CN104530578B - A kind of nano kaoline fire-resistant mine cable sheath material and preparation method - Google Patents
A kind of nano kaoline fire-resistant mine cable sheath material and preparation method 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/286—Chlorinated polyethylene
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
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Abstract
A kind of preparation method of nano kaoline fire-resistant mine cable sheath material, comprises the following steps：A. the step of dispensing；B. the step of feeding；C. the step of kneading；D. the step of dumping；E. the step of suppressing bottom sheet.It is in the step a, the step of dispensing：Chlorinated polyethylene rubber is prepared, aniseed is prepared, small powder is prepared, plasticizer, pigment preparation, formulating vulcanization agent is prepared.In the step b, the order of charging is：Rubber, small powder, aniseed, plasticizer are put into successively.Pigment is added after mixing is blocking, mixing starts 10~14 minutes, and temperature reaches 100~105 DEG C of after vulcanization agent DCP.It is in the step c, the step of mixing：After charging, pressure floating weight starts mixing, and sizing material to be mixed mediates the blocking floating weight addition pigment that lifts afterwards and continues to knead.The mine cable sheath sizing material that the present invention is developed meets MT818 2009《Coal mine cable》Requirement to its mechanical performance, and its excellent fireproof performance is required, formula test piece oxygen index (OI) reaches more than 38, and finished product can pass through flammability test.
Description
Technical field
The present invention relates to mine cable sheath material technical field, the mining electricity of more particularly to a kind of nano kaoline fire-resistant
Cable sheath material and preparation method.
Background technology
In recent years, the development of nano material enriches the modification technology of high polymer material and the Research Thinking of flame-retarded technology.
Nano material has obvious skin effect, small-size effect, quantum size effect and macro quanta tunnel effect, therefore shows
Many excellent physics and chemical characteristic.Nano kaoline as a kind of raw material sources are abundant, function is strong, environmentally friendly, efficient, it is low into
This nano material has caused numerous concerns in flame retardant area.
Using rubber-type chlorinated polyethylene (CM) as matrix material more than current mine cable sheath, its fire retardant is mostly adopted
With halogen-containing chlorinated paraffin, decabromodiphenyl oxide etc., halogen containing flame-retardant can discharge harmful sour gas in fire incident,
Secondary injury is caused to people and production equipment.And inorganic combustion inhibitor (aluminium hydroxide, magnesium hydroxide etc.) needs a large amount of addition ability
The flame retardant effect required by mine cable is reached, but inorganic combustion inhibitor can reduce its Physical Mechanical.Nano kaoline has
The flame retardant effect of inorganic combustion inhibitor has very big specific surface area and special lamellar structure because of it again, and a large amount of additions will not be reduced
The physical and mechanical properties of rubber.Ground from now on so nano kaoline uses necessarily to turn into as the fire proofing of mine cable sheath
The emphasis studied carefully.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of nano kaoline fire-resistant mine cable sheath material
Material, mine cable sheath sizing material of the present invention meets MT818-2009《Coal mine cable》Requirement to its mechanical performance, and require
Its excellent fireproof performance, formula test piece oxygen index (OI) reaches more than 38, and finished product can pass through flammability test.
In order to solve the above technical problems, the invention provides a kind of system of nano kaoline fire-resistant mine cable sheath material
Preparation Method, comprises the following steps：
A. the step of dispensing；
B. the step of feeding；
C. the step of kneading；
D. the step of dumping；
E. the step of suppressing bottom sheet.
Can be in the step a, the step of dispensing：Prepare rubber (chlorinated polyethylene rubber 32kg) preparation aniseed (sliding
Stone flour 1.6kg；Nano kaoline 25.6kg；White carbon 1.6kg), prepare small powder (magnesia 3.2kg；Calcium zinc stabilizer
0.96kg；Paraffin 0.48kg；Antimony oxide 3.2kg；Titanium dioxide 0.64kg；Anti-aging agent RD 0.96kg；Assistant crosslinking agent TAIC
1.12kg), plasticizer (o-phthalic acid dibutyl ester 4kg is prepared；52# chlorinated paraffin 4kg), pigment preparation (required coloured pigment
0.096kg) formulating vulcanization agent (DCP 0.64kg).80.096kg altogether.
In the step b, the order of charging can be：Rubber, small powder, aniseed, plasticizer are put into successively.After mixing is blocking
Pigment is added, mixing starts 10~14 minutes, and temperature reaches 100~105 DEG C of after vulcanization agent DCP.
Can be in the step c, the step of mixing：After charging, pressure floating weight starts mixing, and sizing material to be mixed is mediated
Lift floating weight after blocking and add pigment continuation mixing；Glue stuff compounding is carried out in 75L masticators, is kneaded using inverse mixed method.
Can be in the step d, the step of dumping：Add after vulcanizing agent DCP, then knead beginning after 30~120 seconds
Dumping, dump temperature is at 106~110 DEG C.
In the step e, the step of suppressing bottom sheet can be：The elastomeric compound discharged through masticator enters opening rubber mixing machine
Carry out mixing compacting, it is coiled, be then placed in calender and cut bottom sheet through cutter.
The CM is that chlorination rate can be：In 30%~40% rubber-type chlorinated polyethylene.
The aniseed can include：Talcum powder, nano kaoline, white carbon.
The small powder can include：Magnesia, calcium zinc stabilizer, paraffin, antimony oxide, titanium dioxide, anti-aging agent RD (2,
2,4- trimethyl -1,2- dihyaroquinoline condensates), assistant crosslinking agent TAIC (Triallyl isocyanurate).
The plasticizer can include：O-phthalic acid dibutyl ester (DOP), 52# chlorinated paraffins.
In the preparation method, the number of each raw material can include：100 parts of CM；10 parts of magnesia；Calcium zinc stabilizer 3
Part；80 parts of nano kaoline；5 parts of talcum powder；5 parts of white carbon；10 parts of antimony oxide；25 parts of plasticizer；Vulcanizing agent DCP 3
Part；TAIC3.5 parts of assistant crosslinking agent；2 parts of anti-aging agent RD；1.5 parts of paraffin；2 parts of titanium dioxide；0.3 part of pigment.250.3 parts altogether.
In the preparation method, the weight number of each raw material can also include：Chlorinated polyethylene rubber 32kg；Talcum powder
1.6kg；Nano kaoline 25.6kg；White carbon 1.6kg；Magnesia 3.2kg；Calcium zinc stabilizer 0.96kg；Paraffin 0.48kg；Three
Aoxidize two antimony 3.2kg；Titanium dioxide 0.64kg；Anti-aging agent RD 0.96kg；Assistant crosslinking agent TAIC 1.12kg；Phthalic acid two is pungent
Fat 4kg；52# chlorinated paraffins 4kg；Vulcanizing agent DCP 0.64kg；Pigment 0.096kg.80.096kg altogether.
In order to solve the above technical problems, present invention also offers prepared by a kind of any one as described above preparation method receiving
Rice kaoline fire-resistant mine cable sheath material.
The present invention is beneficial to be had technical effect that：
1. the ore deposit cable sheath material for the nano kaoline fire-resistant that the present invention is developed disclosure satisfy that MT818-2009《Colliery electricity consumption
Cable》Requirement to its performance, excellent fireproof performance, oxygen index (OI) can reach more than 38.
2. the ore deposit cable sheath of nano kaoline fire-resistant that the present invention is developed, manufacturability disclosure satisfy that production requirement, Ke Yizuo
Used for coal mine cable sheath.
Embodiment
Describe embodiments of the present invention in detail below with reference to embodiment, whereby to the present invention how application technology hand
Section solves technical problem, and reaches the implementation process of technique effect and can fully understand and implement according to this.
(1) fire retardant mechanism of nano kaoline
Nano kaoline is aqueous silicate mineral, and crystal water content occurs more than 13.5% during heating
Following change：
During material combustion, surface forms a kind of high performance charing-silicate sturcture, and the release crystallization water absorbs heat
Amount reduction combustion intensity, while playing heat-insulated and centrifugation to non-combustible material, slow down the volatilizable product that decomposition is produced
Diffusion, reduces the mass loss rate of material, plays fire retardation.
(2) mine cable jacket formula of the present invention
1. in terms of matrix material：
Haloflex is the high polymer material as made from high density polyethylene (HDPE) (HDPE) through chlorination substitution reaction.According to knot
Structure is different with purposes, and haloflex can be divided into resin type haloflex (CM) and elastomeric-type haloflex (CM) two is big
Class.Thermoplastic resin, can also be with polyvinyl chloride (PVC), polyethylene (PE), polypropylene in addition to it can be used alone
(PP), the resin such as polystyrene (PS), ABS even polyurethane (PU) is blended to use.In rubber industry, CM can be used as high property
Energy, high-quality specific rubber, can also be with EP rubbers (EPR), butyl rubber (IIR), nitrile rubber (NBR), chlorosulfonation
Other blend rubbers such as polyethylene (CSM) are used.
Rubber-type chlorinated polyethylene (CM) has excellent pliability, resistance to heat aging, weatherability and ozone resistance, simultaneously
With good oil resistant, the processing and physical machine of chemical-resistant resistance and anti-flammability chlorination degree and remaining crystallization to haloflex
Tool performance impact is very big.Chlorination rate CM at 30%~40% glass transition temperature is low, and strand compliance is good, and CM is rubber
Glue-type.The few product of residual crystallization, the addition of chlorine and is distributed than more uniform, and its product is soft goods.Therefore existed from chlorination rate
The minimum haloflex of 35% residual crystallinity is used as material of main part.
2. selected in terms of vulcanizing system：
The vulcanizing agent DCP that the embodiment of the present invention is used is cumyl peroxide, English name：Dicumyl Peroxide
Molecular weight：270.36 molecular formula：C6H5 (CH3) 2COOC (CH3) 2C6H5 purposes：DCP is mainly as various olefin polymers
And copolymer such as polyethylene (PE), vinyl-vinyl acetate copolymer (EVA), haloflex (CM), Ethylene-Propylene-Diene
Terpolymer (EPDM), ethylene-propylene binary rubber (EPR), silicon rubber, the crosslinking agent and polystyrene of polyurethane rubber
(PS) polymerization initiator.It is also the curing agent of unsaturated polyester resin.After DCP crosslinkings, the physical property of polymer is made
Improve, its heat resistance, chemical resistance, resistance to pressure, crack resistance and mechanical strength can increase after such as polyethylene crosslinking.DCP is extensive
Suitable for other various plastics such as building and ornament materials, electric wire, foamed plastic, rubber.
There is no double bond in haloflex macromolecular structure, and the chlorine atom being bonded with secondary carbon does not have height
Reactivity, so can not be vulcanized with traditional sulphur/accelerator vulcanizing system.The vulcanization body of chlorinated polyethylene rubber
System is based on selection organic peroxide, while being equipped with esters of acrylic acid makees crosslinking coagent.Assistant crosslinking agent is added simultaneously to improve
Crosslink density and the heat resistance for improving vulcanizate.
3. in terms of protection system：CM is saturated structures high polymer, and itself has heat-resisting oxygen well and ozone resistance.Addition
A certain amount of calcium zinc stabilizer, lightweight oxide, anti-aging agent RD (2,2,4- trimethyl -1,2- dihyaroquinoline condensate) can be with
Ensure the stablizing effect of electric wire CM sizing materials.
4. the selection of Plasticising system：Because CM green tacks are big, extrusion flowability difference is, it is necessary to add a large amount of plasticizer to change
It is apt to its mobility, but CM anti-flammability can be influenceed again by adding a large amount of plasticizer, therefore experiment is from the higher DOP of plasticizing efficiency
(dioctyl phthalate) is used as primary plasticizer.
5. in terms of reinforcing and filling system：Nano kaoline has obvious skin effect, its very big specific surface area and height
Specific surface energy is conducive to the strong bonded between nano kaoline particle and organic polymer molecule, with excellent reinforcing
Energy.Nano kaoline can be separately as reinforcement and filler materials'use.
6. the processing characteristics of sizing material can be improved to a certain extent by a certain amount of paraffin being added in terms of other balanced constants, be carried
The mobility of high elastomeric compound, reduces extrusion pressure.In addition to the fire resistance of vulcanizate is further improved, selection addition and CM
The antimony oxide for having synergy is synergistic fire retardant.
Optimal sizing compound formula is after optimization：100 parts of CM；10 parts of magnesia；3 parts of calcium zinc stabilizer；Nano kaoline 80
Part；5 parts of talcum powder；5 parts of white carbon；10 parts of antimony oxide；25 parts of plasticizer；3 parts of vulcanizing agent DCP；Assistant crosslinking agent
TAIC3.5 parts；2 parts of anti-aging agent RD；1.5 parts of paraffin；2 parts of titanium dioxide；0.3 part of pigment.250.3 parts altogether.
(3) preparation method of the invention
There is provided a kind of preparation of nano kaoline fire-resistant mine cable sheath material in one embodiment of the invention
Method, comprises the following steps：
A. the step of dispensing；
B. the step of feeding；
C. the step of kneading；
D. the step of dumping；
E. the step of suppressing bottom sheet.
2nd, the preparation method of nano kaoline fire-resistant mine cable sheath material according to claim 1, its feature exists
In being in the step a, the step of dispensing：
Prepare rubber：The parts by weight of chlorinated polyethylene rubber 30~40；
Prepare aniseed：The parts by weight of talcum powder 1~2, the parts by weight of nano kaoline 20~30, the parts by weight of white carbon 1~2；
Prepare small powder：The parts by weight of magnesia 2.5~4, the parts by weight of calcium zinc stabilizer 0.5~1, the weight of paraffin 0.3~0.8
Part, the parts by weight of antimony oxide 2~4, the parts by weight of titanium dioxide 0.5~1；The parts by weight of anti-aging agent RD 0.5~1, assistant crosslinking agent TAIC1
~2 parts by weight；
Prepare plasticizer：The parts by weight of o-phthalic acid dibutyl ester 3~5, the parts by weight of 52# chlorinated paraffins 3~5；
Pigment preparation：The parts by weight of coloured pigment 0.5~1；
Formulating vulcanization agent：The parts by weight of DCP 0.5~1.
Can be in the step b, the step of charging：Rubber, small powder, aniseed, plasticizer are put into successively, after mixing is blocking
Pigment is added, mixing starts 10~14 minutes, and temperature reaches 100~105 DEG C of after vulcanization agent DCP.
Can be in the step c, the step of mixing：After charging, pressure floating weight starts mixing, and sizing material to be mixed is mediated
Lift floating weight after blocking and add pigment continuation mixing；Glue stuff compounding is carried out in 75L masticators, is kneaded using inverse mixed method.
Can be in the step d, the step of dumping：Add after vulcanizing agent DCP, then knead beginning after 30~120 seconds
Dumping, dump temperature is at 106~110 DEG C.
In the step e, the step of suppressing bottom sheet can be：The elastomeric compound discharged through masticator enters opening rubber mixing machine
Carry out mixing compacting, it is coiled, be then placed in calender and cut bottom sheet through cutter.
The chlorinated polyethylene rubber can be rubber-type chlorinated polyethylene of the chlorination rate 30%~40%.
The aniseed can include：Talcum powder, nano kaoline, white carbon.
The small powder can include：Magnesia, calcium zinc stabilizer, paraffin, antimony oxide, titanium dioxide, anti-aging agent RD (2,
2,4- trimethyl -1,2- dihyaroquinoline condensates), assistant crosslinking agent TAIC (Triallyl isocyanurate).
The plasticizer can include：O-phthalic acid dibutyl ester (DOP), 52# chlorinated paraffins.
The parts by weight of each raw material can also be：100 parts of CM；10 parts of magnesia；3 parts of calcium zinc stabilizer；Nanometer kaolinite
80 parts of soil；5 parts of talcum powder；5 parts of white carbon；10 parts of antimony oxide；25 parts of plasticizer；3 parts of vulcanizing agent DCP；Assistant crosslinking agent
TAIC3.5 parts；2 parts of anti-aging agent RD；1.5 parts of paraffin；2 parts of titanium dioxide；0.3 part of pigment.
The weight number of each raw material can also be：Chlorinated polyethylene rubber 32kg；Talcum powder 1.6kg；Nano kaoline
25.6kg；White carbon 1.6kg；Magnesia 3.2kg；Calcium zinc stabilizer 0.96kg；Paraffin 0.48kg；Antimony oxide 3.2kg；Titanium
White powder 0.64kg；Anti-aging agent RD 0.96kg；Assistant crosslinking agent TAIC1.12kg；O-phthalic acid dibutyl ester 4kg；52# chlorinated paraffins
4kg；Vulcanizing agent DCP 0.64kg；Pigment 0.096kg.80.096kg altogether.
There is provided nano kaoline prepared by a kind of preparation method as described in foregoing any one in yet another embodiment of the invention
Fire retardant mine cable sheath material.
It is in another embodiment of the present invention：Carry out preparing various compounding ingredients according to formulation weight, the powder prepared exists
Carry out, kneaded using inverse mixed method in 75L masticators.Charging sequence is：CM, small powder, aniseed, softening agent, sizing material to be mixed are mediated
Lift floating weight after blocking and add pigment continuation mixing.Mixing 10~14 minutes, temperature reaches 100~105 DEG C of after vulcanizations
Agent DCP, is added after vulcanizing agent DCP, then is kneaded and started dumping after 30~120 seconds, and dump temperature is at 106~110 DEG C.
There is provided a kind of preparation of nano kaoline fire-resistant mine cable sheath material in another embodiment of the invention
Method, comprises the following steps：
A. the step of dispensing；
B. the step of feeding；
C. the step of kneading；
D. the step of dumping.
E. the step of suppressing bottom sheet
It is in the step a, the step of dispensing：Rubber (chlorinated polyethylene rubber 32kg) is prepared, aniseed (talcum powder is prepared
1.6kg；Nano kaoline 25.6kg；White carbon 1.6kg), prepare small powder (magnesia 3.2kg；Calcium zinc stabilizer 0.96kg；Stone
Wax 0.48kg；Antimony oxide 3.2kg；Titanium dioxide 0.64kg；Anti-aging agent RD 0.96kg；Assistant crosslinking agent TAIC 1.12kg), match somebody with somebody
Plasticizer (o-phthalic acid dibutyl ester 4kg processed；52# chlorinated paraffin 4kg), pigment preparation (required coloured pigment 0.096kg) is matched somebody with somebody
Vulcanizing agent (DCP 0.64kg) processed.80.096kg altogether.
In the step b, the order of charging is：Rubber, small powder, aniseed, plasticizer are put into successively.Added after mixing is blocking
Pigment, mixing starts 10~14 minutes, and temperature reaches 100~105 DEG C of after vulcanization agent DCP.
It is in the step c, the step of mixing：After charging, pressure floating weight starts mixing, and sizing material to be mixed is mediated blocking
Lift floating weight afterwards and add pigment continuation mixing；Glue stuff compounding is carried out in 75L masticators, is kneaded using inverse mixed method.
It is in the step d, the step of dumping：Add after vulcanizing agent DCP, then start dumping after kneading 30~120 seconds,
Dump temperature is at 106~110 DEG C.
In the step e, the step of suppressing bottom sheet is：The elastomeric compound discharged through masticator is carried out into opening rubber mixing machine
Mixing is suppressed, in rolls, is then placed in calender and is cut bottom sheet through cutter.
The CM is that chlorination rate can be：In 30%~40% rubber-type chlorinated polyethylene.
The aniseed includes：Talcum powder, nano kaoline, white carbon.
The small powder includes：Magnesia, calcium zinc stabilizer, paraffin, antimony oxide, titanium dioxide, anti-aging agent RD (2,2,4-
Trimethyl -1,2- dihyaroquinoline condensate), assistant crosslinking agent TAIC (Triallyl isocyanurate).
The plasticizer includes：O-phthalic acid dibutyl ester (DOP), 52# chlorinated paraffins.
In the preparation method, the number of each raw material includes：100 parts of CM；10 parts of magnesia；3 parts of calcium zinc stabilizer；
80 parts of nano kaoline；5 parts of talcum powder；5 parts of white carbon；10 parts of antimony oxide；25 parts of plasticizer；3 parts of vulcanizing agent DCP；Help
TAIC3.5 parts of crosslinking agent；2 parts of anti-aging agent RD；1.5 parts of paraffin；2 parts of titanium dioxide；0.3 part of pigment.250.3 parts altogether.
In the preparation method, the weight number of each raw material also includes：Chlorinated polyethylene rubber 32kg；Talcum powder 1.6kg；
Nano kaoline 25.6kg；White carbon 1.6kg；Magnesia 3.2kg；Calcium zinc stabilizer 0.96kg；Paraffin 0.48kg；Three oxidations two
Antimony 3.2kg；Titanium dioxide 0.64kg；Anti-aging agent RD 0.96kg；Assistant crosslinking agent TAIC 1.12kg；O-phthalic acid dibutyl ester 4kg；
52# chlorinated paraffins 4kg；Vulcanizing agent DCP 0.64kg；Pigment 0.096kg.80.096kg altogether.
Test piece test performance such as table 1 below：
The properties of rubber test result of the test recipe of table 1
In one more embodiment of the present invention, nanometer prepared by a kind of any one as described above preparation method is additionally provided
Kaoline fire-resistant mine cable sheath material.
1st, carry out preparing various compounding ingredients according to formulation weight, prepare rubber (chlorinated polyethylene rubber 32kg), prepare big
Expect (talcum powder 1.6kg；Nano kaoline 25.6kg；White carbon 1.6kg), prepare small powder (magnesia 3.2kg；Calcium zinc stabilizer
0.96kg；Paraffin 0.48kg；Antimony oxide 3.2kg；Titanium dioxide 0.64kg；Anti-aging agent RD 0.96；Assistant crosslinking agent TAIC
1.12kg), plasticizer (o-phthalic acid dibutyl ester 4kg is prepared；52# chlorinated paraffin 4kg), pigment preparation (yellow uitramarine
0.096kg) formulating vulcanization agent (DCP 0.64kg).80.096kg altogether.2nd, the powder prepared is put into according to feeding sequence
Kneaded in 75L masticators, knead blocking rear addition yellow uitramarine, after mixing starts 12 minutes, masticator temperature reaches 105
DEG C, lift floating weight plus vulcanizing agent DCP.Add after vulcanizing agent DCP, then knead 60 seconds back glues, dump temperature is at 110 DEG C.
The bottom sheet after mill compacting, microtome, it is stand-by after depositing 8 hours.3rd, the test piece kneaded is used as mine cable sheath
Use, the mine cable of extrusion is MYP-0.66/1.14Kv 3*95+1*25mm2 coal mine moving shielded flexible cables, and sheath is
Yellow, carries out detecting that the performance test results see the table below 2 to the mine cable of production.
The finished cable the performance test results of table 2
All above-mentioned this intellectual properties of primarily implementation, the not this new product of implementation of setting limitation other forms
And/or new method.Those skilled in the art will utilize this important information, the above modification, to realize similar execution feelings
Condition.But, all modifications or transformation belong to the right of reservation based on new product of the present invention.
Claims (2)
1. a kind of preparation method of nano kaoline fire-resistant mine cable sheath material, it is characterised in that comprise the following steps：
A. the step of dispensing；
B. the step of feeding；
C. the step of kneading；
D. the step of dumping；
E. the step of suppressing bottom sheet；It is in the step a, the step of dispensing：
Prepare rubber：Chlorinated polyethylene rubber；
Prepare aniseed：Talcum powder, nano kaoline, white carbon；
Prepare small powder：Magnesia, calcium zinc stabilizer, paraffin, antimony oxide, titanium dioxide；Anti-aging agent RD, assistant crosslinking agent TAIC；
Prepare plasticizer：O-phthalic acid dibutyl ester, 52# chlorinated paraffins；
Pigment preparation：Coloured pigment；
Formulating vulcanization agent：DCP；It is in the step b, the step of charging：Input rubber, small powder, aniseed, plasticizer, are mixed successively
It is smelt after block and adds pigment, mixing starts 10~14 minutes, and temperature reaches 100~105 DEG C of after vulcanization agent DCP；
It is in the step c, the step of mixing：After charging, pressure floating weight starts mixing, after sizing material kneading to be mixed is blocking
Lift floating weight and add pigment continuation mixing；Glue stuff compounding is carried out in 75L masticators, is kneaded using inverse mixed method；The step d
In, it is the step of dumping：Add after vulcanizing agent DCP, then knead and start dumping after 30~120 seconds, dump temperature 106~
110℃；In the step e, the step of suppressing bottom sheet is：The elastomeric compound discharged through masticator is mixed into opening rubber mixing machine
Refining is suppressed, in rolls, is then placed in calender and is cut bottom sheet through cutter；
The chlorinated polyethylene rubber is rubber-type chlorinated polyethylene of the chlorination rate 30%~40%；
Characterized in that, the aniseed includes：Talcum powder, nano kaoline, white carbon；
The small powder includes：Magnesia, calcium zinc stabilizer, paraffin, antimony oxide, titanium dioxide, anti-aging agent RD (2,2,4- front threes
Base -1,2- dihyaroquinolines condensate), assistant crosslinking agent TAIC (Triallyl isocyanurate)；
In the preparation method, the weight number of each raw material also includes：Chlorinated polyethylene rubber 32kg；Talcum powder 1.6kg；Nanometer
Kaolin 25.6kg；White carbon 1.6kg；Magnesia 3.2kg；Calcium zinc stabilizer 0.96kg；Paraffin 0.48kg；Antimony oxide
3.2kg；Titanium dioxide 0.64kg；Anti-aging agent RD 0.96；Assistant crosslinking agent TAIC 1.12kg；O-phthalic acid dibutyl ester 4kg；52#
Chlorinated paraffin 4kg；Vulcanizing agent DCP 0.64kg；Pigment 0.096kg；80.096kg altogether.
2. nano kaoline fire-resistant mine cable sheath material prepared by a kind of preparation method as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106916386A (en) * | 2017-04-26 | 2017-07-04 | 天津金山电线电缆股份有限公司 | A kind of water proof rubber flexible cable sheath material and preparation method thereof |
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