CN106832590A - A kind of wear-resisting, high temperature resistant exempts from air bag frame material of spraying and preparation method thereof - Google Patents
A kind of wear-resisting, high temperature resistant exempts from air bag frame material of spraying and preparation method thereof Download PDFInfo
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- CN106832590A CN106832590A CN201710113585.1A CN201710113585A CN106832590A CN 106832590 A CN106832590 A CN 106832590A CN 201710113585 A CN201710113585 A CN 201710113585A CN 106832590 A CN106832590 A CN 106832590A
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- weight portions
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- air bag
- polypropylene
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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 a kind of wear-resisting, high temperature resistant, exempt from spraying air bag frame material, and preparation method thereof, the material includes EPDM, the polypropylene of 40 weight portions, the paraffin oil of 15 weight portions, 25 polyolefin elastomers, the vulcanizing agent of 2 weight portions, the antioxidant of 1 weight portion, the anti-wear agent of 2 weight portions of 15 weight portions.The preparation method mainly includes the reconstruction of high temperature kneading, dynamic vulcanization and second order, and modified abrasion resistant agent is increased during dynamic vulcanization, and dyestuff is added in secondary rebuilding course.Automotive airbag frame proprietary material of the invention is wear-resisting, and resistance to elevated temperatures is good, is not required to spraying, and good moldability is conducive to client to save human and material resources, financial resources.
Description
Technical field
The present invention relates to thermoplastic vulcanizate material production and its blend modification technology field, one kind is particularly related to
Wear-resisting, high temperature resistant, the air bag frame material for exempting from spraying and preparation method thereof.
Background technology
Current automobile industry is developed rapidly, and people increasingly attract attention for the security performance of automobile, Automobile air
Capsule inframe multiplies safe automobile air bag, and when there is traffic accident, air bag emergency opening simultaneously penetrates air bag frame reduction seating
The wound of the head of personnel.Therefore, air bag frame material not only needs low temperature（-35℃）When ensure enough toughness, air bag explosion
When prevent the fragment of air bag frame material from hurting sb.'s feelings, in addition it is also necessary in high temperature（85℃）It is to ensure certain rigidity, can not allows in air bag
Occurring tear during explosion excessively causes secondary injury.Existing air bag frame tear-proof, scratch resistant performance are limited, some air bag frames
Also use effect poor, certain injury is easily produced to driver.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of wear-resisting, high temperature resistant, exempts from the air bag frame material and its system of spraying
Preparation Method, the wearability that makes material is good, resistance to elevated temperatures is good, and is not required to spraying, environmental protection more convenient to use.
To solve the above problems, the present invention provides a kind of wear-resisting, high temperature resistant, exempts from the air bag frame material of spraying, including as follows
Component：
EPDM 10-20 weight portions
Polypropylene 40-50 weight portions
Paraffin oil 10-20 weight portions
Polyolefin elastomer 20-30 weight portions
Vulcanizing agent 1-3 weight portions
Antioxidant 0.5-1.0 weight portions
Anti-wear agent 1-3 weight portions.
Further, described EPDM is the EPDM of the HMW of molecular weight >=300,000, and its Mooney viscosity is 90, described
Polypropylene be high melt strength, propylene, high flow polypropylene one or several, described paraffin oil is high for environment-friendly type
Viscosity, high-flash paraffin oil, when its kinematic viscosity is 40 DEG C >=500mm2/s, flash-point >=280 DEG C, described polyolefin elastomer
For ethene-pungent dilute block type copolymer, ethene-pungent dilute random copolymer one or several, described anti-wear agent is two
Section graft reaction type anti-wear agent, is modified polyethylene wax, modified siloxane, modified erucyl amide, one kind of modified oleamide
Or it is several, described antioxidant is phenolic material 1010,168, efficient acid-acceptor one or several.
The present invention also provide above-mentioned wear-resisting, high temperature resistant, exempt from spraying air bag frame material preparation method, it is characterised in that
Comprise the following steps：
A. high temperature kneading：EPDM, polypropylene segment, paraffin oil, antioxidant are carried out into melt blending at high operating temperatures, in kneading
Mixing 20-40 minutes, then carries out extruding pelletization by single screw extrusion machine in machine；
B. dynamic vulcanization：Above-mentioned semi-finished product particle, anti-wear agent, vulcanizing agent are fed by different weight-loss metering scales respectively
In double screw extruder, in 300-500 revs/min of main frame, melt temperature is to carry out dynamic vulcanization 2-3 under conditions of 180-220 DEG C
Minute, cause particle；
C. second order is modified：Above-mentioned particle, remaining polypropylene, antioxidant, pigment blending are fed in double screw extruder, in master
250-450 revs/min of machine, melt temperature is extruding pelletization under conditions of 170-185 DEG C；
Wherein, the polypropylene for being added in step A is the 60%-70% of polypropylene gross mass.
Further, described double screw extruder is in high shear high length-diameter ratio, middle shearing high length-diameter ratio or low sheraing
Draw ratio extruder.
After such design, the present invention at least has advantages below：
Present invention introduces the process of dynamic vulcanization, make to contain cross-linked structure in final products, vulcanization object EPDM is supra polymer
Amount EPDM, greatly strengthen the low-temperature flexibility and high temperature rigid of product；Modified grafting anti-wear agent is introduced in sulfidation, is participated in
During dynamic vulcanization, in EPDM dynamic crosslinkings and during forming dispersed phase, positioned at two sections of grafting organic group of anti-wear agent
It is anchored in PP continuous phases, the wear-resistant macromolecule chain positioned at stage casing is distributed in material surface, increases wearability and the processing of material
Performance；In addition, adding the outward appearance of pigment improvement product in the second order granulation process of product so that material is not required to spraying.
Automotive airbag frame proprietary material of the invention is wear-resisting, and resistance to elevated temperatures is good, beautiful appearance, good moldability, more favorably
Human and material resources, financial resources are saved in client, automotive interior air bag frame material is particularly suited for.
Specific embodiment
Embodiment 1
The present embodiment provides a kind of wear-resisting, high temperature resistant, exempts from the air bag frame material of spraying, including 15 weight portions EPDM, 40 weight
The polypropylene, the paraffin oil of 15 weight portions, 25 polyolefin elastomers, the vulcanizing agent of 2 weight portions, the antioxidant of 1 weight portion, 2 of part
The anti-wear agent of weight portion, wherein, described EPDM is the EPDM of super high molecular weight, and its Mooney viscosity is 90+, described polypropylene
For high melt strength, propylene, high flow polypropylene one or several, described paraffin oil is environmental protection type high viscosity degree, high dodge
Point paraffin oil, described polyolefin elastomer is ethene-pungent dilute block type copolymer, the one of ethene-pungent dilute random copolymer
Plant or several, described anti-wear agent is two sections of graft reaction type anti-wear agents, be modified polyethylene wax, modified siloxane, be modified
Erucyl amide, modified oleamide one or several, described antioxidant is phenolic material 1010,168, efficient acid-acceptor
One or several.
The present embodiment also provide above-mentioned wear-resisting, high temperature resistant, exempt from spraying air bag frame material preparation method, including following step
Suddenly：
A. high temperature kneading：EPDM, polypropylene segment, paraffin oil, antioxidant are carried out into melt blending at high operating temperatures, in kneading
Mixing 20-40 minutes, then carries out extruding pelletization by single screw extrusion machine in machine；
B. dynamic vulcanization：Above-mentioned semi-finished product particle, anti-wear agent, vulcanizing agent are fed by different weight-loss metering scales respectively double
In screw extruder, in 300-500 revs/min of main frame, melt temperature is to carry out dynamic vulcanization 2-3 points under conditions of 180-220 DEG C
Clock, causes particle；
C. second order is modified：Above-mentioned particle, remaining polypropylene, antioxidant, pigment blending are fed in double screw extruder, in master
250-450 revs/min of machine, melt temperature is extruding pelletization under conditions of 170-185 DEG C.
Double screw extruder is high shear high length-diameter ratio, middle shearing high length-diameter ratio or draw ratio in low sheraing in the present embodiment
One or more in double screw extruder.
Present invention introduces the process of dynamic vulcanization, make to contain cross-linked structure in final products, vulcanization object EPTM is superelevation
Molecular weight EPDM, greatly strengthen the low-temperature flexibility and high temperature rigid of product；Modified grafting anti-wear agent, ginseng are introduced in sulfidation
With to during dynamic vulcanization, it is organic positioned at two sections of grafting of anti-wear agent in EPDM dynamic crosslinkings and during forming dispersed phase
Group is anchored in PP continuous phases, and the wear-resistant macromolecule chain positioned at stage casing is distributed in material surface, increase material wearability and
Processing characteristics.
Embodiment 2
The main distinction part of the present embodiment and embodiment 1 is, described EPDM is that 10 weight portions, described polypropylene are
40 weight portions, described paraffin oil are that 15 weight portions, described polyolefin elastomer are that 30 weight portions, described vulcanizing agent are 2
Weight portion, described antioxidant be 1 weight portion, described anti-wear agent be 2 weight portions.
Embodiment 3
The main distinction part of the present embodiment and embodiment 1 is, described EPDM is that 20 weight portions, described polypropylene are
40 weight portions, described paraffin oil are that 15 weight portions, described polyolefin elastomer are that 20 weight portions, described vulcanizing agent are 2
Weight portion, described antioxidant be 1 weight portion, described anti-wear agent be 2 weight portions.
Embodiment 4
Choose EPDM, the polypropylene of 40 weight portions, the paraffin oil of 15 weight portions, 25 polyolefin elastomers, 2 weight of 15 weight portions
The vulcanizing agent, the antioxidant of 1 weight portion, the anti-wear agent of 2 weight portions of part, wherein, described EPDM is the EPDM of convenient molecular weight,
Its Mooney viscosity is 35-55, process such as embodiment 1
One group of comparative experimental example is set forth below to illustrate beneficial effects of the present invention.
Comparative example 1
Selection polypropylene is 40 weight portions, polyolefin elastomer is 57 weight portions, antioxidant is 1 weight portion, anti-wear agent is 2 weights
Amount part.
Said components are fed in double screw extruders by different weight-loss metering scales, in 300-500 revs/min of main frame,
Melt temperature be 180-220 DEG C under conditions of carry out extruding pelletization.
The properties of product test that above-described embodiment 1-4 and comparative example 1 are produced, as a result such as following table：
Table 1
Note：Experimental technique uses Volkswagen's experimental technique.
As can be seen that through the air bag frame PP Pipe Compound tensile strength after present invention improvement from properties of product test result table
Height, tear-proof, scratch resistant performance and notched impact properties are superior to the TPO air bag frames using the comparative example 1 of conventionally manufactured mode
The performance of material, wherein embodiment 2, embodiment 3 and embodiment 4 are to employ the product for being partially improved and being obtained after mode of the invention
Product, its characteristic in one aspect also has a clear superiority compared with traditional approach, in sum, is prepared using the method for the present invention
There is automobile air bag frame PP Pipe Compound wear-resisting, high temperature resistant to exempt from the good characteristic of spraying, and properties of product are substantially better than traditional processing work
Skill, is worthy to be popularized.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (2)
1. it is a kind of exempt from spraying air bag cover material and preparation method, it is characterised in that the EPDM including 20-30 weight portions, 30-40
The high rigidity of weight portion, high crystalline, high-flowability polypropylene, 20-30 parts of low melt index atactic copolymerized polypropene, 10-20
The paraffin oil of weight portion, the vulcanizing agent of 0.5-1.0 weight portions（Relative to rubber content）, the antioxidant of 0.5-1.0 weight portions（Phase
For rubber and polypropylene content）.
2. it is according to claim 1 it is a kind of exempt from spraying air bag cover material and preparation method, it is characterised in that its feature exists
In comprising the following steps：
A. high temperature kneading：EPDM, polypropylene, paraffin oil, antioxidant are carried out into melt blending at high operating temperatures, in masticator
Mixing 20-40 minutes, then carries out extruding pelletization by single screw extrusion machine, standby；
B. dynamic vulcanization：Above-mentioned semi-finished product particle, vulcanizing agent are fed into twin-screw by different weight-loss metering scales respectively to squeeze
Go out in machine, in 300-500 revs/min of main frame, melt temperature is to carry out dynamic vulcanization 2-3 minutes under conditions of 180-220 DEG C, is caused
Particle；
C. second order is modified：Above-mentioned particle, polypropylene, antioxidant, pigment blending are fed in double screw extruder, in main frame 250-
450 revs/min, melt temperature is extruding pelletization under conditions of 170-185 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113585.1A CN106832590A (en) | 2017-02-28 | 2017-02-28 | A kind of wear-resisting, high temperature resistant exempts from air bag frame material of spraying and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113585.1A CN106832590A (en) | 2017-02-28 | 2017-02-28 | A kind of wear-resisting, high temperature resistant exempts from air bag frame material of spraying and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106832590A true CN106832590A (en) | 2017-06-13 |
Family
ID=59137752
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710113585.1A Pending CN106832590A (en) | 2017-02-28 | 2017-02-28 | A kind of wear-resisting, high temperature resistant exempts from air bag frame material of spraying and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795105A (en) * | 2020-12-30 | 2021-05-14 | 金发科技股份有限公司 | High-fluidity scratch-resistant TPV material and preparation method and application thereof |
| CN112812448A (en) * | 2020-12-30 | 2021-05-18 | 宁波博思特高分子材料科技有限公司 | Wear-resistant TPV material and preparation method thereof |
| CN115260653A (en) * | 2022-08-16 | 2022-11-01 | 山东道恩高分子材料股份有限公司 | Low-temperature-resistant TPO material for automobile safety airbag cover |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104448543A (en) * | 2013-09-16 | 2015-03-25 | 山东道恩高分子材料股份有限公司 | TPV material for car interior skin and processing method of TPV material |
| CN105385044A (en) * | 2015-10-27 | 2016-03-09 | 嘉兴市博尔塑胶有限公司 | TPV (Thermoplastic Vulcanizate) for automobile safety airbag cover material and preparation method for TPV |
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| CN104448543A (en) * | 2013-09-16 | 2015-03-25 | 山东道恩高分子材料股份有限公司 | TPV material for car interior skin and processing method of TPV material |
| CN105385044A (en) * | 2015-10-27 | 2016-03-09 | 嘉兴市博尔塑胶有限公司 | TPV (Thermoplastic Vulcanizate) for automobile safety airbag cover material and preparation method for TPV |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795105A (en) * | 2020-12-30 | 2021-05-14 | 金发科技股份有限公司 | High-fluidity scratch-resistant TPV material and preparation method and application thereof |
| CN112812448A (en) * | 2020-12-30 | 2021-05-18 | 宁波博思特高分子材料科技有限公司 | Wear-resistant TPV material and preparation method thereof |
| CN115260653A (en) * | 2022-08-16 | 2022-11-01 | 山东道恩高分子材料股份有限公司 | Low-temperature-resistant TPO material for automobile safety airbag cover |
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Application publication date: 20170613 |