改性后材料的力学性能有所提高，而发泡性能大大改善，可以获得高质量的泡沫塑料。