Bending-resistant flexible hollow composite board and production technology thereof
A composite sheet, bending-resistant technology, applied in the direction of synthetic resin layered products, layered products, flexible coverings, etc. Friction characteristics, simple preparation method, and effect of reducing production cost
Pending Publication Date: 2019-05-28
特耐王汇立塑料制品无锡有限公司
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Problems solved by technology
The protective liners traditionally used as parts of mechanical and electrical products are all kinds of foam materials, which have the disadvantages of not being durable, having poor cushioning effect and being unable to be recycled
In recent years, a new type of plastic hollow board has been gradually applied in the field of packaging. However, as a protective lining and partition for mechanical and electrical product parts, the surface hardness of the plastic hollow board is relatively high, and it is easy to scratch the parts; The shape of the product parts is bent, so the protection effect is not good
Also in the automotive industry, hollow boards are used to paste EVA / velvet composites to prevent scratches, but because the glue used for pasting contains formaldehyde, it is not environmentally friendly, and the working environment for workers is also poor. If it is not recycled, it will cause serious environmental pollution
Method used
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[0023] The present invention will be further described below in conjunction with specific drawings.
[0024] Such as figure 1 Shown: a bending-resistant flexible hollow composite sheet, which is made of three layers of hot pressing from top to bottom: a flexible upper panel, a sandwich layer and a flexible lower panel. The flexible upper panel and the flexible lower panel are respectively made of three layers of different materials. It is made of extruded composite film, and the layers of the flexible upper panel and the flexible lower panel are symmetrically distributed around the center of the sandwich layer. The sandwich layer adopts a three-layer structure, and the sandwich layer is formed with the flexible upper panel as the highest point and the flexible lower panel as the lowest point. Concave and curved. The flexible upper panel is modified PE layer or modified PP layer, PP layer and modified PP layer from top to bottom. The thickness of flexible upper panel 1 and fle...
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Abstract
The invention relates to a bending-resistant flexible hollow composite board. The bending-resistant flexible hollow composite board is formed by a flexible upper panel, a sandwich layer and a flexiblelower panel from top to bottom through hot pressing, wherein the flexible upper panel and the flexible lower panel are respectively formed by pressing three layers of co-extrusion composite films; all layers of the flexible upper panel and the flexible lower panel are symmetrically distributed by taking the sandwich layer as the center; the sandwich layer adopts a three-layer structure; a concave-convex bent shape is formed by the sandwich layer by taking the flexible upper panel as the highest point and the flexible lower panel as the lowest point. A preparation method is simple, steps can be easily operated, and the obtained bending-resistant flexible hollow composite board is high in overall toughness, ductility, puncture resistance and bending resistance, and has good buffer deformation and friction characteristics.
Description
technical field [0001] The invention relates to a bending-resistant flexible hollow composite plate and a production process thereof, in particular to a bending-resistant flexible hollow composite plate applied to protective lining boards for transport packaging of electromechanical products and a production process thereof, belonging to the technical field of composite plate preparation. Background technique [0002] With the continuous increase in the sales of domestic electromechanical products, especially automobiles, the demand for transportation packaging of electromechanical product parts is also increasing. The protective liners traditionally used as parts of mechanical and electrical products are all kinds of foam materials, which have the disadvantages of not being durable, having poor cushioning effect and being unable to be recycled. In recent years, a new type of plastic hollow board has been gradually applied in the field of packaging. However, as a protective ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B32B27/08B32B27/06B32B27/32B32B37/06B32B37/10B29C48/08B29C48/18B29C48/92B65D65/40B60R13/01
Inventor 贺军冯冰冰李霖
Owner 特耐王汇立塑料制品无锡有限公司