CN108314821A - A kind of preparation method of modified magnalium hydrotalcite cable filler - Google Patents
A kind of preparation method of modified magnalium hydrotalcite cable filler Download PDFInfo
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- CN108314821A CN108314821A CN201810137408.1A CN201810137408A CN108314821A CN 108314821 A CN108314821 A CN 108314821A CN 201810137408 A CN201810137408 A CN 201810137408A CN 108314821 A CN108314821 A CN 108314821A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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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
Abstract
The invention discloses a kind of preparation methods of modified magnalium hydrotalcite cable filler, belong to cable filler preparing technical field.Ludox is prepared first with teos hydrolysis method, due to containing silica in Ludox, it can be effectively isolated contact of the oxygen with base material in air, in addition bimaleimide resin has heat resistance, this resin is under heated or catalyst action, it is easy to be formed by curing triazine ring structure in polyethylene surface, to improve the compatibility of self-control magnalium hydrotalcite and base material, making magnalium hydrotalcite uniform particle by oneself is dispersed in substrate surface simultaneously, to reduce the surface temperature of base material, play flame retardant effect, in addition during making magnalium hydrotalcite endothermic decomposition by oneself, obtain Alkaline porous composite oxides, it is combined to form protective film with the carbonizing production of substrate surface, effectively prevent the intrusion of heat and oxygen, further increase the anti-flammability of cable filler, it is with a wide range of applications.
Description
Technical field
The invention discloses a kind of preparation methods of modified magnalium hydrotalcite cable filler, belong to cable filler preparation
Technical field.
Background technology
Wires and cables industry is the second largest industry that China is only second to automobile industry, product variety Service Efficiency and domestic market
Occupation rate is more than 90%.Worldwide, the Chinese electric wire gross output value has been more than the U.S., becomes the first big electricity in the world
Line cable producing country.Along with Chinese wires and cables industry high speed development, creation of new enterprise quantity constantly rises, industry overall technology
Level is largely increased.The growth of China's economic continuously and healthily provides the huge market space, Chinese city for cable products
The strong temptation of field strength so that sight is all focused on Chinese market by the world, in short decades of reforming and opening up to the outside world, Chinese cable
Manufacturing industry, which is formed by huge production capacity, allows the world to regard with special esteem.With China electric power industry, data communication industry, city rail
The continuous expansion of the industry sizes such as communications, car industry and shipbuilding, the demand to electric wire will also be increased rapidly, not sent a telegram here
Line cable industry it also has huge development potentiality.Cable includes mainly internal cable core and the sheath being coated on outside cable core composition, shield
Gap between set and cable core is typically all to be filled with filler material, and the filler material overwhelming majority on the market is common material at present
Material, therefore in fact heat-insulated and corrosion resistance is all poor, it is bigger for the influence of sheath in this way, and heat is high, leads to sheath
Fusing, or even cause to burn.
The application of China's high voltage power cable is very universal and extensively, high voltage power cable be laid in mostly underground its
Environment is mostly more moist.Moisture easily penetrates into inside the construction of cable very much, therefore in normal high pressure energization electric stress reason
By thinking, cable produce and operational process in internal stress be to promote water tree branch growth the main reason for.When cable is passing through
When by voltage and water, in High voltage power frequence electric field, polar water molecules generate strong migration and by electric field energy be converted into kinetic energy and
Thermal energy obtains the hydrone of huge energy in insulating inner strenuous exercise.When hydrone energy is enough to interrupt cable insulation
When XLPE strands, subtle crackle will be generated in insulating inner, the strain of the XLPE insulation near conductor will increase
Add, and water tree is just generated straining larger region.The dielectric level for substantially reducing insulating materials, so as to shorten cable
Service life causes huge economic loss.
Therefore, a kind of modified magnalium hydrotalcite cable filler of invention has cable filler preparing technical field positive
Meaning.
Invention content
The technical problems to be solved by the invention：For current common cable filler material, that there are heat-resisting quantities is poor, corrosion-resistant
Property difference and poor fire, can not meet the defect of market demands, provide a kind of modified magnalium hydrotalcite cable filler
Preparation method.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of preparation method of modified magnalium hydrotalcite cable filler, it is characterised in that specifically preparation process is：
（1）Absolute ethyl alcohol, ammonium hydroxide and deionized water are mixed to be put into beaker and stirred, obtains mixed liquor, then be added into beaker
The absolute ethyl alcohol of the ethyl orthosilicate and mixeding liquid volume 0.4% of mixeding liquid volume 5% is mixed reaction, obtains reaction solution,
Reaction solution is taken out, the mixing of reaction solution, bimaleimide resin and polyethylene is placed in beaker and is stirred to react, cooling discharging,
Obtain modified poly ethylene；
（2）It weighs 12~16g sodium hydroxides and the burning with 60~75mL deionized waters is poured into the mixing of 8~10g natrium carbonicum calcinatums
It is stirred in cup, obtains mixed ammonium/alkali solutions, then magnesium chloride hexahydrate, six water alchlors and deionized water are mixed, mixed
Salting liquid is closed, measures 45~50mL mixing salt solutions and 24~32mL mixed ammonium/alkali solutions respectively, it is spare, it is adjusted with mixed ammonium/alkali solutions
Mixing salt solution pH to 11~13, obtains suspension；
（3）Suspension is placed in it is still aging at room temperature, filtering removal filtrate, take out filter residue, filter residue is washed with deionized, will
Filter residue after washing is placed in drying in baking oven, and grinding discharging obtains self-control magnalium hydrotalcite powder, continues that magnalium neatly will be made by oneself
Stone powder and sodium tripolyphosphate mixing are placed in beaker and are stirred to react, cooling discharging, obtain modified self-control magnalium hydrotalcite powder；
（4）It counts in parts by weight, weighs 36~40 parts of modified poly ethylenes, 12~16 parts of modified self-control magnalium hydrotalcite powder respectively
End, 3~5 parts of lauryl sodium sulfate and 1~3 part of absolute ethyl alcohol mixing are fitted into extruding machine, are plasticized, are obtained under nitrogen protection
Molten state mixture is put into after taking-up after being sealed in hot water storgae, is continued to be put into room temperature sink and is sealed, and air-dries discharging, i.e.,
Magnalium hydrotalcite cable filler must be modified.
Step（1）The volume ratio of the absolute ethyl alcohol, the ammonium hydroxide that mass fraction is 21% and deionized water is 4：1：2,
Whipping temp is 32~48 DEG C, and mixing time is 16~20min, and it is 52~68 DEG C to be stirred to react temperature, and it is 1 to be stirred to react the time
The mass ratio of~3h, reaction solution, bimaleimide resin and polyethylene are 2：1：5, continue to be stirred to react temperature to be 86~90
DEG C, continue to be stirred to react the time as 45~60min.
Step（2）The mixing time be 6~9min, magnesium chloride hexahydrate, six water alchlors and deionized water matter
Amount is than being 3：1：5, the mixing time is 12~16min.
Step（3）The still aging time is 3~5h, and washing times are 2~4 times, and drying temperature is 81~90 DEG C,
Drying time is 35~45min, and the mass ratio for making magnalium hydrotalcite powder and sodium tripolyphosphate by oneself is 4：1, it is stirred to react temperature
It it is 52~61 DEG C, it is 24~32min to be stirred to react the time.
Step（4）The plasticization temperature is 150~180 DEG C, and fusion time is 1~2h, and seal temperature is 75~95 DEG C,
Sealing period is 12~16min, and continuation Sealing period is 16~20min.
Compared with other methods, advantageous effects are the present invention：
（1）For the present invention using polyethylene as base material, modified self-control magnalium hydrotalcite powder is aided with dodecyl sulphur as modifying agent
Modified magnalium hydrotalcite cable filler is prepared in sour sodium and absolute ethyl alcohol etc., is prepared first with teos hydrolysis method
Ludox, due to containing silica in Ludox, it can be effectively isolated contact of the oxygen with base material in air, be conducive to cable
The heat-resisting quantity and anti-flammability of filler material are improved, and recycle Ludox and bimaleimide resin to carry out polyethylene double
It is modified again, is reacted since the silica in Ludox can be crosslinked with the hydroxyl in polyethylene, form reticular structure,
Promote the structure of polyethylene layer finer and close, effectively stop the erosion of the corrosive goods confrontation polyethylene such as outside water and oxygen,
To improve the corrosion resistance of cable filler, in addition bimaleimide resin has a heat resistance, this resin heated or
Under catalyst action, it is easy to be formed by curing triazine ring structure in polyethylene surface, triazine ring structure enhances the resistance to height of polyethylene
Warm nature energy improves the heat-resisting quantity of cable filler again；
（2）Self-control magnalium hydrotalcite is prepared by saline and alkaline coprecipitation in the present invention, using sodium tripolyphosphate to making magnalium by oneself
Hydrotalcite carries out surface modification, P3O10 5-It is adsorbed in self-control magnalium hydrotalcite surface with different types of-O-P-O- keys, and respectively
Coordination bonding occurs with the magnesium ion and aluminium ion made by oneself in magnalium hydrotalcite to react, to form layer protecting film, reduces certainly
Magnalium hydrotalcite particle surface polarity processed enhances the self-control interparticle space steric effect of magnalium hydrotalcite, to improve certainly
The compatibility of magnalium hydrotalcite and base material processed, while making magnalium hydrotalcite uniform particle by oneself and being dispersed in substrate surface, it is formed fine and close
Cross-linked network structure, hinder fuel gas and enter inside base material, while base material is not easy, by acid and alkali corrosion, to improve cable and fill out
The anti-flammability and corrosion resistance of charge have high temperature section due to making the existing low-temperature zone of decomposition temperature of magnalium hydrotalcite by oneself not only, open up
Wide resistance combustion temperature range, sloughs the absorption water and intermediary water of self-control magnalium hydrotalcite, hydroxyl is de- during endothermic decomposition
Water is escaped with vapor form, and decompose release water outlet and carbon dioxide, these substances can absorb a large amount of calory burnings, effectively
The concentration of dilution oxygen and imflammable gas plays flame retardant effect to reduce the surface temperature of base material, in addition in self-control magnesium
During aluminum hydrotalcite endothermic decomposition, Alkaline porous composite oxides are obtained, by the carbonizing production combination shape of itself and substrate surface
At protective film, the intrusion of heat and oxygen is effectively prevented, the anti-flammability of cable filler is further increased, has a wide range of applications
Foreground.
Specific implementation mode
It is 4 by volume：1：Absolute ethyl alcohol, the ammonium hydroxide that mass fraction is 21% and deionized water are mixed and are put into beaker by 2
In, 16~20min is stirred at being 32~48 DEG C in temperature, obtains mixed liquor, then mixeding liquid volume 5% is being added just into beaker
The absolute ethyl alcohol of silester and mixeding liquid volume 0.4% is mixed 1~3h of reaction at being 52~68 DEG C in temperature, obtains
Reaction solution takes out reaction solution, is 2 in mass ratio by reaction solution, bimaleimide resin and polyethylene：1：5 mixing are placed in burning
In cup, it is stirred to react 45~60min at being 86~90 DEG C in temperature, cooling discharging obtains modified poly ethylene；Weigh 12~16g
6~9min of stirring in the beaker with 60~75mL deionized waters is poured into sodium hydroxide and the mixing of 8~10g natrium carbonicum calcinatums, is obtained
It is 3 in mass ratio to mixed ammonium/alkali solutions, then by magnesium chloride hexahydrate, six water alchlors and deionized water：1：5 be mixed 12~
16min obtains mixing salt solution, measures 45~50mL mixing salt solutions and 24~32mL mixed ammonium/alkali solutions respectively, spare, with mixed
It closes aqueous slkali and adjusts mixing salt solution pH to 11~13, obtain suspension；Suspension is placed in still aging 3~5h at room temperature,
Filtering removal filtrate, takes out filter residue, filter residue is washed with deionized 2~4 times, the filter residue after washing is placed in baking oven, in temperature
Degree is dry 35~45min at 81~90 DEG C, and grinding discharging obtains self-control magnalium hydrotalcite powder, continues that magnalium water will be made by oneself
Talcum powder and sodium tripolyphosphate are 4 in mass ratio：1 mixing is placed in beaker, and 24 are stirred to react at being 52~61 DEG C in temperature
~32min, cooling discharging obtain modified self-control magnalium hydrotalcite powder；It counts in parts by weight, weighs 36~40 parts of modifications respectively
Polyethylene, 12~16 parts of modified self-control magnalium hydrotalcite powder, 3~5 parts of lauryl sodium sulfate and 1~3 part of absolute ethyl alcohol are mixed
It attaches together in extruding machine, is 150~180 DEG C, is plasticized 1~2h under nitrogen protection in temperature, molten state mixture is obtained, after taking-up
Be put into hot water storgae, after being sealed 12~16min at being 75~95 DEG C in temperature, continue to be put into room temperature sink sealing 16~
20min air-dries discharging to get modified magnalium hydrotalcite cable filler.
Example 1
It is 4 by volume：1：Absolute ethyl alcohol, the ammonium hydroxide that mass fraction is 21% and deionized water are mixed and are put into beaker by 2,
Temperature is to stir 16min at 32 DEG C, obtains mixed liquor, then the ethyl orthosilicate of mixeding liquid volume 5% and mixed is added into beaker
The absolute ethyl alcohol for closing liquid product 0.4% is mixed reaction 1h at being 52 DEG C in temperature, obtains reaction solution, take out reaction solution, will
Reaction solution, bimaleimide resin and polyethylene are 2 in mass ratio：1：5 mixing are placed in beaker, are stirred at being 86 DEG C in temperature
Reaction 45min is mixed, cooling discharging obtains modified poly ethylene；It weighs 12g sodium hydroxides and the mixing of 8g natrium carbonicum calcinatums is poured into and carried
Stir 6min in the beaker of 60mL deionized waters, obtain mixed ammonium/alkali solutions, then by magnesium chloride hexahydrate, six water alchlors and go from
Sub- water is 3 in mass ratio：1：5 are mixed 12min, obtain mixing salt solution, measure 45mL mixing salt solutions and 24mL respectively
Mixed ammonium/alkali solutions, it is spare, mixing salt solution pH to 11 is adjusted with mixed ammonium/alkali solutions, obtains suspension；Suspension is placed in room temperature
Under still aging 3h, filtering removal filtrate, take out filter residue, filter residue is washed with deionized 2 times, the filter residue after washing is placed in baking
In case, dry 35min at being 81 DEG C in temperature, grinding discharging obtains self-control magnalium hydrotalcite powder, continues that magnalium water will be made by oneself
Talcum powder and sodium tripolyphosphate are 4 in mass ratio：1 mixing is placed in beaker, and 24min is stirred to react at being 52 DEG C in temperature,
Cooling discharging obtains modified self-control magnalium hydrotalcite powder；Count in parts by weight, weigh respectively 36 parts of modified poly ethylenes, 12 parts
Modified self-control magnalium hydrotalcite powder, 3 parts of lauryl sodium sulfate and 1 part of absolute ethyl alcohol mixing are fitted into extruding machine, in temperature
To be plasticized 1h under 150 DEG C, nitrogen protection, obtain molten state mixture, be put into hot water storgae after taking-up, at being 75 DEG C in temperature into
After row sealing 12min, continue to be put into room temperature sink and seal 16min, air-dries discharging to get modified magnalium hydrotalcite cable filling
Material.
Example 2
It is 4 by volume：1：Absolute ethyl alcohol, the ammonium hydroxide that mass fraction is 21% and deionized water are mixed and are put into beaker by 2,
Temperature is to stir 18min at 40 DEG C, obtains mixed liquor, then the ethyl orthosilicate of mixeding liquid volume 5% and mixed is added into beaker
The absolute ethyl alcohol for closing liquid product 0.4% is mixed reaction 2h at being 60 DEG C in temperature, obtains reaction solution, take out reaction solution, will
Reaction solution, bimaleimide resin and polyethylene are 2 in mass ratio：1：5 mixing are placed in beaker, are stirred at being 88 DEG C in temperature
Reaction 55min is mixed, cooling discharging obtains modified poly ethylene；It weighs 14g sodium hydroxides and the mixing of 9g natrium carbonicum calcinatums is poured into and carried
Stir 7min in the beaker of 70mL deionized waters, obtain mixed ammonium/alkali solutions, then by magnesium chloride hexahydrate, six water alchlors and go from
Sub- water is 3 in mass ratio：1：5 are mixed 14min, obtain mixing salt solution, measure 47mL mixing salt solutions and 28mL respectively
Mixed ammonium/alkali solutions, it is spare, mixing salt solution pH to 12 is adjusted with mixed ammonium/alkali solutions, obtains suspension；Suspension is placed in room temperature
Under still aging 4h, filtering removal filtrate, take out filter residue, filter residue is washed with deionized 3 times, the filter residue after washing is placed in baking
In case, dry 40min at being 86 DEG C in temperature, grinding discharging obtains self-control magnalium hydrotalcite powder, continues that magnalium water will be made by oneself
Talcum powder and sodium tripolyphosphate are 4 in mass ratio：1 mixing is placed in beaker, and 28min is stirred to react at being 57 DEG C in temperature,
Cooling discharging obtains modified self-control magnalium hydrotalcite powder；Count in parts by weight, weigh respectively 38 parts of modified poly ethylenes, 14 parts
Modified self-control magnalium hydrotalcite powder, 4 parts of lauryl sodium sulfate and 2 parts of absolute ethyl alcohol mixing are fitted into extruding machine, in temperature
To be plasticized 1.5h under 165 DEG C, nitrogen protection, molten state mixture is obtained, is put into hot water storgae after taking-up, in the case where temperature is 85 DEG C
After being sealed 14min, continue to be put into room temperature sink and seal 18min, air-dries discharging and filled out to get modified magnalium hydrotalcite cable
Charge.
Example 3
It is 4 by volume：1：Absolute ethyl alcohol, the ammonium hydroxide that mass fraction is 21% and deionized water are mixed and are put into beaker by 2,
Temperature is to stir 20min at 48 DEG C, obtains mixed liquor, then the ethyl orthosilicate of mixeding liquid volume 5% and mixed is added into beaker
The absolute ethyl alcohol for closing liquid product 0.4% is mixed reaction 3h at being 68 DEG C in temperature, obtains reaction solution, take out reaction solution, will
Reaction solution, bimaleimide resin and polyethylene are 2 in mass ratio：1：5 mixing are placed in beaker, are stirred at being 90 DEG C in temperature
Reaction 60min is mixed, cooling discharging obtains modified poly ethylene；It weighs 16g sodium hydroxides and band is poured into the mixing of 10g natrium carbonicum calcinatums
9min is stirred in the beaker for there are 75mL deionized waters, obtains mixed ammonium/alkali solutions, then by magnesium chloride hexahydrate, six water alchlors and go
Ionized water is 3 in mass ratio：1：5 be mixed 16min, obtain mixing salt solution, respectively measure 50mL mixing salt solutions and
32mL mixed ammonium/alkali solutions, it is spare, mixing salt solution pH to 13 is adjusted with mixed ammonium/alkali solutions, obtains suspension；Suspension is placed in
Still aging 5h at room temperature, filtering removal filtrate, takes out filter residue, filter residue is washed with deionized 4 times, the filter residue after washing is set
In baking oven, dry 45min at being 90 DEG C in temperature, grinding discharging obtains self-control magnalium hydrotalcite powder, continues that magnesium will be made by oneself
Aluminum hydrotalcite powder and sodium tripolyphosphate are 4 in mass ratio：1 mixing is placed in beaker, is stirred to react at being 61 DEG C in temperature
32min, cooling discharging obtain modified self-control magnalium hydrotalcite powder；It counts in parts by weight, weighs 40 parts of poly- second of modification respectively
Alkene, 16 parts of modified self-control magnalium hydrotalcite powder, 5 parts of lauryl sodium sulfate and 3 parts of absolute ethyl alcohol mixing are fitted into extruding machine,
It is 180 DEG C, is plasticized 2h under nitrogen protection in temperature, obtains molten state mixture, be put into hot water storgae after taking-up, be 95 in temperature
After being sealed 16min at DEG C, continue to be put into room temperature sink and seal 20min, air-dries discharging to get modified magnalium hydrotalcite electricity
Cable filler material.
Comparative example
Modified magnalium hydrotalcite cable filler is produced as a comparison case to modified magnalium produced by the present invention with Hebei company
Modification magnalium hydrotalcite cable filler in hydrotalcite cable filler and comparative example carries out performance detection, testing result such as table
Shown in 1：
1, test method：
High temperature resistant is tested：Tensile strength and the fracture of the cable filler in example 1~3 and comparative example are measured under high temperature environment
Elongation；
Acid resistance test method：Cable filler in example 1~3 and comparative example is respectively placed in mass fraction 1%HCl and is soaked
72h is steeped, situation of change is observed；
Alkali resistance test method：It is molten that cable filler in example 1~3 and comparative example is respectively placed in mass fraction 1%NaOH
72h is impregnated in liquid, observes situation of change；
The oxygen index (OI) of cable filler and comparative example cable filler of the present invention is measured with oxygen index (OI) tester.
1 cable filler performance measurement result of table
| Test event | Example 1 | Example 2 | Example 3 | Comparative example |
| Tensile strength（MPa） | 15.1 | 15.3 | 15.4 | 8.5 |
| Elongation at break（%） | 237 | 240 | 245 | 150 |
| Acid resistance | It is without exception, it is qualified | It is without exception, it is qualified | It is without exception, it is qualified | There is corrosion phenomenon |
| Alkali resistance | It is without exception, it is qualified | It is without exception, it is qualified | It is without exception, it is qualified | There is corrosion phenomenon |
| Oxygen index (OI) | 53 | 55 | 58 | 20 |
It is good according to the modified magnalium hydrotalcite cable filler high temperature resistance produced by the present invention of data among the above, in high temperature
Environment Tensile strength and elongation at break are high, and corrosion resistance and good, flame retardant property is good, and oxygen index (OI) is high, have wide application
Foreground.
Claims (5)
1. a kind of preparation method of modified magnalium hydrotalcite cable filler, it is characterised in that specifically preparation process is：
（1）Absolute ethyl alcohol, ammonium hydroxide and deionized water are mixed to be put into beaker and stirred, obtains mixed liquor, then be added into beaker
The absolute ethyl alcohol of the ethyl orthosilicate and mixeding liquid volume 0.4% of mixeding liquid volume 5% is mixed reaction, obtains reaction solution,
Reaction solution is taken out, the mixing of reaction solution, bimaleimide resin and polyethylene is placed in beaker and is stirred to react, cooling discharging,
Obtain modified poly ethylene；
（2）It weighs 12~16g sodium hydroxides and the burning with 60~75mL deionized waters is poured into the mixing of 8~10g natrium carbonicum calcinatums
It is stirred in cup, obtains mixed ammonium/alkali solutions, then magnesium chloride hexahydrate, six water alchlors and deionized water are mixed, mixed
Salting liquid is closed, measures 45~50mL mixing salt solutions and 24~32mL mixed ammonium/alkali solutions respectively, it is spare, it is adjusted with mixed ammonium/alkali solutions
Mixing salt solution pH to 11~13, obtains suspension；
（3）Suspension is placed in it is still aging at room temperature, filtering removal filtrate, take out filter residue, filter residue is washed with deionized,
Filter residue after washing is placed in drying in baking oven, grinding discharging obtains self-control magnalium hydrotalcite powder, continues that magnalium water will be made by oneself
Talcum powder and sodium tripolyphosphate mixing are placed in beaker and are stirred to react, cooling discharging, obtain modified self-control magnalium hydrotalcite powder
End；
（4）It counts in parts by weight, weighs 36~40 parts of modified poly ethylenes, 12~16 parts of modified self-control magnalium hydrotalcite powder respectively
End, 3~5 parts of lauryl sodium sulfate and 1~3 part of absolute ethyl alcohol mixing are fitted into extruding machine, are plasticized, are obtained under nitrogen protection
Molten state mixture is put into after taking-up after being sealed in hot water storgae, is continued to be put into room temperature sink and is sealed, and air-dries discharging, i.e.,
Magnalium hydrotalcite cable filler must be modified.
2. a kind of preparation method of modified magnalium hydrotalcite cable filler according to claim 1, it is characterised in that：Step
Suddenly（1）The volume ratio of the absolute ethyl alcohol, the ammonium hydroxide that mass fraction is 21% and deionized water is 4：1：2, whipping temp is
32~48 DEG C, mixing time is 16~20min, and it is 52~68 DEG C to be stirred to react temperature, and it is 1~3h, reaction to be stirred to react the time
The mass ratio of liquid, bimaleimide resin and polyethylene is 2：1：5, continue to be stirred to react temperature to be 86~90 DEG C, continues to stir
It is 45~60min to mix the reaction time.
3. a kind of preparation method of modified magnalium hydrotalcite cable filler according to claim 1, it is characterised in that：Step
Suddenly（2）The mixing time is 6~9min, and the mass ratio of magnesium chloride hexahydrate, six water alchlors and deionized water is 3：1：
5, the mixing time is 12~16min.
4. a kind of preparation method of modified magnalium hydrotalcite cable filler according to claim 1, it is characterised in that：Step
Suddenly（3）The still aging time is 3~5h, and washing times are 2~4 times, and drying temperature is 81~90 DEG C, and drying time is
35~45min, the mass ratio for making magnalium hydrotalcite powder and sodium tripolyphosphate by oneself is 4：1, it is 52~61 DEG C to be stirred to react temperature,
It is 24~32min to be stirred to react the time.
5. a kind of preparation method of modified magnalium hydrotalcite cable filler according to claim 1, it is characterised in that：Step
Suddenly（4）The plasticization temperature is 150~180 DEG C, and fusion time is 1~2h, and seal temperature is 75~95 DEG C, and Sealing period is
12~16min, continuation Sealing period are 16~20min.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206887A (en) * | 2018-08-27 | 2019-01-15 | 芜湖市元奎新材料科技有限公司 | A kind of polyphenylene oxide Composite Fame-retardant Material and preparation method thereof |
| CN111087672A (en) * | 2019-12-20 | 2020-05-01 | 周璇 | Preparation method of modified crosslinked polyethylene insulated wire and cable |
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| CN109206887A (en) * | 2018-08-27 | 2019-01-15 | 芜湖市元奎新材料科技有限公司 | A kind of polyphenylene oxide Composite Fame-retardant Material and preparation method thereof |
| CN111087672A (en) * | 2019-12-20 | 2020-05-01 | 周璇 | Preparation method of modified crosslinked polyethylene insulated wire and cable |
| CN113980351A (en) * | 2021-12-08 | 2022-01-28 | 烟台艾弗尔阻燃科技有限公司 | Preparation method of modified magnesium hydroxide flame retardant and application of modified magnesium hydroxide flame retardant in low-smoke halogen-free cable material |
| CN114702880A (en) * | 2022-04-06 | 2022-07-05 | 福建福松新材料科技有限公司 | Anti-cracking antioxidant antirust epoxy finish paint and preparation method thereof |
| CN114702880B (en) * | 2022-04-06 | 2022-12-23 | 福建福松新材料科技有限公司 | Anti-cracking antioxidant antirust epoxy finish paint and preparation method thereof |
| CN115259095A (en) * | 2022-07-13 | 2022-11-01 | 塔里木大学 | Method for preparing hydrotalcite-type layered hydroxide by utilizing saline-alkali soil and application |
| CN115259095B (en) * | 2022-07-13 | 2023-11-07 | 塔里木大学 | Method for preparing hydrotalcite type layered hydroxide by using saline-alkali soil and application |
| CN115109353A (en) * | 2022-07-20 | 2022-09-27 | 巢湖市金鸿电缆有限公司 | Processing method of fluorescent flame-retardant cable |
| CN115109353B (en) * | 2022-07-20 | 2023-12-15 | 巢湖市金鸿电缆有限公司 | Processing method of fluorescent flame-retardant cable |
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Application publication date: 20180724 |