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Dedicated emulsion-type composite anti-oxidant for MBS (methyl methacrylate-butadiene-styrene) and preparation method of the dedicated emulsion-type composite anti-oxidant

A composite antioxidant, emulsion type technology, applied in the field of preparation of MBS resin, can solve the problems such as difficult to uniformly disperse oxidant solid particles, poor antioxidation effect, and no reports yet, achieve environmental protection, antioxidation and other problems. Good effect, simple process effect

Inactive Publication Date: 2015-03-25
SHANDONG RUIFENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 1. Poor antioxidant effect
[0012] 2. Added in the form of solid antioxidant powder, the solid particles of oxidant are difficult to disperse evenly in MBS latex
Easy to cause local yellowing consequences
[0013] 3. Emulsion-type composite antioxidant specially used for MBS resin and its preparation method have not been reported yet

Method used

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  • Dedicated emulsion-type composite anti-oxidant for MBS (methyl methacrylate-butadiene-styrene) and preparation method of the dedicated emulsion-type composite anti-oxidant
  • Dedicated emulsion-type composite anti-oxidant for MBS (methyl methacrylate-butadiene-styrene) and preparation method of the dedicated emulsion-type composite anti-oxidant
  • Dedicated emulsion-type composite anti-oxidant for MBS (methyl methacrylate-butadiene-styrene) and preparation method of the dedicated emulsion-type composite anti-oxidant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Prepare the emulsion type composite antioxidant specially for MBS resin of the present invention according to the following steps

[0057] ①. Preparation of antioxidant suspension

[0058] Accurately weigh 10 parts by weight of triethylene glycol bis[β-(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate,

[0059] β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate 10 parts by weight, dilauryl thiodipropionate 20 parts by weight, stearic acid 5 parts by weight , and 55 parts by weight of deionized water, put into an antioxidant suspension reactor, stir, heat up to between 60-75°C, keep warm and stir for 10 minutes, and prepare an antioxidant suspension for subsequent use;

[0060] ②. Preparation of emulsion type composite antioxidant

[0061] Under stirring, slowly add 0.7 parts by weight of sodium hydroxide to step ① into the antioxidant suspension prepared in step ①, and continue to mix evenly under stirring at a temperature of 60-75°C; then, control the sti...

Embodiment 2

[0064] Prepare the emulsion type composite antioxidant specially for MBS resin of the present invention according to the following steps

[0065] ①. Preparation of antioxidant suspension

[0066] Accurately weigh 15 parts by weight of triethylene glycol bis[β-(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate,

[0067] 18 parts by weight of n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 15 parts by weight of dilauryl thiodipropionate, 5.7 parts by weight of stearic acid , and 56.3 parts by weight of deionized water are put into an antioxidant suspension reaction kettle, under stirring, the temperature is raised to between 60~75° C., and the mixture is kept warm and stirred for 20 minutes to prepare an antioxidant suspension for subsequent use;

[0068] ②. Preparation of emulsion type composite antioxidant

[0069] Under stirring, slowly add 1.16 parts by weight of sodium hydroxide to step ① into the antioxidant suspension prepared in step ①, and continue to m...

Embodiment 3

[0072] Prepare the emulsion type composite antioxidant specially for MBS resin of the present invention according to the following steps

[0073] ①. Preparation of antioxidant suspension

[0074] Accurately weigh 20 parts by weight of triethylene glycol bis[β-(3-tert-butyl-4-hydroxyl-5-methylphenyl) propionate,

[0075] β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate 12 parts by weight, pentaerythritol tetrakis (3-lauryl thiopropionate) 20 parts by weight, oleic acid 8 Parts by weight and 40 parts by weight of deionized water are put into the antioxidant suspension reaction kettle, under stirring, the temperature is raised to between 60-75°C, and the mixture is kept warm and stirred for 30 minutes to prepare the antioxidant suspension. ;

[0076] ②. Preparation of emulsion type composite antioxidant

[0077] Under stirring, slowly add 1.12 parts by weight of potassium hydroxide to step ① into the antioxidant suspension prepared in step ①, and continue to mix ev...

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Abstract

The invention provides a dedicated emulsion-type composite anti-oxidant for MBS (methyl methacrylate-butadiene-styrene) and a preparation method of the dedicated emulsion-type composite anti-oxidant, and belongs to compositions taking high-molecular compounds as binders. The dedicated emulsion-type composite anti-oxidant comprises the following raw materials by mass: 5 to 20 parts of triethylene glycol bis[beta-(3-tert-butyl-4-hydroxy-5-methyphenyl)propionate (anti-oxidant 245), 5 to 30 parts of n-octadecyl-beta-(4-hydroxy-3,5-di-tert-butyl-phenyl)propionate (anti-oxidant 1076), 10 to 30 parts of dilauryl thiodipropionate or pentaerythritol tetrakis(3-dodecyl-thiopionate), 5 to 10 parts of stearic acid or oleinic acid, and 40 to 60 parts of deionized water. The dedicated emulsion-type composite anti-oxidant has the advantages that the oxidative degradation prevention efficiency is high; the compatibility to MBS latex is high; adverse effects on other performances of a PVC product are avoided; the heat-proof and solvent extraction-proof capabilities are high; adverse reaction between the dedicated emulsion-type composite anti-oxidant and other additives is avoided; toxicity, peculiar smell and solvent evaporation are avoided; convenience is brought for environmental protection; the performance is ideal; the preparation technology is convenient to operate; the preparation cost is lower.

Description

technical field [0001] The invention is an emulsion type composite antioxidant specially used for MBS resin and a preparation method thereof. It belongs to the composition with high molecular compound as the base material. It is especially suitable for the preparation of high-performance MBS resin as a polyvinyl chloride (PVC) resin modifier. Background technique [0002] Many polymers are relatively stable even when heated to very high temperatures in the absence of oxygen. However, it will undergo autocatalytic oxidation under the action of heat, light, mechanical force and oxygen during polymerization, processing, storage and use, resulting in oxidative degradation. [0003] Because most polymer materials can react with oxygen, during the molding, storage, and use of materials, as time goes by, polymer materials will be accompanied by discoloration and various physical and mechanical properties, which will lead to gradual degradation. Lost use value. This phenomenon i...

Claims

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Application Information

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IPC IPC(8): C08L51/04C08K5/00C08K5/134C08K5/372C08K5/09
Inventor 刘春信张振国张海瑜唐晓明
Owner SHANDONG RUIFENG CHEM
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