Flame-retardant and weather-resistant color masterbatch and production method thereof

Abstract

The invention relates to the technical field of production of plastics and particularly relates to a flame-retardant and weather-resistant color masterbatch and a production method thereof. The production method comprises the following steps: firstly metering an antioxidant, a light stabilizer and a carrier, and mixing for 3 minutes via a stirrer at the temperature of 50 DEGC; extruding and pelleting via a two-screw extruder, then proportioning the carrier and a flame retardant, pigment and a dispersant, mixing for 10 minutes via the stirrer at the temperature of 70 DEG C, milling till the pigment, the additives and the carrier are uniformly bonded together, pulling the screws and cleaning a machine table, additionally arranging a 150-mesh sieve net on a machine head, producing by selecting screws with length-to-diameter ratio phi of 40 to 1, setting the revolutions of the screws to be 180rp, successively pelleting via the two-screw extruder under the condition that the temperature of a first zone of the machine table is 60 DEG C, the temperature of a second zone of the machine table is 140 DEG C, the temperature of a third zone of the machine table is 140 DEG C, temperature of a fourth zone of the machine table is 135 DEG C, the temperature of a fifth zone of the machine table is 130 DEG C, the temperature of a sixth zone of the machine table is 130 DEG C, the temperature of a seventh zone of the machine table is 130 DEG C, the temperature of an eighth zone is 140 DEG C, and the temperature of the machine head is 150 DEG C, stirring and mixing uniformly, drying water and then packing. The flame-retardant and weather-resistant color masterbatch produced by the method is capable of greatly improving the weather resistance of furniture products, prolonging the service life and the flame retardancy and reducing the product cost, can be used for solving the bottleneck problem of the development of the home furnishing material, and has great significance to the environmental protection.

Description

Technical field: [0001] The invention relates to the technical field of plastic production, in particular to flame-retardant and weather-resistant color master batches and a production method thereof. Background technique: [0002] At present, plastic seats have the advantages of both wood and plastic's comprehensive performance and non-corrosion, non-fragmentation, non-mold, insect-proof, waterproof, green and environmental protection, and resource recycling. They are used to replace wooden seats in stadiums and public buildings. Automobiles and other fields are now gradually being favored both domestically and globally. However, flame retardant and weather resistant products are produced separately during processing and molding, and the surface of the product is easy to precipitate, whitish and crack after being placed for a period of time after flame retardant and weather resistant processing and molding, which has plagued the development of the furniture industry. Summary of...

AI Technical Summary

Problems solved by technology

However, the flame-retardant and weather-resistant products are produced separately during processing and molding, and the surface of the product is pron