Phosphorus modified phenolic resin and preparation method thereof

A phenolic resin and phosphorus modification technology, which is applied in chemical instruments and methods, organic chemistry, compounds of Group 5/15 elements of the periodic table, etc., to achieve the effects of reducing environmental pollution, optimizing production conditions, and excellent film-forming stability

Inactive Publication Date: 2013-12-25
广西藤县通轩立信化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a new phosphorus-modified phenolic resin material and its preparation method, which solves the problem of completely relying on foreign imports of phosphorus-modified phenolic resins in the past

Method used

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  • Phosphorus modified phenolic resin and preparation method thereof
  • Phosphorus modified phenolic resin and preparation method thereof
  • Phosphorus modified phenolic resin and preparation method thereof

Examples

Experimental program
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Embodiment Construction

[0022] Table 1 and Table 2 are the reaction raw material components and reaction conditions in Examples 1 to 10, wherein the phenols described in Examples 1 to 10 are mixed phenols of nonylphenol and bisphenol A.

[0023] Prepare according to the following preparation steps in conjunction with the reaction raw material components and reaction conditions that table 1 and table 2 provide:

[0024] A. Take phenol, formaldehyde and water and add them into a four-necked flask and mix them evenly, then add a catalyst and mix them evenly, put the four-necked flask into an electric heating mantle and heat for condensation reaction to obtain a phenolic condensate, release it after cooling down, and separate it residual moisture;

[0025] B. Add the phenolic condensate obtained in step A back into the four-neck bottle, add monohydric alcohol and mix evenly, then add aluminum oxide and sulfuric acid as a catalyst, keep warm and reflux for dehydration reaction after heating up, and seal t...

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Abstract

The invention discloses a phosphorus modified phenolic resin material with a novel chemical structural formula and a preparation method thereof. The preparation method comprises the following steps: subjecting phenol and formaldehyde to condensation polymerization under the action of a catalyst so as to produce a phenolic aldehyde condensed intermediate; and then further subjecting the intermediate, monohydric alcohol and an organophosphorus heterocyclic compound to a reaction at designated temperature for designated time under designated catalysis conditions so as to prepare a phosphorus modified phenolic resin. The method provided by the invention overcomes the problem of total dependence on imported phosphorus modified phenolic resins in the prior art and improves heat resistance and bonding and peeling strength of conventional phosphorus modified phenolic resins; and the prepared phosphorus modified phenolic resin has physicochemical performance indexes like a good spatial size and excellent electrical performance and mechanical strength, so the phosphorus modified phenolic resin has better coating performance when applied in the field of electronic chemicals.

Description

technical field [0001] The invention belongs to the field of phosphorus-modified epoxy resins, and in particular relates to a phosphorus-modified phenolic resin and a preparation method thereof. Background technique [0002] At present, domestic phosphorus-modified resin systems are limited to phosphorus-modified epoxy resin systems, which are mainly used in the coating field of electronic sealing coatings. In recent years, with the continuous improvement of application requirements and application performance in the coating field, higher requirements have been put forward for the physical and chemical application performance parameters of phosphorus-modified epoxy resin curing agents. Oxygen resins can no longer meet the application requirements of this high-end field of electronic coating. In response to the special needs of the market, in the United States at the beginning of the 20th century, some international large chemical companies began to explore the use of organop...

Claims

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Application Information

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IPC IPC(8): C07F9/6574C08G59/62
Inventor 关炽昌刘涛
Owner 广西藤县通轩立信化学有限公司
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