摘要
为实现产业化生产辐射改性淀粉，以玉米淀粉为原料，对采用^60Co辐照制备辐射改性淀粉的机制和工艺进行了研究和探讨，并检测了改性后淀粉浆料的理化性能。结果表明，采用辐射剂量4～10kGy对玉米淀粉进行辐照，可使淀粉粘度下降到5～14mPa·s，同时其浆料性能指标也完全可满足纺织应用要求。相对于化学法制备改性淀粉，辐射法具有工艺简单、操作方便、改性程度稳定、易于控制等优点，在纺织、食品、造纸等行业将有广泛的应用前景。
In order to commercialize the radiation modification of starch, corn starch was irradiated with different dose of 60Co gamma radiations. Some basic physical and chemical prop- erties of the resulted modified starch paste were measured with emphasis on the viscosity stability and tensile strength. The results indicate that irradiation of corn starch with a dose of 4-10 kGy can decrease its viscosity to 5-14 mPa·s, and the tensile strength can meet the standard set up for textile paste. In comparison with chemical modification for starch, radiation modification is simpler in technology, more convenient in operation, more stable in modification quality, and easier to control. The mechanism of radiation modification of starch was also discussed.
出处
《核化学与放射化学》
EI
CAS
CSCD
北大核心
2007年第1期53-56,共4页
Journal of Nuclear and Radiochemistry
基金
广州市科研机构科研设备资金项目
关键词
辐射
玉米淀粉
改性
radiation
corn starch
modification
