聚酯消光剂二氧化钛粉体的改性  

Modification of polyester delustring agent of titanium dioxide

作　　者：余江涛 蒋惠亮 施长年[2] 张景臣[2] 

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214036 [2]仪征化纤股份有限公司产品技术开发中心,江苏仪征211900

出　　处：《合成纤维工业》2004年第6期31-33,共3页China Synthetic Fiber Industry

摘　　要：采用多磷酸酯表面活性剂(ADDP)与十二烷基苯磺酸钠／磷酸酯(LAS／PE)两种表面活性剂体系对聚酯消光剂二氧化钛粉体(TA-300)改性。结果表明:质量分数均为3％的ADDP与LAS／PE体系改性的TA-300对去离子水的接触角由0°分别增到了130°与109°;吸油量由0.74 mL／g均降到了约0.28 mL／g,糊粘度由3 930 mPa·s分别降到了230 mPa·s和240 mPa·s。DSC表明:ADDP体系的放热峰在360℃左右,热稳定性优于LAS／PE体系。在PET中加入ADDP(质量分数为3％)改性的TA-300,熔融挤出时的网前压力在3.2-4.3 MPa,改性TA-300在PET中有很好的分散性和热稳定性。The polyester delustring agent of titanium dioxide (TA-300) was modified with polyphosphate ( ADDP) surfactant and a surfactant system containing sodium dodecyl benzene sulfonate (LAS/PE) and phosphate. The results showed that when TA-300 was modified with 3% ADDP and LAS/PE separately, the contact angle between TA-300 and de-ionized water was increased from 0° to 130°and 109°, the oil absorption both decreased from 0.74 mL/g to 0. 28 mL/g, the paste viscosity decreased from 3 930 mPa·s to 230 and 240 mPa·s, respectively. The DSC results showed that the exothermic peak of ADDP surfactant was observed at about 360℃, which indicated that ADDP was better than LAS/PE surfactant system in thermal stability. PET added with 3% ADDP-modified TA-300 had the pressure before network from 3.2 MPa to 4.3 MPa. The modified TA-300 showed good dispersity and thermal stability in PET.

关 键 词：改性 二氧化钛粉体 消光剂 聚酯 LAS 吸油量 PET 体系 DSC 

分 类 号：TQ340[化学工程—化纤工业]