阻燃OMMT/WPU纳米复合材料的制备及性能研究

采用端羟基聚丁二烯（HTPB）剥离层状有机蒙脱土（OMMT）为纳米片层,并与异佛尔酮二异氰酸酯（IPDI）、二羟甲基丙酸（DMPA）等单体通过原位聚合法制备了OMMT纳米片改性的水性聚氨酯（OWPU）纳米乳液及胶膜。利用小角XRD、TEM、DLS、EDS、TGA、LOI、CONE以及SEM对样品的结构和性能进行了表征。结果表明,HTPB剥离的OMMT纳米片的衬度均匀,完整性较好;改性后OWPU的乳液粒径增大,胶膜的弹性模量、热稳定性、抗熔滴性和阻燃性能均得到明显地改善,其中弹性模量可提高59.4%,热释放速率峰值可降低36.9%;燃烧炭渣表面形貌显示,瓦片状蒙脱土相互穿插形成了具有团簇结构的蒙脱土覆盖层。     

铸造用聚氨酯粘合剂组份Ⅰ酚醛树脂合成研究

铸造用的聚氨酯粘合剂组合物，主要由极性和非极性溶剂溶解的酚醛树脂组份I和非极性溶剂稀释的聚异氰酸酯组份Ⅱ组成。组份Ⅰ酚醛树脂结构、性能是决定该类粘合剂性能因素之一。本文对铸造用聚氨酯粘合剂的组份Ⅰ酚醛树脂结构、合成方法、原料材料选择等问题进行了分析讨论，为铸造用聚氨酯粘合剂的组份Ⅰ的制备和苯醚型酚醛树脂的合成提供一些参考。     

CR／MMA乳液接枝共聚物的研制

用乳液接枝共聚法制备ＣＲ／ＭＭＡ共聚物，讨论ＣＲ乳液、引发剂、接枝温度、ＭＭＡ用量对接枝共聚转化率，接枝ＭＭＡ含量、ＭＭＡ接枝效率和粘接性能的影响，用红外光谱对接枝共聚物进行表征，该共聚物具有较好的粘接性能。     

水性聚氨酯材料配方设计技巧

介绍了优选法的0.618法和分数法,对其进行改进创新和原理证明,并应用于生产涂料配方设计中。     

木材用交联型醋丙胶粘剂的研制

研制一种由醋酸乙烯、丙烯酸丁酯、特种单体共聚而成的水性交联型环保胶粘剂以替代目前广泛使用的氨基树脂,适应绿色环保要求。     

Adhesion Mechanisms of Polyurethanes to Glass Surfaces I. Structure-Property Relationships in Polyurethanes and Their Effects on Adhesion to Glass

Polyurethanes were prepared from toluene diisocyanate (TDI), 1-4-butane diol (BDO) and polycaprolactone-based triols with varying molecular weights. Among each molecular weight triol-based urethane, hard segment content was varied from 20% to 70%. Differential scanning calorimetry, tensile testing, and Iosipescu shear testing were done on all the various urethanes prepared. Thermal characterization data revealed the dependence of phase separation on hard segment content as well as on the triol molecular weight. Tensile data and Iosipescu shear data further confirmed the observations made from the DSC data. The data further indicated that phase separation can greatly improve the modulus of cross-linked segmented urethanes. Adhesion of these urethanes to glass surface was evaluated using soda-lime float glass plate. Urethane samples were cast on the air side of the glass plates and adhesion was measured in shear mode. Adhesion data indicated that in addition to hard segment content, modulus, cross-link density, and molecular weight of the triols, phase separation seems to be a major factor in controlling adhesion. Surfaces of the failed adhesion samples were also analyzed and the failure mode was found to be cohesive, in varying degree, with the different urethane systems.     

VAc/AA改性的VAE乳液高速接嘴卷烟胶的研制

介绍了VAc/AA改性的VAE乳液高速接嘴卷烟胶的制备方法。研究了各种因素对胶粘剂性能的影响。结果表明 :VAc/AA用量增加 ,VAE乳液的粘接性能增强。选择与VAE乳液相适应的乳化剂和控制适宜的pH值 ,可以增加VAE乳液的稳定性。采用滴加引发剂和混合单体的方法 ,可以避免过速反应产生及大粒径胶粒生成     

FR-1型粘合剂的性能及其应用

介绍了FR-1型粘合剂用于氟橡胶、硅橡胶、三元乙丙橡胶与金属热硫化粘着，制作橡胶金属复合制品的情况。金属骨架经喷砂或表面化学处理并用溶剂清洗之后，涂FR—1型粘合剂，经预烘干后与橡胶进行热硫化粘着，效果良好。     

海洋生物及其粘附机理——藤壶、帽贝、海葵、管栖蠕虫

主要介绍海洋生物中藤壶、帽贝、海葵、管栖蠕虫对其基材的粘附机理。这对于人体生物胶粘剂的研制开发和海洋环境中的防污行业意义重大。