CN110408146A - A kind of preparation method of high-strength anti-flaming architectural electricity threading tube material - Google Patents
A kind of preparation method of high-strength anti-flaming architectural electricity threading tube material Download PDFInfo
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- CN110408146A CN110408146A CN201910704795.7A CN201910704795A CN110408146A CN 110408146 A CN110408146 A CN 110408146A CN 201910704795 A CN201910704795 A CN 201910704795A CN 110408146 A CN110408146 A CN 110408146A
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
Abstract
The present invention relates to a kind of preparation methods of high-strength anti-flaming architectural electricity threading tube material, belong to electrical tubing technical field.The present invention is using neoprene modified polyvinyl chloride as matrix resin, magnesium hydroxide intercalation is used as filler into kaolin, filler is surface-treated with silane coupling agent, and it is carried out with matrix resin compound, in conjunction with auxiliary agents such as dispersing agent, stabilizers, a kind of high-strength anti-flaming architectural electricity threading tube material is prepared；Neoprene tensile strength with higher, elongation and reversible crystallinity, cementability are good；Neoprene and polyvinyl chloride constitute two-arch tunnel, inierpeneirating network structure is collectively formed in the material, under external force, large deformation occurs for network structure, consumes energy, plays toughening effect, under external force, rubber network plays the role of transmitting, dispersion, buffering and the absorption of energy, while rubber deformation is that raw rate is prolonged in fracture with higher, greatly improves material shock resistance.
Description
Technical field
The present invention relates to a kind of preparation methods of high-strength anti-flaming architectural electricity threading tube material, belong to electrical tubing technology
Field.
Background technique
With the rapid development of urbanization in China, a large amount of peasant is lived by transfer of rural to cities and towns, makes me in this way
State's tertiary industry is rapidly developed, in order to meet the demand for being transferred to cities and towns the people that live to substance and spiritual culture,
Will many fire fighting and rescues of auxiliary construction such as hotel, restaurant, market, large supermarket, library and singing and dancing entertainment place etc.,
Power supply line in these fire fighting and rescues has surface to apply two kinds with dark, and surface route is mainly paved on furred ceiling and floor
It is interior, but have more flammable combustible material in furred ceiling and floor, it you must use penetration pipe and the route of its inside protected
Otherwise shield can cause the safety of life and property of the people great because the reasons such as aging circuit occur short circuit and cause fire
Loss.
Penetration pipe full name " insulating electrical casing pipe for building " is a kind of tubing for being used to wear electric wire in electrical engineering field,
It is chiefly used in indoor normal environment and in high temperature, more dirt, the place for having vibration and fire-prone.The oxygen of common PVC penetration pipe refers to
Number OI (index of characterization flame retardant property, the bigger flame retardant property of index value are better) maximum value is 32, in the case of fire in it
The route in portion does not have good protective effect, so raising modification must be carried out to its flame retardant property；Dark wiring road is mainly
It is embedded in prefabricated board and wall, the compression strength maximum value of common PVC penetration pipe is 1250N, penetration pipe is embedded in pre-
Making sheet and within the walls when, not enough held very much due to the compression strength of spool and flatten spool, electric wire is threading in later period track laying
It wears to pass by pipe, is brought a lot of trouble to later period track laying, or even because certain circuit is worn and not set in the past to circuit
Meter scheme is modified, so raising must be modified to the compressive property of spool.
It can also be used in moist place.Existing spool has pvc pipe or modified PVC pipe mostly, and basic demand is anti-corrosion
It loses, is fire-retardant, should also have certain resistance to compression and bend resistance ability.Especially in certain special application fields, spool used is also required
There must be the performances such as antistatic, high flame retardant, comprehensive performance requires high.
Raw materials used polyvinyl chloride (PVC) belongs to self-extinguishing in PVC penetration pipe, but PVC can be released greatly in burning
The black smoke and toxic gas of amount.Such as HCl, CO, a small amount of phosgene, benzene, naphthalene aromatic compound.A large amount of personnel are caused in fire
It is choked to death and is died due to smog, this is subject to certain restrictions the application range of PVC.Meanwhile it being added and increasing in PVC pipe process
The auxiliary agents such as modeling agent, lubricant can also reduce the flame retardant property and smoke suppressing of material.So carrying out smoke-inhibiting flame retardant to PVC pipe
Modified research is increasingly taken seriously.Therefore, it develops and is seemed very necessary suitable for the flame-retardant smoke inhibition technology of PVC penetration pipe.
Application No. is 201610750178.7 patents of invention to disclose a kind of fire-resistant smoke-inhibiting PVC pipe and its production method,
The fire-resistant smoke-inhibiting PVC pipe includes the raw material of following parts by weight: where 80-100 parts of Corvic, nanometer anhydrous slufuric acid
It is 20-30 parts of calcium, 5-10 parts of anti-flaming smoke-inhibiting agent, 2-6 parts of compound stabilizer, 1-3 parts of modifying agent, 0.5-2.0 parts of PE wax, silane coupled
0.5-2 parts of agent, 0.2-0.5 parts of composite antioxidant.The invention raw material is simple and easy to get, low in cost, and toughness is high, and elongation is big,
Low temperature resistant good toughness, and black smoke and toxic gas that pvc pipe is discharged in burning can greatly be reduced, substantially reduce fire
The casualties as caused by smog asphyxia in accident.
Application No. is the patents of invention of 201510377254.X to disclose a kind of flame-proof PVC tubing and preparation method thereof, should
PVC pipe is by following mass parts at being grouped as: 45-55 parts of polyvinyl chloride resin, 35-45 parts of precipitated calcium carbonate, silane coupling agent 0.5-1
Part, 1-5 parts of stabilizer, 0.5-1.5 parts of paraffin, 1-3 parts of stearic acid, 0.5-1.5 parts of titanium dioxide, 1-2 parts of aluminium hydroxide, carbon black
0.5-1 parts, mentioned component is sequentially placed into mixing drum according to the ratio and is stirred 3min, is successively heated, is co-extrusion, cold
But, traction, excision forming, finally obtain finished product.PVC pipe surface hardness of the invention and tensile strength are high, and ageing resistance
Good, normal service life was up to 50 years or more, acid and alkali-resistance fine corrosion resistance, was suitable for industrial wastewater discharge and conveying, and
Fire retardant property is excellent.
Application No. is 201610638445.1 patent of invention disclose a kind of heat-resistant fireproof anti-aging PVC tubing and its
Preparation method, the heat-resistant fireproof anti-aging PVC tubing, the component including following mass fraction: 70~90 parts of PVC resin powders,
20~50 parts of fillers, 1~3 part of heat stabilizer, 0.5~1 part of ACR resin, 2~4 parts of CPE, 0.3~0.5 part of lubricant, 0.2
~0.5 part of carbon black, 0.5~1 part of aluminium hydroxide, 1~4 part of fire retardant and 0.1~0.2 part of age resister, preparation method include mixed
Conjunction, extrusion, sizing, cooling and cutting.Heat-resistant fireproof anti-aging PVC tubing described in the invention, passes through matching for each component
The PVC pipe heat resistance with higher and anti-flammability for closing preparation, still maintain in the Xenon lamp weather resistance test of long period
There is biggish tensile strength.
As it can be seen that currently, production flame-proof PVC Guan Jun is the method using additional fire retardant, and common fire retardant is halogen
Fire retardant (contains chlorine or brominated flame-retardant, such as tetrabromobisphenol A, deca-BDE, Brominated Polystyrene, pentabromotoluene and hexabromo ring
Dodecane etc.).As outer additive flame retardant, such material using generally existing environmental pollution the problem of, and material after being applicable in
The defects of expecting that flame retardant property is not high and tearing toughness is poor.And if this based flame retardant of single use, flame retardant effect is undesirable, adds
Dosage is big, not only increases production cost, and affects the mechanical property of spool.
Summary of the invention
The technical problems to be solved by the invention: it is poor for penetration pipe compressive property in the prior art, and flame retardant property
Poor problem provides a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) polyvinyl chloride, neoprene, maleic anhydride, sodium hydride are taken, polyvinyl chloride, neoprene and maleic anhydride are mixed
It is placed in torque rheometer, is stirred to react processing to get mixed material, be added polyvinyl chloride in mixed material, stir process,
It is cooled to room temperature to get matrix resin；
(2) it is that 50% magnesium hydroxide solution and kaolin mix by mass fraction, seals stir process to get suspension, will suspend
Liquid is filtered to get filter residue, and filter residue is placed in the baking oven that temperature is 60~70 DEG C and is dried to constant weight, is cooled to room temperature, i.e.,
Obtain filler；
(3) in mass ratio 1: 5 titanate coupling agent and isopropanol are uniformly mixed to get modifying agent, filler and modifying agent is mixed
It closes, modification liquid is filtered up to precipitating to get modification liquid, be washed with deionized precipitating 2~3 times, juxtaposition by constant temperature stir process
It dries in the baking oven that temperature is 60~70 DEG C to constant weight, is cooled to room temperature to get modified filler；
(4) matrix resin, modified filler, dispersing agent stearic acid, stabilizer Lanthanum Stearate, vulcanizing agent sulphur, antioxidant 4020 are taken,
Matrix resin, modified filler, dispersing agent stearic acid, stabilizer Lanthanum Stearate, vulcanizing agent sulphur, antioxidant 4020 are mixed, mixed
Refining processing is to get rubber compound；
(5) rubber compound is placed in double screw extruder extruding pelletization to get presoma, it is 80~90 that presoma, which is placed in temperature,
DEG C baking oven in after dry 3~5h, and injection molding is handled, and is cooled to room temperature to get high-strength anti-flaming architectural electricity penetration pipe
Material.
Polyvinyl chloride described in step (1), neoprene, maleic anhydride, the ratio between sodium hydride are respectively as follows: by weight
Number meter weighs 20~30 parts of polyvinyl chloride, 1~10 part of neoprene, 1~3 part of maleic anhydride, 0.3~0.5 part of hydrogenation respectively
Sodium.
Step is stirred to react processing step described in (1) are as follows: mixes polyvinyl chloride, neoprene and maleic anhydride and is placed in
It is 100~105 DEG C in temperature, revolving speed is that 1~2h is reacted under 40~50r/min in torque rheometer.
Stir process step described in step (1) are as follows: polyvinyl chloride is added in mixed material, is 60~70r/ in revolving speed
Min, temperature are that 30~40min is stirred at 60~70 DEG C.
Sealing stir process step described in step (2) are as follows: in mass ratio 5: 1 is molten for 50% magnesium hydroxide by mass fraction
Liquid and kaolin mixing, low whipping speed are sealing stirring 2~3 days under 300~400r/min.
Constant temperature stir process step described in step (3) are as follows: in mass ratio 1: 3 mixes filler and modifying agent, in temperature
It is 75~85 DEG C, mixing speed is that constant temperature stirs 1~2h under 500~600r/min.
Matrix resin described in step (4), modified filler, dispersing agent stearic acid, stabilizer Lanthanum Stearate, vulcanizing agent sulphur
Ratio between sulphur, antioxidant 4020 is respectively as follows: according to parts by weight, weigh respectively 30~40 parts of matrix resins, 5~15 parts change
Property filler, 1~3 part of dispersing agent stearic acid, 1~5 part of stabilizer Lanthanum Stearate, 0.4~0.7 part of vulcanizing agent sulphur, 0.5~0.7
Part antioxidant 4020.
Mixing process step described in step (4) are as follows: matrix resin, modified filler, dispersing agent stearic acid, stabilizer is hard
Resin acid lanthanum, vulcanizing agent sulphur, antioxidant 4020 mixing, low whipping speed are 60~80r/min, and temperature is to be kneaded at 60~70 DEG C
15~20min.
Extruding pelletization step described in step (5) are as follows: by rubber compound be placed in double screw extruder temperature be 160~
170 DEG C, engine speed is 60~80r/min, and feeding revolving speed is 20~30r/min, and cutting and drawing revolving speed is to squeeze under 180~200r/min
It is granulated out.
Injection molding processing step described in step (5) are as follows: be placed on injection molding machine temperature be 160~180 DEG C at be molded
Molding.
The present invention is compared with other methods, and advantageous effects are:
(1) using neoprene modified polyvinyl chloride as matrix resin, magnesium hydroxide intercalation is used as into kaolin and fills out the present invention
Material, is surface-treated filler with silane coupling agent, and compound with matrix resin progress, helps in conjunction with dispersing agent, stabilizer etc.
A kind of high-strength anti-flaming architectural electricity threading tube material is prepared in agent；Neoprene has a good physical mechanical property, oil resistant,
It is heat-resisting, resistance to combustion, resistance to daylight, resistance to ozone, acid and alkali-resistance, chemical-resistant reagent, tensile strength, elongation and reversible knot with higher
Crystalline substance, cementability are good；Neoprene and polyvinyl chloride constitute two-arch tunnel, collectively form inierpeneirating network structure, In in the material
Under external force, large deformation occurs for network structure, consumes energy, plays toughening effect, rubber forms contiguous network structure will be first
Grade particle is enclosed in center, and under external force, rubber network plays the role of transmitting, dispersion, buffering and the absorption of energy, from
And it avoids stress raisers from generating crack, while rubber deformation is that raw rate is prolonged in fracture with higher, can produce crazing and cuts
It cuts band and absorbs big energy, greatly improve material shock resistance；
(2) present invention in magnesium hydroxide by being thermally decomposed when release in conjunction with water, a large amount of latent heat is absorbed, to reduce its institute
Surface temperature of the synthetic material of filling in flame has and polymer is inhibited to decompose and carry out to generated fuel gas cold
But effect, the magnesia for decomposing generation is good refractory material again, can also help the fire resistance for improving synthetic material, together
When it release vapor also can be used as a kind of smoke suppressant, magnesium hydroxide is in production, use and waste procedures without nuisance
Matter discharge, and the acidity generated in combustion process and corrosive gas can also be neutralized, there is good compatibility with matrix resin；
(3) the maximum feature of coupling agent molecule structure is containing 2 groups that chemical property is different in molecule in the present invention, it is
It is made of the group SiOR and organophilic group Y of close inorganic matter, close inorganic group SiOR is easy to play chemistry with filler surface
Reaction, and organic-philic group Y is easy to chemically react with the high-polymer molecule and the free radical decomposited, therefore coupling agent quilt
Referred to as " molecular bridge ", to improve the interface interaction between filler and organic matter, to greatly improve the performance of composite material；It is even
Join the existing hydrolization group reacted with kaolin of agent, and have the functional group reacted with matrix resin, when it is distributed in kaolin
When on the interface of matrix resin, be combined together to material tight that this 2 kinds of properties can be made different, so as to improve kaolin with
Compatibility between matrix resin, while also improving dispersion effect of the kaolin in matrix resin, therefore kaolin effectively increases
The strong mechanical property of threading tube material.
Specific embodiment
According to parts by weight, weigh respectively 20~30 parts of polyvinyl chloride, 1~10 part of neoprene, 1~3 part of maleic anhydride,
Polyvinyl chloride, neoprene and maleic anhydride are mixed and are placed in torque rheometer, be in temperature by 0.3~0.5 part of sodium hydride
100~105 DEG C, revolving speed is that polychlorostyrene second is added to get mixed material in 1~2h of reaction in mixed material under 40~50r/min
Alkene is 60~70r/min in revolving speed, and temperature is that 30~40min is stirred at 60~70 DEG C, is cooled to room temperature to get matrix resin；
In mass ratio 5: 1 mix mass fraction for 50% magnesium hydroxide solution and kaolin, and low whipping speed is 300~400r/min
Lower sealing stirs 2~3 days to get suspension, suspension is filtered to get filter residue, it is 60~70 that filter residue, which is placed in temperature,
DEG C baking oven in dry to constant weight, be cooled to room temperature to get filler；In mass ratio 1: 5 mixes titanate coupling agent and isopropanol
It closes and uniformly mixes filler and modifying agent to get modifying agent, in mass ratio 1: 3, be 75~85 DEG C in temperature, mixing speed is
Constant temperature stirs 1~2h to get modification liquid under 500~600r/min, modification liquid is filtered up to precipitating, it is heavy to be washed with deionized
It forms sediment 2~3 times, is placed in the baking oven that temperature is 60~70 DEG C and dries to constant weight, be cooled to room temperature to get modified filler；By weight
Measure number meter, weigh respectively 30~40 parts of matrix resins, 5~15 parts of modified fillers, 1~3 part of dispersing agent stearic acid, 1~5 part it is steady
Determine agent Lanthanum Stearate, 0.4~0.7 part of vulcanizing agent sulphur, 0.5~0.7 part of antioxidant 4020, by matrix resin, modified filler, divides
Powder stearic acid, stabilizer Lanthanum Stearate, vulcanizing agent sulphur, antioxidant 4020 mixing, low whipping speed are 60~80r/min,
Temperature is that 15~20min is kneaded at 60~70 DEG C to get rubber compound；Rubber compound is placed in double screw extruder and is in temperature
160~170 DEG C, engine speed is 60~80r/min, and feeding revolving speed is 20~30r/min, and cutting and drawing revolving speed is 180~200r/
Presoma is placed in the baking oven that temperature is 80~90 DEG C after dry 3~5h, is placed in get presoma by extruding pelletization under min
On injection molding machine, injection molding at being 160~180 DEG C in temperature is cooled to room temperature to get high-strength anti-flaming architectural electricity penetration pipe
Material.
Embodiment 1
According to parts by weight, 20 parts of polyvinyl chloride, 1 part of neoprene, 1 part of maleic anhydride, 0.3 part of sodium hydride are weighed respectively, it will
Polyvinyl chloride, neoprene and maleic anhydride mixing are placed in torque rheometer, are 100 DEG C in temperature, revolving speed is under 40r/min
1h is reacted to get mixed material, polyvinyl chloride is added in mixed material, is 60r/min in revolving speed, temperature is to stir at 60 DEG C
30min is cooled to room temperature to get matrix resin；In mass ratio 5: 1 by mass fraction be 50% magnesium hydroxide solution and kaolin
Mixing, low whipping speed are to filter suspension to get filter residue to get suspension for sealing stirring 2 days under 300r/min,
Filter residue is placed in the baking oven that temperature is 60 DEG C and is dried to constant weight, is cooled to room temperature to get filler；In mass ratio 1: 5 by metatitanic acid
Ester coupling agent and isopropanol, which are uniformly mixed, mixes filler and modifying agent to get modifying agent, in mass ratio 1: 3, is 75 in temperature
DEG C, mixing speed is that constant temperature stirs 1h to get modification liquid under 500r/min, modification liquid is filtered up to precipitating, uses deionized water
Washing precipitating 2 times is placed in the baking oven that temperature is 60 DEG C and dries to constant weight, is cooled to room temperature to get modified filler；By weight
Number meter weighs 30 parts of matrix resins, 5 parts of modified fillers, 1 part of dispersing agent stearic acid, 1 part of stabilizer Lanthanum Stearate, 0.4 respectively
Part vulcanizing agent sulphur, 0.5 part of antioxidant 4020, by matrix resin, modified filler, dispersing agent stearic acid, stabilizer Lanthanum Stearate,
Vulcanizing agent sulphur, antioxidant 4020 mixing, low whipping speed 60r/min, temperature are that 15min is kneaded at 60 DEG C to get mixing
Glue；It is 160 DEG C, engine speed 60r/min that rubber compound, which is placed in double screw extruder in temperature, and feeding revolving speed is 20r/
Min, cutting and drawing revolving speed is that presoma is placed in the baking oven that temperature is 80 DEG C and does to get presoma by extruding pelletization under 180r/min
It after dry 3h, is placed on injection molding machine, injection molding at being 160 DEG C in temperature is cooled to room temperature and builds electricity to get high-strength anti-flaming
Gas threads tube material.
Embodiment 2
According to parts by weight, 25 parts of polyvinyl chloride, 5 parts of neoprenes, 2 parts of maleic anhydrides, 0.4 sodium hydride are weighed respectively, will be gathered
Vinyl chloride, neoprene and maleic anhydride mixing are placed in torque rheometer, are 103 DEG C in temperature, and revolving speed is anti-under 45r/min
It answers 1.5h to get mixed material, polyvinyl chloride is added in mixed material, be 65r/min in revolving speed, temperature is to stir at 65 DEG C
35in is cooled to room temperature to get matrix resin；In mass ratio 5: 1 mix mass fraction for 50% magnesium hydroxide solution and kaolin
It closes, low whipping speed is to filter suspension to get filter residue to get suspension for sealing stirring 2 days under 350r/min, will
Filter residue is placed in the baking oven that temperature is 65 DEG C and dries to constant weight, is cooled to room temperature to get filler；In mass ratio 1: 5 by titanate esters
Coupling agent and isopropanol, which are uniformly mixed, mixes filler and modifying agent to get modifying agent, in mass ratio 1: 3, is 80 DEG C in temperature,
Mixing speed is that constant temperature stirs 1.5h to get modification liquid under 550r/min, modification liquid is filtered up to precipitating, is washed with deionized water
It washs precipitating 2 times, is placed in the baking oven that temperature is 65 DEG C and dries to constant weight, be cooled to room temperature to get modified filler；By weight
Number meter, weighs 35 parts of matrix resins, 10 parts of modified fillers, 2 parts of dispersing agent stearic acid, 3 parts of stabilizer Lanthanum Stearates, 0.6 respectively
Part vulcanizing agent sulphur, 0.6 part of antioxidant 4020, by matrix resin, modified filler, dispersing agent stearic acid, stabilizer Lanthanum Stearate,
Vulcanizing agent sulphur, antioxidant 4020 mixing, low whipping speed 70r/min, temperature are that 17min is kneaded at 65 DEG C to get mixing
Glue；It is 165 DEG C, engine speed 70r/min that rubber compound, which is placed in double screw extruder in temperature, and feeding revolving speed is 25r/
Min, cutting and drawing revolving speed is that presoma is placed in the baking oven that temperature is 85 DEG C and does to get presoma by extruding pelletization under 190r/min
It after dry 4h, is placed on injection molding machine, injection molding at being 170 DEG C in temperature is cooled to room temperature and builds electricity to get high-strength anti-flaming
Gas threads tube material.
Embodiment 3
According to parts by weight, 30 parts of polyvinyl chloride, 10 parts of neoprenes, 3 parts of maleic anhydrides, 0.5 part of sodium hydride are weighed respectively, it will
Polyvinyl chloride, neoprene and maleic anhydride mixing are placed in torque rheometer, are 105 DEG C in temperature, revolving speed is under 50r/min
2h is reacted to get mixed material, polyvinyl chloride is added in mixed material, is 70r/min in revolving speed, temperature is to stir at 70 DEG C
40min is cooled to room temperature to get matrix resin；In mass ratio 5: 1 by mass fraction be 50% magnesium hydroxide solution and kaolin
Mixing, low whipping speed are to filter suspension to get filter residue to get suspension for sealing stirring 3 days under 400r/min,
Filter residue is placed in the baking oven that temperature is 70 DEG C and is dried to constant weight, is cooled to room temperature to get filler；In mass ratio 1: 5 by metatitanic acid
Ester coupling agent and isopropanol, which are uniformly mixed, mixes filler and modifying agent to get modifying agent, in mass ratio 1: 3, is 85 in temperature
DEG C, mixing speed is that constant temperature stirs 2h to get modification liquid under 600r/min, modification liquid is filtered up to precipitating, uses deionized water
Washing precipitating 3 times is placed in the baking oven that temperature is 70 DEG C and dries to constant weight, is cooled to room temperature to get modified filler；By weight
Number meter, weigh respectively 40 parts of matrix resins, 15 parts of modified fillers, 3 parts of dispersing agent stearic acid, 5 parts of stabilizer Lanthanum Stearates,
0.7 part of vulcanizing agent sulphur, 0.7 part of antioxidant 4020, by matrix resin, modified filler, dispersing agent stearic acid, stabilizer stearic acid
Lanthanum, vulcanizing agent sulphur, antioxidant 4020 mixing, low whipping speed 80r/min, temperature are that 20min is kneaded at 70 DEG C to get mixed
Refining glue；It is 170 DEG C, engine speed 80r/min that rubber compound, which is placed in double screw extruder in temperature, and feeding revolving speed is 30r/
Min, cutting and drawing revolving speed is that presoma is placed in baking oven at a temperature of 90 °C and does to get presoma by extruding pelletization under 200r/min
It after dry 5h, is placed on injection molding machine, injection molding at being 180 DEG C in temperature is cooled to room temperature and builds electricity to get high-strength anti-flaming
Gas threads tube material.
High-strength anti-flaming architectural electricity prepared by the present invention is threaded into tube material and commercially available penetration pipe detects, specifically
Testing result such as following table table 1:
Test method:
The flame retardant property and mechanical property for detecting Examples 1 to 3 and the resulting threading tube material of comparative example, are prepared into rule
The tubing with a thickness of 3mm of lattice, the result is shown in tables 1.Wherein, fire-retardant rank test tests reference referring to UL94 standard, smoke density
GB/T8323.2-2008, the test of mechanical property according to JG3050-1998 regulation.
1 high-strength anti-flaming architectural electricity penetration pipe material property of table characterization
High-strength anti-flaming architectural electricity prepared by the present invention threads tube material as shown in Table 1, and flame retardant property is good, and mechanical property is excellent
It is different, have a vast market value and application prospect.
Claims (10)
1. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material, it is characterised in that specific preparation step are as follows:
(1) polyvinyl chloride, neoprene, maleic anhydride, sodium hydride are taken, polyvinyl chloride, neoprene and maleic anhydride are mixed
It is placed in torque rheometer, is stirred to react processing to get mixed material, be added polyvinyl chloride in mixed material, stir process,
It is cooled to room temperature to get matrix resin；
(2) it is that 50% magnesium hydroxide solution and kaolin mix by mass fraction, seals stir process to get suspension, will suspend
Liquid is filtered to get filter residue, and filter residue is placed in the baking oven that temperature is 60~70 DEG C and is dried to constant weight, is cooled to room temperature, i.e.,
Obtain filler；
(3) in mass ratio 1: 5 titanate coupling agent and isopropanol are uniformly mixed to get modifying agent, filler and modifying agent is mixed
It closes, modification liquid is filtered up to precipitating to get modification liquid, be washed with deionized precipitating 2~3 times, juxtaposition by constant temperature stir process
It dries in the baking oven that temperature is 60~70 DEG C to constant weight, is cooled to room temperature to get modified filler；
(4) matrix resin, modified filler, dispersing agent stearic acid, stabilizer Lanthanum Stearate, vulcanizing agent sulphur, antioxidant 4020 are taken,
Matrix resin, modified filler, dispersing agent stearic acid, stabilizer Lanthanum Stearate, vulcanizing agent sulphur, antioxidant 4020 are mixed, mixed
Refining processing is to get rubber compound；
(5) rubber compound is placed in double screw extruder extruding pelletization to get presoma, it is 80~90 that presoma, which is placed in temperature,
DEG C baking oven in after dry 3~5h, and injection molding is handled, and is cooled to room temperature to get high-strength anti-flaming architectural electricity penetration pipe
Material.
2. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
Ratio between: polyvinyl chloride described in step (1), neoprene, maleic anhydride, sodium hydride is respectively as follows: in parts by weight
Meter, weighs 20~30 parts of polyvinyl chloride, 1~10 part of neoprene, 1~3 part of maleic anhydride, 0.3~0.5 part of sodium hydride respectively.
3. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
In: step is stirred to react processing step described in (1) are as follows: mixes polyvinyl chloride, neoprene and maleic anhydride and is placed in torque
It is 100~105 DEG C in temperature, revolving speed is that 1~2h is reacted under 40~50r/min in rheometer.
4. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
In: stir process step described in step (1) are as follows: polyvinyl chloride is added in mixed material, is 60~70r/min in revolving speed,
Temperature is that 30~40min is stirred at 60~70 DEG C.
5. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
In sealing stir process step described in step (2) are as follows: mass fraction is 50% magnesium hydroxide solution and height by mass ratio 5: 1
The mixing of ridge soil, low whipping speed are sealing stirring 2~3 days under 300~400r/min.
6. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
In constant temperature stir process step described in step (3) are as follows: in mass ratio 1: 3 mixes filler and modifying agent, temperature be 75~
85 DEG C, mixing speed is that constant temperature stirs 1~2h under 500~600r/min.
7. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
In: matrix resin described in step (4), dispersing agent stearic acid, stabilizer Lanthanum Stearate, vulcanizing agent sulphur, is prevented always modified filler
Ratio between agent 4020 is respectively as follows: according to parts by weight, weigh respectively 30~40 parts of matrix resins, 5~15 parts of modified fillers,
1~3 part of dispersing agent stearic acid, 1~5 part of stabilizer Lanthanum Stearate, 0.4~0.7 part of vulcanizing agent sulphur, 0.5~0.7 part of anti-aging agent
4020。
8. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
In: mixing process step described in step (4) are as follows: by matrix resin, modified filler, dispersing agent stearic acid, stabilizer stearic acid
Lanthanum, vulcanizing agent sulphur, antioxidant 4020 mixing, low whipping speed be 60~80r/min, temperature be 60~70 DEG C at be kneaded 15~
20min。
9. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
In: extruding pelletization step described in step (5) are as follows: it is 160~170 DEG C that rubber compound, which is placed in double screw extruder in temperature,
Engine speed is 60~80r/min, and feeding revolving speed is 20~30r/min, and cutting and drawing revolving speed is to squeeze out to make under 180~200r/min
Grain.
10. a kind of preparation method of high-strength anti-flaming architectural electricity threading tube material according to claim 1, feature exist
In injection molding processing step described in step (5) are as follows: be placed on injection molding machine be 160~180 DEG C in temperature at injection molding.
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