电石表面有机包覆技术的研究

Study on Organic Coating of CaC_2 Surface

通过正交实验研究了电石表面包覆的最佳工艺。选取包覆剂为温度20℃的食用菜籽油对电石进行20min的包覆,得到了均匀致密的有机包覆膜并对其进行红外光谱分析,表明电石的有机包覆过程中发生了三个重要的过程:(1)电石与有机物的物理包覆;(2)有机物在空气中发生了氧化反应;(3)在较长时间作用下,氧化油脂与少许电石发生了反应。

The best technology of surface coating of calcium carbide was investigated through orthogonal test. Selecting coating agent temperature is 20℃ of edible rapeseed for 20min coating, it got uniform density organic package labeling and analyzed by infrared spectrum. The surface of calcium carbide in the process of the organic coating has three important process ： （ 1 ） The calcium carbide with organic physical coating ; （2） The oxidation reaction of organic matter in the air happened ; （3） Under the effect of a long time, the reaction of oxidated oil and a little calcium carbide happened.