CN101270833A

CN101270833A - Novel antimicrobial PE tube

Info

Publication number: CN101270833A
Application number: CNA2008100366120A
Authority: CN
Inventors: 尹惠
Original assignee: SHANGHAI RUIHE PIPE CO Ltd
Current assignee: SHANGHAI RUIHE PIPE CO Ltd
Priority date: 2008-04-25
Filing date: 2008-04-25
Publication date: 2008-09-24

Abstract

A novel antibacterial PE pipe relates to construction pipes. The outer layer is PE pipe. The invention is characterized in that the inner wall of the PE pipe is provided with a layer of inorganic antibacterial layer by co-extrusion. In the invention, the thickness of the pipe wall of the PE pipe is between 2mm and 10mm. The thickness of the inorganic antibacterial layer is between 0.3mm and 1.0mm. The invention has the beneficial effect that the novel antibacterial PE pipe integrates antibacterial property, energy saving, sanitation and self-cleaning, which can be directly applied to the transportation system of purified water. The invention is a novel green and environmentally-friendly construction material. The thermal coefficient is only 2 percent of the metal pipe and the hot-water pipe has excellent heat insulating and energy saving effects. Adopting the consubstantial hot melt connection, the tubes and the pipes have the advantages of no leakiness, high toughness and strong heat resistance and creep resistance. When used under normal pressure and temperature, the service life of the tubes and the pipes can be 50 years.

Description

A kind of novel antimicrobial PE tube

Technical field:

The present invention relates to building pipe, specifically a kind of novel antimicrobial PE tube.

Background technique:

Medical research shows, the human basic reason that produces disease, be since what virus of various harmful germs to due to the infringement of human body, some bad life habits of people's daily life institute stroke, our what condition of the complicated living environment of depending on for existence particularly, all might become what the viral infringement to human body of various harmful germs provides condition what chance, thereby harm humans health produces all diseases.

Along with the continuous development and the evolution of society, the numerous common people are to the quality of self life and the improvement of social living environment, particularly to the raising of the health perception of self health, and highly significant and urgent.How effectively to prevent and control various harmful viruses and germ to the infringement of self, improve the quality of living, guarantee healthyly, the demand that purifies a series of wonderful dreams such as living environment has become irresistible megatrend.The water everyday quoted of people particularly is because the low antibiotic property of conveyance conduit affects the healthy of people greatly.

Chinese at present municipal tubing market, plastic pipe are just in stable development, and PE pipe, PP-R pipe, UPVC pipe all occupy a tiny space, and wherein the powerful growth momentum of PE pipe attracts people's attention the most.The use field of PE pipe is extensive.Wherein supply pipe and fuel tube are two maximum application markets.The main material of EP pipe is the PE resin, be to be polymerized by monomer ethylene, owing to when polymerization,, can draw the resin of different densities, thereby the branch of high density polyethylene (HDPE), medium density polyethylene and low density polyethylene is arranged again because of polymeric reaction condition differences such as pressure, temperature.When the dissimilar PE tubing of processing, according to the difference of its application conditions, select the difference of the resin trade mark for use, also different to the requirement of extruder and mould simultaneously.We are divided into PE32, PE40, PE63, PE80, five grades of PE100 to the material of polyethylene pipe, and the material that is used for fuel tube and supply pipe mainly is PE80 and PE100.China does not have classification to the polyvinyl piping materials PP Pipe Compound, and this makes domestic polyethylene gas pipe and supply pipe manufacturer select relatively difficulty of raw material, has brought no small hidden danger also for the use of polyvinyl piping materials.Therefore National Bureau of Standards has done a large amount of revisions in the GB/T13663-2000 new standard, stipulated the different stage PE80 intensity of pressure corresponding different of supply pipe with PE100, and remove the tensile strength performance in the old standard, and increased elongation at break (greater than 350%), promptly emphasize basic toughness.Because supply pipe must bear certain pressure, to select usually that molecular weight is big, the PE resin of better mechanical property for use, as the HDPE resin.The tensile strength of LDPE resin is low, and is withstand voltage poor, poor rigidity, and poor dimensional stability during shaping operation, and connect difficulty, be not suitable for material as the feed pressure pipe.But because its sanitary index is higher, LDPE particularly LLDPE resin has become the common used material of producing drinking-water pipe.The melt viscosity of LDPE, LLDPE resin is little, good fluidity, and easily processing, thereby to the range of choice of its melt index also broad, MI is between 0.3-3g/10min usually.

Chinese patent 01261208.4 " two-layer compound PE pipe " discloses a kind of PE solid wall pipe and has been made of inside and outside two-layer PE pipe, and inside and outside double-layer tube wall connects closely, and colourless mother's internal layer PE pipe is close to the outer PE pipe that contains color masterbatch.But be not difficult to find out such PE pipe, complex manufacturing technology has been not suitable for the requirement of operating specification in the present aqueduct.

In conjunction with the characteristic of above-mentioned PE pipe, the present invention is being used for the further improvement of aqueduct to the PE pipe.

Summary of the invention:

Technical problem to be solved by this invention provides a kind of novel antimicrobial PE tube, to reach effect antibiotic in the potable water course of conveying.

The technical problem that the utility model solved can realize by the following technical solutions:

A kind of novel antimicrobial PE tube, outer for the PE pipe, it is characterized in that: be provided with one deck inorganic antibacterial layer by co-extrusion on the described PE inner tube wall.

In the utility model, described PE tube wall thickness is 2mm-10mm.

The thickness of described inorganic antibacterial layer is 0.3mm-1.0mm.

The novel a kind of novel antimicrobial PE tube collection of the present invention is antibiotic, energy-conservation, health, self-cleaning and one, can be directly used in the purified water transporting system, be a kind of building material of environmental protection health, and thermal conductivity only is 2% of a metal tube, the hot-water line heat preservation and energy conservation effects is splendid, pipe part adopts the homogeneity hot melt to connect, and combines Never-leakage together, tubing toughness height, heat-resisting strong with creep resistance, under normal pressure and temperature, to use, can reach 50 years working life.

Description of drawings:

Fig. 1 is a structural representation of the present invention;

Among the figure: 1-PE pipe layer, 2-inorganic antibacterial layer.

Embodiment:

Below in conjunction with drawings and the specific embodiments structure of the present invention and working principle are done further introduction.

Embodiment 1

As shown in Figure 1, a kind of novel antimicrobial PE tube, the outer PE of being manages layer 1, be provided with one deck inorganic antibacterial layer 2 by co-extrusion on PE pipe layer 1 inwall, inorganic antibacterial layer 2 slowly discharges the small amount of silver ion under the condition of pipeline humidity, because bacterium surface has negative charge, the silver ion that therefore has positive charge is attracted to bacterium surface, and then destroy its electrolyte balance, cause bacterium because cell is impaired and dead.Another viewpoint thinks that silver ion enters bacterium inside, with cell enzyme reaction and the chemical combination of bacterium, has suppressed activity of bacterium and the breeding regeneration of bacterium, reaches the effect of kill bacteria.

The IONPURE material that inorganic antibacterial layer 2 can adopt Japanese stoneman nitre Co., Ltd. to provide, it is effective ingredient with the silver ion, has the efficient wide biocidal efficacies of diving, nontoxic pollution-free, characteristics such as environmental protection, the inorganic antibacterial master batch that this antimicrobial agent is made is a kind of stable active gene, it can make pipe internal surface form active city, in active oxygen and the bacterial body dehydrogenase take place the city turn into and destroy its SH base, make bacterium energy metabolism can not take place and death, in 20 minutes, to the people enterobacteria, antibiotic rate all reached more than 99% after the antibiotic rate of staphylococcus aureus reached 93.66% and 91.73%, 24 hour.

In the present embodiment, PE pipe layer 1 pipe thickness is 2mm, and the thickness of inorganic antibacterial layer 2 is 0.3mm.

Embodiment 2

In the present embodiment, PE pipe layer 1 pipe thickness is 4mm, and the thickness of inorganic antibacterial layer 2 is 0.5mm.

Embodiment 3

In the present embodiment, PE pipe layer 1 pipe thickness is 6.2mm, and the thickness of inorganic antibacterial layer 2 is 0.7mm.

Embodiment 4

In the present embodiment, PE pipe layer 1 pipe thickness is 10mm, and the thickness of silver series inorganic antibiosis layer 2 is 1.0mm.

More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims

1. a novel antimicrobial PE tube is outer for the PE pipe, it is characterized in that: be provided with one deck inorganic antibacterial layer by co-extrusion on the described PE inner tube wall.

2. a kind of novel antimicrobial PE tube according to claim 1 is characterized in that: described PE tube wall thickness is 2mm-10mm.

3. a kind of novel antimicrobial PE tube according to claim 1 is characterized in that: the thickness of described inorganic antibacterial layer is 0.3mm-1.0mm.