CN205065066U - Thermal -insulated high molecular weight polyethylene tubular product of reinforcing compound incubation - Google Patents

Abstract

The utility model relates to the field of macromolecular materials, in particular to a reinforced composite thermal insulation high molecular weight polyethylene pipe; comprising an inner core tube formed by high molecular weight polyethylene resin, and a reinforcing layer arranged on the outer layer of the inner core tube, wherein the reinforcing layer The outer layer is also provided with an oxygen barrier layer, wherein the oxygen barrier layer is coated with a thermal insulation layer formed by a resin and an outer layer formed by a functional modified resin coating; the pipe high molecular weight polyethylene resin of the utility model is used as the inner core The pipe is used to ensure its excellent performance; the resin with thermal insulation and heat insulation properties is selected as the insulation layer, which blocks the heat exchange inside and outside the pipe during the transportation process, and ensures that the internal temperature of the pipe is not affected by the external environment. EVOH material is used As an oxygen barrier layer, it ensures that oxygen will not infiltrate into the pipe body to oxidize and corrode the metal connecting parts in the pipe. The reinforced layer is used to make the pipe material more durable and corrosion-resistant. The pipe material manufactured by the utility model has the characteristics of heat preservation, heat insulation and oxygen resistance. , can be widely used in field open-air transportation.

Description

A reinforced composite thermal insulation high molecular weight polyethylene pipe

technical field

The utility model relates to the field of macromolecular materials, in particular to a reinforced composite thermal insulation high molecular weight polyethylene pipe.

Background technique

Polyethylene pipes are mostly used for water supply and drainage because of their good material properties, and polyethylene pipes for water supply are made of high-density polyethylene resin as a raw material and processed by a composite basic molding process. Due to its corrosion resistance , non-scaling, high flexibility, long service life and other advantages, it is widely used in various pipeline projects such as municipal water supply, drainage, petroleum, chemical industry, mining, farmland irrigation, sewage discharge, landfill, etc. Polyethylene water supply pipes are generally Extrude the blue strip on the black tube to improve the anti-ultraviolet and anti-aging properties, but the performance of the polyethylene tube decreases rapidly with the increase of temperature, and when the tube is exposed to sunlight in the air, it will accelerate aging and shorten Therefore, it is necessary to prevent direct sunlight during transportation and storage. Moreover, oxygen molecules can easily pass through the plastic pipe and penetrate into the water in the pipe, which will accelerate the corrosion of some metal parts in the system. Therefore, there is an urgent need to develop a series of pipes for reinforced engineering pipelines. On the basis of retaining the advantages of traditional reinforced pipes, they have better engineering performance to meet the comprehensive requirements of environmental conditions.

Contents of the invention

Aiming at the problems existing in the use of reinforced pipes in special environments, the utility model provides a reinforced composite thermal insulation ultra-high molecular weight polyethylene pipe. The following is a specific technical solution: a reinforced composite thermal insulation high molecular weight polyethylene pipe, It includes an inner core tube formed by high molecular weight polyethylene resin, a reinforcement layer arranged on the outer layer of the inner core tube, wherein the outer layer of the reinforcement layer is also provided with an oxygen barrier layer, and the oxygen barrier layer is coated with a thermal insulation layer formed by resin and functional Modified resin coats the outer layer of the overmolding.

The reinforcement layer includes a reinforcement layer formed by cross-winding reinforcement fibers from left to right.

Further, the reinforcing layer includes a reinforcing layer formed by weaving reinforcing fibers.

Further, the oxygen barrier layer includes an oxygen barrier layer made of EVOH material, and is evenly wrapped around the reinforcement layer.

Further, the polymer polyethylene resin used in the inner core tube is processed by extrusion molding technology.

Further, the resin of the thermal insulation layer has low thermal conductivity, and has thermal insulation and thermal insulation properties.

Beneficial effects: the high molecular weight polyethylene resin of the pipe of the utility model is used as the inner core pipe, and it is processed by extrusion molding technology to ensure its excellent performance; the resin with heat preservation and heat insulation performance is selected as the heat preservation layer, which blocks The heat exchange inside and outside the pipeline during the transportation process ensures that the internal temperature conditions of the pipeline are not affected by the external environment. The EVOH material is used as an oxygen barrier layer to ensure that oxygen will not penetrate into the pipeline and oxidize and corrode the metal connecting parts in the pipeline. The layer makes the pipe more durable and corrosion-resistant. The pipe manufactured by the utility model has the characteristics of heat preservation, heat insulation and oxygen resistance, and can be widely used in outdoor transportation.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among them: 1. Inner core tube 2. Reinforcing layer 3. Oxygen barrier layer 4. Thermal insulation layer 5. Outer layer.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings of the description.

A reinforced composite heat-insulating high-molecular-weight polyethylene pipe, comprising an inner core tube 1 formed of high-molecular-weight polyethylene resin, and a reinforcing layer 2 arranged on the outer layer of the inner core tube, wherein the outer layer of the reinforcing layer is also provided with an oxygen barrier layer 3 , wherein the oxygen barrier layer is externally coated with resin to form an insulating layer 4 and an outer layer 5 is overmolded with a functional modified resin coating.

The reinforcement layer includes a reinforcement layer 2 formed by cross-winding reinforcement fibers from left to right.

Further, the reinforcing layer includes a reinforcing layer 2 formed by weaving reinforcing fibers.

A single pipe material has the effect of enhancing performance by setting the reinforcement layer made of reinforcement fiber, and has higher strength and better corrosion resistance.

Further, the oxygen barrier layer 3 includes an oxygen barrier layer formed of EVOH material, and is evenly wrapped around the reinforcement layer. EVOH material is a kind of high barrier material, which has excellent barrier to gas and excellent processability, and has excellent transparency, gloss, mechanical strength, stretchability, wear resistance, cold resistance and surface strength. EVOH as the raw material of the oxygen barrier layer can make the pipe have a high degree of oxygen barrier, so that the pipe will not be oxidized and corroded due to the entry of oxygen.

Further, the polymer polyethylene resin used in the inner core tube 1 is processed by extrusion molding technology.

Further, the resin of the insulation layer 4 has a low thermal conductivity, has thermal insulation and heat insulation properties, blocks the heat exchange inside and outside the pipeline during the transportation process, and ensures that the internal temperature conditions of the pipeline are not affected by the external environment.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements can also be made. It should be regarded as the protection scope of the present utility model.

Claims (5)

1. A reinforced composite heat-insulating high-molecular-weight polyethylene pipe, characterized in that, the pipe comprises an inner core pipe formed by high-molecular-weight polyethylene resin, and is arranged on a reinforcing layer on the outer layer of the inner core pipe, wherein the outer layer of the reinforcing layer The layer is also provided with an oxygen-blocking layer, wherein the oxygen-blocking layer is externally coated with a thermal insulation layer formed by a resin and an outer layer overmolded by a functional modified resin coating. 2. A kind of reinforced composite thermal insulation high molecular weight polyethylene pipe according to claim 1, characterized in that, the reinforced layer includes a reinforced layer formed by reinforcing fibers cross-wound left and right or formed by reinforcing fibers weaving enhancement layer. 3. A kind of reinforced composite thermal insulation high molecular weight polyethylene pipe material according to claim 1, it is characterized in that, described oxygen-barrier layer comprises the oxygen-barrier layer that forms with EVOH material, and is wrapped in the reinforced layer evenly external. 4. A reinforced composite thermal insulation high-molecular-weight polyethylene pipe according to claim 1, characterized in that the high-molecular polyethylene resin used in the inner core pipe is processed by extrusion molding technology. 5. A kind of reinforced composite thermal insulation high molecular weight polyethylene pipe according to claim 1, characterized in that the resin of the thermal insulation layer has low thermal conductivity and has thermal insulation and thermal insulation properties.