CN108822474A - A kind of fire-retardant lithium battery end cap and preparation method thereof - Google Patents
A kind of fire-retardant lithium battery end cap and preparation method thereof Download PDFInfo
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- CN108822474A CN108822474A CN201810221078.4A CN201810221078A CN108822474A CN 108822474 A CN108822474 A CN 108822474A CN 201810221078 A CN201810221078 A CN 201810221078A CN 108822474 A CN108822474 A CN 108822474A
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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
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K2003/026—Phosphorus
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- C—CHEMISTRY; METALLURGY
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- 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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Abstract
The present invention relates to lithium battery packing technique fields, more particularly to a kind of fire-retardant lithium battery end cap and preparation method thereof, lithium battery end cap is molded by ABS/PC blending resin, the ABS/PC blending resin includes ABS, PC, fire-retardant microballoon, antioxidant and lubricant, and the fire-retardant microballoon is made of nanometer red phosphorus, nano-sized magnesium hydroxide and microcrystalline cellulose.Fire retardant mechanism of the invention is; red phosphorus degrades in high temperature and forms acid source with water; so that the microcrystalline cellulose of polyhydroxy is dehydrated carbonization formation protection layer of charcoal and completely cuts off fire-retardant effect to play; and magnesium hydroxide can then play the fire-retardant effect of synergistic; it absorbs a large amount of latent heat and discharges the generation for promoting phosphoric acid in conjunction with water, three complements each other.In addition, microcrystalline cellulose and nano-sized magnesium hydroxide can be used as enhancing material, the mechanical property of lithium battery end cap is greatly improved.
Description
Technical field
The present invention relates to lithium battery packing technique fields, and in particular to a kind of fire-retardant lithium battery end cap and preparation method thereof.
Background technique
As China's economic development and process of industrialization are accelerated, a series of environmental problem emerges in succession, the energy
Therefore the important contradiction that crisis and environmental pollution also have become the development of restriction China is readjusted the energy structure, energy storage technology wound is pushed
Newly have become state key development strategy.Lithium ion battery is one of most important technology of energy storage field, photovoltaic power generation with
And electric car field is widely used.
Improve lithium battery packaging safety, can by improve battery packaging material mechanical property and flame retardant property come
It realizes.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of mechanical property and
The good lithium battery end cap and preparation method thereof of flame retardant property.
The purpose of the invention is achieved by the following technical solution：
A kind of fire-retardant lithium battery end cap, is molded by ABS/PC blending resin, and the ABS/PC blending resin includes such as
The raw material of lower parts by weight：
The fire-retardant microballoon is the microballoon of core-shell structure, and core is nano-meter flame retardants, and shell is microcrystalline cellulose, described to receive
Rice fire retardant is the mixture that nanometer red phosphorus and nano-sized magnesium hydroxide form.
One of the important component that lithium battery end cap is packed as lithium battery, mechanical property, flame retardant property and processing performance
It is all that needs are improved.The mixture of nanometer red phosphorus and nano-sized magnesium hydroxide composition of the present invention utilizes micro- as fire retardant
Crystalline cellulose carries out cladding processing to it, can to avoid nano-meter flame retardants itself agglomeration and improve nano-meter flame retardants with
The compatibility of polymer.Fire retardant mechanism of the invention is that red phosphorus degrades in high temperature and forms acid source with water, makes polyhydroxy
Microcrystalline cellulose dehydration carbonization forms protection layer of charcoal and completely cuts off fire-retardant effect to play, and magnesium hydroxide can then play synergistic
Fire-retardant effect absorbs a large amount of latent heat and discharges the generation for promoting phosphoric acid in conjunction with water, and three complements each other.In addition, microcrystalline cellulose
Element and nano-sized magnesium hydroxide can be used as enhancing material, greatly improve the mechanical property of lithium battery end cap.
Preferably, the ABS/PC blending resin is composed of the following raw materials in parts by weight：
Wherein, the preparation method of the fire-retardant microballoon includes the following steps：
A, 1- allyl -3- methyl chloride is pressed for imidazoles and 1,3-Dimethyl-2-imidazolidinone by weight 1-3:1 ratio
It is mixedly configured into ion solvent, the ion solvent is heated up as 90-100 DEG C, it then gradually will be micro- during stirring
Crystalline cellulose is added to the ion solvent, and the dosage of microcrystalline cellulose is the 6wt%-10wt% of ion solvent, until ion is molten
Agent is completely limpid, obtains microcrystalline cellulose clear solution；
B, nano-meter flame retardants are added to the microcrystalline cellulose clear solution that step A is obtained, are stirred homogeneous, hanged
Turbid, wherein the dosage of nano-meter flame retardants is the 5wt%-7wt% of microcrystalline cellulose clear solution；
C, the suspension for obtaining step B carries out electrostatic spray to get the fire-retardant microballoon is arrived.
The present invention utilizes microcrystalline cellulose regeneration principle, can make the micron order that nano-meter flame retardants are evenly dispersed and are reproduced
Microcrystalline cellulose cladding, makes fire-retardant microballoon of the invention have both the dimensional effect of nano material and micro materials, and with polymerize
Object compatibility is good, is easily dispersed.
Wherein, the partial size of the fire-retardant microballoon is 14.7-21.7 μm, average pore size 33.4-41.3nm, Kong Rongwei
8.14-12.51mL/g.The fire-retardant micro-spheres of the partial size, aperture and Kong Rong are good, are foamed into haveing excellent performance for layer of charcoal, with height
Polymer compatibility is good.
Wherein, the nano-meter flame retardants are by nanometer red phosphorus and nano-sized magnesium hydroxide by weight 2-4:The ratio of 1-3 forms,
The partial size of the nanometer red phosphorus is 60-80nm, and the partial size of the nano-sized magnesium hydroxide is 20-40nm.
Wherein, the spray voltage of the electrostatic spray is 20-40kV, and vapo(u)rizing temperature is 20-30 DEG C.
Wherein, the antioxidant is by β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, phosphorous acid
Three (2,4- di-tert-butyl-phenyl) esters, 2,6-di-tert-butyl p-cresol are by weight 1-3:1-3:The ratio of 1-3 forms.The compounding
The antioxidant of composition can effectively improve the inoxidizability of polymer, and on mechanical property substantially without influence.
Wherein, the lubricant is by calcium stearate, vinyl bis-stearamides and polyethylene wax by weight 1-3:2-4:
The ratio of 1-5 forms.The lubricant of compounding composition can be in favor of the extrusion molding and injection molding of high polymer, and to polymerization
The mechanical property of object is substantially without influence.
The present invention also provides a kind of preparation methods of fire-retardant lithium battery end cap as described above, include the following steps：
(1) each raw material is mixed, and is added twin-screw extrude blending and is granulated to get ABS/PC blending tree is arrived
Rouge；
(2) the ABS/PC blending resin obtained step (1), which is added in injection molding machine, carries out injection molding to get to institute
The fire-retardant lithium battery end cap stated.
Wherein, in the double screw extruder processing temperature in one to six area be respectively 180-200 DEG C, 180-200 DEG C,
200-230℃,200-230℃,190-210℃,180-200℃.The temperature in 6th area will affect the molten condition and stream of polymer
Dynamic property, six area's processing temperatures that the present invention is arranged make the inorganic matters such as fire-retardant microballoon have good dispersibility in high polymer.
The beneficial effects of the present invention are：The mixture of nanometer red phosphorus and nano-sized magnesium hydroxide composition of the present invention is as fire-retardant
Agent, and cladding processing is carried out to it using microcrystalline cellulose, can to avoid nano-meter flame retardants itself agglomeration and mention
The compatibility of high nano-meter flame retardants and polymer.Fire retardant mechanism of the invention is that red phosphorus is degraded in high temperature and formed with water
Acid source makes the microcrystalline cellulose of polyhydroxy be dehydrated carbonization and forms protection layer of charcoal to play and completely cut off fire-retardant effect, and hydroxide
Magnesium can then play the fire-retardant effect of synergistic, absorb a large amount of latent heat and discharge the generation for promoting phosphoric acid in conjunction with water, the mutually auxiliary phase of three
At.In addition, microcrystalline cellulose and nano-sized magnesium hydroxide can be used as enhancing material, the mechanical property of lithium battery end cap is greatly improved
Energy.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of fire-retardant lithium battery end cap, is molded by ABS/PC blending resin, and the ABS/PC blending resin includes such as
The raw material of lower parts by weight：
The fire-retardant microballoon is the microballoon of core-shell structure, and core is nano-meter flame retardants, and shell is microcrystalline cellulose, described to receive
Rice fire retardant is the mixture that nanometer red phosphorus and nano-sized magnesium hydroxide form.
Wherein, the preparation method of the fire-retardant microballoon includes the following steps：
A, by 1- allyl -3- methyl chloride for imidazoles and 1,3-Dimethyl-2-imidazolidinone by weight 2:1 ratio is mixed
Conjunction is configured to ion solvent, and the ion solvent is heated up as 95 DEG C, then gradually by microcrystalline cellulose during stirring
Element is added to the ion solvent, and the dosage of microcrystalline cellulose is that the 8wt% of ion solvent is obtained until ion solvent is completely limpid
To microcrystalline cellulose clear solution；
B, nano-meter flame retardants are added to the microcrystalline cellulose clear solution that step A is obtained, are stirred homogeneous, hanged
Turbid, wherein the dosage of nano-meter flame retardants is the 6wt% of microcrystalline cellulose clear solution；
C, the suspension for obtaining step B carries out electrostatic spray to get the fire-retardant microballoon is arrived.
Wherein, the partial size of the fire-retardant microballoon is 14.7 μm, average pore size 33.4nm, Kong Rongwei 8.14mL/g.
Wherein, the nano-meter flame retardants are by nanometer red phosphorus and nano-sized magnesium hydroxide by weight 3:2 ratio composition, it is described
The partial size of nanometer red phosphorus is 70nm, and the partial size of the nano-sized magnesium hydroxide is 30nm.
Wherein, the spray voltage of the electrostatic spray is 30kV, and vapo(u)rizing temperature is 25 DEG C.
Wherein, the antioxidant is by β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, phosphorous acid
Three (2,4- di-tert-butyl-phenyl) esters, 2,6-di-tert-butyl p-cresol are by weight 1:1:1 ratio composition.
Wherein, the lubricant is by calcium stearate, vinyl bis-stearamides and polyethylene wax by weight 2:3:3 ratio
Example composition.
The present invention also provides a kind of preparation methods of fire-retardant lithium battery end cap as described above, include the following steps：
(1) each raw material is mixed, and is added twin-screw extrude blending and is granulated to get ABS/PC blending tree is arrived
Rouge；
(2) the ABS/PC blending resin obtained step (1), which is added in injection molding machine, carries out injection molding to get to institute
The fire-retardant lithium battery end cap stated.
Wherein, the processing temperature in one to six area is respectively 190 DEG C, 190 DEG C, 215 DEG C, 215 in the double screw extruder
℃、200℃、190℃。
Embodiment 2
A kind of fire-retardant lithium battery end cap, is molded by ABS/PC blending resin, and the ABS/PC blending resin includes such as
The raw material of lower parts by weight：
The fire-retardant microballoon is the microballoon of core-shell structure, and core is nano-meter flame retardants, and shell is microcrystalline cellulose, described to receive
Rice fire retardant is the mixture that nanometer red phosphorus and nano-sized magnesium hydroxide form.
Wherein, the preparation method of the fire-retardant microballoon includes the following steps：
A, by 1- allyl -3- methyl chloride for imidazoles and 1,3-Dimethyl-2-imidazolidinone by weight 1:1 ratio is mixed
Conjunction is configured to ion solvent, and the ion solvent is heated up as 90 DEG C, then gradually by microcrystalline cellulose during stirring
Element is added to the ion solvent, and the dosage of microcrystalline cellulose is that the 6wt% of ion solvent is obtained until ion solvent is completely limpid
To microcrystalline cellulose clear solution；
B, nano-meter flame retardants are added to the microcrystalline cellulose clear solution that step A is obtained, are stirred homogeneous, hanged
Turbid, wherein the dosage of nano-meter flame retardants is the 5wt% of microcrystalline cellulose clear solution；
C, the suspension for obtaining step B carries out electrostatic spray to get the fire-retardant microballoon is arrived.
Wherein, the partial size of the fire-retardant microballoon is 21.7 μm, average pore size 41.3nm, Kong Rongwei 12.51mL/g.
Wherein, the nano-meter flame retardants are by nanometer red phosphorus and nano-sized magnesium hydroxide by weight 2:1 ratio composition, it is described
The partial size of nanometer red phosphorus is 60nm, and the partial size of the nano-sized magnesium hydroxide is 20nm.
Wherein, the spray voltage of the electrostatic spray is 20kV, and vapo(u)rizing temperature is 20 DEG C.
Wherein, the antioxidant is by β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, phosphorous acid
Three (2,4- di-tert-butyl-phenyl) esters, 2,6-di-tert-butyl p-cresol are by weight 1:3:3 ratio composition.
Wherein, the lubricant is by calcium stearate, vinyl bis-stearamides and polyethylene wax by weight 1:2:1 ratio
Example composition.
The present invention also provides a kind of preparation methods of fire-retardant lithium battery end cap as described above, include the following steps：
(1) each raw material is mixed, and is added twin-screw extrude blending and is granulated to get ABS/PC blending tree is arrived
Rouge；
(2) the ABS/PC blending resin obtained step (1), which is added in injection molding machine, carries out injection molding to get to institute
The fire-retardant lithium battery end cap stated.
Wherein, the processing temperature in one to six area is respectively 1180 DEG C, 180 DEG C, 200 DEG C, 200 in the double screw extruder
℃、190℃、180℃。
Embodiment 3
A kind of fire-retardant lithium battery end cap, is molded by ABS/PC blending resin, and the ABS/PC blending resin includes such as
The raw material of lower parts by weight：
The fire-retardant microballoon is the microballoon of core-shell structure, and core is nano-meter flame retardants, and shell is microcrystalline cellulose, described to receive
Rice fire retardant is the mixture that nanometer red phosphorus and nano-sized magnesium hydroxide form.
Wherein, the preparation method of the fire-retardant microballoon includes the following steps：
A, by 1- allyl -3- methyl chloride for imidazoles and 1,3-Dimethyl-2-imidazolidinone by weight 3:1 ratio is mixed
Conjunction is configured to ion solvent, and the ion solvent is heated up as 100 DEG C, then gradually by microcrystalline cellulose during stirring
Element is added to the ion solvent, and the dosage of microcrystalline cellulose is that the 10wt% of ion solvent is obtained until ion solvent is completely limpid
To microcrystalline cellulose clear solution；
B, nano-meter flame retardants are added to the microcrystalline cellulose clear solution that step A is obtained, are stirred homogeneous, hanged
Turbid, wherein the dosage of nano-meter flame retardants is the 7wt% of microcrystalline cellulose clear solution；
C, the suspension for obtaining step B carries out electrostatic spray to get the fire-retardant microballoon is arrived.
Wherein, the partial size of the fire-retardant microballoon is 18.6 μm, average pore size 37.4nm, Kong Rongwei 11.22mL/g.
Wherein, the nano-meter flame retardants are by nanometer red phosphorus and nano-sized magnesium hydroxide by weight 4:3 ratio composition, it is described
The partial size of nanometer red phosphorus is 80nm, and the partial size of the nano-sized magnesium hydroxide is 40nm.
Wherein, the spray voltage of the electrostatic spray is 40kV, and vapo(u)rizing temperature is 30 DEG C.
Wherein, the antioxidant is by β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, phosphorous acid
Three (2,4- di-tert-butyl-phenyl) esters, 2,6-di-tert-butyl p-cresol are by weight 3:1:1 ratio composition.
Wherein, the lubricant is by calcium stearate, vinyl bis-stearamides and polyethylene wax by weight 3:4:5 ratio
Example composition.
The present invention also provides a kind of preparation methods of fire-retardant lithium battery end cap as described above, include the following steps：
(1) each raw material is mixed, and is added twin-screw extrude blending and is granulated to get ABS/PC blending tree is arrived
Rouge；
(2) the ABS/PC blending resin obtained step (1), which is added in injection molding machine, carries out injection molding to get to institute
The fire-retardant lithium battery end cap stated.
Wherein, the processing temperature in one to six area is respectively 200 DEG C, 200 DEG C, 230 DEG C, 230 in the double screw extruder
℃、210℃、200℃。
Embodiment 4
A kind of fire-retardant lithium battery end cap, is molded by ABS/PC blending resin, and the ABS/PC blending resin includes such as
The raw material of lower parts by weight：
The fire-retardant microballoon is the microballoon of core-shell structure, and core is nano-meter flame retardants, and shell is microcrystalline cellulose, described to receive
Rice fire retardant is the mixture that nanometer red phosphorus and nano-sized magnesium hydroxide form.
Wherein, the preparation method of the fire-retardant microballoon includes the following steps：
A, by 1- allyl -3- methyl chloride for imidazoles and 1,3-Dimethyl-2-imidazolidinone by weight 1:1 ratio is mixed
Conjunction is configured to ion solvent, and the ion solvent is heated up as 93 DEG C, then gradually by microcrystalline cellulose during stirring
Element is added to the ion solvent, and the dosage of microcrystalline cellulose is that the 7wt% of ion solvent is obtained until ion solvent is completely limpid
To microcrystalline cellulose clear solution；
B, nano-meter flame retardants are added to the microcrystalline cellulose clear solution that step A is obtained, are stirred homogeneous, hanged
Turbid, wherein the dosage of nano-meter flame retardants is the 5.5wt% of microcrystalline cellulose clear solution；
C, the suspension for obtaining step B carries out electrostatic spray to get the fire-retardant microballoon is arrived.
Wherein, the partial size of the fire-retardant microballoon is 16.8 μm, average pore size 38.4nm, Kong Rongwei 10.45mL/g.
Wherein, the nano-meter flame retardants are by nanometer red phosphorus and nano-sized magnesium hydroxide by weight 1:1 ratio composition, it is described
The partial size of nanometer red phosphorus is 65nm, and the partial size of the nano-sized magnesium hydroxide is 25nm.
Wherein, the spray voltage of the electrostatic spray is 25kV, and vapo(u)rizing temperature is 25 DEG C.
Wherein, the antioxidant is by β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, phosphorous acid
Three (2,4- di-tert-butyl-phenyl) esters are by weight 1:1 ratio composition.
Wherein, the lubricant is by vinyl bis-stearamides and polyethylene wax by weight 1:1 ratio composition.
The present invention also provides a kind of preparation methods of fire-retardant lithium battery end cap as described above, include the following steps：
(1) each raw material is mixed, and is added twin-screw extrude blending and is granulated to get ABS/PC blending tree is arrived
Rouge；
(2) the ABS/PC blending resin obtained step (1), which is added in injection molding machine, carries out injection molding to get to institute
The fire-retardant lithium battery end cap stated.
Wherein, the processing temperature in one to six area is respectively 185 DEG C, 185 DEG C, 210 DEG C, 210 in the double screw extruder
℃、195℃、185℃。
Embodiment 5
A kind of fire-retardant lithium battery end cap, is molded by ABS/PC blending resin, and the ABS/PC blending resin includes such as
The raw material of lower parts by weight：
The fire-retardant microballoon is the microballoon of core-shell structure, and core is nano-meter flame retardants, and shell is microcrystalline cellulose, described to receive
Rice fire retardant is the mixture that nanometer red phosphorus and nano-sized magnesium hydroxide form.
Wherein, the preparation method of the fire-retardant microballoon includes the following steps：
A, by 1- allyl -3- methyl chloride for imidazoles and 1,3-Dimethyl-2-imidazolidinone by weight 2:1 ratio is mixed
Conjunction is configured to ion solvent, and the ion solvent is heated up as 98 DEG C, then gradually by microcrystalline cellulose during stirring
Element is added to the ion solvent, and the dosage of microcrystalline cellulose is that the 9wt% of ion solvent is obtained until ion solvent is completely limpid
To microcrystalline cellulose clear solution；
B, nano-meter flame retardants are added to the microcrystalline cellulose clear solution that step A is obtained, are stirred homogeneous, hanged
Turbid, wherein the dosage of nano-meter flame retardants is the 6.5wt% of microcrystalline cellulose clear solution；
C, the suspension for obtaining step B carries out electrostatic spray to get the fire-retardant microballoon is arrived.
Wherein, the partial size of the fire-retardant microballoon is 16.5 μm, average pore size 34.1nm, Kong Rongwei 9.55mL/g.
Wherein, the nano-meter flame retardants are by nanometer red phosphorus and nano-sized magnesium hydroxide by weight 2:3 ratio composition, it is described
The partial size of nanometer red phosphorus is 75nm, and the partial size of the nano-sized magnesium hydroxide is 35nm.
Wherein, the spray voltage of the electrostatic spray is 35kV, and vapo(u)rizing temperature is 28 DEG C.
Wherein, the antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester.
Wherein, the lubricant is calcium stearate.
The present invention also provides a kind of preparation methods of fire-retardant lithium battery end cap as described above, include the following steps：
(1) each raw material is mixed, and is added twin-screw extrude blending and is granulated to get ABS/PC blending tree is arrived
Rouge；
(2) the ABS/PC blending resin obtained step (1), which is added in injection molding machine, carries out injection molding to get to institute
The fire-retardant lithium battery end cap stated.
Wherein, the processing temperature in one to six area is respectively 190 DEG C, 190 DEG C, 215 DEG C, 215 in the double screw extruder
℃、200℃、190℃。
The present invention tests the ABS/PC blending resin of embodiment 1-5, obtains following table：
As seen from the above table, ABS/PC blending resin good flame resistance of the invention, passes through the blending and modifying of fire-retardant microballoon, mechanics
Performance also has great raising.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (10)
1. a kind of fire-retardant lithium battery end cap, it is characterised in that：It is molded by ABS/PC blending resin, tree is blended in the ABS/PC
Rouge includes the raw material of following parts by weight：
The fire-retardant microballoon is the microballoon of core-shell structure, and core is nano-meter flame retardants, and shell is microcrystalline cellulose, the nanometer resistance
Firing agent is the mixture that nanometer red phosphorus and nano-sized magnesium hydroxide form.
2. a kind of fire-retardant lithium battery end cap according to claim 1, it is characterised in that：The ABS/PC blending resin is by such as
The raw material of lower parts by weight forms：
3. a kind of fire-retardant lithium battery end cap according to claim 1, it is characterised in that：The preparation method of the fire-retardant microballoon
Include the following steps：
A, 1- allyl -3- methyl chloride is pressed for imidazoles and 1,3-Dimethyl-2-imidazolidinone by weight 1-3:1 ratio mixing
It is configured to ion solvent, the ion solvent is heated up as 90-100 DEG C, then gradually by crystallite fibre during stirring
Dimension element is added to the ion solvent, and the dosage of microcrystalline cellulose is the 6wt%-10wt% of ion solvent, until ion solvent is complete
All clear is clear, obtains microcrystalline cellulose clear solution；
B, nano-meter flame retardants are added to the microcrystalline cellulose clear solution that step A is obtained, are stirred homogeneous, obtained suspended
Liquid, wherein the dosage of nano-meter flame retardants is the 5wt%-7wt% of microcrystalline cellulose clear solution；
C, the suspension for obtaining step B carries out electrostatic spray to get the fire-retardant microballoon is arrived.
4. a kind of fire-retardant lithium battery end cap according to claim 3, it is characterised in that：The partial size of the fire-retardant microballoon is
14.7-21.7 μm, average pore size 33.4-41.3nm, Kong Rongwei 8.14-12.51mL/g.
5. a kind of fire-retardant lithium battery end cap according to claim 3, it is characterised in that：The nano-meter flame retardants are red by nanometer
Phosphorus and nano-sized magnesium hydroxide are by weight 2-4:The ratio of 1-3 forms, and the partial size of the nanometer red phosphorus is 60-80nm, described to receive
The partial size of rice magnesium hydroxide is 20-40nm.
6. a kind of fire-retardant lithium battery end cap according to claim 3, it is characterised in that：The spray voltage of the electrostatic spray
For 20-40kV, vapo(u)rizing temperature is 20-30 DEG C.
7. a kind of fire-retardant lithium battery end cap according to claim 1, it is characterised in that：The antioxidant is by β-(3,5-
Di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, phosphorous acid three (2,4- di-tert-butyl-phenyl) ester, the tertiary fourth of 2,6- bis-
Base paracresol is by weight 1-3:1-3:The ratio of 1-3 forms.
8. a kind of fire-retardant lithium battery end cap according to claim 1, it is characterised in that：The lubricant by calcium stearate,
Vinyl bis-stearamides and polyethylene wax are by weight 1-3:2-4:The ratio of 1-5 forms.
9. a kind of preparation method of fire-retardant lithium battery end cap described in claim 1-8 any one, it is characterised in that：Including such as
Lower step：
(1) each raw material is mixed, adds twin-screw extrude blending and is granulated to get the ABS/PC blending resin is arrived；
(2) it is described to get arriving that progress injection molding in injection molding machine is added in the ABS/PC blending resin for obtaining step (1)
Fire-retardant lithium battery end cap.
10. a kind of preparation method of fire-retardant lithium battery end cap according to claim 9, it is characterised in that：The twin-screw
The processing temperature in one to six area is respectively 180-200 DEG C, 180-200 DEG C, 200-230 DEG C, 200-230 DEG C, 190- in extruder
210℃、180-200℃。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110981977A (en) * | 2019-11-28 | 2020-04-10 | 广东宇星阻燃新材股份有限公司 | Flame-retardant cellulose and preparation method and application thereof |
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| CN103421283A (en) * | 2013-08-23 | 2013-12-04 | 太原理工大学 | Molten-drop-resistant highly-flame-retardant PET composite material and preparation method thereof |
| CN104804218A (en) * | 2015-04-28 | 2015-07-29 | 中科院广州化学有限公司南雄材料生产基地 | Nanocellulose surface-modified core-shell structure fire retardant, and preparation method and application of fire retardant |
| CN107369852A (en) * | 2017-07-28 | 2017-11-21 | 东莞市永邦新能源科技有限公司 | A kind of lithium battery packaging technology |
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Patent Citations (3)
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| CN103421283A (en) * | 2013-08-23 | 2013-12-04 | 太原理工大学 | Molten-drop-resistant highly-flame-retardant PET composite material and preparation method thereof |
| CN104804218A (en) * | 2015-04-28 | 2015-07-29 | 中科院广州化学有限公司南雄材料生产基地 | Nanocellulose surface-modified core-shell structure fire retardant, and preparation method and application of fire retardant |
| CN107369852A (en) * | 2017-07-28 | 2017-11-21 | 东莞市永邦新能源科技有限公司 | A kind of lithium battery packaging technology |
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| CN110981977A (en) * | 2019-11-28 | 2020-04-10 | 广东宇星阻燃新材股份有限公司 | Flame-retardant cellulose and preparation method and application thereof |
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