摘要
将糯米淀粉放入膨化机内加热加压,可得膨化糯米淀粉,并观察其在水中溶解性能及粘接强度。膨化糊化比加热糊化和加碱糊化更容易操作,糊化程度容易控制,糊化更彻底。从TG和DTG可知,膨化糯米淀粉的热稳定性更大;糯米淀粉经过膨化后颗粒崩解,亲水性羟基裸露在外面的更多,水溶性明显增大,在IR光谱图上显示为羟基吸收峰明显变宽变大;从SEM图可看出,膨化糯米淀粉的颗粒表面粗糙,更易与水亲和。结果表明,膨化糯米淀粉易溶于水、粘接强度大,在粘接剂行业、医药领域有广泛的应用。
To puff glutinous rice starch,observation of dissolved in the water performance,the size of the bonding strength. Put the glutinous rice starch extrusion machine,heating pressure can get puffed glutinous rice starch. Puffing pasting operation more easily than heat gelatinization and pasting the alkaline,gelatinization degree easy to control,pasting more thoroughly. TG and DTG showed that thermal stability of puffed glutinous rice starch is greater. Glutinous rice starch after puffing,starch granule disintegration,hydrophilic hydroxyl bare outside more,water-soluble increases obviously,hydroxyl absorption peaks in IR spectra obviously wider and bigger. Based on SEM,puffed glutinous rice starch granule surface rough,more easily and water affinity. Puffed rice starch soluble in water,adhesive strength,have wide application in the adhesive industry and medicine field.
作者
翟广玉
张会丽
张景亮
王世广
刘婕
张晶晶
刘金海
ZHAI Guang-yu ZHANG Hui-li ZHANG Jing- liang WANG Shi-guang L ZHANG Jing-jing LIU Jin-hai(Department of Pharmacy, Zhengzhou University of Indus- trial Technology, Zhengzhou 451100, China School of Nursing, Zhengzhou University, Zhengzhou 450052, China)
出处
《化学试剂》
CAS
北大核心
2017年第2期137-140,共4页
Chemical Reagents
基金
郑州地方高校技术技能名师工作室项目(郑教高〔2015〕70号)
关键词
膨化
糯米淀粉
粘合剂
expanding
glutinous rice starch
adhesive
