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Method for preparing epoxy fatty acid glycol ester by microwave method

A technology of epoxy fatty acid and glycol ester, which is applied in the field of plastic additives, can solve the problems of inability to be popularized and applied in large quantities, poor extraction resistance and volatility resistance, and achieve green and clean production, high preparation efficiency, and improved durability. drawn effect

Inactive Publication Date: 2016-04-13
QUANZHOU NAISI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the current epoxidized fatty acid methyl ester plasticizers, which have poor extraction resistance and volatility resistance, and cannot be popularized and applied in large quantities

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 100 g of epoxy fatty acid methyl ester and 20 g of ethylene glycol into a microwave reactor with a reflux condensing device, heat and reflux with a microwave power of 400 w and stir for 30 min, and react until the gas is no longer evaporated. Stop heating to obtain epoxy fatty acid ethylene glycol ester.

Embodiment 2

[0023] Add 100g of epoxy fatty acid methyl ester and 30g of polyethylene glycol into the microwave reactor with reflux condensing device, microwave heating under reflux and stirring for 15min at a power of 800w, and react until the gas is no longer evaporated. Stop heating to obtain epoxy fatty acid polyethylene glycol ester.

Embodiment 3

[0025] Add 100g of epoxy fatty acid methyl ester and 30g of propylene glycol into the microwave reactor equipped with reflux condensing device, microwave heating and reflux stirring for 40min under the power of 1000w, and react until the gas is no longer evaporated. Stop heating to obtain epoxy fatty acid propylene glycol ester.

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Abstract

The invention relates to a method for preparing epoxy fatty acid glycol ester by a microwave method. The method is characterized in that in a microwave reactor, 100 parts by weight of epoxy fatty acid methylester and 15 to 50 parts by weight of dihydric alcohol are mixed in a microwave reactor; N2 is introduced; the microwave power and the reaction time are regulated; the temperature of steamed-out gas is controlled not to exceed 150 DEG C; the reaction stops when no gas is steamed out; the epoxy fatty acid glycol ester is obtained. The microwave reactor is used for performing ester exchange reaction; the reaction time is short; the preparation efficiency is high; the reaction which cannot be performed or which is difficult to carry out under the conventional backflow condition is performed under the microwave radiation condition. When the epoxy fatty acid glycol ester prepared by the method is used, the molecular weight of an epoxy fatty acid plasticizer is increased; the extraction-resistant and volatilization-resistant performance of the epoxy fatty acid plasticizer in a PVC (polyvinyl chloride) product can be greatly improved.

Description

technical field [0001] The invention relates to the field of plastic additives, in particular to a method for preparing epoxy fatty acid glycol esters by a microwave method. Background technique [0002] Phthalate esters are plasticizers with the widest application and the largest dosage, but phthalate plasticizer products are volatile during processing, and have exudation and migration after PVC finished products, and large doses enter The human body is always carcinogenic. Finding non-toxic, environmentally friendly alternatives to phthalates has become an urgent task. Vegetable oil-based plasticizers use natural vegetable oils to modify the structure of glycerides through functional group reactions to improve the compatibility of natural vegetable oils with PVC. The current research results in this area are mainly epoxidized grease. Due to the presence of epoxy groups, the epoxidized fatty acid methyl ester has better extraction resistance and volatility resistance tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D303/42C07D301/00
CPCC07D303/42C07D301/00
Inventor 陈昕雄
Owner QUANZHOU NAISI MATERIAL TECH
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