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O-diallyl bisphenol a diglycidyl ether and its preparation process and application

A technology of ortho-diallyl bisphenol and diglycidyl ether, applied in the field of ortho-diallyl bisphenol A diglycidyl ether and its preparation process and application, capable of solving limitations, brittleness, impact resistance and stress Poor cracking ability and other problems, to achieve the effect of low equipment requirements, easy control of reaction, and stable process

Active Publication Date: 2018-02-16
LAIZHOU LAIYU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy resin has excellent physical and mechanical properties and electrical properties, and is widely used in coatings, adhesives, electronic packaging materials, etc., but due to its cross-linked network structure, it is brittle after curing, resistant to impact and stress crack The ability is poor, so its application is limited

Method used

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  • O-diallyl bisphenol a diglycidyl ether and its preparation process and application
  • O-diallyl bisphenol a diglycidyl ether and its preparation process and application
  • O-diallyl bisphenol a diglycidyl ether and its preparation process and application

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preparation example Construction

[0038] The preparation technology of o-diallyl bisphenol A diglycidyl ether, the reaction scheme is as follows:

[0039]

[0040] Brief description of the reaction route: o-diallyl bisphenol A and epichlorohydrin, under the catalysis of the catalyst triethylbenzyl ammonium chloride, under the condition of dropping liquid alkali, react to form o-diallyl Bisphenol A diglycidyl ether.

[0041] Process flow chart for the preparation of o-diallyl bisphenol A diglycidyl ether: as figure 1 shown.

[0042] The preparation process steps of the present invention are: feeding materials, etherification, adding alkali to keep warm, recovering epichlorohydrin, adding solvent, standing and separating, washing to neutrality, recovering solvent, and discharging.

Embodiment 1

[0044] (1) Feeding: Add 10.0kg of o-diallyl bisphenol A, 100g of catalyst triethylbenzyl ammonium chloride, and 6.82kg of epichlorohydrin into a 50L enamel reaction kettle in sequence, close the feeding port, and start stirring . The molar ratio of o-diallyl bisphenol A to epichlorohydrin is 1:2.5.

[0045] (2) Etherification: Slowly raise the temperature to 60°C, start timing, and keep warm for 4 hours in the range of 60-70°C.

[0046] (3) Alkali addition: cool down to 45-50°C, use a high-temperature tank, drop 8.39kg of liquid caustic soda with a concentration of 32%, control the rate of addition, and complete the addition within 1.5 hours. The molar ratio of o-diallyl bisphenol A to sodium hydroxide in liquid caustic soda is 1:2.3.

[0047] (4) Heat preservation: Slowly raise the temperature to 60°C, start timing, and keep the temperature within the range of 65-80°C for 5 hours.

[0048] (5) Recovery of epichlorohydrin: Distill at atmospheric pressure to 118°C first, the...

Embodiment 2

[0055] (1) Feeding: Add 10.0kg of o-diallyl bisphenol A, 150g of catalyst triethylbenzyl ammonium chloride, and 7.64kg of epichlorohydrin into a 50L enamel reaction kettle in sequence, after closing the feeding port, start stirring . The molar ratio of o-diallyl bisphenol A to epichlorohydrin is 1:2.8.

[0056] (2) Etherification: Slowly raise the temperature to 60°C, start timing, and keep warm for 5 hours in the range of 70-80°C.

[0057] (3) Alkali addition: the temperature is lowered to 45-50° C., and using the overhead tank, 9.12 kg of liquid caustic soda with a concentration of 32% is added dropwise, and the drop rate is controlled, and the dropwise addition is completed within 1.5 hours. The molar ratio of o-diallyl bisphenol A to sodium hydroxide in liquid caustic soda is 1:2.5.

[0058] (4) Heat preservation: Slowly raise the temperature to 60°C, start timing, and keep heat in the range of 65-70°C for 10 hours.

[0059] (5) Recovery of epichlorohydrin: Distill at a...

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Abstract

The invention discloses diallyl bisphenol A diglycidyl ether and a preparation process and application thereof. The diallyl bisphenol A diglycidyl ether is orange or red transparent liquid, the structural formula is as shown in the specification, the molecular formula is C27H32O4, and the molecular weight is 420. The diallyl bisphenol A diglycidyl ether has higher reaction activity, better operability, thermal stability and flexibility, and superior bonding property, mechanical property, solvent resistance and workability, thereby being extensively applied to the fields of paint, adhesive, composite material matrix and the like. The preparation process of the diallyl bisphenol A diglycidyl ether comprises the following processing steps of: charging, etherification, alkalization, heat preservation, recovery of epichlorohydrin, addition of solvent, water washing, recovery of solvent and discharging. The preparation process has the advantages of low facility request, simple process, easy operation, easily-controlled reaction, stable process, higher reaction yield, extensive application, remarkable economic benefit and the like.

Description

technical field [0001] The invention relates to the technical field of matrix resins for mechanical electronics and aerospace materials, in particular to o-diallyl bisphenol A diglycidyl ether and its preparation process and application. Background technique [0002] Advanced resin matrix composites have become one of the developing high-tech materials due to their light weight, high specific strength, high temperature resistance, strong material properties and designability. The application in the field of aviation and aerospace also shows its unique advantages and potential, and is considered to be an important symbol of the technological progress of aviation and aerospace materials. The matrix resin is a key factor that determines the performance of composite materials. [0003] It is reported that o-diallyl bisphenol A is the most widely used matrix resin at this stage. Ortho-diallyl bisphenol A is a yellow or brown transparent liquid, mainly used for the modification ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D303/27C07D301/28C09D163/10C09J163/10C08L63/10
CPCC07D301/28C07D303/27C08L63/10C09D163/10C09J163/10Y02P20/50
Inventor 姜升林孙占权王华静卢晓东阚昭东
Owner LAIZHOU LAIYU CHEM CO LTD
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