Polyanionic metal salt, preparation method thereof and heat stabilizer

A polyanion and heat stabilizer technology, applied in the field of polyvinyl chloride heat stabilizers, can solve the problem that the main stabilizer and auxiliary heat stabilizer are difficult to disperse in the same microscopic area, and achieve good heat stability effect and high degree of coordination Effect

Active Publication Date: 2021-07-02
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem that the main stabilizer and auxiliary heat stabilizer of the traditional PVC heat stabilizer are difficult to disperse in the same microscopic area in the PVC matrix, the present invention provides a method that can simultaneously introduce the structure of the main stabilizer and auxiliary heat stabilizer The same microscopic area, which greatly improves the thermal stability of the thermal stabilizer, and the functionally adjustable polyanionic metal salt

Method used

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  • Polyanionic metal salt, preparation method thereof and heat stabilizer
  • Polyanionic metal salt, preparation method thereof and heat stabilizer
  • Polyanionic metal salt, preparation method thereof and heat stabilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of norfloxacin zinc stearate (A):

[0046] Dissolve 1 mol of zinc acetate in 100 mL of 50% ethanol aqueous solution, then add 1 mol of norfloxacin and stearic acid to the above solution, adjust the pH value of the solution to 4.0, react at 80°C for 5 hours, filter the precipitate and wash with ethanol After washing with the aqueous solution, place it in an oven at 60°C and dry to constant weight to obtain norfloxacin zinc stearate (A);

[0047](2) carry out batching according to following formula: 2phr norfloxacin zinc stearate (A), 6phr epoxy soybean oil, 30phr dibutyl terephthalate, 0.5phr antioxidant 1010, 0.5phr antioxidant 168, 0.5phr PE wax, 0.5phr stearic acid, 5phr hydrotalcite, heat stabilizer;

[0048] (3) Add the heat stabilizer to the 100phr PVC matrix and mix evenly. After pre-plasticizing in an oven at 60°C for 10 minutes, place it on a double-roll mill at 180°C. Mix at a high speed for 3 minutes to obtain a PVC sample; the obtained PVC s...

Embodiment 2

[0050] (1) Preparation of oxaquilic acid dimethacrylate aluminum stearate (B):

[0051] Dissolve 1 mol of aluminum isopropoxide in 100 mL of chloroform, then add 1 mol each of oxacrylic acid, dimethacrylic acid and stearic acid to the above solution, adjust the pH value to 8.0, and react at 50°C for 4 hours. After the precipitate was filtered and washed with chloroform, it was dried in a drying oven at 70°C to constant weight to obtain aluminum oxquilic acid dimethacrylate stearate (B);

[0052] (2) Ingredients are prepared according to the following formula: 3phr oxaquilic acid aluminum stearate dimethacrylate (B), 3phr epoxy soybean oil, 2phr β-diketone, 2phr stearic acid, 0.5phr PE wax, 10phr phthalate Dibutyl formate, 1phr antioxidant 1010, 1phr antioxidant 168, 3phr calcium carbonate, heat stabilizer;

[0053] (3) Add the heat stabilizer to the 100phr PVC matrix and mix evenly. After pre-plasticizing in an oven at 60°C for 10 minutes, place it on a double-roll mill at 18...

Embodiment 3

[0055] (1) Preparation of magnesium orotate dimethacrylate (C):

[0056] Dissolve 1 mol of magnesium ethoxide in 100 mL of 50% ethanol aqueous solution, then add 1 mol of orotic acid and dimethacrylic acid to the above solution, adjust the pH value to 5.0, react at 40°C for 3 hours, filter the precipitate and use After washing with an aqueous ethanol solution, dry to constant weight in a drying oven at 50°C to obtain magnesium orotic acid dimethacrylate (C);

[0057] (2) Dosing according to the following formula: 3phr magnesium orotate dimethacrylate, 2phr pentaerythritol, 4phr beta-diketone, 2phr stearic acid, 2phr PE wax, 15phr plasticizer, 2phr antioxidant 1010, 2phr antioxidant (3) Add the heat stabilizer to the 100phr PVC matrix and mix evenly, pre-plasticize in an oven at 60°C for 10min, place it on a double-roll mill at 180°C, and heat it at 11r / min and 9r / min front and rear roll speeds for 3min to obtain a PVC sample; the resulting PVC sample was further compressed i...

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Abstract

The invention relates to the technical field of polyvinyl chloride heat stabilizers, solves the problem that a main stabilizer and an auxiliary heat stabilizer of a traditional PVC heat stabilizer are difficult to disperse in the same microscopic area in a PVC matrix, and provides a polyanion metal salt, a heat stabilizer and application thereof. The polyanionic metal salt has the following structural formula in the specification , wherein M1<2 +> is a divalent metal ion, M2<3 +> is a trivalent metal ion, and R1, R2 and R3 are organic anions. The polyanion metal salt has function adjustability, and PVC heat stabilizers with different functions and containing the polyanion metal salt can be customized by adjusting the anion structure; and the heat stabilizer has the advantages that the compatibility of anions and cations is high, the same cation is combined with two or more anions, so that the heat stabilizer has enough anion groups to make up the defects generated in the PVC stabilizing process of the cation, and the heat stabilizer can achieve a good heat stabilizing effect on the premise of a small dosage.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride (PVC) heat stabilizers, in particular to a polyanion metal salt, a preparation method thereof, and a heat stabilizer. Background technique [0002] Heat stabilizers are essential processing aids for PVC processing, and their research continues to deepen with the development of the PVC industry. In today's environment where humans pay more and more attention to environmental protection and green health, heavy metal toxic heat stabilizers such as lead salts and chromium salts are gradually eliminated, and metal salts and their complexes that do not contain heavy metals have become mainstream products of heat stabilizers. Calcium zinc heat stabilizer is dominant. However, a single calcium-zinc heat stabilizer cannot be directly used as a heat stabilizer, and various other auxiliary heat stabilizers are needed to make up for the deficiency of the calcium-zinc heat stabilizer in the process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/098C08K5/3462C08K5/3437C08K5/1515C08K5/523C08L91/00C08L27/06C08L23/06
CPCC08K5/098C08K5/3462C08K5/3437C08K5/1515C08K5/523C08L91/00C08L27/06C08L2201/08C08L2205/03C08L23/06C08K13/02
Inventor 施燕琴王旭鲁淞彦陈路凯陈思马猛何荟文
Owner ZHEJIANG UNIV OF TECH
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