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Ca/zn complex stabilizer is gradually favored by customers because of its non-toxic character.It represents the future development direction of stabilizer. Common ca/zn complex stabilizer is mainly used in the film, leather and other soft PVC products processing. However, due to the process of promoting environmental protection in recent years, the technical of ca/zn complex stabilizer has been greatly improved, high-performance ca/zn complex stabilizer is already available in rigid PVC products processing. It should be noted that any one product is not a panacea, it is impossible for the processing of all products, so we should choose suitable ca/zn complex stabilizer according the requirement of the products. For color products, we can choose ca/zn complex stabilizer with good long-term stability but no need excellent Initial colorability; for white or transparent products. We must use ca/zn complex stabilizer with excellent initial colorability. In addition, we also should consider about the lubricity and precipitates when we choose the ca/zn complex stabilizer.
The thermal stability of ca/zn complex stabilizer can be changed through adjusting the proportion between calcium and zinc. The long-term thermal stability will be better if add more calcium as well you can add more zinc to inhibit initial colouring. In order to achieve optimal results, we should adjust the proportion of calcium and zinc according to the requirements of different products processing. Therefore, we should consider function and proportion of calcium and zinc when we choose Organic co-stabilizers.