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Composite profile

A composite profile and profile technology, applied in synthetic resin layered products, coatings, layered products, etc., can solve the problems of reduced plastic casing restraint, plastic casing cracking, poor weather resistance, etc. Good, improve the quality, the effect of high bonding strength between layers

Inactive Publication Date: 2020-05-12
ANHUI SENTAI WPC GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the specific use practice, it is found that the adhesive layer is greatly affected by the temperature difference, especially in northern China, the copolymer prepared by polymerization of α-olefin and epoxy-containing unsaturated monomer is prone to degradation and aging , poor weather resistance, resulting in a sharp drop in the binding of the plastic sleeve after a period of use, causing the plastic sleeve to crack, making it difficult to provide long-term protection

Method used

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] This specific embodiment is only an explanation of the present invention, not a limitation of the present invention. Any changes made by those skilled in the art after reading the description of the present invention, as long as they are within the scope of the claims, will be subject to patent law. protection of.

[0040] Such as figure 1 As shown, a composite profile includes a metal core material 1 made of aluminum alloy, an adhesive layer 2 formed of hot melt adhesive and a cladding layer 3 made of plastic. In this embodiment, the hot melt adhesive is a mixture of maleic anhydride grafted PE.

[0041] The mold structure for manufacturing the above-mentioned composite profiles is as follows:

[0042] Such as Figure 2-4 As shown, the mold 4 is assembled and fixed by a plurality of mold plates, and has a cavity 41, a melt channel 42, a melt channel 43 and ...

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Abstract

The invention relates to a composite profile, and belongs to the technical field of building components. The composite profile comprises a metal core material and a coating layer, wherein the coatinglayer coats the periphery of the metal core material, and an adhesive layer is arranged between the metal core material and the coating layer, and is obtained by melting and curing a hot melt adhesive. According to the invention, a melt co-extrusion process is adopted, and a hot melt adhesive and a plastic are sequentially extruded on the surface of a metal core material; and the composite profileprepared through the co-extrusion process has the advantages of being good in forming degree and high in interlayer bonding strength.

Description

technical field [0001] The invention relates to a composite profile, which belongs to the technical field of building components. Background technique [0002] Metal profiles are widely used in the construction field, such as aluminum alloy profiles. Bare metal profiles are prone to rust; painted metal profiles are also vulnerable to physical damage, which can damage the coating, which is also prone to rust. A better solution is to install a plastic casing on the outside of the metal profile, so that the metal profile can be better protected. However, due to the different material properties of metal and plastic, when the ambient temperature is different, the expansion and contraction affected by the temperature are not synchronized, so that the plastic sleeve often cracks, so it is difficult to provide long-term protection. [0003] European Patent Grant Publication No. EP2620 276 B1 discloses a constructional member comprising a monolithic extrusion comprising a metal co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B15/08B32B7/12B32B1/00B29C48/151B29C48/18B29C48/30B29C48/49
CPCB32B1/00B32B7/12B32B15/08B32B27/06B29C48/151B29C48/18B29C48/30B29C48/49
Inventor 唐道远吴光荣黄东辉
Owner ANHUI SENTAI WPC GRP CO LTD