CN219621121U

CN219621121U - Compound type tearing-resistant TPU film

Info

Publication number: CN219621121U
Application number: CN202321061086.XU
Authority: CN
Inventors: 顾世杰
Original assignee: Suzhou Gaolian Industrial Technology Co ltd
Current assignee: Suzhou Gaolian Industrial Technology Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-09-01
Anticipated expiration: 2033-05-06

Abstract

The utility model relates to the technical field of TPU (thermoplastic polyurethane), in particular to a composite tearing-resistant TPU film, which comprises a polyurethane base layer and a first nylon film layer, wherein the first nylon film layer is arranged at the bottom of the polyurethane base layer; the device is provided with the first bonding layer between the polyurethane base layer and the first nylon membrane layer and the second bonding layer between the second nylon membrane layer and the foaming layer, so that the polyurethane base layer and the first nylon membrane layer are bonded into a whole, the whole strength of the polyurethane base layer and the foaming layer are improved, the deformation capacity is improved, and the whole impact resistance is effectively improved.

Description

Compound type tearing-resistant TPU film

Technical Field

The utility model relates to the technical field of TPU (thermoplastic polyurethane), in particular to a composite tearing-resistant TPU film.

Background

TPU is known by the name thermoplastic polyurethane elastomer rubber. The polyurethane elastomer is a relatively special class in the elastomer, the hardness range of the polyurethane elastomer is very wide, the performance range is very wide, so the polyurethane elastomer is a class of high molecular material between rubber and plastic, can be heated and plasticized, has no or little crosslinking in chemical structure, has basically linear molecules, but has certain physical crosslinking, and is called TPU;

however, at present, many TPU materials are of a single-layer film structure, and when a large fixing force is applied, the single-layer film is broken, so that a composite tearing-resistant TPU film is designed;

secondly, when the TPU film is used for bonding cloth, glue is required to be additionally used for bonding, so that convenience is not facilitated, dust is easy to be stained when the TPU film is used for bonding cloth, and the cloth bonding effect is poor;

therefore, we propose a new compound type anti-tearing TPU film to solve the problem that the TPU material proposed by the background art is of a single-layer film structure, when receiving great fixing force, the single-layer film is broken, glue is required to be additionally used for pasting, convenience is not facilitated, dust is easy to be stained when the TPU film is adhered to cloth, and the cloth adhesion effect is poor.

Disclosure of Invention

The utility model aims to provide a composite tearing-resistant TPU film, which aims to solve the problems that the TPU material proposed by the background technology is of a single-layer film structure, the single-layer film is broken when a large fixing force is applied, glue is required to be additionally used for adhesion, convenience is not facilitated, dust is easy to be polluted when the TPU film is adhered to cloth, and the cloth adhesion effect is poor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the composite tearing-resistant TPU film comprises a polyurethane base layer and a first nylon film layer, wherein the first nylon film layer is arranged at the bottom of the polyurethane base layer;

the polyurethane base layer is characterized in that a first bonding layer is arranged between the polyurethane base layer and the first nylon membrane layer, an elastic layer is fixedly arranged at the bottom of the first nylon membrane layer, a foaming layer is fixedly arranged at the bottom of the elastic layer, a second nylon membrane layer is fixedly arranged at the bottom of the foaming layer, a second bonding layer is arranged between the second nylon membrane layer and the foaming layer, a hot melt adhesive layer is fixedly arranged at the bottom of the second nylon membrane layer, and a protective membrane layer is arranged at the bottom of the hot melt adhesive layer in a laminating mode.

Preferably, nylon cloth layers are arranged on the surface layers of the first nylon cloth film layer and the second nylon cloth film layer, and the lengths of the first nylon cloth film layer and the second nylon cloth film layer are consistent.

Preferably, the first adhesive layer and the second adhesive layer are both made of TPU adhesive, and the thickness of the first adhesive layer is the same as that of the second adhesive layer.

Preferably, the polyurethane base layer is internally filled with temperature-resistant particles uniformly arranged at equal intervals, and the temperature-resistant particles are made of polyethylene temperature-resistant particles.

Preferably, the elastic layer is made of TPE and POE, and the thickness of the elastic layer is smaller than that of the foaming layer.

Preferably, the surface of the foaming layer is coated with a nano silver ion layer, and the thickness of the foaming layer is larger than the sum of the thicknesses of the elastic layer and the second bonding layer.

Preferably, the size of the hot melt adhesive layer is consistent with that of the protective film layer, and the thickness of the hot melt adhesive layer is larger than that of the protective film layer.

Compared with the prior art, the utility model has the beneficial effects that:

1. the composite tearing-resistant TPU film has the advantages that the first bonding layer is arranged between the polyurethane base layer and the first nylon membrane layer, the second bonding layer is arranged between the second nylon membrane layer and the foaming layer, so that the polyurethane base layer and the first nylon membrane layer are bonded into a whole, the integral strength of the composite tearing-resistant TPU film is improved in a composite mode, the deformation capacity is improved, the integral impact resistance is effectively improved, other series of physical properties such as cracking and cracking are not easy to generate, nylon cloth layers are arranged on the surface layers of the first nylon membrane layer and the second nylon membrane layer, the nylon cloth layers can effectively isolate and prevent permeation, and the integral service life can be effectively prolonged in the use process.

2. Secondly, this kind of compound type anti-tear TPU membrane is provided with the protection rete through setting up hot melt adhesive layer bottom laminating, this TPU complex film is when using, the user tears the protection rete of hot melt adhesive layer earlier and abandons, bond after heating hot melt with the hot melt adhesive layer again, the setting of protection rete, make this TPU complex film when placing for a long time, prevent that hot melt adhesive layer surface from being stained with the dust, thereby guarantee the bonding effect when bonding with the cloth, the setting of hot melt adhesive layer, make this TPU complex film can be directly just can bond on the cloth after the hot melt adhesive layer heats hot melt when using, need not additionally to use glue, further guarantee the convenience of its use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic overall side elevational view of the present utility model;

FIG. 3 is a schematic representation of the polyurethane infrastructure of the present utility model;

FIG. 4 is a schematic view of the structure of a first adhesive layer of the present utility model;

in the figure: 1. a polyurethane base layer; 101. temperature resistant particles; 2. a first nylon membrane layer; 3. a first adhesive layer; 4. an elastic layer; 5. a foaming layer; 501. a nano silver ion layer; 6. a second nylon membrane layer; 7. a second adhesive layer; 8. a hot melt adhesive layer; 9. and a protective film layer.

Description of the embodiments

Referring to fig. 1-2, in an embodiment of the present utility model;

example 1: a composite tear resistant TPU film comprising; the polyurethane base layer 1 and the first nylon membrane layer 2, wherein the first nylon membrane layer 2 is arranged at the bottom of the polyurethane base layer 1;

the polyurethane adhesive is characterized in that a first adhesive layer 3 is arranged between a polyurethane base layer 1 and a first nylon membrane layer 2, an elastic layer 4 is fixedly arranged at the bottom of the first nylon membrane layer 2, a foaming layer 5 is fixedly arranged at the bottom of the elastic layer 4, a second nylon membrane layer 6 is fixedly arranged at the bottom of the foaming layer 5, a second adhesive layer 7 is arranged between the second nylon membrane layer 6 and the foaming layer 5, a hot melt adhesive layer 8 is fixedly arranged at the bottom of the second nylon membrane layer 6, and a protective membrane layer 9 is adhered to the bottom of the hot melt adhesive layer 8;

nylon cloth layers are arranged on the surface layers of the first nylon cloth film layer 2 and the second nylon cloth film layer 6, and the lengths of the first nylon cloth film layer 2 and the second nylon cloth film layer 6 are consistent;

the first adhesive layer 3 and the second adhesive layer 7 are made of TPU adhesive, and the thicknesses of the first adhesive layer 3 and the second adhesive layer 7 are the same;

the polyurethane base layer 1 is internally filled with temperature resistant particles 101 which are uniformly arranged at equal intervals, and the temperature resistant particles 101 are made of polyethylene temperature resistant particles;

the elastic layer 4 is made of TPE and POE, and the thickness of the elastic layer 4 is smaller than that of the foaming layer 5;

the surface of the foaming layer 5 is coated with a layer of nano silver ion layer 501, and the thickness of the foaming layer 5 is larger than the sum of the thicknesses of the elastic layer 4 and the second bonding layer 7;

the polyurethane base layer 1 and the first nylon membrane layer 2 are provided with a first bonding layer 3 and a second bonding layer 7 between the second nylon membrane layer 6 and the foaming layer 5 so as to be bonded into a whole, so that the integral strength of the polyurethane base layer is improved, the deformation capacity is improved, the integral shock resistance is effectively improved, cracking and other series of physical properties are not easy to generate, nylon cloth layers are arranged on the surface layers of the first nylon membrane layer 2 and the second nylon membrane layer 6, the nylon cloth layers can effectively play a role of isolation and permeation prevention, and the integral service life can be effectively prolonged in the use process;

the nylon cloth layer has the advantages that the nylon cloth layer is light nylon fabric with favorable strength-weight ratio and small tearing and is difficult to spread, and the tearing resistance of the composite TPU film is enhanced by adopting the cross-hatched pattern interweaved tearing-resistant reinforcing lines;

the polyurethane base layer 1 is internally filled with temperature resistant particles 101 which are uniformly arranged at equal intervals, and the temperature resistant particles 101 are made of polyethylene temperature resistant particles, so that the integral temperature resistance of the polyurethane base layer can be effectively improved;

the elastic layer 4 is made of TPE and POE, and the TPE and the POE have good elasticity, so that the overall elasticity of the TPU composite film can be effectively enhanced, the TPU composite film is ensured to have good stretchability, and the TPU composite film has better fit with human skin;

the surface of the foaming layer 5 is coated with a layer of nano silver ion layer 501, the nano silver ion layer 501 has a good antibacterial and bactericidal effect, the surface of the foaming layer 5 can not grow mildew when the TPU film is placed for a long time, and meanwhile, the surface of the foaming layer 5 is in direct contact with human skin when the TPU film is used, so that a good antibacterial effect can be achieved.

Example 2: as can be seen by referring to fig. 2 to 4 of the specification, embodiment 2 differs from embodiment 1 in that: the bottom of the hot melt adhesive layer 8 is provided with a protective film layer 9 in a bonding way, the hot melt adhesive layer 8 and the protective film layer 9 are consistent in size, and the thickness of the hot melt adhesive layer 8 is larger than that of the protective film layer 9;

the protection film layer 9 is attached to the bottom of the hot melt adhesive layer 8, when the TPU composite film is used, a user firstly tears off the protection film layer 9 of the hot melt adhesive layer 8, then carries out adhesion after heating and hot melting the hot melt adhesive layer 8, and the protection film layer 9 is arranged, so that the TPU composite film can prevent dust from being stained on the surface of the hot melt adhesive layer when being placed for a long time, and the adhesion effect when being adhered with cloth is ensured;

the hot melt adhesive layer 8 is arranged, so that the TPU composite film can be directly bonded on cloth after being heated and hot melted, and the convenience of use of the TPU composite film is further ensured without using glue additionally.

Claims

1. The composite tearing-resistant TPU film comprises a polyurethane base layer (1) and a first nylon film layer (2), wherein the first nylon film layer (2) is arranged at the bottom of the polyurethane base layer (1);

the polyurethane adhesive comprises a polyurethane base layer (1) and a first nylon membrane layer (2), wherein a first adhesive layer (3) is arranged between the polyurethane base layer (1) and the first nylon membrane layer (2), an elastic layer (4) is fixedly arranged at the bottom of the first nylon membrane layer (2), a foaming layer (5) is fixedly arranged at the bottom of the elastic layer (4), a second nylon membrane layer (6) is fixedly arranged at the bottom of the foaming layer (5), a second adhesive layer (7) is arranged between the second nylon membrane layer (6) and the foaming layer (5), a hot melt adhesive layer (8) is fixedly arranged at the bottom of the second nylon membrane layer (6), and a protective membrane layer (9) is arranged at the bottom of the hot melt adhesive layer (8) in a bonding mode.

2. A composite tear resistant TPU film according to claim 1 wherein: nylon cloth layers are arranged on the surface layers of the first nylon cloth film layer (2) and the second nylon cloth film layer (6), and the lengths of the first nylon cloth film layer (2) and the second nylon cloth film layer (6) are consistent.

3. A composite tear resistant TPU film according to claim 1 wherein: the first bonding layer (3) and the second bonding layer (7) are both made of TPU adhesive, and the thicknesses of the first bonding layer (3) and the second bonding layer (7) are the same.

4. A composite tear resistant TPU film according to claim 1 wherein: the polyurethane base layer (1) is internally filled with temperature resistant particles (101) which are uniformly arranged at equal intervals, and the temperature resistant particles (101) are made of polyethylene temperature resistant particles.

5. A composite tear resistant TPU film according to claim 1 wherein: the elastic layer (4) is made of TPE and POE, and the thickness of the elastic layer (4) is smaller than that of the foaming layer (5).

6. A composite tear resistant TPU film according to claim 1 wherein: the surface of the foaming layer (5) is coated with a layer of nano silver ion layer (501), and the thickness of the foaming layer (5) is larger than the sum of the thicknesses of the elastic layer (4) and the second bonding layer (7).

7. A composite tear resistant TPU film according to claim 1 wherein: the size of the hot melt adhesive layer (8) is consistent with that of the protective film layer (9), and the thickness of the hot melt adhesive layer (8) is larger than that of the protective film layer (9).