荧光增白剂MST-H的制备与性能研究  

Synthesis and properties of fluorescent whitening agent MST-H

作　　者：吴毅斌[1] 王国森 陈斌[1] 

机构地区：[1]绍兴文理学院化学化工学院,浙江绍兴312000 [2]浙江宏达化学制品有限公司,浙江上虞312368

出　　处：《应用化工》2010年第1期52-55,69,共5页Applied Chemical Industry

摘　　要：采用三聚氯氰和苯胺-2，5-双磺酸单钠盐缩合后，再依次与DSD酸钠和吗啉进行缩合，制得荧光增白剂MST-H。反应条件：一次缩合反应温度5℃以下，pn值2.5—3.5；二次缩合反应温度35℃左右，pH值3.5—4.5；三次缩合反应温度85—90℃，pH值7.5—8.5。探讨了产品的紫外吸收检测条件，并和国内外同类产品进行了应用效果的比较。结果表明，该荧光增白剂适合在20mg／L的浓度下测定其吸光度值，白度提升率与国外同类产品相类似，耐酸碱性、耐硬水性能优于同类产品，具有良好的使用性能。The fluorescent whitening agent MST-H was synthesized from trichloro-triazine by firstly con- densation with monosodium salt of aniline-2,5-disulfonic acid, and then with sodium salt of DSD acid and morpholine subsequently. The reaction conditions were controlled as： for first condensation,5℃ below, and pH = 2.5—3.5 ; for second condensation, 35℃, pH = 3.5—4.5 ; and for third condensation, 85—90℃, pH = 7.5—8.5. The determination conditions of ultra-violet absorbency for the product were investigated, and its performance on application was compared with commercial products. The results indicated that it is suitable to determine the absorbency of MST-H agent at the concentration of 20 mg/L and below. Its performance on whiteness improvement was similar to commercial products, and had better application properties with good resistance of acid and alkaline media, and adaptability of hard water.

关 键 词：荧光增白剂 合成 白度 

分 类 号：TQ610.495[化学工程—精细化工]