【摘要】 本文对几种常用的浆料如:淀粉,变性淀粉,CMC,PVA,变性PVA,聚丙烯酸甲酯,聚丙烯酰胺等的发泡性能进行了研究。分析、讨论了影响浆液发泡的主要因素,如:浆液浓度、粘度、化学助剂、温度等等。通过实验,并经过数理统计分析计算,提出了泡沫粘度随时间变化的经验公式:η=α·t^-b。用显微摄影图片分析了浆液的泡沫直径分布及泡沫直径随时间变化的情况。更多还原

【Abstract】 Foaming characteristics of several kinds of commonly used adhesive, such as starch, modified starch, polyvinyl alcohol, modified polyvinyl alcohol, copolymers of methyl acryeates, polyacrylamide and carboxymethyl cellulose were studied. Main factors influencing foamability of size liquor, namely, concentration, viscosity, temperature and the existence of chemical auxiliaries etc. were measured and discussed. The empirical equation expressing the law of change of foam viscosity with respect to the time duration η=at^-b is proposed on the basis of statistical analysis of data obtained in experiments. The distribution of foam diameters and the change of diameters with respect to time duration were observed and measured by means of microscopy.更多还原