层状结晶二硅酸钠质量稳定性研究--相变特性分析  

Study on the Quality Stability of Layered Crystalline Sodium Disilicate--Analysis of Phase Transformation Characteristics

作　　者：许海涛 XU Haitao(Shandong Guanlin Enterprise Development Co.,Ltd,Dongying,Shandong 257091,China)

机构地区：[1]山东冠林企业发展有限公司,山东东营257091

出　　处：《中国洗涤用品工业》2023年第7期49-55,共7页China Cleaning Industry

摘　　要：利用XRD法研究了层状结晶二硅酸钠(HSST-Ⅱ)在蒸馏水、硬水、普通洗衣粉、自然存放等条件下的稳定性及相变情况,从中找到相变规律,发现某些结果与有些文献描述的不一致。研究发现HSST-Ⅱ在低温低浓度蒸馏水中不稳定,易向无定型转变;在高温高浓度蒸馏水中不稳定,易向无定型及β相转变;在硬水中比较稳定;在普通洗衣粉制浆喷雾干燥工艺中不稳定,易向α相转变;自然存放1年以及所生产的浓缩洗衣粉在敞开包装后自然存放1年,也没有发现晶相破坏的迹象,说明自然吸潮对HSST-Ⅱ晶相影响不大,适宜后配料工艺生产浓缩洗衣粉。In this paper,the quality stability and phase change of crystalline layered sodium disilicate(HSST-Ⅱ)in distilled water,hard water,ordinary washing powder,natural storage and other conditions were studied by the method of XRD.The stability and phase transition under different conditions were investigated,and some results were found to be inconsistent with those described in some literature.The research results found that HSST-Ⅱis unstable in low temperature and low concentration distilled water and tends to change into unformed phase easily.It can also change into unformed phase orβphase easily in high temperature and high concentration distilled water.It’s comparative stable in hard water.It will change intoαphase easily in the spray-drying process of ordinary common washing powder.We also found that the crystal phase of HSST-Ⅱis not destroyed in natural storage for a year and the crystal phase of the concentrated washing powder produced with HSST-Ⅱin natural store for a year is not destroyed too.The natural moisture absorption has little effect on the crystal phase of HSST-II,and it is suitable for the production of concentrated laundry detergent using a post ingredient process.

关 键 词：层状结晶二硅酸钠 HSST-Ⅱ 质量稳定性 相变特性分析 

分 类 号：TQ649.62[化学工程—精细化工]