PVC fiber reinforced hose

Abstract

The utility model discloses a PVC (polyvinyl chloride) fiber reinforced hose, which relates to the technical field of hoses and comprises a PVC base layer, a fiber reinforced layer is arranged on the upper side of the PVC base layer, and a weather-proof protective layer is arranged on one side, far away from the PVC base layer, of the fiber reinforced layer. According to the utility model, the environment-friendly plasticizer, the high-temperature-resistant stabilizer and the solvent-resistant assistant are added into the PVC base layer, so that the problems that the traditional PVC material is narrow in temperature-resistant range and easy to be eroded by a strong solvent and the plasticizer has environmental protection and migration risks are solved, and the PVC base layer has better high-temperature resistance, solvent resistance and environmental protection performance; the fiber reinforced layer adopts a high-strength fiber woven mesh, the weaving density is improved, and meanwhile, a high-performance binder is used for bonding with other layers, so that the compressive strength and the fatigue resistance of the fiber reinforced layer are greatly improved, and the phenomena of delamination and fracture under long-term high pressure or pulse pressure are effectively avoided; the arrangement of the weather-proof protective layer further enhances the weather-proof performance of the composite structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hose technical field especially relates to a PVC fiber reinforced hose. BACKGROUND

[0002] The PVC fiber reinforced hose is a flexible pipe material which is composed of polyvinyl chloride as inner and outer layer material and embedded fiber reinforced layer in the middle, and the fiber layer improves the pressure resistance, tensile strength and structural stability, and the PVC has chemical resistance, weather resistance and good flexibility, and the main role is reflected in the low pressure fluid conveying scene, such as industrial field conveying water, oil, chemical liquid and compressed air, agricultural irrigation and pesticide spraying, building temporary water supply and drainage, household gardening watering and automobile cleaning etc.

[0003] But in the prior art, the main material PVC itself has a narrow temperature resistance range, and the molecular structure is easily eroded by strong solvent, and the addition of plasticizer improves the flexibility but brings environmental protection and migration risk; the fiber reinforced layer mostly uses ordinary polyester fiber, and the weaving density or bonding process is insufficient, so that the compression strength and fatigue resistance are limited, and the fiber reinforced layer is easily delaminated and fractured under long-term high pressure or pulse pressure. UTILITY MODEL CONTENT

[0004] The utility model discloses a PVC fiber reinforced hose which solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a PVC fiber reinforced hose, comprising a PVC base layer, a fiber reinforced layer is arranged on the upper side of the PVC base layer, and a weather-resistant protective layer is arranged on the side of the fiber reinforced layer away from the PVC base layer; the PVC base layer comprises a PVC matrix, the PVC matrix is uniformly dispersed with an environmentally-friendly plasticizer, and the PVC matrix is additionally provided with a high-temperature-resistant stabilizer and a solvent-resistant additive; the fiber reinforced layer comprises a high-strength fiber woven net, the high-strength fiber woven net is woven with aramid fiber or glass fiber, the weaving density of the high-strength fiber woven net is 10-15 fibers per square centimeter, and the high-strength fiber woven net is bonded with the PVC base layer and the weather-resistant protective layer through a high-performance bonding agent; the weather-resistant protective layer is an acrylic resin coating or a polyvinylidene fluoride coating.

[0006] Preferably, the weaving density of the high-strength fiber woven net of the fiber reinforced layer in the warp direction and the weft direction is the same, and is 10-15 fibers per square centimeter.

[0007] Preferably, the thickness of the PVC base layer is 0.3-0.5mm, the thickness of the fiber reinforced layer is 0.2-0.3mm, and the thickness of the weather-resistant protective layer is 0.1-0.2mm.

[0008] Preferably, the adhesive layer between the high-strength fiber woven net and the PVC base layer and the weather-resistant protective layer is uniform in thickness and has a thickness of 0.05-0.1mm.

[0009] Preferably, the high-strength fiber woven net of the fiber reinforced layer is woven by using a plain weave process, and the warp yarn and the weft yarn are interwoven at 90°.

[0010] Compared with the prior art, the utility model has the advantages and positive effects that:

[0011] 1、The utility model discloses a PVC fiber reinforced hose, which comprises a PVC base layer, a fiber reinforced layer and a weather-resistant protective layer. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 A three-dimensional structure schematic diagram of the PVC fiber reinforced hose is provided for the utility model.

[0013] Fig. 2 A cross-sectional structure schematic diagram of the PVC fiber reinforced hose is provided for the utility model.

[0014] Legend: 1, PVC base layer; 2, fiber reinforced layer; 3, weather-resistant protective layer. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described below in combination with the drawings and embodiments.

[0016] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiments disclosed in the following description.

[0017] Embodiment: as Figs. 1-2The utility model provides a kind of PVC fiber reinforced hose, including PVC base layer 1, the upper and lower sides of PVC base layer 1 are provided with fiber reinforced layer 2, the side of fiber reinforced layer 2 away from PVC base layer 1 is provided with weather protection layer 3, PVC base layer 1 includes PVC matrix, and PVC matrix is uniformly dispersed with environmental protection type plasticizer, environmental protection type plasticizer uses citric acid ester plasticizer, PVC matrix is additionally provided with high-temperature resistant stabilizer and solvent-resistant auxiliary agent, high-temperature resistant stabilizer is organic tin stabilizer, and solvent-resistant auxiliary agent is acrylic ester copolymer;

[0018] The weaving density of the high-strength fiber woven net of the fiber reinforced layer 2 is the same in the warp and weft directions, and is 10-15 fibers per square centimeter, the thickness of the PVC base layer 1 is 0.3-0.5 mm, the thickness of the fiber reinforced layer 2 is 0.2-0.3 mm, the thickness of the weather protection layer 3 is 0.1-0.2 mm, the adhesive layer between the high-strength fiber woven net and the PVC base layer 1 and the weather protection layer 3 is uniform in thickness, and the thickness is 0.05-0.1 mm, the high-strength fiber woven net of the fiber reinforced layer 2 adopts plain weave process, and the warp yarn and the weft yarn are interwoven at 90°.

[0019] The fiber reinforced layer 2 includes a high-strength fiber woven net, the high-strength fiber woven net is woven from aramid fiber or glass fiber, the weaving density of the high-strength fiber woven net is 10-15 fibers per square centimeter, the high-strength fiber woven net is bonded to the PVC base layer 1 and the weather protection layer 3 through a high-performance adhesive, the high-performance adhesive is an epoxy resin adhesive, and the weather protection layer 3 is an acrylic resin coating or a polyvinylidene fluoride coating.

[0020] Now the specific settings and effects of the embodiment will be described in detail, by adding environmental protection type plasticizer, high-temperature resistant stabilizer and solvent-resistant auxiliary agent in the PVC base layer 1, the problems of narrow temperature resistance range, easy to be eroded by strong solvent and environmental protection and migration risk of plasticizer in traditional PVC materials are solved, so that the PVC base layer 1 has better high-temperature resistance, solvent resistance and environmental protection performance. The fiber reinforced layer 2 uses high-strength fiber woven net and improves the weaving density, and uses high-performance adhesive to bond with other layers, which greatly improves the compressive strength and fatigue resistance of the fiber reinforced layer 2, effectively avoiding the phenomenon of delamination and fracture under long-term high pressure or pulse pressure. The setting of the weather protection layer 3 further enhances the weather resistance of the composite structure, so that it can be stably used in various harsh environments, prolonging the service life of the overall structure.

[0021] The method of using and working principle of the device: in use, the environmentally friendly plasticizer in the PVC base layer 1 ensures the flexibility of the material, and due to its environmental protection and low migration, it reduces the harm to the human body and the environment; the high temperature resistant stabilizer improves the high temperature resistance of the PVC base layer 1, so that it can be used in a higher temperature environment; the solvent resistant additive enhances the resistance of the PVC base layer 1 to strong solvents.

[0022] The high-strength fiber woven net of the fiber reinforced layer 2 improves the compressive strength and fatigue resistance of the entire composite structure by virtue of its high weaving density and high-strength fiber material, and the high-performance adhesive ensures the close combination between the layers. The weather-resistant protective layer 3 effectively resists the erosion of external environmental factors, protects the internal structure, and prolongs the service life of the composite structure.

[0023] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments shall still fall within the protection scope of the present application.

Claims

1. A PVC fiber-reinforced hose comprising a PVC base layer (1), characterized in that: The upper side of the PVC base layer (1) is provided with a fiber reinforced layer (2), and the side of the fiber reinforced layer (2) away from the PVC base layer (1) is provided with a weather-resistant protective layer (3); The PVC base layer (1) comprises a PVC matrix, the PVC matrix is uniformly dispersed with an environmentally-friendly plasticizer, and the PVC matrix is further added with a high-temperature resistant stabilizer and a solvent-resistant additive; the fiber reinforced layer (2) comprises a high-strength fiber woven net, the high-strength fiber woven net is woven by aramid fiber or glass fiber, the weaving density of the high-strength fiber woven net is 10-15 fibers per square centimeter, and the high-strength fiber woven net is bonded with the PVC base layer (1) and the weather-resistant protective layer (3) through a high-performance adhesive; and the weather-resistant protective layer (3) is an acrylic resin coating or a polyvinylidene fluoride coating.

2. The PVC fiber-reinforced flexible hose according to claim 1, characterized in that: The weaving density of the high-strength fiber woven net of the fiber reinforced layer (2) in the warp direction and the weft direction is the same, and is 10-15 fibers per square centimeter.

3. The PVC fiber-reinforced flexible hose according to claim 1, characterized in that: The thickness of the PVC base layer (1) is 0.3-0.5 mm, the thickness of the fiber reinforced layer (2) is 0.2-0.3 mm, and the thickness of the weather-resistant protective layer (3) is 0.1-0.2 mm.

4. The PVC fiber-reinforced flexible hose according to claim 1, characterized in that: The adhesive layer between the high-strength fiber woven net and the PVC base layer (1) and the weather-resistant protective layer (3) is uniform in thickness, and the thickness is 0.05-0.1 mm.

5. The PVC fiber-reinforced flexible hose according to claim 1, characterized in that: The high-strength fiber woven net of the fiber reinforced layer (2) adopts a plain weave process, and the warp yarn and the weft yarn are interwoven at 90°.

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