CN211821101U

CN211821101U - PPR composite pipeline

Info

Publication number: CN211821101U
Application number: CN201921840946.3U
Authority: CN
Inventors: 肖耿涛; 谢文杰; 章晓鹏; 杨先勇
Original assignee: Zhejiang Zhongcai Profiles Co ltd
Current assignee: Zhejiang Zhongcai Profiles Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-10-30
Anticipated expiration: 2029-10-30

Abstract

The utility model provides a PPR composite pipe, adopts three-layer composite construction, three-layer composite construction is by fluoropolymer function masterbatch and antibiotic masterbatch blending layer, PPR layer and fluoropolymer function masterbatch layer coextrusion extrusion moulding. The functional master batch of the fluorine-containing polymer is a blending granulating material of the fluorine-containing polymer and PPR, wherein the fluorine-containing polymer is a binary copolymer or a ternary copolymer of vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene, or one or more of copolymers of the vinylidene fluoride, the tetrafluoroethylene, the hexafluoropropylene and ethylene or propylene. The antibacterial master batch comprises an antibacterial active ingredient and a carrier, wherein the antibacterial active ingredient is one or a mixture of modified nano silver powder, silver ions and copper ions. The utility model discloses a breeding of bacterium, microorganism is inhibited to the pipeline inlayer, and the pipeline inlayer contains fluoropolymer function masterbatch simultaneously, makes the surface energy of inner wall lower, further improves interior wall finish, is unfavorable for adhering to of microorganism.

Description

PPR composite pipeline

Technical Field

The utility model relates to a plastic conduit field especially relates to a PPR composite pipe.

Background

After the conventional PPR water pipe is used for a long time, microorganisms can be attached to the inner wall of the pipe and even green algae can grow, so that the quality of water for residents is reduced, and more antibacterial technologies are applied to the aspect of water pipelines.

Meanwhile, the application of the fluoropolymer functional master batch in the aspect of pipelines is mature, and the fluoropolymer functional master batch is a copolymer of one or more fluorinated polyolefins or a copolymer of the fluorinated olefins and other olefins, such as vinylidene fluoride, tetrafluoroethylene, and a copolymer of hexafluoroethylene and ethylene or propylene. The fluoropolymer functional master batch utilizes the characteristic of low surface energy of the fluoropolymer, can reduce the internal friction among resin molecules in plastic processing, reduce the apparent viscosity of a melt and improve the total plasticizing effect; meanwhile, the fluorine-containing polymer moves towards the surface of the melt in the processing process and is attached to the metal surfaces of the screw and the machine barrel to form a layer of lubricating coating, and an isolating layer is formed on the metal surface to reduce the adhesion between the melt and the metal surface of the die orifice, improve the non-uniform movement state of the melt in the processing process and improve the smooth finish of the surface of a product.

Disclosure of Invention

In order to overcome the problems, the utility model provides a PPR composite pipeline which is beneficial to inhibiting the breeding of microorganisms.

The utility model adopts the technical proposal that: a PPR composite pipeline adopts a three-layer composite structure, wherein an inner layer is formed by blending three materials of PPR granules, fluoropolymer functional master batch and antibacterial master batch, a middle layer is a PPR layer, and an outer layer is a PPR granules and fluoropolymer functional master batch blending layer, and then three layers are formed by co-extrusion and extrusion.

Preferably, the fluoropolymer functional master batch is a blending extrusion granulating material of fluoropolymer and PPR, wherein the fluoropolymer is a binary copolymer or a ternary copolymer of vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene, or one or more of copolymers of vinylidene fluoride, tetrafluoroethylene, hexafluoropropylene and ethylene or propylene, and the fluoropolymer accounts for 3-8%.

Preferably, the antibacterial master batch comprises an antibacterial active ingredient and a carrier PPR, wherein the antibacterial active ingredient is one or a mixture of modified nano-silver powder, silver ions and copper ions, the antibacterial active ingredient accounts for 5-10%, and the PPR material accounts for 90-95%.

Preferably, the proportions of the PPR granules, the fluoropolymer functional master batch and the antibacterial master batch of the inner layer are as follows: 80-92% of PPR granules, 2-5% of fluoropolymer functional master batch and 6-15% of antibacterial master batch.

Preferably, the outer layer of the functional master batch layer of the fluoropolymer is a blended layer of PPR granules and the functional master batch of the fluoropolymer, wherein the PPR granules account for 98-99% and the functional master batch of the fluoropolymer accounts for 1-2%.

The utility model has the advantages that: the inner antibacterial layer inhibits the breeding of bacteria and microorganisms; the inner layer simultaneously contains the functional master batch of the fluorine-containing polymer, so that the surface energy of the inner wall is lower, and the smoothness of the inner wall is further improved, which is not beneficial to the attachment of microorganisms; the inner layer and the outer layer are co-extruded fluoropolymer functional master batch layers, the middle layer is a PPR material, and thus, the fluorine-containing material plays a role in lubrication in the die, which is beneficial to processing, reduces energy consumption and improves production rate.

Drawings

Fig. 1 is a schematic radial sectional structure of the present invention.

Description of reference numerals: 1. an inner layer; 2. an intermediate layer; 3. and (4) an outer layer.

Detailed Description

The invention will be further described with reference to specific examples, but the scope of protection of the invention is not limited thereto:

referring to the attached drawings, the PPR composite pipeline adopts a three-layer composite structure, the blending extrusion layer of PPR granules, fluoropolymer functional master batch and antibacterial master batch is an inner layer 3, the PPR layer is a middle layer 2, the blending extrusion layer of PPR granules and fluoropolymer functional master batch is an outer layer 1, and materials of the three-layer structure are formed through co-extrusion and extrusion.

The functional master batch of the fluorine-containing polymer is prepared by blending, extruding and granulating the fluorine-containing polymer and PPR, wherein the fluorine-containing polymer is prepared by blending and granulating a fluorine-containing material such as terpolymer of vinylidene fluoride, tetrafluoroethylene, hexafluoropropylene and the like and the PPR, and the fluorine-containing polymer accounts for 3-8%.

The antibacterial master batch comprises an antibacterial active ingredient and a carrier PPR, wherein the antibacterial active ingredient is one or a mixture of modified nano-silver powder, silver ions and copper ions, wherein the antibacterial active ingredient accounts for 5-10%, and the PPR material accounts for 90-95%.

The PPR granules, the fluorine-containing polymer functional master batch and the antibacterial master batch of the inner layer are prepared from the following three materials in proportion: 80-92% of PPR granules, 2-5% of fluoropolymer functional master batch and 6-15% of antibacterial master batch.

The outer layer of the functional master batch layer of the fluoropolymer is the proportion of the PPR granules and the blending layer of the functional master batch of the fluoropolymer, the PPR granules account for 98-99%, and the functional master batch of the fluoropolymer accounts for 1-2%.

The fluoropolymer used in the present invention is described in detail in "application research of fluoropolymer processing aid in polypropylene" of chemical intermediate 2011(09) ".

The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather by the claims and their equivalents.

Claims

1. The utility model provides a PPR composite conduit, adopts three-layer composite construction, its characterized in that: the three-layer composite structure is formed by co-extruding and extruding a fluorine-containing polymer functional master batch and antibacterial master batch blending layer, a PPR layer and a fluorine-containing polymer functional master batch layer; the blending layer of the fluoropolymer functional master batch and the antibacterial master batch is an inner layer, the PPR layer is a middle layer, and the fluoropolymer functional master batch layer is an outer layer.