A kind of phenolic resin black functional masterbatch and preparation method thereof

Abstract

A phenolic resin black functional masterbatch and a preparation method thereof, which is prepared from the following raw materials in parts by weight: 200 parts of phenol, 148-152 parts of formaldehyde, 2-10 parts of catalyst, and 4-10 parts of composite functional black dyeing agent. The preparation method is as follows: in a three-necked beaker equipped with a stirrer, a condenser and a thermometer, first add molten phenol, then add formaldehyde according to the weight ratio, start stirring and heating, so that the temperature of the reaction system is reacted at 100-104°C; When the liquid has reflux, add the catalyst according to the weight ratio to react for 1-2 hours; when the liquid is turbid, add the composite functional black dyeing agent according to the weight ratio, reflux for 1.5-2 hours, start dehydration under reduced pressure, and wait until the resin reaches a certain viscosity When the polycondensation synthesis reaction is over, the material is quickly discharged, and then processed by cooling and crushing processes. The masterbatch has good dyeability and fluidity, can be added in any amount, and can increase toughness and heat distortion temperature, so that the overall performance is significantly improved.

Description

technical field [0001] The invention relates to a phenolic resin black functional masterbatch and a preparation method thereof, in particular to a phenolic resin black functional masterbatch using nano-material modified pigment carbon black as a dyeing agent and a preparation method thereof. Background technique [0002] Phenolic resin is a polymer material that is polymerized with phenol and formaldehyde as raw materials under the condition of acidic catalyst (or basic catalyst). Its production process is stable and easy to operate, the price of raw materials is low, and it has many advantages such as good heat resistance, electrical insulation, corrosion resistance, low smoke generation, and product dimensional stability. Therefore, phenolic molding compound (commonly known as bakelite powder) with phenolic resin as the main raw material is widely used in many fields such as household appliances, household cooking utensils, aerospace, and automobile industry. Among the ma...

AI Technical Summary

Problems solved by technology

This traditional process has a certain effect on reducing the dyeing cost of phenolic molding compounds; but it has certain limitations on the dispersion and utilization of carbon black

The main disadvantages are as follows: (1) The dosage is relatively large; (2) The dispersion is uneven; (3) The appearance of the product is not beautiful; (4) The product is brittle; (5) It affects the curing speed of phenolic resin; (6) It is easy to pollute the production process

[0005] According to market research, there is currently no product that uses pigment carbon black to replace oil-soluble aniline black and carbon black in the production of phenolic molding compounds and achieves relatively satisfactory results.

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