Flexible glass fiber composite material

Abstract

The utility model relates to the technical field of composite materials, in particular to a flexible glass fiber composite material, which is characterized by comprising a first thermoplastic elastomer layer, a first bonding layer, a first glass fiber layer, a second bonding layer and a second thermoplastic elastomer layer which are sequentially arranged from bottom to top, the first thermoplastic elastomer layer, the first bonding layer, the first glass fiber layer, the second bonding layer and the second thermoplastic elastomer layer are compounded and molded through hot pressing. The flexible cable has the advantages of high tensile resistance and strong flexibility.

Description

Technical Field

[0001] This utility model relates to the field of composite material technology, and more specifically, to a flexible glass fiber composite material. Background Technology

[0002] With the advancement of technology and the development of industry, the requirements for material performance are becoming increasingly stringent across all sectors. Glass fiber composite materials are not only lightweight and high-strength, but also possess excellent corrosion resistance, impact resistance, and flame retardancy, making them increasingly popular and sought after.

[0003] Currently, glass fiber composites are mainly high-rigidity hard glass steels prepared by combining glass fibers with thermosetting or thermoplastic resin matrices. However, most existing flexible glass fiber composites lack flexibility and tensile strength, which limits their widespread application in automobile manufacturing, footwear, bags, and electronic products. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a flexible glass fiber composite material with the advantages of high tensile strength and strong flexibility.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A flexible glass fiber composite material includes: a first thermoplastic elastomer layer, a first adhesive layer, a first glass fiber layer, a second adhesive layer, and a second thermoplastic elastomer layer arranged sequentially from bottom to top, wherein the first thermoplastic elastomer layer, the first adhesive layer, the first glass fiber layer, the second adhesive layer, and the second thermoplastic elastomer layer are formed by hot pressing.

[0007] In one embodiment, the system further includes an overlay layer disposed on the second thermoplastic elastomer layer, the overlay layer comprising: a third adhesive layer, a second glass fiber layer, a fourth adhesive layer, and a third thermoplastic elastomer layer.

[0008] In one embodiment, the number of the superimposed layers is set to a range of 1-3.

[0009] In one embodiment, the first thermoplastic elastomer layer and the second thermoplastic elastomer layer are both made of thermoplastic polyurethane film, and the first glass fiber layer and the second glass fiber layer are both made of glass fiber cloth.

[0010] In one embodiment, the thickness of the thermoplastic polyurethane film ranges from 0.05 to 0.3 mm.

[0011] In one embodiment, the thickness of the glass fiber cloth ranges from 0.05 to 0.50 mm.

[0012] In one embodiment, the fiberglass cloth is a plain fiberglass cloth, a satin fiberglass cloth, or a twill fiberglass cloth.

[0013] In one embodiment, both the first adhesive layer and the second adhesive layer are made of waterborne polyurethane film.

[0014] In one embodiment, the thickness of the flexible glass fiber composite material ranges from 0.47 to 0.53 mm.

[0015] The above-mentioned flexible glass fiber composite material has the following beneficial effects:

[0016] By sequentially setting a first thermoplastic elastomer layer, a first adhesive layer, a first glass fiber layer, a second adhesive layer, and a second thermoplastic elastomer layer from bottom to top, the final product possesses both a certain degree of rigidity and high tensile strength and strong flexibility, thus achieving broad application prospects in aerospace, automotive, and other fields. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of this embodiment. Figure 1 ;

[0018] Figure 2 This is a structural schematic diagram of this embodiment. Figure 2 ;

[0019] In the figure: 101, first thermoplastic elastomer layer; 102, second thermoplastic elastomer layer; 103, third thermoplastic elastomer layer; 201, first adhesive layer; 202, second adhesive layer; 203, third adhesive layer; 204, fourth adhesive layer; 301, first glass fiber layer; 302, second glass fiber layer; 4, stacked layer. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] A flexible glass fiber composite material, such as Figure 1As shown, the structure includes a first thermoplastic elastomer layer 101, a first adhesive layer 201, a first glass fiber layer 301, a second adhesive layer 202, and a second thermoplastic elastomer layer 102 arranged sequentially from bottom to top. The first thermoplastic elastomer layer 101, the first adhesive layer 201, the first glass fiber layer 301, the second adhesive layer 202, and the second thermoplastic elastomer layer 102 are formed by hot pressing.

[0026] In this embodiment, the first glass fiber layer 301 is bonded to the top and bottom of the first adhesive layer 201 and the second adhesive layer 202 respectively. Then, the first thermoplastic elastomer layer 101 and the second thermoplastic elastomer layer 102 are placed on the outermost side respectively. The combination of the five is hot-pressed. The hot-pressing temperature needs to be higher than the softening point of the first thermoplastic elastomer layer 101 and the second thermoplastic elastomer layer 102, and lower than their melting point.

[0027] By sequentially setting the first thermoplastic elastomer layer 101, the first adhesive layer 201, the first glass fiber layer 301, the second adhesive layer 202, and the second thermoplastic elastomer layer 102 from bottom to top, the final product has both a certain rigidity and high tensile strength and strong flexibility, thus having a wide range of application prospects in aerospace, automotive and other fields.

[0028] Furthermore, such as Figure 2 As shown, it also includes a superimposed layer 4 disposed on the second thermoplastic elastomer layer 102. The superimposed layer 4 includes a third adhesive layer 203, a second glass fiber layer 302, a fourth adhesive layer 204 and a third thermoplastic elastomer layer 103 arranged sequentially from bottom to top.

[0029] Furthermore, such as Figure 2 As shown, the number of stacked layers 4 is set to a range of 2-3, and they can be repeatedly stacked on the second thermoplastic elastomer layer 102 to form products of different thicknesses.

[0030] The top and bottom layers of the stacked product are both thermoplastic elastomer layers, which can be treated to prevent wear, such as by adding a protective layer.

[0031] Specifically, such as Figure 1 and Figure 2 As shown, the first thermoplastic elastomer layer 101 and the second thermoplastic elastomer layer 102 are both made of thermoplastic polyurethane film, and the first glass fiber layer 301 and the second glass fiber layer 302 are both made of glass fiber cloth.

[0032] The basis weight of fiberglass cloth is limited to 100-300 g / m. 2 The preferred value is 150-250g / m³. 2The model is not limited here. The outermost layer of the final product is a thermoplastic elastomer film, which not only improves the wear resistance and elasticity of the final product, but also provides good support and shock absorption. Further wear-resistant treatments can also be applied, such as adding a protective layer.

[0033] Furthermore, such as Figure 1 and Figure 2 As shown, the thickness of the thermoplastic polyurethane film ranges from 0.05 to 0.3 mm, preferably from 0.10 to 0.15 mm.

[0034] An excessively thick thermoplastic polyurethane film will result in a softer final product, while an insufficiently thick film will result in a harder final product and make it difficult to achieve the outermost protective function. Furthermore, the thickness of the thermoplastic polyurethane film needs to match that of the first glass fiber layer 301 and the second glass fiber layer 302; if the difference is too large, it will lead to poor overall flexibility.

[0035] Specifically, such as Figure 1 and Figure 2 As shown, the thickness of the first glass fiber layer 301 and the second glass fiber layer 302 both range from 0.05 to 0.50 mm.

[0036] The thickness range of the first glass fiber layer 301 and the second glass fiber layer 302 is preferably 0.15-0.25 mm. If the thickness is too small, the penetration of the first adhesive layer 201 and the second adhesive layer 202 into the first glass fiber layer 301 and the second glass fiber layer 302 will be too high. If the thickness is too large, the penetration of the first adhesive layer 201 and the second adhesive layer 202 into the first glass fiber layer 301 and the second glass fiber layer 302 will be too low, resulting in a soft final product that is prone to delamination.

[0037] Specifically, such as Figure 1 and Figure 2 As shown, the glass fiber layer is one or more of glass fiber plain weave fabric, glass fiber satin weave fabric, and glass fiber twill weave fabric.

[0038] Specifically, such as Figure 1 and Figure 2 As shown, the first adhesive layer 201 and the second adhesive layer 202 are both made of water-based polyurethane film.

[0039] The purpose of using an aqueous polyurethane film as the material for the first adhesive layer 201 and the second adhesive layer 202 is to bond the thermoplastic elastomer layer to its adjacent glass fiber layer. The thickness of the first adhesive layer 201 and the second adhesive layer 202 is very small and is not limited here.

[0040] Specifically, such as Figure 1 and Figure 2As shown, the thickness range of the flexible glass fiber composite material is 0.47-0.53 mm.

[0041] A method for preparing a flexible glass fiber composite material is as follows:

[0042] Select fiberglass cloth with a suitable basis weight, and impregnate or spray it with a 5% concentration of aqueous polyurethane solution. Bake the impregnated or sprayed fiberglass cloth at 100℃ for 5-30 minutes to remove moisture. The thickness of the baked fiberglass cloth should be 0.15-0.25 mm. Place a thermoplastic polyurethane film of suitable thickness on both the top and bottom of the fiberglass cloth, and then hot-press them together. The hot-pressing temperature range is 110-170℃, and the hot-pressing pressure range is 0.1-3.0 kg / cm². 2 The preferred value is 0.5-1.5 kg / cm³. 2 The hot-pressing time ranges from 5 to 300 seconds, preferably 30 to 150 seconds. Due to the relatively low hot-pressing pressure and temperature, the thickness variation of each layer after hot pressing is also relatively small.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flexible glass fiber composite material, characterized in that, include: The first thermoplastic elastomer layer, the first adhesive layer, the first glass fiber layer, the second adhesive layer, and the second thermoplastic elastomer layer are arranged sequentially from bottom to top. The first thermoplastic elastomer layer, the first adhesive layer, the first glass fiber layer, the second adhesive layer, and the second thermoplastic elastomer layer are formed by hot pressing. The flexible glass fiber composite material further includes a superimposed layer disposed on the second thermoplastic elastomer layer, the superimposed layer including a third adhesive layer, a second glass fiber layer, a fourth adhesive layer and a third thermoplastic elastomer layer arranged sequentially from bottom to top; The first thermoplastic elastomer layer and the second thermoplastic elastomer layer are both made of thermoplastic polyurethane film, and the first glass fiber layer and the second glass fiber layer are both made of glass fiber cloth. The fiberglass cloth is one or more of the following: plain fiberglass cloth, satin fiberglass cloth, and twill fiberglass cloth. Both the first adhesive layer and the second adhesive layer are made of water-based polyurethane film; The thickness of the flexible glass fiber composite material ranges from 0.47 to 0.53 mm.

2. The flexible glass fiber composite material according to claim 1, characterized in that: The superimposed layers are provided in 1 to 3 layers.

3. The flexible glass fiber composite material according to claim 1, characterized in that: The thickness of the thermoplastic polyurethane film ranges from 0.05 to 0.3 mm.

4. The flexible glass fiber composite material according to claim 1, characterized in that: The thickness of the glass fiber cloth ranges from 0.05 to 0.50 mm.

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