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以硬脂酸钙为参照,研究片钠铝石[NaAl(OH)2CO3]用作PVC热稳定剂的热稳定特性、透明性和电绝缘性。结果表明:片钠铝石具有类似于硬脂酸钙的热稳定特性,是一种长期型热稳定剂;在合理并用硬脂酸锌和β-二酮等有机辅助热稳定剂的情况下,具有与硬脂酸钙相当的热稳定效能,但透明性和电绝缘性明显优于硬脂酸钙。
Using calcium stearate as reference, the thermal stability, transparency and electrical insulation of dawsonite [NaAl (OH) 2CO3] as PVC heat stabilizer were studied. The results showed that dawsonite is a kind of long-term heat stabilizer with similar thermal stability to calcium stearate. When the organic assistant heat stabilizer such as zinc stearate and β-diketone is used reasonably, Has the equivalent of calcium stearate thermal stability, but the transparency and electrical insulation is significantly better than calcium stearate.