Method for preparing environmental-friendly calcium-zinc composite liquid stabilizing agent
A liquid stabilizer and calcium-zinc composite technology, which is applied in the field of preparation of environment-friendly calcium-zinc composite liquid stabilizer, can solve the problems of complex process, shortened reaction time and insufficient reaction, and achieves the effect of high efficiency and stable product quality.
Inactive Publication Date: 2009-11-11
浙江嘉澳环保科技股份有限公司
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The invention relates to a method for preparing environment-friendly calcium-zinc composite stabilizing agent, in particular to a method for preparing the environmental-friendly calcium-zinc composite stabilizing agent by adopting efficient chelating technology. The four ingredients of binary or multivariate saturated acid calcium, binary or multivariate saturated acid zinc, antioxidant and co-stabilizer are mixed in a reaction kettle according to certain mass ratios, the mixture is heated in the reaction kettle, and chelating agent with the mass ratio of 5 to 10 percent is added, when the reaction temperature is controlled to be higher than the melting point of lubricant, about 10 to 20 percent of the lubricant is added to the reaction kettle, the mixture is fully mixed, and then the mixture is cooled to a normal-temperature state and stirred at a low speed, thus obtaining the product. The method has the advantages that the coating of the calcium-zinc composite stabilizing agent is modified at a temperature higher than the melting point of the lubricant, thus greatly reducing the hydroscopic property and further increasing the electric resistivity of PVC products. Simultaneously, the stabilizer of static coating modification is more beneficial to PVC dispersion, thus improving the stabilizing effect.
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