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Environmentally-friendly PVC calcium zinc composite stabilizer

A calcium-zinc composite and stabilizer technology, applied in the field of PVC stabilizers, can solve problems such as environmental pollution and health threats, achieve broad application prospects, reduce the chance of generation, and improve the effect of aging in the middle and later stages.

Inactive Publication Date: 2011-02-09
湘乡市贝特尔塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, a large number of stabilizers used in the PVC industry are heat stabilizers containing lead and cadmium. They are low in price and superior in performance. Cadmium will cause serious pollution to our living environment and threaten people's health

Method used

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  • Environmentally-friendly PVC calcium zinc composite stabilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: Weigh 20kg of zinc stearate, 30kg of calcium stearate, 10kg of stearyl benzoylmethane, 50kg of hydrotalcite, and 10kg of bisphenol A, put them into a mixer, and knead them evenly to obtain PVC environment-friendly stabilizer S1 .

Embodiment 2

[0016] Embodiment 2: Weigh 20kg of zinc stearate, 30kg of calcium stearate, 10kg of dibenzoylmethane, 50kg of hydrotalcite, and 10kg of bisphenol A, put them into a mixer, and knead them evenly to obtain PVC environment-friendly stabilizer S2.

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Abstract

The invention relates to a PVC stabilizer, in particular to an environmentally-friendly PVC calcium zinc composite stabilizer. The formula of the stabilizer comprises the following components in percentage by weight: 15 to 25 percent of zinc fatty acid, 20 to 30 percent of calcium fatty acid, 6 to 15 percent of beta-diketone, 35 to 50 percent of hydrotalcite and 8 to 15 percent of bisphenol. The stabilizer achieves the effects of strengthening HCl absorption, chelating ZnCl2, increasing hydroperoxyl radical supply and preventing PVC aging completely and three-dimensionally by using the synergetic stabilizing effect of the calcium fatty acid and zinc fatty acid and by combining an assistant heat stabilizer, and therefore the comprehensive heat proof and stabilizing effect of the product is much higher than those of monomer calcium and zinc. The whole system does not contain heavy metals such as lead and cadmium or substances of very high concern (SVHC) specified in the latest European registration, evaluation, authorization and restriction of chemicals (REACH) regulation. The stabilizer is in accordance with the new development trend of the world and is a material having a promising application prospect.

Description

technical field [0001] The invention relates to a PVC stabilizer, in particular to an environment-friendly PVC calcium-zinc composite stabilizer. Background technique [0002] At present, a large number of stabilizers used in the PVC industry are heat stabilizers containing lead and cadmium. They are low in price and superior in performance. Cadmium will cause serious pollution to our living environment and threaten people's health. However, how to remove lead and cadmium from the product during the PVC manufacturing process without losing the superior performance of the original lead and cadmium stabilizer is a difficult problem for every PVC processing industry. In the 1980s, the NCI of the United States proposed that DOP was suspected of causing cancer, which led to the "environmental hormone" storm, and then it was recognized by the European Union, and then its imported children's toys were restricted. How to use new technology and new technology to deal with these tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/098C08L27/06C08K5/07C08K5/13C08K3/26C08K13/02
Inventor 刘迪强李小淼
Owner 湘乡市贝特尔塑胶有限公司
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