A kind of flame-retardant aluminum-plastic panel core material and preparation method thereof

Abstract

The invention discloses a flame-retardant core material for an aluminum-plastic panel and a preparation method for the flame-retardant core material. The flame-retardant core material for the aluminum-plastic panel comprises the following components in weight percentage: 12-20 percent of elastomer, 0-3 percent of compatilizer, 73-84 percent of halogen-free fire retardant, 0-3 percent of flame-retardant synergist, 0.15-0.3 percent of coupling agent, 0.2-1 percent of antioxygen, 2-3 percent of lubricant and 0.5-0.9 percent of other additives. The halogen-free flame-retardant plastic core material for the fireproof aluminum-plastic panel not only has the characteristics of low cost, no halogen, low smoke, flame resistance, high hot-pressing bonding strength, high panel bendability and coilability and the like but also has the advantage of good mechanical behavior. When the composite aluminum-plastic panel is produced by adopting the material disclosed by the invention, the composite molding process performance is good, and the standard of the aluminum-plastic panel and the process requirement of a continuous industrial production line can be met. The combustion performance of the halogen-free flame-retardant core material can completely meet the A2-level requirement of the GB20286-2006 regulation.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to an aluminum-plastic panel core layer material and a preparation method thereof. Background technique [0002] Aluminum-plastic composite panels were introduced into China in the 1990s, and have been widely used in building curtain walls, indoor and outdoor decorations, and advertisements. Composite boards. In recent years, many large-scale fires in public places have occurred in China, causing heavy casualties and property losses. The national mandatory standard stipulates that aluminum-plastic panels used as wall decoration materials must meet flame retardant or non-combustible grades. Although the halogen-containing flame-retardant core material has certain flame retardancy, because of the halogen-based flame retardant, a large amount of toxic carbon monoxide and corrosive gas will be produced during combustion, and the secondary disasters caused by the halogen-based flame ret...

AI Technical Summary

Problems solved by technology

At present, the most widely used is the halogen-free flame-retardant core layer material, which is used in airports, high-end high-rise indoor and outdoor decorations at stations, and high-end entertainment venues, but many of them can only reach the flame-retardant B level and cannot reach the non-flammable A level.

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