PVC-PP polymer alloy toughened composite aluminum profile

Abstract

The utility model discloses a PVC-PP polymer alloy toughening type composite aluminum profile which comprises an aluminum base body layer and a polymer layer, a plurality of first grooves are formed in the bottom of the aluminum base body layer and the inner walls of the two sides of the aluminum base body layer, protruding strips are formed between the adjacent first grooves, the upper ends of the two sides of the aluminum base body layer protrude towards the symmetrical face to form protruding parts, and the protruding parts are connected with the polymer layer. The surface of the protruding part is provided with a plurality of grooves, a protruding block is formed between every two adjacent grooves, the macromolecule layer is connected to the inner side of the aluminum base body layer through the bonding layer, the first strip groove, the grooves and the second strip groove are partially filled with the macromolecule layer, and a reinforcing layer is arranged in the macromolecule layer. The dovetail grooves and the inverted trapezoidal blocks are arranged between the aluminum substrate layer and the polymer layer, so that the aluminum substrate layer and the polymer layer can be bidirectionally meshed during compounding, the connection firmness of a composite surface is enhanced, the arranged reinforcing layer serves as a reinforcing framework, the tensile strength of the polymer layer is improved, and the service life of the polymer layer is prolonged. And interlayer cracking caused by stress concentration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of building profile technology, and in particular to PVC-PP polymer alloy toughened composite aluminum profiles. Background Technology

[0002] Composite aluminum profiles are a new type of material made by combining aluminum alloys with other materials (such as plastics, thermal insulation strips, etc.) through a special process. They combine the strength and corrosion resistance of aluminum alloys with the thermal insulation, heat preservation, and lightweight properties of other materials, and are widely used in construction, transportation, industrial manufacturing and other fields.

[0003] However, in existing composite aluminum profiles, the bonding between aluminum alloy and other materials is insufficient, and the toughness is poor. This makes them prone to chipping and delamination during processing such as cutting and bending, which affects their performance.

[0004] Therefore, we propose a PVC-PP polymer alloy toughened composite aluminum profile to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a PVC-PP polymer alloy toughened composite aluminum profile to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The PVC-PP polymer alloy toughened composite aluminum profile includes an aluminum substrate layer and a polymer layer. The aluminum substrate layer has several grooves (I) on its bottom and inner walls on both sides, with protrusions between adjacent grooves (I). The upper ends of both sides of the aluminum substrate layer protrude towards a symmetrical plane to form protrusions, the surfaces of which have several grooves, with protrusions between adjacent grooves. The bottom of the aluminum substrate layer has two grooves (II). The polymer layer is connected to the inner side of the aluminum substrate layer via an adhesive layer, and partially fills the grooves (I), grooves (II), and other grooves. The polymer layer has a reinforcing layer inside and a protective layer connected to its outer surface.

[0008] In a further embodiment, the cross-sectional structure of the groove and the recess is a dovetail groove.

[0009] In a further embodiment, the cross-sectional structure of the protrusion and the bump is an inverted trapezoid.

[0010] In a further embodiment, the polymer layer is made of a blend of PVC and PP.

[0011] In a further embodiment, the reinforcing layer is made of glass fiber mesh.

[0012] In a further embodiment, the protective layer is a UV-cured anti-oxidation coating.

[0013] In a further embodiment, the adhesive layer is made of epoxy resin adhesive.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention incorporates dovetail grooves and inverted trapezoidal blocks between the aluminum substrate layer and the polymer layer to facilitate bidirectional interlocking during lamination, thereby enhancing the bonding strength of the composite surface. The adhesive layer further enhances the bonding effect of the composite surface, while the reinforcing layer acts as a reinforcing skeleton to disperse external loads, thereby increasing the tensile strength of the polymer layer and preventing interlayer cracking caused by stress concentration. The protective layer covers the outer side of the polymer layer, slowing down its aging. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0018] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the figure: 1. Aluminum substrate layer; 11. Groove 1; 12. Raised strip; 13. Protrusion; 14. Groove; 15. Protrusion; 16. Groove 2; 2. Polymer layer; 3. Reinforcing layer; 4. Protective layer; 5. Adhesive layer. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3The PVC-PP polymer alloy toughened composite aluminum profile includes an aluminum substrate layer 1 and a polymer layer 2. Specifically, the aluminum substrate layer 1 is made of aluminum, while the polymer layer 2 is a blend of PVC and PP, which can be formed by melt blending with PVC, PP, CPE toughening agents, nano-calcium carbonate, antioxidants, etc. Several grooves 11 are formed on the bottom and inner walls of both sides of the aluminum substrate layer 1, and protrusions 12 are formed between adjacent grooves 11. The grooves 11 and protrusions 12 are parallel to the length direction of the aluminum substrate layer 1. Both sides of layer 1 protrude towards the plane of symmetry to form protrusions 13. The protruding surfaces of the protrusions 13 are flush with the inner surfaces of the polymer layer 2, so as to wrap around the upper surface of the polymer layer 2, making the joint seam transverse and reducing the risk of delamination of the longitudinal joint on the upper surface. The surface of the protrusions 13 is provided with a number of grooves 14, and protrusions 15 are formed between adjacent grooves 14. The grooves 14 and protrusions 15 of the two protrusions 13 are symmetrical to each other. The grooves 14 and protrusions 15 are parallel to the width direction of the aluminum substrate layer 1. At the two corners of the bottom of the aluminum substrate layer 1 A second groove 16 is provided, which is parallel to the length direction of the aluminum substrate layer 1. An adhesive layer 5 is sprayed onto the bonding surface between the aluminum substrate layer 1 and the polymer layer 2. Specifically, the adhesive layer 5 uses epoxy resin adhesive to enhance the composite strength between the two layers. The polymer layer 2 is partially filled in the first groove 11, the groove 14, and the second groove 16 to facilitate bidirectional interlocking with the aluminum substrate layer 1. Specifically, the cross-sectional structure of the first groove 11 and the groove 14 is dovetail-shaped, and the cross-sectional structure of the protrusion 13 and the protrusion 15 is inverted trapezoidal. To enhance the bonding strength of the composite surface, a reinforcing layer 3 is provided inside the polymer layer 2. Specifically, the reinforcing layer 3 is made of glass fiber mesh. As a reinforcing skeleton, the reinforcing layer 3 can distribute external loads, improve the tensile strength of the polymer layer 2, and avoid interlayer cracking caused by stress concentration. In addition, the low thermal expansion of glass fiber can suppress the thermal expansion of the polymer layer 2 and reduce temperature difference deformation. A protective layer 4 is connected to the outer surface of the polymer layer 2. Specifically, the protective layer 4 is made of UV-cured anti-oxidation coating to slow down the aging of the polymer layer 2.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PVC-PP polymer alloy toughened composite aluminum profile, comprising an aluminum matrix layer (1) and a polymer layer (2), characterized in that: The bottom and the two side inner walls of the aluminum base layer (1) are provided with a plurality of grooves (11), and the adjacent grooves (11) are provided with convex strips (12); the two side upper ends of the aluminum base layer (1) are provided with convex parts (13) protruding towards the symmetry plane, and the surface of the convex parts (13) is provided with a plurality of grooves (14), and the adjacent grooves (14) are provided with convex blocks (15); the bottom two corners of the aluminum base layer (1) are provided with grooves (16); the polymer layer (2) is connected to the inner side of the aluminum base layer (1) through an adhesive layer (5), and the local polymer layer (2) is filled in the grooves (11), the grooves (14) and the grooves (16); the inside of the polymer layer (2) is provided with a reinforcing layer (3), and the outer surface of the polymer layer (2) is connected with a protective layer (4).

2. The PVC-PP high polymer alloy toughened composite aluminum profile according to claim 1, characterized in that: The cross-sectional structure of the grooves (11) and the grooves (14) is dovetail groove type.

3. The PVC-PP high polymer alloy toughened composite aluminum profile according to claim 1, characterized in that: The cross-sectional structure of the convex parts (13) and the convex blocks (15) is inverted trapezoidal.

4. The PVC-PP polymer alloy toughened composite aluminum profile according to claim 1, characterized in that: The polymer layer (2) is made of PVC and PP blended materials.

5. The PVC-PP high polymer alloy toughened composite aluminum profile according to claim 1, characterized in that: The reinforcing layer (3) is made of glass fiber mesh cloth.

6. The PVC-PP high polymer alloy toughened composite aluminum profile according to claim 1, characterized in that: The protective layer (4) is made of UV-cured anti-oxidation paint.

7. The PVC-PP high polymer alloy toughened composite aluminum profile according to claim 1, characterized in that: The adhesive layer (5) is made of epoxy resin adhesive.

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