Octenyl succinic anhydride modified potato starch(OSAS)with low-viscosity was prepared using acid- alcoholysis treatment,and the properties in submicroscopic morphology,RVA profile characteristics,transparency,ret- rogradation stability and emulsification stability were compared among native potato starch,acid-alcohol treated starch, OSAS,and acid-alcohol treated OSAS.
用酸醇解法制备了低黏度辛烯基琥珀酸马铃薯淀粉酯,并将其与马铃薯原淀粉、辛烯基琥珀酸马铃薯淀粉酯和酸醇解马铃薯淀粉在显微形态、RVA图谱、透明度、凝沉稳定性和乳化稳定性上的特点进行了研究对比;结果表明:经酸醇解和辛烯基琥珀酸酐酯化处理后,明显提高了马铃薯淀粉的透明度、凝沉稳定性和乳化稳定性。
The effects of drying temperature, the pH value of the initial media, types of phosphate, reaction time and temperature on the esterification process are also discussed, thus the optimal process conditions for preparing low-viscosity starch phosphate sizing agent are obtained.
考察了温度、盐浓度及加料方式与淀粉吸盐量的关系,研究了干燥温度、起始介质pH值、磷酸盐种类、反应温度和时间等对酯化反应的影响,获得低黏度磷酸酯淀粉最佳制备工艺条件。
Preparation and application of low viscosity epoxy pouring sealant;
低黏度环氧灌封胶的研制及应用
The low viscosity cationic starch for surface sizing was prepared by etherifying corn starch with 3-chloro-2-hydroxypropyl-trimethylammonium chloride after the starch was appropriately hydrolyzed by hydrochloric acid.
以玉米原淀粉为原料,经盐酸适度酸解后,通过3-氯-2-羟丙基三甲基氯化铵醚化制备低黏度阳离子淀粉。
A preparation method of low viscosity epoxy resin system for the RTM is proposed,and the effects of its every components on the performances have been studied in detail.
提供了一种低黏度的RTM用环氧树脂体系的制备方法,对各组分对其性能的影响进行了细致的研究,发现该改性环氧树脂体系具有优异的工艺性能,然后对该体系进行了表征,对其结构和性能的关系进行了研究,表明该树脂有非常好的高温性能。
Furthermore, it shows improved application properties such as low tack during application and of the dry film as well as high curl retention and humidity resistance.
此外 ,以它为定型聚合物的产品 ,具有在使用过程中和干膜的低黏腻性、极佳的卷曲保持率和良好的抗湿性。