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
E

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

Example Embodiment

[0055] Example 1

[0056] Prepare the emulsion type composite antioxidant 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-hydroxy-5-methylphenyl)propionate,

[0059] β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate 10 parts by weight, didodecyl thiodipropionate 20 parts by weight, and stearic acid 5 parts by weight , And 55 parts by weight of deionized water, put into the antioxidant suspension reactor, stir, heat up to between 60 ~ 75 ℃, heat preservation stirring and mixing for 10 minutes, to prepare the antioxidant suspension, for later use;

[0060] ②. Preparation of emulsion type compound antioxidant

[0061] Under stirring, slowly add 0.7 parts by weight of sodium hydroxide to the antioxidant suspension prepared in step ① and step ①, and continue to mix evenly while keeping the temperature at 60~75℃; then, co...

Example Embodiment

[0063] Example 2

[0064] Prepare the emulsion type composite antioxidant 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-hydroxy-5-methylphenyl)propionate,

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

[0068] ②. Preparation of emulsion type compound antioxidant

[0069] Under stirring, add slowly to the antioxidant suspension prepared in step ① and 1.16 parts by weight of sodium hydroxide in step ①, continue to mix evenly while stirring at a temperatu...

Example Embodiment

[0071] Example 3

[0072] Prepare the emulsion type composite antioxidant 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 diethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate,

[0075] β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate n-octadecyl alcohol 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 reactor, and the temperature is raised to between 60~75°C under stirring, and the mixture is kept warm and stirred for 30 minutes to prepare the antioxidant suspension for use. ;

[0076] ②. Preparation of emulsion type compound antioxidant

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

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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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