水性聚氨酯胶粘剂的研制

以低聚物多元醇、二异氰酸酯和二羟甲基丙酸为主要原料制备了一种阴离子水性聚氨酯胶粘剂。探讨了不同种类的多元醇和异氰酸酯对预聚体的合成和乳液性能的影响,实验中发现用三乙胺做中和剂时存在着一个临界浓度。选用多种助剂最后配制得到了综合性能优良的水性聚氨酯胶粘剂。     

快固化淀粉粘合剂的研究

介绍了快固化玉米淀粉粘合剂的制备工艺,对制备参数进行了优化,可使粘合剂的初粘速度和干燥速度显著提高。     

Experimental Investigation of Epoxy Bonded Polymethylmethacrylate Joints

This paper presents an experimental investigation into various aspects of epoxy-bonded polymethylmethacrylate (PMMA) and PMMA-to-aluminium joints. The effects of adhesive thickness, overlap area, surface roughness, and environmental exposure on the joint strength were studied. Results indicated that the joint strength was not directly proportional to the overlap area, while sanding had a positive effect on the joint strength. A negative effect was observed when adhesive thickness was increased. The fatigue behaviour of adhesively-bonded joints under dynamic loading was found to be independent of frequency, for the range of values tested; however, it was dependent on the test temperature with greater reduction in fatigue life observed in PMMA-to-aluminium joints at higher temperature. Empirical equations from which the fatigue life of joints can be predicted were obtained by regression analysis. Intermittent fatigue testing of the joints was also performed. The epoxy adhesive tested proved to be a satisfactory choice for outdoor exposure. The rate of degradation of the adhesive was slow with the adherend itself degrading at a faster rate than the adhesive or the bondline.     

粘接低表面能材料的新型胶粘剂研究

详述了用于低表面能材料粘接的新型胶粘剂的制备过程,探讨了低表面能胶粘剂的粘接机理,并讨论了弹性体、三乙基硼烷胺络合物、丙烯酸单体等对低表面能材料胶粘强度的影响.     

TPR处理剂的研究

利用活性单体苯乙烯与氯丁橡胶、高苯乙烯热塑弹性体接枝聚合，所得产物稀释后用于ＴＰＲ（ＴｈｅｒｍａｌＰｌａｓｔｉｃＲｕｂｂｅｒ）粘接前的预处理，可明显提高剥离强度。     

聚酯酰胺热熔胶的合成及其性能研究

研究了以聚酯胶和聚酰胺胶为原料在催化剂作用下加热共熔,通过大分子链交换反应制备织物用聚酯酰胺热熔胶的方法。用聚酯胶的溶剂对所得产品进行溶取试验并且通过红外光谱分析都证明了链交换反应的存在。用该法所得产品粘接强度大,既耐水洗又耐干洗,适用于粘合衬生产。     

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.     

水性聚氨酯胶研究及应用

综述了国内外水性聚氨酯胶特点及应用,对水性聚氨酯乳液的制备及物理性质和聚氨酯胶层的性能进行分析和阐述。     

YW－1无机胶的性能及应用

叙述了ＹＷ－１无机胶的粘接强度，耐高、低温性能，耐水、油、酸、碱性能，耐老化性能等，并介绍了这种胶在机械工业方面的应用，举例说明了这种无机粘接可完全取代机械制造业中所有的过盈配合，因而能创造巨大的经济价值。     

“车家宝”胶在制氧机超低温管路漏气上的应用

本文对“东家宝”胶在制氧机超低温管路漏气上的应用作了简要的介绍。