新型水杨酸盐型抗温抗盐起泡剂的合成与性能评价

Synthesis and Performance Evaluation of a New Salicylate Type Foaming Agent with Temperature and Salt Resistance

张太亮 张径晗 张雅丽

ZHANG Tailiang，ZHANG Jinghan，ZHANG Yali

以马来酸酐、十二醇和水杨酸为原料，对甲基苯磺酸为催化剂，合成了一种水杨酸盐型新型起泡剂。起泡剂最佳合成条件为：在无溶剂条件下，马来酸酐、十二醇、水杨酸单体摩尔比为1.2∶1∶1，催化剂加量3%，反应温度80℃。该起泡剂溶液的表面张力较低，起泡剂加量为3000 mg/L时的表面张力为20.9 mN/m。在常温下，该起泡剂抗KCl能力达到40 g/L、抗CaCl2能力达到30 g/L，抗油能力达到25%，抗温能力达到140℃。图6 表3 参17

With maleic anhydride，lauryl alcohol and salicylic acid as raw material，p-toluenesulfonic acid as catalyst，a new foaming agent of salicylate type was synthesized. The optimum synthesis condition was obtained as follows: solvent-free condition， 1.2∶1∶1 the monomer mole ratio of maleic anhydride，lauryl alcohol and salicylic acid，3% catalyst，80℃ reaction temperature. The foaming agent solution had a low surface tension. When the mass concentration of foaming agent was 3000 mg/L，the surface tension reached 20.9 mN/m. At room temperature，the KCl resisting concentration of the foaming agent could reach 40 g/L and CaCl2 resisting concentration was 30 g/L. It had good resistance of oil（25%）and high temperature（140℃）.