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Method for preparing modified epoxy soybean oil for electronic grade product copper clad laminate

A technology of epoxidized soybean oil and copper clad board, which is applied in the synthesis of toughened modified resin and the field of flame retardancy, can solve the problems of poor flame retardancy, poor processability, poor heat resistance, etc., achieve low ion content, improve resistance Combustibility and flexibility improvement effect

Active Publication Date: 2013-06-12
SHAANXI SHENGYI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using epoxidized soybean oil to toughen the epoxy curing system, there are disadvantages such as poor flame retardancy and poor heat resistance
It has been reported that the synthesis and application of epoxy soybean oil oligomer toughened epoxy resin and epoxy soybean oil chain-extended internal toughened phenolic resin have the disadvantages of poor flame retardancy and unsatisfactory toughening effect
[0003] Copper-clad laminates and insulating materials with epoxy resin as the main resin have the disadvantages of high brittleness and poor processability
When epoxy soybean oil is directly used for toughening, it will have a great impact on the flame retardancy and heat resistance of the board; if an additive flame retardant is used to improve the flame retardancy of the system, the toughness of the cured product of the system will be reduced ; If the carboxyl-terminated nitrile rubber (CTBN) or its epoxy modified substance is used for toughening, the cost of the product is too high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The components and proportioning of preparing modified epoxy soybean oil are;

[0020] 1. Epoxidized soybean oil 60%

[0021] 2. Tetrabromobisphenol A 20%

[0022] 3. Dimer acid 19.96%

[0023] 4. Tetramethylammonium chloride catalyst 0.04%

[0024] Preparation Process:

[0025] 1) Reaction of epoxidized soybean oil with dimer acid or other fatty chain-containing reactive resin and catalyst at a temperature of 110° C. for 4 hours;

[0026] 2) Then add tetrabromobisphenol A, continue the reaction for 50 minutes under the above temperature conditions (ie 110°C to 150°C), test the epoxy equivalent of the reactant, and stop the reaction when the epoxy equivalent is 650. The epoxy soybean oil modified product with better flame retardancy, better toughness and lower cost can be obtained.

[0027] Application example of FR-4 copper clad laminate

[0028] 1. Brominated epoxy epoxy resin 35 parts

[0029] 2. 10 parts of Nobrak phenolic resin

[0030] 3. Aluminum hydroxid...

Embodiment 2

[0035] The component and the proportioning ratio of preparing modified epoxy soybean oil are:

[0036] 1. Epoxidized soybean oil 60%

[0037] 2. Tetrabromobisphenol A 35%

[0038] 3. Dimer acid 4.94%

[0039] 4. Tetramethylammonium chloride catalyst 0.06%

[0040] Preparation Process:

[0041] 1) Reaction of epoxidized soybean oil with dimer acid or other fatty chain-containing reactive resin and catalyst at a temperature of 150° C. for 2 hours;

[0042] 2) Then add tetrabromobisphenol A, continue the reaction for 70 minutes under the above temperature conditions (ie, 110°C to 150°C), test the epoxy equivalent of the reactant, and stop the reaction when the epoxy equivalent is 550. The epoxy soybean oil modified product with better flame retardancy, better toughness and lower cost can be obtained.

Embodiment 3

[0044] The component and the proportioning ratio of preparing modified epoxy soybean oil are:

[0045] 1. Epoxidized soybean oil 60%

[0046] 2. Tetrabromobisphenol A 30%

[0047] 3. Dimer acid 9.95%

[0048] 4. Tetramethylammonium chloride catalyst 0.05%

[0049] Preparation Process:

[0050] 1) Reaction of epoxidized soybean oil with dimer acid or other fatty chain-containing reactive resin and catalyst at a temperature of 130° C. for 3 hours;

[0051] 2) Then add tetrabromobisphenol A, continue to react under the above temperature conditions (ie 110°C to 150°C) for 60 minutes, test the epoxy equivalent of the reactant, and stop the reaction when the epoxy equivalent is 600. The epoxy soybean oil modified product with better flame retardancy, better toughness and lower cost can be obtained.

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PUM

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Abstract

The invention relates to a method for preparing modified epoxy soybean oil for an electronic grade product, namely a copper clad laminate. The modified epoxy soybean oil is prepared from the following components in percentage by weight: 60 percent of epoxy soybean oil, 20 to 35 percent of tetrabromobisphemol A, 0.04 to 0.06 percent of catalyst tetramethyl ammonium chloride and the balance of dimeric acid or other aliphatic-chain-containing reactive resin. The method for preparing the modified epoxy soybean oil comprises the following steps of: performing combination reaction of the epoxy soybean oil and the tetrabromobisphemol A to bond a brominated flame retardant to the molecular chains of the epoxy soybean oil to improve the flame retardance of the resin; and at the same time, performing graft and chain extension on the dimeric acid or other aliphatic-chain-containing reactive resin and the epoxy soybean oil to further improve the flexibility of the epoxy soybean oil so as to obtain an epoxy soybean oil modified substance with high flame retardance, high enhanced toughness and low cost. Compared with the epoxy soybean oil or other phenolic resin with the modified epoxy soybean oil, the epoxy soybean oil modified substance has the advantages of high flame retardance, high enhanced toughness, low cost, low ion content, high hydrophobicity, high compatibility with the epoxy resin and particular suitability for improving the toughness of the electronic grade product, namely the copper clad laminate and insulating materials, and reducing cost.

Description

technical field [0001] The invention relates to a preparation method of modified epoxy soybean oil, which is used for the synthesis of flame-retardant and toughened modified resin in the fields of copper-clad laminates and insulating materials. Background technique [0002] Epoxidized soybean oil is non-toxic and odorless. It is a plasticizer and stabilizer widely used in polyvinyl chloride, and it is also a low-cost toughening agent. When using epoxidized soybean oil to toughen the epoxy curing system, there are disadvantages such as poor flame retardancy and poor heat resistance. It has been reported that the synthesis and application of epoxy soybean oil oligomer toughened epoxy resin and epoxy soybean oil chain-extended internal toughened phenolic resin have the disadvantages of poor flame retardancy and unsatisfactory toughening effect. [0003] Copper-clad laminates and insulating materials with epoxy resin as the main resin have the disadvantages of high brittleness ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/1515C08L63/00C08L61/06C08K3/22
Inventor 曾耀德
Owner SHAANXI SHENGYI TECH