Light hard double-layer honeycomb polypropylene hollow plate

Abstract

The invention relates to a light hard double-layer honeycomb polypropylene hollow plate, which belongs to a manufacturing method of a multilayer co-extrusion molding hollow plate. The light hard double-layer honeycomb polypropylene hollow plate is characterized in that an internal structure comprises an upper skin layer, a double-layer honeycomb sandwich structure layer and a lower skin layer, wherein the double-layer honeycomb sandwich structure layer is extruded by a plastic extruder and formed by virtue of a pair of vacuum plastic suction pressing rollers, the double-layer honeycomb sandwich structure layer is of a sandwich type structure and is provided with an upper layer and a lower layer which form a staggered honeycomb shape, the upper layer and the lower layer are mutually supported and connected by flaky plates, and the material formulas of the upper skin layer, the double-layer honeycomb sandwich structure layer and the lower skin layer are consistent. The light hard double-layer honeycomb polypropylene hollow plate is provided, so as to overcome the defects of poor impact resistant performance, compressive deformation and infirmness of an existing plastic hollow plate, and the light hard double-layer honeycomb polypropylene hollow plate can simultaneously bear transverse section stress, longitudinal section stress and plate positive stress and has the advantages of uniform stress of each side surface, wide application range and good use effect.

Description

technical field [0001] The invention relates to a hard and lightweight double-layer honeycomb polypropylene hollow board, which belongs to the manufacturing method of multi-layer co-extruded hollow board, in particular to a double-layer honeycomb polypropylene hollow board formed by high-temperature hot air, hot pressing and hot melting. . Background technique [0002] At present, it is used in many fields such as turnover logistics equipment and plastic construction. Plastic hollow boards are more and more widely used. Plastic hollow boards are mainly extruded by plastic extruders and produced by vacuum shaping in hollow grid board molds. , but there are many restrictions on the application of these plastic hollow boards, basically they are mainly used in places where the weight of the goods is light or as a backing plate or a partition. It is composed of ribs, the strength is not high, not strong, the force is not strong, it is easy to be compressed and deformed, and it i...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a hard and light double-layer honeycomb polypropylene hollow board to solve the shortcomings of the existing plastic hollow boards, such as poor impact resistance, compression deformation and unsteadiness, with high streng

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