A phosphorus-free fully bio-based flame-retardant epoxy resin with excellent thermal and mechanical properties and its green preparation method

Abstract

The invention discloses a phosphorus-free all-bio-based flame-retardant epoxy resin with excellent thermal and mechanical properties and a green preparation method thereof. The main structure of the epoxy resin is a network polymer composed of a first unit and a second unit; the first unit is shown as unit A; the second unit is unit B, unit C, unit D and Any one or several combinations of units E; the molar ratio of the first unit and the second unit is 2-5000:2-5000. The phase transition temperature of the prepared all bio-based resin material of the present invention is high (T g,DSC , 283.5°C), high rigidity (4.14GPa), wide operating temperature range, strong rigidity, belonging to special functional materials.

Description

A phosphorus-free fully bio-based flame retardant epoxy resin with excellent thermal and mechanical properties and the same green preparation method technical field The invention belongs to the technical field of macromolecular compounds, be specifically related to a kind of phosphorus-free complete thermal and mechanical properties excellent Bio-based flame retardant epoxy resin and green preparation method thereof. Background technique Epoxy resin macromolecule polymer materials are widely used in soft and hard decoration industries such as coatings and adhesives, and are also widely used. It is widely distributed in the field of electronics and electrical appliances, and it also has good engineering and technical applications in research fields such as functional composite materials. but At present, petroleum-based products are still the main applications in the market, among which petroleum-based bisphenol A system epoxy resin materials Commercial application,...

AI Technical Summary

Problems solved by technology

In addition, there are no new breakthroughs in the reports of high flexural strength epoxy resin materials, especially bio-based epoxy resin materials with high flexural strength.

[0004] Combined with the development of bio-based polymer green chemistry, there is less research on the development of epoxy resins with multifunctional and high mechanical properties. The present invention proposes a phosphorus-free all-bio-based flame-retardant epoxy resin with excellent thermal and mechanical properties and its Green preparation method

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