Synthesis process of diacetyl epoxy glyceryl oleate

Abstract

The invention discloses a synthesis process of diacetyl epoxy glyceryl oleate. The synthesis process of the diacetyl epoxy glyceryl oleate comprises the following steps: a, performing esterification reaction: performing esterification reaction on esterification raw materials comprising glycerin and oleic acid under the action of an esterification catalyst at 115 to 190 DEG C for 1.5 to 4.5 hours to produce monoolein; b, performing acetylation reaction: performing acetylation reaction on the monoolein and an acetylation reagent under the action of an acetylation catalyst at 90 to 160 DEG C for 2 to 10 hours to produce diacetyl glyceryl oleate; c, performing epoxidation reaction: performing reaction on the diacetyl glyceryl oleate and hydrogen peroxide under the catalytic action of an epoxidation catalyst and a weak acid at 60 to 80 DEG C for 2 to 4 hours to produce the diacetyl epoxy glyceryl oleate. The prepared diacetyl epoxy glyceryl oleate serving as a plasticizer is applied to plastic, and has the advantages of high stability, high flowability and high compatibility with the plastic.

Description

technical field [0001] The invention relates to a synthesis process of diacetyl epoxy olein. Background technique [0002] In recent years, the rapid development of the plastics industry has driven plasticizers and other plastic additives to grow at an average annual rate of 10.9%. Plasticizer is a functional product added to high molecular polymers to increase the plasticity of the material, make it easy to process, and endow the product with softness. It is widely used in toys, building materials, auto parts, electronics and medical components such as Among a large number of durable and easy-to-shape plastic products such as blood plasma bags and complete sets of infusion sets, they are the varieties with the largest production capacity and consumption in plastic processing aids, and their output accounts for about 60% of the total output of plastic additives, which is the largest among plastic additives. one of the species. At present, there are more than 200 kinds of p...

AI Technical Summary

Problems solved by technology

Epoxy oils have larger molecular weight, higher viscosity, and poor fluidity, but because their structure contains epoxy groups, they have better thermal stability and compatibility with plastics; glycerol triacetate has smaller molecules, and its The viscosity is smaller than that of epoxy oils. We combine the characteristics and properties of their mutual structures, hoping to find an epoxy ester plasticizer with a plasticizing effect similar to epoxy oils, but with low molecular weight and good fluidity

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