Heat stabilizers category

Four categories of heat stabilizers
Lead salts: the first application of a PVC heat stabilizer . With a more excellent long-term thermal stability, weather resistance and electrical insulating properties, but the impact of product transparency, toxic, initial coloring, easy sulfide contamination compatibility with PVC and poor dispersion. No lubrication lead salts

Therefore, with the metal soaps are used in combination. There are three basic varieties commonly lead sulfate, dibasic lead phosphite. Used for opaque PVC plates, tubes and wire and cable sheathing manufacturing.
Metal complex type: The most common one pack stabilizer . Often in liquid, paste or powder form with a pre-sale. Common varieties of barium - cadmium, barium - calcium - zinc, barium - zinc, calcium - zinc and calcium - magnesium - Asian tin - zinc salts of higher fatty acids. Such heat stabilizers often

Organic auxiliary agents (such as phosphite, epoxy compounds, polyhydric alcohols, and phenolic antioxidants, etc.) and used to form products to adapt to different application requirements and processing of complex-type heat stabilizers.
Organic tin: These heat stabilizers main requirements for a variety of soft transparent PVC products. Common varieties of maleic acid esters, thiol esters and carboxylic acid salt. Among them, n-octyl tin maleate, S, S'-bis (isooctyl thioglycolate), di-n-octyl tin, can be used

Is non-toxic stabilizer for the food and pharmaceutical packaging materials.
Heat stabilizers for special purposes: a specific effect that certain pure organic compounds such as polyvinyl chloride emulsion for use in alkaline α-phenyl indole, amino crotonic acid esters, asbestos filler used in PVC flooring pentaerythritol or dicyandiamide.