Method of preparation of vinyl chloride resin plastisol

摘要

A vinyl chloride resin plastisol can be prepared without the shearing action mixing conventionally required for mixing a resin and plasticizer, merely by immersing in a conventional plasticizer, aggregates in the form of a dry power and having an average diameter of 80 to 700 mu m of vinyl chloride resin particles; using a spray drying apparatus to form aggregates having an average diameter in the range from 80 to 700 mu m or by adding an organic fluid which is barely soluble in water and does not dissolve or swell the vinyl chloride resin to the aqueous dispersion of the vinyl chloride particles, followed by drying the aggregates thus formed at a temperature of 70 DEG C.or below.