高分子泥浆处理剂的分子结构与其热稳定性的关系

Relationship Between the Heat-Stability of Polyele-ctrolytes Used as Water Loss Control Agents for Drilling Mud and Their Structures

本文用粘度、电导滴定、红外光谱、热重分析和热氧化发光等方法研究了四种分子链结构不同的泥浆处理剂的热稳定性.用这些处理剂调配的泥浆具有不同的抗温能力,实验结果说明处理泥浆的抗温能力与处理剂的分子结构有极密切的关系.

The heat-stability of four kinds polyelectrolytes, HPAM, Spu(1), Na-CMC, and;FGLS with different structures from each other, has been studied by the following methods: viscometry, conductimetric titration, IR, TGA and oxyluminescence.The changes of molecular weight and molecular structure, the results of TGA and the activation energies of oxidation as well showed that the heat-stabilities were in the following order:Spu(1)>FCLS>HPAM>Na-CMC.The heat-resistence of the drilling muds treated by these polyelectrolytes related closely to their structures.