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Air-seasoning alkyd resin prepared from discarded edible oil and application of air-seasoning alkyd resin

A technology for waste cooking oil and alkyd resin, applied in coatings, polyester coatings, etc., to achieve the effect of reducing costs

Inactive Publication Date: 2013-09-25
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no air-drying alkyd resin prepared from waste cooking oil on the market.

Method used

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Examples

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Effect test

Embodiment

[0019] Taking the preparation of 1000kg of the air-drying alkyd resin of the present invention as an example below, the parts by weight of the raw materials for its preparation are: 15 parts of waste cooking oil (150 kg of waste oil), 14 parts of dry vegetable oil (40 kg of tung oil+linseed oil 100 kg), 14 parts of polyol ( Pentaerythritol 74kg) 7.4 parts, catalyst (lithium hydroxide 0.17kg) 0.017 parts, dibasic acid or acid anhydride (phthalic anhydride 116 kg) 11.6 parts, monobasic acid (rosin 55 kg) 5.5 parts and dilute solvent (No. 200 Solvent oil 250kg + xylene 275kg) 52.5 parts.

[0020] The specific steps for preparing air-drying alkyd resin are:

[0021] ⑴Put 150kg of crude waste edible oil into the reaction kettle, start stirring, add 4.5kg of tap water, 0.15kg of phosphoric acid, rise to 63°C and stir for 0.5 hours, stop stirring, let stand for 1 hour, and let go of the water phase in the lower layer of the material; start stirring again , add 6kg activated clay, ri...

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PUM

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Abstract

The invention discloses air-seasoning alkyd resin prepared from discarded edible oil. The alkyd resin comprises the following raw materials of 10-20 parts of discarded edible oil, 10-20 parts of dry vegetable oil, 6-12 parts of polyhydric alcohols, 0.01-0.02 part of catalyst, 10-15 parts of binary acid or anhydride, 2-8 parts of monoacid and 45-55 parts of diluent. Compared with the prior art, the air-seasoning alkyd resin has the advantages that the discarded edible oil with low price is adopted to replace part of dry vegetable oil or vegetable oil acids used in the traditional formula, the cost of per ton of the prepared air-seasoning alkyd resin can be reduced by about 800yuan, and the property of the air-seasoning alkyd resin is not lower than that of an existing product.

Description

technical field [0001] The invention relates to an alkyd resin, in particular to a low-cost air-drying alkyd resin prepared by using waste cooking oil and its application. Background technique [0002] Alkyd resin is a polyester resin modified with fatty acid, in which the fatty acid content is 30-75wt%, and it is one of the important basic resins in the coating industry. According to the drying method, alkyd resin can be divided into two types: air-drying type and oven-drying type. The air-drying alkyd resin mainly forms a solid paint film through the oxidative cross-linking reaction of the unsaturated bonds in the fatty acid under the action of the drier. The traditional air-drying alkyd resin mainly uses linseed oil, castor oil, soybean oil, catalpa Oil, tung oil and other dry vegetable oils or vegetable oleic acid to introduce unsaturated bonds. Although the air-drying alkyd resin must rely on unsaturated bonds to solidify into a film, the more unsaturated bonds, the b...

Claims

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Application Information

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IPC IPC(8): C08G63/49C09D167/08
Inventor 饶保林徐旭黄超梁金兴凌敏
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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