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Naphthol novolac epoxy resin and preparation method thereof

A technology of naphthol novolac epoxy resin and naphthol novolac resin, which is applied in the field of naphthol novolac epoxy resin and its preparation, and can solve problems such as no substantive progress

Inactive Publication Date: 2009-06-10
宜兴市普利泰电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, because naphthol novolac epoxy resin has only been reported in a few academic journals, there is no substantial progress

Method used

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  • Naphthol novolac epoxy resin and preparation method thereof
  • Naphthol novolac epoxy resin and preparation method thereof
  • Naphthol novolac epoxy resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation method of naphthol novolac epoxy resin:

[0041] 1. Pump 144Kg of methylnaphthol into the reaction kettle, add 4Kg of sulfuric acid as a phenolic catalyst, and then heat up to 75°C, add 65Kg of formaldehyde dropwise into the reaction kettle to carry out polycondensation reaction, control the temperature at 80°C, and keep it warm for 8 hours after titration. The temperature is controlled at 105°C;

[0042] 2. Put the above-mentioned polycondensation reactants into waste water after standing for 1 hour, wash with clean water three times, and obtain naphthol phenolic resin after dehydration;

[0043] 3. Add 0.2Kg of epoxy etherification catalyst tetramethylammonium chloride and 600Kg of epoxy chlorohydrin in the above-mentioned naphthol phenolic resin in proportion by mass, and carry out epoxy etherification reaction under the action of epoxy etherification catalyst. The time is controlled at 2 hours, the temperature is at 70°C, and the temperature is rais...

Embodiment 2

[0048] The preparation method of naphthol novolac epoxy resin:

[0049] 1. Pump 144Kg of methylnaphthol into the reaction kettle, add 4.5Kg of phenolic catalyst sulfuric acid, and then raise the temperature to 78°C, add 68Kg of formaldehyde dropwise into the reaction kettle to carry out polycondensation reaction, control the temperature at 85°C, and keep it warm for 10 hours after titration , the temperature is controlled at 108°C;

[0050] 2. Put the above-mentioned polycondensation reactants into waste water after standing for 1 hour, wash with clean water three times, and obtain naphthol phenolic resin after dehydration;

[0051] 3. Add 0.2Kg of epoxy etherification catalyst tetramethylammonium chloride and 650Kg of epoxy chlorohydrin in the above-mentioned naphthol phenolic resin in proportion by mass, and carry out epoxy etherification reaction under the action of epoxy etherification catalyst. The time is controlled at 2.5 hours, the temperature is at 75°C, and the temp...

Embodiment 3

[0056] The preparation method of naphthol novolac epoxy resin:

[0057]1. Pump 144Kg of methylnaphthol into the reaction kettle, add 5Kg of phenolic catalyst sulfuric acid, and then raise the temperature to 80°C, add 70Kg of formaldehyde dropwise into the reaction kettle to carry out polycondensation reaction, control the temperature at 90°C, and keep it warm for 12 hours after titration. The temperature is controlled at 110°C;

[0058] 2. Put the above-mentioned polycondensation reactants into waste water after standing for 1 hour, wash with clean water three times, and obtain naphthol phenolic resin after dehydration;

[0059] 3. Add 0.2Kg of epoxy etherification catalyst tetramethylammonium chloride and 700Kg of epoxy chlorohydrin in the above-mentioned naphthol phenolic resin in proportion by mass, and carry out epoxy etherification reaction under the action of epoxy etherification catalyst. The time is controlled at 3 hours, the temperature is at 80°C, and the temperatur...

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Abstract

The invention relates to an epoxy resin with relatively lower linear thermal expansion coefficient and higher resistance to heat and humidity, which is applied to epoxy resin sealing material, laminated sheets and powder coatings, in particular to an epoxy resin of naphthol and naphthoic aldehyde and a production method thereof. An epoxy resin of naphthol and naphthoic aldehyde with the structure above is provided, in which n is equal to 1 to 6.

Description

technical field [0001] The invention relates to an epoxy resin with high moisture resistance and relatively low coefficient of linear expansion for epoxy resin packaging materials, laminates and powder coatings, especially a naphthol novolac used for epoxy resin molding compounds Epoxy resins and methods for their preparation. Background technique [0002] In the electronics industry, packaging is an important process for electronic components. Since 1953, Shell Development Co. applied for the first epoxy molding compound patent (see: Zhou Yuming, megabit level, epoxy molding compound for DRM packaging, new chemical materials, (4) (1993, 1~18 and 1947), Devoe Raynolelf Company of the United States, after the first development of epoxy resin production technology with industrial value (Devoe and raynolelf CO., Ine us patent, 2, 1493, 1486(1950)) Epoxy resins are gradually used as packaging materials such as electronic components, laminates, and adhesives. At present, epoxy r...

Claims

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Application Information

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IPC IPC(8): C07D303/23C08G59/32
Inventor 董耿蛟顾志伟苏江庄建平
Owner 宜兴市普利泰电子材料有限公司
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