新型小分子黏土稳定剂的合成及性能

摘要

以溴代环己烷和烷基叔胺为原料合成了一类具有全新结构的黏土稳定剂,并考察其防膨效果和长效性,通过XRD和SEM分别从微观和直观上对所研制产品防膨效果进行表征.产品A的防膨率为77.06%;冲洗11次后,膨胀率为28.70%;由XRD谱图可知其晶粒大而完整,层间距为1.309 nm.结果表明,自制产品A具有防止黏土矿物水化膨胀、控制黏土微粒分散运移等一系列优良性能.%A series of new type clay stabilizers were synthesized by using cyclohexyl bromide and alkyl tertiary amine as raw materials. The anti-swelling durability of the product has been investigated. Using XRD and SEM respectively to analysis the intuitive and microscopic anti-swelling effect of the agents. The rate of anti-swelling of product A is 77.06％;after flushing 11 times,the swell rate is 28.70％. According to X-ray Diffraction pattern, the grain is large and integrated, the interlayer distance is 1.309 nm. It shows that product A has excellent ability to prevent the hydration swelling and dispersion of clay.