CN108503912A - Battery flame retardant plastic material shell and preparation method thereof - Google Patents

Battery flame retardant plastic material shell and preparation method thereof Download PDF

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Publication number
CN108503912A
CN108503912A CN201810447701.8A CN201810447701A CN108503912A CN 108503912 A CN108503912 A CN 108503912A CN 201810447701 A CN201810447701 A CN 201810447701A CN 108503912 A CN108503912 A CN 108503912A
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China
Prior art keywords
dosage
weight
parts
preparation
flame retardant
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CN201810447701.8A
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Chinese (zh)
Inventor
冯敏
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Wuhu Love Dream Network Technology Co Ltd
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Wuhu Love Dream Network Technology Co Ltd
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Priority to CN201810447701.8A priority Critical patent/CN108503912A/en
Publication of CN108503912A publication Critical patent/CN108503912A/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
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02—Copolymers with acrylonitrile
    • 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
    • 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
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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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)

Abstract

The invention discloses a kind of battery flame retardant plastic material shell and preparation method thereof, the preparation method includes：Modified coating is mixed with montmorillonite, then dried, be placed in sulfuric acid solution and impregnated, filtered to obtain modified montmorillonoid；Modified montmorillonoid, nitrile rubber, methyl vinyl silicone rubber, Kynoar, acrylic resin, organic silicon fibre retardant, filler, lubricant and plasticizer are mixed, mixture M is obtained；Mixture M is added twin-screw extrude, flame retardant plastics is obtained after extruded, molding；Solve the problems, such as that existing flame retardant plastics is difficult to ensure superior mechanical property and flame retardant property simultaneously.

Description

Battery flame retardant plastic material shell and preparation method thereof
Technical field
The present invention relates to battery manufacturing fields, and in particular, to a kind of battery flame retardant plastic material shell and preparation method thereof.
Background technology
With the continuous development of science and technology, the development of new energy battery is getting faster, the product of new energy battery on the market It is more and more, therefore develop new energy battery with regard to particularly significant.The battery of new energy is often one battery of multiple battery compositions Group, temperature is higher after battery pack works long hours, it is desirable to battery-pack exterior casing have excellent mechanical performance, high temperature resistance and Flame retardant property avoids battery case high temperature deformation, while reducing the risk of battery spontaneous combustion.
Invention content
The object of the present invention is to provide a kind of battery flame retardant plastic material shells and preparation method thereof, solve existing battery case It is difficult to the problem of ensureing superior mechanical performance and flame retardant property simultaneously.
To achieve the goals above, the present invention provides a kind of preparation method of battery flame retardant plastic material shell, the preparation sides Method includes：
(1) modified coating is mixed with montmorillonite, then dries, is placed in sulfuric acid solution and is impregnated, filtered to obtain Modified montmorillonoid；Wherein, modified coating is mixed to get by dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate；
(2) by modified montmorillonoid, nitrile rubber, methyl vinyl silicone rubber, Kynoar, acrylic resin, organic Silicon fire retardant, filler, lubricant and plasticizer mixing, obtain mixture M；
(3) mixture M is added twin-screw extrude, battery flame retardant plastic material shell is obtained after extruded, molding；Wherein, The condition of extrusion includes：The rotating speed of screw rod is 200-300 revs/min, and the temperature of feeding section is 200-210 DEG C, fusion plastification section Temperature be 240-250 DEG C, the temperature for mixing homogenizing zone is 210-220 DEG C, and the temperature of melt conveying metering section is 180-200 ℃。
The present invention also provides a kind of battery flame retardant plastic material shell, the battery flame retardant plastic material shell is by above-mentioned preparation method system .
Through the above technical solutions, the present invention provides a kind of battery flame retardant plastic material shell and preparation method thereof, the preparation Method includes：Modified coating is mixed with montmorillonite, then dried, be placed in sulfuric acid solution and impregnated, filtered to be changed Property montmorillonite；Wherein, modified coating is mixed to get by dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate；It will be modified Montmorillonite, nitrile rubber, methyl vinyl silicone rubber, Kynoar, acrylic resin, organic silicon fibre retardant, filler, profit Lubrication prescription and plasticizer mixing, obtain mixture M；Mixture M is added twin-screw extrude, electricity is obtained after extruded, molding Pond flame retardant plastic material shell；Pass through the synergistic effect between each raw material so that battery case obtained is provided simultaneously with excellent mechanicalness Can and flame retardant property, meanwhile, the method that is used to prepare the battery case is simple, raw material is easy to get.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below.It should be understood that described herein specific Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of preparation method of battery flame retardant plastic material shell, the preparation method includes：
(1) modified coating is mixed with montmorillonite, then dries, is placed in sulfuric acid solution and is impregnated, filtered to obtain Modified montmorillonoid；Wherein, modified coating is mixed to get by dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate；
(2) by modified montmorillonoid, nitrile rubber, methyl vinyl silicone rubber, Kynoar, acrylic resin, organic Silicon fire retardant, filler, lubricant and plasticizer mixing, obtain mixture M；
(3) mixture M is added twin-screw extrude, battery flame retardant plastic material shell is obtained after extruded, molding；Wherein, The condition of extrusion includes：The rotating speed of screw rod is 200-300 revs/min, and the temperature of feeding section is 200-210 DEG C, fusion plastification section Temperature be 240-250 DEG C, the temperature for mixing homogenizing zone is 210-220 DEG C, and the temperature of melt conveying metering section is 180-200 ℃。
In a kind of preferred embodiment of the present invention, in order to further increase mechanical property and the resistance of plastics obtained Performance is fired, relative to the nitrile rubber of 100 parts by weight, the dosage of modified montmorillonoid is 2-8 parts by weight, methyl vinyl silicone rubber Dosage be 20-30 parts by weight, the dosage of Kynoar is 25-45 parts by weight, and the dosage of acrylic resin is 40-80 weight Part, the dosage of organic silicon fibre retardant is 2-10 parts by weight, and the dosage of filler is 2-7 parts by weight, and the dosage of lubricant is 2-7 weights Part is measured, the dosage of plasticizer is 2-8 parts by weight.
In a kind of preferred embodiment of the present invention, in order to further increase mechanical property and the resistance of plastics obtained Performance is fired, relative to the nitrile rubber of 100 parts by weight, the dosage of modified montmorillonoid is 4-6 parts by weight, methyl vinyl silicone rubber Dosage be 24-26 parts by weight, the dosage of Kynoar is 30-40 parts by weight, and the dosage of acrylic resin is 50-70 weight Part, the dosage of organic silicon fibre retardant is 4-6 parts by weight, and the dosage of filler is 4-5 parts by weight, and the dosage of lubricant is 4-5 weights Part is measured, the dosage of plasticizer is 4-6 parts by weight.
In a kind of preferred embodiment of the present invention, in order to further increase mechanical property and the resistance of plastics obtained Performance is fired, in step (1), dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate are 1 according to mass ratio:10:10- 20 ratio is mixed.
In a kind of preferred embodiment of the present invention, in order to further increase mechanical property and the resistance of plastics obtained Performance is fired, the mass concentration of sulfuric acid solution is 40-60%.
In a kind of preferred embodiment of the present invention, in order to further increase mechanical property and the resistance of plastics obtained Performance is fired, filler is one or more in calcium carbonate, clay, silicate and talcum powder.
In a kind of preferred embodiment of the present invention, in order to further increase mechanical property and the resistance of plastics obtained Performance is fired, lubricant is one or more in stearic acid, stearate, polystyrene wax, paraffin and oleamide.
In a kind of preferred embodiment of the present invention, in order to further increase mechanical property and the resistance of plastics obtained Performance is fired, plasticizer is selected from phthalate compound, terephthalic acid ester compound and trimellitic acid esters chemical combination It is one or more in object.
In a kind of preferred embodiment of the present invention, in order to further increase mechanical property and the resistance of plastics obtained Performance is fired, the weight average molecular weight of Kynoar is 9000-12000, and the weight average molecular weight of polyvinyl alcohol is 6000-8000.
The present invention also provides a kind of battery flame retardant plastic material shell, the battery flame retardant plastic material shell is by above-mentioned preparation method system .
The present invention will be described in detail by way of examples below.In following embodiment, Kynoar is divided equally again Son amount is 9000-12000, and the weight average molecular weight of polyvinyl alcohol is 6000-8000；Organic silicon fibre retardant is had by the wide guest's trade in Shanghai The trade mark that limit company provides is the commercially available product of KR-2710.
Embodiment 1
Modified coating is mixed with montmorillonite, then dried, be placed in sulfuric acid solution (mass concentration 40%) and soaked Bubble is filtered to obtain modified montmorillonoid；Wherein, modified coating is by dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate Be mixed to get (dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate according to mass ratio be 1:10:10 ratio is mixed It closes)；By 4g modified montmorillonoids, 100g nitrile rubbers, 24g methyl vinyl silicone rubbers, 30g Kynoar, 50g acrylic acid trees Fat, 4g organic silicon fibre retardants, 4g calcium carbonate, 4g stearic acid and the mixing of 4g phthalate compounds, obtain mixture M； Mixture M is added twin-screw extrude, extruded, molding (is molded by the way of hot-forming, and the temperature of hot pressing is 40 DEG C, the pressure of hot pressing is 30MPa) after obtain battery flame retardant plastic material shell A1；Wherein, the condition of extrusion includes：The rotating speed of screw rod It it is 200 revs/min, the temperature of feeding section is 200 DEG C, and the temperature of fusion plastification section is 240 DEG C, and the temperature for mixing homogenizing zone is 210 DEG C, the temperature of melt conveying metering section is 180 DEG C.
Embodiment 2
Modified coating is mixed with montmorillonite, then dried, be placed in sulfuric acid solution (mass concentration 60%) and soaked Bubble is filtered to obtain modified montmorillonoid；Wherein, modified coating is by dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate Be mixed to get (dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate according to mass ratio be 1:10:20 ratio is mixed It closes)；By 6g modified montmorillonoids, 100g nitrile rubbers, 26g methyl vinyl silicone rubbers, 40g Kynoar, 70g acrylic acid trees Fat, 6g organic silicon fibre retardants, 5g silicates (sodium metasilicate), 5g polystyrene wax and the mixing of 6g terephthalic acid ester compounds, Obtain mixture M；Mixture M is added twin-screw extrude, extruded, molding (it is molded by the way of hot-forming, and The temperature of hot pressing is 40 DEG C, and the pressure of hot pressing is 30MPa) after obtain battery flame retardant plastic material shell A2；Wherein, the condition packet of extrusion It includes：The rotating speed of screw rod is 300 revs/min, and the temperature of feeding section is 210 DEG C, and the temperature of fusion plastification section is 250 DEG C, and mixing is equal The temperature for changing section is 220 DEG C, and the temperature of melt conveying metering section is 200 DEG C.
Embodiment 3
Modified coating is mixed with montmorillonite, then dried, be placed in sulfuric acid solution (mass concentration 50%) and soaked Bubble is filtered to obtain modified montmorillonoid；Wherein, modified coating is by dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate Be mixed to get (dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate according to mass ratio be 1:10:15 ratio is mixed It closes)；By 5g modified montmorillonoids, 100g nitrile rubbers, 25g methyl vinyl silicone rubbers, 35g Kynoar, 60g acrylic acid trees Fat, 5g organic silicon fibre retardants, 4.5g talcum powder, 4.5g oleamides and the mixing of 5g trimellitic acid esters compounds, are mixed Object M；Mixture M is added twin-screw extrude, extruded, molding (is molded by the way of hot-forming, and the temperature of hot pressing Degree is 40 DEG C, and the pressure of hot pressing is 30MPa) after obtain battery flame retardant plastic material shell A3；Wherein, the condition of extrusion includes：Screw rod Rotating speed is 250 revs/min, and the temperature of feeding section is 205 DEG C, and the temperature of fusion plastification section is 245 DEG C, mixes the temperature of homogenizing zone It it is 215 DEG C, the temperature of melt conveying metering section is 190 DEG C.
Embodiment 4
It is prepared according to the method for embodiment 3, unlike, relative to the nitrile rubber of 100g, modified montmorillonoid Dosage is 2g, and the dosage of methyl vinyl silicone rubber is 20g, and the dosage of Kynoar is 25g, and the dosage of acrylic resin is The dosage of 40g, organic silicon fibre retardant are 2g, and the dosage of filler is 2g, and the dosage of lubricant is 2g, and the dosage of plasticizer is 2g obtains battery flame retardant plastic material shell A4.
Embodiment 5
It is prepared according to the method for embodiment 3, unlike, relative to the nitrile rubber of 100g, modified montmorillonoid Dosage is 8g, and the dosage of methyl vinyl silicone rubber is 30g, and the dosage of Kynoar is 45g, and the dosage of acrylic resin is The dosage of 80g, organic silicon fibre retardant are 10g, and the dosage of filler is 7g, and the dosage of lubricant is 7g, and the dosage of plasticizer is 8g obtains battery flame retardant plastic material shell A5.
Embodiment 6
It is prepared according to the method for embodiment 3, unlike, relative to the nitrile rubber of 100g, modified montmorillonoid Dosage is 1g, and the dosage of methyl vinyl silicone rubber is 15g, and the dosage of Kynoar is 20g, and the dosage of acrylic resin is The dosage of 35g, organic silicon fibre retardant are 1g, and the dosage of filler is 1g, and the dosage of lubricant is 1g, and the dosage of plasticizer is 1g obtains battery flame retardant plastic material shell A6.
Embodiment 7
It is prepared according to the method for embodiment 3, unlike, relative to the nitrile rubber of 100g, modified montmorillonoid Dosage is 10g, and the dosage of methyl vinyl silicone rubber is 35g, and the dosage of Kynoar is 50g, the dosage of acrylic resin Dosage for 85g, organic silicon fibre retardant is 15g, and the dosage of filler is 10g, and the dosage of lubricant is 10g, the use of plasticizer Amount is 10g, obtains battery flame retardant plastic material shell A7.
Comparative example 1
It is prepared according to the method for embodiment 3, unlike, the condition of expressing technique includes：The rotating speed of screw rod is 150 Rev/min, the temperature of feeding section is 180 DEG C, and the temperature of fusion plastification section is 220 DEG C, and the temperature for mixing homogenizing zone is 180 DEG C, The temperature of melt conveying metering section is 150 DEG C, obtains battery flame retardant plastic material shell D1.
Comparative example 2
It is prepared according to the method for embodiment 3, unlike, the condition of expressing technique includes：The rotating speed of screw rod is 350 Rev/min, the temperature of feeding section is 240 DEG C, and the temperature of fusion plastification section is 260 DEG C, and the temperature for mixing homogenizing zone is 240 DEG C, The temperature of melt conveying metering section is 220 DEG C, obtains battery flame retardant plastic material shell D2.
Comparative example 3
It is prepared according to the method for embodiment 3, unlike, do not include methyl vinyl silicone rubber in raw material, obtains Battery flame retardant plastic material shell D3.
Comparative example 4
It is prepared according to the method for embodiment 3, unlike, do not include Kynoar in raw material, obtains battery resistance Fire plastic housing D4.
Comparative example 5
It is prepared according to the method for embodiment 3, unlike, do not include acrylic resin in raw material, obtains battery resistance Fire plastic housing D5.
Test case
Tensile strength parameter is measured by the method for GB1040-2006, and elongation at break parameter is to pass through GB1040- 2006 method measures, and flame retardant property passes through GB/T2406.2-2009《Plastics measure burning behavior with oxygen index method》Method It measures.
Table 1
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above Detail can carry out a variety of simple variants to technical scheme of the present invention within the scope of the technical concept of the present invention, this A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should also be regarded as the disclosure of the present invention.

Claims (10)

1. a kind of preparation method of battery flame retardant plastic material shell, which is characterized in that the preparation method includes：
(1) modified coating is mixed with montmorillonite, then dries, is placed in sulfuric acid solution and is impregnated, filtered to be modified Montmorillonite；Wherein, modified coating is mixed to get by dodecyl sodium sulfate, polyvinyl alcohol and lauryl sulfate；
(2) modified montmorillonoid, nitrile rubber, methyl vinyl silicone rubber, Kynoar, acrylic resin, organosilicon are hindered Agent, filler, lubricant and plasticizer mixing are fired, mixture M is obtained；
(3) mixture M is added twin-screw extrude, battery flame retardant plastic material shell is obtained after extruded, molding；Wherein, it squeezes out Condition include：The rotating speed of screw rod is 200-300 revs/min, and the temperature of feeding section is 200-210 DEG C, the temperature of fusion plastification section Degree is 240-250 DEG C, and the temperature for mixing homogenizing zone is 210-220 DEG C, and the temperature of melt conveying metering section is 180-200 DEG C.
2. preparation method according to claim 1, wherein relative to the nitrile rubber of 100 parts by weight, modified montmorillonoid Dosage is 2-8 parts by weight, and the dosage of methyl vinyl silicone rubber is 20-30 parts by weight, and the dosage of Kynoar is 25-45 weights Part is measured, the dosage of acrylic resin is 40-80 parts by weight, and the dosage of organic silicon fibre retardant is 2-10 parts by weight, the use of filler Amount is 2-7 parts by weight, and the dosage of lubricant is 2-7 parts by weight, and the dosage of plasticizer is 2-8 parts by weight.
3. preparation method according to claim 2, wherein relative to the nitrile rubber of 100 parts by weight, modified montmorillonoid Dosage is 4-6 parts by weight, and the dosage of methyl vinyl silicone rubber is 24-26 parts by weight, and the dosage of Kynoar is 30-40 weights Part is measured, the dosage of acrylic resin is 50-70 parts by weight, and the dosage of organic silicon fibre retardant is 4-6 parts by weight, the dosage of filler Dosage for 4-5 parts by weight, lubricant is 4-5 parts by weight, and the dosage of plasticizer is 4-6 parts by weight.
4. preparation method according to claim 2 or 3, wherein in step (1), dodecyl sodium sulfate, polyvinyl alcohol With lauryl sulfate according to mass ratio be 1:10:The ratio of 10-20 is mixed.
5. preparation method according to claim 4, wherein the mass concentration of sulfuric acid solution is 40-60%.
6. preparation method according to claim 2 or 3, wherein filler is selected from calcium carbonate, clay, silicate and talcum It is one or more in powder.
7. preparation method according to claim 2 or 3, wherein lubricant is selected from stearic acid, stearate, polystyrene It is one or more in wax, paraffin and oleamide.
8. preparation method according to claim 2 or 3, wherein plasticizer is selected from phthalate compound, to benzene It is one or more in diformic ester compound and trimellitic acid esters compound.
9. preparation method according to claim 2 or 3, wherein the weight average molecular weight of Kynoar is 9000-12000, The weight average molecular weight of polyvinyl alcohol is 6000-8000.
10. a kind of battery flame retardant plastic material shell, which is characterized in that the battery flame retardant plastic material shell is by any one in claim 1-9 Preparation method described in is made.
CN201810447701.8A 2018-05-11 2018-05-11 Battery flame retardant plastic material shell and preparation method thereof Withdrawn CN108503912A (en)

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CN201810447701.8A CN108503912A (en) 2018-05-11 2018-05-11 Battery flame retardant plastic material shell and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810447701.8A CN108503912A (en) 2018-05-11 2018-05-11 Battery flame retardant plastic material shell and preparation method thereof

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CN108503912A true CN108503912A (en) 2018-09-07

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CN201810447701.8A Withdrawn CN108503912A (en) 2018-05-11 2018-05-11 Battery flame retardant plastic material shell and preparation method thereof

Country Status (1)

Country Link
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