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Free radical polymerization-based preparation method of water-based coating

A water-based paint, free radical technology, applied in the direction of coating, etc., to achieve good film-forming and adhesion effects

Inactive Publication Date: 2018-11-16
成都米特瑞新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The patent application number is 200510029409.7 "Processing Method of Catering Waste Oil" and the patent application No. 200710090972.4 "Recovery and Purification Method of Waste Oil" provides the processing and purification method of catering waste oil, and the patent application number is 201210031854.7 "One A kind of method and its application of using waste oil to prepare plastic color dispersing oil "provides the use of waste oil to prepare toner dispersing oil for plastic color matching, but it has never been reported that waste oil is used as a raw material to prepare acrylic paint

Method used

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Experimental program
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Effect test

Embodiment

[0016] The preparation method based on the waterborne paint of radical polymerization, comprises the following steps:

[0017] (1) Use solid-liquid separation technology to obtain liquid waste oil, then wash the liquid waste oil with deionized water and strong polar organic solvents that cannot dissolve the waste oil, and finally add a decolorizer until the waste oil is a light yellow transparent clear liquid, That is to obtain purified waste oil;

[0018] (2) Combine deionized water, pH adjuster, emulsifier, dispersant, initiator, purified waste oil and acrylate in a weight ratio of 90:0.15-0.23:1.6-2.2:0.1-0.5:0.5-1.5:43- Add 54:40-60 in turn to the reactor and stir for 10-14min at a stirring speed of 300-800r / min to obtain the waste oil pre-emulsion;

[0019] (3) 2 / 10 of the total weight of the waste oil pre-emulsion obtained in step (2) and deionized water of equal weight are added to the reaction kettle, and the temperature is raised to 70-80° C., and the heat preservati...

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PUM

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Abstract

The invention discloses a free radical polymerization-based preparation method of a water-based coating. The preparation method comprises the following steps: (1) obtaining liquid illegal cooking oilby adopting a solid-liquid separation technology, then washing the liquid illegal cooking oil respectively with deionized water and a strong-polarity organic solvent in which the illegal cooking oil cannot be dissolved, and finally adding a decoloring agent till the illegal cooking oil is faint yellow, transparent and clear liquid, thus obtaining purified illegal cooking oil; and (2) adding the deionized water, a pH modifier, an emulsifier, a dispersant, an initiator, the purified illegal cooking oil and acrylic ester into a reaction kettle in sequence according to a weight ratio of 90:(0.15-0.23):(1.6-2.2):(0.1-0.5):(0.5-1.5):(43-54):(40-60), and stirring for 10 to 14 min at a stirring speed of 300-800 r / min, thus obtaining illegal cooking oil emulsion. According to the free radical polymerization-based preparation method disclosed by the invention, instable unsaturated oil with low molecular weight is subjected to free radical polymerization to form stable copolymer resin water emulsion with high polymerization degree, so that the prepared water-based coating is high in film forming property and adhesive force and can be widely applied to the field of decoration of a building external wall and the like.

Description

technical field [0001] The invention relates to the field of modification, in particular to a preparation method of water-based paint based on free radical polymerization. Background technique [0002] Waste oil is a common name for kitchen waste oil, also known as swill oil, which generally refers to the edible oils and fats that are discarded and discharged after food processing in the catering industry and family kitchens. Along with the rapid development of my country's catering industry, the amount of waste oil produced is also increasing, and its processing is also more and more troublesome. [0003] The patent application number is 200510029409.7 "Processing Method of Catering Waste Oil" and the patent application No. 200710090972.4 "Recovery and Purification Method of Waste Oil" provides the processing and purification method of catering waste oil, and the patent application number is 201210031854.7 "One A method and application of using waste oil to prepare plastic...

Claims

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Application Information

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IPC IPC(8): C09D151/00C08F289/00C08F220/10C08F2/26C08F2/30
CPCC09D151/00C08F2/26C08F2/30C08F289/00C08F220/10
Inventor 包黎霞李睿阳倪玉英
Owner 成都米特瑞新材料科技有限公司