Preparation method of damp-proof PVC injection molding material

Abstract

The invention belongs to the technical field of preparation of cable injection molding materials, and discloses a preparation method of a damp-proof PVC injection molding material. The preparation method comprises the steps of white mica modification, dosing, mixing, granulating and the like, wherein the white mica modification comprises the following steps: mixing the white mica with absolute ethyl alcohol which being 0.3-0.6 time of the white mica in weight and PVP which being 0.1-0.2 time of the white mica in weight, adding into a high-speed shearing machine, and treating for 0.5-1.5 hours;calcining for 0.5-1 hour at 550-600 DEG C, and cooling to obtain peeling white mica; mixing the peeling white mica with a titanate coupling agent which being 0.5-1.0 time of the peeling white mica inweight, and performing ultrasonic treatment for 1-2 hours to obtain modified white mica. According to the preparation method disclosed by the invention, the prepared damp-proof PVC injection moldingmaterial has the characteristics of moisture and damp proofing, smooth and delicate surface, relatively high softness, etc.

Description

technical field [0001] The invention relates to the technical field of cable injection molding, in particular to a method for preparing moisture-proof PVC injection molding. Background technique [0002] PVC cable material is easy to get damp. The surface of the wire made of damp cable material is dull and rough. There are many honeycomb pores on the surface and cross-section of the wire, which greatly reduces the mechanical properties and insulation properties of the wire. Before using the damp cable material, it needs to be dried, which adds a process, which not only affects the production speed, but also wastes manpower and energy. Conventional PVC insulating materials are usually filled with ordinary calcium carbonate. The surface of insulating cable particles made of ordinary calcium carbonate looks uneven and has pinhole-like gaps under a microscope. These gaps are very easy to absorb water vapor, which leads to moisture. Contents of the invention [0003] In order ...

AI Technical Summary

Problems solved by technology

[0002] PVC cable material is easy to get damp. The surface of the wire made of damp cable material is dull, rough and dull. There are many honeycomb pores on the surface and cross-section of the wire, which greatly reduces the mechanical properties and insulation properties of the wire.

Before using the damp cable material, it needs to be dried, which adds a process, which not only affects the production speed, but also wastes manpower and energy

Conventional PVC insulating materials are usually filled with ordinary calcium carbonate. The surface of insulating cable particles made of ordinary calcium carbonate looks uneven and has pinhole-like gaps under a microscope. These gaps are very easy to absorb water vapor, which leads to moisture.