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A composite sheet formed by co-extrusion of metal profile and wood-plastic and preparation method thereof

A metal profile and composite sheet technology, which is applied in building components, buildings, building structures, etc., can solve the problem that wood-plastic foam materials and metal profiles cannot be co-extruded, and improve the cooling and shaping efficiency, and improve the thermal insulation. Acoustic performance, effect to ensure basic intensity

Active Publication Date: 2019-07-02
BEIJING NEW BUILDING MATERIALS PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is impossible to co-extrude the wood-plastic foamed material and the metal profile through the above-mentioned patented technology

Method used

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  • A composite sheet formed by co-extrusion of metal profile and wood-plastic and preparation method thereof
  • A composite sheet formed by co-extrusion of metal profile and wood-plastic and preparation method thereof
  • A composite sheet formed by co-extrusion of metal profile and wood-plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Weigh raw materials:

[0053] Weigh the raw materials of wood-plastic frame 1: 40 parts by weight of polyvinyl chloride, 35 parts by weight of wood powder (wood powder, aspect ratio less than 40:1, particle diameter less than 1mm), 10 parts by weight of inorganic filler, impact modified 8 parts by weight of agent, 2 parts by weight of lubricant, 2 parts by weight of stabilizer, 2 parts by weight of compatibilizer, 1 part by weight of processing aid, and 3 parts by weight of foaming agent.

[0054] (2) Manufacturing process:

[0055] Firstly, prefabricate the perforated plate structure by punching, drilling, etc. on the surface of metal plates such as steel plates and aluminum plates, and then process it into open profiled materials according to the cross-section design and ventilation requirements. Among them, the cross-section of the metal profile 2 can be It is a U-shaped, C-shaped or semi-enclosed special-shaped shape. In this embodiment, such as Figure 5 with...

Embodiment 2

[0080] This embodiment produces as Figure 8 The preparation method and raw materials of the composite plate shown are basically the same as those in Example 1. The difference is that: using Figure 7 Extrusion die shown and as Figure 9 metal profiles shown. Figure 7 The metal profiles 2 and divider panels 33 with figure 1 The positions of the metal profile 2 and the partition plate 33 in the composite plate are different, Figure 7 The web of the metal profile 2 in the composite panel is bonded to the outer layer of the composite panel (the inner wall close to the surface of the composite panel). Figure 7 and figure 1 The cross-sections at the same cutting position are basically the same, with only some differences in size.

[0081] Figure 7 Dies shown can be fabricated Figure 8 Composite panels as shown, such as Figure 7 As shown, the extrusion die 3 includes a partition plate 33 and three cores 32 .

[0082] Divider 33 and metal profile 2 surround a hollow c...

Embodiment 3

[0089] produce as Figure 10 Shown composite plate, its preparation method and raw material are basically the same as embodiment 2, difference is:

[0090] Extrusion die: The extrusion die 3 is only provided with a partition plate 33, but no core 32 is provided. In this way, when the composite sheet is manufactured, the partition plate 33 can form a hollow container with the metal profile 2, and the container and the mold body There is a gap for injecting molten wood-plastic material between 31, so that the molten wood-plastic foam material enters the cavity 34 and injects into the gap, forming a wood-plastic composite board on the periphery of the metal profile 2 and the partition plate 33. After the frame 1 is cooled and formed, the composite plate has only one first cavity, and the surface of the metal profile 2 is bonded to the wall of the first cavity.

[0091] Metal profile: the metal profile 2 used in this embodiment is basically the same as that of embodiment 2, the d...

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Abstract

The application provides a metal sectional material and wood-plastic co-extrusion moulded composite plate. The metal sectional material and wood-plastic co-extrusion moulded composite plate comprises a wood-plastic frame and a metal sectional material, wherein the wood-plastic frame is provided with a first chamber; the metal sectional material is located in the first chamber; the wall surface of the first chamber is bonded with the surface of the metal sectional material; the metal sectional material is provided with a plurality of prefabricated holes; the first chamber of the wood-plastic frame is provided with projections embedding into or penetrating through the prefabricated holes; the projections are integrally moulded with the wood-plastic frame, wherein the wood-plastic frame is made from a foamed wood-plastic material, and the metal sectional material is an open metal sectional material. According to the co-extrusion moulded composite plate provided by the embodiment of the invention, the open metal sectional material is used, and a closed shape is not used, thus ensuring the basic strength of the composite plate, saving the consumption of steel, and creating conditions for realizing compressed air inner-cooling for an extrusion mould.

Description

technical field [0001] The invention relates to a thermal insulation board, in particular to a composite board formed by co-extrusion of metal profiles and wood plastics and a preparation method thereof. Background technique [0002] Solid clay bricks are often used for traditional building walls, which is not conducive to the protection of cultivated land; at present, wall materials such as aerated concrete blocks and hollow bricks need to be constructed on site, requiring cement wet work, generating a lot of construction waste on site and consuming a lot of labor. , The dimensional accuracy of the wall is also difficult to control, and the construction period is long, ranging from more than half a year to more than one year or even more than two years to complete. [0003] In order to meet the needs of industrialization, ecology, energy saving and green environmental protection of new buildings, Chinese patent CN102650367A provides metal and resin composite co-extrusion pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C2/284E04C2/38C08L23/06C08L23/12C08L27/06C08L27/24C08L33/12C08L97/02C08J9/04
Inventor 赵永生
Owner BEIJING NEW BUILDING MATERIALS PLC
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