阅读说明：本技术 一种多元复合管道 (Multi-element composite pipeline ) 是由 钱根 于 2020-12-07 设计创作，主要内容包括：本发明提供了一种多元复合管道,包括树脂层和增强层,所述树脂层包括内层树脂层和外层树脂层,所述树脂层位于增强层的两侧,呈三明治结构,所述增强层为纤维网外侧喷涂陶瓷涂层。本发明提供多元复合管道,利用树脂层外管和陶瓷涂层结合,将陶瓷高硬、不粘、耐蚀的优点与树脂层融合为一体,赋予复合材料制品优异的力学性能。(The invention provides a multi-element composite pipeline which comprises a resin layer and a reinforcing layer, wherein the resin layer comprises an inner resin layer and an outer resin layer, the resin layers are positioned on two sides of the reinforcing layer and are of a sandwich structure, and the reinforcing layer is a ceramic coating sprayed on the outer side of a fiber mesh. The invention provides a multi-element composite pipeline, which combines the outer pipe of a resin layer with a ceramic coating, integrates the advantages of high hardness, non-stick property and corrosion resistance of ceramic with the resin layer, and endows a composite product with excellent mechanical properties.)

1. the utility model provides a many first compound pipelines, its characterized in that, includes resin layer and enhancement layer, the resin layer includes inlayer resin layer and outer resin layer, the resin layer is located the both sides of enhancement layer, is sandwich structure, the enhancement layer is the fibre web outside spraying ceramic coating.

2. The multi-element composite pipe of claim 1, wherein: the resin layer is any one of PVC, PE or PC resin.

3. The multi-element composite pipe of claim 1, wherein: the reinforced layer fiber net is a nylon fiber net, the reinforced layer is formed by winding the nylon fiber net, the thickness of the fiber net is controlled to be 0.1mm-1mm, the fiber net is a plain porous fabric, and the cover tightness of the fiber net is 25-35%.

4. The multi-element composite pipe of claim 1, wherein: the enhancement layer is coated outside the inner resin layer in integral circles, two adjacent fiber nets are at different angles, and the angles of the two adjacent fiber nets are 45-90 DEG

5. The preparation method of the multi-element composite pipeline is characterized by comprising the following steps:

s1, melting and extruding a resin layer inner pipe on an extruder;

s2, winding a fiber net on the inner pipe of the resin layer according to a certain angle, spraying a ceramic coating after winding, and drying and curing the argil coating;

and S3, drying and curing the ceramic coating, performing surface treatment, and then performing co-extrusion coating on the outer pipe of the resin layer to obtain the multi-element pipe.

6. The method as claimed in claim 5, wherein the step S2 of spraying the ceramic coating comprises the steps of:

s1, dissolving ZrOCl.8H2O in an ethanol aqueous solution, mixing and stirring uniformly, gradually dropwise adding an anhydrous ethanol solution of ethyl orthosilicate, finally adding hydrochloric acid, and stirring to react to obtain a colorless silica gel solution;

s2, adding an absolute ethyl alcohol solution of butyl titanate into the silica gel solution, and uniformly stirring to obtain a clear sol;

s3, coating the sol on the outer side of the fiber web in a spin coating mode, and curing at a certain temperature.

7. The method as claimed in claim 6, wherein the curing temperature in step S3 is 100-150 ℃.

8. The method for preparing the multi-element composite pipe according to claim 5, wherein the surface treatment in the step S3 comprises the following steps: adding tetraethoxysilane and silane coupling agent into water, stirring uniformly, then adding acid solution, stirring, adding methyl methacrylate and dibenzoyl peroxide, stirring uniformly, and then coating on the outer side of the ceramic coating.

9. The method of claim 5, wherein the extruder for the outer tube of the resin layer in step S3 is a single screw extruder, and the temperatures of the heating zones of the extruder are 150 ℃, 170 ℃, 190 ℃ and 180 ℃ respectively.

Technical Field

The invention relates to the field of pipelines, in particular to a multi-element composite pipeline.

Background

With the continuous and rapid development of the economy of China, pipeline transportation plays an increasingly important role in the national economy, the national defense industry and the daily life of people, such as: the transportation of resources such as drinking water, natural gas, heating, petroleum and the like is of great importance to the development of national economy, and pipelines for the transportation of various fluids have also been rapidly developed since the 90 s of the 20 th century. The pipeline can be divided into a metal pipeline and a non-metal pipeline according to the material, the metal pipeline has the advantages of high temperature resistance, high pressure resistance, scratch resistance and the like, but has the defects of heaviness, uneasiness in bending, rough pipe wall, easiness in rusting, easiness in corroding and the like; the non-metal pipeline (such as a plastic pipeline) made of a single material can overcome a plurality of defects of the metal pipeline, but has the problems of low strength, poor scratch resistance, insufficient heat resistance and the like. In order to overcome the respective shortcomings of metal pipelines and plastic pipelines, various composite pipelines are produced. The reinforced thermoplastic composite pipeline with thermoplastic plastics as the inner layer and the outer layer and various reinforced materials as the core layer is a novel pipeline integrating the advantages of various pipelines, and is favored by the market from the beginning to the end because of the remarkable advantages of excellent performance, convenient transportation and installation, low maintenance cost and the like.

Disclosure of Invention

The technical problem to be solved is as follows: the invention aims to provide a multi-element composite pipeline, which combines the outer pipe of a resin layer with a ceramic coating, integrates the advantages of high hardness, non-sticking and corrosion resistance of ceramic with the resin layer, and endows a composite product with excellent mechanical properties.

The technical scheme is as follows: the utility model provides a many first composite pipe, includes resin layer and enhancement layer, the resin layer includes inlayer resin layer and outer resin layer, the resin layer is located the both sides of enhancement layer, is sandwich structure, the enhancement layer is the fibre web outside spraying ceramic coating.

Preferably, the resin layer is any one of PVC, PE or PC resin.

Preferably, the fiber net of the reinforcing layer is a nylon fiber net, the reinforcing layer is formed by winding the nylon fiber net, the thickness of the fiber net is controlled to be 0.1mm-1mm, the fiber net is a plain porous fabric, and the cover tightness of the fiber net is 25-35%.

Preferably, the reinforcing layer wraps the outer side of the inner resin layer in integral circles, two adjacent fiber nets form different angles, and the angle between the two adjacent fiber nets is 45-90 degrees.

A preparation method of a multi-element composite pipeline comprises the following steps:

s1, melting and extruding a resin layer inner pipe on an extruder;

s2, winding a fiber net on the inner pipe of the resin layer according to a certain angle, spraying a ceramic coating after winding, and drying and curing the argil coating;

and S3, drying and curing the ceramic coating, performing surface treatment, and then performing co-extrusion coating on the outer pipe of the resin layer to obtain the multi-element pipe. Preferably, the spraying of the ceramic coating in the step S2 includes the following steps:

s1, dissolving ZrOCl.8H2O in an ethanol aqueous solution, mixing and stirring uniformly, gradually dropwise adding an anhydrous ethanol solution of ethyl orthosilicate, finally adding hydrochloric acid, and stirring to react to obtain a colorless silica gel solution;

s2, adding an absolute ethyl alcohol solution of butyl titanate into the silica gel solution, and uniformly stirring to obtain a clear sol;

s3, coating the sol on the outer side of the fiber web in a spin coating mode, and curing at a certain temperature.

Preferably, the curing temperature in the step S3 is 100-150 ℃.

Preferably, the surface processing in step S3 includes the steps of: adding tetraethoxysilane and silane coupling agent into water, stirring uniformly, then adding acid solution, stirring, adding methyl methacrylate and dibenzoyl peroxide, stirring uniformly, and then coating on the outer side of the ceramic coating.

Preferably, the extruder for the outer tube of the resin layer in the step S3 is a single screw extruder, the temperatures of the heating zones of the extruder are 150 ℃, 170 ℃, 190 ℃, and the head temperature is 180 ℃.

Has the advantages that: the invention has the following advantages:

1. the nylon fiber net prepared by the invention replaces the conventional glass fiber or carbon fiber net, and the outer pipe and the inner pipe of the resin layer are reinforced by the combined action of the nylon fiber net and the ceramic coating, so that the pipeline is more economical, lighter and capable of bearing stronger axial stress;

2. the plastic pipe has limited heat resistance, and can not exceed 200 ℃, and the ceramic coating is cured at the low temperature of 100-150 ℃, so that the melting of resin can not occur, and the performance of the pipe is changed;

3. when the outer pipe of the resin layer and the ceramic coating are compounded, the surface of the ceramic coating is firstly compounded to enhance the interface bonding force of the ceramic and the metal, so that the advantages of high hardness, non-sticking and corrosion resistance of the ceramic are integrated with the resin layer, and the composite material product is endowed with excellent mechanical properties.

Detailed Description

Example 1

The utility model provides a many first compound pipelines, its characterized in that, includes resin layer and enhancement layer, the resin layer includes inlayer resin layer and outer resin layer, the resin layer is located the both sides of enhancement layer, is sandwich structure, the enhancement layer is the fibre web outside spraying ceramic coating, the resin layer is the PVC resin.

The reinforcing layer fiber net is a nylon fiber net, the reinforcing layer is formed by winding the nylon fiber net, the fiber net is a plain porous fabric, and the cover tightness of the fiber net is 25%.

Preferably, the reinforcing layer is wrapped 2 layers outside the inner resin layer.

A preparation method of a multi-element composite pipeline comprises the following steps:

s1, melting and extruding a resin layer inner pipe on an extruder;

s2, winding two adjacent fiber nets on the inner pipe of the resin layer according to an angle of 45 degrees, spraying a ceramic coating after winding, and drying and curing the argil coating, wherein the spraying of the ceramic coating comprises the following steps:

a. ZrOCl.8H₂Dissolving O in ethanol water solution, mixing and stirring uniformly, gradually dropwise adding anhydrous ethanol solution of ethyl orthosilicate, finally adding hydrochloric acid, and stirring for reaction to obtain colorless silica gel solution;

b. adding an absolute ethyl alcohol solution of butyl titanate into the silica gel solution, and uniformly stirring to obtain clear sol;

c. the sol is coated on the outer side of the fiber web by means of spin coating and is cured at 100 ℃.

And S3, drying and curing the ceramic coating, and then carrying out surface treatment, namely adding ethyl orthosilicate and a silane coupling agent into water, uniformly stirring, then adding an acid solution, adding methyl methacrylate and dibenzoyl peroxide after stirring, smearing the mixture on the outer side of the ceramic coating after uniformly stirring, and then carrying out co-extrusion coating on the outer pipe of the resin layer to obtain the multi-element pipe.

Example 2

The utility model provides a many first compound pipelines, its characterized in that, includes resin layer and enhancement layer, the resin layer includes inlayer resin layer and outer resin layer, the resin layer is located the both sides of enhancement layer, is sandwich structure, the enhancement layer is the fibre web outside spraying ceramic coating, the resin layer is the PC resin.

The reinforcing layer fiber net is a nylon fiber net, the reinforcing layer is formed by winding the nylon fiber net, the fiber net is a plain porous fabric, and the cover tightness of the fiber net is 35%.

Preferably, the reinforcing layer covers 1 layer outside the inner resin layer.

A preparation method of a multi-element composite pipeline comprises the following steps:

s1, melting and extruding a resin layer inner pipe on an extruder;

s2, winding two adjacent fiber nets on the inner pipe of the resin layer according to an angle of 90 degrees, spraying a ceramic coating after winding, and drying and curing the argil coating, wherein the spraying of the ceramic coating comprises the following steps:

a. ZrOCl.8H₂Dissolving O in ethanol water solution, mixing and stirring uniformly, gradually dropwise adding anhydrous ethanol solution of ethyl orthosilicate, finally adding hydrochloric acid, and stirring for reaction to obtain colorless silica gel solution;

b. adding an absolute ethyl alcohol solution of butyl titanate into the silica gel solution, and uniformly stirring to obtain clear sol;

c. the sol was applied to the outside of the web by spin coating and cured at 150 ℃.

And S3, drying and curing the ceramic coating, and then carrying out surface treatment, namely adding ethyl orthosilicate and a silane coupling agent into water, uniformly stirring, then adding an acid solution, adding methyl methacrylate and dibenzoyl peroxide after stirring, smearing the mixture on the outer side of the ceramic coating after uniformly stirring, and then carrying out co-extrusion coating on the outer pipe of the resin layer to obtain the multi-element pipe.

Example 3

The utility model provides a many first compound pipelines, its characterized in that, includes resin layer and enhancement layer, the resin layer includes inlayer resin layer and outer resin layer, the resin layer is located the both sides of enhancement layer, is sandwich structure, the enhancement layer is the fibre web outside spraying ceramic coating, the resin layer is the PVC resin.

The reinforcing layer fiber net is a nylon fiber net, the reinforcing layer is formed by winding the nylon fiber net into a fiber net which is a plain porous fabric, and the covering degree of the fiber net is 30%.

Preferably, the reinforcing layer is coated with 4 layers outside the inner resin layer.

A preparation method of a multi-element composite pipeline comprises the following steps:

s1, melting and extruding a resin layer inner pipe on an extruder;

s2, winding two adjacent layers of fiber nets on an inner pipe of the resin layer according to an angle of 60 degrees, spraying a ceramic coating after winding, and drying and curing the argil coating, wherein the spraying of the ceramic coating comprises the following steps:

a. ZrOCl.8H₂Dissolving O in ethanol water solution, mixing and stirring uniformly, gradually dropwise adding anhydrous ethanol solution of ethyl orthosilicate, finally adding hydrochloric acid, and stirring for reaction to obtain colorless silica gel solution;

b. adding an absolute ethyl alcohol solution of butyl titanate into the silica gel solution, and uniformly stirring to obtain clear sol;

c. the sol is coated on the outer side of the fiber web by means of spin coating and is cured at 120 ℃.

And S3, drying and curing the ceramic coating, and then carrying out surface treatment, namely adding ethyl orthosilicate and a silane coupling agent into water, uniformly stirring, then adding an acid solution, adding methyl methacrylate and dibenzoyl peroxide after stirring, smearing the mixture on the outer side of the ceramic coating after uniformly stirring, and then carrying out co-extrusion coating on the outer pipe of the resin layer to obtain the multi-element pipe.

Example 4

The utility model provides a many first compound pipelines, its characterized in that, includes resin layer and enhancement layer, the resin layer includes inlayer resin layer and outer resin layer, the resin layer is located the both sides of enhancement layer, is sandwich structure, the enhancement layer is the fibre web outside spraying ceramic coating, the resin layer is the PVC resin.

The reinforcing layer fiber net is a nylon fiber net, the reinforcing layer is formed by winding the nylon fiber net, the fiber net is a plain porous fabric, and the cover tightness of the fiber net is 25%.

Preferably, the reinforcing layer is coated with 3 layers outside the inner resin layer.

A preparation method of a multi-element composite pipeline comprises the following steps:

s1, melting and extruding a resin layer inner pipe on an extruder;

s2, winding two adjacent fiber nets on the inner pipe of the resin layer according to an angle of 90 degrees, spraying a ceramic coating after winding, and drying and curing the argil coating, wherein the spraying of the ceramic coating comprises the following steps:

a. ZrOCl.8H₂Dissolving O in ethanol water solution, mixing and stirring uniformly, gradually dropwise adding anhydrous ethanol solution of ethyl orthosilicate, finally adding hydrochloric acid, and stirring for reaction to obtain colorless silica gel solution;

b. adding an absolute ethyl alcohol solution of butyl titanate into the silica gel solution, and uniformly stirring to obtain clear sol;

c. the sol was applied to the outside of the web by spin coating and cured at 130 ℃.

And S3, drying and curing the ceramic coating, and then carrying out surface treatment, namely adding ethyl orthosilicate and a silane coupling agent into water, uniformly stirring, then adding an acid solution, adding methyl methacrylate and dibenzoyl peroxide after stirring, smearing the mixture on the outer side of the ceramic coating after uniformly stirring, and then carrying out co-extrusion coating on the outer pipe of the resin layer to obtain the multi-element pipe.

Comparative example 1

The utility model provides a many first compound pipelines, its characterized in that, includes resin layer and enhancement layer, the resin layer includes inlayer resin layer and outer resin layer, the resin layer is located the both sides of enhancement layer, is sandwich structure, the enhancement layer is the fibre web outside spraying ceramic coating, the resin layer is the PVC resin.

The fiber net of the reinforced layer is a glass fiber net, the fiber net formed by winding the reinforced layer through the glass fiber net is a plain porous fabric, and the covering degree of the fiber net is 30%.

Preferably, the reinforcing layer is coated with 4 layers outside the inner resin layer.

A preparation method of a multi-element composite pipeline comprises the following steps:

s1, melting and extruding a resin layer inner pipe on an extruder;

s2, winding two adjacent layers of fiber nets on an inner pipe of the resin layer according to an angle of 60 degrees, spraying a ceramic coating after winding, and drying and curing the argil coating, wherein the spraying of the ceramic coating comprises the following steps:

a. ZrOCl.8H₂Dissolving O in ethanol water solution, mixing and stirring uniformly, gradually dropwise adding anhydrous ethanol solution of ethyl orthosilicate, finally adding hydrochloric acid, and stirring for reaction to obtain colorless silica gel solution;

b. adding an absolute ethyl alcohol solution of butyl titanate into the silica gel solution, and uniformly stirring to obtain clear sol;

c. the sol is coated on the outer side of the fiber web by means of spin coating and is cured at 120 ℃.

And S3, drying and curing the ceramic coating, and then carrying out surface treatment, namely adding ethyl orthosilicate and a silane coupling agent into water, uniformly stirring, then adding an acid solution, adding methyl methacrylate and dibenzoyl peroxide after stirring, smearing the mixture on the outer side of the ceramic coating after uniformly stirring, and then carrying out co-extrusion coating on the outer pipe of the resin layer to obtain the multi-element pipe.

Comparative example 2

The utility model provides a many first compound pipelines, its characterized in that, includes resin layer and enhancement layer, the resin layer includes inlayer resin layer and outer resin layer, the resin layer is located the both sides of enhancement layer, is sandwich structure, the resin layer is the PVC resin.

The reinforcing layer fiber net is a nylon fiber net, the reinforcing layer is formed by winding the nylon fiber net, the fiber net is a plain porous fabric, and the cover tightness of the fiber net is 25%.

Preferably, the reinforcing layer is coated with 3 layers outside the inner resin layer.

A preparation method of a multi-element composite pipeline comprises the following steps:

s1, melting and extruding a resin layer inner pipe on an extruder;

s2, winding two adjacent layers of fiber nets on the inner pipe of the resin layer according to an angle of 90 degrees;

and S3, co-extruding and coating the outer pipe of the resin layer to obtain the multi-element pipe.

The pipes prepared in the examples and comparative examples were tested for their performance according to the national standard, and the specific properties are given in the following table: