IIR/EPDM共混物的物理机械性能

研究了IIR／EPDM并用体系中共混比、硫磺硫化体系以对共混性能的影响。结果表明，IIR与EPDM相容性较好，而且可以达到共硫化；IIR。EPDM质量比为75／25时，共混物的物理机械性能和老化性能较好；用硫黄、低硫高促进剂和无硫硫化体系都得到性能良好的共混物，其中以前者硫化的共混物性能最为突出。     

含三嗪环的酸酐固化剂合成及其环氧固化物性能研究

将桐油(TO)经过三(2-羟乙基)异氰尿酸酯(THEIC)改性处理后再引入顺丁烯二酸酐(MA),得到新型含有三嗪环的酸酐固化剂(TTA)。通过红外光谱分析确定了其结构,用TGA分析结果表明,其与E44环氧树脂的固化物耐热指数达到174.5℃,在空气气氛中的热老化性能优于用THEIC和双马来酰亚胺改性的桐油酸酐固化剂的环氧固化物。     

硫化监控系统软件

硫化监控软件采用VB.NET编程语言，具有更强的功能。着重论述了软件的几个主要模块的功能及如何编程来实现这些功能，包括通讯模块、数据库模块、曲线图处理模块、报警监测与控制模块等。该软件已在用户中使用，具有一些新功能。     

高性能环氧树脂涂料的研制

以甲基丙烯酸、丙烯酸丁酯及苯乙烯的聚合为接枝体，在过氧化苯甲酰作用下对E-51环氧树脂进行接枝改性，同时对三乙烯四胺进行曼尼希改性，制得多种改性固化剂，并用其与改性的环氧树脂配制成涂料，实验结果表明，当苯酚、甲醛和三乙烯四胺的物质的量比为3：3：1时固化剂的固化性能最好。     

光敏树脂的研制

本文介绍了环氧丙烯酸醌和聚氨酯丙烯酸酯这两种光敏树脂的合成方法，固化体系的选择，并对几种光固化引发体系作了比较。本文还就电子转移敏化剂在光固化反应中的应用作了初步探索。     

复合材料夹层结构产品固化变形分析

本文讨论产生复合材料产品固化变形的主要原因是树脂收缩引起的各方向上不同的线膨胀系数具体分析了复合材料夹层结构的的固化变形，经技术上的改进解决了固化变形，以满足产品的设计要求。     

不同养护方式对水泥-锂渣浆体水化程度影响

为了分析水泥-锂渣浆体的水化程度, 采用高温煅烧法测试各龄期的化学结合水, 结果发现:水泥-锂渣浆体的化学结合水量随龄期的延长而增加, 水化3 d和7 d时能达到水化90 d时的60%和80%。高温养护、碱激发、高温和碱激发均能提高锂渣复合水泥基材料早期的化学结合水量, 最高可达3~4倍, 提高的幅度依次为碱激发和高温养护＞碱激发＞高温养护＞标准养护。高温和复合环境养护也能提高水泥的水化程度, 1~28 d内, 锂渣掺量在40%以内时, 水泥水化程度相对指数(ψ值)均大于1;掺量为60%时, ψ值均小于1。综上, 高温养护、碱激发、高温和碱激发均能提高锂渣和水泥的水化程度, 高温和碱激发复合作用时较为显著。     

A Solder Alloy Filled Z-Axis Conductive Epoxy Adhesive

Epoxy adhesives filled with four different volume fractions of eutectic tin-bismuth solder alloy were prepared and the effect of filler content on the electrical and mechanical properties of these anisotropic electrically conductive adhesives was investigated. The results show that the adhesive containing the lowest amount of the filler alloy had the best combination of conductivity, insulation resistance and shear strength. The DSC-measurements suggested that the filler melts before the cure of the resin begins which allows the filler to wet and bond well to the conductors. This was verified by SEM/EPMA examinations. A temperature cycling test and high humidity, high temperature treatment were conducted on the best composite adhesive. The temperature variation had no effect on conductivity of the joints while humid and hot environment decreased the conductivity.     

氮掺杂纳米TiO_2改性涂料及其抗菌性能

将自制的氮掺杂锐钛矿型纳米二氧化钛光催化剂作为功能性组分,加入耐光催化氧化的硅丙乳胶涂料中,制备出一种新型光催化功能性建筑涂料,实现了可见光光催化效应。使用紫外-可见光吸收光谱研究该功能性涂料对紫外线的吸收能力;采用菌落计数法研究该涂料在可见光照射下对金黄色葡萄球菌的杀灭性能。同时分析了纳米粉体种类、引入量及方式对涂料紫外线的吸收性能和抗菌性能的影响。     

Long-term weathering behavior of UV-curable clearcoats: Depth profiling of photooxidation,UVA, and HALS distributions

The long-term weathering performance of two UV-curable clearcoat systems was studied using in-plane microtomy in combination with infrared spectroscopy, UV spectroscopy, and ESR spectroscopy. Oxygen transport characteristics were also studied using the half-time method. The photooxidation versus depth profile was highly dependant on the presence of hindered amine light stabilizers (HALS) for both coating systems. Ultraviolet light absorbers (UVA) had little effect on the photooxidation profile. A photooxidation gradient was formed in both clearcoats due to a reduction in oxygen solubility when compared to standard thermoset clearcoats. This gradient was only seen in formulations not containing HALS. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, on October 27–29, 2004, in Chicago, IL.