Apparatus for preparing glass fiber reinforcing nylon 66/nylon 6 composite material

Abstract

The invention provides an apparatus for preparing a glass fiber reinforcing nylon 66 / nylon 6 composite material. The apparatus comprises a twin-screw extruder body, wherein the twin-screw extruder body is successively communicated with a vacuum tank and a vacuum pump, and the apparatus also comprises a liquid collection pond which is bidirectionally communicated with the vacuum pump, a water-gas separator and a cooling structure are arranged in the liquid collection pond, and the liquid collection pond is communicated with a waste gas pipe. The water-gas separation is performed for the high-temperature sealing liquid discharged from the vacuum pump by virtue of the liquid collection pond, the waste is discharged, the liquid is cooled by virtue of a heat exchanging pipe network, then the liquid is filtered by virtue of a filter screen and sent back to the vacuum pump to be recycled, the vacuum degree produced by the sealing of the vacuum pump cannot be changed, the requirement of the glass fiber reinforcing nylon 66 / nylon 6 composite material can be met, by recycling the sealing liquid, the emission of a great amount of sewage can be reduced, and the production cost and sewage treatment cost can be greatly reduced.

Description

technical field [0001] The invention relates to the field of composite material processing equipment, in particular to a device for preparing glass fiber reinforced nylon 66 / nylon 6 composite materials. Background technique [0002] In the process of preparing glass fiber reinforced nylon 66 / nylon 6 composite materials, when the twin-screw extruder uses plastic raw materials for granulation, since the plastic raw materials contain water and volatile organic compounds, if the water and volatile organic compounds are not discharged during granulation Volatile organic matter will affect the appearance and performance of plastic products. Twin-screw extruders generally use external force to forcibly separate moisture and volatile organic matter through vacuuming to improve product quality. Vacuum pumps are often used for vacuuming. During the vacuuming process, the high-temperature gas from the twin-screw extruder is mixed with the sealing liquid and then discharged out of the v...

AI Technical Summary

Problems solved by technology

PA6 is an engineering plastic with excellent comprehensive properties, with high strength and rigidity, good corrosion resistance, oil resistance, low water absorption, self-lubrication, creep resistance and outstanding fatigue resistance, but PA6 is also It has the disadvantages of low impact strength, high fluidity and large product shrinkage at low temperature and dry state

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