CN109386667A - A kind of modified polypropylene plastic tubing and preparation method thereof - Google Patents
A kind of modified polypropylene plastic tubing and preparation method thereof Download PDFInfo
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- CN109386667A CN109386667A CN201811271556.9A CN201811271556A CN109386667A CN 109386667 A CN109386667 A CN 109386667A CN 201811271556 A CN201811271556 A CN 201811271556A CN 109386667 A CN109386667 A CN 109386667A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
- F16L11/124—Distinguishing marks for hoses
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of modified polypropylene plastic tubing, comprising: spray painting bed course；Phosphor powder layer；Modified plastics inner tube prepares the raw material and its parts by weight of the modified plastics inner tube are as follows: 100 parts of isotactic polypropylene, 2 parts -15 parts of dispersing agent, 10 parts -25 parts and 10 parts -30 parts of magnetic iron powder of expanding material；And modified plastics outer tube, the present invention is by being coated with spray painting bed course in modified plastics inner tube outer surface, and brushing in spray painting bed course outer surface has phosphor powder layer, the water pipe for being exposed to outside can be made to absorb sunlight when daytime, and certain light is discharged at night, it allows users to see water pipe at night, it avoids being tripped by water pipe, simultaneously because being added with magnetic iron powder in modified plastics internal tube, water can be magnetized using magnetic iron powder, water after magnetization is beneficial to human body, plastics antioxidant is added in modified plastics outer tube simultaneously, it being capable of anti-antipriming pipe oxidation.
Description
Technical field
The present invention relates to modified polythene tube production technical field, specially a kind of modified polypropylene plastic tubing and its
Preparation method.
Background technique
Polypropylene is a kind of thermoplastic resin as prepared by propylene polymerization.It is divided into isotactic poly- third by methyl arrangement position
Alkene, random polypropylene and three kinds of syndiotactic polypropylene；And it is industrially poly- due to being needed in different industries, different application scenarios
Propylene product has different property, therefore can be by having corresponding properties to adding various other materials inside polypropylene and be made
Modified polypropylene material, the material obtained in this way is referred to as modified polypropene.
But there are some drawbacks in use in traditional modified polypropylene pipes, such as:
Traditional household tap water pipe is manufactured using PVC material mostly, but the water set up in some factories or special dimension
Pipe is exposed to outside, is easy to be tripped by water pipe when the personnel of working at night patrol, next is exposed to extraneous water
Tube outer surface is easy to be damaged by weathering.
Summary of the invention
The purpose of the present invention is to provide a kind of modified polypropylene plastic tubing and preparation method thereof, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of modified polypropylene plastic tubing, comprising:
Paint bed course；
Phosphor powder layer；
Modified plastics inner tube prepares the raw material and its parts by weight of the modified plastics inner tube are as follows: and 100 parts of isotactic polypropylene, point
2 parts -15 parts of powder, 10 parts -25 parts and 10 parts -30 parts of magnetic iron powder of expanding material；And
Modified plastics outer tube prepares the raw material and its parts by weight of the modified plastics outer tube are as follows: and 100 parts of isotactic polypropylene, point
2 parts -15 parts of powder, 10 parts -25 parts of expanding material, 1.5 parts -3 parts and 0.3 part -1.2 parts of stabilizer of plastics antioxidant；
Wherein, spray painting bed course even application is in the modified plastics inner tube outer surface, and the phosphor powder layer uniform fold is described
Spray painting bed course outer surface, the modified plastics inner tube outer surface are plugged on after spraying the spray painting bed course and the phosphor powder layer
The modified plastics outer tube.
Further, further includes: the isotactic polypropylene are as follows: relative molecular weight is 5500~7500, and melt index is
1.2g/min~1.8g/min, isotacticity >=93.
Further, further includes: the dispersing agent are as follows: any one in barium stearate or calcium stearate.
Further, further includes: the expanding material are as follows: maleic anhydride graft compatilizer.
Further, further includes: the plastics antioxidant are as follows: polyolefin, polyvinyl chloride and nylon are wherein any one
It is combined between kind or two kinds.
Further, further includes: the stabilizer are as follows: zinc stearate, calcium, any one in magnesium.
Further, a kind of preparation method of modified polypropylene plastic tubing, comprising the following steps:
S1, raw material mixing:
Isotactic polypropylene part is taken, it 2 parts -15 parts of dispersing agent, 10 parts -25 parts and 10 parts -30 parts of magnetic iron powder of expanding material, first will be above-mentioned
It is mixed that isotactic polypropylene, dispersing agent and magnetic iron powder in raw material launch the progress heating stirring in non-ferrous canister simultaneously
It closes, heating temperature is higher than 5 DEG C -10 DEG C of isotactic polypropylene melting temperature, when isotactic polypropylene, dispersing agent and magnetic iron powder are non-ferrous
After melting mixing completely in canister, then above-mentioned expanding material is added into above-mentioned non-ferrous canister and continues to stir, when
Stop heating after other materials is sufficiently mixed in the expanding material and non-ferrous canister, the material completed to above-mentioned mixing is cold
But the modified plastics inner tube raw material is obtained afterwards；
Take 100 parts of isotactic polypropylene, 2 parts -15 parts of dispersing agent, 10 parts -25 parts of expanding material, 1.5 parts -3 parts of plastics antioxidant and
0.3 part -1.2 parts of stabilizer, isotactic polypropylene, dispersing agent, plastics antioxidant and stabilizer are launched non-simultaneously first
Heating stirring mixing is carried out in ferrous metal container, heating temperature is higher than 5 DEG C -10 DEG C of isotactic polypropylene melting temperature, works as isotactic
After polypropylene, dispersing agent, plastics antioxidant and stabilizer melt mixing completely in non-ferrous canister, then Xiang Shangshu
Above-mentioned expanding material is added in non-ferrous canister and continues to stir, when other materials in the expanding material and non-ferrous canister
Material stops heating after being sufficiently mixed, and obtains the modified plastics outer tube raw material after the material that above-mentioned mixing is completed is cooling；
S2, hot melt extruded molding:
By modified plastics inner tube raw material obtained in the S1 and modified plastics outer tube raw material be individually positioned in extruder into
Row hot melt extruded molding, wherein carrying out the tubing that hot melt extruded forms using modified plastics inner tube raw material is modified plastics
Inner tube, carrying out the tubing that hot melt extruded forms using modified plastics outer tube raw material is modified plastics outer tube；And it is squeezed utilizing
Press by adjusting the setting to finished product caliber, moulds modified plastics inner tube raw material and modified plastics outer tube raw material so that being modified
Expect that outer tube finished product internal diameter is 10mm bigger than modified plastics inner tube finished product outer diameter size；
S3, spray-on coating:
Firstly, suitable fluorescent powder is taken to place in the mixing container, it is appropriate to be added in the mixing vessel where Xiang Shangshu fluorescent powder
Varnish and stirring obtain fluorescent powder mixed liquor so that fluorescent powder can be uniformly distributed in varnish；
Secondly, pipe surface in the modified plastics obtained in the S2 is cleared up, after the completion of cleaning outside modified plastics inner tube
Surface even application is again completed above-mentioned configuration after the bed course that paints parches completely glimmering with a thickness of the spray painting bed course of 1mm-2mm
Light powder mixed liquor, which is uniformly brushed, forms phosphor powder layer in spray painting bed course outer surface, and the brush of the phosphor powder layer after parching completely
It applies with a thickness of 2mm-3mm；
S4, casing:
Outer surface in the S3 had into the modified plastics inner tube of the spray painting bed course and phosphor powder layer insertion modified modeling
Expect outer tube, intercepts the finished sleeve of the modified plastics inner tube and the modified plastics outer tube equal length, so that at
The modified plastics inner tube and the modified plastics outer tube length dimension in product casing is identical, then the modification at this time
Plastic inner pipe and modified plastics outer tube end section are in same plane, at this time to the modified plastics inner tube and
Seccotine is perfused between the modified plastics outer tube in gap, the perfusion depth of seccotine is 10cm-30cm.
Further, further includes: heating method when mixing in the S1 to material uses electrically heated mode.
Further, further includes: spray painting color selected by the spray painting bed course sprayed in the S3 is black.
Compared with prior art, the beneficial effects of the present invention are:
There is fluorescent powder by being coated with spray painting bed course in modified plastics inner tube outer surface, and brushing in spray painting bed course outer surface
Layer can make the water pipe for being exposed to outside absorb sunlight when daytime, and discharge certain light at night, enable a user to
It is enough to see water pipe at night, it avoids being tripped by water pipe, simultaneously because being added with magnetic iron powder, Neng Gouli in modified plastics internal tube
Water is magnetized with magnetic iron powder, the water after magnetization is beneficial to human body, while anti-added with plastics in modified plastics outer tube
Oxidant, being capable of anti-antipriming pipe oxidation.
Detailed description of the invention
Fig. 1 is plastic pipe side structure schematic view of the present invention；
Fig. 2 is plastic pipe main view partial profile structure of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is plastic pipe side structure schematic view of the present invention referring to FIG. 1-2,；Fig. 2 is plastic pipe main view of the present invention
Partial profile structure.
Embodiment 1
The present invention provides a kind of technical solution: a kind of modified polypropylene plastic tubing, comprising: modified plastics inner tube 100 prepares institute
State the raw material and its parts by weight of modified plastics inner tube 100 are as follows: 100 parts of isotactic polypropylene, 2 parts -8 parts of dispersing agent, expanding material 10
- 15 parts and 10 parts -15 parts of magnetic iron powder of part；And
Modified plastics outer tube 200 prepares the raw material and its parts by weight of the modified plastics outer tube 200 are as follows: isotactic polypropylene 100
Part, 2 parts -15 parts of dispersing agent, 10 parts -25 parts of expanding material, 1.5 parts -3 parts and 0.3 part -1.2 parts of stabilizer of plastics antioxidant；
Wherein, in 100 outer surface of modified plastics inner tube, the phosphor powder layer 400 uniformly covers spray painting 300 even application of bed course
It covers in 300 outer surface of spray painting bed course, 100 outer surface of modified plastics inner tube is through spraying the spray painting bed course 300 and institute
It is plugged on inside the modified plastics outer tube 200 after stating phosphor powder layer 400.
Further, further includes: the isotactic polypropylene are as follows: relative molecular weight is 5500~7500, and melt index is
1.2g/min~1.8g/min, isotacticity >=93.
Further, further includes: the dispersing agent are as follows: any one in barium stearate or calcium stearate.
Further, further includes: the expanding material are as follows: maleic anhydride graft compatilizer.
Embodiment 2
The present invention provides a kind of technical solution: a kind of modified polypropylene plastic tubing, comprising: modified plastics inner tube 100 prepares institute
State the raw material and its parts by weight of modified plastics inner tube 100 are as follows: 100 parts of isotactic polypropylene, 9 parts -15 parts of dispersing agent, expanding material 16
- 25 parts and 16 parts -30 parts of magnetic iron powder of part；And
Modified plastics outer tube 200 prepares the raw material and its parts by weight of the modified plastics outer tube 200 are as follows: isotactic polypropylene 100
Part, 2 parts -15 parts of dispersing agent, 10 parts -25 parts of expanding material, 1.5 parts -3 parts and 0.3 part -1.2 parts of stabilizer of plastics antioxidant.
Further, further includes: the isotactic polypropylene are as follows: relative molecular weight is 5500~7500, and melt index is
1.2g/min~1.8g/min, isotacticity >=93.
Further, further includes: the dispersing agent are as follows: any one in barium stearate or calcium stearate.
Further, further includes: the expanding material are as follows: maleic anhydride graft compatilizer.
Further, further includes: the plastics antioxidant are as follows: polyolefin, polyvinyl chloride and nylon are wherein any one
It is combined between kind or two kinds.
Further, further includes: the stabilizer are as follows: zinc stearate, calcium, any one in magnesium.
Embodiment 3
The present invention provides a kind of another technical solution: preparation method of modified polypropylene plastic tubing, comprising the following steps:
S1, raw material mixing:
100 parts of isotactic polypropylene are taken, 2 parts -15 parts of dispersing agent, 10 parts -25 parts and 10 parts -30 parts of magnetic iron powder of expanding material, first will
Isotactic polypropylene, dispersing agent and magnetic iron powder in above-mentioned raw material are launched to carry out heating in non-ferrous canister simultaneously and be stirred
Mixing is mixed, heating temperature is higher than 5 DEG C -10 DEG C of isotactic polypropylene melting temperature, when isotactic polypropylene, dispersing agent and magnetic iron powder are non-
After melting mixing completely in ferrous metal container, then above-mentioned expanding material is added into above-mentioned non-ferrous canister and is persistently stirred
It mixes, stops heating after other materials is sufficiently mixed in the expanding material and non-ferrous canister, be completed to above-mentioned mixing
100 raw material of modified plastics inner tube is obtained after material is cooling；
Take 100 parts of isotactic polypropylene, 2 parts -15 parts of dispersing agent, 10 parts -25 parts of expanding material, 1.5 parts -3 parts of plastics antioxidant and
0.3 part -1.2 parts of stabilizer, isotactic polypropylene, dispersing agent, plastics antioxidant and stabilizer are launched non-simultaneously first
Heating stirring mixing is carried out in ferrous metal container, heating temperature is higher than 5 DEG C -10 DEG C of isotactic polypropylene melting temperature, works as isotactic
After polypropylene, dispersing agent, plastics antioxidant and stabilizer melt mixing completely in non-ferrous canister, then Xiang Shangshu
Above-mentioned expanding material is added in non-ferrous canister and continues to stir, when other materials in the expanding material and non-ferrous canister
Material stops heating after being sufficiently mixed, and obtains 200 raw material of modified plastics outer tube after the material that above-mentioned mixing is completed is cooling；
S2, hot melt extruded molding:
100 raw material of modified plastics inner tube obtained in the S1 and 200 raw material of modified plastics outer tube are individually positioned in extruding
Hot melt extruded molding is carried out in machine, wherein carrying out the tubing that hot melt extruded forms using 100 raw material of modified plastics inner tube is
Modified plastics inner tube 100, carrying out the tubing that hot melt extruded forms using 200 raw material of modified plastics outer tube is outside modified plastics
Pipe 200；And using extruder to 100 raw material of modified plastics inner tube and 200 raw material of modified plastics outer tube by adjusting at
The setting of quality control diameter, so that 200 finished product internal diameter of modified plastics outer tube is bigger than 100 finished product outer diameter size of modified plastics inner tube
10mm；
S3, spray-on coating:
Firstly, suitable fluorescent powder is taken to place in the mixing container, it is appropriate to be added in the mixing vessel where Xiang Shangshu fluorescent powder
Varnish and stirring obtain fluorescent powder mixed liquor so that fluorescent powder can be uniformly distributed in varnish；
Secondly, 100 surface of modified plastics inner tube obtained in the S2 is cleared up, in modified plastics inner tube after the completion of cleaning
100 outer surface even applications are matched above-mentioned after the bed course 300 that paints parches completely again with a thickness of the spray painting bed course 300 of 1mm-2mm
The fluorescent powder mixed liquor for setting completion, which is uniformly brushed, forms phosphor powder layer 400 in spray painting 300 outer surface of bed course, and after parching completely
The brushing of the phosphor powder layer 400 is with a thickness of 2mm-3mm；
S4, casing:
There is the modified plastics inner tube 100 of spray painting bed course 300 and phosphor powder layer 400 to be inserted into institute outer surface in the S3
It states inside modified plastics outer tube 200, intercepts the modified plastics inner tube 100 and 200 equal length of modified plastics outer tube
Finished sleeve so that the modified plastics inner tube 100 and 200 length dimension of modified plastics outer tube in finished sleeve
Identical, then the modified plastics inner tube 100 and 200 end section of the modified plastics outer tube are in same plane at this time
It is interior, at this time to seccotine is perfused in gap between the modified plastics inner tube 100 and the modified plastics outer tube 200, strongly
The perfusion depth of glue is 10cm-30cm.
Further, further includes: heating method when mixing in the S1 to material uses electrically heated mode.
Further, further includes: spray painting color selected by the spray painting bed course 300 sprayed in the S3 is black, by
It can absorb heat in black, facilitating using the spray painting bed course 300 of black is that phosphor powder layer 400 carries out filling energy, so that fluorescent powder fills energy
More.
Experimental example 1
The performance of the modified polypropylene plastic tubing made to Examples 1 to 3 is tested, and test result is as shown in table 1.Wherein
Impact strength is tested according to GB/T15142-2001.Wherein tensile modulus of elasticity is tested according to ISO527-2.The wherein degree of cross linking
It is tested according to GB/T18474-2001.Wherein stress crack resistant is 80 °C in temperature, and pressure is tested under conditions of being 4MPa.
Table 1 is modified polypropylene plastic pipe performance test result:
Table 1:
| Project | Resist impact strength KJ/ ㎡ | Tensile modulus of elasticity/MPa | The degree of cross linking/% | Stress crack resistant/h |
| The made plastic pipe of embodiment 1 | 42 | 950 | 75 | 1200 |
| The made plastic pipe of embodiment 2 | 48 | 990 | 79 | 1260 |
| The made plastic pipe of embodiment 3 | 50 | 1020 | 82 | 1300 |
It should be noted that, in this document, relational terms such as first and second and the like be used merely to an entity or
Person's operation is distinguished with another entity or operation, is appointed without necessarily requiring or implying existing between these entities or operation
What this actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of modified polypropylene plastic tubing characterized by comprising
Paint bed course；
Phosphor powder layer；
Modified plastics inner tube prepares the raw material and its parts by weight of the modified plastics inner tube are as follows: and 100 parts of isotactic polypropylene, point
2 parts -15 parts of powder, 10 parts -25 parts and 10 parts -30 parts of magnetic iron powder of expanding material；And
Modified plastics outer tube prepares the raw material and its parts by weight of the modified plastics outer tube are as follows: and 100 parts of isotactic polypropylene, point
2 parts -15 parts of powder, 10 parts -25 parts of expanding material, 1.5 parts -3 parts and 0.3 part -1.2 parts of stabilizer of plastics antioxidant；
Wherein, spray painting bed course even application is in the modified plastics inner tube outer surface, and the phosphor powder layer uniform fold is described
Spray painting bed course outer surface, the modified plastics inner tube outer surface are plugged on after spraying the spray painting bed course and the phosphor powder layer
The modified plastics outer tube.
2. a kind of modified polypropylene plastic tubing according to claim 1, which is characterized in that further include:
The isotactic polypropylene are as follows: relative molecular weight is 5500~7500, and melt index is 1.2g/min~1.8g/min, etc.
Normality >=93.
3. a kind of modified polypropylene plastic tubing according to claim 1, which is characterized in that further include:
The dispersing agent are as follows: any one in barium stearate or calcium stearate.
4. a kind of modified polypropylene plastic tubing according to claim 1, which is characterized in that further include:
The expanding material are as follows: maleic anhydride graft compatilizer.
5. a kind of modified polypropylene plastic tubing according to claim 1, which is characterized in that further include:
The plastics antioxidant are as follows: combined between polyolefin, polyvinyl chloride and nylon any of them or two kinds.
6. a kind of modified polypropylene plastic tubing according to claim 1, which is characterized in that further include:
The stabilizer are as follows: zinc stearate, calcium, any one in magnesium.
7. a kind of preparation method of modified polypropylene plastic tubing according to claim 1, which is characterized in that including following
Step:
S1, raw material mixing:
Isotactic polypropylene part is taken, it 2 parts -15 parts of dispersing agent, 10 parts -25 parts and 10 parts -30 parts of magnetic iron powder of expanding material, first will be above-mentioned
It is mixed that isotactic polypropylene, dispersing agent and magnetic iron powder in raw material launch the progress heating stirring in non-ferrous canister simultaneously
It closes, heating temperature is higher than 5 DEG C -10 DEG C of isotactic polypropylene melting temperature, when isotactic polypropylene, dispersing agent and magnetic iron powder are non-ferrous
After melting mixing completely in canister, then above-mentioned expanding material is added into above-mentioned non-ferrous canister and continues to stir, when
Stop heating after other materials is sufficiently mixed in the expanding material and non-ferrous canister, the material completed to above-mentioned mixing is cold
But the modified plastics inner tube raw material is obtained afterwards；
It takes isotactic polypropylene part, 2 parts -15 parts of dispersing agent, 10 parts -25 parts of expanding material, 1.5 parts -3 parts of plastics antioxidant and stablizes
0.3 part -1.2 parts of agent, isotactic polypropylene, dispersing agent, plastics antioxidant and stabilizer are launched non-ferrous simultaneously first
Heating stirring mixing is carried out in canister, heating temperature is higher than 5 DEG C -10 DEG C of isotactic polypropylene melting temperature, when isotactic poly- third
After alkene, dispersing agent, plastics antioxidant and stabilizer melt mixing completely in non-ferrous canister, then to above-mentioned non-ferric
Above-mentioned expanding material is added in matter canister and continues to stir, when the expanding material and other materials in non-ferrous canister fill
Stop heating after dividing mixing, obtains the modified plastics outer tube raw material after the material cooling that above-mentioned mixing is completed；
S2, hot melt extruded molding:
By modified plastics inner tube raw material obtained in the S1 and modified plastics outer tube raw material be individually positioned in extruder into
Row hot melt extruded molding, wherein carrying out the tubing that hot melt extruded forms using modified plastics inner tube raw material is modified plastics
Inner tube, carrying out the tubing that hot melt extruded forms using modified plastics outer tube raw material is modified plastics outer tube；And it is squeezed utilizing
Press by adjusting the setting to finished product caliber, moulds modified plastics inner tube raw material and modified plastics outer tube raw material so that being modified
Expect that outer tube finished product internal diameter is 10mm bigger than modified plastics inner tube finished product outer diameter size；
S3, spray-on coating:
Firstly, suitable fluorescent powder is taken to place in the mixing container, it is appropriate to be added in the mixing vessel where Xiang Shangshu fluorescent powder
Varnish and stirring obtain fluorescent powder mixed liquor so that fluorescent powder can be uniformly distributed in varnish；
Secondly, pipe surface in the modified plastics obtained in the S2 is cleared up, after the completion of cleaning outside modified plastics inner tube
Surface even application is again completed above-mentioned configuration after the bed course that paints parches completely glimmering with a thickness of the spray painting bed course of 1mm-2mm
Light powder mixed liquor, which is uniformly brushed, forms phosphor powder layer in spray painting bed course outer surface, and the brush of the phosphor powder layer after parching completely
It applies with a thickness of 2mm-3mm；
S4, casing:
Outer surface in the S3 had into the modified plastics inner tube of the spray painting bed course and phosphor powder layer insertion modified modeling
Expect outer tube, intercepts the finished sleeve of the modified plastics inner tube and the modified plastics outer tube equal length, so that at
The modified plastics inner tube and the modified plastics outer tube length dimension in product casing is identical, then the modification at this time
Plastic inner pipe and modified plastics outer tube end section are in same plane, at this time to the modified plastics inner tube and
Seccotine is perfused between the modified plastics outer tube in gap, the perfusion depth of seccotine is 10cm-30cm.
8. a kind of preparation method of modified polypropylene plastic tubing according to claim 7, which is characterized in that further include:
Heating method when mixing in the S1 to material uses electrically heated mode.
9. a kind of preparation method of modified polypropylene plastic tubing according to claim 1, which is characterized in that further include:
Spray painting color selected by the spray painting bed course sprayed in the S3 is black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271556.9A CN109386667A (en) | 2018-10-29 | 2018-10-29 | A kind of modified polypropylene plastic tubing and preparation method thereof |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110964151A (en) * | 2019-12-25 | 2020-04-07 | 浙江鑫牛管业有限公司 | Preparation method of magnetic powder modified PPR material and method for processing pipe by using same |
| CN111734890A (en) * | 2020-06-29 | 2020-10-02 | 连云港市鼎鑫电力器材有限公司 | Modified polypropylene plastic pipe and preparation method thereof |
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