Addable heat stabilizer for tarpaulin

When tarpaulin manufacturers make tarpaulins, in order to enhance its use effect, they will add some additives, and heat stabilizer is one of the commonly used additives. However, what kind of heat stabilizers can be added? 1. Organotin: These heat stabilizers are mainly used in various soft PVC products that require transparency. Commonly used varieties are maleates, thiolates and carboxylates. Among them, di-n-octyl tin maleate, S, S'-bis(iso-octyl thioglycolate) di-n-octyl tin can be used as a non-toxic stabilizer for food and pharmaceutical packaging materials. 2. Composite metal salts: common types of heat stabilizers. It is usually sold as a pre-formed liquid, paste or powder. Commonly used varieties are barium-cadmium, barium-calcium-zinc, barium-zinc, calcium-zinc and calcium-magnesium-tin-zinc fatty acid salts. Such thermal stabilizers are often used in combination with organic adjuvants such as phosphites, epoxies, polyols and phenolic antioxidants to form composite thermal stabilizers that meet the requirements of different processing technologies and product applications. 3. Special heat stabilizer: refers to some pure organic compounds with special effects, such as α-phenylhydrazine, amino crotonate used in alkaline emulsion polymerization polyvinyl chloride, and asbestos-filled polyvinyl chloride floor materials. of pentaerythritol or dicyandiamide. 4. Lead salt: one of the earlier applications of heat stabilizers. It has excellent long-term thermal stability, weather resistance and electrical insulation, but it affects the transparency of the product, is toxic, has initial coloration, is easy to vulcanize, and has poor compatibility and dispersion with PVC. Lead salts do not lubricate and should be used in combination with metal soap lubricants. Commonly used varieties are ternary lead sulfate and dibasic lead phosphite. For the manufacture of opaque PVC sheets, pipes and wire and cable jackets.

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