CN103554691B - A kind of Automotive interior product - Google Patents
A kind of Automotive interior product Download PDFInfo
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- CN103554691B CN103554691B CN201310541702.6A CN201310541702A CN103554691B CN 103554691 B CN103554691 B CN 103554691B CN 201310541702 A CN201310541702 A CN 201310541702A CN 103554691 B CN103554691 B CN 103554691B
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- polystyrene
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- lactic acid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L23/14—Copolymers of propene
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention provides a kind of intermiscibility good and there is excellent scratch resistant performance, the High polymer material for automotive trim product of low-temperature impact-resistant performance and Automotive interior product prepared therefrom, described material has following formula: with parts by weight, modified polypropylene resin 100 parts, ethene-alpha-olefin copolymer 35-40 part, poly(lactic acid) 20-25 part, polystyrene-poly iso-butylene-polystyrene block copolymer 25-35 part, magnesium sulfate crystal whisker 3-5 part, mica powder 10-15 part, oleylamide 1-2 part.
Description
Technical field
The present invention relates to automotive material technical field, a kind of Automotive interior product is particularly provided.
Background technology
At automobile manufacturing field, polypropylene has the advantages such as quality is light, solvent resistant, easily processing, excellent mechanical property, easily recovery and is applied widely because of it, particularly for meeting the following requirement to the future development such as energy-saving and environmental protection, safety of automotive industry, polypropylene material quality is light, processing is simple, feature that is that easily reclaim is the most applicable.
But along with the development of automotive engineering and improving constantly of requiring indices, polypropylene material is also more and more difficult to the needs meeting automobile component, particularly automotive trim product performance because of its inherent defect.First, polypropylene material surface hardness relative deficiency on the one hand, scratch resistant performance is poor, on the other hand, for meeting performance requriements and often needs add mineral filler in a large number in polypropylene material, and these fillers often cause stress concentration and cause the problems such as stress whitening, simultaneously automotive upholstery as dashboard, auxiliary fasia console, door-plate, column, glove box, pull the parts such as cover plate and be all difficult to avoid being subject to hard object producing, in transport and the process that uses and collide with, thus cause the scuffing on surface for above-mentioned reasons and affect and to use and attractive in appearance; The second, automotive upholstery must reach certain low-temperature impact-resistant requirement, and particularly 0 DEG C is arrived-30 DEG C of low temperature impact properties, otherwise, under harsh climate condition, once collide and may produce hard fragments in vehicle traveling process, the safety of critical driving and by bus personnel.Moreover, because polypropylene material is non-polar material, surface energy is low, make the poor compatibility of itself and most polymers, not easily infiltrate, bond and print, coating property is poor, low with the cohesive strength of coating, and automotive upholstery such as dashboard etc. is needed and other material binding, also needing good adhesive property, just there is the contradiction being difficult to be in harmonious proportion in this.
Therefore, how to develop a kind of advantage keeping the high strength rigidity of polypropylene material own and thermotolerance, improve the scratch resistant performance of material, low-temperature impact-resistant performance and the performance that mixes with other polymkeric substance, be the key point determining polypropylene material future development and application simultaneously always.
Summary of the invention
Namely object of the present invention is to provide a kind of novel intermiscibility good and has excellent scratch resistant performance, the formula of High polymer material for automotive trim product of low-temperature impact-resistant performance and the Automotive interior product that prepared by it.
Automotive interior product of the present invention adopts following preparation method to prepare:
First the modified polypropylene resin according to the ready magnesium sulfate crystal whisker of high polymer material formulation of the present invention, mica powder, oleylamide and half amount is put in stirrer and carry out pre-mixing 5min with the rotating speed of 1500rpm;
Subsequently by remaining modified polypropylene resin, and ethene-alpha-olefin copolymer, poly(lactic acid), polystyrene-poly iso-butylene-polystyrene block copolymer are put in stirrer, carry out mixing 10min with the rotating speed of 750rpm;
Put in twin screw extruder by the material mixed subsequently, make material carry out mixing 8min under the molten state of 220 DEG C, screw slenderness ratio is 40:1, and screw speed is 500rpm;
Extrude after mixing, cool, pelletizing, obtain macromolecular material;
By macromolecular material by precise injection molding machine injection molding, wherein injection temperature is 200 DEG C, and die temperature is 80 DEG C.
Wherein the formula of macromolecular material is, with parts by weight, modified polypropylene resin 100 parts, ethene-alpha-olefin copolymer 35-40 part, poly(lactic acid) 20-25 part, polystyrene-poly iso-butylene-polystyrene block copolymer 25-35 part, magnesium sulfate crystal whisker 3-5 part, mica powder 10-15 part, oleylamide 1-2 part.
Described modified polypropylene resin is through phenolic resin modified ethylene/propene atactic copolymerized polypropene, and wherein, in resin, the content of ethene is 7-10%, and the content of resol is 2-5%.
In described ethene-alpha-olefin copolymer, the content of ethene is 60-70%.
Described poly(lactic acid) is poly (l-lactic acid).
In described polystyrene-poly iso-butylene-polystyrene block copolymer, the content of polystyrene is 50-60%, and the scope of its number-average molecular weight is between 150000-200000.
In described magnesium sulfate crystal whisker, the length of fiber is 10-15 μm, and mean diameter is 0.5-0.8 μm.
Described mica powder is length is 10-15 μm, and slenderness ratio be greater than 10 sheet structure.
Namely advantage of the present invention is, the reasonable design formula of automotive trim macromolecular material, by the interaction between each component and influence each other and improve polypropylene-based resin material, obtain intermiscibility good and there is the High polymer material for automotive trim product of excellent scratch resistant performance, low-temperature impact-resistant performance.
Embodiment
Content of the present invention is described in detail below by specific embodiment.
Embodiment 1.
Carry out preparing burden according to each component proportion given by table 1 and dry to 100 DEG C for subsequent use;
First the modified polypropylene resin according to the ready magnesium sulfate crystal whisker of proportioning, mica powder, oleylamide and half amount is put in stirrer and carry out pre-mixing 5min with the rotating speed of 1500rpm;
Subsequently by remaining modified polypropylene resin, and ethene-alpha-olefin copolymer, poly(lactic acid), polystyrene-poly iso-butylene-polystyrene block copolymer are put in stirrer, carry out mixing 10min with the rotating speed of 750rpm;
Put in twin screw extruder by the material mixed subsequently, make material carry out mixing 8min under the molten state of 220 DEG C, screw slenderness ratio is 40:1, and screw speed is 500rpm;
Extrude after mixing, cool, pelletizing, obtain High polymer material for automotive trim product of the present invention.
By macromolecular material of the present invention 220 DEG C, hot compacting is test sample size under 60MPa condition.
Embodiment 2-4 and comparative example 1*-6* fills a prescription outer (wherein 1* has the formula identical with embodiment 1, but which employs the homo-polypropylene of non-modified) as shown in table 1, and preparation method is all identical with embodiment 1.
Table 1
1. in table 1, A-G represents modified polypropylene resin, ethene-alpha-olefin copolymer, poly(lactic acid), polystyrene-poly iso-butylene-polystyrene block copolymer, magnesium sulfate crystal whisker, mica powder, oleylamide successively;
2. elongation at break is at draw speed 100mm/min(low speed) and 500mm/min(at a high speed) condition under measure respectively;
3. to estimate, scratch resistance occurs that the scuffing power of obvious stress whitening is for standard;
4. whether defectiveness is for standard to estimate surface after the acrylic resin coating of surface spraying 20 μm for intermiscibility: zero for without obviously uneven, × obviously uneven for having.
Modified polypropylene resin is the basis of formula system of the present invention, it possesses the rigidity of polypropylene material excellence for material system, the feature such as thermotolerance and lightweight has great importance, particularly the present invention adopts through through phenolic resin modified ethylene/propene atactic copolymerized polypropene, can improve the scratch resistant performance of material system and resistance to high-speed impact property well.This is because the importing of ethene in polypropylene backbone can effectively suppress polyacrylic crystallization to be inclined to, thus the flexibility of material system can be improved, scratch resistant performance is increased, and ethene also rich certain transparency is attractive in appearance to strengthen, in order to play the effect of ethene, in ethylene/propene atactic copolymerized polypropene, the content of ethene at least should be 7%, but more than 10%, otherwise should not obviously will worsen the fundamental property such as rigidity and thermotolerance of system.And adopt phenolic resin modified, greatly can improve the resistance to high-speed impact property of material system on the one hand, the intermiscibility of acrylic resin and other resins and mineral filler can also be improved on the other hand.For playing above-mentioned effect, in ethylene/propene atactic copolymerized polypropene, the content of resol should more than 2%, but too much interpolation can affect the properties based on modified polypropylene resin, therefore should control it below 5%.
Ethene-alpha-olefin copolymer has vital role for the low-temperature impact-resistant performance improving system, in order to meet the requirement of material system of the present invention for low temperature impact properties, the content of ethene-alpha-olefin copolymer at least should more than 35 parts, but its content can not be too high, otherwise obviously will worsen the rigidity of material system, the requirement in system of the present invention is below 40 parts.Should between 60-70% in order to meet ethylene content in performance requriements ethene-alpha-olefin copolymer, the ethene-alpha-olefin copolymer simultaneously met the demands can also improve the intermiscibility of system to a certain extent.
Poly(lactic acid) is added mainly based on the current requirement for performances such as material system environmental protection, easily recovery, lactic acid is as the product got by plant resources direct fermentation, there is excellent biodegradability, it has excellent rigidity simultaneously, the requirement of Automotive interior product can be adapted to a certain extent, but poly(lactic acid) should adopt poly (l-lactic acid) (L component is more than 99%) as far as possible, and its content is unsuitable too high, otherwise will cause the decline of the performances such as the thermotolerance of material system and shock-resistance.
Polystyrene-poly iso-butylene-polystyrene block copolymer is for the processing characteristics, the elongation at break that improve system, if its content is too low play above-mentioned effect by being difficult to, therefore preferably more than 25 parts are added, but excessive interpolation will affect the rigidity requirement of system, its content therefore should be controlled below 35 parts.Meanwhile, for obtaining performances such as improving elongation at break, the content of the polystyrene in polystyrene-poly iso-butylene-polystyrene block copolymer should between 30-40%, excessive too small its performance playing optimum that is all unfavorable for.Simultaneously for not affecting intensity and the shaping outward appearance of system, its number-average molecular weight should between 100000-150000.
Magnesium sulfate crystal whisker has strengthening effect excellent especially in material system of the present invention, all more more outstanding than the strengthening effect of common mineral filler, add as 3 parts of rigidity that can significantly improve system as long as a little, but its addition is too much unsuitable, and preferably select the length of fiber to be 10-15 μm, mean diameter is the whisker of 0.5-0.8 μm, otherwise the density of system can be caused to increase and affect overall performance.Mica powder is as common mineral filler, also suitable strengthening effect is had in material system of the present invention, in order to optimize its strengthening action, length is selected to be 10-15 μm, and slenderness ratio be greater than 10 the mica powder of sheet structure, will effect more more efficiently than the such as mineral filler such as spherical calcium carbonate, aluminum oxide.Two kinds of mineral fillers add up to preferably can reach 15 parts, to give full play to strengthening effect, but also unsuitable excessive, otherwise the deficiency such as shock-resistance, processibility of system can be caused.
Oleylamide can significantly improve the scratch resistant performance of material system, the intermiscibility of material system and other resins can also be improved to a certain extent simultaneously, for the addition playing above-mentioned effect oleylamide at least should be 1 part, consider the addition of its mineral filler, it at least should be 1/10 of its addition simultaneously.But its addition is also too much unsuitable, otherwise the rigidity of system, hardness can be caused not enough.
By the macromolecular material in the present invention by precise injection molding machine injection molding, wherein injection temperature is 200 DEG C, and die temperature is 80 DEG C, can obtain the Automotive interior product of excellent performance.
To sum up, adopt material prescription system of the present invention, be aided with corresponding preparation technology, intermiscibility can be obtained good and there is the High polymer material for automotive trim product of excellent scratch resistant performance, low-temperature impact-resistant performance, and processed and be prepared as Automotive interior product.
Claims (1)
1. an Automotive interior product, is characterized in that being prepared by following macromolecular material and preparation method:
First the modified polypropylene resin of ready magnesium sulfate crystal whisker, mica powder, oleylamide and half amount is put in stirrer and is carried out pre-mixing 5min with the rotating speed of 1500rpm by the formula of foundation macromolecular material;
Subsequently by remaining modified polypropylene resin, and ethene-alpha-olefin copolymer, poly(lactic acid), polystyrene-poly iso-butylene-polystyrene block copolymer are put in stirrer, carry out mixing 10min with the rotating speed of 750rpm;
Put in twin screw extruder by the material mixed subsequently, make material carry out mixing 8min under the molten state of 220 DEG C, screw slenderness ratio is 40:1, and screw speed is 500rpm;
Extrude after mixing, cool, pelletizing, obtain macromolecular material;
By macromolecular material by precise injection molding machine injection molding, wherein injection temperature is 200 DEG C, and die temperature is 80 DEG C;
Wherein the formula of macromolecular material is, with parts by weight, modified polypropylene resin 100 parts, ethene-alpha-olefin copolymer 35-40 part, poly(lactic acid) 20-25 part, polystyrene-poly iso-butylene-polystyrene block copolymer 25-35 part, magnesium sulfate crystal whisker 3-5 part, mica powder 10-15 part, oleylamide 1-2 part;
Described modified polypropylene resin is through phenolic resin modified ethylene/propene atactic copolymerized polypropene, and wherein, in resin, the content of ethene is 7-10%, and the content of resol is 2-5%;
In described ethene-alpha-olefin copolymer, the content of ethene is 60-70%;
Described poly(lactic acid) is poly (l-lactic acid);
In described polystyrene-poly iso-butylene-polystyrene block copolymer, the content of polystyrene is 50-60%, and the scope of its number-average molecular weight is between 150000-200000;
In described magnesium sulfate crystal whisker, the length of fiber is 10-15 μm, and mean diameter is 0.5-0.8 μm;
Described mica powder is length is 10-15 μm, and slenderness ratio be greater than 10 sheet structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310541702.6A CN103554691B (en) | 2013-11-05 | 2013-11-05 | A kind of Automotive interior product |
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| CN201310541702.6A CN103554691B (en) | 2013-11-05 | 2013-11-05 | A kind of Automotive interior product |
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| CN103554691B true CN103554691B (en) | 2015-10-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103834106B (en) * | 2014-03-04 | 2016-02-17 | 芜湖市艾德森自动化设备有限公司 | A kind of fire-resistant oxidation resistant metallized film and preparation method thereof |
| CN106519472A (en) * | 2016-11-17 | 2017-03-22 | 郑州诚合信息技术有限公司 | Non-toxic and odorless automotive interior material and preparation method thereof |
| CN106883510A (en) * | 2017-02-20 | 2017-06-23 | 北京汽车股份有限公司 | Polylactic acid poly acrylic composite and its preparation method and application |
| CN107353511A (en) * | 2017-08-14 | 2017-11-17 | 华信博伟（安徽）车辆部件有限公司 | A kind of Automotive interior product and preparation method thereof |
| CN116082756A (en) * | 2023-02-07 | 2023-05-09 | 苏州恒达塑料工业有限公司 | Preparation process of automotive interior polymer material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617930A (en) * | 2012-03-23 | 2012-08-01 | 重庆嘉良塑胶制品有限责任公司 | Decorative material for automobiles and manufacturing method for decorative material |
| CN102719064A (en) * | 2012-07-04 | 2012-10-10 | 北京汽车股份有限公司 | Fully degradable automobile internal and external decoration material and preparation method and application thereof |
| CN102952336A (en) * | 2012-11-15 | 2013-03-06 | 合肥会通新材料有限公司 | Active basic magnesium sulfate whisker modified polypropylene composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100412452B1 (en) * | 2001-03-08 | 2003-12-31 | 현대자동차주식회사 | Polypropylene resin composition |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617930A (en) * | 2012-03-23 | 2012-08-01 | 重庆嘉良塑胶制品有限责任公司 | Decorative material for automobiles and manufacturing method for decorative material |
| CN102719064A (en) * | 2012-07-04 | 2012-10-10 | 北京汽车股份有限公司 | Fully degradable automobile internal and external decoration material and preparation method and application thereof |
| CN102952336A (en) * | 2012-11-15 | 2013-03-06 | 合肥会通新材料有限公司 | Active basic magnesium sulfate whisker modified polypropylene composite material and preparation method thereof |
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Effective date of registration: 20221215 Address after: No. 388, Weinan Road, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215000 Patentee after: SUZHOU HENGDA PLASTIC INDUSTRIAL CO.,LTD. Address before: No. 388, Weinan Road, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215000 Patentee before: SUZHOU WANLONG AUTO PARTS Co.,Ltd. |