Hydrolysis-resistant polyurethane fabric

Abstract

The utility model relates to a hydrolysis-resistant polyurethane fabric which comprises a fabric body, a middle layer is arranged on the outer side of the fabric body, and a surface layer is arranged at the end, away from the fabric body, of the middle layer. The middle layer is used for improving the hydrolysis resistance of the fabric main body; the surface layer is used for increasing hydrophobicity of the fabric body, the middle layer is composed of a first hydrolysis-resistant layer, a connecting layer and a second hydrolysis-resistant layer, the first hydrolysis-resistant layer is located on the outer side of the fabric body, the connecting layer is located at the end, away from the fabric body, of the first hydrolysis-resistant layer, and the second hydrolysis-resistant layer is located at the end, away from the fabric body, of the connecting layer; the first hydrolysis-resistant layer and the second hydrolysis-resistant layer are both made of a wet-process polyurethane material, the thickness of the first hydrolysis-resistant layer and the thickness of the second hydrolysis-resistant layer are both 0.13-1.5 mm, and the connecting layer is a foaming layer. The hydrolysis-resistant polyurethane fabric has the beneficial effects that the hydrolysis resistance of the fabric in use can be improved, the hydrolysis-resistant polyurethane fabric has good hydrolysis resistance and aging resistance, and the overall practicability of the polyurethane fabric is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane fabrics, in particular to a hydrolysis-resistant polyurethane fabric. Background Art

[0002] Thermoplastic polyurethane elastomers have excellent physical properties, wear resistance, and biocompatibility. They have a wide range of adjustable hardness and are suitable for many processing methods. They are widely used in various industries. Polyester thermoplastic polyurethane elastomers are favored in some industries because they have higher mechanical strength than polyether types.

[0003] Most of the products in the prior art use ordinary polyester polyurethane, which has low quality and grade, and general hydrolysis resistance. When immersed in water or exposed to moisture, it will cause the mechanical properties to deteriorate. The problem of poor hydrolysis and aging resistance seriously limits the expansion of its application field. Therefore, it is particularly important to improve the existing polyurethane fabrics and design a new type of hydrolysis-resistant polyurethane fabric to solve the above-mentioned technical defects and improve the practicality of the overall polyurethane fabric. Utility Model Content

[0004] In view of the shortcomings of the prior art that the mechanical properties will decrease and the hydrolysis and aging resistance will be poor when immersed in water or exposed to moisture, the utility model provides a hydrolysis-resistant polyurethane fabric, which can increase the hydrolysis resistance of the fabric, has good hydrolysis resistance and aging resistance, and improves the overall practicality of the polyurethane fabric.

[0005] The utility model provides the following technical solution: a hydrolysis-resistant polyurethane fabric, comprising: a fabric body, an intermediate layer is arranged on the outer side of the fabric body, and a surface layer is arranged on one end of the intermediate layer away from the fabric body;

[0006] The middle layer is used to increase the hydrolysis resistance of the main body of the fabric;

[0007] The surface layer is used to increase the hydrophobicity of the main body of the fabric.

[0008] Preferably, the middle layer consists of a first hydrolysis resistant layer, a connecting layer and a second hydrolysis resistant layer, the first hydrolysis resistant layer is located on the outside of the fabric body, the connecting layer is located at the end of the first hydrolysis resistant layer away from the fabric body, and the second hydrolysis resistant layer is located at the end of the connecting layer away from the fabric body.

[0009] Preferably, the first hydrolysis-resistant layer and the second hydrolysis-resistant layer are both made of wet-process polyurethane material, and the thickness of the first hydrolysis-resistant layer and the second hydrolysis-resistant layer are both 0.13-1.5 mm, and the connecting layer is a foaming layer.

[0010] Preferably, a plurality of connecting grooves are provided on both sides of the connecting layer close to the first hydrolysis resistant layer and the second hydrolysis resistant layer, and a plurality of connecting blocks are provided on one end of the first hydrolysis resistant layer and the second hydrolysis resistant layer close to the connecting layer, and the external structure size of the connecting block is designed to correspond to the internal structure size of the connecting groove.

[0011] Preferably, a reinforcement layer is provided at one end of the first hydrolysis resistant layer and the second hydrolysis resistant layer away from the connecting layer. The reinforcement layer is made of polyester fibers interwoven into a mesh structure, and the thickness of the reinforcement layer is 0.1-0.2 mm.

[0012] Preferably, the surface layer consists of an antistatic layer and a wear-resistant layer, the antistatic layer is located at one end of the second hydrolysis-resistant layer away from the connecting layer, and the wear-resistant layer is located at one end of the antistatic layer away from the second hydrolysis-resistant layer.

[0013] Preferably, the wear-resistant layer is made of emulsified wax, and the thickness of the wear-resistant layer is 0.2-0.4 mm, and the interior of the antistatic layer is filled with nano-scale activated carbon.

[0014] The beneficial effects of the utility model are as follows: through the design of the intermediate layer, the first hydrolysis-resistant layer and the second hydrolysis-resistant layer are both made of wet-process polyurethane material, so that the main body of the fabric has good hydrolysis resistance and aging resistance; the connecting layer is formed by coating with a mixed solution of polyurethane resin, dimethylformamide and calcium carbonate, the thickness of the foaming layer needs to be customized according to actual needs, and the foaming layer plays the role of a structural skeleton, which solves the problem that most products in the prior art use ordinary polyester polyurethane, which has low quality and grade, general hydrolysis resistance, and will cause a decrease in mechanical properties and poor hydrolysis and aging resistance when immersed in water or exposed to moisture. The reinforcing layer plays the role of a reinforcing rib on the first hydrolysis-resistant layer and the second hydrolysis-resistant layer, and the coordinated arrangement of the reinforcing layer, the first hydrolysis-resistant layer, the second hydrolysis-resistant layer and the connecting layer can enhance the stability of the synthetic structure and ensure its structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the intermediate layer of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the main body, middle layer and surface layer of the fabric of the utility model;

[0018] In the figure: 1. Fabric body; 2. Middle layer; 3. Surface layer; 4. First hydrolysis resistant layer; 5. Connecting layer; 6. Second hydrolysis resistant layer; 7. Connecting groove; 8. Connecting block; 9. Reinforcement layer; 10. Antistatic layer; 11. Wear-resistant layer. DETAILED DESCRIPTION

[0019] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] Example

[0021] like Figures 1 to 3 As shown, a hydrolysis-resistant polyurethane fabric comprises: a fabric body 1, an intermediate layer 2 is arranged on the outer side of the fabric body 1, and a surface layer 3 is arranged at one end of the intermediate layer 2 away from the fabric body 1;

[0022] The middle layer 2 is used to increase the hydrolysis resistance of the fabric body 1;

[0023] The surface layer 3 is used to increase the hydrophobicity of the fabric body 1 .

[0024] The middle layer 2 is composed of a first hydrolysis-resistant layer 4, a connecting layer 5 and a second hydrolysis-resistant layer 6. The first hydrolysis-resistant layer 4 is located on the outside of the fabric body 1, the connecting layer 5 is located on the end of the first hydrolysis-resistant layer 4 away from the fabric body 1, and the second hydrolysis-resistant layer 6 is located on the end of the connecting layer 5 away from the fabric body 1. When the fabric body 1 is in use, the hydrolysis resistance of the fabric body 1 can be increased through the middle layer 2 to prevent affecting the use of the fabric body 1.

[0025] The first hydrolysis-resistant layer 4 and the second hydrolysis-resistant layer 6 are both made of wet-process polyurethane materials, and the thickness of the first hydrolysis-resistant layer 4 and the second hydrolysis-resistant layer 6 are both 0.13-1.5 mm. The connecting layer 5 is a foaming layer. The first hydrolysis-resistant layer 4 and the second hydrolysis-resistant layer 6 are both made of wet-process polyurethane materials, so that the fabric body 1 has good hydrolysis resistance and aging resistance; the connecting layer 5 is formed by coating a mixed solution of polyurethane resin, dimethylformamide and calcium carbonate. The thickness of the foaming layer needs to be customized according to actual needs. The foaming layer plays the role of a structural skeleton, which solves the problem that most products in the prior art use ordinary polyester polyurethane with low quality and grade, general hydrolysis resistance, and poor hydrolysis resistance when immersed in water or exposed to moisture, which will cause a decrease in mechanical properties and poor hydrolysis and aging resistance.

[0026] A plurality of connecting grooves 7 are provided on both sides of the connecting layer 5 close to the first hydrolysis resistant layer 4 and the second hydrolysis resistant layer 6, and a plurality of connecting blocks 8 are provided on one end of the first hydrolysis resistant layer 4 and the second hydrolysis resistant layer 6 close to the connecting layer 5. The external structure size of the connecting block 8 is designed to correspond to the internal structure size of the connecting groove 7, and the connecting groove 7 and the connecting block 8 are connected in a limited position. When the first hydrolysis resistant layer 4 and the second hydrolysis resistant layer 6 are connected to the connecting layer 5, the connection stability can be increased by cooperating with the connecting groove 7 and the connecting block 8 to prevent displacement and loosening.

[0027] The first hydrolysis resistant layer 4 and the second hydrolysis resistant layer 6 are both provided with a reinforcing layer 9 at one end away from the connecting layer 5. The reinforcing layer 9 is made of polyester fibers woven into a mesh structure, and the thickness of the reinforcing layer 9 is 0.1-0.2 mm. The reinforcing layer 9 acts as a reinforcing rib on the first hydrolysis resistant layer 4 and the second hydrolysis resistant layer 6. The coordinated arrangement of the reinforcing layer 9, the first hydrolysis resistant layer 4 and the second hydrolysis resistant layer 6 and the connecting layer 5 can enhance the stability of the synthetic structure and ensure its structural strength.

[0028] The surface layer 3 is composed of an antistatic layer 10 and a wear-resistant layer 11. The antistatic layer 10 is located at the end of the second hydrolysis-resistant layer 6 away from the connecting layer 5, and the wear-resistant layer 11 is located at the end of the antistatic layer 10 away from the second hydrolysis-resistant layer 6. When the fabric body 1 is in use, the surface layer 3 can increase the waterproofness and wear resistance of the fabric body 1, thereby increasing the service life of the fabric body 1.

[0029] The wear-resistant layer 11 is made of emulsified wax, and the thickness of the wear-resistant layer 11 is 0.2-0.4mm. The interior of the antistatic layer 10 is filled with nano-scale activated carbon. The antistatic layer 10 can prevent the fabric body 1 from generating static electricity with the user, thereby ensuring the user's comfort. The filled activated carbon particles can play a deodorizing role, which can further increase the user's comfort experience. At the same time, the activated carbon can also be used to absorb the hydrolyzate on the surface of the fabric body 1 to prevent it from affecting the use of the fabric body 1. The emulsified wax coating can effectively improve the feel, wear resistance, and anti-sticking effects of the fabric body 1, thereby improving the wear resistance of the fabric body 1, preventing the surface from being damaged by long-term friction, causing water to enter the fabric body 1 and cause corrosion to the interior, thereby improving the service life of the fabric body 1.

[0030] Implementation scheme: In actual use, the first hydrolysis-resistant layer 4 and the second hydrolysis-resistant layer 6 are both made of wet-process polyurethane material, so that the fabric body 1 has good hydrolysis resistance and aging resistance; the connecting layer 5 is formed by coating with a mixed solution of polyurethane resin, dimethylformamide and calcium carbonate, and the thickness of the foaming layer needs to be customized according to actual needs. The foaming layer plays the role of a structural skeleton, which solves the problem that most products in the prior art use ordinary polyester polyurethane, which has low quality and grade, and general hydrolysis resistance. When immersed in water or exposed to moisture, it will cause the mechanical properties to decline and the hydrolysis and aging resistance to be poor. The reinforcing layer 9 plays the role of reinforcing ribs on the first hydrolysis-resistant layer 4 and the second hydrolysis-resistant layer 6, and the reinforcing layer 9 is matched with the first hydrolysis-resistant layer 4, the second hydrolysis-resistant layer 6 and the connecting layer 5. The combined arrangement can enhance the stability of the synthetic structure and ensure its structural strength. The antistatic layer 10 can prevent the fabric body 1 from generating static electricity with the user and ensure the user's comfort. The activated carbon particles filled can play a deodorizing role and can further increase the user's comfort experience. At the same time, the activated carbon can also be used to absorb the hydrolyzate on the surface of the fabric body 1 to prevent it from affecting the use of the fabric body 1. The emulsified wax coating can effectively improve the feel, wear resistance, and anti-sticking effects of the fabric body 1, thereby improving the wear resistance of the fabric body 1, preventing the surface from being damaged by long-term friction, causing water to enter the fabric body 1 and cause corrosion to the interior, thereby improving the service life of the fabric body 1. Compared with the existing polyurethane fabrics, the utility model can improve the overall practicality of the polyurethane fabric through design.

[0031] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A hydrolysis-resistant polyurethane fabric, characterized in that: include: A fabric body, an intermediate layer is arranged on the outer side of the fabric body, and a surface layer is arranged on one end of the intermediate layer away from the fabric body; The middle layer is used to increase the hydrolysis resistance of the main body of the fabric; The surface layer is used to increase the hydrophobicity of the main body of the fabric; The middle layer is composed of a first hydrolysis-resistant layer, a connecting layer and a second hydrolysis-resistant layer. The first hydrolysis-resistant layer is located on the outside of the fabric body, the connecting layer is located at one end of the first hydrolysis-resistant layer away from the fabric body, and the second hydrolysis-resistant layer is located at one end of the connecting layer away from the fabric body. The first hydrolysis-resistant layer and the second hydrolysis-resistant layer are both made of wet-process polyurethane material, and the thickness of the first hydrolysis-resistant layer and the second hydrolysis-resistant layer are both 0.13-1.5 mm, and the connecting layer is a foaming layer.

2. The hydrolysis-resistant polyurethane fabric according to claim 1, characterized in that: Multiple groups of connecting grooves are provided on both sides of the connecting layer close to the first hydrolysis resistant layer and the second hydrolysis resistant layer, and multiple groups of connecting blocks are provided on one end of the first hydrolysis resistant layer and the second hydrolysis resistant layer close to the connecting layer. The external structure size of the connecting block is designed to correspond to the internal structure size of the connecting groove.

3. The hydrolysis-resistant polyurethane fabric according to claim 1, characterized in that: A reinforcing layer is provided at one end of the first hydrolysis-resistant layer and the second hydrolysis-resistant layer away from the connecting layer. The reinforcing layer is made of a mesh structure of polyester fibers interwoven together, and the thickness of the reinforcing layer is 0.1-0.2 mm.

4. The hydrolysis-resistant polyurethane fabric according to claim 1, characterized in that: The surface layer consists of an antistatic layer and a wear-resistant layer. The antistatic layer is located at one end of the second hydrolysis-resistant layer away from the connecting layer, and the wear-resistant layer is located at one end of the antistatic layer away from the second hydrolysis-resistant layer.

5. The hydrolysis-resistant polyurethane fabric according to claim 4, characterized in that: The wear-resistant layer is made of emulsified wax, and the thickness of the wear-resistant layer is 0.2-0.4 mm. The interior of the antistatic layer is filled with nano-grade activated carbon.

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