Combination stabilizers can be classified as follows:
In general, light yellow to yellow brown oil-like liquids, with a constant temperature of 1. 0-1. 1 with a good heat tolerance, free from sulphide contamination, and with a epoxy booster, which can be used to increase stability, are active in blowing agents。
2. Liquid calcium zinc compound
Due to the different compositions and natures, it is generally light yellow to yellow clear oily liquids with a constant temperature weight of 1. 0 to 1. 05. It is a non-toxic stabilizer of the pvc and is used primarily as a stabilizer for food packaging film, and for the artificial tannery of vessel foam。
Common composite stabilizers include liquid zinc complexes; the main components of non-toxic liquid calcium zinc stabilizers are calcium hard butate, calcium ricin, zinc acetic anhydride, and epoxy soybeans, ultraviolet absorbents, etc. Liquid calcium and zinc stabilizers are generally selected for less fat than carbon, which is more soluble in organic solvents. Calcium and zinc salt; composite stabilizers such as liquid cadmium and liquid cadmium zinc complexes are mainly used in the processing of flexible pvc products。
