Flame-retardant high-temperature-resistant boron phenolic resin composition and preparation method thereof

Abstract

The invention discloses a flame-retardant high-temperature-resistant boron phenolic resin composition and a preparation method thereof. The flame-retardant high-temperature-resistant boron phenolic resin composition consists of the following components in percentage by weight: 58.5-79.4% of phenolic resin, 7.5-20.0% of a flame retardant, 0.2-0.6% of a coupling agent, 5.0-15.0% of inorganic packing and 5.0-10.0% of a curing agent. The preparation method of the composition comprises the following steps of: dissolving the phenolic resin in a proper amount of an absolute ethyl alcohol solution at 40-50 DEG C, after the phenolic resin is completely dissolved, keeping the temperature be at 60 DEG C, sequentially and slowly the flame retardant and the inorganic packing under the condition of stirring, stirring for 1.5 hours, uniformly mixing, stirring the prepared phenolic resin solution in a magnetic stirrer for 1 hour at the water bath temperature of 80 DEG C, and removing the solvent so as to obtain phenolic resin slurry; and adding a certain mass of the curing agent hexamethylenetetramine, taking out a rotor, putting into a drying oven of 60 DEG C, and curing for 12 hours, thereby obtaining the flame-retardant high-temperature-resistant boron phenolic resin composition. The flame-retardant high-temperature-resistant boron phenolic resin composition is excellent in comprehensive property, particularly the high temperature resistance, and meanwhile can be widely popularized and used as the materials are free of pollution and the environment friendliness requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of high-temperature-resistant products. Specifically, the invention relates to a flame-retardant and high-temperature-resistant phenolic resin, which belongs to the field of modified polymer materials. Background technique [0002] As one of the three major synthetic thermosetting resins, phenolic resin is the earliest industrialized synthetic resin in the world. It has experienced a history of more than 100 years. Since the first industrial production of phenolic resin in 1910, its raw materials are easy to obtain, the price is low, and the production process and The equipment is simple, and the product has excellent mechanical properties, heat resistance, cold resistance, electrical insulation, dimensional stability, molding processability, flame retardancy and low smoke properties, and has become an indispensable material in the industrial sector. A resin with a long history and excellent performance. Wi...

AI Technical Summary

Problems solved by technology

The weak link in the structure of phenolic resin is that the phenolic hydroxyl group and methylene are easily oxidized, and the heat resistance is affected

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