CN209041785U - A kind of corrosion-resistant PVC-U multiple tube - Google Patents
A kind of corrosion-resistant PVC-U multiple tube Download PDFInfo
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- CN209041785U CN209041785U CN201821316453.5U CN201821316453U CN209041785U CN 209041785 U CN209041785 U CN 209041785U CN 201821316453 U CN201821316453 U CN 201821316453U CN 209041785 U CN209041785 U CN 209041785U
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- pvc
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- resistant coating
- ptfe
- erosion resistant
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Abstract
The utility model relates to plastic conduit fields, more specifically, a kind of corrosion-resistant PVC-U multiple tube is disclosed, which includes PTFE erosion resistant coating, intermediate adhesive layer, PVC-U main structural from inside to outside, and PTFE erosion resistant coating is bonded by intermediate adhesive layer with PVC-U main structural completely；The thickness of PTFE erosion resistant coating accounts for the 5%~15% of overall thickness.PTFE erosion resistant coating positioned at internal layer has stronger corrosion resistance, greatlys improve anti-highly basic, strong acid, halogenated hydrocarbons, ketones solvent or the ability of waste water corrosion of tubing.The contact angle of PTFE and water is 120 degree, so its resistance for conveying polar fluid and energy consumption will can be greatly reduced.The utility model cannot be only used for construction drainage, municipal drainage blowdown, be also applied to chemical industry, the feedstock transportation of pharmacy corporation and stain disease discharge etc..
Description
Technical field
The utility model relates to plastic conduit fields, more particularly, to a kind of corrosion-resistant PVC-U multiple tube.
Background technique
From the last century 50's since China's investment application, PVC-U tubing is due to its light weight, corrosion-resistant, cost
It is low, easily manufactured, be easy to construct, many merits such as the service life is long, be increasingly becoming construction and decoration, water supply and drainage, field irrigation, blowdown
The widely used preferred tubing in the fields such as water drainage.But since traditional PVC-U drainpipe chlorination degree is higher, molecule has
A degree of polarity, so the ability of the organic solvents such as its resistance to alkali corrosion, resistance to chlorinated hydrocabon, resistance to ketone corrosion is poor, it is unfavorable
In prolonging the service life.Therefore, a kind of stronger PVC-U tubing of corrosion resistance is studied to be of great significance.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above, it is multiple to provide a kind of corrosion-resistant PVC-U
Pipe is closed, is equipped with PTFE erosion resistant coating in pipe material inner wall, makes its anti-highly basic, strong acid, halogenated hydrocarbons, ketones solvent or the ability of waste water corrosion
It greatlys improve.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of corrosion-resistant PVC-U multiple tube, including PTFE erosion resistant coating from inside to outside, intermediate adhesive layer, PVC-U main structure
Layer, the PTFE erosion resistant coating are bonded by intermediate adhesive layer with PVC-U main structural completely；The thickness of the PTFE erosion resistant coating accounts for
The 5%~15% of overall thickness.
Preferably, the intermediate adhesive layer is compoiste adhering resin.
Preferably, the compoiste adhering resin is by Kynoar, the polar monomer of esters of acrylic acid, crosslinking agent, peroxide
Compound initiator, coupling agent composition.
Preferably, the PTFE erosion resistant coating is dispersed polytetrafluoroethylresin resin material.Polytetrafluoroethylene (PTFE) have antiacid alkali resistant,
The characteristics of resisting various organic solvents is practically insoluble in all solvents.The contact angle of PTFE and water is 120 degree.
Preferably, the forming method of the PTFE erosion resistant coating is propellant pushing forming.
Preferably, the thickness of the PVC-U main structural accounts for the 80%~90% of overall thickness.
Preferably, the thickness of the intermediate adhesive layer accounts for the 3%-6% of overall thickness.
Compared with prior art, the utility model has the beneficial effects that the utility model discloses a kind of corrosion-resistant PVC-U
Multiple tube, including PTFE erosion resistant coating, intermediate adhesive layer, PVC-U main structural from inside to outside, positioned at the PTFE erosion resistant coating of internal layer
With stronger corrosion resistance, make anti-highly basic, strong acid, halogenated hydrocarbons, ketones solvent or the ability of waste water corrosion of tubing greatly
It improves.The contact angle of PTFE and water is 120 degree, so its resistance for conveying polar fluid and energy consumption will can be greatly reduced.This reality
It cannot be only used for construction drainage, municipal drainage blowdown with novel, be also applied to the feedstock transportation of chemical industry, pharmacy corporation
With stain disease discharge etc..
Detailed description of the invention
Fig. 1 is the structural section figure of the utility model.
Wherein, 1PTFE erosion resistant coating, 2 intermediate adhesive layers, 3 PVC-U main structurals.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of positional relationship is described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model work is further specifically retouched
It states:
Embodiment 1
As shown in Figure 1, a kind of corrosion-resistant PVC-U multiple tube is present embodiments provided, including PTFE anti-corrosion from inside to outside
Layer 1, intermediate adhesive layer 2, PVC-U main structural 3, tight bond between three layers.The main component of PTFE erosion resistant coating 1 is that dispersion is poly-
Tetrafluoroethylene resin, forming method are propellant pushing forming.
PTFE erosion resistant coating 1 is bonded completely by intermediate adhesive layer 2 and PVC-U main structural 3, specifically, intermediate adhesive layer 2
For compoiste adhering resin, compoiste adhering resin is by Kynoar, the polar monomer of esters of acrylic acid, crosslinking agent, peroxide
Initiator, coupling agent composition.
The thickness that the thickness of PTFE erosion resistant coating 1 accounts for 5%, the PVC-U main structural 3 of overall thickness accounts for the 90% of overall thickness, centre
The thickness of adhesive layer 2 accounts for the 5% of overall thickness.
Specific manufacturing method is as follows:
Dispersed polytetrafluoroethylresin resin is used propellant pushing forming by S1 at normal temperature, and material chamber temperature is 30 DEG C~50
DEG C, die temperature be 50 DEG C~60 DEG C, push rate become smaller with the increase of caliber, accelerate with becoming smaller for wall thickness, then into
Row is dry, is sintered subsequent handling, forms 1 inner tube of PTFE erosion resistant coating.
S2 will be by the polar monomer of Kynoar, esters of acrylic acid, crosslinking agent, peroxide initiator, coupling agent group
At the compoiste adhering resin outer surface that squeezes out at 192 DEG C and be uniformly coated on PTFE erosion resistant coating 1.
PVC-U mixed ingredients are transported in high mixer and low mixed machine by concentration feeding system and carry out premix dehumidifying, taken off by S3
Except extra fugitive constituent, then in 190 DEG C of extrusion moldings, it is covered on formation PVC-U main structural 3 on compoiste adhering resin, with
PTFE erosion resistant coating 1 is bonded completely, finally carries out sizing, cooling, traction, mark, cutting, packaging etc..
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (7)
1. a kind of corrosion-resistant PVC-U multiple tube, it is characterised in that: including PTFE erosion resistant coating (1) from inside to outside, intermediate adhesive layer
(2), PVC-U main structural (3), the PTFE erosion resistant coating (1) are complete by intermediate adhesive layer (2) and PVC-U main structural (3)
Bonding；The thickness of the PTFE erosion resistant coating (1) accounts for the 5%~15% of overall thickness.
2. a kind of corrosion-resistant PVC-U multiple tube according to claim 1, it is characterised in that: the intermediate adhesive layer (2) is
Compoiste adhering resin.
3. a kind of corrosion-resistant PVC-U multiple tube according to claim 2, it is characterised in that: the compoiste adhering resin by
Kynoar, the polar monomer of esters of acrylic acid, crosslinking agent, peroxide initiator, coupling agent composition.
4. a kind of corrosion-resistant PVC-U multiple tube according to claim 1, it is characterised in that: the PTFE erosion resistant coating (1) is
Dispersed polytetrafluoroethylresin resin material.
5. a kind of corrosion-resistant PVC-U multiple tube according to claim 1, it is characterised in that: the PTFE erosion resistant coating (1)
Forming method is propellant pushing forming.
6. a kind of corrosion-resistant PVC-U multiple tube according to claim 1-5, it is characterised in that: the PVC-U master
The thickness of structure sheaf (3) accounts for the 80%~90% of overall thickness.
7. a kind of corrosion-resistant PVC-U multiple tube according to claim 6, it is characterised in that: the intermediate adhesive layer (2)
Thickness accounts for the 3%-6% of overall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821316453.5U CN209041785U (en) | 2018-08-15 | 2018-08-15 | A kind of corrosion-resistant PVC-U multiple tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821316453.5U CN209041785U (en) | 2018-08-15 | 2018-08-15 | A kind of corrosion-resistant PVC-U multiple tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041785U true CN209041785U (en) | 2019-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821316453.5U Active CN209041785U (en) | 2018-08-15 | 2018-08-15 | A kind of corrosion-resistant PVC-U multiple tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916491A (en) * | 2018-08-15 | 2018-11-30 | 联塑市政管道（河北）有限公司 | A kind of corrosion-resistant PVC-U multiple tube and its manufacturing method |
-
2018
- 2018-08-15 CN CN201821316453.5U patent/CN209041785U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916491A (en) * | 2018-08-15 | 2018-11-30 | 联塑市政管道（河北）有限公司 | A kind of corrosion-resistant PVC-U multiple tube and its manufacturing method |
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