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Dust-free environment-friendly calcium-zinc compound stabilizer as well as preparation method and application thereof

A calcium-zinc composite and stabilizer technology, applied in the field of chemical stabilizers, can solve problems such as the inability to meet market demand and the immature performance of calcium-zinc stabilizers, and achieve the effects of preventing migration and precipitation, improving performance and shortening the process flow

Inactive Publication Date: 2019-05-21
郴州万墨环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Calcium-zinc stabilizers have been widely used in foreign countries. Under the general trend of my country's current and future environmental protection, it has also become the first choice for lead stabilizer substitutes in various processing enterprises. However, the high price of imported calcium-zinc stabilizers makes most PVC products It is difficult for processing enterprises to accept it, and the performance of domestic calcium-zinc stabilizers currently on the market is not mature enough to meet market demand

Method used

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  • Dust-free environment-friendly calcium-zinc compound stabilizer as well as preparation method and application thereof
  • Dust-free environment-friendly calcium-zinc compound stabilizer as well as preparation method and application thereof
  • Dust-free environment-friendly calcium-zinc compound stabilizer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059]This embodiment provides a dust-free and environmentally friendly calcium-zinc composite stabilizer, which is composed of the following raw materials in mass percentage: stearic acid: 50%, zinc oxide: 1.5%, calcium oxide: 6.5%, calcium acetylacetonate: 10%, PE Wax: 8%, β-diketone: 4%, non-toxic phosphite: 5%, antioxidant: 6%, enhancer: 9%; the average particle size of ultrafine zinc oxide is 30nm; the ultrafine calcium oxide The average particle size is 40nm, the non-toxic phosphite is 4,4-diisoylidene bisphenol (12-14) carbon alkyl ester of phosphite; the antioxidant is antioxidant 1010, and the reinforcing agent is calcium carbonate;

[0060] The preparation method of the above-mentioned dust-free and environment-friendly calcium-zinc composite stabilizer specifically comprises the following steps:

[0061] S1. Stearic acid, zinc oxide and calcium oxide are mixed according to the above ratio, and then calcium stearate and zinc stearate are synthesized under the catalys...

Embodiment 2

[0064] This embodiment provides a dust-free and environmentally friendly calcium-zinc composite stabilizer. The main difference from Example 1 is that it consists of the following raw materials in mass percentages: stearic acid: 58%, zinc oxide: 4.2%, calcium oxide: 3% , Calcium acetylacetonate: 6%, PE wax: 12%, β-diketone: 0.8%, non-toxic phosphite: 9%, antioxidant: 1%, enhancer: 6%; the average particle size of ultrafine zinc oxide The diameter is 80nm; the average particle diameter of superfine calcium oxide is 80nm;

[0065] The preparation method of the above-mentioned dust-free and environment-friendly calcium-zinc composite stabilizer refers to the operation steps of Example 1, the main difference is that in step S1, the amount of hydrogen peroxide is 8‰ of the mass of hard acid, the reaction temperature is 120°C, and the reaction time 10min.

Embodiment 3

[0067] This embodiment provides a dust-free and environmentally friendly calcium-zinc composite stabilizer. The main difference from Embodiment 1 is that it consists of the following raw materials in mass percentages: stearic acid: 52%, zinc oxide: 4%, calcium oxide: 4% , Calcium acetylacetonate: 7%, PE wax: 15%, β-diketone: 1%, non-toxic phosphite: 6%, antioxidant: 3%, enhancer: 8%; the average particle size of ultrafine zinc oxide The diameter is 50nm; the average particle diameter of superfine calcium oxide is 60nm;

[0068] The preparation method of the above-mentioned dust-free and environment-friendly calcium-zinc composite stabilizer refers to the operation steps of Example 1, the main difference is that in step S1, the amount of hydrogen peroxide is 5‰ of the mass of hard acid, the reaction temperature is 110°C, and the reaction time 15min.

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Abstract

The invention belongs to the technical field of chemical stabilizers, and discloses a dust-free environment-friendly calcium-zinc compound stabilizer as well as a preparation method and application thereof. The dust-free environmentally-friendly calcium-zinc compound stabilizer is composed of the following raw materials by mass: 50-58% of stearic acid, 1.5-4.2% of zinc oxide, 3-6.5% of calcium oxide, 6-10% of calcium acetylacetonate, 8-15% of PE wax, 0.5-4% of beta-diketone, 5-10% of nontoxic phosphite, 1-6% of an antioxidant and 6-9% of an enhancer. The preparation method provided by the invention scientifically and rationally controls a compound ratio of calcium acetylacetonate to PE wax to beta-diketone to nontoxic phosphite to the antioxidant to the enhancer under a specific calcium-zinc salt ratio, to obtain the dust-free environment-friendly calcium-zinc compound stabilizer having excellent thermal stability, low production and use costs, high efficiency and no toxicity.

Description

technical field [0001] The invention belongs to the technical field of chemical stabilizers, and more specifically relates to a dust-free and environment-friendly calcium-zinc composite stabilizer and its preparation method and application. Background technique [0002] The production of PVC products requires the use of heat stabilizers to delay or prevent the zipper degradation of PVC molecules during thermal processing and prolong the service life of the products. PVC heat stabilizers can be divided into lead, cadmium, metal soap, organotin, etc. according to their components, among which lead stabilizers are the most widely used. However, in recent years, with the continuous deterioration of the ecological environment, people's understanding of environmental protection issues has become increasingly profound, and various environmental protection regulations have been increasingly improved. Heavy metal salt stabilizers such as lead and cadmium are gradually being replaced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08K13/02C08K5/00C08K5/098C08K3/26
Inventor 许林忠欧传高
Owner 郴州万墨环保科技有限公司
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