A kind of preparation method of phenolic resin

Abstract

The invention provides a phenolic resin preparation method. A liquid hot pressing tank, an insulating strong wind pipe and a particle forming tank are included. The surface of the liquid hot pressingtank is fixedly connected to a base, the surface of the base is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a rotating shaft through a coupling, one end of therotating shaft penetrates and stretches into the liquid hot pressing tank, the surface of the rotating shaft is fixedly connected to a stirring rod, the insulating strong wind pipe is located above the liquid hot pressing tank. The phenolic resin preparation method relates to the chemical field. The phenolic resin preparation device granulates the liquid phenolic resin directly and cures the same,so that phenolic resin is prevented from being chiseled and cut, and follow-up grinding and processing are facilitated. Therefore, the phenolic resin preparation method solves the problem that commonphenolic resin preparation equipment processing a material into small granules needs relatively more labor forces and has certain potential safety hazard to cut and grind, the cut material is still large in bulky shape, and the grinding residue loss is relatively high.

Description

Technical field[0001]The present invention relates to the technical field of chemical engineering, in particular to a preparation method of phenolic resin.Background technique[0002]Phenolic resin is a colorless or yellowish-brown transparent substance, resistant to weak acids and weak bases. It decomposes when encountering strong acids and corrodes when encountering strong alkalis. It is insoluble in water and soluble in organic solvents such as acetone and alcohol. Phenolic resins are made of phenol. It is obtained by polycondensation of aldehyde or its derivatives. The phenolic resins sold on the market are often added with coloring agents to appear red, yellow, black, green, brown, blue and other colors. They are in the form of granules and powder. The thermosetting phenolic resin is solid after heating. Liquid separation. Due to the large production volume and concentrated heating of the current thermosetting phenolic resin during the processing process, the thermosetting phenol...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a method for preparing phenolic resin, which solves the problem that when the general phenolic resin is prepared, the material is processed into smaller particles, the work intensity is relatively high, more labor is required, and cutting and Grinding has certain potential safety hazards. After cutting, the material is still in a large block shape, and the loss of grinding slag is high.

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