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Installation for producing SANDWICH PANELS comprising polymeric line to produce Lighter Nuclei to produce Foamed Polymer, polypropylene based Structural Skin Line,Assembly Line of the skins to the nucleus; procedure
Installation for producing SANDWICH PANELS comprising polymeric line to produce Lighter Nuclei to produce Foamed Polymer, polypropylene based Structural Skin Line,Assembly Line of the skins to the nucleus; procedure
The present invention describe a process and an installation for the production of stiff recyclable sandwich-type polymeric panels, preferably polypropylene-based panels, and the panel obtained, comprising three lines, in one of which a polymeric polypropylene-based foamed core is produced by extrusion (line A); the structural skins are produced in a second line (line B), which skins are formed by a polypropylene-based lamina reinforced with wood fiber, on which lamina there is applied an also polypropylene-based surface coating layer reinforced with glass fibers; in the third line the structural skins produced in line B are adhered by heat and pressure to the foamed core produced in line A. The sandwich panel produced has a thickness between 7 and 40 mm, an overall density of 400-700 kg/m 3 and an elastic modulus of 5-10 GPa.
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机译:本发明描述了用于生产刚性可回收的夹心型聚合物板,优选聚丙烯基板的方法和设备,以及所获得的板,其包括三条生产线,其中一条通过以下方式生产聚合物聚丙烯基发泡芯材:挤出(A线);结构表皮在第二条生产线(B行)中生产,表皮由用木纤维增强的聚丙烯基薄板形成,在该薄板上还涂覆了用玻璃纤维增强的聚丙烯基表面涂层。在第三条生产线中,通过热和压力将生产线B中生产的结构表皮粘附到生产线A中生产的泡沫芯上。生产的夹芯板的厚度在7至40 mm之间,总密度为400-700 kg / m 3弹性模量为5-10 GPa。
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