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A kind of zinc-containing complex, zinc-containing composite heat stabilizer and its preparation method and application

A composite heat stabilizer and zinc complex technology, which is applied in the direction of zinc organic compounds, 2/12 organic compounds without C-metal bonds, etc., can solve the problem of inability to apply soft transparent PVC thermal stability effects, etc. problem, achieve the effect of improving initial whiteness and long-term stability, low cost, and few steps

Active Publication Date: 2021-07-30
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problem that the existing calcium-zinc composite stabilizer cannot be applied to soft transparent PVC and the thermal stability effect is not good, the present invention provides a zinc-containing complex, which introduces a long chain of fat into the product, and improves the compatibility with PVC. Excellent compatibility, can be widely used in soft transparent PVC

Method used

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  • A kind of zinc-containing complex, zinc-containing composite heat stabilizer and its preparation method and application
  • A kind of zinc-containing complex, zinc-containing composite heat stabilizer and its preparation method and application
  • A kind of zinc-containing complex, zinc-containing composite heat stabilizer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0043] (1) Put 9.7g of zinc stearate and 80.9mL of absolute ethanol in a three-necked flask, heat and stir for 20min to dissolve completely, then dissolve 3.9g of 3-amino-1,2,4-triazole in 20.0mL Slowly drop it into a three-necked flask in absolute ethanol, stir evenly, the reaction temperature is 60° C., and the reaction time is 4 hours. After the reaction, cool to room temperature, filter, wash the filter cake with ethanol (200.0mL×3), put it in a blast oven, and dry it at 100°C to obtain the product distearic acid-bis(3-amino-1,2 ,4-triazole) zinc;

[0044] (2) The prepared distearic acid-bis(3-amino-1,2,4-triazole) zinc and epoxy soybean oil, magnesium aluminum hydrotalcite, dibenzoylmethane, triphenyl phosphite Ester, feed intake according to formula ratio, and stir and mix in high-speed mixer, stirring speed 80r / min, stir 6min, make zinc-containing composite thermal stabilizer of the present invention, the feed intake of concrete each raw material is shown in Table 1; ...

Embodiment 5-8

[0049] (1) Put 10.5g of zinc palmitate and 90.6mL of absolute ethanol in a three-necked flask, heat and stir for 18min to dissolve completely, then dissolve 4.6g of 3-aminopyrazole in 20.0mL of absolute ethanol, drop slowly into a three-necked flask, stirred evenly, the reaction temperature was 55°C, and the reaction time was 5 hours. After the reaction, cool to room temperature, filter, wash the filter cake with ethanol (200.0mL×3), put it in a blast oven, and dry it at 100°C to obtain the product dipalmitic acid-bis(3-aminopyrazole)zinc ;

[0050] (2) The prepared dipalmitic acid-bis(3-aminopyrazole) zinc and epoxy sunflower oil, magnesium aluminum hydrotalcite, dibenzoylmethane, and triisooctyl phosphite are fed according to the formula ratio, And stir and mix in high-speed mixer, stirring speed 60r / min, stir 10min and make zinc-containing heat stabilizer of the present invention, the feed intake of concrete each raw material is shown in Table 2;

[0051] Get each 4.0g of...

Embodiment 9-12

[0055] (1) Put 13.2g of zinc octanoate and 92.6mL of absolute ethanol in a three-necked flask, heat and stir for 15min to dissolve completely, then dissolve 10.7g of aminopyrazine in 20.0mL of absolute ethanol, and slowly drop into the three-necked flask In the flask, stir evenly, the reaction temperature is 75°C, and the reaction time is 3 hours. After the reaction, cool to room temperature, filter, wash the filter cake with ethanol (200.0mL×3), put it in a blast oven, and dry it at 100°C to obtain the product dioctanoic acid-zinc diaminopyrazine;

[0056] (2) The prepared dicaprylic acid-diaminopyrazine zinc and epoxy fatty acid methyl ester, zinc aluminum hydrotalcite, stearyl benzoyl methane, diisodecyl phosphite are fed according to the formula ratio, and in Stir and mix in the high-speed mixer, stirring speed 100r / min, stir 5min, make zinc-containing heat stabilizer of the present invention, the feed intake of concrete each raw material is shown in Table 3;

[0057] Tak...

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Abstract

The invention relates to the technical field of polymer material processing, in particular to a zinc-containing composite heat stabilizer, which comprises the following components in parts by weight: 35.0-50 parts of zinc-containing complexes, 5.0-20.0 parts of epoxy compounds, and 5.0-50 parts of hydrotalcite 15.0 parts, 10.0-25.0 parts of phosphite compounds and 6.0-20.0 parts of β-diketones. The present invention uses fatty acid zinc to react with nitrogen-containing compounds to form a complex, and introduces long fatty chains into the product, which improves the compatibility with PVC and can be widely used in soft transparent PVC; the zinc-containing complex is used as the main stabilizer , harmless to the environment, can effectively absorb hydrogen chloride, improve the initial whiteness and long-term stability of PVC products; there are few steps to synthesize zinc-containing complexes, the solvent ethanol used is pollution-free, no catalyst is used, low cost, high efficiency, suitable for Industrial mass production and popularization of use.

Description

technical field [0001] The invention relates to the technical field of polymer material processing, in particular to a zinc-containing complex, a zinc-containing composite thermal stabilizer and a preparation method and application thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the five most commonly used synthetic resins in the world, and its output is second only to polyethylene, ranking second in the world. PVC products have the characteristics of light weight and softness, high mechanical strength, chemical corrosion resistance, insulation, transparency, etc., and are widely used in industry, agriculture, construction, packaging and other fields. However, PVC has a fatal weakness, which is poor thermal stability during processing, and it is easy to release hydrogen chloride gas when heated, resulting in a decrease in its mechanical properties and a gradual darkening of its color. Therefore, stabilizers must be added during PVC production and p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F3/06C08K13/02C08K5/00C08K5/1515C08K3/26C08K5/526C08K5/07C08L27/06
CPCC07F3/003C08K3/26C08K5/0091C08K5/07C08K5/1515C08K5/526C08K13/02C08L2201/08C08L2201/10C08L27/06
Inventor 王旭陈思马彪王亚停马猛施燕琴何荟文
Owner ZHEJIANG UNIV OF TECH