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A kind of preparation method of special brominated epoxy resin for copper clad laminate and the product thereof

A technology for brominated epoxy resin and liquid epoxy resin, which is applied in the field of preparation methods and the products obtained therefrom, can solve the problems of unstable process and general indicators, and achieves good process stability, stable product quality and feasibility. strong effect

Active Publication Date: 2015-09-02
建滔(广州)电子材料制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The brominated epoxy resin synthesized by this process has epoxy value 2.2-2.4mmol / g; viscosity 1-2Pa s (25℃); solid content 79-81%; organic chlorine content ≤ 0.03%; bromine content 19-21 %; the same product index of the process is general, and the process is still in the small test stage, the process is unstable, and there is no data to prove that it can be used for industrial production

Method used

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  • A kind of preparation method of special brominated epoxy resin for copper clad laminate and the product thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1, the preparation method of brominated epoxy resin special for copper clad laminates of the present invention is as follows:

[0028]Put bisphenol A type liquid epoxy resin into the reaction kettle, under the protection of nitrogen, heat to 78 ° C, start stirring, put tetrabromobisphenol A, bisphenol A type liquid epoxy resin and tetrabromobisphenol A by weight Feed at a ratio of 1:1; heat up to 88°C within 30 minutes after the feed is complete, and add 0.08% tetrabutylammonium bromide, methyltriphenylammonium bromide and polyethylene glycol ( Weight ratio 0.2:1:0.07) mixture; heat and control the temperature at 168 ° C, react for 1 hour to obtain an intermediate resin; add 80% of the amount of tetrabromobisphenol A to the reactor again Bisphenol A liquid epoxy resin , control the reaction temperature at 148°C, react under stirring for 13min to obtain brominated epoxy resin; stop nitrogen flow, add tetrabromobisphenol A addition of 73% acetone to dissolve t...

Embodiment 2

[0030] Embodiment 2, the preparation method of brominated epoxy resin special for copper clad laminates of the present invention is as follows:

[0031] Put bisphenol A type liquid epoxy resin into the reaction kettle, under the protection of nitrogen, heat to 82 ℃, start stirring, put into tetrabromobisphenol A, bisphenol A type liquid epoxy resin and tetrabromobisphenol A by weight Feed at a ratio of 1.4:1; heat up to 92°C within 60 minutes after the feed, add 0.08% tetrabutylammonium bromide, methyltriphenylammonium bromide and polyethylene glycol ( weight ratio 0.4:1:0.09) mixture; heat and control the temperature at 172°C, react for 2 hours to obtain an intermediate resin; add 82% bisphenol A liquid epoxy resin in the amount of tetrabromobisphenol A to the reaction kettle , control the reaction temperature at 152°C, react under stirring for 17min to obtain brominated epoxy resin; stop nitrogen flow, add tetrabromobisphenol A addition of 76% acetone to dissolve the prepa...

Embodiment 3

[0033] Embodiment 3, the preparation method of brominated epoxy resin special for copper clad laminates of the present invention is as follows:

[0034] Put bisphenol A liquid epoxy resin into the reaction kettle, under the protection of nitrogen, heat to 80°C, start stirring, put tetrabromobisphenol A, bisphenol A liquid epoxy resin and tetrabromobisphenol A by weight Feed at a ratio of 1.2:1; heat up to 90°C within 40 minutes after the feed, add 0.08% tetrabutylammonium bromide, methyltriphenylammonium bromide and polyethylene glycol ( Weight ratio 0.3:1:0.08) mixture; heat and control the temperature at 170°C, react for 2 hours to obtain an intermediate resin; add 81% bisphenol A liquid epoxy resin in the amount of tetrabromobisphenol A to the reaction kettle , control the reaction temperature at 150°C, react under stirring for 15 minutes to obtain brominated epoxy resin; stop nitrogen flow, add tetrabromobisphenol A addition of 73% acetone to dissolve the prepared bromin...

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Abstract

The invention discloses a preparation method of brominated epoxy resin special for a copper-clad plate and a product prepared by using the preparation method. The preparation method comprises the following steps of by adopting bisphenol A liquid epoxy resin and tetrabromobisphenol A as raw materials, adding a catalyst for reaction to obtain intermediate resin; adding the bisphenol A liquid epoxy resin again for polymerization and chain extension to obtain the target brominated epoxy resin. The brominated epoxy resin prepared by using the preparation method provided by the invention has the advantages of high purity, low product chrominance and stable product quality.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a preparation method of a special brominated epoxy resin for copper-clad laminates and a prepared product thereof. Background technique [0002] Brominated epoxy resin is a new type of epoxy resin developed in recent years. It not only has excellent electrical insulation and adhesion of general epoxy resin, but also has excellent self-flame retardancy, so it is widely used in copper clad laminates. , Insulation potting materials and other industries. [0003] The traditional synthesis process of brominated epoxy resin can be summed up as two production processes and five manufacturing methods, that is, one-step method: water washing method, solvent extraction method, solvent method; two-step method: bulk polymerization method and catalytic polymerization method. [0004] One-step method: It is prepared by polycondensation reaction with a certain proportion ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/02C08G59/68C08L63/00
Inventor 张广军
Owner 建滔(广州)电子材料制造有限公司
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