摘要
在微波加热条件下,研究十八烷基磷酸酯改性重质碳酸钙的工艺条件。结果表明,改性最佳工艺条件为:改性剂用量2.5%,微波功率为中档,改性时间为10 min。在此条件下,所得产品活化度94.5%,吸油值由0.365 2 mL/g变为0.204 5 mL/g,粘度由204 mPa.s变为132 mPa.s,沉降体积由1.51 mL/g变为0.95 mL/g,白度由85.3%变为95.4%,碳酸钙性能明显提高。与常规水浴加热相比,微波辅助改性时间大大减小,产品性能更优。
Under the conditions of microwave heating,the modification conditions of calcium carbonate by 18 alkyl phosphate is studied.The results showed that the optimizing process condition are as follows：the amount of modifier 2.5%,microwave power for the mid-range,modification time of 10 min.In this condition,the product＇s activation degree 94.5%,deposition volume changed from 1.51 mL/g to 0.95 mL/g.Oil absorption value changed from 0.365 2 mL/g to 0.204 5 mL/g,viscosity changed from 204 mPa·s to 132 mPa·s,white degree changed from 85.3% to 95.4%.The modified products property are improved,the microwave heating time is reduced while the property is better compered with water bath.
出处
《应用化工》
CAS
CSCD
2012年第10期1788-1790,1795,共4页
Applied Chemical Industry
基金
贺州学院重点学科建设项目(2011ZDXK02)
关键词
微波加热
十八烷基磷酸酯
重质碳酸钙
改性
microwave heating
18 alkyl phosphate
calcium carbonate
modification
