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Vegetable oil-based epoxy prepolymer and preparation method thereof, vegetable oil-based UV curing prepolymer as well as preparation method and application thereof

An epoxy prepolymer, vegetable oil-based technology, applied in the application, epoxy resin glue, epoxy resin coating, etc., can solve the problem that the performance of the cured film of UV curing adhesive needs to be improved, and achieve good adhesion of the cured film , good promotion significance, and the effect of relieving stress

Active Publication Date: 2019-01-08
SOUTH CHINA AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention uses oleic acid ester alcohol to replace acrylate to prepare UV-curable adhesive, which improves the biodegradability of UV-curable adhesive, broadens the range of raw materials for UV-curable polyurethane, and reduces the pressure on petrochemical resources. The curing activity of UV-curable adhesives and the performance of cured films need to be improved

Method used

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  • Vegetable oil-based epoxy prepolymer and preparation method thereof, vegetable oil-based UV curing prepolymer as well as preparation method and application thereof
  • Vegetable oil-based epoxy prepolymer and preparation method thereof, vegetable oil-based UV curing prepolymer as well as preparation method and application thereof
  • Vegetable oil-based epoxy prepolymer and preparation method thereof, vegetable oil-based UV curing prepolymer as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1 tung oil-based UV curing prepolymer

[0034] The preparation method comprises the following steps:

[0035] (1) In terms of parts by mass, add 31.2 parts of tung oil D-A reaction product and 1.8 parts of deionized water into a three-necked flask with a stirring device and a condensing device, mix well, and react at a temperature of 80°C and stirring 4h, completely hydrolyze the anhydride bond in the tung oil D-A reaction product, then add 74 parts of epichlorohydrin and 3.64 parts of benzyltriethylammonium chloride, raise the temperature to 110°C, keep the reaction for 3h, then lower the temperature to 65°C, keep warm for 10min, add 64 parts of sodium hydroxide and 176 parts of calcium chloride, stir and mix well, then react for 4 hours at a temperature of 65°C, after the reaction is completed, dissolve the reaction solution in acetone and filter it with diatomaceous earth. Then remove excess epichlorohydrin and acetone in the filtrate by rotary distillati...

Embodiment 2

[0037] Embodiment 2 castor oil-based UV curing prepolymer

[0038] The preparation method comprises the following steps:

[0039] (1) In terms of parts by mass, add 15.6 parts of castor oil D-A reaction product and 0.9 part of deionized water into a three-necked flask with a stirring device and a condensing device. React for 2 hours to completely hydrolyze the acid anhydride bond in the castor oil D-A reaction product, then add 37 parts of epichlorohydrin and 3.64 parts of benzyltriethylammonium chloride, raise the temperature to 90°C, keep the reaction for 2 hours, then lower the temperature Lower to 55°C, keep warm for 10 minutes, add 32 parts of sodium hydroxide and 88 parts of calcium chloride, stir and mix well, and react for 3 hours at a temperature of 55°C. After the reaction, dissolve the reaction solution with acetone and use diatomaceous earth Filter through filter paper, then remove excess epichlorohydrin and acetone in the filtrate by rotary distillation at 40°C t...

Embodiment 3

[0041] Embodiment 3 linseed oil-based UV curing prepolymer

[0042] The preparation method comprises the following steps:

[0043] (1) In terms of parts by mass, add 25.6 parts of linseed oil D-A reaction product and 1.5 parts of deionized water into a three-necked flask with a stirring device and a condensing device. React for 3 hours to completely hydrolyze the anhydride bonds in the linseed oil D-A reaction product, then add 56 parts of epichlorohydrin and 2.46 parts of benzyltriethylammonium chloride, raise the temperature to 100°C, keep the reaction for 2.5 hours, and then add Lower the temperature to 60°C, keep it warm for 10 minutes, add 48 parts of sodium hydroxide and 127 parts of calcium chloride, stir and mix well, and react at a temperature of 60°C for 3.5 hours. After the reaction, dissolve the reaction solution with dichloromethane Filter with diatomaceous earth filter paper, then remove excess epichlorohydrin and dichloromethane in the filtrate by rotary distil...

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Abstract

The invention discloses a vegetable oil-based epoxy prepolymer and a preparation method thereof. The vegetable oil-based epoxy prepolymer has a structure shown by a general formula (I) shown in the specification. The invention further discloses a vegetable oil-based UV curing prepolymer as well as a preparation method and application thereof. According to the method, the vegetable oil-based epoxyprepolymer is firstly prepared by prepolymerizing a vegetable oil D-A reaction product with water and epichlorohydrin, and then the vegetable oil-based epoxy prepolymer reacts with pentaerythritol triacrylate to obtain the vegetable oil-based UV curing prepolymer; vegetable oil is introduced into the UV curing prepolymer, thereby greatly reducing the use amount of conventional petrochemical-derived raw materials. The vegetable oil-based UV curing prepolymer provided by the invention has very high UV curing activity and can be rapidly cured into a film in 10 to 60 s, and the cured film is goodin adhesion and excellent in physical properties, mechanical properties and thermal properties, and can be widely applied to the fields of UV curing coatings, inks, adhesives, 3D printing and other UVcuring materials.

Description

technical field [0001] The invention belongs to the field of UV curing materials, and in particular relates to a vegetable oil-based epoxy prepolymer and a preparation method thereof, a vegetable oil-based UV curing prepolymer, a preparation method and an application thereof. Background technique [0002] UV curing materials are mainly composed of reactive diluents, prepolymers, photoinitiators and additives. They have developed rapidly because of their advantages such as fast curing speed, low curing temperature, low pollution, and energy saving. , coatings, inks, optoelectronic functional materials and 3D printing have been widely used. Prepolymer is the main body of UV curing material, and its performance basically determines the main performance of the cured material. Therefore, the synthesis of prepolymer is an important link in the formulation design of UV curing material. The raw materials of traditional UV curing materials mainly come from petrochemical resources, a...

Claims

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Application Information

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IPC IPC(8): C08G59/12C09D163/00C09J163/00C09D11/102
CPCC08G59/12C09D11/102C09D163/00C09J163/00
Inventor 袁腾梁斌肖亚亮杨卓鸿李小平
Owner SOUTH CHINA AGRI UNIV
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