CN1233520C - Nanometer antibacterial plastic pipe and preparation process thereof - Google Patents
Nanometer antibacterial plastic pipe and preparation process thereof Download PDFInfo
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- CN1233520C CN1233520C CN 200310109668 CN200310109668A CN1233520C CN 1233520 C CN1233520 C CN 1233520C CN 200310109668 CN200310109668 CN 200310109668 CN 200310109668 A CN200310109668 A CN 200310109668A CN 1233520 C CN1233520 C CN 1233520C
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Abstract
The present invention discloses a nanometer antibacterial plastic pipe and a preparation technology thereof. The nanometer antibacterial plastic pipe comprises a plastic outer layer and a plastic inner layer which are made of ordinary thermoplastic, wherein the plastic inner layer adopts antibacterial plastic made of 5 to 10 weight parts of nanometer antibacterial mother particles and 90 to 95 weight parts of ordinary thermoplastic. A double-layer co-extrusion compound mould is adopted during production; thus, the antibacterial plastic of the inner layer and the ordinary plastic of the outer layer are tightly bonded to form one body. Because the inner layer of the present invention is added with an antibacterial layer made of nanometer antibacterial materials, the present invention can kill bacteria in water and can also suppress bacterial growth. Therefore, the product can keep the sanitation and cleanness of water quality. The present invention can be applied to the direct drinking water engineering of quality division water supply pipelines and water supply occasions with high sanitation performance requirement to satisfy people's continuous enhanced life requirements. Furthermore, the present invention has the advantage of low cost because the antibacterial materials are only added into the inner layer plastic.
Description
Technical field
The invention belongs to building material technical field, relate to a kind of antibiotic plastic pipe, also relate to the preparation technology of this antibiotic plastic pipe.
Background technology
The plastic pipe that is applied to the buildings plumbing now is generally common plastics tubing such as polypropylene pipe (PP-B, PP-R, PP-H), hdpe pipe, though these common plastics tubing can reach health and health and requirement, but can not suppress its growth to the bacterium that exists in the water quality, it can not be killed, and behind the process life-time service, internal surface of pipe can adhere to, grow microorganism.When sluggish flow in the pipeline or water temporarily retained, bacterium can form one deck mycoderm attached to tube wall and through the breeding in one period, makes deteriorating water quality.Can grow a kind of special bacterium in hot water pipeline, their very fast a large amount of breedings make line clogging easily when serious.Plastic water supply pipe inwall in use, the yellow dirt that often can see promptly is the result of microbial growth.
According to statistics, the disease in the whole world 80%, 50% cancer and to drink unclean water purification relevant.The whole world dead philtrum of nineteen ninety-five, owing to the death that caused by infectation of bacteria accounts for 1/3 of total toll, Japanese pathogenic colon bacillus in 1996 causes that the food poisoning of nationwide was once once causing global fear, and invasive organisms such as bacterium are one of main killers of human health.In recent years, the Drinking Water quality was paid attention to by people day by day.Piped direct-drinking water (water tumbler) engineering that has begun to build supplying water in different qualities in some big cities, the whole nation, but only tap water and domestic water separately also can not be solved water pollution issue far away with pipeline, water also can cause the secondary pollution of water quality because of growing of tube wall bacterium when flowing in pipeline.
Summary of the invention
Purpose of the present invention is intended to overcome above-mentioned shortcoming, and a kind of nano antiseptic plastic pipe that can kill nuisance such as bacterium in the water is provided.
Another object of the present invention provides the preparation technology of nano antiseptic plastic pipe.
For reaching above-mentioned purpose, the present invention adopts following solution: a kind of nano antiseptic plastic pipe, comprise plastic outer layer and the inner plastic made by the ordinary hot thermoplastic plastic, it is characterized in that: what inner plastic adopted is the antibiotic plastic of being made by 5-10 weight part nano-class antibacterial master batch and 90-95 weight part ordinary hot thermoplastic plastic.
Above-mentioned nano antiseptic plastic pipe is characterized in that: described nano-class antibacterial master batch is made (consumption is a weight part) by the following weight proportion raw material:
Silver-loaded zirconium phosphate inorganic antiseptic 20-25 part composite antioxidant 0.2-0.5 part
Dispersion agent 0.2-0.4 part UV light absorber 0.3-0.5 part
100 parts of coupling agent 0.2-0.5 part thermoplastics base-materials
Above-mentioned raw materials is carried out thorough mixing through mixer in proportion, treat that mixing of materials evenly after, add the double-screw extruding pelletizing unit and carry out fusion, processing temperature is 160 ℃～220 ℃, extrudes the single-size that φ 2 * 3m is made in pelletizing through the double-screw extruding pelletizing unit.
Above-mentioned nano antiseptic plastic pipe is characterized in that: described composite antioxidant is a phenolic antioxidant, and UV light absorber is a salicylate class absorption agent, and coupling agent is a titanate ester OLT-951 coupling agent.
The technology for preparing above-mentioned nano antiseptic plastic pipe is:
1, according to producing the tubing specification double-layer coextrusion composite die is installed, promptly be connected, and carry out preheating with two single screw extrusion machines;
2, the antibacterial matrices for preparing is added equably in the ratio of 5-10 weight part in the ordinary hot thermoplastic plastic of 90-95 weight part and make antibiotic plastic, start the vacuum charging equipment, ordinary hot thermoplastic plastic and the antibiotic plastic that is added with antibacterial matrices are sucked respectively in the hopper of two single screw extrusion machines and carry out drying and preheating;
3, after preheating in 120-180 minute, treat that two extruders and double-layer coextrusion composite die temperature reach after 170 ℃～220 ℃ scopes, start two different forcing machines successively, after the moulding of double-layer coextrusion composite die, become bonding closely, shape such as one, be difficult for stratified internal layer and be the nano-antibacterial layer, outerly be common thermoplastic plastic layer's nano antiseptic plastic pipe;
4, pipe is after vacuum sizing, spray cooling, surface drying processing, laser coding, traction, scale cutting, check, and its two ends also need to handle because the burr that cutting causes makes the tubing two ends smooth smooth with end milling machine.
5, in whole process of production, the temperature and the processing parameter at running check forcing machine and each position of two-layer compound co-extruding mould whether normal, and in time adjusted, guarantee that every performance index of product meet technological standards.
The present invention is divided into inside and outside two-layer, skin is thicker common plastics layer, internal layer is for adding the antibiotic plastic layer of nano-class antibacterial master batch, contain nano level silver-loaded zirconium phosphate inorganic antiseptic in the antibiotic plastic, it is dispersed in the surface of antibiotic plastic layer, the silver metal ion stripping from the micropore of nano level silver-loaded zirconium phosphate carrier gradually of trace comes, enter the inside of thalline, and the sulfydryl on the proteolytic enzyme in rapid and the bacterial body (SH) combines, cause the forfeiture of the inner enzymic activity of bacterium, destroy bacterium born of the same parents' respiratory system and nutrient delivery system, caused bacterium death, produced germicidal action.After bacterium was killed, silver-colored trace metal ion dissociated out again from the bacterium corpse, contacted with other bacterium again, and this sterilization process of the repetition that goes round and begins again makes the nano antiseptic plastic pipe produce the effect of long-acting bacteria growing inhibiting.Antibiotic mechanism is as follows:
By in nano-antibacterial (PP-R) plastics tubing, slowly release 2Ag+ at water, cause the total composition of microorganism to destroy or produce dysfunction, when the silver ions 2Ag+ of trace reaches the microorganism cells film, because of bacterium has negative charge, rely on coulombic force, make the two firm absorption, 2Ag+ penetration cell wall enters in the cell, and with sulfydryl reaction, make protein coagulating, destroy the activity of cell synthetic enzyme, make cell forfeiture fissiparity ability and death
As seen, 2Ag+ has cut off S-S and has separated out in conjunction with generating AgS, causes the metabolic destroyed of microorganism, thereby has produced anti-germicidal action.2Ag+ also can destroy microorganisms electric transmission system, respiratory system, substance delivery system, and promptly 2Ag+ has higher redox potential, and reactive behavior is big, reaches the stable structure state by reaction, so can bring into play persistent antibacterial effect by slowly-releasing.
Compared with prior art, the present invention has following advantage:
1, because the internal layer of nano antiseptic plastic pipe of the present invention is an antibiotic layer, the nano-class antibacterial material that in antibiotic layer, has added good stability, thereby the bacterium in the water had killing action and can suppress the growth of bacterium, the sanitation and hygiene that therefore can keep water quality with this product, can be applicable to piped direct-drinking water (water tumbler) engineering of supplying water in different qualities and the water supply occasion that sanitation performance is had relatively high expectations, satisfy the life requirement that people improve constantly.
2, for the nano-class antibacterial masterbatch is played effectiveness to greatest extent in the present invention, reduce the consumption of nano-class antibacterial masterbatch simultaneously, reduce the goods cost, this product adopts advanced compound expressing technique, the internal layer that contacts with medium at tubing, by the co-extruding mould of particular design, form a uniform antibacterial film.The nano-class antibacterial material is added in the inner wall layer plastics of tubing, rather than in whole tubing raw material, add, can reduce production cost of products greatly like this, make to have nano antiseptic plastic pipe antibiotic, self-cleaning function and dominate the market rapidly, accelerate the speed of achievements conversion with rational market value.
3, the present invention utilizes nanotechnology, common anti-biotic material is built into nano level anti-biotic material after, great change just can take place in its physics, chemical property.Nano level material generally all has self-cleaning function, antiscale, good, extremely efficient in preserving heat, high temperature resistant, the wear-resisting wiping of anti-adhesion property, shock-resistant utilize the physicochemical property of nano material uniqueness, and anti-biotic material is added wherein in proportion, in use slowly discharge, can play long acting antibiotic, germ-resistant effect.
4, shape such as one: the present invention can make the intermolecular abundant combination of inside and outside two layers of plastic through the nano antiseptic plastic pipe of two-layer co-extruding machine head compound extrusion moulding production, closely not stratified, shape such as one avoid producing in the use generation of phenomenons such as delamination, peeling.
Description of drawings
The structural representation of Fig. 1, nano antiseptic plastic pipe of the present invention.
The structural representation of the double-layer coextrusion composite die of Fig. 2, preparation nano antiseptic plastic pipe.
Among the figure: the extruder head 5-internal layer extrusion cavities 6-outer extrusion cavities of the extruder head 4-antibiotic plastic of 1-plastic outer layer, 2-inner plastic, 3-common plastics
Embodiment
Embodiment 1: as shown in Figure 1, the present invention includes plastic outer layer 1 and inner plastic 2, plastic outer layer 1 is made by the ordinary hot thermoplastic plastic, what inner plastic 2 adopted is the antibiotic plastic of being made by 5 weight part nano-class antibacterial master batches and 95 weight part ordinary hot thermoplastic plastics, and wherein the nano-class antibacterial master batch is made (consumption is a weight part) by the following weight proportion raw material:
0.35 part of 20 parts of phenolic antioxidant of silver-loaded zirconium phosphate inorganic antiseptic
0.4 part in 0.3 part of salicylate class of dispersion agent absorption agent
100 parts of 0.4 part of thermoplastics base-materials of titante coupling agent
Above-mentioned raw materials is carried out thorough mixing through mixer in proportion; after treating that mixing of materials evenly; add the double-screw extruding pelletizing unit and carry out fusion, processing temperature is 160 ℃～220 ℃, extrudes the single-size that φ 2 * 3mm is made in pelletizing through the double-screw extruding pelletizing unit.
Two single screw slenderness ratios of present embodiment employing are that 33: 1 forcing machine is produced, and-platform forcing machine carries out fusion to common plastics, and a forcing machine carries out fusion to antibiotic plastic.As shown in Figure 2, the extruder head of two extruders is connected with the double-layer coextrusion composite die, the extruder head 3 of common plastics is communicated with the outer extrusion cavities 6 of double-layer coextrusion composite die, the extruder head 4 of antibiotic plastic is communicated with the internal layer extrusion cavities 5 of double-layer coextrusion composite die, internal layer extrusion cavities 5 is integrated at the exit end of double-layer coextrusion mould with outer extrusion cavities 6, so just can make antibiotic plastic and outer field common plastics close adhesion, shape such as the one of internal layer.
The production technique of present embodiment as previously mentioned.
Embodiment 2: as shown in Figure 1, the present invention includes plastic outer layer 1 and inner plastic 2, plastic outer layer 1 is made by PP-R plastics, inner plastic 2 adopts is that wherein the nano-class antibacterial master batch is made (consumption is a weight part) by the following weight proportion raw material by 10 weight part nano-class antibacterial master batches and antibiotic plastic that 90 weight parts PP-the R plastics are made:
0.5 part of 25 parts of phenolic antioxidant of silver-loaded zirconium phosphate inorganic antiseptic
0.5 part in 0.4 part of salicylate class of dispersion agent absorption agent
100 parts of 0.5 part of PP of titante coupling agent-R plastic matrix
Above-mentioned raw materials is carried out thorough mixing through mixer in proportion; after treating that mixing of materials evenly, add the double-screw extruding pelletizing unit and carry out fusion, processing temperature is 160 ℃～220 ℃;, extrude the single-size that φ 2 * 3mm is made in pelletizing through the double-screw extruding pelletizing unit.
The production unit of present embodiment and production technique are with embodiment one.
The antibacterial matrices that antibiotic plastic among above-mentioned two embodiment all can use Xi'an Convrl Rntibiotic Science ﹠ Technique Co., Ltd. to produce.
Claims (3)
1, a kind of nano antiseptic plastic pipe, comprise plastic outer layer and the inner plastic made by the ordinary hot thermoplastic plastic, it is characterized in that: what inner plastic adopted is the antibiotic plastic of being made by 5-10 weight part nano-class antibacterial master batch and 90-95 weight part ordinary hot thermoplastic plastic, and wherein the nano-class antibacterial master batch is made by the following weight parts proportion raw material:
Silver-loaded zirconium phosphate inorganic antiseptic 20-25 part composite antioxidant 0.2-0.5 part
Dispersion agent 0.2-0.4 part UV light absorber 0.3-0.5 part
100 parts of coupling agent 0.2-0.5 part thermoplastics base-materials
Above-mentioned raw materials is carried out thorough mixing through mixer in proportion; after treating that mixing of materials evenly; add the double-screw extruding pelletizing unit and carry out fusion, processing temperature is 160 ℃～220 ℃, extrudes the single-size that φ 2 * 3mm is made in pelletizing through the double-screw extruding pelletizing unit.
2, nano antiseptic plastic pipe according to claim 1 is characterized in that: described composite antioxidant is a phenolic antioxidant, and UV light absorber is a salicylate class absorption agent, and coupling agent is a titanate ester OLT-951 coupling agent.
3, the technology of preparation nano antiseptic plastic pipe as claimed in claim 1, it is characterized in that: it comprises the steps:
(1) 100 parts of silver-loaded zirconium phosphate inorganic antiseptic 20-25 parts, composite antioxidant 0.2-0.5 part, dispersion agent 0.2-0.4 part, UV light absorber 0.3-0.5 part, coupling agent 0.2-0.5 part, thermoplastics base-material are carried out thorough mixing through mixer, after treating that mixing of materials evenly, add the double-screw extruding pelletizing unit and carry out fusion, processing temperature is 160 ℃～220 ℃, extrude the single-size that φ 2 * 3mm is made in pelletizing through the double-screw extruding pelletizing unit, be the nano-class antibacterial master batch;
(2) according to producing the tubing specification double-layer coextrusion composite die is installed, promptly be connected, and carry out preheating with two single screw extrusion machines;
(3) antibacterial matrices for preparing is added equably in the ratio of 5-10 weight part in the ordinary hot thermoplastic plastic of 90-95 weight part and make antibiotic plastic, start the vacuum charging equipment, ordinary hot thermoplastic plastic and the antibiotic plastic that is added with antibacterial matrices are sucked respectively in the hopper of two single screw extrusion machines and carry out drying and preheating;
(4) after preheating in 120-180 minute, treat that two extruders and double-layer coextrusion composite die temperature reach after 170 ℃～220 ℃ scopes, start two different forcing machines successively, after the moulding of double-layer coextrusion composite die, become bonding closely, shape such as one, be difficult for stratified internal layer and be the nano-antibacterial layer, outerly be common thermoplastic plastic layer's nano antiseptic plastic pipe;
(5) pipe is after vacuum sizing, spray cooling, surface drying processing, laser coding, traction, scale cutting, check, and handle with end milling machine at its two ends again, promptly gets the smooth smooth nano antiseptic plastic pipe in two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310109668 CN1233520C (en) | 2003-11-21 | 2003-11-21 | Nanometer antibacterial plastic pipe and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310109668 CN1233520C (en) | 2003-11-21 | 2003-11-21 | Nanometer antibacterial plastic pipe and preparation process thereof |
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| Publication Number | Publication Date |
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| CN1544234A CN1544234A (en) | 2004-11-10 |
| CN1233520C true CN1233520C (en) | 2005-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200310109668 Expired - Fee Related CN1233520C (en) | 2003-11-21 | 2003-11-21 | Nanometer antibacterial plastic pipe and preparation process thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803236B (en) * | 2005-01-16 | 2010-08-18 | 薛廷芳 | Half-automatic mah-jong table service capable of self-disinfecting and sterilizing, and its disinfection method |
| CN103571055A (en) * | 2013-10-30 | 2014-02-12 | 芜湖纽麦特新材料有限公司 | Antibacterial plastic master batch, and preparation method and antibacterial plastic thereof |
| CN103897382A (en) * | 2013-11-08 | 2014-07-02 | 东南大学 | Flame retardant plastic |
| CN104562236A (en) * | 2014-12-29 | 2015-04-29 | 嘉兴金旭新材料科技有限公司 | Antibacterial colored profiled ultrafine denier polyester filament and preparation method thereof |
| CN110527168A (en) * | 2019-08-14 | 2019-12-03 | 湖南登科材料科技有限公司 | A kind of antibiotic plastic masterbatch and preparation method thereof |
| CN112833261A (en) * | 2019-11-25 | 2021-05-25 | 湖南诚路管业科技有限公司 | Durable composite plastic pipe |
| CN112280173A (en) * | 2020-10-30 | 2021-01-29 | 熊爱仙 | Plastic pipe preparation process |
| CN114425844B (en) * | 2022-04-06 | 2022-06-07 | 南昌大学 | Medical antibacterial plastic catheter extrusion molding equipment and method |
| CN115816886B (en) * | 2023-02-22 | 2023-05-23 | 安徽中飞管道科技有限公司 | Antibacterial water pipe with self-cleaning function and preparation method thereof |
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2003
- 2003-11-21 CN CN 200310109668 patent/CN1233520C/en not_active Expired - Fee Related
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| CN1544234A (en) | 2004-11-10 |
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