Method for preparing environmental-friendly calcium-zinc composite liquid stabilizing agent

A liquid stabilizer and calcium-zinc composite technology, which is applied in the field of preparation of environment-friendly calcium-zinc composite liquid stabilizer, can solve the problems of complex process, shortened reaction time and insufficient reaction, and achieves the effect of high efficiency and stable product quality.

Inactive Publication Date: 2009-11-11
浙江嘉澳环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quality of the product obtained by the saponification-metathesis process is relatively stable, but the reaction cycle is long, the process is complicated, and sewage is generated. The reaction time of the direct oxidation process is shortened, but high temperature reaction is required, and the reaction is not thorough enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Configure environment-friendly calcium zinc stabilizer (by weight) according to the following formula:

[0045] Calcium zinc metal soap 25 parts

[0046] 20 parts epoxy soybean oil

[0047] A mixture of antioxidant 2,6-tertiary butyl-4-methylphenol and bis(3,5-tertiary butyl-4-hydroxyphenyl) sulfide. 2 copies

[0048] Lubricant butyl stearate and glyceryl monostearate mixture: 2 parts

[0049] Phosphite 40 parts

[0050] Accelerator β-diketone compound 2 parts

[0051] The dynamic thermal stability experiment was carried out on a double-roll mill at a temperature of 175-180°C, and samples were taken every 5 minutes. The formula is as follows:

[0052] PVC(SG-5) 100

[0053] Calcium zinc stabilizer 3

[0054] ESO 3

[0055] The results showed that the PVC sheet began to change color after 22 minutes after adding the self-made liquid calcium-zinc heat stabilizer.

Embodiment 2

[0057] Calcium zinc metal soap 30 parts

[0058] Solvent oil, epoxy fatty acid methyl ester mixture 18 parts

[0059] Antioxidant 4 parts

[0060] Lubricant Glyceryl monostearate and ester wax mixture 1.5 parts

[0061] Co-stabilizer Acetate 45 parts

[0062]Accelerator β-diketone compound 1.5 parts

[0063] The dynamic thermal stability experiment was carried out on a double-roll mill at a temperature of 175-180°C, and samples were taken every 5 minutes. The formula is as follows:

[0064] PVC(SG-5) 100

[0065] Calcium zinc stabilizer 3

[0066] ESO 3

[0067] The results showed that the PVC sheet began to change color after 30 minutes after adding the self-made liquid calcium-zinc heat stabilizer.

Embodiment 3

[0069] Calcium zinc metal soap 35 parts

[0070] Solvent mineral oil, epoxy soybean oil mixture 15 parts

[0071] Antioxidant 3 parts

[0072] Lubricant glyceryl stearate 1 part

[0073] Co-stabilizer dibenzoylmethane, phosphite compound 45 parts

[0074] Accelerator β-diketone compound 1 part

[0075] The dynamic thermal stability experiment was carried out on a double-roll mill at a temperature of 175-180°C, and samples were taken every 5 minutes. The formula is as follows:

[0076] PVC (SG-5) 100 parts

[0077] Dioctyl phthalate (DOP) 40 parts

[0078] Calcium zinc stabilizer 3 parts

[0079] 3 copies of ESO

[0080] The results showed that the PVC sheet began to change color after 25 minutes after adding the self-made liquid calcium-zinc heat stabilizer.

[0081] At the same time, according to the same formula, the commercially available liquid calcium-zinc heat stabilizer was compared on the double-roller mill. As a result, the PVC sheet began to change color afte...

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PUM

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Abstract

The invention relates to a method for preparing environment-friendly calcium-zinc composite stabilizing agent, in particular to a method for preparing the environmental-friendly calcium-zinc composite stabilizing agent by adopting efficient chelating technology. The four ingredients of binary or multivariate saturated acid calcium, binary or multivariate saturated acid zinc, antioxidant and co-stabilizer are mixed in a reaction kettle according to certain mass ratios, the mixture is heated in the reaction kettle, and chelating agent with the mass ratio of 5 to 10 percent is added, when the reaction temperature is controlled to be higher than the melting point of lubricant, about 10 to 20 percent of the lubricant is added to the reaction kettle, the mixture is fully mixed, and then the mixture is cooled to a normal-temperature state and stirred at a low speed, thus obtaining the product. The method has the advantages that the coating of the calcium-zinc composite stabilizing agent is modified at a temperature higher than the melting point of the lubricant, thus greatly reducing the hydroscopic property and further increasing the electric resistivity of PVC products. Simultaneously, the stabilizer of static coating modification is more beneficial to PVC dispersion, thus improving the stabilizing effect.

Description

technical field [0001] The invention relates to a preparation method of a chemical stabilizer, in particular to a preparation method of an environment-friendly calcium-zinc composite liquid stabilizer. technical background [0002] Polyvinyl chloride (PVC) is one of the most widely used synthetic resins in the world. It has the characteristics of light weight, high strength, flame retardancy, corrosion resistance, insulation, and transparency. PVC begins to decompose obviously at 100-150°C, and ultraviolet mechanical force, oxygen, ozone, hydrogen chloride and active metal ions will greatly accelerate the decomposition of PVC. The thermal oxygen aging of PVC is more complicated, and several chemical reaction processes are carried out at the same time. There are not only decomposition and dehydrochlorination, but also oxidative chain scission and crosslinking. In addition, there is a reaction process of a small amount of aromatization and macromolecular chain scission to gen...

Claims

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Application Information

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IPC IPC(8): C08K5/00C08K5/098C08L27/06
Inventor 傅俊红沈健章金富王艳涛
Owner 浙江嘉澳环保科技股份有限公司
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