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A kind of bio-based degradable epoxy resin adhesive and preparation method thereof

A technology of epoxy resin glue and official epoxy resin, which is applied in the direction of epoxy resin glue, adhesive, adhesive type, etc. The effect of degradable properties, high crosslink density, excellent mechanical properties

Active Publication Date: 2021-03-19
扬州市文祺材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has been no research report on the preparation of biodegradable epoxy resin adhesives with xylitol-based polyfunctional epoxy resin as the main component.

Method used

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  • A kind of bio-based degradable epoxy resin adhesive and preparation method thereof
  • A kind of bio-based degradable epoxy resin adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A bio-based degradable epoxy resin adhesive, the preparation method of which comprises the following steps (each raw material is calculated in parts by weight):

[0038] (1) Preparation of xylitol-based polyfunctional epoxy resin

[0039] ①Mix 100 parts of xylitol and 120 parts of sodium carbonate evenly, add 700 parts of 3-bromopropene dropwise at 60°C, keep warm for 30 hours after the addition, wash, extract, absorb and dry to obtain allyl sylated xylitol;

[0040] ②Stir and mix 100 parts of allylated xylitol obtained in step ①, 800 parts of toluene and 200 parts of acidic styrene ion resin, and then add 350 parts by weight of aqueous hydrogen peroxide dropwise at 60°C. Insulated reaction for 80h, after washing, extraction, adsorption, drying, and rotary evaporation, xylitol-based polyfunctional epoxy resin was obtained;

[0041] (2) Add 100 parts of xylitol-based polyfunctional epoxy resin and 35 parts of butyl glycidyl ether into the reactor, turn on high-speed me...

Embodiment 2

[0046] A bio-based degradable epoxy resin adhesive, the preparation method of which comprises the following steps (each raw material is calculated in parts by weight):

[0047] (1) Preparation of xylitol-based polyfunctional epoxy resin

[0048] ①Mix 100 parts of xylitol and 80 parts of sodium acetate evenly, add 550 parts of 3-chloropropene dropwise at 40°C, keep warm for 40 hours after the addition, wash, extract, absorb and dry to obtain allyl sylated xylitol;

[0049] ②Stir and mix 100 parts of allylated xylitol obtained in step ①, 500 parts of N,N-dimethylformamide and 100 parts of phosphotungstic heteropoly acid, and then add 200 parts of isopropyl Phenyl peroxide, heat preservation reaction for 50h after the dropwise addition, washing, extraction, adsorption, drying, and rotary evaporation to obtain xylitol-based polyfunctional epoxy resin;

[0050] (2) Add 100 parts of xylitol-based polyfunctional epoxy resin and 5 parts of glycerol epoxy resin into the reactor, turn...

Embodiment 3

[0055] A bio-based degradable epoxy resin adhesive, the preparation method of which comprises the following steps (each raw material is calculated in parts by weight):

[0056] (1) Preparation of xylitol-based polyfunctional epoxy resin

[0057] ①Mix 100 parts of xylitol and 120 parts of sodium carbonate evenly, add 700 parts of 3-bromopropene dropwise at 60°C, keep warm for 30 hours after the addition, wash, extract, absorb and dry to obtain allyl sylated xylitol;

[0058] ②Stir and mix 100 parts of allylated xylitol obtained in step ①, 800 parts of toluene and 200 parts of acidic styrene ion resin, and then add 350 parts by weight of aqueous hydrogen peroxide dropwise at 60°C. Insulated reaction for 80h, after washing, extraction, adsorption, drying, and rotary evaporation, xylitol-based polyfunctional epoxy resin was obtained;

[0059] (2) Add 100 parts of xylitol-based polyfunctional epoxy resin and 70 parts of phenyl glycidyl ether into the reactor, turn on high-speed m...

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Abstract

The invention discloses a biological based degradable epoxy resin adhesive and a preparation method thereof. The adhesive contains the raw materials in parts by weight: 100 parts of xylitol-based polyfunctional epoxy resin, 5-50 parts of a toughening agent, 10-80 parts of a curing agent, 40-70 parts of biological acid, 5-15 parts of an accelerator, 5-70 parts of a diluent and 5-20 parts of a coupling agent. The main components of the adhesive are biological sources, and the adhesive has the characteristics of wide sources, low cost, green and environmental protection and excellent performance,reduces the dependence on increasingly scarce oil resources, and reduces the irritation and toxicity to a human body.

Description

technical field [0001] The invention relates to the technical field of bio-based polymer materials, in particular to a bio-based degradable epoxy resin adhesive prepared from xylitol-based polyfunctional epoxy resin as the main component. Background technique [0002] Adhesive is a kind of functional polymer material, which can connect specific homogeneous or heterogeneous and complex-shaped objects together through a simple process, and can also endow some specific functions, such as insulation, thermal conductivity, electrical conductivity, Wave absorption, heat resistance, heat preservation, flame retardant, etc. have been widely used in various fields of the national economy. It is an indispensable and important fine chemical for production and life. It can be divided into epoxy resin adhesives according to the type of main components. , polyurethane adhesives, acrylic adhesives, silicone adhesives, etc. [0003] Epoxy resin adhesives were commercialized as early as the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00
CPCC09J163/00
Inventor 刘朋飞刘敬成马福文丁一
Owner 扬州市文祺材料有限公司