CN103160115A - Injection molding engineering plastic formula for vehicle bodies of various motor vehicles such as electrical vehicle - Google Patents
Injection molding engineering plastic formula for vehicle bodies of various motor vehicles such as electrical vehicle Download PDFInfo
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- CN103160115A CN103160115A CN2011104239662A CN201110423966A CN103160115A CN 103160115 A CN103160115 A CN 103160115A CN 2011104239662 A CN2011104239662 A CN 2011104239662A CN 201110423966 A CN201110423966 A CN 201110423966A CN 103160115 A CN103160115 A CN 103160115A
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Abstract
An injection molding engineering plastic formula for vehicle bodies of various motor vehicles such as an electrical vehicle includes a first step of modification of polyamide (PA66) which is composed of polyamide 66, toughened elastomer POE or EPOM, anti-ultraviolet (UV) agents, light stabilizer (HLS) and other assistants, a second step of enhancing the modification of polyamide (PA6) which is composed of polyamide (PA6) inorganic non-metal materials (carbon fibers or glass fibers), the toughened elastomer POE, the anti-UV agents, light stabilizer (HALS) and other assistants, a third step of manufacturing products through mixing of elastomer EVA/TPR/PU/PE and other assistants, and a fourth step of modification of polycarbonate (PC) composed of ABS, toughened elastomer TPR or TPE and other assistants. Through a second-time mixing as the four steps, vehicle body shells of the various motor vehicles are pressurized, cooled and molded once in a high-pressure injection mold.
Description
One, technical field
The present invention relates to plastic formula, more particularly, the present invention relates to high strength, high tenacity, high temperature resistant, low temperature resistant and anti-aging and can be used for the synthesizing engineering plastic material prescription of injection moulding towards various motor vehicle body such as automobile and electromobiles.
Two, background technology
Automotive industry is the embodiment of a national overall national strength and synthesized competitiveness level, is the mainstay type industry that promotes a national economy development in an all-round way.At present, the fast development of fuel-engined vehicle has brought revolution on efficient and economically prosperity to human society, but all take high energy consumption, high pollution as cost, according to statistics, the gasoline of automobile consumption accounts for 1/3 of global gasoline consumption, simultaneously automobile every year will discharge the tail gas that is comprised of 160 kinds of objectionable impuritiess of more than 3,400,000,000 ton to atmosphere, the pollution of vehicle exhaust has accounted for more than 70% of modern city atmospheric pollution total amount.
Along with the day of the energy, environmental problem is becoming tight, exploitation cleanliness without any pollution, the electromobile tool that propulsion source is diversified, effciency of energy transfer is high are of great significance.The industrialization of electromobile has become the point of penetration of Chinese Automobile Industry ' industry restructuring and great-leap-forward development, there is the gap of nearly 20 years in China internal-combustion engines vehicle is technical apart from international most advanced level, but the gap of 5 years is only being arranged aspect the R﹠D and production of the eco-friendly cars such as electromobile.This means that China might be in environmentally friendly vehicle epoch performance newcoming advantage, the paces that catch up with the developed countries are rapidly realized the synchronized development with World Auto Industry.
The energy expenditure of automobile and automobile self gross weight is directly proportional, and wants to reduce unnecessary energy expenditure, should alleviate under the premise that security is guaranteed the weight of automobile self as far as possible, and according to statistics, the automobile own wt often alleviates 10%, and fuel oil consumption will reduce 6%-9%.For automobile and electromobile, the ratio that the weight of body structural member accounts for complete vehicle quality is the highest, and is from the body structure weight reduction of starting with, very important to the optimization of vehicle performance.At present, the lightweight material that is widely used in automobile and electromobile vehicle body mainly contains high tensile steel plate, aluminium alloy, magnesium alloy, metal foam etc.The Synergy2010 hybrid power concept car that Ford releases has adopted high-intensity car body of aluminum alloy, has made weight saving 1/3, and oil consumption reaches 3.94L/100km.
In recent years, the full plastic automobile vehicle body has become the emphasis of external each large motor corporation research and development.Ford has released THINK board electromobile, all-plastic body, and gross weight is 940kg, the 85km that once can only travel that charges, speed per hour reaches 90km/h.At home, Yongkang City sea hawk plastic car body Manufacturing Co., Ltd adopts roll moulding shaping technology to produce the automobile body casing of all-plastic, plastic raw materials is HDPE, LDPE or LLDPE, but the inefficiency of this technique, plastic raw materials used is single does not have higher intensity and high tenacity, each vehicle body that is shaped on average needed more than 1 hour, saw national inventing patent " a kind of roll moulding shaping technology of body of a motor car ", publication number: CN 101531046A.
The vehicle body major part of a lot of electromobiles that provinces and cities produce in the present whole nation is all the vehicle body that adopts glass reinforced plastic and metallic iron leather to make, and all there is no good intensity and toughness, and total quality is heavy, and the making production time is long, does not reach the purpose of energy-saving and emission-reduction.
Specific embodiments:
Embodiment one: the modified plastics formula of polyamide 66.
This material is by polyamide 66: 75 % by weight, and toughness reinforcing body elasticity body POE:15 % by weight, the anti-UV agent of 5 % by weight and photostabilizer (HALS), other auxiliary agents such as the oxidation inhibitor of 5 % by weight, lubricant, fluidizer, coupling agent forms.Its manufacture craft is: with polyamide 66, toughner, anti-UV agent and other auxiliary agent in proportion in barrel through 260 ℃ of meltings of twin screw, secondary is mixing, through the side reaction of celebrating a festival, extrudes slivering.After tank is cooling, be cut into the 3-5mm particle by dicing machine.The modified polyamide particle is heated to 260 ℃ at injection moulding machine by barrel, and rotating preformed in barrel through single screw rod is melt state, high-pressure injection in mould, pressurize, cooling disposal molding goods.
The PA66 modified plastics formula of making take above-mentioned making method is as raw material, adopts the performance index of electromobile that injection molding process makes, mini automobile body as follows:
| Index | PA66/6 modified plastics vehicle body |
| Density | 1.08g/cm3 |
| Flexural strength | ISO 17860Mpa |
| Modulus in flexure | ISO 1781400Mpa |
| Tensile strength | ISO 52745Mpa |
| Shock strength | ISO179Izod breach 85KJ/m 2 |
| Low temperature resistant | -40℃ |
| Ageing-resistant | Outdoor physical environment used 10 years |
Embodiment two: the modified plastics formula that strengthens toughened polyamide 6.
This material is by polyamide 6: 55 % by weight, ceramic (carbon fiber or glass fibre) 20 % by weight, toughness reinforcing body elasticity body POE:15 % by weight, the anti-UV agent of 5 % by weight and photostabilizer (HALS), other auxiliary agents such as the oxidation inhibitor of 5 % by weight, lubricant, fluidizer, coupling agent forms.Its manufacture craft is: polyamide 6, toughner, anti-UV agent, and other auxiliary agent in proportion in barrel through 290 ℃ of meltings of twin screw, secondary is mixing, through the side reaction of celebrating a festival, extrudes slivering.After tank is cooling, be cut into the 3-5mm particle by dicing machine.The modified polyamide particle is heated to 260 ℃ at injection moulding machine by barrel, and rotating preformed in barrel through single screw rod is melt state, high-pressure injection in mould, pressurize, cooling disposal molding goods.
The modified plastics formula of the toughness reinforcing PA6 of enhancing that makes take above-mentioned making method is as raw material, adopts the performance index of the electromobile vehicle body that injection molding process makes as follows:
| Index | PA6 modified plastics vehicle body |
| Density | 1.34g/cm3 |
| Intensity | ISO 178210Mpa |
| Modulus in flexure | ISO 1787500Mpa |
| Tensile strength | ISO 527145Mpa |
| Shock strength | ISO179Izod breach 40KJ/m 2 |
| Low temperature resistant | -40℃ |
| Ageing-resistant | Outdoor physical environment used 15 years |
Embodiment three: elastomeric modified plastics formula.This material is by elastomerics EVA:25 % by weight, the TPR:35 % by weight, and the PU:25 % by weight, PE:15 % by weight, foaming ratio are 1: 1.3.Its manufacture craft is: 1) first with above-mentioned materials mixed milling proportionally, extrude slivering.Be cut into the 3-5mm particle by dicing machine.Again particle is passed through the injecting machine material tube extrusion sheet material that again foams by whipping agent.2) sheet material is passed through at high temperature post forming of mould, be molded into goods.
The elastomer-modified plastic formula of making take above-mentioned making method is as raw material, adopts the performance index of electromobile that injection molding process makes, mini automobile body as follows:
| Index | Elastomer-modified plastic body cover |
| Density | 0.9g/cm 3 |
| Surface hardness | 40° |
| Toughness | Constantly |
| Low temperature resistant | -40℃ |
| Ageing-resistant | Be exposed to the sun 15 years |
Embodiment four: the modified plastics formula of polycarbonate (PC).
This material is mainly by polycarbonate (PC) 60 % by weight, and acrylonitrile-butadiene-styrene (ABS) (ABS) 30 weight form.Toughening elastic body TPR or TPE20%.Its manufacture craft is: with PC and ABS and TPR in proportion in barrel through 250 ℃ of meltings of twin screw, secondary is mixing, extrudes slivering.After tank is cooling, be cut into the 3-5mm particle by dicing machine.Modification PC/ABS/TPR particle is heated to 250 ° of C at injection moulding machine by barrel, and rotating preformed in barrel through single screw rod is melt state, high-pressure injection in mould, pressurize, cooling disposal molding goods.
The PC modified plastics formula of making take above-mentioned making method is as raw material, adopts the performance index of the electromobile vehicle body that injection molding process makes as follows:
| Index | PC modified plastics vehicle body |
| Density | 1.2g/cm 3 |
| Intensity | ISO 178208Mpa |
| Toughness | ISO 179Izod breach 60KJ/m 2 |
| Low temperature resistant | -45℃ |
| Ageing-resistant | Be exposed to the sun 15 years |
Claims (7)
1. engineering plastic formula involvement aspect of the present invention is to the material prescription of the vehicle body inner and outer shell injection moulding of the various Motor vehicles such as automobile and electromobile, purpose is to overcome the deficiency that prior art exists, it is little that formula synthesizing engineering plastic of the present invention has density, specific tenacity is high, corrosion-resistant, shockproof, noise reduction and heat-proof quality are good, shape the advantages such as easy and cheap, the synthetic plastics material that adopts replaces non-ferrous metal and the alloy material of various costlinesses, not only can reduce the energy consumption of automobile, but also can improve the aesthetics of vehicle configuration and the handiness of design.A kind of high strength towards various motor vehicle body such as super-micro electric car and automobiles, high tenacity, high temperature resistant, low temperature resistant, anti-aging are provided, and can be used for the plastic formula that injection molding process is produced.Plastic formula of the present invention is mainly used in injection moulding machine, the production technique of injection moulding, super-micro electric car of every injection moulding and minicar shell only need the several minutes time, and can form automatic production line, a large amount of artificial rate that reduce high price, greatly save time, improve turnout, greatly reduce production cost.
2. this plastic formula comprises following four kinds of schemes:
Scheme one: the modification of polyamide 66 (PA66): by weight percentage, this material is by polyamide 66,40-70%, toughness reinforcing body elasticity body POE or EPDM 15-35%, anti-UV agent and two kinds of auxiliary agents of photostabilizer (HALS) 4-6% are used in conjunction with, other auxiliary agents such as oxidation inhibitor, lubricant, fluidizer, the 2-5% such as tinting material, coupling agent form.
Its manufacture craft is:
1) with polyamide 66 (PA66), toughner (elastomerics POE or EPDM), anti-UV agent, and other auxiliary agent in proportion in barrel through 250～270 ℃ of meltings of twin screw, secondary is mixing, through the side reaction of celebrating a festival, extrudes slivering.
2) after tank is cooling, be cut into the 3-5mm particle by dicing machine.
3) the modified polyamide particle is heated to 250 ℃-270 ℃ at injection moulding machine by barrel, rotating preformed in barrel through screw rod is melt state, high-pressure injection in mould, pressurize, cooling disposal molding goods.
3. scheme two: strengthen the modification of toughened polyamide 6 (PA6): by weight percentage, this material is by polyamide 6 (PA6) 50-60%, ceramic (carbon fiber or glass fibre) 15-30%, toughness reinforcing body elasticity body POE 10-20%, anti-UV agent and two kinds of auxiliary agents of photostabilizer (HALS) 4-6% are used in conjunction with, other auxiliary agents such as oxidation inhibitor, lubricant, fluidizer, coupling agent, the 2-5% such as tinting material form.
Its manufacture craft is:
1) polyamide 6 (PA6), toughner (elastomerics POE or EPDM), ceramic (carbon fiber or glass fibre) 15-30%, anti-UV agent, with other auxiliary agent in proportion in barrel through twin screw 230-290 ℃ melting, secondary is mixing, through the side reaction of celebrating a festival, extrudes slivering.
2) after tank is cooling, be cut into the 3-5mm particle by dicing machine.
3) the modified polyamide particle is heated to 230 ℃-290 ℃ at injection moulding machine by barrel, rotating preformed in barrel through single screw rod is melt state, high-pressure injection in mould, pressurize, cooling disposal molding goods.
Polyamide 6 (PA6) modified formula is compared with polyamide 66 (PA66) modified formula, and the snappiness of material is better, but rigidity is a little less than PA66.Toughness reinforcing PA resin can keep good impact property under-40 ℃ of dry environments.
4. scheme three: the mixing of elastomerics EVA/TPR/PU/PE: by weight percentage, this material is by elastomerics EVA15-30%, TPR20-30%, PU 25%-30%, PE 15%-20%, foaming ratio 1: 1.3-1: 1.5.
Its manufacture craft is:
1) first with above-mentioned materials mixed milling proportionally, extrude slivering.Be cut into the 3-5mm particle by dicing machine.Again particle is passed through the injecting machine material tube extrusion sheet material that again foams by whipping agent.
2) sheet material is passed through at high temperature post forming of mould, be molded into goods.Also can be through injection machine mould foaming once shaped goods.
5. scheme four: the modification of polycarbonate (PC): vinyl cyanide one divinyl one vinylbenzene (ABS) toughening elastic body TPR or TPE are by weight percentage, this material is mainly by polycarbonate (PC) 30-60%, and acrylonitrile-butadiene-styrene (ABS) (ABS) 20-40% forms.Toughening elastic body TPR or TPE10-15%.
Its manufacture craft is:
1) with PC, ABSTPR and other auxiliary agent in proportion in barrel through twin screw 230-290 ℃ melting, secondary is mixing, extrudes slivering.
2) after tank is cooling, be cut into the 3-5mm particle by dicing machine.
3) modification PC/ABS TPR particle is heated to 230 ℃-290 ℃ at injection moulding machine by barrel, rotating preformed in barrel through single screw rod is melt state, high-pressure injection in mould, pressurize, cooling disposal molding goods.
6. plastic formula of the present invention is mainly used in vehicle body injection moulding, the moulding vehicle body shell products of the various Motor vehicles such as miniature electric automobile, minicar tricycle, carriage for children, old scooter.
7. the above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited in above-mentioned embodiment, and every technical scheme that belongs to the principle of the invention all belongs to protection scope of the present invention.For a person skilled in the art, some improvements and modifications of carrying out under the prerequisite that does not break away from the principle of the invention, these improvements and modifications also should be considered as protection scope of the present invention.
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| CN2011104239662A CN103160115A (en) | 2011-12-16 | 2011-12-16 | Injection molding engineering plastic formula for vehicle bodies of various motor vehicles such as electrical vehicle |
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| CN2011104239662A CN103160115A (en) | 2011-12-16 | 2011-12-16 | Injection molding engineering plastic formula for vehicle bodies of various motor vehicles such as electrical vehicle |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788632A (en) * | 2013-12-17 | 2014-05-14 | 浙江普利特新材料有限公司 | High-rigidity high-durability carbon fiber enhanced polyamide composite material and preparation method thereof |
| CN103911004A (en) * | 2014-04-29 | 2014-07-09 | 苏州新区华士达工程塑胶有限公司 | Modified polyamide-66 plastic |
| CN104861649A (en) * | 2015-05-21 | 2015-08-26 | 广东威林工程塑料有限公司 | High-temperature-resistant nylon material for high-humidity and high-pressure environment and preparation method of high-temperature-resistant nylon material |
| CN105295368A (en) * | 2015-11-02 | 2016-02-03 | 上海交通大学 | Damp-heat aging resisting carbon fiber-reinforced nylon 66 compound material and preparation thereof |
| CN105670209A (en) * | 2016-03-07 | 2016-06-15 | 苏州莱特复合材料有限公司 | ABS (acrylonitrile-butadiene-styrene) alloy and preparation method thereof |
| CN106566231A (en) * | 2016-11-02 | 2017-04-19 | 安徽隆宇塑业有限公司 | Nylon 6 composite material |
| CN107556745A (en) * | 2017-09-19 | 2018-01-09 | 东莞金沃塑料科技有限公司 | A kind of slide plate composite |
| CN107778849A (en) * | 2017-11-02 | 2018-03-09 | 雪龙集团股份有限公司 | A kind of anti-UV materials of automobile lampshade filled nylon toughness reinforcing and preparation method thereof |
| CN110041700A (en) * | 2019-05-17 | 2019-07-23 | 金旸（厦门）新材料科技有限公司 | A kind of carbon fiber reinforced nylon material and prepare raw material and its preparation method and application |
| CN110452531A (en) * | 2019-08-29 | 2019-11-15 | 东莞市吉诺塑胶制品有限公司 | A kind of weather resistant and corrosion resistant erosion plastic plate |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788632A (en) * | 2013-12-17 | 2014-05-14 | 浙江普利特新材料有限公司 | High-rigidity high-durability carbon fiber enhanced polyamide composite material and preparation method thereof |
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| CN105295368A (en) * | 2015-11-02 | 2016-02-03 | 上海交通大学 | Damp-heat aging resisting carbon fiber-reinforced nylon 66 compound material and preparation thereof |
| CN105670209A (en) * | 2016-03-07 | 2016-06-15 | 苏州莱特复合材料有限公司 | ABS (acrylonitrile-butadiene-styrene) alloy and preparation method thereof |
| CN106566231A (en) * | 2016-11-02 | 2017-04-19 | 安徽隆宇塑业有限公司 | Nylon 6 composite material |
| CN107556745A (en) * | 2017-09-19 | 2018-01-09 | 东莞金沃塑料科技有限公司 | A kind of slide plate composite |
| CN107778849A (en) * | 2017-11-02 | 2018-03-09 | 雪龙集团股份有限公司 | A kind of anti-UV materials of automobile lampshade filled nylon toughness reinforcing and preparation method thereof |
| CN110041700A (en) * | 2019-05-17 | 2019-07-23 | 金旸（厦门）新材料科技有限公司 | A kind of carbon fiber reinforced nylon material and prepare raw material and its preparation method and application |
| CN110041700B (en) * | 2019-05-17 | 2021-05-25 | 金旸（厦门）新材料科技有限公司 | Carbon fiber reinforced nylon material, preparation raw material, preparation method and application thereof |
| CN110452531A (en) * | 2019-08-29 | 2019-11-15 | 东莞市吉诺塑胶制品有限公司 | A kind of weather resistant and corrosion resistant erosion plastic plate |
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Application publication date: 20130619 |