CN105623269A - Preparation method of vitrifiable fireproof ablation-preventive cable material - Google Patents
Preparation method of vitrifiable fireproof ablation-preventive cable material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2312/00—Crosslinking
Abstract
The invention discloses a preparation method of a vitrifiable fireproof ablation-preventive cable material and belongs to the field of cable materials. The preparation method includes: modifying mixed clay of diatomite and bauxite to obtain modified clay; vulcanizing silicon rubber, and enabling vulcanized silicon rubber and the modified clay to be in cross-linking reaction to obtain the vitrifiable fireproof ablation-preventive cable material. The surface of the clay is modified to enable the clay to be lipophilic from being hydrophilic, and active functional groups are provided for the cross-linking reaction of rubber, so that compatibility between clay filler and the rubber is improved, the clay filler and the silicon rubber can be well combined, reinforcing effect of the rubber can be realized, good flame retardancy can be realized, and a material high in cauterization stability; low-melting-point water glass is used as an additive of the material, so that thermostability of the material can be improved while vitrifying temperature of a compound is lowered.
Description
Technical field
The invention discloses a kind of can the preparation method of porcelain chemoprevention fire burn-out proof cable material, belong to cable material field.
Background technology
Flame-proof wire/the cable adopted both at home and abroad at present is mainly the fire-resisting cable of magnesium oxide mineral insulated fireproof cable and Mica tape. The oversheath of magnesium oxide insulated fireproof cable is made up of seamless copper pipe, and quality is 2 times of common cable, and production cost is high, and cost exceeds about 30% than the fire-resisting cable of Mica tape. It addition, magnesium oxide very easily with the water generation chemical reaction in air, generate conduction magnesium hydroxide, during construction as do not carry out sealed damp-proof process, short circuit can be caused, cause cable normally to use. The fire-resisting cable speed of production of Mica tape is slow, relatively costly, and cable insulation is changed into carburization zone after catching fire, and meets water conduction, does not have real fireproofing function.
Can porcelain macromolecule composite fire-proof material be in siliceous macromolecule matrix, add clay minerals powder filler, constitution controller and other auxiliary agent be prepared from. It is the organic polymer containing elemental silicon in molecular structure containing polymeric silicon, such as silicone rubber. The basic structural unit of organosilicon is with the Si-O key that repeats for main chain, and side chain is connected with other various organic groups by silicon atom. Can porcelain macromolecule fireproof cable material be the excellent fire proofing material of a kind of comparison; its advantage has the character identical with common wiring/cable insulation when being room temperature; meet after high temperature catches fire and be transformed into hard ceramic protective layer through porcelain; the ablation of thousands of degree naked light can be resisted; and there is certain mechanical strength, it is possible to resist water and water and do not break.
Summary of the invention
The technical problem that present invention mainly solves: be mainly the fire-resisting cable of magnesium oxide mineral and Mica tape for the flame-proof wire/cable adopted both at home and abroad at present, magnesium oxide very easily reacts with the water in air, generate conduction magnesium hydroxide, short circuit can be caused, send a telegraph cable cannot normally use, the fire-resisting cable of Mica tape is relatively costly, and cable insulation is changed into carburization zone after catching fire, chance water conducts electricity, the problem not having real fireproofing function, provide a kind of can the preparation method of porcelain chemoprevention fire burn-out proof cable material, the mixed clay of kieselguhr and bauxite is modified by the present invention, clay must be modifiied, again silicone rubber is carried out sulfur, making sulphurated siliastic and modified clay be obtained by cross-linking reaction can porcelain chemoprevention fire burn-out proof cable material, surface of clay is modified by the present invention, it is make clay be become lipophile from hydrophilic, activity palace is provided to roll into a ball for rubber cross reaction, improve the compatibility between clay filler and rubber, make what clay filler and silicone rubber can be good to combine, it is possible not only to play rubber and has the effect of reinforcement, may also operate as good fire retardation, form the material burning good stability, and with the low melting point waterglass additive as material, the heat stability of material can be improved and reduce the porcelain temperature of complex.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
(1) put in agate mortar after weighing 1��2kg kieselguhr and 500��1000g bauxite mix homogeneously, cross 200 mesh standard sieves after grinding 2��3h, obtain mixed-powder, mixed-powder after grinding is moved into baking oven, at 105��110 DEG C, dry 2��3h, obtains mixed clay powder, standby;
(2) weigh 30��50g aminopropyl triethoxysilane and add in 500��600mL mass concentration 90% alcoholic solution, it is placed on magnetic stirrer and stirs 20��30min with 200��300r/min rotating speed, stirring terminate after with concentration be 0.5mol/L second acid for adjusting pH to 4��5, prepare silane-modified liquid;
(3) weigh mixed clay powder 1:2 by volume standby for 200��300g and join in above-mentioned silane-modified liquid, it is placed on vortex oscillation instrument, with the oscillation of power of 30��40W overnight, mixed clay is modified, filter after modified end and remove filtrate, filtering residue is at room temperature dried to obtain naturally modified clay, standby;
(4) weigh 500��600g silicone rubber and be placed in mill, bag roller of plasticating adds 20��30g urethanes and 15��20g hydroxy silicon oil after processing, at 250��300 DEG C, 1��2h is refined with 20��30r/min speed, sizing material is moved into vulcanizing press after terminating by refining again, under 8��10MPa pressure, discharging after vulcanization reaction 15��25min, obtains sulphurated siliastic;
(5) the above-mentioned prepared sulphurated siliastic of 300��400g and the standby modified clay of 100��150g step (3) are weighed, put into ground and mixed in corundum mortar uniform, pour in 5L beaker, the waterglass of mixture cumulative volume 1��2 times is added in beaker, being put into by beaker in ultrasonic disperse instrument, under 200��300W power, ultrasonic mixing 15��20min obtains mixed material again;
(6) above-mentioned mixed material is moved into banbury, it is heated to 180��200 DEG C, become after molten condition until rubber, continuously add 5��10mL di-isopropylbenzene hydroperoxide as cross-linking agent, insulation cross-linking reaction 30��50min, using double screw extruder pelletize after reaction, namely obtaining after putting into oven drying can porcelain chemoprevention fire burn-out proof cable material. Described double screw extruder parameter is a district: 145 DEG C, 2nd district: 155 DEG C, 3rd district: 175 DEG C, 4th district: 180 DEG C, 5th district: 185 DEG C, 6th district: 180 DEG C, 7th district: 170 DEG C, and extruder rotating speed is 30��40r/min, and head temperature is 160��170 DEG C.
That the present invention is prepared can make and be of a size of 5mm �� 5mm �� 20mm sample by porcelain chemoprevention fire burn-out proof cable material, pass through differential thermal analyzer, with 10 DEG C/min heating rate, recording glass transition temperature is 486.5��498.2 DEG C, softening point temperature is 725��786 DEG C, initial degradation temperature is 115��128 DEG C, peak value degradation temperature is 410��421 DEG C, flame temperature be under 450��550 DEG C of alcohol burner flame ablation under sample, burning time is 30.4��35.6s, and lighting sustained combustion is 6.8��8.9s.
The invention has the beneficial effects as follows:
(1) present invention is to clay alteration, improves and the compatibility between rubber, makes what both can be good to combine, and being possible not only to play rubber has the effect of reinforcement, it is also possible to play good fire retardation, forms the material burning good stability;
(2) present invention with the low melting point waterglass additive as material, it is possible to improve the heat stability of material and reduce the porcelain temperature of complex.
Detailed description of the invention
First put in agate mortar after weighing 1��2kg kieselguhr and 500��1000g bauxite mix homogeneously, cross 200 mesh standard sieves after grinding 2��3h, obtain mixed-powder, mixed-powder after grinding is moved into baking oven, at 105��110 DEG C, dry 2��3h, obtains mixed clay powder, standby; Weigh 30��50g aminopropyl triethoxysilane and add in 500��600mL mass concentration 90% alcoholic solution, it is placed on magnetic stirrer and stirs 20��30min with 200��300r/min rotating speed, stirring terminate after with concentration be 0.5mol/L second acid for adjusting pH to 4��5, prepare silane-modified liquid; Weigh mixed clay powder 1:2 by volume standby for 200��300g and join in above-mentioned silane-modified liquid, it is placed on vortex oscillation instrument, with the oscillation of power of 30��40W overnight, mixed clay is modified, filter after modified end and remove filtrate, filtering residue is at room temperature dried to obtain naturally modified clay, standby; Weigh 500��600g silicone rubber and be placed in mill, bag roller of plasticating adds 20��30g urethanes and 15��20g hydroxy silicon oil after processing, at 250��300 DEG C, 1��2h is refined with 20��30r/min speed, sizing material is moved into vulcanizing press after terminating by refining again, under 8��10MPa pressure, discharging after vulcanization reaction 15��25min, obtains sulphurated siliastic; Weigh 300��400g sulphurated siliastic prepared and the standby modified clay of 100��150g, put into ground and mixed in corundum mortar uniform, pour in 5L beaker, the waterglass of mixture cumulative volume 1��2 times is added in beaker, being put into by beaker in ultrasonic disperse instrument, under 200��300W power, ultrasonic mixing 15��20min obtains mixed material again; Mixed material is moved into banbury, it is heated to 180��200 DEG C, become after molten condition until rubber, continuously add 5��10mL di-isopropylbenzene hydroperoxide as cross-linking agent, insulation cross-linking reaction 30��50min, using double screw extruder pelletize after reaction, namely obtaining after putting into oven drying can porcelain chemoprevention fire burn-out proof cable material.
Described double screw extruder parameter is a district: 145 DEG C, 2nd district: 155 DEG C, 3rd district: 175 DEG C, 4th district: 180 DEG C, 5th district: 185 DEG C, 6th district: 180 DEG C, 7th district: 170 DEG C, and extruder rotating speed is 30��40r/min, and head temperature is 160��170 DEG C.
Example 1
First putting in agate mortar after weighing 1kg kieselguhr and 500g bauxite mix homogeneously, cross 200 mesh standard sieves, obtain mixed-powder after grinding 2h, the mixed-powder after grinding is moved into baking oven, at 105 DEG C, dry 2h, obtains mixed clay powder, standby; Weigh 30g aminopropyl triethoxysilane to add in 500mL mass concentration 90% alcoholic solution, be placed on magnetic stirrer and stir 20min with 200r/min rotating speed, stirring terminate after with concentration be 0.5mol/L second acid for adjusting pH to 4, prepare silane-modified liquid; Weigh mixed clay powder 1:2 by volume standby for 200g to join in above-mentioned silane-modified liquid, be placed on vortex oscillation instrument, with the oscillation of power of 30W overnight, mixed clay is modified, filter after modified end and remove filtrate, filtering residue is at room temperature dried to obtain naturally modified clay, standby; Weigh 500g silicone rubber and be placed in mill, bag roller of plasticating adds 20g urethanes and 15g hydroxy silicon oil after processing, at 250 DEG C, 1h is refined with 20r/min speed, sizing material is moved into vulcanizing press after terminating by refining again, under 8MPa pressure, discharging after vulcanization reaction 15min, obtains sulphurated siliastic; Weigh the 300g sulphurated siliastic prepared and the standby modified clay of 100g, put into ground and mixed in corundum mortar uniform, pour in 5L beaker, the waterglass of mixture cumulative volume 1 times is added in beaker, being put into by beaker in ultrasonic disperse instrument, under 200W power, ultrasonic mixing 15min obtains mixed material again; Mixed material is moved into banbury, it is heated to 180 DEG C, become after molten condition until rubber, continuously add 5mL di-isopropylbenzene hydroperoxide as cross-linking agent, insulation cross-linking reaction 30min, using double screw extruder pelletize after reaction, namely obtaining after putting into oven drying can porcelain chemoprevention fire burn-out proof cable material.
Described double screw extruder parameter is a district: 145 DEG C, 2nd district: 155 DEG C, 3rd district: 175 DEG C, 4th district: 180 DEG C, 5th district: 185 DEG C, 6th district: 180 DEG C, 7th district: 170 DEG C, and extruder rotating speed is 30r/min, and head temperature is 160 DEG C.
That the present invention is prepared can make and be of a size of 5mm �� 5mm �� 20mm sample by porcelain chemoprevention fire burn-out proof cable material, pass through differential thermal analyzer, with 10 DEG C/min heating rate, recording glass transition temperature is 486.5 DEG C, and softening point temperature is 725 DEG C, and initial degradation temperature is 115 DEG C, peak value degradation temperature is 410 DEG C, flame temperature be under 450 DEG C of alcohol burner flame ablation under sample, burning time is 30.4s, and lighting sustained combustion is 6.8s.
Example 2
First putting in agate mortar after weighing 1.5kg kieselguhr and 750g bauxite mix homogeneously, cross 200 mesh standard sieves, obtain mixed-powder after grinding 2.5h, the mixed-powder after grinding is moved into baking oven, at 108 DEG C, dry 2.5h, obtains mixed clay powder, standby; Weigh 40g aminopropyl triethoxysilane to add in 550mL mass concentration 90% alcoholic solution, be placed on magnetic stirrer and stir 25min with 250r/min rotating speed, stirring terminate after with concentration be 0.5mol/L second acid for adjusting pH to 4.5, prepare silane-modified liquid; Weigh mixed clay powder 1:2 by volume standby for 250g to join in above-mentioned silane-modified liquid, be placed on vortex oscillation instrument, with the oscillation of power of 35W overnight, mixed clay is modified, filter after modified end and remove filtrate, filtering residue is at room temperature dried to obtain naturally modified clay, standby; Weigh 550g silicone rubber and be placed in mill, bag roller of plasticating adds 25g urethanes and 17g hydroxy silicon oil after processing, at 275 DEG C, 1.5h is refined with 25r/min speed, sizing material is moved into vulcanizing press after terminating by refining again, under 9MPa pressure, discharging after vulcanization reaction 20min, obtains sulphurated siliastic; Weigh the 350g sulphurated siliastic prepared and the standby modified clay of 125g, put into ground and mixed in corundum mortar uniform, pour in 5L beaker, the waterglass of mixture cumulative volume 1.5 times is added in beaker, being put into by beaker in ultrasonic disperse instrument, under 250W power, ultrasonic mixing 17min obtains mixed material again; Mixed material is moved into banbury, it is heated to 190 DEG C, become after molten condition until rubber, continuously add 8mL di-isopropylbenzene hydroperoxide as cross-linking agent, insulation cross-linking reaction 40min, using double screw extruder pelletize after reaction, namely obtaining after putting into oven drying can porcelain chemoprevention fire burn-out proof cable material. Described double screw extruder parameter is a district: 145 DEG C, 2nd district: 155 DEG C, 3rd district: 175 DEG C, 4th district: 180 DEG C, 5th district: 185 DEG C, 6th district: 180 DEG C, 7th district: 170 DEG C, and extruder rotating speed is 35r/min, and head temperature is 165 DEG C.
That the present invention is prepared can make and be of a size of 5mm �� 5mm �� 20mm sample by porcelain chemoprevention fire burn-out proof cable material, pass through differential thermal analyzer, with 10 DEG C/min heating rate, recording glass transition temperature is 492.6 DEG C, and softening point temperature is 759 DEG C, and initial degradation temperature is 122 DEG C, peak value degradation temperature is 419 DEG C, flame temperature be under 500 DEG C of alcohol burner flame ablation under sample, burning time is 33.0s, and lighting sustained combustion is 7.6s.
Example 3
First putting in agate mortar after weighing 2kg kieselguhr and 1000g bauxite mix homogeneously, cross 200 mesh standard sieves, obtain mixed-powder after grinding 3h, the mixed-powder after grinding is moved into baking oven, at 110 DEG C, dry 3h, obtains mixed clay powder, standby; Weigh 50g aminopropyl triethoxysilane to add in 600mL mass concentration 90% alcoholic solution, be placed on magnetic stirrer and stir 30min with 300r/min rotating speed, stirring terminate after with concentration be 0.5mol/L second acid for adjusting pH to 5, prepare silane-modified liquid; Weigh mixed clay powder 1:2 by volume standby for 300g to join in above-mentioned silane-modified liquid, be placed on vortex oscillation instrument, with the oscillation of power of 40W overnight, mixed clay is modified, filter after modified end and remove filtrate, filtering residue is at room temperature dried to obtain naturally modified clay, standby; Weigh 600g silicone rubber and be placed in mill, bag roller of plasticating adds 30g urethanes and 20g hydroxy silicon oil after processing, at 300 DEG C, 2h is refined with 30r/min speed, sizing material is moved into vulcanizing press after terminating by refining again, under 10MPa pressure, discharging after vulcanization reaction 25min, obtains sulphurated siliastic; Weigh the 400g sulphurated siliastic prepared and the standby modified clay of 150g, put into ground and mixed in corundum mortar uniform, pour in 5L beaker, the waterglass of mixture cumulative volume 2 times is added in beaker, being put into by beaker in ultrasonic disperse instrument, under 300W power, ultrasonic mixing 20min obtains mixed material again; Mixed material is moved into banbury, it is heated to 200 DEG C, become after molten condition until rubber, continuously add 10mL di-isopropylbenzene hydroperoxide as cross-linking agent, insulation cross-linking reaction 50min, using double screw extruder pelletize after reaction, namely obtaining after putting into oven drying can porcelain chemoprevention fire burn-out proof cable material.
Described double screw extruder parameter is a district: 145 DEG C, 2nd district: 155 DEG C, 3rd district: 175 DEG C, 4th district: 180 DEG C, 5th district: 185 DEG C, 6th district: 180 DEG C, 7th district: 170 DEG C, and extruder rotating speed is 40r/min, and head temperature is 170 DEG C.
That the present invention is prepared can make and be of a size of 5mm �� 5mm �� 20mm sample by porcelain chemoprevention fire burn-out proof cable material, pass through differential thermal analyzer, with 10 DEG C/min heating rate, recording glass transition temperature is 498.2 DEG C, and softening point temperature is 786 DEG C, and initial degradation temperature is 128 DEG C, peak value degradation temperature is 421 DEG C, flame temperature be under 550 DEG C of alcohol burner flame ablation under sample, burning time is 35.6s, and lighting sustained combustion is 8.9s.
Claims (2)
1. one kind can the preparation method of porcelain chemoprevention fire burn-out proof cable material, it is characterised in that concrete preparation process is:
(1) put in agate mortar after weighing 1��2kg kieselguhr and 500��1000g bauxite mix homogeneously, cross 200 mesh standard sieves after grinding 2��3h, obtain mixed-powder, mixed-powder after grinding is moved into baking oven, at 105��110 DEG C, dry 2��3h, obtains mixed clay powder, standby;
(2) weigh 30��50g aminopropyl triethoxysilane and add in 500��600mL mass concentration 90% alcoholic solution, it is placed on magnetic stirrer and stirs 20��30min with 200��300r/min rotating speed, stirring terminate after with concentration be 0.5mol/L second acid for adjusting pH to 4��5, prepare silane-modified liquid;
(3) weigh mixed clay powder 1:2 by volume standby for 200��300g and join in above-mentioned silane-modified liquid, it is placed on vortex oscillation instrument, with the oscillation of power of 30��40W overnight, mixed clay is modified, filter after modified end and remove filtrate, filtering residue is at room temperature dried to obtain naturally modified clay, standby;
(4) weigh 500��600g silicone rubber and be placed in mill, bag roller of plasticating adds 20��30g urethanes and 15��20g hydroxy silicon oil after processing, at 250��300 DEG C, 1��2h is refined with 20��30r/min speed, sizing material is moved into vulcanizing press after terminating by refining again, under 8��10MPa pressure, discharging after vulcanization reaction 15��25min, obtains sulphurated siliastic;
(5) the above-mentioned prepared sulphurated siliastic of 300��400g and the standby modified clay of 100��150g step (3) are weighed, put into ground and mixed in corundum mortar uniform, pour in 5L beaker, the waterglass of mixture cumulative volume 1��2 times is added in beaker, being put into by beaker in ultrasonic disperse instrument, under 200��300W power, ultrasonic mixing 15��20min obtains mixed material again;
(6) above-mentioned mixed material is moved into banbury, it is heated to 180��200 DEG C, become after molten condition until rubber, continuously add 5��10mL di-isopropylbenzene hydroperoxide as cross-linking agent, insulation cross-linking reaction 30��50min, using double screw extruder pelletize after reaction, namely obtaining after putting into oven drying can porcelain chemoprevention fire burn-out proof cable material.
2. according to claim 1 a kind of can the preparation method of porcelain chemoprevention fire burn-out proof cable material, it is characterized in that: described double screw extruder parameter is a district: 145 DEG C, 2nd district: 155 DEG C, 3rd district: 175 DEG C, 4th district: 180 DEG C, 5th district: 185 DEG C, 6th district: 180 DEG C, 7th district: 170 DEG C, extruder rotating speed is 30��40r/min, and head temperature is 160��170 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610078572.0A CN105623269A (en) | 2016-02-04 | 2016-02-04 | Preparation method of vitrifiable fireproof ablation-preventive cable material |
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| CN201610078572.0A CN105623269A (en) | 2016-02-04 | 2016-02-04 | Preparation method of vitrifiable fireproof ablation-preventive cable material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009695A (en) * | 2016-06-25 | 2016-10-12 | 陈毅忠 | Preparation method of high-strength ceramic silicone rubber |
| CN107722535A (en) * | 2017-09-25 | 2018-02-23 | 江苏奔拓电气科技有限公司 | A kind of preparation method of fire-resistant silicon rubber cable |
-
2016
- 2016-02-04 CN CN201610078572.0A patent/CN105623269A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009695A (en) * | 2016-06-25 | 2016-10-12 | 陈毅忠 | Preparation method of high-strength ceramic silicone rubber |
| CN107722535A (en) * | 2017-09-25 | 2018-02-23 | 江苏奔拓电气科技有限公司 | A kind of preparation method of fire-resistant silicon rubber cable |
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