CN103133787A - Nano-antibacterial polyethylene tubular product and preparation method thereof - Google Patents
Nano-antibacterial polyethylene tubular product and preparation method thereof Download PDFInfo
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- CN103133787A CN103133787A CN 201110373064 CN201110373064A CN103133787A CN 103133787 A CN103133787 A CN 103133787A CN 201110373064 CN201110373064 CN 201110373064 CN 201110373064 A CN201110373064 A CN 201110373064A CN 103133787 A CN103133787 A CN 103133787A
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Abstract
The invention discloses a nano-antibacterial polyethylene tubular product and a preparation method thereof. The nano-antibacterial polyethylene tubular product comprises a polyethylene plastic outer layer (1) and a nano-antibacterial inner layer (2). The preparation method of the nano-antibacterial polyethylene tubular product comprises the following steps of adding nano-antibacterial master batch in polyethylene resin according to the weight of 1-15% of polyethylene, using a blender to evenly mix, conducting fusion heating, obtaining a mixture of polyethylene plastic of the nano-antibacterial master batch and using the nano-antibacterial master batch to prepare the nano-antibacterial inner layer; then conducting synchronous coextrusion on the nano-antibacterial polyethylene plastic and common polyethylene plastic and preparing the tubular product wrapping the polyethylene plastic outer layer and an nano-antibacterial inner layer; and finally sizing and cooling. The nano-antibacterial polyethylene tubular product has the advantages of being simple in production process, easy to prepare, good in heat resistance, free of dirty forming, resisting to corrosion, light in weight, attractive in appearance, small in running water resistance and the like, having antibacterial action, being capable of being used for environments and media such as purified water, drink, foods and cold and hot water supply pipes.
Description
Technical field
The present invention relates to a kind of polyvinyl piping materials, especially nano-antibacterial polyvinyl piping materials and preparation method thereof.
Background technique
Polyethylene is owing to having outstanding premium properties, its copolymerization of propylene and tubing are used widely in chemical building material, and its purposes has: health with tubing, feedwater and hot water system tubing, industrial tubing, the animals and plants garden of drinking with tubing, thermal water tubing and solar house warm water tube etc.The PP-R pipe has obtained large development since producing and use the nineties, product is mainly used in building hot water or cold water system, potable water system and board-like (comprising the floor) heating system.
The energy consumption of PP-R pipe is only 20% of steel pipe, and its thermal conductivity is low, is only also 1/200 of steel pipe, is used for hot water pipeline system heat preservation and energy conservation effects splendid, but with general heater unit than energy efficient 20%.The encrustation that uses the PP-R pipe to remove to use Coating Steel Pipe to cause, get rusty and the water quality " secondary pollution " that causes.Because the PP-R inner tube wall is smooth, non-corrosive, non-scaling are so fluid resistance is little.The serviceability temperature of PP-R pipe reaches 70 ℃, and the short-term serviceability temperature can reach 95 ℃, is that 60～70 ℃, working pressure are under the 1.0MPa condition in serviceability temperature, uses continuously for a long time, and the life-span can reach 50 years.
Although existing polyvinyl piping materials can reach health and healthy basic demand in the market, can not kill and remove the harmful bacteria in water, water quality is exerted an influence, and then threaten people's health.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of good heat resistance, non-scaling, corrosion-resistant, use nano-antibacterial polyvinyl piping materials of safety and preparation method thereof, its production technology is simple, preparation easily, lightweight, appearance looks elegant, flowing water resistance are little.
Purpose of the present invention is achieved through the following technical solutions: the nano-antibacterial polyvinyl piping materials, and it comprises polyvinyl plastics skin and nano-antibacterial internal layer, and wherein, antibiotic internal layer evenly is added with the nano-class antibacterial masterbatch, and the thickness of described nano-antibacterial internal layer is:
(1) during nominal outside diameter≤32mm, thickness 〉=0.25mm;
(2) during 40mm＜nominal outside diameter≤63mm, thickness 〉=0.30mm;
(3) during 75mm＜nominal outside diameter≤90mm, thickness 〉=0.5mm;
(4) during nominal outside diameter 〉=110mm, thickness 〉=1.0mm.
The preparation method of nano-antibacterial polyvinyl piping materials is characterized in that: it comprises the following steps:
A, by 1～15% of polyethylene weight, the nano-class antibacterial masterbatch is added in polyethylene resin, mix with stirrer, carry out the melting heating, obtain the mixture of the polyvinyl plastics of nano-antibacterial masterbatch, for the preparation of the nano-antibacterial internal layer;
B, make the polyvinyl plastics that contains nano-antibacterial synchronize co-extrusion with the common polythene plastics, be prepared into the tubing that comprises the outer and nano-antibacterial internal layer of polyvinyl plastics;
C, the typing cooling.
Nano-antibacterial masterbatch preparation process is as follows:
Simultaneously add in nano antibacterial agent with the low molecular weight polyethylene wax that accounts for powder total amount 0.2～2% titanate ester or the silane coupling agent that account for antimicrobial agent gross weight 0.2～2%; To resulting mixed-powder, under 10～30% ℃ of conditions of temperature, stir with 5～100 beats/mins of frequencies and carried out immersion treatment in 1.5～2 minutes; Then dried 60～120 minutes under 90～120 ℃ of temperature conditions; The nano antibacterial agent that obtains after drying and processing is added resin by 5～30% of weight resin; Mix with homogenizer, carry out sufficient immersion treatment; The mixture that will obtain after flooding again melt extrudes granulation through dual-screw pelletizer and makes masterbatch.
The mechanism of action of the present invention is as follows: in the nano-class antibacterial material, antibacterial functions group is with positive electricity, and cell membrane or the cell wall of general bacterium and fungi all contain electronegative protein, because the adsorbable microbial cell of the effect of Coulomb force, affect the normal breathing of cell and metabolic function, thereby kill microorganisms reaches antibiotic purpose.
Antibacterial functions group can be further sees through cell wall and enter in bacterium, with the functional gene reaction of bacterium, bacterioprotein is solidified, and destroys the cell synthase activity of bacterium, makes cell lose the ability of schizogamy and death.In addition, electric transmission system, respiratory system, substance delivery system that can also destroy microorganisms.
Because charge environment is the basis of bacterium, conk and breeding, just the same to human body with water as air.Lack this environment, it is dead that bacterium and fungi are all wanted, the physical action of this electric bacterium on the people without impact, thereby guaranteed the Security of using.
Advantage of the present invention is: production technology is simple, preparation easily, except having the characteristics such as good heat resistance, non-scaling, corrosion-resistant, lightweight, appearance looks elegant, flowing water resistance be little, also have antibacterial action, can be used for environment and the media such as purified water, beverage, food and cold and hot water pipe.
Description of drawings
Fig. 1 is sectional view of the present invention
In figure, the 1-polyvinyl plastics is outer, 2-nano-antibacterial internal layer
Embodiment
The present invention will be further described below in conjunction with accompanying drawing: as shown in Figure 1, it comprises polyvinyl plastics outer 1 and nano-antibacterial internal layer 2, and the thickness of antibiotic internal layer 2 is:
(1) during nominal outside diameter≤32mm, thickness 〉=0.25mm;
(2) during 40mm＜nominal outside diameter≤63mm, thickness 〉=0.30mm;
(3) during 75mm＜nominal outside diameter≤90mm, thickness 〉=0.5mm;
(4) during nominal outside diameter 〉=110mm, thickness 〉=1.0mm.
Its preparation method is as follows:
(1) nano-antibacterial masterbatch preparation:
Simultaneously add in nano antibacterial agent with the low molecular weight polyethylene wax that accounts for powder total amount 0.2～2% titanate ester or the silane coupling agent that account for antimicrobial agent gross weight 0.2～2%; To resulting mixed-powder, under 10～30% ℃ of conditions of temperature, stir with 5～100 beats/mins of frequencies and carried out immersion treatment in 1.5～2 minutes; Then dried 60～120 minutes under 90～120 ℃ of temperature conditions; The nano antibacterial agent that obtains after drying and processing is added resin by 5～30% of weight resin; Mix with homogenizer, carry out sufficient immersion treatment; The mixture that will obtain after flooding again melt extrudes granulation through dual-screw pelletizer and makes masterbatch.
(2) nano-antibacterial polyvinyl piping materials preparation:
A, the preparation of nano-antibacterial internal layer: the nano-class antibacterial masterbatch is added in polyethylene resin by 1～15% of polyethylene weight, mix with stirrer, carry out the melting heating, obtain the mixture of the polyvinyl plastics of nano-antibacterial masterbatch, for the preparation of the nano-antibacterial internal layer; B, moulding: make the polyvinyl plastics that contains nano-antibacterial synchronize co-extrusion with the common polythene plastics, be prepared into the tubing that comprises the outer and nano-antibacterial internal layer of polyvinyl plastics; C, the typing cooling.
The physics and chemistry performance of the tubing of producing after measured, is as follows:
Tubing is through mold resistance test and durable test, and result is as follows:
Claims (4)
1. a nano-antibacterial polyvinyl piping materials, be mainly used to delivery (pipe) line, it is characterized in that: it comprises polyvinyl plastics outer (1) and nano-antibacterial internal layer (2), and wherein, antibiotic internal layer (2) evenly is added with the nano-class antibacterial masterbatch.
2. nano-antibacterial polyvinyl piping materials according to claim 1, it is characterized in that: the thickness of described nano-antibacterial internal layer (2) is:
(1) during nominal outside diameter≤32mm, thickness 〉=0.25mm;
(2) during 40mm＜nominal outside diameter≤63mm, thickness 〉=0.30mm;
(3) during 75mm＜nominal outside diameter≤90mm, thickness 〉=0.5mm;
(4) during nominal outside diameter 〉=110mm, thickness 〉=1.0mm.
3. the preparation method of a nano-antibacterial polyvinyl piping materials, is characterized in that, it comprises the following steps:
A, the preparation of nano-antibacterial internal layer: the nano-class antibacterial masterbatch is added in polyethylene resin by 1～15% of polyethylene weight, mix with stirrer, carry out the melting heating, obtain the mixture of the polyvinyl plastics of nano-antibacterial masterbatch, for the preparation of the nano-antibacterial internal layer;
B, moulding: make the polyvinyl plastics that contains nano-antibacterial synchronize co-extrusion with the common polythene plastics, be prepared into the tubing that comprises the outer and nano-antibacterial internal layer of polyvinyl plastics;
C, the typing cooling.
4. the preparation method of according to claim 1 with the 3 anti-castor polyvinyl piping materials of described nanometer, it is characterized in that: the preparation method of described nano-antibacterial masterbatch is as follows:
Simultaneously add in nano antibacterial agent with the low molecular weight polyethylene wax that accounts for powder total amount 0.2～2% titanate ester or the silane coupling agent that account for antimicrobial agent gross weight 0.2～2%; To resulting mixed-powder, under 10～30% ℃ of conditions of temperature, stir with 5～100 beats/mins of frequencies and carried out immersion treatment in 1.5～2 minutes; Then dried 60～120 minutes under 90～120 ℃ of temperature conditions; The nano antibacterial agent that obtains after drying and processing is added resin by 5～30% of weight resin; Mix with homogenizer, carry out sufficient immersion treatment; The mixture that will obtain after flooding again melt extrudes granulation through dual-screw pelletizer and makes masterbatch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110373064 CN103133787A (en) | 2011-11-22 | 2011-11-22 | Nano-antibacterial polyethylene tubular product and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110373064 CN103133787A (en) | 2011-11-22 | 2011-11-22 | Nano-antibacterial polyethylene tubular product and preparation method thereof |
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| CN103133787A true CN103133787A (en) | 2013-06-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235521A (en) * | 2013-11-15 | 2014-12-24 | 安徽省忠宏管业科技有限公司 | Antimicrobial PE (poly ethylene) pipe |
| CN109488818A (en) * | 2019-01-10 | 2019-03-19 | 山东名气管业有限公司 | A kind of water-supply-pipe with antibacterial internal layer |
| CN113246570A (en) * | 2021-05-28 | 2021-08-13 | 安徽杰蓝特新材料有限公司 | Antibacterial and anti-oxidation PE drain pipe and processing technology thereof |
-
2011
- 2011-11-22 CN CN 201110373064 patent/CN103133787A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235521A (en) * | 2013-11-15 | 2014-12-24 | 安徽省忠宏管业科技有限公司 | Antimicrobial PE (poly ethylene) pipe |
| CN104235521B (en) * | 2013-11-15 | 2016-06-22 | 安徽省忠宏管业科技有限公司 | A kind of antimicrobial PE tube |
| CN109488818A (en) * | 2019-01-10 | 2019-03-19 | 山东名气管业有限公司 | A kind of water-supply-pipe with antibacterial internal layer |
| CN109488818B (en) * | 2019-01-10 | 2023-02-03 | 山东名气管业有限公司 | Water delivery pipe with antibacterial inner layer |
| CN113246570A (en) * | 2021-05-28 | 2021-08-13 | 安徽杰蓝特新材料有限公司 | Antibacterial and anti-oxidation PE drain pipe and processing technology thereof |
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Application publication date: 20130605 |