Strand spinneret discharge process for polymerization reaction of 11-amino undecanoic acid monomer

Abstract

The invention belongs to the castor oil-producing nylon-11 engineering plastic manufacture technical field, in particular to a method for injecting belt discharging after 11-amino undecanoic acid monomer polymerization reaction. The method solves the problems that the prior poly-undecanoyl amine resin adopts the kettle type polymerization, a direct injecting belt head discharging device has low discharging speed, the discharging is not even, and is more viscous and difficult with the discharging time prolonged, the quality of the whole product is not balanced, and the maneuverability is bad, etc. In a polymerization kettle, the 11-amino undecanoic acid monomer is polymerized to generate the poly-undecanoyl amine resin at a temperature of between 230 and 260 DEG C, an injecting belt wheel pump is adopted to pressurize and the discharging injecting belt head produces the product; in the technique, the preserved temperature of the injecting belt wheel pump is between 240 and 260 DEG C, the rotating speed of the wheel pump is between 15 and 30 RPM. The method has the advantages that the discharging speed is high, the discharging is even, the problem of the difficult discharging in the later period is solved, the quality is balanced, the maneuverability is strong, the purchase and installation as well as use are easy, and the investment is saved.

Description

11-aminoundecanoic acid monomer polymerization reaction injection belt discharge method technical field The invention belongs to the technical field of producing nylon-11 engineering plastics from castor oil, and specifically relates to a method for polymerizing 11-aminoundecanoic acid monomer for injection and discharge in the process flow. Background technique Polyundecamide plant engineering plastics (H[NH(CH2)10CO]nOH) is an important high-tech new material, an important variety of polyamide engineering plastics, and an irreplaceable resin. It uses castor oil as raw material. Compared with other products, it has low density, high mechanical strength, stable performance, acid and alkali resistance, and excellent electrical insulation performance. Due to these excellent and unique properties, it is widely used in many fields such as automobile industry, electronic appliances, medical equipment, ordnance and civil industry. The existing castor oil route synthesis nylon-1...

AI Technical Summary

Problems solved by technology

In order to solve the problem that the existing polyundecamide resin adopts kettle-type polymerization, the discharge speed of the device directly injecting the head and discharging the material is slow and uneven. As the discharge time prolongs, the viscosity increases, and the discharge increases Difficulties, resulting in unbalanced product quality, poor operability and other problems, and provide a 11-amino undecanoic acid monomer polymerization injection belt discharge method

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