漆酚改性表面活性剂的制备与应用

Synthesis and Application of Acanthol Modified Surfactant

为了开发环保型表面活性剂以替代壬基酚聚氧乙烯醚,并将其应用到农药配方中,本文合成了不同环氧乙烷(EO)数的漆酚聚氧乙烯醚表面活性剂(QF)及其磷酸酯,测试其基本物理化学指标,并将其应用于高效氟氯氰菊酯乳油和水乳配方中。结果表明,在10%高效氟氯氰菊酯乳油配方中,QF-11和异癸醇聚氧乙烯醚(5EO,U5)协同后,在乳化和润湿性能上与NP-10比较接近。而由QF-11磷酸酯\蓖麻油聚氧乙烯醚(BY-125)制备的5%高效氟氯氰菊酯水乳剂液滴的平均粒径较小,热贮实验后粒径变化不大,是一个稳定性比较好的乳液体系。QF-11和U5协同后,可以成为NP-10替代品,而由QF-11磷酸酯/蓖麻油聚氧乙烯醚(BY-125)制备的5%高效氟氯氰菊酯水乳剂在乳化剂用量为6%时,其稳定性最佳。

In this paper,an environmentally friendly surfactant is developed to replace nonylphenol ethoxylates and applied to pesticide formulations.Critical micelle concentrations and surface tensions of Urushiol polyoxyethylene ether surfactants(QF)have been measured,and these surfactants were applied to the Cyhalothrin EC and EW formulation.Results show that the emulsification and wettability of the mixture(QF-11 and Isodecanol polyoxyethylene ether)were similar to those of NP-10 in 10%beta-cyhalothrin emulsifiable concentrate.The average particle size of 5%beta cyhalothrin EW prepared by QF-11 phosphate ester and castor oil polyoxyethylene ether(BY-125)is smaller.The particle size after heat storage remains stable,and it is a stable emulsifying system.When QF-11 and U5 work together,the mixture can be used as a substitute for NP-10.QF-11 phosphate can be used in the formulation of 5%beta-cyhalothrin EW.It is found that the stability of 5%beta-cyhalothrin EW formulation prepared by QF-11 phosphate ester and castor oil polyoxyethylene ether(BY-125)is the best,when the mulsifier dosage is 6%.