CN106519376A - Modified fumed silica and teflon cooperated oil resistance enhanced polyethylene cable material - Google Patents
Modified fumed silica and teflon cooperated oil resistance enhanced polyethylene cable material Download PDFInfo
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- CN106519376A CN106519376A CN201610901998.1A CN201610901998A CN106519376A CN 106519376 A CN106519376 A CN 106519376A CN 201610901998 A CN201610901998 A CN 201610901998A CN 106519376 A CN106519376 A CN 106519376A
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- fumed silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
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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
- C08L2201/22—Halogen free composition
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a modified fumed silica and teflon cooperated oil resistance enhanced polyethylene cable material. Methyl vinyl siloxane is utilized for surface modification of fumed silica; modified fumed silica and teflon are compounded; and the composite material prepared from modified fumed silica and teflon is added into a matrix polyethylene material, and the composite material is uniformly dispersed and has excellent compatibility with the matrix. Then, oil resistance and corrosion resistance of the polymer material can be enhanced. The product of the invention has good mechanical properties and also has good oil resistance, flame resistance and breakdown resistance. Original physical properties of the product can remain unchanged in various greasy dirt environments. The product is suitable for manufacturing of cables for oil-submerged pumps, cables for petroleum industry and the like, and has excellent comprehensive performance.
Description
Technical field
The present invention relates to CABLE MATERIALS technical field, more particularly to a kind of modified fumed silica collaboration polytetrafluoroethylene (PTFE) is resistance to
The enhanced poly-ethylene cable material of oiliness.
Background technology
Polyethylene is because with excellent electrical property, mechanical property, chemical-resistance and good processing characteristics, extensively should
For making the daily living articles such as film, tubing, electric wire, plastic products, packaging material and other high-grade, precision and advanced engineering skills
Art field.Wherein low density polyethylene (LDPE) has prominent pliability and an insulating properties, nontoxic and be easy to coloring, is largely used to cable
Material, replaces halogen-containing polyvinyl chloride.Electric wire can constantly be subject to electricity, heat and mechanical stress etc. various in application process
During the comprehensive function, such as overcurrent of factor, conductor can inject electronics and hole to insulating barrier, and insulating barrier easily occurs electronics
Or hole accumulation, Space-charge effect is formed, is caused electric field distortion, electrical breakdown is occurred when serious, transmission of electricity accident is caused；Therefore, seek
Look for effective way to suppress space charge accumulation, be homogenized insulating barrier Electric Field Distribution, suppress electric branch growth, extend the use longevity of cable
Life, is to prepare high-performance electric wire problem demanding prompt solution.
《The preparation of multi-layer mesoporous nano-MgO/LDPE Composite and its insulating properties》Using low in one text
Boiling point solvent method prepares multi-layer mesoporous structure nano magnesia, realizes uniform point in low density polyethylene (LDPE) of nano magnesia
Dissipate, restrained effectively space charge accumulation under the low density polyethylene (LDPE) 70KV/mm electric fields for adding 1% nano magnesia, improve
Dc breakdown intensity, reduces dielectric constant, while effectively inhibiting electronics and hole injection in the case where high field is strong, prevents tunnel
The generation of channel effect, it is suppressed that the generation of Space-charge effect, the dielectric properties of composite are met as High Performance Insulation material
Use condition.But as the oxygen index (OI) of polythene material is than relatively low, belong to combustible material, in addition it is also necessary to which fire-retardant changing is carried out to which
Property after could further meet the use demand of CABLE MATERIALS, the combination property of cable insulation material determines that wire is used safely
Property, therefore it is required that carrying out while Dielectric Properties carrying out its anti-flammability, heat endurance, mechanical property etc. to insulating materials
Further investigation.
The content of the invention
The object of the invention is exactly for the defect for making up prior art, there is provided a kind of modified fumed silica collaboration poly- four
The enhanced poly-ethylene cable material of PVF oil resistivity.
The present invention is achieved by the following technical solutions：
A kind of modified fumed silica cooperates with the enhanced poly-ethylene cable material of polytetrafluoroethylene (PTFE) oil resistivity, by following weight portion
Raw material is made：Low density polyethylene (LDPE) 100-105, appropriate absolute ethyl alcohol, nano magnesia 1.5-2, Silane coupling agent KH550 0.1-
0.12nd, sodium hydroxide solution 400-420, the formalin that concentration is 45wt% for 2wt% of enzymolysis xylogen 20-22, concentration
6-7, melamine 15-16,0.1mol/L hydrochloric acid is appropriate, sodium pyrophosphate 4-5, microencapsulated powder oil 5-6, deionized water are fitted
Amount, stearic acid octadecyl 2-3, fume colloidal silica 7-9, methyl vinyl silicone 2-3, polytetrafluorethylepowder powder 3-4, hydrogen
Calcium oxide 3-4.
A kind of modified fumed silica cooperates with the enhanced poly-ethylene cable material of polytetrafluoroethylene (PTFE) oil resistivity, by following
Concrete steps are made：
（1）By nano magnesia ultrasonic disperse in the 4-5 times of absolute ethyl alcohol measured, it is centrifuged, is dried, will be dried nano oxidized
Magnesium is put in Muffle furnace, is warming up to 200-220 DEG C with the heating rate of 3-5 DEG C/min, is incubated 30-40 minutes, is taken out after cooling
It is stand-by；Silane coupling agent KH550 is dissolved in the 10-12 times of absolute ethyl alcohol measured, is then mixed with the nano magnesia after calcining,
It is centrifuged after ultrasonic disperse 30-40 minutes, filters, is dried, obtains modified Nano magnesia；
（2）The sodium hydroxide solution of enzymolysis xylogen and concentration for 2wt% is mixed, with 300-400 rev/min of speed stir to
Be completely dissolved, be heated to 90-95 DEG C, concentration is added for the formalin of 45wt%, continuation after stirring reaction 100-120 minute
Melamine is added, it is in being slowly added dropwise the hydrochloric acid of 0.1mol/L after continuing reaction 90-120 minutes and rear stand-by；By sodium pyrophosphate
It is dissolved in the 18-20 times of deionized water measured, is subsequently adding in above-mentioned reaction, continue stirring reaction 60-90 minute, precipitation is generated,
Stand, filter, deionized water is cleaned 2-3 time, being dried with 80-90 DEG C of temperature in being then placed in vacuum drying chamber, final powder
It is broken, 200 mesh sieves are crossed, modified enzymolysis lignin is obtained；
（3）To add in the 6-7 times of absolute ethyl alcohol measured in methyl vinyl silicone, stir to being completely dissolved, be subsequently adding gas
Phase method white carbon, centrifugation after ultrasonic disperse 30-40 minutes stand, then filter cake is put in baking oven the temperature drying with 80-90 DEG C
It is stand-by；Polytetrafluorethylepowder powder is put in high speed mixer, powder, calcium hydroxide after above-mentioned drying is subsequently adding, is heated to
170-180 DEG C, to discharge after the speed stirring 15-20 minutes of 800-1000 turn/part, obtain modified filler；
（4）By step（1）（2）（3）The product for obtaining is put into jointly mixed at a high speed with low density polyethylene (LDPE) and remaining residual components
In material machine, to send in double roller open mill after the speed stirring mixing 10-12 minutes of 800-1000 turn/part, control is warm
150-160 DEG C of degree is kneaded, and is then fed in double screw extruder, 150-170 DEG C of temperature control, is carried out extruding pelletization and obtain final product.
It is an advantage of the invention that：The present invention using Mannich reaction principle by formaldehyde, melamine, sodium pyrophosphate etc. into
Point it is modified reaction to enzymolysis xylogen, generation modified enzymolysis lignin, as a kind of carbon source in thermal decomposition process, can be with
Thermal decomposition to macromolecular material plays inhibitory action, is compounded with microencapsulated powder oil, is added to low density polyethylene (LDPE) cable
In the preparation of material, synergy is with obvious flame-retardant smoke inhibition effect, while the flame-retardant composition of addition is not halogen, by natural materials
Generate, those non-renewable resources, safety and environmental protection can be substituted, while flame retardant effect is excellent；The present invention also system of CABLE MATERIALS again
Modified Nano magnesia be with the addition of in standby, with meso-hole structure, is uniformly dispersed in low density polyethylene (LDPE) by batch mixing, compared with
Electronics and hole injection is effectively inhibited under high field intensity, is prevented the generation of tunnel-effect, it is suppressed that the generation of Space-charge effect, is carried
High dc breakdown intensity, improves anti-breakdown performance and the insulation stability of CABLE MATERIALS of the present invention.
The present invention carries out to aerosil using methyl vinyl silicone that surface is modified to be entered with polytetrafluoroethylene (PTFE)
Row compounding, be added in matrix polythene material, be uniformly dispersed and good with matrix compatibility, it is possible to increase polymeric material it is resistance to
Oiliness, corrosion resistance；Product of the present invention not only has good mechanical property, while with good oil resistivity, fire-retardant, resistance
Wear, in various oil pollution environments, original physical property can be kept constant, be adapted to manufacture electric cable of submersible pump, petroleum industry cable etc., it is comprehensive
Close excellent performance.
Specific embodiment
A kind of modified fumed silica cooperates with the enhanced poly-ethylene cable material of polytetrafluoroethylene (PTFE) oil resistivity, by following weight
Part（Kilogram）Raw material make：Low density polyethylene (LDPE) 100, appropriate absolute ethyl alcohol, nano magnesia 1.5, silane coupler
KH5500.1, enzymolysis xylogen 20, concentration are the formalin 6, three of the sodium hydroxide solution 400, concentration for 45wt% of 2wt%
The hydrochloric acid of poly cyanamid 15,0.1mol/L is appropriate, sodium pyrophosphate 4, microencapsulated powder oil 5, appropriate deionized water, stearic acid octadecyl alcolol
Ester 2, fume colloidal silica 7, methyl vinyl silicone 2, polytetrafluorethylepowder powder 3, calcium hydroxide 3.
A kind of modified fumed silica cooperates with the enhanced poly-ethylene cable material of polytetrafluoroethylene (PTFE) oil resistivity, by following
Concrete steps are made：
（1）By nano magnesia ultrasonic disperse in the absolute ethyl alcohol of 4 times of amounts, it is centrifuged, is dried, by dried nano magnesia
Be put in Muffle furnace, 200 DEG C be warming up to the heating rate of 3 DEG C/min, be incubated 30 minutes, take out stand-by after cooling；By silane
Coupling agent KH550 is dissolved in the absolute ethyl alcohol of 10 times of amounts, is then mixed with the nano magnesia after calcining, ultrasonic disperse 30 minutes
It is centrifuged afterwards, filters, is dried, obtains modified Nano magnesia；
（2）The sodium hydroxide solution of enzymolysis xylogen and concentration for 2wt% is mixed, is stirred to complete with 300 revs/min of speed
Dissolving, is heated to 90 DEG C, adds the formalin that concentration is 45wt%, stirring reaction to continuously add melamine after 100 minutes
Amine, it is in being slowly added dropwise the hydrochloric acid of 0.1mol/L after continuing reaction 90 minutes and rear stand-by；Sodium pyrophosphate is dissolved in into going for 18 times of amounts
In ionized water, it is subsequently adding in above-mentioned reaction, continues stirring reaction 60 minutes, precipitation is generated, standing, filtration, deionized water
Cleaning 2 times, is dried with 80 DEG C of temperature in being then placed in vacuum drying chamber, is finally crushed, crossed 200 mesh sieves, obtain modified enzymolysis
Lignin；
（3）To add in methyl vinyl silicone in 6 times of absolute ethyl alcohols measured, stir to being completely dissolved, be subsequently adding gas phase
Method white carbon, ultrasonic disperse are centrifuged standing after 30 minutes, then filter cake is put in baking oven the temperature dried for standby with 80 DEG C；Will be poly-
Tetrafluoroethene powder is put in high speed mixer, is subsequently adding powder, calcium hydroxide after above-mentioned drying, is heated to 170 DEG C, with
The speed of 800 turns/part discharges after stirring 15 minutes, obtains modified filler；
（4）By step（1）（2）（3）The product for obtaining is put into jointly mixed at a high speed with low density polyethylene (LDPE) and remaining residual components
In material machine, send in double roller open mill after being mixed 10 minutes with the speed stirring of 800 turns/part, 150 DEG C of temperature of control is entered
Row mixing, is then fed in double screw extruder, and 150 DEG C of temperature control carries out extruding pelletization and obtains final product.
CABLE MATERIALS of the present invention is applied to into the production of cable, after testing, the index for reaching is as follows for cable product：Tensile strength
20.1MPa, elongation at break 318%, oxygen index (OI) 29.8%, dielectric strength 32.7MV/m.
Claims (2)
1. a kind of modified fumed silica cooperates with the enhanced poly-ethylene cable material of polytetrafluoroethylene (PTFE) oil resistivity, it is characterised in that
It is prepared by the raw materials in：Low density polyethylene (LDPE) 100-105, appropriate absolute ethyl alcohol, nano magnesia 1.5-2, silane
Coupling agent KH5500.1-0.12, enzymolysis xylogen 20-22, concentration are the sodium hydroxide solution 400-420 of 2wt%, concentration is
The formalin 6-7 of 45wt%, melamine 15-16,0.1mol/L hydrochloric acid is appropriate, sodium pyrophosphate 4-5, microencapsulation are red
Phosphorus 5-6, appropriate deionized water, stearic acid octadecyl 2-3, fume colloidal silica 7-9, methyl vinyl silicone 2-3, poly- four
PVF powder 3-4, calcium hydroxide 3-4.
2. a kind of enhanced polyethylene of modified fumed silica collaboration polytetrafluoroethylene (PTFE) oil resistivity is electric according to claim 1
Cable material, it is characterised in that be made up of step in detail below：
（1）By nano magnesia ultrasonic disperse in the 4-5 times of absolute ethyl alcohol measured, it is centrifuged, is dried, will be dried nano oxidized
Magnesium is put in Muffle furnace, is warming up to 200-220 DEG C with the heating rate of 3-5 DEG C/min, is incubated 30-40 minutes, is taken out after cooling
It is stand-by；Silane coupling agent KH550 is dissolved in the 10-12 times of absolute ethyl alcohol measured, is then mixed with the nano magnesia after calcining,
It is centrifuged after ultrasonic disperse 30-40 minutes, filters, is dried, obtains modified Nano magnesia；
（2）The sodium hydroxide solution of enzymolysis xylogen and concentration for 2wt% is mixed, with 300-400 rev/min of speed stir to
Be completely dissolved, be heated to 90-95 DEG C, concentration is added for the formalin of 45wt%, continuation after stirring reaction 100-120 minute
Melamine is added, it is in being slowly added dropwise the hydrochloric acid of 0.1mol/L after continuing reaction 90-120 minutes and rear stand-by；By sodium pyrophosphate
It is dissolved in the 18-20 times of deionized water measured, is subsequently adding in above-mentioned reaction, continue stirring reaction 60-90 minute, precipitation is generated,
Stand, filter, deionized water is cleaned 2-3 time, being dried with 80-90 DEG C of temperature in being then placed in vacuum drying chamber, final powder
It is broken, 200 mesh sieves are crossed, modified enzymolysis lignin is obtained；
（3）To add in the 6-7 times of absolute ethyl alcohol measured in methyl vinyl silicone, stir to being completely dissolved, be subsequently adding gas
Phase method white carbon, centrifugation after ultrasonic disperse 30-40 minutes stand, then filter cake is put in baking oven the temperature drying with 80-90 DEG C
It is stand-by；Polytetrafluorethylepowder powder is put in high speed mixer, powder, calcium hydroxide after above-mentioned drying is subsequently adding, is heated to
170-180 DEG C, to discharge after the speed stirring 15-20 minutes of 800-1000 turn/part, obtain modified filler；
（4）By step（1）（2）（3）The product for obtaining is put into jointly mixed at a high speed with low density polyethylene (LDPE) and remaining residual components
In material machine, to send in double roller open mill after the speed stirring mixing 10-12 minutes of 800-1000 turn/part, control is warm
150-160 DEG C of degree is kneaded, and is then fed in double screw extruder, 150-170 DEG C of temperature control, is carried out extruding pelletization and obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610901998.1A CN106519376A (en) | 2016-10-18 | 2016-10-18 | Modified fumed silica and teflon cooperated oil resistance enhanced polyethylene cable material |
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|---|---|---|---|
| CN201610901998.1A CN106519376A (en) | 2016-10-18 | 2016-10-18 | Modified fumed silica and teflon cooperated oil resistance enhanced polyethylene cable material |
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| CN106519376A true CN106519376A (en) | 2017-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112552608A (en) * | 2020-11-18 | 2021-03-26 | 上海日之升科技有限公司 | Low-temperature impact-resistant stress whitening-resistant polypropylene material and preparation method thereof |
-
2016
- 2016-10-18 CN CN201610901998.1A patent/CN106519376A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112552608A (en) * | 2020-11-18 | 2021-03-26 | 上海日之升科技有限公司 | Low-temperature impact-resistant stress whitening-resistant polypropylene material and preparation method thereof |
| CN112552608B (en) * | 2020-11-18 | 2022-06-17 | 上海日之升科技有限公司 | Low-temperature impact-resistant stress whitening-resistant polypropylene material and preparation method thereof |
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