Abstract
The invention discloses a flame-retardant polyethylene for producing fireproof aluminum-plastic board cores and a preparation method thereof, which is grafted with aluminum hydroxide, magnesium hydroxide, zinc borate, monoalkoxy titanate, and maleic anhydride Polyethylene and polyethylene are used as raw materials and prepared by high-temperature melting. The invention has reasonable formula design, simple preparation process and low production cost, and the prepared flame-retardant polyethylene has good flame-retardant performance when used to produce fire-proof aluminum-plastic board cores, and solves the problem of poor fire-proof performance of aluminum-plastic boards produced in the prior art question.
Description
Flame-retardant polyethylene for producing fireproof aluminum-plastic board core and preparation method thereof
Technical field The invention belongs to the technical field of producing fireproof aluminum-plastic board core material, relates to a kind of production fireproof aluminum-plastic
Flame-retardant polyethylene for board core and its preparation method.
Background technology: Aluminum-plastic composite board is a new type of decorative material, which is a plate made of aluminum and plastic core material bonded and compounded by special adhesive under certain process conditions. Because of its excellent properties such as low density, good rigidity, rich colors and high surface smoothness, it is widely used in curtain wall, indoor and outdoor decoration and other fields. The polyethylene plastic used for the plastic core of the prior art is flammable and has the technical problem of poor fire performance.
SUMMARY OF THE INVENTION The object of the present invention is to solve the technical problem of poor fireproof performance in the prior art, and provide a flame-retardant polyethylene for producing fire-resistant aluminum-plastic panel core and its preparation method to overcome the deficiencies of the prior art.
In order to achieve the above object, the flame retardant polyethylene used in the production of the fireproof aluminum-plastic board core of the present invention is prepared by high-temperature melting of the following raw materials according to their weight proportions: aluminum hydroxide 34.5, magnesium hydroxide 34.5, Zinc borate 6, monoalkoxy titanate 0.6, maleic anhydride grafted polyethylene 4.5 and polyethylene 20;
The present invention produces the preparation method of the flame-retardant polyethylene that fire-proof aluminum-plastic plate core is used to carry out by following processing step:
1), 2500 mesh aluminum oxide, magnesium hydroxide and zinc borate are weighed by described weight ratio, drop into high-speed mixer, heat and stir;
2), When the temperature of the high-speed mixer rises to 100°C, the monoalkoxy titanate coupling agent is dropped into to continue stirring and heated to 125°C, then the maleic anhydride grafted polyethylene compatibilizer and the The polyethylene carrier is stirred and heated to 170–175t: the material is discharged to obtain flame-retardant polyethylene, which is used as a raw material for producing fire-resistant aluminum-plastic board cores.
The invention has…
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