Corrosion-resistant and high-temperature-resistant heat shrink tube

Abstract

The utility model discloses an anti-corrosion high-temperature-resistant heat shrink tube which comprises a heat shrink tube base layer, and a plurality of reinforcing ribs are arranged on the outer end face of the heat shrink tube base layer in the circumferential direction at equal intervals. A filling layer is arranged on the inner surface of the heat shrink tube base layer, and an insulation shielding layer, an anti-radiation layer, an anti-corrosion layer and an outer protection layer are sequentially arranged on the outer surfaces of the heat shrink tube base layer and the reinforcing ribs from inside to outside. A plurality of reinforcing ribs are designed on the heat shrink tube, so that the strength of the heat shrink tube can be improved, and the heat shrink tube is not easy to bend and break during use, thereby ensuring the insulation protection effect on a protected product; the hot melt adhesive is designed in the base layer of the heat-shrinkable tube, the hot melt adhesive is melted during heating, pores and gaps are filled, and the waterproof performance can be improved; in addition, the insulation shielding layer, the radiation-proof layer, the anti-corrosion layer and the outer protection layer are designed on the surface of the base layer of the heat shrink tube, so that the heat shrink tube has excellent radiation-proof and anti-corrosion performance, can be used in radiation and corrosion environments, and is safer in use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat shrink tube technical field, concretely is a kind of anticorrosive high temperature resistant heat shrink tube. BACKGROUND

[0002] Heat shrink tube is a kind of high temperature shrinkage, soft flame-retardant, insulation anticorrosion function, widely used in the insulation protection of various wire harness, welding point, inductance.

[0003] The current heat shrink tube is widely used, and the protected products are often used in environments that are bent for a long time or need to be pulled back and forth frequently. The heat shrink tube is easily worn out, which can cause the heat shrink tube to bend or even break, thereby affecting the protection effect of the product. In addition, when the current heat shrink tube is used in high temperature environment and corrosion environment, the service life of the heat shrink tube itself will be greatly reduced, and the heat shrink tube needs to be replaced frequently, which increases the maintenance frequency and also increases the overall maintenance cost.

[0004] Therefore, an anticorrosive high temperature resistant heat shrink tube is provided. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of anticorrosive high temperature resistant heat shrink tubes, to solve the problem proposed above, provide a kind of anticorrosive high temperature resistant heat shrink tube.

[0006] The technical scheme adopted by the utility model is as follows: an anticorrosive high temperature resistant heat shrink tube, comprising a heat shrink tube base layer, a plurality of reinforcing ribs with the same spacing are arranged on the outer end surface of the heat shrink tube base layer in a circumferential direction.

[0007] The inner surface of the heat shrink tube base layer is provided with a filling layer, and the outer surfaces of the heat shrink tube base layer and the reinforcing ribs are sequentially provided with an insulating shielding layer, a radiation-proof layer, an anti-corrosion layer and an outer protective layer from inside to outside.

[0008] In a preferred embodiment, the reinforcing ribs are integrally formed with the heat shrink tube base layer, and the lengths of the reinforcing ribs and the heat shrink tube base layer are consistent.

[0009] In a preferred embodiment, the heat shrink tube base layer and the reinforcing ribs are both made of fluororubber material, and the thickness of the reinforcing ribs is 2 / 3 of the thickness of the heat shrink tube base layer.

[0010] In a preferred embodiment, the filling layer is made of hot melt adhesive material, and the thickness of the filling layer is 1 / 3 of the thickness of the heat shrink tube base layer.

[0011] In a preferred embodiment, the insulating shielding layer is a coating layer formed by coating a semi-conductive material, and the thickness of the insulating shielding layer is 1-2 μm.

[0012] In a preferred embodiment, the radiation-proof layer is a layer of silver-plated reflective film, and the thickness of the silver-plated reflective film is 1-2 μm.

[0013] In a preferred embodiment, the anti-aging layer is formed by liquid drying and heat solidification, and the thickness of the anti-aging layer is 1-2.5 μm.

[0014] In a preferred embodiment, the outer protective layer is composed of a PET main body and aluminum particles evaporated in the PET main body, and the thickness of the protective layer is 0.6-1.4 μm.

[0015] In summary, due to the adoption of the above technical solutions, the present application has the following beneficial effects:

[0016] 1. In the present application, the plurality of reinforcing ribs designed on the surface of the heat shrink tube can improve the strength of the heat shrink tube itself, and the heat shrink tube is not easy to be bent and broken during use, thereby ensuring the insulation protection effect on the protected product.

[0017] 2. In the present application, the hot melt glue is designed in the heat shrink tube base layer, and the hot melt glue is melted when heated, thereby filling the pores and gaps and improving the waterproof performance and sealing effect.

[0018] 3. In the present application, the insulation shielding layer, the anti-radiation layer, the anti-corrosion layer and the outer protective layer are designed on the surface of the heat shrink tube base layer, so that the heat shrink tube has excellent anti-radiation and anti-corrosion performance, and can be used in the environment with radiation and corrosion, thereby making the use safer. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 Fig. 1 is a schematic structural diagram of the whole application;

[0020] Fig. 2 Fig. 2 is a schematic diagram of the layered cross-sectional plane structure of the whole application.

[0021] Marked in the figure: 1-heat shrink tube base layer, 101-outer protective layer, 102-insulation shielding layer, 103-anti-radiation layer, 104-anti-corrosion layer, 2-filling layer, 3-reinforcing rib. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0023] Reference Figs. 1-2The application relates to a kind of anticorrosion high-temperature resistant heat shrinkable tube, including heat shrinkable tube base layer 1, the outer end surface of heat shrinkable tube base layer 1 is circumferentially provided with a plurality of reinforcing ribs 3 with same spacing, a plurality of reinforcing ribs 3 are designed on heat shrinkable tube base layer 1, which can improve the strength of heat shrinkable tube itself, and the heat shrinkable tube is not easy to bend and break during use, thereby guaranteeing the insulation protection effect on the protected product.

[0024] Further, the inner surface of the heat shrinkable tube base layer 1 is provided with a filling layer 2, and the outer surface of the heat shrinkable tube base layer 1 and the reinforcing ribs 3 is sequentially provided with an insulating shielding layer 102, an anti-radiation layer 103, an anti-corrosion layer 104 and an outer protective layer 101 from inside to outside, the insulating shielding layer 102, the anti-radiation layer 103, the anti-corrosion layer 104 and the outer protective layer 101 are designed on the surface of the heat shrinkable tube base layer 1, so that the heat shrinkable tube has excellent anti-radiation and anti-corrosion performance, and can be used in environments with radiation and corrosion, making the use more safe.

[0025] Further, the reinforcing ribs 3 are integrally formed with the heat shrinkable tube base layer 1, and the length of the reinforcing ribs 3 is consistent with that of the heat shrinkable tube base layer 1, since the reinforcing ribs 3 are integrally formed, no additional manufacturing process is required for the whole, and the cost of the whole will not increase much while the strength is guaranteed.

[0026] Further, the heat shrinkable tube base layer 1 and the reinforcing ribs 3 are both made of fluororubber material, and the thickness of the reinforcing ribs 3 is 2 / 3 of that of the heat shrinkable tube base layer 1, the fluororubber has excellent high and low temperature resistance, acid and alkali resistance, oil resistance and radiation resistance, so that it can be applied in high-temperature and corrosive environments, and the use is safer.

[0027] Further, the filling layer 2 is made of hot melt adhesive material, and the thickness of the filling layer 2 is 1 / 3 of that of the heat shrinkable tube base layer 1, the hot melt adhesive is designed in the heat shrinkable tube base layer 1, and the hot melt adhesive melts when heated, filling the pores and gaps, which can improve the waterproof and sealing performance, and dust and foreign matters are not easy to enter the connection through the gaps, thereby improving the protection effect on the product.

[0028] Further, the insulating shielding layer 102 is a coating layer formed by coating a semi-conductive material, and the thickness of the insulating shielding layer 102 is 1-2 mu, the added semi-conductive material can reduce the local discharge phenomenon during later use, thereby reducing the corresponding insulation breakdown, and the use is safer.

[0029] Further, the anti-radiation layer 103 is a layer of silver-plated reflective film, the thickness of the silver-plated reflective film is 1-2 mu, and the silver-plated reflective film is composed of a polyester film main body and a silver layer distributed on the polyester film main body, the silver-plated reflective film has the characteristic of reflecting electromagnetic waves, so that the anti-radiation effect of the heat shrinkable tube is better.

[0030] Further, the anti-corrosion layer 104 is formed by anti-aging liquid drying and heat curing, and the thickness of the anti-corrosion layer 104 is 1-2.5 mu.

[0031] The anti-aging liquid is formed by proportioning styrene-acetylene copolymer, polyurethane resin, diphenyl sulfide, scandium oxide and water, the styrene-acetylene copolymer in the anti-aging liquid can improve the corrosion resistance and surface hardness of the heat shrinkable tube, the polyacrylate is mainly used for not affecting the light transmittance, the polyurethane resin is used for improving the toughness of the heat shrinkable tube and can improve the high temperature resistance of the heat shrinkable tube in cooperation with the styrene-acetylene copolymer, and the diphenyl sulfide has the function of inhibiting ultraviolet, and can significantly improve the weather resistance of the heat shrinkable tube.

[0032] It should be noted that the number average molecular weight of the styrene-acetylene copolymer is 2300-2500 g / mol, and the content of acetylene in the styrene-acetylene copolymer is 17-19 wt%, the number average molecular weight of the polyacrylate is 3100-3300 g / mol, and the number average molecular weight of the polyurethane resin is 1600-1800 g / mol.

[0033] Further, the outer protective layer 101 is composed of a PET main body and aluminum particles evaporated in the PET main body, the thickness of the outer protective layer 101 is 0.6-1.4 μm, and the aluminum particles evaporated in the outer protective layer 101 can improve the overall strength and wear resistance of the outer protective layer 101, thereby prolonging the service life of the heat shrinkable tube.

[0034] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A corrosion-resistant and high-temperature resistant heat shrink tubing, comprising a heat shrink tubing base layer, characterized in that: The outer end face of the heat shrink tubing base layer is provided with multiple reinforcing ribs with the same spacing in the circumferential direction. The inner surface of the heat shrink tubing base layer is provided with a filling layer, and the outer surfaces of the heat shrink tubing base layer and the reinforcing rib are provided with an insulating shielding layer, a radiation protection layer, an anti-corrosion layer and an outer protective layer from the inside to the outside.

2. The corrosion-resistant and high-temperature resistant heat shrink tubing as described in claim 1, characterized in that: The reinforcing rib is integrally formed with the heat shrink tubing base layer, and the length of the reinforcing rib is the same as that of the heat shrink tubing base layer.

3. The corrosion-resistant and high-temperature resistant heat shrink tubing as described in claim 1, characterized in that: Both the heat shrink tubing base layer and the reinforcing rib are made of fluororubber material, and the thickness of the reinforcing rib is 2 / 3 of the thickness of the heat shrink tubing base layer.

4. The corrosion-resistant and high-temperature resistant heat shrink tubing as described in claim 1, characterized in that: The filler layer is made of hot melt adhesive material, and the thickness of the filler layer is 1 / 3 of the thickness of the heat shrink tubing base layer.

5. The corrosion-resistant and high-temperature resistant heat shrink tubing as described in claim 1, characterized in that: The insulating shielding layer is a coating formed by coating a semi-conductive material, and the thickness of the insulating shielding layer is 1~2μm.

6. The corrosion-resistant and high-temperature resistant heat shrink tubing as described in claim 1, characterized in that: The radiation shielding layer is a silver-plated reflective film with a thickness of 1~2μm.

7. The corrosion-resistant and high-temperature resistant heat shrink tubing as described in claim 1, characterized in that: The anti-corrosion layer is formed by drying and thermosetting an anti-aging liquid, and the thickness of the anti-corrosion layer is 1~2.5μm.

8. The corrosion-resistant and high-temperature resistant heat shrink tubing as described in claim 1, characterized in that: The outer protective layer is composed of a PET body and aluminum particles vapor-deposited in the PET body, and the thickness of the protective layer is 0.6~1.4μm.

Images