摘要
采用熔融聚合法,以三羟甲基丙烷(TMP)为中心核,以苹果酸为AB_2型共聚单体,成功制备了苹果酸型超支化聚合物(HBP),采用红外光谱和凝胶渗透色谱对其结构进行了表征,并将其应用于循环水的阻垢方面,探讨了阻垢剂添加量和水样温度对其阻硫酸钙(CaSO_4)的能力。结果表明,HBP具有良好的分散性能,且对CaSO_4具有良好的阻垢性能,当阻垢剂的用量为12 mg/L时,其阻CaSO_4垢的阻垢效率达到95.2%,且在较宽的温度范围内使用,均具有较高的阻垢效率;HBP能抑制钙垢晶体的生长,降低CaSO_4垢的结晶度,从而起到抑制结垢的能力。
The malic-acid hyperbranched copolymer(HBP) was successfully prepared by melt polymerization using trimethylolpropane as a core and malic acid as an AB2 monomer, and its structure was characterized by FTIR and GPC. Then, HBP was appliedfor the scale inhibition of circulating water. The effects of HBP dosage and system temperature on the inhibition efficiency of CaSO4 scale were studied. The results indicated that HBP exhibited excellent dispersibility and scale inhibition performance for CaSO4, and it achieved a scale inhibition rate of 95.2 % for CaSO4at an HBP concentration of 12 mg/L. Moreover, HBP also showed excellent inhibition efficiency when used in a wide temperature range. XRD analysis demonstrated that HBP could inhibit the growth of calcium scale crystals and reduce its crystallinity, thus inhibiting the scaling capability.
作者
龚伟
李美兰
路玉娇
申月
冯馨正
刘白玲
GONG Wei;LI Meilan;LU Yujiao;SHEN Yue;FENG Xinzheng;LI Bailing(Key Laboratory of Comprehensive Utilization of Tailings Resources in Shaanxi Province,Shangluo University, Shangluo 726000, China;Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China)
出处
《中国塑料》
CAS
CSCD
北大核心
2019年第4期26-32,共7页
China Plastics
基金
陕西省教育厅重点项目(18JS032)
关键词
苹果酸
超支化聚合物
阻垢
硫酸钙
结晶度
malic acid
hyperbranched polymer
scale inhibition
calcium sulfate
crystallinity
