Continuous fiber reinforced thermoplastic unidirectional belt

Abstract

The utility model discloses a continuous fiber reinforced thermoplastic one-way belt which comprises a lower fiber layer and an upper fiber layer, and an adhesion layer structure is arranged between the lower fiber layer and the upper fiber layer. Thermoplastic matrix structures are arranged on the outer sides of the lower fiber layer and the upper fiber layer; a second anti-cracking layer is arranged on the thermoplastic matrix structure on the outer side of the lower fiber layer; a first anti-cracking layer is arranged on the thermoplastic matrix structure on the outer side of the upper fiber layer, and is characterized in that the thermoplastic matrix structure comprises a polyether-ether-ketone layer, and a heat-resistant layer and a protective edge are adhered to the outer side of the polyether-ether-ketone layer; the outer side of the heat-resisting layer is connected with the first anti-cracking layer and the second anti-cracking layer in a hot-pressing mode. Through the arrangement of the thermoplastic base body structure, the heat-resistant effect of the surfaces of the lower fiber layer and the upper fiber layer is improved, and the composite fiber is further suitable for being used in a high-temperature-resistant environment.

Description

Technical Field

[0001] This invention belongs to the field of composite material technology, and particularly relates to a continuous fiber reinforced thermoplastic unidirectional tape. Background Technology

[0002] Continuous fiber reinforced thermoplastic unidirectional tape is a high-performance composite material. It is a strip material composed of continuous long fibers arranged in the same direction and embedded in a thermoplastic matrix. This material may have high strength and stiffness, but the thermoplastic matrix material on its surface has poor heat resistance and is easily affected by high temperature environment. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a continuous fiber reinforced thermoplastic unidirectional tape, which realizes the function of heat insulation protection of the surface and avoids the poor heat resistance of the thermoplastic matrix material, thus affecting its use.

[0004] The technical solution is as follows: a continuous fiber-reinforced thermoplastic unidirectional tape, comprising a lower fiber layer and an upper fiber layer, with an adhesive layer structure disposed between the lower fiber layer and the upper fiber layer; a thermoplastic matrix structure is disposed on the outer side of both the lower fiber layer and the upper fiber layer; a second anti-cracking layer is disposed on the thermoplastic matrix structure on the outer side of the lower fiber layer; a first anti-cracking layer is disposed on the thermoplastic matrix structure on the outer side of the upper fiber layer, characterized in that the thermoplastic matrix structure comprises a polyetheretherketone (PEEK) layer, with a heat-resistant layer and a protective edge adhered to the outer side of the PEEK layer; the outer side of the heat-resistant layer is hot-pressed to the first anti-cracking layer and the second anti-cracking layer.

[0005] Preferably, the adhesive layer structure includes a connecting layer, and reinforcing fiber strips are embedded inside the connecting layer.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0007] In this invention, the polyetheretherketone layer, heat-resistant layer, and protective edge are provided to increase the heat resistance of the lower fiber layer and the surface of the upper fiber layer, thereby making it suitable for use in high-temperature environments.

[0008] In this invention, the connection layer and reinforcing fiber strip, together with the assembly of the lower and upper fiber layers, increase the overall strength and prevent easy impact damage. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the thermoplastic matrix structure of this utility model.

[0011] Figure 3This is a schematic diagram of the adhesive layer structure of this utility model.

[0012] Figures 1 to 3 middle:

[0013] 1. Lower fiber layer; 2. Upper fiber layer; 3. Thermoplastic matrix structure; 31. Polyetheretherketone layer; 32. Heat-resistant layer; 33. Protective edge; 4. Adhesive layer structure; 41. Connecting layer; 42. Reinforcing fiber strip; 5. First anti-cracking layer; 6. Second anti-cracking layer. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] As attached Figure 1 As shown, the continuous fiber reinforced thermoplastic unidirectional tape of this utility model includes a lower fiber layer 1 and an upper fiber layer 2, with an adhesive layer structure 4 disposed between the lower fiber layer 1 and the upper fiber layer 2; a thermoplastic matrix structure 3 is disposed on the outer side of both the lower fiber layer 1 and the upper fiber layer 2; a second anti-cracking layer 6 is disposed on the thermoplastic matrix structure 3 on the outer side of the lower fiber layer 1; and a first anti-cracking layer 5 is disposed on the thermoplastic matrix structure 3 on the outer side of the upper fiber layer 2.

[0016] As attached Figure 2 As shown in the above embodiment, specifically, the thermoplastic matrix structure 3 includes a polyetheretherketone layer 31, and a heat-resistant layer 32 and a protective edge 33 are adhered to the outer side of the polyetheretherketone layer 31; the outer side of the heat-resistant layer 32 is hot-pressed to the first anti-cracking layer 5 and the second anti-cracking layer 6.

[0017] As attached Figure 3 As shown in the above embodiment, specifically, the adhesive layer structure 4 includes a connecting layer 41, and a reinforcing fiber strip 42 is embedded inside the connecting layer 41.

[0018] In the above embodiments, specifically, the polyetheretherketone layer 31 is impregnated on the surfaces of the lower fiber layer 1 and the upper fiber layer 2.

[0019] In the above embodiments, specifically, the heat-resistant layer 32 and the protective edge 33 are both made of silicon dioxide layer and silicon dioxide edge.

[0020] In the above embodiments, specifically, the heat-resistant layer 32 and the protective edge 33 are disposed around the polyetheretherketone layer 31.

[0021] In the above embodiments, specifically, the connecting layer 41 is a bismaleimide resin adhesive layer, and is hot-pressed between the lower fiber layer 1 and the upper fiber layer 2 for bonding.

[0022] In the above embodiments, specifically, the reinforcing fiber strip 42 is a glass fiber strip and is placed between the lower fiber layer 1 and the upper fiber layer 2 to increase its strength.

[0023] Working principle

[0024] The working principle of this utility model is as follows: During production, the connecting layer 41 is sandwiched between the lower fiber layer 1 and the upper fiber layer 2 and hot-pressed. Then, the polyether ether ketone layer 31, the heat-resistant layer 32, and the protective edge 33 are impregnated on the surfaces of the lower fiber layer 1 and the upper fiber layer 2. Finally, the first anti-cracking layer 5 and the second anti-cracking layer 6 are hot-pressed on their surfaces to complete the process. During use, the first anti-cracking layer 5 and the second anti-cracking layer 6 increase the overall surface anti-cracking effect. At the same time, the heat-resistant layer 32 and the protective edge 33 increase the heat insulation effect. Finally, the fiber strip 42 is reinforced to increase the strength of the lower fiber layer 1 and the upper fiber layer 2 and prevent easy damage.

[0025] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution of this utility model, falls within the protection scope of this utility model.

Claims

1. A continuous fiber reinforced thermoplastic unidirectional tape, comprising a lower fiber layer (1) and an upper fiber layer (2), wherein an adhesive layer structure (4) is provided between the lower fiber layer (1) and the upper fiber layer (2); a thermoplastic matrix structure (3) is provided on the outer side of both the lower fiber layer (1) and the upper fiber layer (2); a second anti-cracking layer (6) is provided on the thermoplastic matrix structure (3) on the outer side of the lower fiber layer (1); and a first anti-cracking layer (5) is provided on the thermoplastic matrix structure (3) on the outer side of the upper fiber layer (2), characterized in that, The thermoplastic matrix structure (3) includes a polyether ether ketone layer (31), and a heat-resistant layer (32) and a protective edge (33) are bonded to the outside of the polyether ether ketone layer (31); the outside of the heat-resistant layer (32) is hot-pressed to the first anti-cracking layer (5) and the second anti-cracking layer (6).

2. The continuous fiber-reinforced thermoplastic unidirectional tape as described in claim 1, characterized in that, The adhesive layer structure (4) includes a connecting layer (41), and a reinforcing fiber strip (42) is embedded inside the connecting layer (41).

3. The continuous-fiber-reinforced thermoplastic unidirectional tape of claim 1, wherein, The polyether ether ketone (31) layers are all impregnated on the surfaces of the lower fiber layer (1) and the upper fiber layer (2).

4. The continuous-fiber-reinforced thermoplastic unidirectional tape of claim 1, wherein, The heat-resistant layer (32) and the protective edge (33) are both made of silicon dioxide layer and silicon dioxide edge.

5. The continuous-fiber-reinforced thermoplastic unidirectional tape of claim 1, wherein, The heat-resistant layer (32) and the protective edge (33) are disposed on the periphery of the polyether ether ketone layer (31).

6. The continuous-fiber-reinforced thermoplastic unidirectional tape of claim 2, wherein, The connecting layer (41) is made of bismaleimide resin adhesive and is hot-pressed between the lower fiber layer (1) and the upper fiber layer (2) for bonding.

7. The continuous-fiber-reinforced thermoplastic unidirectional tape of claim 2, wherein, The reinforcing fiber strip (42) is made of glass fiber and is placed between the lower fiber layer (1) and the upper fiber layer (2) to increase its strength.

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