What is a heat stabilizer for PVC gloves?
Heat stabilizers
Polyvinyl chloride (pvc) itself has no obvious melting point. It starts to soften at 80 ℃ to 83 ℃, and starts to flow when heated to 180 ℃. It starts to decompose when the temperature is above 120 ℃, so it starts to decompose before it reaches the fluidity and melting point, and the coking gradually turns from yellow to black! In this way, there is no way for PVC to make a product! The reaction of polyvinyl chloride is a chemical reaction. It is a reaction in which hydrogen chloride (HCl) is released after the PVC is heated. According to this reaction, as long as the Hcl is not quickly released, it can prevent the product from turning yellow and zooming during processing. So the heat stabilizer was born, its role is to capture Hcl to prepare dehydrochlorination reaction! Calcium-zinc composite stabilizer, due to its environmental protection, non-toxic, low-toxicity, high-efficiency lead-free and cadmium-free development, has attracted widespread attention from the country. Calcium and zinc stabilizers are gradually expanding the market. Calcium-zinc composite stabilizer non-toxic and environmentally friendly at moderate price
Colorants can dye PVC into various colors. Oil-soluble organic pigments and inorganic pigments are commonly used, and the dosage is about 0.01% to 2% of the resin. Ⅵ. The main function of the filler is to reduce the cost, save the amount of PVC, and improve the performance. Commonly used fillers are calcium carbonate, clay, diatomaceous earth and so on.
