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Preparation method of swill-cooked dirty oil alcohol acid prepolymer and preparation method of water-based acrylic resin dispersion modified with swill-cooked dirty oil alcohol acid prepolymer

A technology of water-based acrylic acid and waste oil, applied in coating and other directions, can solve the problem of high production cost, and achieve the effect of reducing raw material cost, low raw material cost and improving storability

Active Publication Date: 2018-12-28
CHANGZHOU GUANGHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resin has good storage stability and hydrolysis resistance, and the prepared water-based amino drying paint has high hardness, good adhesion and strong corrosion resistance, but the production cost is still high

Method used

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  • Preparation method of swill-cooked dirty oil alcohol acid prepolymer and preparation method of water-based acrylic resin dispersion modified with swill-cooked dirty oil alcohol acid prepolymer
  • Preparation method of swill-cooked dirty oil alcohol acid prepolymer and preparation method of water-based acrylic resin dispersion modified with swill-cooked dirty oil alcohol acid prepolymer
  • Preparation method of swill-cooked dirty oil alcohol acid prepolymer and preparation method of water-based acrylic resin dispersion modified with swill-cooked dirty oil alcohol acid prepolymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The raw material formula for preparing waste oil alkyd prepolymer mixture is shown in Table 1-1:

[0042] Table 1-1:

[0043]

[0044]

[0045] The specific steps of preparing waste oil alkyd prepolymer mixed solution by applying the above-mentioned raw material formula are as follows:

[0046] First, put waste oil, methyl propylene glycol, trihydroxypropane, and lithium hydroxide into the reactor, then pass inert gas into the reactor, and heat up to 80°C to start stirring and continue to heat up to 220-225°C. Keep warm at high temperature for 2 hours until the end of alcoholysis.

[0047] Then, the temperature was lowered, and when the temperature dropped to 200° C., the stirring was stopped, and the inert gas was stopped, and the raw materials monobutyltin oxide, isophthalic acid, maleic anhydride, antioxidant and xylene were metered into the following parts by weight, Start stirring, and feed inert gas, then heat up to reflux of xylene, enter the reflux ester...

Embodiment 2

[0057] The raw material formula for preparing waste oil alkyd prepolymer mixture is shown in Table 2-1:

[0058] table 2-1:

[0059] raw material name

Feeding amount, Kg

Specification

Waste oil

460

——

Methylpropanediol

160

Industrial products

Trihydroxypropane

400

Industrial products

lithium hydroxide

0.6

Chemicals

Isophthalic acid

520

Industrial products

Monobutyltin oxide

2

Chemicals

Maleic anhydride

80

Industrial products

antioxidant

3

Chemicals

Xylene

80

Industrial products

[0060] The specific steps of preparing waste oil alkyd prepolymer mixed solution by applying the above-mentioned raw material formula are as follows:

[0061] First, put waste oil, methyl propylene glycol, trihydroxypropane, and lithium hydroxide into the reaction kettle, then pass inert gas into the reaction kettle, and heat up to 80°C to st...

Embodiment 3

[0071] The raw material formula for preparing waste oil alkyd prepolymer mixture is shown in Table 3-1:

[0072] Table 3-1:

[0073]

[0074]

[0075] The specific steps of preparing waste oil alkyd prepolymer mixed solution by applying the above-mentioned raw material formula are as follows:

[0076] First, put waste oil, methyl propylene glycol, trihydroxypropane, and lithium hydroxide into the reaction kettle, then pass inert gas into the reaction kettle, and heat up to 80°C to start stirring and continue to heat up to 230-235°C. Keep warm at high temperature for 2 hours until the end of alcoholysis.

[0077]Then, the temperature was lowered, and when the temperature dropped to 200° C., the stirring was stopped, and the inert gas was stopped, and the raw materials monobutyltin oxide, isophthalic acid, maleic anhydride, antioxidant and xylene were metered into the following parts by weight, Start stirring, and feed inert gas, then heat up to reflux of xylene, enter t...

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Abstract

The invention discloses a preparation method of a swill-cooked dirty oil alcohol acid prepolymer and a preparation method of a water-based acrylic resin dispersion modified with the swill-cooked dirtyoil alcohol acid prepolymer. Swill-cooked dirty oil as a main raw material replaces vegetable oil and vegetable oil fatty acid, and through combination of methylpropanediol, 1,2,3-trihydroxypropane,isophthalic acid and the like, alkide resin which is low in cost, high in acid value and high in hydroxyl value is prepared to serve as a prepolymer bottom material; acrylic resin is modified with thealkide resin, after neutralization, deionized water is added, phase inversion is conducted through high-speed shearing to form the oil-in-water dispersion, and then the water-based acrylic resin dispersion is obtained, wherein the water-based acrylic resin dispersion is low in price, lower in VOC and odor (compared with traditional water-based acrylic resin), simple in process and excellent in comprehensive performance. The water-based acrylic resin dispersion prepared by using the method is suitable for production of water-based amino baking coating.

Description

technical field [0001] The invention belongs to the technical field of acrylic resin coatings, and in particular relates to a preparation method of waste oil alkyd prepolymer and a preparation method of modified water-based acrylic resin dispersion. Background technique [0002] Acrylic resin coating is a synthetic resin coating with acrylic resin as the main film-forming substance. Because of its excellent adhesion, water resistance, gloss and color retention, it is widely used in automobiles, hardware, engineering machinery, bridges and other fields. [0003] With the rapid development of modern industry and the increasing intensity of environmental governance, people have gradually put forward higher requirements for the coatings used. All kinds of coatings with high cost performance, low VOC content, energy saving and environmental protection are favored in the market. Traditional acrylic resin coatings must adapt to market demand, and must reduce raw material costs and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/78C08G63/52C08G63/49C08G63/20C08G63/81C08F283/01C08F212/08C08F220/18C08F220/14C09D151/08
CPCC08F283/01C08G63/20C08G63/48C08G63/52C08G63/78C08G63/81C09D151/08C08F220/1804
Inventor 周海颖赵绍洪
Owner CHANGZHOU GUANGHUI CHEM
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