CN108219276A - A kind of high tenacity heat superconducting flame-retardant polypropylene composite material and preparation process and purposes - Google Patents
A kind of high tenacity heat superconducting flame-retardant polypropylene composite material and preparation process and purposes Download PDFInfo
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- CN108219276A CN108219276A CN201810029500.6A CN201810029500A CN108219276A CN 108219276 A CN108219276 A CN 108219276A CN 201810029500 A CN201810029500 A CN 201810029500A CN 108219276 A CN108219276 A CN 108219276A
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- flame
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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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
- C08K3/2279—Oxides; Hydroxides of metals of antimony
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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
- C08K3/34—Silicon-containing compounds
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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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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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
- C08K5/00—Use of organic ingredients
- C08K5/02—Halogenated hydrocarbons
- C08K5/03—Halogenated hydrocarbons aromatic, e.g. C6H5-CH2-Cl
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of high tenacity heat superconducting flame-retardant polypropylene composite material, including：Polypropylene, Thermal conductive additives, fire retardant, fire retarding synergist and other auxiliary agents.The invention discloses a kind of preparation process of high tenacity heat superconducting flame-retardant polypropylene composite material, including：Each component is blended, and extruding pelletization is carried out using corotating twin-screw.High tenacity heat superconducting flame-retardant polypropylene composite material disclosed by the invention is used for new-energy automobile group lithium battery sheath.High tenacity heat superconducting flame-retardant polypropylene composite material provided by the invention has the advantages that heat conduction, fire-retardant, anti-aging, easy mold release, impact resistance, fully meet the required requirements of new-energy automobile lithium battery sheath, and thermal conductivity is in 2.2 4.5w/MK, fire-retardant to reach 1.5mm UL94 V0, toughness reaches 20 40KJ/ ㎡.
Description
Technical field
The present invention relates to technical field of composite materials, it is more particularly related to which a kind of high tenacity heat superconducting is fire-retardant
PP composite material.
Background technology
At present, new-energy automobile development is advanced by leaps and bounds, power source of the lithium battery as new-energy automobile, is the heart of locomotive
Dirty, safety is very crucial.Lithium battery be charged and discharged process can all generate a large amount of heat, if this heat cannot and
When conduct, consequence will be very serious.More buses domestic in recent years and new energy car auto-ignition event, lead
Very serious casualties and property loss are caused.Trace it to its cause is exactly that the heat conduction of material, flame retardant property are bad.
The material that the sheath of new-energy automobile lithium battery is selected at present is roughly divided into three classes：a：Metal aluminum alloy class；b：It is general
Logical highly impact-resistant ABS class；c：Fire-retardant highly impact-resistant ABS class.
Using metal alloy class production new energy lithium battery sheath, there is shortcomings：Hardly possible processing, processing efficiency are low；Matter
Amount weight, density are much larger than plastics；Hold easy to produce static electricity, cause the accidents such as short circuit；Metal is good conductor, and electric leakage thing occurs for lithium battery
Therefore do not accomplish insulation shielding later, reduce accident impact；The resilience of metal material is poor, collide or battery pack between mutually
The agreement of phase frictional impact causes deformation that can not restore, and accumulation for a long time can damage internal lithium battery.
Making lithium battery sheath using common highly impact-resistant ABS class material, there are shortcomings：Not fire-retardant, not heat conduction, heat distributes not
It goes out, easily causes fire incident；ABS material appearance is easy to produce static electricity, and there are security risks.
Using fire-retardant highly impact-resistant ABS class material as lithium battery sheath there is also not heat conduction, what heat did not distributed not go out
Shortcoming.
Invention content
It is an object of the invention to solve at least the above, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of high-ductilities that can be used in manufacturing new-energy automobile lithium battery sheath
Property heat superconducting flame-retardant polypropylene composite material has heat conduction, fire-retardant, impact-resistant performance, and is not likely to produce electrostatic, using more
Safety.
To achieve these goals, the present invention provides a kind of high tenacity heat superconducting flame-retardant polypropylene composite material, by matter
Score meter is measured, including following components：
Polypropylene xx%-xx%, Thermal conductive additives 10%-35%, fire retardant 8%-20%, fire retarding synergist 2%-5% with
And other auxiliary agents xx%-xx%.Polyacrylic impact strength selected by the present invention is in 20KJ/ ㎡ -60KJ/ ㎡.
Preferably, the high tenacity heat superconducting flame-retardant polypropylene composite material, the Thermal conductive additives are sodium base intercalation
Montmorillonite and the blend of ultrafine mica powder, and mass fraction of the ultrafine mica powder in the Thermal conductive additives is 10%-
90%；
The fineness of the sodium base intercalated montmorillonite is -3000 mesh of 800 mesh；The fineness of the ultrafine mica powder for 1250 mesh-
3500 mesh.
Preferably, the high tenacity heat superconducting flame-retardant polypropylene composite material, the fire retardant are bromide fire retardant；
The fire retarding synergist is antimony oxide.The purity of antimony oxide is 99.5%-99.8%.Bromide fire retardant includes ten bromines
Diphenylethane, eight bromo ether, brominated triazine, brominated epoxy resin, brominated Polystyrene etc..
Preferably, the high tenacity heat superconducting flame-retardant polypropylene composite material, other described auxiliary agents include antioxidant,
Dispersant, ultra-violet absorber, releasing agent and compatilizer.
Preferably, the high tenacity heat superconducting flame-retardant polypropylene composite material, the mass fraction of the antioxidant are
0.3%-0.5%, the antioxidant are selected from 168,1010,1076, one or more of 1098.
Preferably, the high tenacity heat superconducting flame-retardant polypropylene composite material, the mass fraction of the dispersant are
0.5%-1.5%, and any one of the dispersant in EBS, PE wax, PETS.
Preferably, the high tenacity heat superconducting flame-retardant polypropylene composite material, the quality of the ultra-violet absorber
Score is 0.1%-1%, preferably 0.3%, and the ultra-violet absorber be selected from septichen phenyl ester, 2- (2 '-hydroxyl-
5 '-aminomethyl phenyl) benzotriazole, 2,4-DihydroxyBenzophenone, ESCALOL 567,2- hydroxyls -4- just
Octyloxybenzophenone, 2- (2 '-hydroxyl -3 ', 5 '-two tertiary phenyl) -5- chlorinations benzotriazole, single benzoic acid resorcinol,
2,2 '-thiobis (4- t-octyl phenol oxygroup) nickel, three (1,2,2,6,6- pempidine base) phosphite esters, 4- benzoyloxys-
2,2,6,6- tetramethyl piperidines, 2, one in 4,6- tri- (2 '-n-butoxyphenyl) -1,3,5-triazines, hexamethylphosphoramide
Kind is several.
Preferably, the high tenacity heat superconducting flame-retardant polypropylene composite material, the mass fraction of the compatilizer are
Xx%, and the compatilizer is arbitrary a kind of in maleic anhydride grafted polyethylene wax, maleic anhydride inoculated polypropylene wax.
The invention discloses a kind of preparation process of high tenacity heat superconducting flame-retardant polypropylene composite material, including：
As mass fraction, by the polypropylene of xx%-xx%, the Thermal conductive additives of 10%-35%, 8%-20% it is fire-retardant
Other auxiliary agents of agent, the fire retarding synergist of 2%-5% and xx%-xx% are blended；
Extruding pelletization is carried out to the mixture after blending using corotating twin-screw, extrusion temperature is 180 DEG C -200 DEG C,
Obtain high tenacity heat superconducting flame-retardant polypropylene composite material.
The invention discloses a kind of purposes of high tenacity heat superconducting flame-retardant polypropylene composite material, the high tenacity superconductions
Hot flame-retardant polypropylene composite material is used for new-energy automobile group lithium battery sheath.
The present invention includes at least following advantageous effect：
1st, high tenacity heat superconducting flame-retardant polypropylene composite material thermal conductivity provided by the invention is in 2.2-4.5w/MK, resistance
Combustion reaches 1.5mm UL94V0, and toughness (being characterized with notch impact strength) reaches 20-40KJ/ ㎡.
2nd, high tenacity heat superconducting flame-retardant polypropylene composite material provided by the invention has heat conduction, fire-retardant, anti-aging, easily takes off
The advantages that mould, impact resistance, fully meets the required requirements of new-energy automobile lithium battery sheath.
3rd, the preparation process of high tenacity heat superconducting flame-retardant polypropylene composite material provided by the invention is simple, safe and reliable.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, to enable those skilled in the art with reference to specification
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more
The presence or addition of a other element or combinations.
Embodiment 1
57.1% polypropylene K8003 of sinopec Maoming Petrochemical branch company is selected to do base material (main material), adds in 25%
Thermal conductive additives, 12% decabromodiphenylethane, 3% antimony oxide, 0.3% septichen phenyl ester ultra-violet absorber
(light stabilizer), 0.3% EBS dispersants, 1.5% releasing agent, 0.3% antioxidant and 0.5% compatilizer.
After above-mentioned each component is blended, extruding pelletization, extrusion temperature condition are carried out using equidirectional parallel double-screw extruder
It is 180 DEG C -200 DEG C.The test data of the product prepared by the embodiment is listed in table 1 in detail.
The performance data of 1. product of table
Embodiment 2
48.6% polypropylene K8003 of sinopec Maoming Petrochemical branch company is selected to do base material (main material), adds in 35%
Thermal conductive additives, 11% decabromodiphenylethane, 3% antimony oxide, 0.3% septichen phenyl ester ultra-violet absorber
(light stabilizer), 0.3% EBS dispersants, 1% releasing agent, 0.3% antioxidant and 0.5% compatilizer.
It after above-mentioned each component is blended, is squeezed out using equidirectional parallel double-screw extruder, extrusion temperature is 180 DEG C -200
℃.The test data of the product prepared by the embodiment is listed in table 2 in detail.
The performance data of 2. product of table
1 toughness of products of embodiment, heat conduction, fire prevention reach design value as can be drawn from Table 1, meet new energy battery pack
Requirement of the lithium battery sheath to material property.Comparative example 1 and embodiment 2 and its test result are it is found that by adjusting heat conduction
Agent, fire retardant addition regulate and control the basic physical properties of heat conductivility and material, so that it is met the battery pack of different capacity to leading
The demand of heat.
Although the embodiments of the present invention have been disclosed as above, but its be not restricted in specification and embodiment it is listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, it is of the invention and unlimited
In specific details.
Claims (10)
1. a kind of high tenacity heat superconducting flame-retardant polypropylene composite material, which is characterized in that as mass fraction, including with the following group
Point：
Polypropylene xx%-xx%, Thermal conductive additives 10%-35%, fire retardant 8%-20%, fire retarding synergist 2%-5% and its
He is auxiliary agent xx%-xx%.
2. a kind of high tenacity heat superconducting flame-retardant polypropylene composite material according to claim 1, which is characterized in that described to lead
Hot auxiliary agent is sodium base intercalated montmorillonite and the blend of ultrafine mica powder, and the ultrafine mica powder is in the Thermal conductive additives
Mass fraction is 10%-90%；
The fineness of the sodium base intercalated montmorillonite is -3000 mesh of 800 mesh；The fineness of the ultrafine mica powder is 1250 mesh -3500
Mesh.
A kind of 3. high tenacity heat superconducting flame-retardant polypropylene composite material according to claim 1, which is characterized in that the resistance
Combustion agent is bromide fire retardant；The fire retarding synergist is antimony oxide.
4. a kind of high tenacity heat superconducting flame-retardant polypropylene composite material according to claim 1, which is characterized in that it is described its
He includes antioxidant, dispersant, ultra-violet absorber, releasing agent and compatilizer by auxiliary agent.
5. a kind of high tenacity heat superconducting flame-retardant polypropylene composite material according to claim 4, which is characterized in that described anti-
The mass fraction of oxygen agent is 0.3%-0.5%, and the antioxidant is selected from 168,1010,1076, one or more of 1098.
6. a kind of high tenacity heat superconducting flame-retardant polypropylene composite material according to claim 4, which is characterized in that described point
The mass fraction of powder is 0.5%-1.5%, and any one of the dispersant in EBS, PE wax, PETS.
A kind of 7. high tenacity heat superconducting flame-retardant polypropylene composite material according to claim 4, which is characterized in that the purple
The mass fraction of ultraviolet absorbers be 0.1%-1%, and the ultra-violet absorber be selected from septichen phenyl ester, 2- (2 '-
Hydroxyl -5 '-aminomethyl phenyl) benzotriazole, 2,4-DihydroxyBenzophenone, ESCALOL 567,2- hydroxyls
Base -4- oxy-octyl benzophenones, 2- (2 '-hydroxyl -3 ', 5 '-two tertiary phenyl) -5- chlorinations benzotriazole, single benzoic acid isophthalic
Two phenolic esters, 2,2 '-thiobis (4- t-octyl phenol oxygroup) nickel, three (1,2,2,6,6- pempidine base) phosphite esters, 4- benzene first
Acyloxy -2,2,6,6- tetramethyl piperidines, 2,4,6- tri- (2 '-n-butoxyphenyl) -1,3,5-triazines, hexamethylphosphoramide
One or more of.
A kind of 8. high tenacity heat superconducting flame-retardant polypropylene composite material according to claim 4, which is characterized in that the phase
The mass fraction for holding agent is xx%, and the compatilizer is selected from maleic anhydride grafted polyethylene wax, maleic anhydride inoculated polypropylene
It is arbitrary a kind of in wax.
9. a kind of preparation of high tenacity heat superconducting flame-retardant polypropylene composite material according to claim 1~8 any one
Technique, which is characterized in that including：
As mass fraction, by the polypropylene of xx%-xx%, the Thermal conductive additives of 10%-35%, 8%-20% fire retardant,
The fire retarding synergist of 2%-5% and other auxiliary agents of xx%-xx% are blended；
Extruding pelletization is carried out to the mixture after blending using corotating twin-screw, extrusion temperature is 180 DEG C -200 DEG C, is obtained
High tenacity heat superconducting flame-retardant polypropylene composite material.
10. a kind of a kind of purposes of high tenacity heat superconducting flame-retardant polypropylene composite material according to claims 1 to 8,
It is characterized in that, the high tenacity heat superconducting flame-retardant polypropylene composite material is used for new-energy automobile group lithium battery sheath.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213748A (en) * | 2021-11-16 | 2022-03-22 | 上海金发科技发展有限公司 | Mica filled polypropylene composite material and preparation method and application thereof |
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