▎ 摘　　要

NOVELTY - Flame retardant tarpaulin comprises polyester filament oxford cloth and a flame retardant layer attached to the outer layer of polyester filament Oxford cloth. The flame retardant layer is composed of 70-90 pts. wt. polyurethane finishing agent, 44-66 pts. wt. solvent, 25-45 pts. wt. double-layer microcapsule phase change material, 10-22 pts. wt. ammonium polyphosphate, 3-7 pts. wt. dispersant. The double-layer microcapsule phase change material is composed of a polyethylene glycol core material, a graphene oxide sub-outer layer and a polyurea outer layer in sequence from the inside to the outside. USE - Flame retardant tarpaulin for use in textile manufacturing. ADVANTAGE - The flame retardant tarpaulin can form a solid flame retardant layer on the polyester tarpaulin, and the flame retardant layer can form a dense thermal insulation layer when heated, which can effectively improve the flame retardant performance of the polyester tarpaulin, and is efficient and can achieve better flame retardant effect with less coating amount, and the flame retardant has almost no effect on the strength of the polyester tarpaulin. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of flame-retardant tarpaulin, which involves: (1) subjecting polyester filament oxford cloth to desizing refining, after pre-forming, alkali weight reduction, dyeing and finishing, and reduction cleaning, after drying, obtain the polyester filaments that have been reduced and cleaned, and ready for use; (2) weighing the flame retardant raw materials in the formula amount, stirring and mixing to obtain the flame retardant, which is for later use; (3) soaking the polyester filament Oxford cloth that has been reduced and cleaned in the flame retardant according to the ratio of the bath ratio of 1: (10-20); (4) performing rolling after dipping, and controlling the over-roll ratio to 60-80%; (5) entering the oven, heating up to 130-150 degrees Celsius, and keeping the temperature for 10-30 minutes to obtain a flame-retardant tarpaulin.