Phosphorus-containing/nitrogen-containing phenolic resin and preparation method thereof

A technology of phenolic resin and formaldehyde, applied in the direction of aldehyde/ketone condensation polymer adhesives, adhesive types, adhesives, etc., can solve the problems of increasing production costs and difficulties in industrialization implementation

Active Publication Date: 2013-08-21
江苏文昌电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that a large amount of phenol needs to be processed in the preparation process of melamine phenolic resin, which not only greatly increases the production cost, but also has great difficulties in industrial implementation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation process of the phosphorus- and nitrogen-containing phenolic resin in this embodiment is as follows: first, 100 grams of preheated molten phenol and 60 grams of aniline are sucked into the reaction kettle in a vacuum, and then 1.5 grams of triethylamine are added, and the temperature is maintained at 50-60°C and stirred evenly. Then 150 g of 37% formaldehyde solution was added, the temperature was raised to 65-70°C while stirring, the temperature was kept for 1-2 hours, 40 g of hydroxymethyl phenyl hypophosphorous acid was added, and then the temperature was raised to 100°C, and the reaction was carried out for about 4 hours. Then, it is dehydrated under reduced pressure at 90-100°C until the softening point of the resin reaches 70-80°C to obtain 220.5 grams of brown-red solid phosphorus-containing nitrogen-containing phenolic resin, which contains 3.2% phosphorus and 4.0% nitrogen.

[0030] Take 30 parts of epoxy resin, 30 parts of o-cresol epoxy resin, 40 p...

Embodiment 2

[0032] The preparation of the phosphorus- and nitrogen-containing phenolic resin in this example is as follows: first, 100 grams of preheated molten p-tert-butylphenol is neutralized and 60 grams of long-chain alkyl aniline is sucked into the reaction kettle by vacuum, and then 3 grams of ammonia are added to maintain the temperature. After stirring at 50-60°C, add 200g of 37% formaldehyde solution. While stirring, heat up to 65-70°C and keep it for 1 hour. Add 40g of DOPO-HQ, then heat up to 100°C and keep it for 1 to 3 hours. Dehydration under reduced pressure until the softening point of the resin reaches 70-80°C to obtain 220.0 grams of brown-red solid phosphorus-containing nitrogen-containing phenolic resin, which contains 3.2% phosphorus and 3.6% nitrogen.

[0033] Take 32 parts of epoxy resin, 34 parts of o-cresol novolac epoxy resin, 34 parts of phosphorus and nitrogen phenolic resin, 30 parts of aluminum hydroxide, appropriate amount of 2-methyl 4-ethylimidazole, and cure...

Embodiment 3

[0035] The phosphorus- and nitrogen-containing phenolic resin of this embodiment is prepared as follows: first, 60 grams of preheated molten phenol, 40 grams of preheated molten p-cresol and 60 grams of p-toluidine are sucked into the reaction kettle by vacuum, and then 1.5 grams of hydrogen are added. Sodium oxide, maintain the temperature at 50-60℃ and stir evenly, add 180 g of 37% formaldehyde solution, stir and heat up to 65~70℃, keep for 1 hour, add 40 g of DOPOM, then heat up to 100℃, keep for 2~3 hour. Dehydration under reduced pressure until the softening point of the resin reaches 70-80°C to obtain 221.0 grams of a brown-red solid phosphorus-containing nitrogen-containing phenolic resin with a phosphorus content of 3.2% and a nitrogen content of 4.0%.

[0036] Take 32 parts of epoxy resin, 34 parts of o-cresol novolac epoxy resin, 34 parts of phosphorus-containing nitrogen-containing phenolic resin, 30 parts of aluminum hydroxide, appropriate amount of 2-methyl 4-ethyl i...

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PUM

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Abstract

The invention relates to phosphorus-containing/nitrogen-containing phenolic resin and a preparation method thereof, and belongs to the technical field of flame retardant curing agents and package materials. By a method for easily realizing industrial production by fully adjusting the ratios of phenol or alkylphenol/phenylamine or alkylaniline/a phosphorus-containing compound or a nitrogen-containing compound, phenolic resin with different types of phosphorus-containing/nitrogen-containing content is obtained; and therefore, a composition consisting of the prepared phosphorus-containing/nitrogen-containing phenolic resin, phosphorus-containing epoxy resin and o-cresol formaldehyde epoxy resin has wider application range; and the phosphorus-containing/nitrogen-containing phenolic resin/epoxy resin composition can be applied to laminated material adhesives and electronic package materials (EMC).

Description

Technical field [0001] The invention relates to a phenolic resin and a preparation method thereof, in particular to a phosphorus- and nitrogen-containing phenolic resin and a preparation method thereof, and belongs to the technical field of flame-retardant curing agents and packaging materials. Background technique [0002] Resins formed by polycondensation of phenols and aldehydes are called phenolic resins. Because of their rich sources of raw materials, low prices, and simple production processes, their products have excellent mechanical properties, heat resistance, electrical insulation, and dimensional stability. Flame retardancy and low smoke, so it is widely used in the electrical and electronic fields. [0003] Nitrogen-containing phenolic resins are generally synthesized from melamine, phenol and formaldehyde in a two-step method under the catalyzed conditions of alkaline catalysts, that is, using phenol or para- and ortho-substituted alkylphenols as monomers and melamine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/28C09J161/14
Inventor 刘胜平苏文国
Owner 江苏文昌电子科技有限公司
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