热固性树脂微波固化研究进展

综述了近年来热固性树脂及其复合材料的微波固化研究进展,重点讨论了热固性树脂微波固化与加热固化的比较,热固性树脂微波固化工艺,颗粒、纤维增强树脂基复合材料的微波固化研究。研究发现微波固化和热固化在本质上是相同的,然而,微波极大地加速了固化进程,对体系性能无损害;加入无机、金属填料以及纤维可以改变体系介电性能,控制微波工艺对材料进行精加工。最后介绍了微波热效应原理,并展望了微波热固化技术发展与应用。     

UV涂料在户外的应用

本文简述了辐射固化技术的发展历史，回顾了我国辐射固化涂料的发展状况，介绍了户外用UV涂料的特点、制备及国外最新进展。     

改性蓖麻油制备UV光固化涂料的研究

研究了改性蓖麻油制备UV光固化涂料。由蓖麻油、环氧丙烯酸树脂UVR6100、光引发剂UVI6990制得的涂料具有优良的光泽、良好的柔韧性、良好的附着力与硬度，且当改性蓖麻油含量为40％时，漆膜性能最为优良。     

榫边扣合管状密闭输送带的制作及其质量优化

对用于制药、精细化工、建材业等输送松散及粉、粒物料不污染环境的榫边扣合管状密闭输送带的结构特点、技术要求、制造工艺和优化制品质量的技术措施及效果进行了实验探讨。     

合成氨、尿素系统蒸汽冷凝液的回收利用

通过对闲置的合成氨、尿素系统蒸汽冷凝液回收系统进行综合改造 ,将冷凝液有效回收 ,在保证各系统自身用水的同时 ,富余的冷凝液汇集后作为造气系统废热锅炉、煤气发生炉夹套锅炉用水 ,节省了大量的电站除氧软水及其热能 ,取得了显著的经济效益。     

Curing process of powdered phenol–formaldehyde resol resins and the role of water in the curing systems

The curing behavior of two kinds of commercial powdered resol phenolic resins was studied by differential scanning calorimetry. Liquid‐state ¹³C‐NMR spectroscopy was used to aid in understanding the curing behavior by detecting the structure of powdered resins. The reaction mechanism was interpreted with the dependency of activation energy on the degree of conversion. The results indicate that there are differences in the curing mechanism between core and face phenolic resins. The curing process of core resin was faster than that of face resin at the same reaction temperature. The water added in the curing system played an important role of plasticizer or diluent according to different curing stages and water content. In the initial curing stage, water mainly diluted the system and retarded the curing reactions. However, at the higher degrees of conversion, water played the role of plasticizer to decrease the effect of diffusion on the curing reactions to make the curing reactions more complete. The excess water added in the curing system played the role of diluent at almost all stages during the curing process. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 1371–1378, 2003     

中温固化树脂基体的研究

介绍一种环氧／硼胺树脂（ＥＭ）体系，该体系在１２０～１５０℃固化，固化物具有较好的综合性能，而且工艺性良好，具有较长的室温贮存期，可作为碳复合材料的基体，对体系进行了ＤＳＣ分析，给出了固化工艺。     

EPDM硫化橡胶的热稳定性研究

对ＥＰＤＭ的过氧化物硫化、硫黄硫化和含硫化合物硫化以及两种不同硫化体系并用的硫化胶热稳定性进行比较，优选热稳定性较好的硫化体系用于产品的制造。采用过氧化二异丙苯（ＤＣＰ）硫化的硫化胶虽具有极好的热稳定性，但其耐撕裂性能较差，且价格较高。因此可考虑采用ＤＣＰ的并用硫化体系。当ＤＣＰ用量为５份，硫黄用量不超过１份时，硫化胶具有较好的热稳定性。     

高柔韧性聚氨酯丙烯酸酯的合成及应用

选用不同结构的多元醇作骨架，合成一系列高性能的聚氨酯丙烯酸树脂，并通过对聚氨酯丙烯酸树脂性能的对比研究，发现以聚丁二烯二元醇为骨架的聚氨酯丙烯酸酯树脂具有极佳的柔韧性和优异的低温耐曲折性。