High weatherability PVC (Polyvinyl Chloride) masterbatch and preparation method thereof

Abstract

The invention discloses a high weatherability PVC (Polyvinyl Chloride) color masterbatch. The high weatherability PVC color masterbatch is prepared from the following raw materials: 40 to 60 parts ofpolyvinyl chloride resin, 20 to 30 parts of inorganic pigment, 10 to 15 parts of fibers, 2 to 3 parts of a compound dispersant, 2 to 3 parts of an ultraviolet light absorber, 2 to 3 parts of an antioxidant and 1 to 2 parts of a fortifier. The PVC color masterbatch provided by the invention has the advantages of reasonable formula, high weatherability, excellent wear resistance, easiness in dispersion, low cost and simple preparation process. When being applied to the coloring of PVC products, the PVC color masterbatch has the advantages of lower dosage, higher colorant concentration, high utilization rate, high antibacterial property, good weatherability, uniform coloring, no discoloration and no effect on mechanical properties of the PVC products; the service life of the PVC products is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a high-weather-resistant PVC color masterbatch and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC for short) is a non-toxic, odorless white powder. Domestic production and consumption of PVC rank first among the five general-purpose resins. PVC products have the advantages of chemical resistance, flame self-extinguishing, wear resistance, noise reduction and shock absorption, high strength, good electrical insulation, low price, wide source of materials, and good air tightness. They are used in industry, construction, Agriculture, electric power, public utilities and other fields have broad application space. However, PVC has poor thermal stability, and is prone to aging, discoloration, cracking, brittleness or pulverization under the action of light, heat and oxygen, and loses its mechanical properties. [0003] At pr...

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Problems solved by technology

[0004] However, domestic masterbatch products have a single structure and incomplete varieties, and general-purpose products account for a large proportion. When plastics need to be colored, single-color masterbatches are used for coloring. When antistatic performance is required, antistatic masterbatches are added. When flame retardant performance is required Add flame retardant masterbatch

The method of adding a single masterbatch makes it necessary to add a variety of color masterbatches with different functions when the comprehensive performance of the carrier resin is high, thus consuming a large amount of carrier resin and resulting in the consumption of antioxidants during processing Due to the disadvantages of high volume, many components in downstream molding processing, and complicated processes, the future masterbatch will continue to develop in the direction of multi-functionality, high color content and high technology content.

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