CN116751446A - Plastic shell material for automobile charging gun and preparation method thereof - Google Patents
Plastic shell material for automobile charging gun and preparation method thereof Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 229920003023 plastic Polymers 0.000 title claims abstract description 30
- 239000004033 plastic Substances 0.000 title claims abstract description 30
- 239000011257 shell material Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 106
- 229920005989 resin Polymers 0.000 claims abstract description 98
- 239000011347 resin Substances 0.000 claims abstract description 98
- 238000002156 mixing Methods 0.000 claims abstract description 41
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 25
- 238000001746 injection moulding Methods 0.000 claims abstract description 20
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 18
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 14
- 229920002877 acrylic styrene acrylonitrile Polymers 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 239000012779 reinforcing material Substances 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims description 55
- 239000000203 mixture Substances 0.000 claims description 46
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 34
- 229920002635 polyurethane Polymers 0.000 claims description 23
- 239000004814 polyurethane Substances 0.000 claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 229920001971 elastomer Polymers 0.000 claims description 19
- 239000005060 rubber Substances 0.000 claims description 19
- 229910000077 silane Inorganic materials 0.000 claims description 17
- -1 silane modified aluminum hydroxide Chemical class 0.000 claims description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 15
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical class [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 14
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 5
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229920007019 PC/ABS Polymers 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000032683 aging Effects 0.000 description 9
- 238000003756 stirring Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 description 1
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 101100021847 Homo sapiens LPXN gene Proteins 0.000 description 1
- 102100032755 Leupaxin Human genes 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- OSXYHAQZDCICNX-UHFFFAOYSA-N dichloro(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](Cl)(Cl)C1=CC=CC=C1 OSXYHAQZDCICNX-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- FSDNTQSJGHSJBG-UHFFFAOYSA-N piperidine-4-carbonitrile Chemical compound N#CC1CCNCC1 FSDNTQSJGHSJBG-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
-
- 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
- Y02T90/14—Plug-in electric vehicles
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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)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The application provides a plastic shell material for an automobile charging gun and a preparation method thereof, wherein the preparation method comprises the following steps: s100: uniformly mixing PC resin, ABS resin, ASA resin, LDPE resin, PS resin and antioxidant, and heating and melting to prepare a base material; s200: adding a reinforcing agent into the base material, and uniformly mixing to prepare a reinforcing material; s300: and adding a moisture resistant agent into the reinforced material, uniformly mixing, and performing rapid injection molding to prepare the plastic shell material for the automobile charging gun. By adding ASA resin, LDPE resin, PS resin, antioxidant and the like into the base material, the weather resistance of the material is greatly improved while the CTI index of the material is ensured, and the problem of poor weather resistance of the traditional PC/ABS material is solved, so that the use safety of the charging gun is ensured.
Description
Technical Field
The application relates to the technical field of automobile charging guns, in particular to a plastic shell material for an automobile charging gun and a preparation method thereof.
Background
With the development of technology, in recent years, the industry of electric vehicles in China rapidly develops, and the holding capacity of electric vehicles is continuously increased, wherein pure electric vehicles are dominant. The development of electric vehicles naturally lacks charging piles and charging guns matched with the electric vehicles. The charging gun is used by consumers in direct contact, so that the safety performance of the charging gun is high. The charging gun shell material not only needs to have good insulating property, but also needs to have high CTI (tracking index) and high glowing filament, especially a quick charging pile, and the high-voltage current has better performance requirement on the material. The shell of the existing charging gun mainly adopts PC material and PC/ABS material.
Because the charging piles are all in the open space, the charging piles can be subjected to sun-drying and rain-spraying and wind-blowing and rain-spraying, so that the charging piles have excellent weather resistance and can be used for guaranteeing safety for a long time. The electric automobile has a large holding amount in the south of China, but the environment in the south is moist and can often rainfall, and meanwhile, the height Wen Tianqi in the summer in the south is large, so that the environment is very easy to cause ageing of plastic materials. ABS has excellent mechanical properties, excellent impact strength, excellent wear resistance, good dimensional stability and oil resistance, and the CTI index of PC materials can be greatly improved by adding the ABS into PC. However, ABS materials have poor weather resistance, and in humid, high temperature, high uv intensity environments, ABS materials can rapidly age, thereby affecting the safety of the charging gun.
Disclosure of Invention
According to the plastic shell material for the automobile charging gun and the preparation method thereof, ASA resin, LDPE resin, PS resin, an antioxidant and the like are added into the base material, so that the weather resistance of the material is greatly improved while the CTI index of the material is ensured, the problem that the weather resistance of the conventional PC/ABS material is poor is solved, and the use safety of the charging gun is ensured.
The technical scheme adopted for solving the technical problems is as follows: a preparation method of a plastic shell material for an automobile charging gun comprises the following steps:
s100: uniformly mixing PC resin, ABS resin, ASA resin, LDPE resin, PS resin and antioxidant, and heating and melting to prepare a base material;
s200: adding a reinforcing agent into the base material, and uniformly mixing to prepare a reinforcing material;
s300: adding a moisture resistant agent into the reinforced material, uniformly mixing, and performing rapid injection molding to prepare a plastic shell material for the automobile charging gun;
wherein the strengthening agent comprises: high styrene rubber, modified aluminum hydroxide particles, nano titanium oxide particles, and a moisture resistant agent comprising: polyacrylonitrile, modified silica particles, polyurethane mixtures.
The base material of the plastic shell material prepared by the application contains PC resin, ABS resin, ASA resin, LDPE resin, PS resin and antioxidant, and has better weather resistance compared with PC/ABS material. The ASA resin, the LDPE resin and the PS resin interact with each other, so that the ageing reaction of the ABS resin can be effectively slowed down, the combination of the ASA resin and the PC resin can also effectively improve the weather resistance of the base material, the ageing speed of the PC resin is slowed down, the LDLP resin has good ageing resistance, and the combination of the PS resin and the PC resin can effectively improve the heat stability of the base material. In addition, the application also adds the reinforcing agent and the moisture-resistant agent into the base material, the reinforcing agent can enhance the mechanical property of the base material, the modified aluminum hydroxide particles and the high styrene rubber can also reduce the absorption of the base material to moisture, reduce the aging effect of water vapor on the ABS resin, and the moisture-resistant agent can reduce the hydrophilicity of the surface of the material, thereby reducing the contact between the plastic shell material and the moisture and further slowing down the aging of the ABS resin. The application improves the formula of the resin base material and adds the reinforcing agent and the moisture resistant agent, thereby improving the weather resistance of the whole material and ensuring that the material still has good mechanical property and CTI index under the environment of humidity, high temperature and high ultraviolet intensity.
Further, the mass part ratio of S100 is (120-130): (40-50): (10-15): (10-15): (5-10): the PC resin, the ABS resin, the ASA resin, the LDPE resin, the PS resin and the antioxidant of (1-2).
Further, S100 specifically includes:
s110: drying PC resin at 110-120 ℃ for 20-40 min, then putting the dried PC resin, ABS resin, ASA resin, LDPE resin, PS resin and antioxidant into a high-speed mixer, and controlling the rotating speed to 500-800 r/min and the mixing time to 10-20 min to obtain a mixture;
s120: drying the mixture at 120-130 ℃ for 20-30 min, and then putting the mixture into a double-screw extruder to be melted at 220-240 ℃ to prepare the base material.
Further, the reinforcing agent comprises the following components in parts by mass: (20-30): the high styrene rubber, modified aluminum hydroxide particles and nano titanium oxide particles of (10-20) are mixed according to the mass ratio of (20-30): (200-250).
Further, the modified aluminum hydroxide particles are silane modified aluminum hydroxide particles, and the specific modification steps are as follows:
s410: the mass ratio of the components is (50-60): mixing the aluminum hydroxide particles (0.3-0.5) with diphenyl dichlorosilane, and rapidly stirring at 50-55 ℃ for 100-120 min to obtain a first modified material;
s420: the mass ratio of the components is (50-60): mixing the first mixture of (8-10) with polyurethane, and rapidly stirring at 40-50 ℃ for 40-50 min to obtain a second modified material;
s430: dropwise adding the second modified material into the mixture while stirring the second modified material in a mass part ratio of (5-6): and (5) standing the mixed solution of methyltrimethoxysilane and ethanol for 2-2.5 h after the dripping, and then heating the mixed solution with hot air at 50-60 ℃ for 40-50 min to obtain silane modified aluminum hydroxide particles.
The silane modified aluminum hydroxide can effectively improve the overall mechanical property of the material, and the modified aluminum hydroxide can be more uniformly dispersed in the base material, and meanwhile, the water absorption of the plastic shell material is greatly reduced due to the saturation of water in the aluminum hydroxide.
Further, the reinforcing agent also comprises the following components in parts by mass (10-15): (5-10): the mass ratio of the nitrile rubber to the high styrene rubber in the reinforcing agent is (1-2): (0.8-1.2).
The rubber with the proportion is added into the base material, so that the toughness of the material can be effectively improved, and meanwhile, the influence of moisture on the ABS resin can be greatly reduced due to certain water absorption of the rubber material.
Further, S200 specifically includes:
s210: adding high styrene rubber into the base material at 220-240 ℃ and uniformly mixing;
s220: and adding modified aluminum hydroxide particles and nano titanium oxide particles into the base material at the temperature of 200-220 ℃ and uniformly mixing to prepare the reinforced material.
The modified aluminum hydroxide particles and the nano titanium oxide particles are added after the temperature is reduced in the steps, so that the agglomeration of the particles can be reduced, and the influence of the excessive temperature on the modified aluminum hydroxide particles can be avoided.
Further, the moisture-resistant agent comprises the following components in parts by mass (10-20): (10-20): the mass ratio of the polyacrylonitrile, the modified silicon dioxide particles and the polyurethane mixture in the (5-15) to the moisture resistant agent and the base material is (10-20): (200-250).
The moisture resistant agent can reduce the hydrophilicity of the surface of the material and reduce the residue of moisture on the surface of the plastic shell material, thereby effectively slowing down the aging of the ABS resin.
Further, the modified silica particles are resin modified silica particles, and the specific modification steps are as follows:
s510: the mass ratio of the components is (95-100): mixing (0.9-0.95) silicon dioxide particles and polymethyl triethoxysilane, spraying ethanol solution into the mixture while stirring, and heating at 85-90deg.C for 20-30 min to obtain first modified particles;
s520: the mass ratio of the components is (100-110): (5-10): (3-6): mixing the first mixed particles of (1-1.5), LDPE resin, ABS resin and aminopropyl trimethoxy silane, spraying isopropanol into the mixture while stirring, and standing for 20-24 h at 80-85 ℃ after stirring uniformly to obtain resin modified silica particles.
The modified silicon dioxide particles prepared by the method can be uniformly dispersed in the base material, and play a role in uniformly dispersing smile protrusions on the surface of the plastic shell material, so that water drops cannot stay on the surface of the material for a long time.
Further, the polyurethane mixture comprises polyurethane and silane modified aluminum hydroxide, and the specific preparation steps of the polyurethane mixture are as follows:
s600: the mass ratio of the components is (2-3): mixing the methylene dichloride and the vinyltrimethoxysilane of (1-2), then heating to 80-90 ℃ and adding the following components in parts by mass (0.5-0.7): (0.7-1.2): diethylene glycol monomethyl ether, dipropylene glycol diacrylate and hexamethylene diisocyanate (1.5-1.8), stirring for 6-7 h, cooling to 60-70 ℃, and adding the components in parts by mass (2.5-2.8): (0.1-0.2) silane modified aluminum hydroxide and hydroxyethylidene diphosphonic acid, and stirring for 4-5 h to obtain a polyurethane mixture.
The polyurethane mixture can reduce the invasion of moisture and ultraviolet rays into the plastic shell material, so that the aging speed of the material is greatly reduced, and the weather resistance of the material is improved. The silane modified aluminum hydroxide is added into the polyurethane mixture, so that the silane modified aluminum hydroxide in the material can be dispersed more uniformly.
Further, S300 specifically includes:
s310: adding polyacrylonitrile into the reinforced material at the temperature of 200-220 ℃ and uniformly mixing;
s320: and adding modified silicon dioxide particles and polyurethane mixture into the reinforced material at 180-190 ℃, uniformly mixing, and rapidly performing injection molding to prepare the plastic shell material for the automobile charging gun.
In the steps, the modified silicon dioxide particles and the polyurethane mixture are added into the reinforced material after cooling, so that the modified silicon dioxide particles and the polyurethane mixture can interact and link in a proper temperature range, thereby playing a role in improving the moisture resistance of the material
Further, rapid injection molding control: the injection molding temperature is 250-260 ℃, the injection molding speed is 90-100 mm/s, and the injection molding pressure is 90-100 Mpa.
The application also provides a plastic shell material for the automobile charging gun, which is prepared by the preparation method.
The plastic shell material is obtained by adopting the preparation method according to any one of the technical schemes, so that the plastic shell material has all the beneficial effects of the preparation method according to any one of the technical schemes, and is not repeated herein.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of embodiments of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Embodiment one:
the embodiment provides a preparation method of a plastic shell material for an automobile charging gun, which comprises the following specific steps:
s100: the preparation mass ratio is 123:42:13:11:6:1.6, drying the PC resin at 113 ℃ for 25min, and then putting the dried PC resin, the ABS resin, the ASA resin, the LDPE resin, the PS resin and the antioxidant into a high-speed mixer together, and controlling the rotating speed to 600r/min and the mixing time to 15min to obtain a mixture; drying the mixture at 127 ℃ for 25min, and then putting the mixture into a double-screw extruder to be melted at 230 ℃ to prepare a base material;
s200: the preparation mass ratio is 28:23:15, adding high styrene rubber, silane modified aluminum hydroxide particles and nano titanium oxide particles into the base material at 230 ℃ and uniformly mixing, wherein the mass ratio of the high styrene rubber to the base material is 11:230, a step of; adding silane modified aluminum hydroxide particles and nano titanium oxide particles into the base material at 205 ℃ and uniformly mixing to prepare a reinforced material;
s300: the preparation mass ratio is 12:15:6, adding polyacrylonitrile, resin modified silicon dioxide particles and polyurethane mixture into the reinforced material at 210 ℃ and uniformly mixing, wherein the mass ratio of the polyacrylonitrile to the base material is 5.5:230, a step of; and adding resin modified silicon dioxide particles and polyurethane mixture into the reinforced material at 185 ℃, uniformly mixing, and performing injection molding at an injection molding speed of 90mm/s to prepare the plastic shell material for the automobile charging gun.
Embodiment two:
the embodiment provides a preparation method of a plastic shell material for an automobile charging gun, which comprises the following specific steps:
s100: the preparation mass ratio is 123:42:13:11:6:1.6, drying the PC resin at 113 ℃ for 25min, and then putting the dried PC resin, the ABS resin, the ASA resin, the LDPE resin, the PS resin and the antioxidant into a high-speed mixer together, and controlling the rotating speed to 600r/min and the mixing time to 15min to obtain a mixture; drying the mixture at 127 ℃ for 25min, and then putting the mixture into a double-screw extruder to be melted at 230 ℃ to prepare a base material;
s200: the preparation mass ratio is 24:12:8:28:23:15, butadiene rubber, natural rubber, high styrene rubber, silane modified aluminum hydroxide particles and nano titanium oxide particles are added into the base material at 230 ℃, and the mass part ratio of the high styrene rubber to the base material is 11:230, a step of; adding silane modified aluminum hydroxide particles and nano titanium oxide particles into the base material at 205 ℃ and uniformly mixing to prepare a reinforced material;
s300: the preparation mass ratio is 12:15:6, adding polyacrylonitrile, resin modified silicon dioxide particles and polyurethane mixture into the reinforced material at 210 ℃ and uniformly mixing, wherein the mass ratio of the polyacrylonitrile to the base material is 5.5:230, a step of; and adding resin modified silicon dioxide particles and polyurethane mixture into the reinforced material at 185 ℃, uniformly mixing, and performing injection molding at an injection molding speed of 90mm/s to prepare the plastic shell material for the automobile charging gun.
Embodiment III:
the embodiment provides a preparation method of a plastic shell material for an automobile charging gun, which comprises the following specific steps:
s100: the preparation mass ratio is 123:42:13:11:6:1.6, drying the PC resin at 113 ℃ for 25min, and then putting the dried PC resin, the ABS resin, the ASA resin, the LDPE resin, the PS resin and the antioxidant into a high-speed mixer together, and controlling the rotating speed to 600r/min and the mixing time to 15min to obtain a mixture; drying the mixture at 127 ℃ for 25min, and then putting the mixture into a double-screw extruder to be melted at 230 ℃ to prepare a base material;
s200: the preparation mass ratio is 24:12:8:28:23:15, butadiene rubber, natural rubber, high styrene rubber, silane modified aluminum hydroxide particles and nano titanium oxide particles are added into the base material at 230 ℃, and the mass part ratio of the high styrene rubber to the base material is 11:230, a step of; adding silane modified aluminum hydroxide particles and nano titanium oxide particles into the base material at 205 ℃ and uniformly mixing to prepare a reinforced material;
s300: the preparation mass ratio is 12:15:6, adding polyacrylonitrile, resin modified silicon dioxide particles and polyurethane mixture into the reinforced material at 210 ℃ and uniformly mixing, wherein the mass ratio of the polyacrylonitrile to the base material is 5.5:230, a step of; and adding resin modified silicon dioxide particles and polyurethane mixture into the reinforced material at 185 ℃ to be uniformly mixed, and performing injection molding at an injection molding speed of 95mm/s to prepare the plastic shell material for the automobile charging gun.
Comparative example one:
preparing PC/ABS resin:
s100: the preparation mass ratio is 123:42 PC resin and ABS resin, drying the PC resin at 113 ℃ for 25min, then putting the dried PC resin and the ABS resin into a high-speed mixer, and controlling the rotating speed to 600r/min and the mixing time to 15min to obtain a mixture; the mixture is dried for 25min at 127 ℃, then is put into a double-screw extruder to be melted at 230 ℃, and then is extruded and granulated, and then is subjected to injection molding at an injection molding speed of 90mm/s, so that the PC/ABS resin material is prepared.
Comparative example two:
preparing a base resin:
s100: the preparation mass ratio is 123:42:13:11:6:1.6, drying the PC resin at 113 ℃ for 25min, and then putting the dried PC resin, the ABS resin, the ASA resin, the LDPE resin, the PS resin and the antioxidant into a high-speed mixer together, and controlling the rotating speed to 600r/min and the mixing time to 15min to obtain a mixture; the mixture is dried for 25min at 127 ℃, then is put into a double-screw extruder to be melted at 230 ℃, and then is extruded and granulated, and then is melted and injection molded at an injection molding speed of 90mm/s, thus preparing the base resin material.
Comparative example three:
preparing a reinforced base resin:
s100: the preparation mass ratio is 123:42:13:11:6:1.6, drying the PC resin at 113 ℃ for 25min, and then putting the dried PC resin, the ABS resin, the ASA resin, the LDPE resin, the PS resin and the antioxidant into a high-speed mixer together, and controlling the rotating speed to 600r/min and the mixing time to 15min to obtain a mixture; drying the mixture at 127 ℃ for 25min, and then putting the mixture into a double-screw extruder to be melted at 230 ℃ to prepare a base material;
s200: the preparation mass ratio is 28:23:15, adding high styrene rubber, silane modified aluminum hydroxide particles and nano titanium oxide particles into the base material at 230 ℃ and uniformly mixing, wherein the mass ratio of the high styrene rubber to the base material is 11:230, a step of; adding silane modified aluminum hydroxide particles and nano titanium oxide particles into the base material at 205 ℃, uniformly mixing, extruding, granulating, and then melting for injection molding at an injection speed of 90mm/s to prepare the reinforced base material resin material.
Performance test:
the products of examples one to three and comparative examples one to three were subjected to performance tests, and the test results are shown in table 1. Wherein the aging retention rate is retention rate of notch impact strength after the resin is aged for 2000 hours according to GB/T15596-1995, the water absorption rate is water absorption rate obtained according to GB/T1034-2008 test, and the contact angle is detection result obtained according to GB/T30693-2014 test.
TABLE 1
| Performance testing | CTI/V | Aging retention/% | Water absorption rate | Contact angle/° |
| Example 1 | 250 | 92 | 0.14 | 93 |
| Example two | 250 | 95 | 0.15 | 93 |
| Example III | 250 | 96 | 0.15 | 95 |
| Comparative example one | 250 | 72 | 0.3 | 80 |
| Comparative example two | 275 | 81 | 0.24 | 85 |
| Comparative example three | 250 | 89 | 0.15 | 87 |
The detection results show that the plastic shell material can keep a certain CTI index, the addition of ASA resin, LDPE resin and PS resin can effectively improve the weather resistance of the material and reduce the hydrophilicity and the water absorbability, the addition of the reinforcing agent can also effectively improve the weather resistance and reduce the water absorbability of the material, the addition of the moisture resistant agent reduces the hydrophilicity of the surface of the material, and the addition of nitrile rubber, butadiene rubber and natural rubber can also effectively improve the weather resistance of the material, and meanwhile, the improvement of injection molding speed also reduces the hydrophilicity of the material to a certain extent.
Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the application, and the scope of the application should be assessed accordingly to that of the appended claims.
Claims (10)
1. A method for preparing a plastic housing material for an automobile charging gun, comprising the steps of:
s100: uniformly mixing PC resin, ABS resin, ASA resin, LDPE resin, PS resin and antioxidant, and heating and melting to prepare a base material;
s200: adding a reinforcing agent into the base material, and uniformly mixing to prepare a reinforcing material;
s300: adding a moisture resistant agent into the reinforced material, uniformly mixing, and performing rapid injection molding to prepare the plastic shell material for the automobile charging gun;
wherein the strengthening agent comprises: high styrene rubber, modified aluminum hydroxide particles, nano titanium oxide particles, the moisture resistant agent comprising: polyacrylonitrile, modified silica particles, polyurethane mixtures.
2. The preparation method according to claim 1, wherein the mass ratio of (120-130) added in S100 is: (40-50): (10-15): (10-15): (5-10): the PC resin, the ABS resin, the ASA resin, the LDPE resin, the PS resin and the antioxidant of (1-2).
3. The preparation method according to claim 2, wherein the step S100 specifically comprises:
s110: drying PC resin at 110-120 ℃ for 20-40 min, then putting the dried PC resin, ABS resin, ASA resin, LDPE resin, PS resin and antioxidant into a high-speed mixer, and controlling the rotating speed to 500-800 r/min and the mixing time to 10-20 min to obtain a mixture;
s120: drying the mixture at 120-130 ℃ for 20-30 min, and then putting the mixture into a double-screw extruder to be melted at 220-240 ℃ to prepare the base material.
4. The preparation method according to claim 1, wherein the reinforcing agent comprises the components in a mass ratio of (20-30): (20-30): the high styrene rubber, modified aluminum hydroxide particles and nano titanium oxide particles of (10-20), wherein the mass part ratio of the reinforcing agent to the base material is (20-30): (200-250).
5. The preparation method according to claim 4, wherein the reinforcing agent further comprises a component in a mass ratio of (10-15): (5-10): the weight ratio of the nitrile rubber to the high styrene rubber in the reinforcing agent is (1-2): (0.8-1.2).
6. The method according to claim 4, wherein the step S200 specifically comprises:
s210: adding high styrene rubber into the base material at 220-240 ℃ and uniformly mixing;
s220: and adding modified aluminum hydroxide particles and nano titanium oxide particles into the base material at the temperature of 200-220 ℃ and uniformly mixing to obtain the reinforced material.
7. The preparation method according to claim 1, wherein the moisture-resistant agent comprises the components in a mass ratio of (10-20): (10-20): the mixture of polyacrylonitrile, modified silicon dioxide particles and polyurethane in the mass part ratio of the moisture resistant agent to the base material is (10-20): (200-250).
8. The method according to claim 7, wherein the step S300 specifically comprises:
s310: adding polyacrylonitrile into the reinforced material at the temperature of 200-220 ℃ and uniformly mixing;
s320: and adding modified silicon dioxide particles and polyurethane mixture into the reinforced material at the temperature of 180-190 ℃, uniformly mixing, and rapidly performing injection molding to prepare the plastic shell material for the automobile charging gun.
9. The production method according to claim 1, wherein the modified aluminum hydroxide particles are silane modified aluminum hydroxide particles; the modified silica particles are resin modified silica particles; the polyurethane mixture comprises polyurethane and silane modified aluminum hydroxide.
10. A plastic housing material for an automotive charging gun, prepared by the method of any one of claims 1-9.
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| CN202310902958.9A CN116751446A (en) | 2023-07-21 | 2023-07-21 | Plastic shell material for automobile charging gun and preparation method thereof |
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| CN202310902958.9A CN116751446A (en) | 2023-07-21 | 2023-07-21 | Plastic shell material for automobile charging gun and preparation method thereof |
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