CN106554554A - Anti-static polyethylene fuel tank composition and preparation method thereof - Google Patents

Anti-static polyethylene fuel tank composition and preparation method thereof Download PDF

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Publication number
CN106554554A
CN106554554A CN201510634418.2A CN201510634418A CN106554554A CN 106554554 A CN106554554 A CN 106554554A CN 201510634418 A CN201510634418 A CN 201510634418A CN 106554554 A CN106554554 A CN 106554554A
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polyethylene
fuel tank
carbon black
resin
undecyl
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Inventor
徐素兰
唐岩
张超
刘少成
张广明
王秀丽
裴晓静
胡军
霍明
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China Petroleum and Chemical Corp
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China Petroleum and Chemical Corp
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Priority to CN201510634418.2A priority Critical patent/CN106554554A/en
Publication of CN106554554A publication Critical patent/CN106554554A/en
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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
    • 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
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • 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
    • C08K2201/001—Conductive additives
    • 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
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • 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
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2314/00—Polymer mixtures characterised by way of preparation
    • C08L2314/06—Metallocene or single site catalysts

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The present invention relates to a kind of anti-static polyethylene fuel tank composition and preparation method thereof, is made up of the component of following weight portion：1 resin 40-60 parts of polyethylene, 2 resin 40-60 parts of polyethylene, phthalic acid two (undecyl) ester 6.0-10.0 parts, potter's clay 0.5-3 parts, carbon black 5-10 parts.The a small amount of carbon black of present invention addition, material had both had electric conductivity, while keeping the mechanical property of material, said composition to have excellent mechanical property, processing characteristics and electric conductivity well, the polyethylene composition is processed suitable for hollow blow molding.

Description

Anti-static polyethylene fuel tank composition and preparation method thereof
Technical field
The present invention relates to a kind of polyethylene composition of fuel tank, and in particular to a kind of anti-static polyethylene fuel tank composition and its system Preparation Method.
Background technology
Fuel tank generally has two kinds of metal fuel tank and plastic fuel tank.Manufacture metal fuel tank needs cutting, punching press, welding, spray Operation and the plastic fuel tanks such as paint include that annex can be using one-shot forming, with simple process, efficiency high, with short production cycle Advantage, and cost can reduce by 1/3.Plastic fuel tank wants substituted metal fuel tank, needs the performance with metal fuel tank, such as： Impact resistance, not easy to leak, fire-retardant, antistatic etc..
One of material of production plastic fuel tank is high density polyethylene (HDPE).For producing the HDPE of fuel tank, it is general require with compared with High molecular weight, to ensure the preferable rigidity of product and creep resistance, while should also have impact resistance, corrosion-resistant, resistance to environment should Premium properties and the preferable processing characteristics such as power cracking, obstruct, antistatic.HDPE is high resistivity insulating materials, often Accumulation of static electricity is easily produced during its processing and use, the bad phenomenons such as electrostatic precipitation or even static discharge are caused.Fuel tank Interior splendid attire inflammable oil, static discharge easily cause burning even to explode.Therefore, produce the HDPE resin of fuel tank, it is necessary to have There is good antistatic property.
Prior art needs the carbon black for adding about 14% in HDPE, the electric conductivity of material just meet the requirements, i.e. surface electricity Resistance rate is less than 108Ω.But after the carbon black of addition about 14%, the mechanical property of material and melt mass flow rate decline too greatly, So that hollow blow molding field cannot be applied to.
In resin, add antistatic additive to be conventional means.Even if but dose and reach 30%, also only make the sheet resistance of HDPE Rate by pure material 1014Ω is reduced to 1010Ω.For some require harsh field to antistatic property, then need to add conductive carbon The black requirement that could meet electrical property.The amount material conductivity for increasing carbon black is good, but the addition of a large amount of carbon blacks, material can be reduced The mechanical property and processing characteristics of material.
The content of the invention
It is an object of the invention to provide a kind of anti-static polyethylene fuel tank composition and preparation method thereof, adds a small amount of carbon black, material Material had both had electric conductivity, while keeping the mechanical property of material well.Said composition has excellent mechanical property, processability Energy and electric conductivity, the polyethylene composition are processed suitable for hollow blow molding.
A kind of anti-static polyethylene fuel tank composition of the present invention, is made up of the component of following weight portion：
1 resin 40-60 parts of polyethylene, 2 resin 40-60 parts of polyethylene, phthalic acid two (undecyl) ester 6.0-10.0 Part, potter's clay 0.5-3 parts, carbon black 5-10 parts.
At 190 DEG C, under the conditions of 21.6Kg counterweights, the melt mass flow rate of 1 resin of polyethylene is 3.0-14.0g/10min.
The melt mass flow rate of 1 resin of polyethylene is 4.0-8.0g/10min.
The density of 1 resin of polyethylene is 0.940-0.955g/cm3。
The density of 1 resin of polyethylene is preferably 0.945-0.950g/cm3。
The comonomer of 1 resin of polyethylene is 1- hexenes, and molar comonomer percentage composition is 0.4-0.6%.
At 190 DEG C, under the conditions of 21.6Kg counterweights, 2 resins of polyethylene-melt mass flow rate is 4.0-6.0g/10min；b. Density is 0.930-0.940g/cm3。
Catalyst used by production polyethylene 2 is metallocene catalyst.
Described potter's clay particle diameter is 1000-3000 mesh.
It is 250-420ml/100g that the feature of described carbon black is a.DBP absorption values, and b. particle diameters are 10-100nm；Preferred carbon black Feature be a.DBP absorption values be 380-420ml/100g, b. particle diameters be 20-50nm.
The preparation method of anti-static polyethylene fuel tank composition, step are as follows：
(1) will be dried in 40-80 DEG C of vacuum drying oven after the blending of carbon black, two (undecyl) ester of phthalic acid and acetone 6-10 hours；
(2) by the raw material obtained in step (1) and 1 melt blending of polyethylene；
(3) by obtained raw materials melt, granulation in step (2)；
(4) potter's clay is added in polyethylene 2, mix 2-5 minutes in homogenizer, then melting, granulation；
(5) step (3) is mixed with the raw material obtained in step (4), that is, polyethylene composition is obtained.
Polyethylene 1, polyethylene 2, phthalic acid two (undecyl) ester, potter's clay, carbon black are obtained one by the present invention The polyethylene composition of high-rigidity high-ductility is planted, and said composition has excellent electric conductivity.
Comonomer is 1- hexenes, and molar comonomer percentage composition is 0.4-0.6%, and the NMRC13 of employing tested.
The concrete preparation method of anti-static polyethylene fuel tank composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.6-10 hours are dried in 40-80 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 2-5 minutes minute, then in double screw extruder in homogenizer Middle melting, granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, product is obtained.
Acetone described in preparation method of the present invention can be coupling agent, and alcohol etc. plays the organic matter of diluting effect.
Just the present composition and its consumption, make the normal temperature of material, low temperature notched impact strength, bending modulus reach balance, i.e., Tough balance.In composition, carbon black, phthalic acid two (undecyl) ester, potter's clay contribute to the electric conductivity of material.
Compared with prior art, the invention has the advantages that：
Anti-static polyethylene fuel tank composition of the present invention and preparation method thereof, adds a small amount of carbon black, and material had both had electric conductivity, Keep the mechanical property of material, said composition that there is excellent mechanical property, processing characteristics and electric conductivity simultaneously well, should Polyethylene composition is processed suitable for hollow blow molding.
Specific embodiment
The present invention is further invented with reference to embodiment.
Embodiment 1
Polyethylene 1 resin (MFR=4.0g/10mim, density 0.950g/cm3)
Polyethylene 2 resin (MFR=4.7g/10mim, density 0.931g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (1000 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 8 hours in 60 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 3 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 2
Polyethylene 1 resin (MFR=5.0g/10mim, density 0.945g/cm3)
Polyethylene 2 resin (MFR=5.0g/10mim, density 0.936g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (1500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 10 hours in 40 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 5 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 3
Polyethylene 1 resin (MFR=7.0g/10mim, density 0.945g/cm3)
Polyethylene 2 resin (MFR=4.0g/10mim, density 0.933g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2000 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 6 hours in 80 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 2 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 4
Polyethylene 1 resin (MFR=3.0g/10mim, density 0.947g/cm3)
Polyethylene 2 resin (MFR=5.5g/10mim, density 0.940g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (1500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 8 hours in 60 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 3 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 5
Polyethylene 1 resin (MFR=11.0g/10mim, density 0.947g/cm3)
Polyethylene 2 resin (MFR=5.5g/10mim, density 0.936g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 10 hours in 40 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 5 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 6
Polyethylene 1 resin (MFR=8.0g/10mim, density 0.950g/cm3)
Polyethylene 2 resin (MFR=5.0g/10mim, density 0.940g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2000 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 8 hours in 60 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 3 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 7
Polyethylene 1 resin (MFR=6.0g/10mim, density 0.950g/cm3)
Polyethylene 2 resin (MFR=6.0g/10mim, density 0.933g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 6 hours in 80 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 2 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 8
Polyethylene 1 resin (MFR=8.0g/10mim, density 0.950g/cm3)
Polyethylene 2 resin (MFR=4.3g/10mim, density 0.932g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (3000 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 6 hours in 80 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 2 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 9
Polyethylene 1 resin (MFR=3.0g/10mim, density 0.947g/cm3)
Polyethylene 2 resin (MFR=5.5g/10mim, density 0.933g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 8 hours in 60 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 3 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 10
Polyethylene 1 resin (MFR=5.0g/10mim, density 0.945g/cm3)
Polyethylene 2 resin (MFR=5.0g/10mim, density 0.932g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (1500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 10 hours in 40 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 5 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 11
Polyethylene 1 resin (MFR=11.0g/10mim, density 0.947g/cm3)
Polyethylene 2 resin (MFR=5.5g/10mim, density 0.933g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 6 hours in 80 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 2 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Embodiment 12
Polyethylene 1 resin (MFR=8.0g/10mim, density 0.950g/cm3)
Polyethylene 2 resin (MFR=5.3g/10mim, density 0.937g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2000 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The concrete preparation method of fuel tank polyethylene composition of the present invention is as follows：
(1) carbon black, two (undecyl) ester of phthalic acid and acetone are blended, acetone plays dilution, increase carbon black Dispersion in phthalic acid two (undecyl) ester.It is dried 8 hours in 60 DEG C of vacuum drying oven.
(2) by the raw material obtained in step (1) and the melt blending in banbury of polyethylene 1.
(3) obtained raw material in step (2) is added into melting in double screw extruder, granulation.
(4) potter's clay is added in polyethylene 2, mix 3 minutes in homogenizer, then melt in double screw extruder, Granulation.
(5) step (3) is mixed with the raw material obtained in step (4), that is, the polyethylene composition of the present invention is obtained.
Comparative example 1
Polyethylene 1 resin (MFR=5.0g/10mim, density 0.945g/cm3)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
Comparative example 2
Polyethylene 2 resin (MFR=5.3g/10mim, density 0.936g/cm3)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
Comparative example 3
Polyethylene 1 resin (MFR=11.0g/10mim, density 0.947g/cm3)
Polyethylene 2 resin (MFR=5.5g/10mim, density 0.933g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
Comparative example 4
Polyethylene 1 resin (MFR=3.0g/10mim, density 0.947g/cm3)
Polyethylene 2 resin (MFR=4.5g/10mim, density 0.933g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (1500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
Comparative example 5
Polyethylene 1 resin (MFR=8.0g/10mim, density 0.950g/cm3)
Polyethylene 2 resin (MFR=5.3g/10mim, density 0.938g/cm3)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
Comparative example 6
Polyethylene 1 resin (MFR=5.0g/10mim, density 0.945g/cm3)
Polyethylene 2 resin (MFR=5.0g/10mim, density 0.940g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (1500 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
Comparative example 7
Polyethylene 1 resin (MFR=8.0g/10mim, density 0.947g/cm3)
Polyethylene 2 resin (MFR=5.0g/10mim, density 0.940g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (2000 mesh).
Comparative example 8
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters)
Polyethylene 1 resin (MFR=8.0g/10mim, density 0.950g/cm3)
Polyethylene 2 resin (MFR=4.3g/10mim, density 0.932g/cm3)
Phthalic acid two (undecyl) ester
Potter's clay (3000 mesh)
Carbon black (it is 33nm that DBP absorption values are 400ml/100g particle diameters).
The raw material composition of embodiment 1-4 and its performance characterization are as shown in table 1.
The raw material composition of embodiment 5-8 and its performance characterization are as shown in table 2.
The raw material composition of embodiment 9-12 and its performance characterization are as shown in table 3.
The raw material composition of comparative example 1-4 and its performance characterization are as shown in table 4.
The raw material composition of comparative example 5-8 and its performance characterization are as shown in table 5.
The raw material composition of 1 embodiment 1-4 of table and its performance characterization
The raw material composition of the 5-8 of 2 embodiment of table and its performance characterization
The raw material composition of 3 embodiment 9-12 of table and its performance characterization
The raw material composition of 4 comparative example 1-4 of table and its performance characterization
The raw material composition of 5 comparative example 5-8 of table and its performance characterization
The present invention has also done single argument contrast test to the addition of phthalic acid two (undecyl) ester, and discovery is not added with adjacent benzene Dioctyl phthalate two (undecyl) ester, the melt mass flow rate of material are little for 1-3g/10min, are not easy to blow molding hollow Container, with the increase of phthalic acid two (undecyl) ester addition, the melt mass flow rate of material increases, when , between 6-10, melt mass flow rate (21.6Kg) is in 4-6 for the parts by weight of phthalic acid two (undecyl) ester Between g/10min.
After dosing potter's clay, when potter's clay and two (undecyl) ester of phthalic acid are added simultaneously, than potter's clay is used alone to leading Electrical improvement is obvious.
The present invention has also done single argument contrast test to the addition of carbon black, it is found that when carbon black doses number between 5-10, with The increase of carbon black content, the surface resistivity of material decline, and when carbon black content is more than 10 parts, the surface resistivity of material are improved It is unobvious.

Claims (10)

1. a kind of anti-static polyethylene fuel tank composition, it is characterised in that be made up of the component of following weight portion：
1 resin 40-60 parts of polyethylene, 2 resin 40-60 parts of polyethylene, phthalic acid two (undecyl) ester 6.0-10.0 Part, potter's clay 0.5-3 parts, carbon black 5-10 parts.
2. anti-static polyethylene fuel tank composition according to claim 1, it is characterised in that at 190 DEG C, 21.6Kg Under the conditions of counterweight, the melt mass flow rate of 1 resin of polyethylene is 3.0-14.0g/10min, and density is 0.940-0.955g/cm3。
3. anti-static polyethylene fuel tank composition according to claim 2, it is characterised in that 1 resin of polyethylene Melt mass flow rate is 4.0-8.0g/10min, and density is 0.945-0.950g/cm3。
4. anti-static polyethylene fuel tank composition according to claim 1, it is characterised in that 1 resin of polyethylene Comonomer is 1- hexenes, and molar comonomer percentage composition is 0.4-0.6%.
5. anti-static polyethylene fuel tank composition according to claim 1, it is characterised in that at 190 DEG C, 21.6Kg Under the conditions of counterweight, 2 resins of polyethylene-melt mass flow rate is 4.0-6.0g/10min；Density is 0.930-0.940g/cm3。
6. anti-static polyethylene fuel tank composition according to claim 1, it is characterised in that 2 institute of production polyethylene Catalyst is metallocene catalyst.
7. anti-static polyethylene fuel tank composition according to claim 1, it is characterised in that described potter's clay particle diameter For 1000-3000 mesh.
8. anti-static polyethylene fuel tank composition according to claim 1, it is characterised in that the spy of described carbon black It is 250-420ml/100g to levy as DBP absorption values, and particle diameter is 10-100nm.
9. anti-static polyethylene fuel tank composition according to claim 8, it is characterised in that the spy of described carbon black It is 380-420ml/100g to levy as DBP absorption values, and particle diameter is 20-50nm.
10. a kind of preparation method of the anti-static polyethylene fuel tank composition described in claim 1, it is characterised in that step It is as follows：
(1) will be dried in 40-80 DEG C of vacuum drying oven after the blending of carbon black, two (undecyl) ester of phthalic acid and acetone 6-10 hours；
(2) by the raw material obtained in step (1) and 1 melt blending of polyethylene；
(3) by obtained raw materials melt, granulation in step (2)；
(4) potter's clay is added in polyethylene 2, mix 2-5 minutes in homogenizer, then melting, granulation；
(5) step (3) is mixed with the raw material obtained in step (4), that is, product is obtained.
CN201510634418.2A 2015-09-30 2015-09-30 Anti-static polyethylene fuel tank composition and preparation method thereof Pending CN106554554A (en)

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