High-thermal-stability liquid calcium-potassium-zinc stabilizer for producing foamed PVC material

Abstract

The invention discloses a high-thermal-stability liquid calcium-potassium-zinc stabilizer for producing a foamed PVC material, and relates to the technical field of plastic additives. The high-thermal-stability liquid calcium-potassium-zinc stabilizer for producing a foamed PVC material is prepared from the following components in percentage by weight: 45-55 parts of stearyl epoxy potassium oleate, 27-33 parts of stearyl epoxy zinc oleate, 8-12 parts of a calcium component additive, 2-3 parts of an auxiliary heat stabilizer, 10-12 parts of a catalyst and 18-24 parts of a solvent. The stearyl epoxy potassium oleate is synthesized from stearic acid, epoxy oleic acid and potassium oxide through a one-step method, and the stearyl epoxy zinc oleate is synthesized from stearic acid, epoxy oleic acid and zinc oxide through a one-step method. According to the high-thermal-stability liquid calcium-potassium-zinc stabilizer for producing a foamed PVC material, based on the characteristic that a potassium-zinc stabilizer is insufficient in thermal stability, a calcium component additive is added on the basis of the liquid potassium-zinc stabilizer to greatly improve the thermal stability of the liquid calcium-potassium-zinc stabilizer, and the raw materials are wide in source and easy to synthesize, have no adverse effect on the environment and meet the national requirement for green development.

Description

technical field [0001] The invention belongs to the technical field of plastic additives, in particular to a high thermal stability liquid calcium potassium zinc stabilizer for the production of foamed PVC materials. Background technique [0002] The global environmental protection requirements are becoming increasingly stringent, human beings have increasingly strong requirements for the purification of the environment on which they live, and the pressure of regulations restricting the use of heavy metal heat stabilizers is increasing, making the development and production of heat stabilizers more non-toxic, efficient and multifunctional. The pace of direction development is accelerated. Tin-free, low-lead, low-dust and substitution of lead salts have become the focus of the development of heat stabilizers all over the world. There are relatively few new chemical substances launched as stabilizers, while compound stabilizers are overwhelming. [0003] Potassium zinc stabi...

AI Technical Summary

Problems solved by technology

[0004] Liquid potassium-zinc stabilizers are generally used in the production of foamed PVC materials. Based on the characteristics of insufficient thermal stability of potassium-zinc stabilizers, existing potassium-zinc stabilizers generally have the disadvantage of poor thermal stability, which affects the stability of potassium-zinc. The wear resistance and weather resistance of the agent cannot meet the production needs of PVC foam materials, and because the potassium zinc stabilizer has the advantages of non-toxicity, ease of use, easy measurement, and flexible adjustment of the formula in the processing process, so if the potassium zinc stabilizer is increased The thermal stability of the zinc stabilizer will further expand its application range, and the market prospect is relatively broad