Preparation method and application of flame-retardant PVC leather compound for traffic interior decoration

Abstract

The invention discloses a flame-retardant PVC leather compound for traffic interior decoration, a preparation method and application thereof. The leather compound comprises a PVC leather layer, a flame-retardant functional layer and an elastic layer. The flame-retardant functional layer consists of 100 parts of PVC paste resin, 50-120 parts of flame-retardant plasticizer, 5-20 parts of phosphorus-containing liquid flame retardant, powder 5-20 parts of bulk flame retardant, 3-10 parts of flame retardant synergist, 1-10 parts of zirconium phosphate, 1-5 parts of antioxidant, 1-5 parts of heat stabilizer, 1-10 parts of filler, 0 parts of color paste ‑5 parts, foaming agent 1‑10 parts, the elastic layer is polyurethane sponge, the flame retardant functional layer is combined with the PVC leather layer to form a flame retardant PVC leather layer, and then through flame compounding, flame retardant glue compounding or flame retardant heat Melt glue is compounded to realize the tight combination with the elastic layer. The flame retardant PVC leather compound has the characteristics of excellent flame retardant performance, low smoke and less toxicity, low VOC, low atomization value, no peculiar smell, soft hand feeling, high peel strength, good resilience, etc., and can be widely used in cars and buses Seats, safety seats, door panels, armrests, etc. for trucks, high-speed trains, high-speed trains, urban railways, and low-speed trains.

Description

technical field [0001] The invention relates to the field of flame retardant materials, in particular to a preparation method and application of a flame retardant PVC leather compound for traffic interiors. Background technique [0002] In recent years, motor vehicle combustion accidents have occurred frequently. Relevant state ministries and commissions have issued a document pointing out that the combustion test standard for motor vehicle interior materials is one of the important factors to ensure the safety of motor vehicles. All countries have clear regulations on the flammability of interior fabrics for vehicles. my country has proposed new standards for the flame retardant performance requirements of interior fabrics for school buses, passenger cars and trains. min is reduced to ≤70mm / min. The flame retardant requirements of passenger car interior materials only refer to the national mandatory GB8410-2006 to control the horizontal burning speed, which is not enough to...