CN112519287A - Anti-exposure and anti-aging automobile charging pile shell - Google Patents
Anti-exposure and anti-aging automobile charging pile shell Download PDFInfo
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- CN112519287A CN112519287A CN202011136520.7A CN202011136520A CN112519287A CN 112519287 A CN112519287 A CN 112519287A CN 202011136520 A CN202011136520 A CN 202011136520A CN 112519287 A CN112519287 A CN 112519287A
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- automobile charging
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- 230000003712 anti-aging effect Effects 0.000 title description 2
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 230000032683 aging Effects 0.000 claims abstract description 29
- 238000001035 drying Methods 0.000 claims abstract description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000004677 Nylon Substances 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 229920001778 nylon Polymers 0.000 claims abstract description 13
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 229920000909 polytetrahydrofuran Polymers 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004743 Polypropylene Substances 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 10
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- -1 polypropylene Polymers 0.000 claims abstract description 10
- 229920001155 polypropylene Polymers 0.000 claims abstract description 10
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 10
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000001165 hydrophobic group Chemical group 0.000 claims abstract description 8
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 5
- 239000004014 plasticizer Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 11
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 7
- WSXIMVDZMNWNRF-UHFFFAOYSA-N antimony;ethane-1,2-diol Chemical compound [Sb].OCCO WSXIMVDZMNWNRF-UHFFFAOYSA-N 0.000 claims description 5
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 claims description 4
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 claims description 4
- JVLRYPRBKSMEBF-UHFFFAOYSA-K diacetyloxystibanyl acetate Chemical compound [Sb+3].CC([O-])=O.CC([O-])=O.CC([O-])=O JVLRYPRBKSMEBF-UHFFFAOYSA-K 0.000 claims description 2
- 230000036561 sun exposure Effects 0.000 claims description 2
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 16
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 description 5
- 229960001826 dimethylphthalate Drugs 0.000 description 5
- 150000008301 phosphite esters Chemical class 0.000 description 5
- 238000001291 vacuum drying Methods 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003878 thermal aging Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/006—Producing casings, e.g. accumulator cases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
-
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention discloses a preparation method of an automobile charging pile shell resistant to exposure and aging, which comprises the following steps: mixing polypropylene, titanium dioxide, fly ash and a lubricant, preheating to 80-90 ℃, sequentially adding a heat stabilizer and a plasticizer in a stirring state, continuously stirring, and drying to obtain a premix alpha; adopting nylon 1214 and polytetramethylene ether glycol as raw materials, mixing the raw materials, drying in vacuum, heating under stirring, adding a catalyst for reaction, adding premix alpha, nano graphene and siloxane with hydrophobic groups, continuously stirring, cooling and crushing to obtain premix gamma; heating and turning the premix gamma, thinly passing the premix gamma, standing the premix gamma for curing, remilling the cured material, performing pressure treatment, repeating the pressure-relief mode for 2 to 4 times, preheating at the temperature of 160-.
Description
Technical Field
The invention relates to the technical field of automobile charging piles, in particular to an exposure and aging resistant automobile charging pile shell and a preparation method thereof.
Background
The new energy automobile fills electric pile can provide energy supply for the operation, is the important basic braced system of new energy automobile, also is the important link in new energy automobile commercialization, industrialization process. The input and the alternating current network lug connection of car stake of charging, the output of car stake of charging install with the car input socket matched charge the end structure be used for charging for electric automobile, can charge for various model cars according to the voltage class of difference.
The function of the automobile charging pile is similar to that of an oiling machine in a gas station, and the automobile charging pile can be fixed on the ground or on the wall and installed in public environments, residential quarters, charging stations and the like. However, the existing outdoor charging pile is exposed outside for a long time and is easy to suffer from sunlight erosion, and particularly, the existing outdoor charging pile is difficult to maintain stability and easy to age when exposed to the sun for a long time, so that a solution is needed urgently.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an automobile charging pile shell resistant to exposure and aging and a preparation method thereof.
A preparation method of an exposure and aging resistant automobile charging pile shell comprises the following steps:
s1, mixing polypropylene, titanium dioxide, fly ash and a lubricant, preheating to 80-90 ℃, sequentially adding a heat stabilizer and a plasticizer in a stirring state, continuously stirring, and drying to obtain a premix alpha;
s2, mixing nylon 1214 and polytetramethylene ether glycol serving as raw materials, drying in vacuum, heating to 140 ℃ under a stirring state, adding a catalyst, reacting for 2-6min, adding premix alpha, nano graphene and siloxane with hydrophobic groups, continuously stirring, cooling and crushing to obtain premix gamma;
s3, heating the premix gamma to the temperature of 120-.
Preferably, in S1, the mass ratio of polypropylene, titanium dioxide, fly ash, lubricant, heat stabilizer and plasticizer is 60-100: 10-20: 6-10: 1-3: 1-2: 1-2.
Preferably, in S1, the drying temperature is 90-100 ℃.
Preferably, in S2, the nylon 1214 has a melt index of 0.5g/10 min.
Preferably, in S2, the mass ratio of the nylon 1214, the polytetramethylene ether glycol, the catalyst, the premix alpha, the nano graphene and the siloxane with the hydrophobic group is 20-30: 4-12: 0.1-0.16: 80-120: 2-6: 0.1-0.6.
Preferably, in S2, the siloxane with hydrophobic groups is vinyltriethoxysilane.
Preferably, in S2, the catalyst is at least one of antimony acetate, ethylene glycol antimony, germanium oxide and titanium silicalite catalyst C-94.
Preferably, the roll gap in the thin-passing process of S3 is 0.4-0.6 mm.
The exposure and aging resistant automobile charging pile shell is prepared by the preparation method of the exposure and aging resistant automobile charging pile shell.
The technical effects of the invention are as follows:
according to the invention, nylon 1214 and polytetramethylene ether glycol are used as raw materials and combined under the action of the catalyst, the obtained product has good elasticity and excellent aging resistance, and can effectively absorb external damage by matching with nano-graphene to avoid aging fatigue cracking;
under the action of siloxane with hydrophobic groups, adsorption points and chemical action points can be formed on the inner surface of filler particles and polymer chains under the action of the alpha of the premix, so that a chemical cross-linked network and a winding network are formed, and the nano graphene forms a multi-phase composite structure in the network, so that the stability of the charging pile shell can be effectively maintained even if the charging pile shell is exposed outdoors for a long time, the aging, fatigue and cracking are not easy to occur, and the sun exposure and aging resistance is further enhanced;
the impact resistance and the thermal aging resistance of the obtained automobile charging pile shell are obviously improved, and even if the automobile charging pile shell is exposed outside for a long time and is subjected to the conditions of exposure to wind, rain and erosion, the problems of short service life and easy aging of the new energy automobile charging pile shell can be effectively solved, and the service life and the safety of the new energy automobile charging pile are improved.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
A preparation method of an exposure and aging resistant automobile charging pile shell comprises the following steps:
s1, adding 100kg of polypropylene, 10kg of titanium dioxide, 10kg of fly ash and 1kg of lubricant into a high-speed mixer, stirring for 2min at the speed of 800r/min, preheating to 90 ℃, sequentially adding 1kg of organic phosphite ester and 2kg of dimethyl phthalate in a stirring state, stirring for 2min, and drying in an oven at the temperature of 100 ℃ to obtain premix alpha;
s2, using 20kg of nylon 1214 with a melt index of 0.5g/10min and 12kg of polytetramethylene ether glycol as raw materials, mixing the raw materials and drying the raw materials in a vacuum drying oven, wherein the drying temperature is 80 ℃, the drying time is 4 hours, heating to 140 ℃ under a stirring state, adding 0.16kg of ethylene glycol antimony for reaction, the reaction time is 2 minutes, adding 120kg of premix alpha, 2kg of nano graphene and 0.6kg of vinyl triethoxysilane, continuing stirring for 2 minutes, cooling and crushing to obtain premix gamma;
s3, feeding the premix gamma into a double-roll open mill, turning for 2min at 130 ℃, thinly passing for 2 times at a roll gap of 0.6mm, standing for 4h for curing, remilling the cured material for 5min to eliminate bubbles, feeding the material into a pressurizing machine for pressurizing treatment, repeating the pressurizing-pressure releasing mode for 4 times, feeding the material into a forming die, preheating for 6min at 160 ℃, further heating to 195 ℃, forming for 10min at 8MPa, and cooling and reducing the pressure to obtain the insolation and aging resistant automobile charging pile shell.
Example 2
A preparation method of an exposure and aging resistant automobile charging pile shell comprises the following steps:
s1, adding 60kg of polypropylene, 20kg of titanium dioxide, 6kg of fly ash and 3kg of lubricant into a high-speed mixer, stirring for 6min at the speed of 600r/min, preheating to 80 ℃, sequentially adding 2kg of organic phosphite ester and 1kg of dimethyl phthalate in a stirring state, stirring for 6min, and drying in an oven at the temperature of 90 ℃ to obtain premix alpha;
s2, mixing 30kg of nylon 1214 with a melt index of 0.5g/10min and 4kg of polytetramethylene ether glycol serving as raw materials, drying the mixture in a vacuum drying oven at 90 ℃ for 2h, heating to 150 ℃ under a stirring state, adding 0.1kg of ethylene glycol antimony for reaction for 6min, adding 80kg of premix alpha, 6kg of nano-graphene and 0.1kg of vinyltriethoxysilane, continuously stirring for 4min, cooling and crushing to obtain premix gamma;
s3, feeding the premix gamma into a double-roll open mill, turning for 6min at 120 ℃, thinly passing for 5 times at a roll gap of 0.4mm, standing for 2h for curing, remilling the cured material for 10min to eliminate bubbles, feeding the material into a pressurizing machine for pressurizing treatment, repeating the pressurizing-pressure releasing mode for 2 times, feeding the material into a forming die, preheating for 4min at 170 ℃, heating to 210 ℃, forming for 12min at 6MPa, cooling and reducing the pressure to obtain the insolation and aging resistant automobile charging pile shell.
Example 3
A preparation method of an exposure and aging resistant automobile charging pile shell comprises the following steps:
s1, adding 85kg of polypropylene, 14kg of titanium dioxide, 8.5kg of fly ash and 1.8kg of lubricant into a high-speed mixer, stirring at the speed of 720r/min for 4min, preheating to 84 ℃, sequentially adding 1.4kg of organic phosphite ester and 1.6kg of dimethyl phthalate under the stirring state, stirring for 3min, and drying in an oven at the temperature of 96 ℃ to obtain premix alpha;
s2, using 23kg of nylon 1214 with a melt index of 0.5g/10min and 10kg of polytetramethylene ether glycol as raw materials, mixing the raw materials and drying the raw materials in a vacuum drying oven, wherein the drying temperature is 82-86 ℃, the drying time is 2 hours, heating to 143 ℃ under a stirring state, adding 0.13kg of germanium oxide for reaction, the reaction time is 4 minutes, adding 105kg of premix alpha, 4kg of nano graphene and 0.3kg of vinyl triethoxysilane, continuously stirring for 2 minutes, cooling and crushing to obtain premix gamma;
s3, feeding the premix gamma into a double-roll open mill, turning for 4min at 126 ℃, thinly passing for 4 times at a roll gap of 0.5mm, standing for 3h for curing, remilling the cured material for 7min to eliminate bubbles, feeding the material into a pressurizing machine for pressurizing treatment, repeating the pressurizing-pressure releasing mode for 3 times, feeding the material into a forming die, preheating for 5min at 165 ℃, heating to 202 ℃, forming for 11min at 7MPa, cooling and reducing the pressure to obtain the insolation and aging resistant automobile charging pile shell.
Example 4
A preparation method of an exposure and aging resistant automobile charging pile shell comprises the following steps:
s1, adding 80kg of polypropylene, 12kg of titanium dioxide, 8kg of fly ash and 1.5kg of lubricant into a high-speed mixer, stirring at the speed of 700r/min for 3min, preheating to 82 ℃, sequentially adding 1.2kg of organic phosphite ester and 1.5kg of dimethyl phthalate in a stirring state, stirring for 3min, and drying in an oven at the temperature of 95 ℃ to obtain a premix alpha;
s2, using 22kg of nylon 1214 with a melt index of 0.5g/10min and 10kg of polytetramethylene ether glycol as raw materials, mixing the raw materials and drying the raw materials in a vacuum drying oven, wherein the drying temperature is 82 ℃, the drying time is 2 hours, heating to 142 ℃ under a stirring state, adding 0.12kg of germanium oxide for reaction, the reaction time is 3 minutes, adding 100kg of premix alpha, 3kg of nano graphene and 0.2kg of vinyltriethoxysilane, continuing stirring for 2 minutes, cooling and crushing to obtain premix gamma;
s3, feeding the premix gamma into a double-roll open mill, turning for 3min at 125 ℃, thinly passing for 3 times at a roll gap of 0.4mm, standing for 2h for curing, remilling the cured material for 6min to eliminate bubbles, feeding the material into a pressurizing machine for pressurizing treatment, repeating the pressurizing-pressure releasing mode for 2 times, feeding the material into a forming die, preheating for 4min at 162 ℃, heating to 200 ℃, forming for 10min at 6MPa, cooling and reducing the pressure to obtain the insolation and aging resistant automobile charging pile shell.
Example 5
A preparation method of an exposure and aging resistant automobile charging pile shell comprises the following steps:
s1, adding 90kg of polypropylene, 16kg of titanium dioxide, 9kg of fly ash and 2kg of lubricant into a high-speed mixer, stirring for 5min at the speed of 750r/min, preheating to 86 ℃, sequentially adding 1.6kg of organic phosphite ester and 1.8kg of dimethyl phthalate in a stirring state, stirring for 4min, and drying in an oven at the temperature of 98 ℃ to obtain premix alpha;
s2, adopting 25kg of nylon 1214 with a melt index of 0.5g/10min and 11kg of polytetramethylene ether glycol as raw materials, mixing the raw materials and drying the raw materials in a vacuum drying oven, wherein the drying temperature is 86 ℃, the drying time is 3 hours, heating to 146 ℃ under a stirring state, adding 0.14kg of ethylene glycol antimony for reaction, the reaction time is 5 minutes, adding 110kg of premix alpha, 5kg of nano graphene and 0.5kg of vinyl triethoxysilane, continuing stirring for 3 minutes, cooling and crushing to obtain premix gamma;
s3, feeding the premix gamma into a double-roll open mill, turning at 129 ℃ for 5min, thinly passing for 5 times at a roll gap of 0.6mm, standing for 4h for curing, remilling the cured material for 8min to eliminate bubbles, feeding the material into a pressurizing machine for pressurizing treatment, repeating the pressurizing-pressure releasing mode for 4 times, feeding the material into a forming die, preheating at 166 ℃ for 6min, heating to 206 ℃, forming at 8MPa for 12min, cooling and reducing the pressure to obtain the insolation and aging resistant automobile charging pile shell.
The examples 3 to 5 were processed into test specimens by injection molding and subjected to mechanical property testing. The specific test method is as follows: tensile properties were tested according to ISO 527-2; bending performance testing was performed according to ISO 178; the simple beam notched impact strength was carried out according to ISO 179. The specific test method of the long-term thermal aging test is as follows: evaluating the long-term thermal stability of a test sample by exposing the test sample to a hot air aging oven at 150 ℃, the test time of the heat aging resistance test being 1000 hours, the test sample after aging in the hot air oven being tested for tensile strength according to ISO527-2 test method; the impact strength of the notch of the simply supported beam is tested according to the ISO179 test method, and the test result is as follows:
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The preparation method of the exposure and aging resistant automobile charging pile shell is characterized by comprising the following steps:
s1, mixing polypropylene, titanium dioxide, fly ash and a lubricant, preheating to 80-90 ℃, sequentially adding a heat stabilizer and a plasticizer in a stirring state, continuously stirring, and drying to obtain a premix alpha;
s2, mixing nylon 1214 and polytetramethylene ether glycol serving as raw materials, drying in vacuum, heating to 140 ℃ under a stirring state, adding a catalyst, reacting for 2-6min, adding premix alpha, nano graphene and siloxane with hydrophobic groups, continuously stirring, cooling and crushing to obtain premix gamma;
s3, heating the premix gamma to the temperature of 120-.
2. The method for preparing the exposure and aging resistant automobile charging pile shell according to claim 1, wherein in S1, the mass ratio of polypropylene, titanium dioxide, fly ash, lubricant, heat stabilizer and plasticizer is 60-100: 10-20: 6-10: 1-3: 1-2: 1-2.
3. The method for preparing the exposure-aging-resistant automobile charging pile shell according to claim 1, wherein in S1, the drying temperature is 90-100 ℃.
4. The method for preparing the sunproof and aging-resistant automobile charging pile housing according to claim 1, wherein in S2, the melt index of the nylon 1214 is 0.5g/10 min.
5. The method for preparing the exposure-aging-resistant automobile charging pile shell according to claim 1, wherein in S2, the mass ratio of nylon 1214, polytetramethylene ether glycol, the catalyst, the premix alpha, the nano graphene and the siloxane with the hydrophobic group is 20-30: 4-12: 0.1-0.16: 80-120: 2-6: 0.1-0.6.
6. The method for preparing the sunproof and aging-resistant automobile charging pile housing according to claim 1, wherein in S2, the siloxane with the hydrophobic group is vinyltriethoxysilane.
7. The method for preparing the exposure-aging-resistant automobile charging pile shell according to claim 1, wherein in S2, the catalyst is at least one of antimony acetate, ethylene glycol antimony, germanium oxide and titanium silicon catalyst C-94.
8. The method for preparing the sun exposure and aging resistant automobile charging pile shell according to claim 1, wherein in the thin passing process of S3, the roller spacing is 0.4-0.6 mm.
9. An exposure-aging-resistant automobile charging pile shell, which is prepared by the method for preparing the exposure-aging-resistant automobile charging pile shell according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136520.7A CN112519287A (en) | 2020-10-22 | 2020-10-22 | Anti-exposure and anti-aging automobile charging pile shell |
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|---|---|---|---|
| CN202011136520.7A CN112519287A (en) | 2020-10-22 | 2020-10-22 | Anti-exposure and anti-aging automobile charging pile shell |
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| CN112519287A true CN112519287A (en) | 2021-03-19 |
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Citations (7)
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