摘要:
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/m3 and an elastic modulus of 5-10 GPa.
摘要翻译:本发明描述了用于生产硬质可再循环夹层型聚合物面板,优选聚丙烯基面板的方法和设备,并且获得的面板包括三条线,其中一条聚合物基于聚丙烯的发泡芯通过 挤出(线A); 结构表皮在第二行(B线)中生产,其表面由用木纤维增强的聚丙烯基薄片形成,其上还涂有用玻璃纤维增强的聚丙烯基表面涂层; 在第三行中,在线B中生产的结构表皮通过热和压力粘附到线A中生产的发泡芯。所生产的夹芯板的厚度为7至40mm,总密度为400-700kg / m 3, 弹性模量为5-10GPa。
摘要:
A process for forming a reinforced product suitable for use as a roofing material is provided, comprising: (a) providing a composition comprising a matrix material; and (b) extruding the composition with an extruder to form a reinforced product, wherein a plurality of fibers is combined with the matrix material prior to or during the extrusion step. Also provided is a process for forming a reinforced product suitable for use as a roofing material, comprising: (a) forming a first layer comprising a first matrix material; (b) providing a plurality of fibers on the first layer; (c) forming a second layer comprising a second matrix material, above the plurality of fibers; and (d) combining the plurality of fibers with the first matrix material and/or the second matrix material, to form a reinforced product.
摘要:
The present invention relates to a method of producing a sheet joined body, the method enabling an improvement in productivity of the sheet joined body The method of producing a sheet joined body according to the present invention includes blowing gas against sheet members so as to bring the sheet members into tight contact with each other to form tight contact parts and, at the same time, irradiating the tight contact parts with laser light to join the sheet members with each other, thereby producing a sheet joined body
摘要:
There is provided a building material composition comprising a filler and a polymer wherein the filler comprises coke and the polymer comprises polyethylene. A process for making the same comprises loading the polyethylene with coke and forming the resulting composition into a building material, the amount of coke being selected depending on the desired building material.
摘要:
The present invention provides a method of making a mouse pad, which mainly includes heating and pressing a fiber fabric on a surface of the mouse pad to form the fiber fabric with a flat layer and a fiber layer, and then printing pattern on the flat layer of the fiber fabric to get the mouse pad with a clear pattern.
摘要:
A recycling method which comprises constructing a membership computer system comprising appending to products identification displays showing that the products satisfy the standards for products scarcely giving loads to environments, easily recyclable products, highly healthy and safe products, or the like, connecting members comprising the producers A of the products to which the identification displays can be appended, product seller B, purchasers or consumers C, waste-collecting members D, collected commodity-transporting members E, and intermediate raw material producers F to an information network manager G through an information network, and totally monitoring and managing the production of the products, sales, wastes and the production of the intermediate raw materials by the information network manager G, and recycling the used products as wastes to the intermediate raw materials for producing the products, and by which the products can be produced with reduced energy, and the system thereof.
摘要:
Extruded composite compositions of PVC and wood particles containing chitosan or chitin as a coupling agent are described. The composite compositions have improved physical and mechanical properties.
摘要:
Moisture-resistant materials comprise an open net-like fabric with strands of varying thicknesses and polymer film thereon. The material is both resistant to water penetration and also slip resistant under dry or wet conditions. The moisture-resistant materials are suitable for use in various applications including roofing underpayment, flashing, housewrap and other construction sheet-like materials. An optional second layer of fabric may be applied to the moisture-resistant material, for example, to improve the strength, tear resistance, and scuff resistance of the moisture-resistant material.
摘要:
A perforated resin extrusion end plate (10) with a curved or arcuate perforated section suitable for use in making extruded foamed polymer strand foam bodies, extruded filled polymer strand articles of manufacture or extruded composites of fibrous organic material and a thermoplastic material such as a wood-plastic composite. The die plate does not fracture under conditions that produce fracturing of a flat perforated die plate with the same perforated area and thickness.
摘要:
The following disclosure provides a low-density fire retardant structural board. The board has a body of fibrous material, a binder and fire retardant agent. The body of fibrous material includes a weight, first and second ends, first and second sides and a thickness. The fibrous material is dispersed throughout the thickness of the body. The binder is also dispersed throughout the thickness of the body. The fire retardant agent is dispersed between individual fibers of the fibrous material and throughout the thickness of the body.