▎ 摘　　要

NOVELTY - Antibacterial type microporous color master batch is obtained by using polypropylene as the base material and expanded PTFE as the microporous additive material, using carbon black or titanium dioxide as colorant, and using bamboo charcoal fiber modified porous light calcium carbonate as filler, and supplementing heat stabilizer, dispersant and antioxidant. USE - As antibacterial type microporous color master batch. ADVANTAGE - The antibacterial type microporous color master batch solves the problem of single function of the existing color masterbatch, utilizes the expanded microporous structure of expanded PTFE, and cooperates with the porous-microporous structure of the filler itself to form a microporous structure with variable structure, and achieves excellent antibacterial effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the antibacterial microporous color masterbatch comprising (a) weighing the raw materials according to the formula and preparing for use, (b) placing the polypropylene and the expanded PTFE into a pulverizer for mechanical abrasives to obtain a mixed resin fine powder, and adding a colorant, a filler, a heat stabilizer, a dispersant and an antioxidant for high-speed mixing to obtain mixed dispersants, (c) adding the mixed dispersing material to the internal mixer and mixing to agglomeration, and the mixing temperature is 120-150 degrees C, (d) placing the banbury block into the air-cooled cutting machine to cut the material, and air-cooling to room temperature to obtain fine particles, and (e) drying the fine particles and drum homogenizing to obtain an antibacterial microporous color masterbatch.