CN109666212A - A kind of high fire-retardance MPP electric power protection pipe and preparation method thereof - Google Patents
A kind of high fire-retardance MPP electric power protection pipe and preparation method thereof Download PDFInfo
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- 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
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- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention discloses a kind of high fire-retardance MPP electric power protection pipe and preparation method thereof, MPP electric power protection pipe manufacture material includes following composition by weight: polypropylene: 20-30 parts；Flame retardant viscose fiber: 8-15 parts；Polyhedral silsesquioxane: 4-6 parts；Deionized water: 30-60 parts；Polypropylene flame redardant eyeball fiber: 4-6 parts；Zinc oxide: 1-2 parts；Fire retardant: 3-6 parts；Lubricant: 4-6 parts；CPE resin: 8-12 parts.The present invention itself just has stronger anti-flammability by the way that flame retardant viscose fiber and polypropylene flame redardant eyeball fiber is added, while flame retardant viscose fiber also has certain cementability；And polyhedral silsesquioxane is a kind of distinctive organic silicon fibre retardant; excellent fire-retardant, mechanics and thermal property can be shown under extremely low additive amount; along with complementing each other with fire retardant; and then it can further improve the flame retardant property of MPP electric power protection pipe; there is inoxidizability simultaneously, preparation method is scientific and reasonable.
Description
Technical field
The present invention relates to tubing technical field, specially a kind of high fire-retardance MPP electric power protection pipe and preparation method thereof.
Background technique
MPP power pipe uses modified polypropene for main raw material(s), is that need not largely dredge, cut the earth and destroy road surface,
The construction works such as the inferior Special zone roughing-in in road, railway, building, riverbed, cable.With traditional " grooving pipe laying method "
It compares, no-dig technique power pipe engineering more adapts to current environmental requirement, dusty, the traffic caused by removing because of traditional construction
The factors that disturb residents such as obstruction, this technology can also be in some regional pipeline installations that can not implement to excavate operation, such as paleovolcanic structures
Area, business district, crops and farmland protection area, highway, river etc..
CN107540930A provides a kind of MPP power cable protecting pipe, and modified polypropene is made, with quality percentage
Than meter, the modified polypropene is consisted of the following compositions: polypropylene 65%-80%；Polyolefin elastomer 15%-25%；Nanometer
Compound particle 3%-10%；Beta crystal-type nucleater 0.1%-2%, the nano-complex particle are that surface is attached with titanium dioxide silicon grain
The calcium carbonate particle of son.Although having the following advantages that and effect: using polypropylene, polyolefin elastomer, nano-complex particle shape
At poly-blended system, polyolefin elastomer plays the role of toughening to polypropylene, and nano-complex particle has both silica
With the effect of calcium carbonate particle, the tensile strength, impact strength and ring stiffness of modified polypropene are promoted, while further being increased
It is tough, it acts synergistically after beta crystal-type nucleater is added with calcium carbonate particle, changes polypropylene from alpha-crystal form to beta crystal, further mention
The impact property of high modified polypropene has reached and has improved the comprehensive of the MPP power cable protecting pipe being made by modified polypropene
Close performance.But its anti-flammability is poor, is easily easily damaged under high temperature environment.
Summary of the invention
For above situation, to overcome the shortcomings of existing technologies, the present invention provide a kind of high fire-retardance MPP electric power protection pipe and
Preparation method, existing its anti-flammability of MPP power pipe of effective solution is poor, is easily easily damaged under high temperature environment
Problem.
To achieve the above object, the invention provides the following technical scheme: manufacture material of the present invention includes following composition by weight:
Polypropylene: 20-30 parts, be a kind of hemicrystalline thermoplastic.Impact resistance with higher, engineering properties are strong
It is tough, resist a variety of organic solvents and acid and alkali corrosion；
Flame retardant viscose fiber: 8-15 parts, there is stronger anti-flammability, while flame retardant viscose fiber also has certain bonding
Ability；
Polyhedral silsesquioxane: 4-6 parts, be a kind of distinctive organic silicon fibre retardant, under extremely low additive amount just
It can show excellent fire-retardant, mechanics and thermal property；
Deionized water: 30-60 parts, deionized water refers to the pure water eliminated in after ionic species impurity；
Polypropylene flame redardant eyeball fiber: 4-6 parts, there is stronger anti-flammability；
Zinc oxide: 1-2 parts, zinc oxide is the oxide of zinc, is insoluble in water；
Fire retardant: 3-6 parts, fire retardant endothermic decomposition releases the noninflammability gas such as nitrogen, carbon dioxide, sulfur dioxide and ammonia
Body makes the imflammable gas concentration at fibrous material cracking be diluted to combustion limits hereinafter, or making part area at flame kernel
The oxygen in domain is insufficient, prevents burning from continuing, in addition, this non-flammable gases, there are also radiating and cooling effect, flame retardant effect is significant；
Lubricant: it is 4-6 parts, nontoxic, there is excellent heat resistance and mobility；
CPE resin: 8-12 parts, auxiliary material.
According to the above technical scheme, the fire retardant is complex intumescent flame retardant, formula composition are as follows: ammonium polyphosphate
10-50 parts, 5-20 parts of pentaerythrite, 20-40 parts of melamine, 1-5 parts of high-molecular organic material, 1-2 parts of dispersing agent, preparation
Method is that aromatic ring or heteroaromatic are first introduced on macromolecular chain, is then become by cross-linking reaction between linear macromolecule chain in fiber
Three-dimensional crosslinking structure is cross-linked to form space network i.e. finally by oxygen, nitrogen-atoms and the metal ion-chelant in macromolecular
It can.
According to the above technical scheme, the lubricant is three hydroxy stearic acid ester of glycerol.
A kind of preparation method of high fire-retardance MPP electric power protection pipe, includes the following steps: to claim by above-mentioned parts by weight
Raw material after taking, which is added in blender, to be sufficiently stirred, and polypropylene, flame retardant viscose fiber, polyhedron times are specially first sequentially added
Half siloxanes, deionized water, polypropylene flame redardant eyeball fiber are simultaneously stirred, and are obtained mixture A, are added in obtaining mixture A
Zinc oxide, CPE resin, speed of agitator is 400-500r/min at this time, and mixing time 6-7min is stirred until homogeneous, finally adds
Fire retardant and lubricant are stirred at 100-110 DEG C, and speed of agitator is 700-900r/min at this time, are stirred until homogeneous；Then it carries out
Two-wheel is plasticated and extrusion molding；Finally tube outer diameter is driven by the molding machine automatically controlled, module, which vacuumizes, to be cooled down
Sizing；Pipe material inner wall vacuumizes water cooling and shaping by internal diameter calibration sleeve of determining.
According to the above technical scheme, the two-wheel middle A that plasticates rolls the speed ratio 1:1.1-1.2, temperature 155-160 of turbine
℃；B rolls the speed ratio 1:1.12-1.25 of turbine, and temperature is 160-165 DEG C.
According to the above technical scheme, the extrusion molding is specially that mixed material is first added to double screw extruder
It is interior, heating: by heater, temperature is increased to 180 DEG C -300 DEG C, squeezes out: under conditions of 180 DEG C -300 DEG C, making
With double screw extruder melting extrusion.
According to the above technical scheme, the preparation method further includes that will carry out counting long cutting after cooling and shaping, is stacked,
Inspection and warehousing finished products.
The present invention itself just has stronger anti-flammability by the way that flame retardant viscose fiber and polypropylene flame redardant eyeball fiber is added,
Flame retardant viscose fiber also has certain cementability simultaneously；And polyhedral silsesquioxane is a kind of distinctive organosilicon resistance
Agent is fired, excellent fire-retardant, mechanics and thermal property can be shown under extremely low additive amount, along with mutually auxiliary with fire retardant
It coordinates, and then can further improve the flame retardant property of MPP electric power protection pipe, while there is inoxidizability, preparation method section
It is reasonable to learn.
Specific embodiment
A specific embodiment of the invention is described in further details below.
Embodiment one, manufacture material of the present invention include following composition by weight:
Polypropylene: 20 parts；
Flame retardant viscose fiber: 8 parts；
Polyhedral silsesquioxane: 4 parts；
Deionized water: 30 parts；
Zinc oxide: 1 part；
Fire retardant: 3 parts；
Lubricant: 4 parts；
CPE resin: 8 parts.
According to the above technical scheme, the fire retardant is complex intumescent flame retardant, formula composition are as follows: ammonium polyphosphate
10-50 parts, 5-20 parts of pentaerythrite, 20-40 parts of melamine, 1-5 parts of high-molecular organic material, 1-2 parts of dispersing agent, preparation
Method is that aromatic ring or heteroaromatic are first introduced on macromolecular chain, is then become by cross-linking reaction between linear macromolecule chain in fiber
Three-dimensional crosslinking structure is cross-linked to form space network i.e. finally by oxygen, nitrogen-atoms and the metal ion-chelant in macromolecular
It can.
According to the above technical scheme, the lubricant is three hydroxy stearic acid ester of glycerol.
A kind of preparation method of high fire-retardance MPP electric power protection pipe, includes the following steps: to claim by above-mentioned parts by weight
Raw material after taking, which is added in blender, to be sufficiently stirred, and polypropylene, flame retardant viscose fiber, polyhedron times are specially first sequentially added
Half siloxanes, deionized water, polypropylene flame redardant eyeball fiber are simultaneously stirred, and are obtained mixture A, are added in obtaining mixture A
Zinc oxide, CPE resin, speed of agitator is 400-500r/min at this time, and mixing time 6-7min is stirred until homogeneous, finally adds
Fire retardant and lubricant are stirred at 100-110 DEG C, and speed of agitator is 700-900r/min at this time, are stirred until homogeneous；Then it carries out
Two-wheel is plasticated and extrusion molding；Finally tube outer diameter is driven by the molding machine automatically controlled, module, which vacuumizes, to be cooled down
Sizing；Pipe material inner wall vacuumizes water cooling and shaping by internal diameter calibration sleeve of determining.
According to the above technical scheme, the two-wheel middle A that plasticates rolls the speed ratio 1:1.1-1.2, temperature 155-160 of turbine
℃；B rolls the speed ratio 1:1.12-1.25 of turbine, and temperature is 160-165 DEG C.
According to the above technical scheme, the extrusion molding is specially that mixed material is first added to double screw extruder
It is interior, heating: by heater, temperature is increased to 180 DEG C -300 DEG C, squeezes out: under conditions of 180 DEG C -300 DEG C, making
With double screw extruder melting extrusion.
According to the above technical scheme, the preparation method further includes that will carry out counting long cutting after cooling and shaping, is stacked,
Inspection and warehousing finished products.
Embodiment two, manufacture material of the present invention include following composition by weight:
Polypropylene: 30 parts；
Flame retardant viscose fiber: 15 parts；
Polyhedral silsesquioxane: 6 parts；
Deionized water: 60 parts；
Zinc oxide: 2 parts；
Fire retardant: 6 parts；
Lubricant: 6 parts；
CPE resin: 12 parts.
According to the above technical scheme, the fire retardant is complex intumescent flame retardant, formula composition are as follows: ammonium polyphosphate
10-50 parts, 5-20 parts of pentaerythrite, 20-40 parts of melamine, 1-5 parts of high-molecular organic material, 1-2 parts of dispersing agent, preparation
Method is that aromatic ring or heteroaromatic are first introduced on macromolecular chain, is then become by cross-linking reaction between linear macromolecule chain in fiber
Three-dimensional crosslinking structure is cross-linked to form space network i.e. finally by oxygen, nitrogen-atoms and the metal ion-chelant in macromolecular
It can.
According to the above technical scheme, the lubricant is three hydroxy stearic acid ester of glycerol.
A kind of preparation method of high fire-retardance MPP electric power protection pipe, includes the following steps: to claim by above-mentioned parts by weight
Raw material after taking, which is added in blender, to be sufficiently stirred, and polypropylene, flame retardant viscose fiber, polyhedron times are specially first sequentially added
Half siloxanes, deionized water, polypropylene flame redardant eyeball fiber are simultaneously stirred, and are obtained mixture A, are added in obtaining mixture A
Zinc oxide, CPE resin, speed of agitator is 400-500r/min at this time, and mixing time 6-7min is stirred until homogeneous, finally adds
Fire retardant and lubricant are stirred at 100-110 DEG C, and speed of agitator is 700-900r/min at this time, are stirred until homogeneous；Then it carries out
Two-wheel is plasticated and extrusion molding；Finally tube outer diameter is driven by the molding machine automatically controlled, module, which vacuumizes, to be cooled down
Sizing；Pipe material inner wall vacuumizes water cooling and shaping by internal diameter calibration sleeve of determining.
According to the above technical scheme, the two-wheel middle A that plasticates rolls the speed ratio 1:1.1-1.2, temperature 155-160 of turbine
℃；B rolls the speed ratio 1:1.12-1.25 of turbine, and temperature is 160-165 DEG C.
According to the above technical scheme, the extrusion molding is specially that mixed material is first added to double screw extruder
It is interior, heating: by heater, temperature is increased to 180 DEG C -300 DEG C, squeezes out: under conditions of 180 DEG C -300 DEG C, making
With double screw extruder melting extrusion.
According to the above technical scheme, the preparation method further includes that will carry out counting long cutting after cooling and shaping, is stacked,
Inspection and warehousing finished products.
Comparative example one, manufacture material of the present invention include following composition by weight:
Polypropylene: 20 parts；
Deionized water: 30 parts；
Polypropylene flame redardant eyeball fiber: 4 parts；
Zinc oxide: 1 part；
Fire retardant: 3 parts；
Lubricant: 4 parts；
CPE resin: 8 parts.
According to the above technical scheme, the fire retardant is complex intumescent flame retardant, formula composition are as follows: ammonium polyphosphate
10-50 parts, 5-20 parts of pentaerythrite, 20-40 parts of melamine, 1-5 parts of high-molecular organic material, 1-2 parts of dispersing agent, preparation
Method is that aromatic ring or heteroaromatic are first introduced on macromolecular chain, is then become by cross-linking reaction between linear macromolecule chain in fiber
Three-dimensional crosslinking structure is cross-linked to form space network i.e. finally by oxygen, nitrogen-atoms and the metal ion-chelant in macromolecular
It can.
According to the above technical scheme, the lubricant is three hydroxy stearic acid ester of glycerol.
A kind of preparation method of high fire-retardance MPP electric power protection pipe, includes the following steps: to claim by above-mentioned parts by weight
Raw material after taking, which is added in blender, to be sufficiently stirred, and polypropylene, flame retardant viscose fiber, polyhedron times are specially first sequentially added
Half siloxanes, deionized water, polypropylene flame redardant eyeball fiber are simultaneously stirred, and are obtained mixture A, are added in obtaining mixture A
Zinc oxide, CPE resin, speed of agitator is 400-500r/min at this time, and mixing time 6-7min is stirred until homogeneous, finally adds
Fire retardant and lubricant are stirred at 100-110 DEG C, and speed of agitator is 700-900r/min at this time, are stirred until homogeneous；Then it carries out
Two-wheel is plasticated and extrusion molding；Finally tube outer diameter is driven by the molding machine automatically controlled, module, which vacuumizes, to be cooled down
Sizing；Pipe material inner wall vacuumizes water cooling and shaping by internal diameter calibration sleeve of determining.
According to the above technical scheme, the two-wheel middle A that plasticates rolls the speed ratio 1:1.1-1.2, temperature 155-160 of turbine
℃；B rolls the speed ratio 1:1.12-1.25 of turbine, and temperature is 160-165 DEG C.
According to the above technical scheme, the extrusion molding is specially that mixed material is first added to double screw extruder
It is interior, heating: by heater, temperature is increased to 180 DEG C -300 DEG C, squeezes out: under conditions of 180 DEG C -300 DEG C, making
With double screw extruder melting extrusion.
According to the above technical scheme, the preparation method further includes that will carry out counting long cutting after cooling and shaping, is stacked,
Inspection and warehousing finished products.
Comparative example two, manufacture material of the present invention include following composition by weight:
Polypropylene: 20 parts；
Flame retardant viscose fiber: 8 parts；
Polyhedral silsesquioxane: 4 parts；
Deionized water: 30 parts；
Zinc oxide: 1 part；
Lubricant: 4 parts；
CPE resin: 8 parts.
According to the above technical scheme, the fire retardant is complex intumescent flame retardant, formula composition are as follows: ammonium polyphosphate
10-50 parts, 5-20 parts of pentaerythrite, 20-40 parts of melamine, 1-5 parts of high-molecular organic material, 1-2 parts of dispersing agent, preparation
Method is that aromatic ring or heteroaromatic are first introduced on macromolecular chain, is then become by cross-linking reaction between linear macromolecule chain in fiber
Three-dimensional crosslinking structure is cross-linked to form space network i.e. finally by oxygen, nitrogen-atoms and the metal ion-chelant in macromolecular
It can.
According to the above technical scheme, the lubricant is three hydroxy stearic acid ester of glycerol.
A kind of preparation method of high fire-retardance MPP electric power protection pipe, includes the following steps: to claim by above-mentioned parts by weight
Raw material after taking, which is added in blender, to be sufficiently stirred, and polypropylene, flame retardant viscose fiber, polyhedron times are specially first sequentially added
Half siloxanes, deionized water, polypropylene flame redardant eyeball fiber are simultaneously stirred, and are obtained mixture A, are added in obtaining mixture A
Zinc oxide, CPE resin, speed of agitator is 400-500r/min at this time, and mixing time 6-7min is stirred until homogeneous, finally adds
Fire retardant and lubricant are stirred at 100-110 DEG C, and speed of agitator is 700-900r/min at this time, are stirred until homogeneous；Then it carries out
Two-wheel is plasticated and extrusion molding；Finally tube outer diameter is driven by the molding machine automatically controlled, module, which vacuumizes, to be cooled down
Sizing；Pipe material inner wall vacuumizes water cooling and shaping by internal diameter calibration sleeve of determining.
According to the above technical scheme, the two-wheel middle A that plasticates rolls the speed ratio 1:1.1-1.2, temperature 155-160 of turbine
℃；B rolls the speed ratio 1:1.12-1.25 of turbine, and temperature is 160-165 DEG C.
According to the above technical scheme, the extrusion molding is specially that mixed material is first added to double screw extruder
It is interior, heating: by heater, temperature is increased to 180 DEG C -300 DEG C, squeezes out: under conditions of 180 DEG C -300 DEG C, making
With double screw extruder melting extrusion.
According to the above technical scheme, the preparation method further includes that will carry out counting long cutting after cooling and shaping, is stacked,
Inspection and warehousing finished products.
Experimental example
Experimental subjects: using MPP electric power protection pipe obtained by the embodiment of the present invention one as experimental group A1 and embodiment two
Obtained MPP electric power protection pipe chooses MPP electric power protection pipe obtained in comparative example one as a comparison as experimental group A2
It organizes MPP electric power protection pipe obtained in B1 and comparative example two and organizes B2 as a comparison.
Experiment purpose: each flame retardant rating and inoxidizability (mm/a) are tested.
Experimental method: according to national building materials plank examination criteria and national standard GB-18580-2001, by this experimental group A1 and reality
It tests group A2 and chooses the contrast groups B1 and contrast groups B2 in comparative example, each group flame retardant rating is tested using special instrument,
And experimental result is recorded, it is then reacted by Fenton and generates OH, capture by salicylic acid OH generates coloring matter, which exists
510nm has characteristic absorption, by measuring the obtained product of capture by salicylic acid OH, determines the clearance rate of OH to determine antioxygen
The property changed, and record experimental result.
Experimental result table:
Through the foregoing embodiment, comparative example and detection example are it is found that B1 and B2 is equal because lacking part fire proofing, so that resistance
Combustion grade does not have the height of A1 and A2, and inoxidizability is respectively less than 01mm/a, therefore MPP electric power protection pipe provided by the invention has
The strong characteristic of high fire-retardance, inoxidizability.
The present invention itself just has stronger anti-flammability by the way that flame retardant viscose fiber and polypropylene flame redardant eyeball fiber is added,
Flame retardant viscose fiber also has certain cementability simultaneously；And polyhedral silsesquioxane is a kind of distinctive organosilicon resistance
Agent is fired, excellent fire-retardant, mechanics and thermal property can be shown under extremely low additive amount, along with mutually auxiliary with fire retardant
It coordinates, and then can further improve the flame retardant property of MPP electric power protection pipe, while there is inoxidizability, preparation method section
It is reasonable to learn.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of high fire-retardance MPP electric power protection pipe, which is characterized in that MPP electric power protection pipe manufacture material includes following weight group
Part:
Polypropylene: 20-30 parts；
Flame retardant viscose fiber: 8-15 parts；
Polyhedral silsesquioxane: 4-6 parts；
Deionized water: 30-60 parts；
Polypropylene flame redardant eyeball fiber: 4-6 parts；
Zinc oxide: 1-2 parts；
Fire retardant: 3-6 parts；
Lubricant: 4-6 parts；
CPE resin: 8-12 parts.
2. a kind of high fire-retardance MPP electric power protection pipe according to claim 1, which is characterized in that the fire retardant is compound
Expansion type flame retardant, formula composition are as follows: 10-50 parts of ammonium polyphosphate, 5-20 parts of pentaerythrite, 20-40 parts of melamine, organic
1-5 parts of high molecular material, 1-2 parts of dispersing agent, preparation method are that aromatic ring or heteroaromatic are first introduced on macromolecular chain, are then led to
Cross in fiber that cross-linking reaction becomes three-dimensional crosslinking structure between linear macromolecule chain, finally by macromolecular oxygen, nitrogen-atoms with
Metal ion-chelant is cross-linked to form space network.
3. a kind of high fire-retardance MPP electric power protection pipe according to claim 1, which is characterized in that the lubricant is glycerol
Three hydroxy stearic acid esters.
4. the preparation method of high fire-retardance MPP electric power protection pipe described in a kind of claim 1-3, which is characterized in that including as follows
Step: the raw material after weighing by above-mentioned parts by weight being added in blender and is sufficiently stirred, specially first sequentially add polypropylene,
Flame retardant viscose fiber, polyhedral silsesquioxane, deionized water, polypropylene flame redardant eyeball fiber are simultaneously stirred, and obtain mixture
Zinc oxide, CPE resin is added in A in obtaining mixture A, and speed of agitator is 400-500r/min, mixing time 6- at this time
7min is stirred until homogeneous, and is finally added fire retardant and lubricant and is stirred at 100-110 DEG C, and speed of agitator is 700-900r/ at this time
Min is stirred until homogeneous；Then two-wheel is carried out to plasticate and extrusion molding；The finally molding machine by tube outer diameter by automatic control
Transmission, module vacuumize carry out cooling and shaping；Pipe material inner wall vacuumizes water cooling and shaping by internal diameter calibration sleeve of determining.
5. a kind of preparation method of high fire-retardance MPP electric power protection pipe according to claim 4, which is characterized in that described double
The speed ratio 1:1.1-1.2 that the middle A that plasticates rolls turbine is taken turns, temperature is 155-160 DEG C；B rolls the speed ratio 1:1.12-1.25 of turbine, temperature
It is 160-165 DEG C.
6. a kind of preparation method of high fire-retardance MPP electric power protection pipe according to claim 4, which is characterized in that described to squeeze
Molding is specially and first mixed material is added in double screw extruder out, heats: by heater, temperature liter
It up to 180 DEG C -300 DEG C, squeezes out: under conditions of 180 DEG C -300 DEG C, using double screw extruder melting extrusion.
7. a kind of preparation method of high fire-retardance MPP electric power protection pipe according to claim 4, which is characterized in that the system
Preparation Method further includes that will carry out counting long cutting after cooling and shaping, is stacked, inspection and warehousing finished products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425035.4A CN109666212A (en) | 2018-11-27 | 2018-11-27 | A kind of high fire-retardance MPP electric power protection pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425035.4A CN109666212A (en) | 2018-11-27 | 2018-11-27 | A kind of high fire-retardance MPP electric power protection pipe and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358186A (en) * | 2019-07-04 | 2019-10-22 | 镇江华科通信设备有限公司 | A kind of heat-resistant fireproof MPP cable protection pipe and preparation method thereof |
| CN110406064A (en) * | 2019-07-04 | 2019-11-05 | 镇江华科通信设备有限公司 | A kind of production technology of outside diameter structure accurately MPP cable protection pipe |
| CN113307087A (en) * | 2021-05-28 | 2021-08-27 | 安徽杰蓝特新材料有限公司 | High-flame-retardancy MPP power cable pipe and processing technology thereof |
| CN117417596A (en) * | 2023-10-17 | 2024-01-19 | 无锡中水土工新材料有限公司 | Polypropylene geotextile and soft mattress |
| CN117417596B (en) * | 2023-10-17 | 2024-05-31 | 无锡中水土工新材料有限公司 | Polypropylene geotextile and soft mattress |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358186A (en) * | 2019-07-04 | 2019-10-22 | 镇江华科通信设备有限公司 | A kind of heat-resistant fireproof MPP cable protection pipe and preparation method thereof |
| CN110406064A (en) * | 2019-07-04 | 2019-11-05 | 镇江华科通信设备有限公司 | A kind of production technology of outside diameter structure accurately MPP cable protection pipe |
| CN113307087A (en) * | 2021-05-28 | 2021-08-27 | 安徽杰蓝特新材料有限公司 | High-flame-retardancy MPP power cable pipe and processing technology thereof |
| CN117417596A (en) * | 2023-10-17 | 2024-01-19 | 无锡中水土工新材料有限公司 | Polypropylene geotextile and soft mattress |
| CN117417596B (en) * | 2023-10-17 | 2024-05-31 | 无锡中水土工新材料有限公司 | Polypropylene geotextile and soft mattress |
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