CN203809884U

CN203809884U - Antibacterial PVC-U pipe

Info

Publication number: CN203809884U
Application number: CN201420251886.2U
Authority: CN
Inventors: 杨宝生; 王顺海
Original assignee: ZHEJIANG JINGWEI GROUP ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: ZHEJIANG JINGWEI GROUP ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2014-05-16
Filing date: 2014-05-16
Publication date: 2014-09-03
Anticipated expiration: 2024-05-16

Abstract

An antibacterial PVC-U pipe is composed of an outer-layer PVC-U pipe main body layer, a middle blocking layer and an inner-layer antibacterial layer. The middle blocking layer is made by a mixture of VDC (vinylidene chloride)-vinyl chloride copolymer and titanium dioxide, the inner-layer antibacterial layer is made by a PVC-U mixture added with an inorganic adsorbing agent and an organic antibacterial agent, thickness of the middle blocking layer is 5-20% of that of the pipe, and thickness of the inner-layer antibacterial layer is 10-25% of that of the pipe. The blocking layer can block light and oxygen from infiltrating into the pipe, the inorganic adsorbing agent can adsorb substances like heavy metal ions and ammoniacal nitrogen in water, and the organic antibacterial agent can effectively kill mycete, bacteria and the like in the water, so that delivered water is ensured to be nontoxic, safe and sanitary. The outer-layer PVC-U pipe main body layer, the middle blocking layer and the inner-layer antibacterial layer are formed integrally by extruding, so that the antibacterial PVC-U pipe is convenient to produce.

Description

A kind of antibacterial PVC-U tubing

Technical field

The utility model relates to plastic tube technical field, specifically a kind of antibacterial PVC-U tubing.

Background technique

PVC-U tubing has difficult combustion, corrosion-resistant, electrical insulating property is good, easy for installation, the features such as long service life, and low price, so in potable water water system, beverage, the sector applications such as drinks are extensive, but because the gas barrier property of PVC-U is not strong, in addition but in the time that water in pipe is mobile for a long time, in pipeline, can produce the harmful organisms such as a large amount of bacteriums, in pipeline, inevitably to use in addition some Metal fittings (as flowmeter, valve, pump etc.), just have a small amount of heavy metal ion releasing in water, after long-term use, the hygienic quality situation of carrying can be declined, bring adverse effect to user's health.

Summary of the invention

In order to solve the problems referred to above of prior art, the utility model adopts following technological scheme:

A kind of antibacterial PVC-U tubing, formed by outer PVC-U tubing body layer, intermediate barrier layer and internal layer antibiotic layer, the material of described intermediate barrier layer is VDC(vinylidene chloride) mixture of-vinyl chloride copolymer and titanium dioxide, described internal layer antibiotic layer is the PVC-U mixed ingredients that has added inorganic adsorbent and organic antibacterial agent, described intermediate barrier layer thickness is 5% ~ 20% of tubing thickness, and described internal layer antibiotic layer thickness is 10% ~ 25% of tubing thickness.

Described outer PVC-U tubing body layer, intermediate barrier layer, internal layer antibiotic layer are completely bonding by coextrusion mold.

Compared with prior art, the antibacterial PVC-U tubing of one that the utility model is related, adopting VDC(vinylidene chloride) mixture of-vinyl chloride copolymer and titanium dioxide is as barrier layer, good and the low price to the barriering effect of oxygen and light, barrier layer is arranged at the mesosphere of tubing, prevent humidity, the impact of the external environment conditions such as temperature and reduce the barrier property of barrier material, VDC(vinylidene chloride)-vinyl chloride copolymer and PVC compatibility good, can with internal layer antibiotic layer, outer PVC-U tubing body layer is combined closely, save binding resin, production technology is more simplified, cost-saving.Employing has been added the PVC-U mixed ingredients of inorganic adsorbent and organic antibacterial agent as antibiotic layer, organic antibacterial agent can effectively kill mould in water, bacterium, the material such as heavy metal ion, ammoniacal nitrogen in the adsorbable water of inorganic adsorbent, owing to there is no oxygen and nutriment, bacterium in water is just difficult to breeding, has fundamentally suppressed the generation of bacterium.

Brief description of the drawings

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

Wherein: 1, outer PVC-U tubing main body; 2, intermediate barrier layer; 3, internal layer antibiotic layer.

Embodiment

Referring to Fig. 1, the antibacterial PVC-U tubing of one of the present utility model, formed by outer PVC-U tubing body layer 1, intermediate barrier layer 2 and internal layer antibiotic layer 3, the material of described intermediate barrier layer 2 is VDC(vinylidene chloride) mixture of-vinyl chloride copolymer and titanium dioxide, described internal layer antibiotic layer 3 is for having added the PVC-U mixed ingredients of inorganic adsorbent and organic antibacterial agent, described intermediate barrier layer 2 thickness are 10% of tubing thickness, and described internal layer antibiotic layer 3 thickness are 15% of tubing thickness.Described outer PVC-U tubing body layer 1, intermediate barrier layer 2, internal layer antibiotic layer 3, by head and the once-through of composite dies co-extrusion altogether, in conjunction with firmly, are difficult for delamination between each layer.

As optimal way of the present utility model, described inorganic adsorbent is zeolite, and described organic antibacterial agent is potassium sorbate and diacetic acid disodium.

Above-described embodiment is only for example is clearly described, and the not restriction to mode of execution.To those of ordinary skill in the art, can also make other changes in different forms on the basis of the above description.And the apparent variation of being extended out thus or variation are still among protection domain of the present utility model.

Claims

1. an antibacterial PVC-U tubing, formed by outer PVC-U tubing body layer, intermediate barrier layer and internal layer antibiotic layer, the material of described intermediate barrier layer is VDC(vinylidene chloride) mixture of-vinyl chloride copolymer and titanium dioxide, described internal layer antibiotic layer is the PVC-U mixed ingredients that has added inorganic adsorbent and organic antibacterial agent, described intermediate barrier layer thickness is 5% ~ 20% of tubing thickness, and described internal layer antibiotic layer thickness is 10% ~ 25% of tubing thickness.

2. the antibacterial PVC-U tubing of one according to claim 1, is characterized in that: described outer PVC-U tubing body layer, intermediate barrier layer, internal layer antibiotic layer are completely bonding by coextrusion mold.