CN106009254A - Automotive interior material and preparation method thereof - Google Patents
Automotive interior material and preparation method thereof Download PDFInfo
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- CN106009254A CN106009254A CN201610352436.6A CN201610352436A CN106009254A CN 106009254 A CN106009254 A CN 106009254A CN 201610352436 A CN201610352436 A CN 201610352436A CN 106009254 A CN106009254 A CN 106009254A
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- automotive interior
- interior material
- copolymer
- filler
- olefin copolymer
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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
- C08L23/12—Polypropene
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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)
Abstract
The invention relates to an automotive interior material which comprises the following components in percentage by weight: 50-70% of polypropylene resin, 10-30% of olefin copolymer, 5-15% of toughening agent, 5-10% of filler, 0.4-1% of antioxidant and 0.3-1% of lubricant. The preparation method comprises the following steps: uniformly mixing the components; and performing melt extrusion and granulation to obtain the automotive interior material. The density of the automotive interior material prepared in the invention is 0.93-0.96g/cm<3> which is reduced by 8-10% from that of existing automotive interior material. Meanwhile, the dimensional stability and mechanical property of the product can be guaranteed, the scratch resistance of the material is remarkably improved without adding a scratch-resistant agent, and the product caters to the trend of light weight and high quality of automotive interior.
Description
Technical field
The present invention relates to field of compound material, particularly to a kind of automotive interior material and preparation method thereof.
Background technology
Car interior trim comfort level has become as the second largest factor that consumer selects to consider during new car, comes outside vehicle
Before seeing design, it is only second to reliability and the robustness of automobile.Along with car conour tends to motion and fashion
Homogenization trend increasingly severe, the trial of strength of Automobile Design is fought in different parts the trial of strength of interior design already.Use complete
Technology and the tone assembling automobile of fashion that new material is advanced have become as necessarily becoming of world car development
Gesture.
Polypropylene has that chemical proofing is good, cost performance is high and is easy to the features such as recycling, in being automobile
The main selection of exterior material.As automobile polypropylene mainly by adding Pulvis Talci in pp material
Deng filler, improve rigidity and the dimensional stability of product, add toughener to improve the toughness of product, automobile
The material that interior trim is conventional is the mixture being made up of the Pulvis Talci of polypropylene, ethylene propylene diene rubber and 20%
(PP+EPDM-TD20), density is 1.04g/cm3.The shortcoming of this material is that filler interpolation is more, its
The density of material is increased while improving polypropylene material rigidity and dimensional stability.
Light weight and exquisiteness are the major trends of Hyundai Motor development, reduce the polyacrylic density of automotive trim with
Improve scraping and wiping resistance performance and become inevitable.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of automotive interior material its preparation method, this material chi
Very little stable, low-density, scratch-resistant and the composite request of excellent in mechanical performance.
The invention discloses a kind of automotive interior material, including the component of following weight portion:
Described olefin copolymer is propylene and the copolymer of ethylene or the copolymer of ethylene, propylene and butylene.
Preferably, toner 0.5～2wt% is also included.
Preferably, the shrinkage factor of described olefin copolymer is 0.5～1%.
Preferably, including olefin copolymer 15～25wt%.
Preferably, described acrylic resin is the polypropylene of high flowing, and melt index is more than 30g/10min.
Preferably, described toughener is ethylene propylene diene rubber or POE.
Preferably, described filler is Pulvis Talci, wollastonite, Muscovitum or whisker.
Preferably, described filler is Pulvis Talci, and described talcous granularity is 3000～5000 mesh, loss on ignition
≤ 95%, silicone content >=60%.
The invention also discloses the preparation method of a kind of automotive interior material, comprise the following steps:
By 50～70wt% acrylic resins, 10～30wt% olefin copolymers, 5～15wt% toughener, 5～10
Wt% filler, 0.4～1wt% antioxidant, 0.3～1wt% mix lubricant is uniform, then through melt extruding,
Pelletize, it is thus achieved that automotive interior material；
Described olefin copolymer is propylene and the copolymer of ethylene or the copolymer of ethylene, propylene and butylene.
Preferably, using double screw extruder to extrude, the temperature of described extrusion is 180 DEG C～210 DEG C,
Screw speed is 200～450 turns/min, and vacuum is-0.03～-0.06Mpa.
Compared with prior art, the automotive interior material of the present invention, including the component of following weight portion:
50～70wt% acrylic resins, 10～30wt% olefin copolymers, 5～15wt% toughener, 5～10wt%
Filler, 0.4～1wt% antioxidant, 0.3～1wt% lubricant.The present invention adds the alkene of low-shrinkage altogether
Polymers, coordinates a small amount of filler simultaneously, it is possible in the case of low sizing content, meets automotive trim to material
Shrinkage factor and the requirement of rigidity, will not cause the poor dimensional stability produced because of the reduction of filer content, just
Property decline and the problem such as surface shrink mark, density of material is 0.93-0.96g/cm3, with traditional
PP+EPDM-TD20 phase specific density reduces 8-10%.The consumption being additionally, since filler is less, can improve
The scraping whiting of material, improves the scraping and wiping resistance performance of material, it is to avoid prior art is for improving scraping and wiping resistance performance
The hydraulic performance decline that brings of scratch-resistant auxiliary agent and the tacky problem of product is added in formula.
Detailed description of the invention
In order to be further appreciated by the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described,
It is understood that these describe simply for further illustrating the features and advantages of the present invention rather than to this
The restriction of invention claim.
The invention discloses a kind of automotive interior material, including the component of following weight portion:
Described olefin copolymer is propylene and the copolymer of ethylene or the copolymer of ethylene, propylene and butylene.
The present invention is by adding special olefin copolymer, and coordinates other components, reduces containing of filler
Amount, it is ensured that the shrinkage factor of interior material and rigid demand, reduces the density of interior material, in improve
The scraping and wiping resistance performance of exterior material.
According to the present invention, the acrylic resin used is not particularly limited, according to people in the art
The polypropylene material making automotive trim that member is conventional.According to a particular embodiment of the invention, described poly-
Allyl resin preferably acrylic resin is the polypropylene of high flowing, and melt index is more than 30g/10min.By
This, preferably can coordinate with olefin copolymer and other components, play preferable performance.Described poly-third
The addition of olefine resin is 50～70wt%；In certain embodiments, the addition of described acrylic resin is
58～68wt%.
According to the present invention, crucial addO-on therapy is olefin copolymer, and described olefin copolymer is propylene and second
The copolymer of alkene or the copolymer of ethylene, propylene and butylene.The shrinkage factor of described olefin copolymer is preferably
0.5～1%, more elect 0.6～0.8% as.The interpolation of described olefin copolymer, directly reduces adding of filler
Dosage, it is ensured that while the various required performances of automotive interior material, such as rigidity and stability are preferable,
Reduce the density of automotive interior material.The present invention is not particularly limited for the source of described olefin copolymer,
Commercially available prod.The addition of described olefin copolymer is 10～30wt%, adds in certain embodiments
Amount is 15～25wt%, and in other embodiment, addition is 20～23wt%.
According to the present invention, described toughener is preferably ethylene propylene diene rubber or POE.The present invention
Other toughener that other this areas are conventional can also be used.The addition of described toughener is 5～15wt%,
Addition is 7～10wt% in certain embodiments.
According to the present invention, described filler can be Pulvis Talci, wollastonite, Muscovitum or whisker；It is preferably described
Filler is Pulvis Talci, and described talcous granularity is 3000～5000 mesh, loss on ignition≤95%, silicone content >=
60%.What the Pulvis Talci of described performance can add merges with other components, although its addition is than existing skill
Art is compared less, but remains able to the rigidity maintaining automotive interior material to need.The addition of described filler
5～10wt%；In certain embodiments, the addition of described filler is 7～9wt%.
According to the present invention, the kind of described antioxidant is unrestricted, can be antioxidant commonly used in the art,
It is preferably Hinered phenols antioxidant and the mixture of phosphite ester kind antioxidant.Hinered phenols antioxidant is preferably
Antioxidant 1010, phosphite ester kind antioxidant is preferably irgasfos 168, Hinered phenols antioxidant and phosphorous acid
The mass ratio of esters antioxidant is preferably 1:2.In the present invention, the addition of described antioxidant is 0.4～1
Wt%；In certain embodiments, the addition of described antioxidant is 0.6～0.8wt%.
According to the present invention, described lubricant is preferably the lubricant of stearic acid, in certain embodiments, more
It is preferably calcium stearate or zinc stearate.The addition of described lubricant is 0.3～1wt%, implements at some
In example, the addition of described lubricant is 0.5～0.8wt%.
According to the present invention.In order to regulate the color of automotive trim, interior material is made to match with automobile entirety.
Toner can also be added in the material.Described toner can be white carbon black, titanium dioxide and other tonings being suitable for
Material.In certain embodiments, the addition of described toner is 0.5～2wt%.In other embodiment
In, the addition of described toner is 0.6～1wt%.
The invention also discloses the preparation method of a kind of automotive interior material, comprise the following steps:
By 50～70wt% acrylic resins, 10～30wt% olefin copolymers, 5～15wt% toughener, 5～10
Wt% filler, 0.4～1wt% antioxidant, 0.3～1wt% mix lubricant is uniform, then through melt extruding,
Pelletize, it is thus achieved that automotive interior material；
Described olefin copolymer is propylene and the copolymer of ethylene or the copolymer of ethylene, propylene and butylene.
In the preparation method of the automotive interior material of the present invention, use the component arrived and content thereof in above-mentioned skill
Art scheme describes clear, do not repeated them here.According to the preparation method of the present invention, by said components
Proportionally mix homogeneously, it is preferred that except acrylic resin, olefin copolymer, toughener, filler, resist
Also including toner outside oxygen agent and lubricant, the addition of described toner is 0.5～2wt%.By toner and other
Component is mixed together uniformly.By the mixture of mix homogeneously through melt extruding, pelletize, vapour can be obtained
Train number interior material, meets the composite request of automotive upholstery.
According to the present invention, it is preferred that using double screw extruder to extrude, the temperature of described extrusion is preferred
Being 180 DEG C～210 DEG C, screw speed is preferably 200～450 turns/min, and vacuum is preferably
-0.03～-0.06Mpa.
The performance of the automotive interior material preparing the present invention is tested, and result of the test shows, described automobile
The density of interior material is less than 1g/cm3, hot strength, bending strength, bending modulus, shrinkage factor are all with existing
There is automotive interior material similar.Scratch-resistant is tested by BAS-354, and load is 10N, by measuring
The Δ L of material surface passes judgment on its scraping and wiping resistance performance, and the numerical value of Δ L is 0.8～1.1.
In order to be further appreciated by the present invention, the automotive interior material that the present invention provided below in conjunction with embodiment and
Its preparation method is described in detail, and protection scope of the present invention is not limited by the following examples.
Embodiment 1
The component of the automotive interior material of the present embodiment and weight percentage thereof be:
Wherein, polypropylene is the polypropylene of high flowing, and olefin copolymer is ethylene propylene copolymer, ethylene propylene
The shrinkage factor of alkene copolymer is 0.6%, and filler is the Pulvis Talci of 4000 mesh, loss on ignition≤95%, silicone content
>=60%；Toughener is POE POE, antioxidant be 1010 and 168 compound, mass ratio
For 1:2, lubricant is calcium stearate, and toner is white carbon black.
By above-mentioned acrylic resin, olefin copolymer, filler, toughener, antioxidant, lubricant and toner
Mixing 5～8 minutes in high-speed mixer, the rotating speed of high mixer is 800 revs/min, then by mixed former
Material is placed in double screw extruder through melted, pelletize, and its expressing technique is: a district 180～190 DEG C, 2nd district
190-200 DEG C, three districts 190～200 DEG C, four districts 185～195 DEG C, screw speed is 300～400 revs/min,
Vacuum is-0.05～-0.06Mpa.
Embodiment 2
The component of the automotive interior material of the present embodiment and weight percentage thereof be:
Wherein, polypropylene is the polypropylene of high flowing, and olefin copolymer is ethylene propylene copolymer, ethylene propylene
The shrinkage factor of alkene copolymer is 0.7%, and filler is the Pulvis Talci of 4000 mesh, loss on ignition≤95%, silicone content
>=60%；Toughener is ethylene propylene diene rubber, antioxidant be 1010 and 168 compound, mass ratio is 1:2,
Lubricant is calcium stearate, and toner is white carbon black.
By above-mentioned acrylic resin, olefin copolymer, filler, toughener, antioxidant, lubricant and toner
Mixing 5～8 minutes in high-speed mixer, the rotating speed of high mixer is 800 revs/min, then by mixed former
Material is placed in double screw extruder through melted, pelletize, and its expressing technique is: a district 180～190 DEG C, 2nd district
190-200 DEG C, three districts 190～200 DEG C, four districts 185～195 DEG C, screw speed is 300～400 revs/min,
Vacuum is-0.05～-0.06Mpa.
Embodiment 3
The component of the automotive interior material of the present embodiment and weight percentage thereof be:
Wherein, polypropylene is the polypropylene of high flowing, and olefin copolymer is ethylene, propylene butylene copolymer, second
The shrinkage factor of allyl alkene butylene copolymer is 0.6%, and filler is the Pulvis Talci of 4000 mesh, loss on ignition≤95%,
Silicone content >=60%；Toughener is POE, antioxidant be 1010 and 168 compound, mass ratio is 1:2, profit
Lubrication prescription is calcium stearate, and toner is white carbon black.
By above-mentioned acrylic resin, olefin copolymer, filler, toughener, antioxidant, lubricant and toner
Mixing 5～8 minutes in high-speed mixer, the rotating speed of high mixer is 800 revs/min, then by mixed former
Material is placed in double screw extruder through melted, pelletize, and its expressing technique is: a district 180～190 DEG C, 2nd district
190-200 DEG C, three districts 190～200 DEG C, four districts 185～195 DEG C, screw speed is 300～400 revs/min,
Vacuum is-0.05～-0.06Mpa.
Comparative example 1
The component of the automotive interior material of the present embodiment and weight percentage thereof be:
Wherein, polypropylene is the polypropylene of high flowing, and filler is the Pulvis Talci of 2000 mesh, and toughener is POE,
Antioxidant be 1010 and 168 compound, mass ratio is 1:2, and lubricant is calcium stearate, and toner is white carbon black.
By above-mentioned acrylic resin, filler, toughener, antioxidant, lubricant and toner at high-speed mixer
Middle mixing 5～8 minutes, the rotating speed of high mixer is 800 revs/min, then mixed raw material is placed in twin screw
Through melted, pelletize in extruder, its expressing technique is: a district 180～190 DEG C, two 190-200 DEG C of districts,
Three districts 190～200 DEG C, four districts 185～195 DEG C, screw speed is 300～400 revs/min, and vacuum is
-0.05～-0.06Mpa.
Said method is completed the automotive trim polypropylene material of pelletize at 80～90 DEG C, toasts 2 hours, so
After dried particle is molded by standard testing batten on injection moulding machine.
Density detects according to GB/T1033.1-2008 standard, and hot strength presses GB/T1040.2-2006
Standard detects, batten size (mm): 180 × 10 × 4, and draw speed is 50mm/min；Bending
Intensity and bending modulus press GB/T9341-2008, batten size (mm): 80 × 10 × 4, rate of bending
For 20mm/min；Notch impact strength is detected by GB/T1843-2008 standard, batten size (mm):
80 × 10 × 4, residue breach thickness is 2mm；Scratch-resistant is tested by BAS-354, and load is 10N,
Passing judgment on its scraping and wiping resistance performance by measuring the Δ L of material surface, the numerical value of Δ L is the least, represents material
Scraping and wiping resistance performance is the best；Shrinkage factor is tested according to GB/T 15585-1995；The combination property of material is by surveying
Density obtained by examination, hot strength, bending strength, bending modulus, Izod notched impact strength, resistance to
Scratch performance and shrinkage factor are passed judgment on.Polypropylene prepared by embodiment 1 to embodiment 3 and comparative example 1
The performance characterization of automotive trim material is shown in Table 1.
The performance characterization of the polypropylene automotive interior material prepared by table 1 embodiment 1 to embodiment 3 and comparative example 1
The explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.Should refer to
Go out, for those skilled in the art, under the premise without departing from the principles of the invention, also
The present invention can be carried out some improvement and modification, these improve and modify and also fall into the claims in the present invention
In protection domain.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this
Invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art,
Generic principles defined herein can without departing from the spirit or scope of the present invention, at other
Embodiment realizes.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is intended to
Meet the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. an automotive interior material, including the component of following weight portion:
Described olefin copolymer is propylene and the copolymer of ethylene or the copolymer of ethylene, propylene and butylene.
Automotive interior material the most according to claim 1, it is characterised in that also include toner 0.5～2
Wt%.
Automotive interior material the most according to claim 2, it is characterised in that described olefin copolymer
Shrinkage factor be 0.5～1%.
Automotive interior material the most according to claim 3, it is characterised in that include olefin copolymer
15～25wt%.
Automotive interior material the most according to claim 2, it is characterised in that described acrylic resin
For the polypropylene of height flowing, melt index is more than 30g/10min.
Automotive interior material the most according to claim 2, it is characterised in that described toughener is three
Unit's EP rubbers or POE.
Automotive interior material the most according to claim 2, it is characterised in that described filler is Talcum
Powder, wollastonite, Muscovitum or whisker.
Automotive interior material the most according to claim 7, it is characterised in that described filler is Talcum
Powder, described talcous granularity is 3000～5000 mesh, loss on ignition≤95%, silicone content >=60%.
9. a preparation method for automotive interior material, comprises the following steps:
By 50～70wt% acrylic resins, 10～30wt% olefin copolymers, 5～15wt% toughener, 5～10
Wt% filler, 0.4～1wt% antioxidant, 0.3～1wt% mix lubricant is uniform, then through melt extruding,
Pelletize, it is thus achieved that automotive interior material；
Described olefin copolymer is propylene and the copolymer of ethylene or the copolymer of ethylene, propylene and butylene.
Preparation method the most according to claim 9, it is characterised in that use double screw extruder to enter
Row extrusion, the temperature of described extrusion is 180 DEG C～210 DEG C, and screw speed is 200～450 turns/min, vacuum
Degree is for-0.03～-0.06Mpa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610352436.6A CN106009254B (en) | 2016-05-25 | 2016-05-25 | A kind of automotive interior material and preparation method thereof |
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| CN201610352436.6A CN106009254B (en) | 2016-05-25 | 2016-05-25 | A kind of automotive interior material and preparation method thereof |
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| CN106009254B CN106009254B (en) | 2018-09-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751057A (en) * | 2016-11-17 | 2017-05-31 | 郑州诚合信息技术有限公司 | A kind of automotive clear ornament materials and preparation method thereof |
| CN107266769A (en) * | 2017-07-21 | 2017-10-20 | 安徽江淮汽车集团股份有限公司 | It is a kind of by mica powder be high temperature resistant agent polyolefin |
| CN113071171A (en) * | 2020-12-25 | 2021-07-06 | 加通汽车内饰(常熟)有限公司 | Light-permeable composite structure and preparation process thereof |
-
2016
- 2016-05-25 CN CN201610352436.6A patent/CN106009254B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751057A (en) * | 2016-11-17 | 2017-05-31 | 郑州诚合信息技术有限公司 | A kind of automotive clear ornament materials and preparation method thereof |
| CN107266769A (en) * | 2017-07-21 | 2017-10-20 | 安徽江淮汽车集团股份有限公司 | It is a kind of by mica powder be high temperature resistant agent polyolefin |
| CN113071171A (en) * | 2020-12-25 | 2021-07-06 | 加通汽车内饰(常熟)有限公司 | Light-permeable composite structure and preparation process thereof |
| CN113071171B (en) * | 2020-12-25 | 2022-04-01 | 加通汽车内饰(常熟)有限公司 | Light-permeable composite structure and preparation process thereof |
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| CN106009254B (en) | 2018-09-21 |
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Effective date of registration: 20190415 Address after: No.1 Tongxin Road, Zhaoquanying Town Zhaofeng Industrial Base, Shunyi District, Beijing 100130 Patentee after: Beijing automobile group cross-country car Co., Ltd. Address before: 101300 99 Shuanghe street, Renhe Town, Shunyi District, Beijing Patentee before: Beijing Automobile Research General Institute Co., Ltd. |