采用红外光谱法研究贝壳粉对PVC热降解行为的影响

Research on the influences of shell powder on the thermal degradation behaviour of PVC by IR

采用红外光谱法研究了不同温度下贝壳粉对PVC热降解行为的影响。结果表明,具有碳酸钙成分的贝壳粉虽然本身热分解温度很高,但作为PVC的热稳定剂效果并不理想,这对今后研究贝壳类助剂具有指导意义。

The influences of shell powder on the thermal degradation behaviour of PVC under different temperatures were studied by IR. The results showed that although the thermal decomposition temperature of shell powder containing calcium carbonate was high, its thermal stabilization effects on PVC were unfavorable. Thc results would have directive significance for the study of shell additives in the future.