CN104059287B - A kind of special continuous long glass fiber reinforced profax compound of safe automobile air bag frame and preparation method thereof - Google Patents
A kind of special continuous long glass fiber reinforced profax compound of safe automobile air bag frame and preparation method thereof Download PDFInfo
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- CN104059287B CN104059287B CN201310096421.4A CN201310096421A CN104059287B CN 104059287 B CN104059287 B CN 104059287B CN 201310096421 A CN201310096421 A CN 201310096421A CN 104059287 B CN104059287 B CN 104059287B
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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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- 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
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- 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
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- 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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- C08L2205/00—Polymer mixtures characterised by other features
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- 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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- C—CHEMISTRY; METALLURGY
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Abstract
The invention discloses special continuous long glass fiber reinforced profax compounds of a kind of safe automobile air bag frame and preparation method thereof, using polypropylene, continuous long glass fiber, heat stabilizer, the special nucleating agent of polypropylene, toughener, the special continuous long glass fiber reinforced profax of safe automobile air bag frame of preparation（LFTPP）Compound solves the defect of LFTPP low temperature impact properties differences.To solve the problems, such as that toughener viscosity height is unfavorable for glass infiltration, the present invention uses the bis- infiltration die process of LFT, infiltration of the polypropylene to continuous long glass fiber is realized i.e. in first step high-temperature fusant die head, and the cladding of thermoplastic elastomer (TPE) and polypropylene segment is realized in second step low-temperature melt slot.Material of the present invention has excellent high temperature rigid and low-temperature flexibility, dimensional stability, heat resistance, durability, meets requirement of the safe automobile air bag frame to material.
Description
Technical field
The present invention relates to a kind of special continuous long glass fiber reinforced profaxes of safe automobile air bag frame（LFTPP）Compound
And preparation method thereof, belong to high molecular material and its processing and forming field.
Background technology
Safe automobile air bag frame plays a part of bearing automobile air bag, ensures that in case of emergency air bag is quick-fried
It is not destroyed when going out.Generally main engine plants' regulation air bag frame will can guarantee not chipping when -35 DEG C of air bags are produced,
85 DEG C of air bags do not deform when producing.Therefore, requirement of the air bag frame to material property is high, should ensure material
With excellent dimensional stability, excellent durability, while also to ensure the high temperature rigid and low-temperature flexibility of material.
Current air bag frame material mainly uses the glass fiber enhanced nylon of thermoplastic elastomer toughening（PA+EPDM-
GF）.Nylon material needs to add a large amount of thermoplastic elastomer (TPE), but nylon material has since toughness at low temperature is poor
Water absorption rate height leads to the critical defect that dimensional stability is deteriorated, while nylon material holds at high price in recent years, limits
Its application on auto parts and components.
Since engineering plastics are expensive, continuous long glass fiber reinforced profax in recent years（LFTPP）In zero, automobile
Part Material Field have developed rapidly, and have the tendency that gradual Replacing engineering plastics.But the LFTPP poor limitations of impact property at low temperature
Its application on air bag frame.
Invention content
The object of the present invention is to provide a kind of special continuous long glass fiber reinforced profaxes of safe automobile air bag frame
（LFTPP）Compound and preparation method thereof meets the development of safe automobile air bag frame material to overcome defect of the existing technology
Needs.
In order to achieve the above object, the present invention provides a kind of special continuous long glass fiber enhancings of safe automobile air bag frame
Polypropylene（LFTPP）Compound, which is characterized in that be grouped as by following group by weight percentage：
Polypropylene 36-76%；
Heat stabilizer 0-2%；
The special nucleating agent 0-2% of polypropylene；
Compatilizer 2-10%；
Toughener 2-10%；
Continuous long glass fiber 20-40%.
Preferably, the polypropylene is selected from homopolymerization, the copolymer polypropylene etc. that melt flow rate (MFR) is 10~1000g/10min
Or mixtures thereof one kind.
Preferably, the heat stabilizer is phenols, amine, phosphorous acid esters, half Hinered phenols, acryloyl group functional group
With any one or a few the mixture in the compound species and calixarenes of monothioester.
Preferably, the special nucleating agent of the polypropylene be selected from superfine talcum powder, glucitols, organic phosphate one
Kind or its mixture.
Preferably, the compatilizer is selected from polar monomer graft polypropylene, and polar monomer is selected from maleic anhydride and its class
Like object (such as fumaric acid, itaconic acid, citraconic acid, citraconic anhydride and vinyl succinic anhydride), acrylicacidandesters analog derivative
(such as acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, glycidyl third
Ester etc.) in or mixtures thereof one kind.
Preferably, the toughener is selected from polar monomer graft thermoplastic elastomer (TPE).Wherein, polar monomer is selected from Malaysia
Acid anhydrides and the like (such as fumaric acid, itaconic acid, citraconic acid, citraconic anhydride and vinyl succinic anhydride), acrylic acid and its
Ester derivative (such as acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, methyl-prop
Olefin(e) acid polyglycidyl etc.) in or mixtures thereof one kind；Thermoplastic elastomer (TPE) is selected from ethylene-alpha-octylene copolymers, styrene-fourth
Styrene triblock copolymer, hydrogenated styrene-butadiene-styrene triblock copolymer, polyethylene-polystyrene-
Polypropylene terpolymer, ethylene-propylene-diene terpolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid
The mixture of any one or two kinds in ester copolymer and ethylene-acrylate-glycidyl methacrylate copolymer.
Preferably, the continuous long glass fiber is the special continuous long glass fiber of polypropylene.
The present invention also provides the above-mentioned special continuous long glass fiber reinforced profaxes of safe automobile air bag frame（LFTPP）It is multiple
Close the preparation method of object, which is characterized in that be as follows：
The first step：It will be transported to high temperature after polypropylene, heat stabilizer, the special nucleating agent of polypropylene and compatilizer extrusion plasticizing
Melt immersion slot, temperature is 250-360 DEG C in slot；
Second step：Low-temperature melt immersion slot will be transported to after polypropylene and toughener extrusion plasticizing, temperature is 170- in slot
220℃；
Third walks：Continuous long glass fiber is sequentially input with the speed drawing of 20-100m/min to the high temperature in the first step
Low-temperature melt immersion slot in melt immersion slot and second step, traction infiltration, last pelletizing.
The present invention increases polyacrylic high temperature rigid and dimensional stability using continuous long glass fiber.
In addition, the effect of the heat stabilizer in the present invention is to inhibit the degradation that polypropylene generates in process；Polypropylene
The effect of special nucleating agent is the crystalline rate improved during material injection, shortening injection molding cycle；The effect of compatilizer
It is the interface compatibility increased between polypropylene and continuous long glass fiber；The effect of toughener is that the low temperature of improvement material is tough
Property.
To solve the defect of LFTPP low temperature impact properties difference, the present invention is steady using polypropylene, continuous long glass fiber, heat
Determine agent, the special nucleating agent of polypropylene, toughener, it is poly- to be prepared for a kind of special continuous long glass fiber enhancing of safe automobile air bag frame
Propylene（LFTPP）Compound.To solve the problems, such as that toughener viscosity height is unfavorable for glass infiltration, the present invention uses the bis- infiltrations of LFT
Die process realizes infiltration of the polypropylene to continuous long glass fiber, second step low temperature that is, in first step high-temperature fusant die head
The cladding of thermoplastic elastomer (TPE) and polypropylene segment is realized in melt tank.
Material of the present invention has excellent high temperature rigid and low-temperature flexibility, dimensional stability, heat resistance, durability, meets
Requirement of the safe automobile air bag frame to material.After testing, tensile strength（23℃）>=80MPa, tensile strength（85℃）≥
40MPa, stretch modulus（23℃）>=5000Mpa, stretch modulus（85℃）>=3000Mpa, impact strength（23℃）≥60KJ/
m2, impact strength（-35℃）≥50KJ/m2, notch impact strength（23℃）≥20KJ/m2, notch impact strength（-35℃）≥
15KJ/m2, thermo-oxidative ageing（150℃,1000hr）It is rigid to meet air bag frame material high temperature for post-tensioning strength retention >=90%
The requirement of property, low-temperature flexibility and durability.
Specific implementation mode
It is further illustrated the present invention below by embodiment.
Embodiment 1
The first step：By 20 kilograms of polypropylene PP BX3900,0.2 kilogram of phenolic thermostabilizers, 1010,0.3 kilograms of phosphorous acid
The special nucleating agent HPN-20E of 168,0.5 kilograms of polypropylene of esters heat stabilizer, 4 kilograms of compatilizer Bondyram1001 pass through list
High-temperature fusant immersion slot is transported to by mouth mold after screw extruder plasticizing, temperature is 250-360 DEG C in slot；
Second step：51 kilograms of polypropylene PP YPJ3860,4 kilograms of Dupont companies toughener 493D are squeezed by single screw rod
Go out after machine plasticizing and low-temperature melt immersion slot is transported to by mouth mold, temperature is 170-220 DEG C in slot；
Third walks：20 kilograms of PPG companies are produced into continuous long glass fiber Tufrov4588 with the speed drawing of 25m/min
The high-temperature fusant immersion slot in the first step is sequentially input, it is 2m that high-temperature fusant, which infiltrates slot length,；Low-temperature melt leaching in second step
Moisten slot, it is 1m that low-temperature melt, which infiltrates slot length,；Traction infiltration, 12mm long particles are cut into finally by the special pelleters of LFT.
Performance is as follows：
| Performance | Unit | Testing standard | Test result |
| Tensile strength（23℃） | MPa | ISO527/2-93 | 85 |
| Tensile strength（85℃） | MPa | ISO527/2-93 | 45 |
| Stretch modulus（23℃） | MPa | ISO527/2-93 | 5500 |
| Stretch modulus（85℃） | MPa | ISO527/2-93 | 3500 |
| 23 DEG C of impact strengths | KJ/m2 | ISO180-93 | 65 |
| - 35 DEG C of impact strengths | KJ/m2 | ISO180-93 | 55 |
| 23 DEG C of notch impact strengths | KJ/m2 | ISO180-93 | 25 |
| - 35 DEG C of notch impact strengths | KJ/m2 | ISO180-93 | 21 |
| Stretching strength retentivity（150 DEG C, 1000hr） | % | ISO527/2-93 | 95 |
Embodiment 2
The first step：By 30 kilograms of polypropylene PP BX3920,0.5 kilogram of phenolic thermostabilizers, 1010,0.5 kilograms of monothioesters
Type thermal stabilizing agent 412S, special nucleating agent Millad NX8000 of 1 kilogram of polypropylene, 6 kilograms of compatilizer Bondyram1001CN are logical
It crosses after single screw extrusion machine plasticizing and high-temperature fusant immersion slot is transported to by mouth mold, temperature is 250-360 DEG C in slot；
Second step：26 kilograms of polypropylene PP BX3800,6 kilograms of Bondyram companies toughener Bondyram7003 are led to
It crosses after single screw extrusion machine plasticizing and low-temperature melt immersion slot is transported to by mouth mold, temperature is 170-220 DEG C in slot；
Third walks：30 kilograms of PPG companies are produced into continuous long glass fiber Tufrov4599 with the speed drawing of 40m/min
The high-temperature fusant immersion slot in the first step is sequentially input, it is 2m that high-temperature fusant, which infiltrates slot length,；Low-temperature melt leaching in second step
Moisten slot, it is 1m that low-temperature melt, which infiltrates slot length,；Traction infiltration, 12mm long particles are cut into finally by the special pelleters of LFT.
Performance is as follows：
| Performance | Unit | Testing standard | Test result |
| Tensile strength（23℃） | MPa | ISO527/2-93 | 105 |
| Tensile strength（85℃） | MPa | ISO527/2-93 | 65 |
| Stretch modulus（23℃） | MPa | ISO527/2-93 | 6800 |
| Stretch modulus（85℃） | MPa | ISO527/2-93 | 4200 |
| 23 DEG C of impact strengths | KJ/m2 | ISO180-93 | 70 |
| - 35 DEG C of impact strengths | KJ/m2 | ISO180-93 | 60 |
| 23 DEG C of notch impact strengths | KJ/m2 | ISO180-93 | 35 |
| - 35 DEG C of notch impact strengths | KJ/m2 | ISO180-93 | 28 |
| Stretching strength retentivity（150 DEG C, 1000hr） | % | ISO527/2-93 | 97 |
Embodiment 3
The first step：By 35 kilograms of polypropylene PP EP540V, 1 kilogram of phenolic thermostabilizers, 1010,1 kilograms of phosphorous acid esters
3988,8 kilograms of Compatibilizer C A100 of the special nucleating agent Millad of heat stabilizer 627A, 1 kilogram of polypropylene pass through Single screw extrusion
High-temperature fusant immersion slot is transported to by mouth mold after machine plasticizing, temperature is 250-360 DEG C in slot；
Second step：11 kilograms of polypropylene PP BX3900,8 kilograms of Bondyram companies toughener Bondyram7003A are led to
It crosses after single screw extrusion machine plasticizing and low-temperature melt immersion slot is transported to by mouth mold, temperature is 170-220 DEG C in slot；
Third walks：35 kilograms of PPG companies are produced into continuous long glass fiber Tufrov4599 with the speed drawing of 80m/min
The high-temperature fusant immersion slot in the first step is sequentially input, it is 2m that high-temperature fusant, which infiltrates slot length,；Low-temperature melt leaching in second step
Moisten slot, it is 1m that low-temperature melt, which infiltrates slot length,；Traction infiltration, 12mm long particles are cut into finally by the special pelleters of LFT.
Performance is as follows：
| Performance | Unit | Testing standard | Test result |
| Tensile strength（23℃） | MPa | ISO527/2-93 | 118 |
| Tensile strength（85℃） | MPa | ISO527/2-93 | 70 |
| Stretch modulus（23℃） | MPa | ISO527/2-93 | 7800 |
| Stretch modulus（85℃） | MPa | ISO527/2-93 | 5500 |
| 23 DEG C of impact strengths | KJ/m2 | ISO180-93 | 80 |
| - 35 DEG C of impact strengths | KJ/m2 | ISO180-93 | 70 |
| 23 DEG C of notch impact strengths | KJ/m2 | ISO180-93 | 45 |
| - 35 DEG C of notch impact strengths | KJ/m2 | ISO180-93 | 35 |
| Stretching strength retentivity（150 DEG C, 1000hr） | % | ISO527/2-93 | 98 |
The above is presently preferred embodiments of the present invention, but the present invention should not be limited to disclosed in the embodiment
Content.So every do not depart from the lower equivalent or modification completed of spirit disclosed in this invention, the model that the present invention protects is both fallen within
It encloses.
Claims (7)
1. a kind of preparation method of the special continuous long glass fiber reinforced profax compound of safe automobile air bag frame, feature exist
In being grouped as by following group by weight percentage：
Polypropylene 36-76%；
Heat stabilizer 0-2%；
The special nucleating agent 0-2% of polypropylene；
Compatilizer 2-10%；
Toughener 2-10%；
Continuous long glass fiber 20-40%；
The preparation method is as follows：
The first step：It will be transported to high-temperature fusant after polypropylene, heat stabilizer, the special nucleating agent of polypropylene and compatilizer extrusion plasticizing
Immersion slot, temperature is 250-360 DEG C in slot；
Second step：Low-temperature melt immersion slot will be transported to after polypropylene and toughener extrusion plasticizing, temperature is 170-220 in slot
℃；
Third walks：Continuous long glass fiber is sequentially input with the speed drawing of 20-100m/min to the high-temperature fusant in the first step
Low-temperature melt immersion slot in immersion slot and second step, traction infiltration, last pelletizing.
2. preparation method as described in claim 1, which is characterized in that the polypropylene be selected from melt flow rate (MFR) be 10~
Or mixtures thereof the homopolymerization of 1000g/10min, one kind of copolymer polypropylene.
3. preparation method as described in claim 1, which is characterized in that the heat stabilizer is phenols, amine, phosphite ester
Class, half Hinered phenols, acryloyl group functional group and monothioester compound species and calixarenes in any one or a few mixed
Close object.
4. preparation method as described in claim 1, which is characterized in that the special nucleating agent of the polypropylene is selected from extra fine talc
Powder, glucitols, one kind of organic phosphate or its mixture.
5. preparation method as described in claim 1, which is characterized in that the compatilizer is selected from polar monomer graft poly- third
Alkene, polar monomer are selected from maleic anhydride and the like, or mixtures thereof one kind in acrylicacidandesters analog derivative.
6. preparation method as described in claim 1, which is characterized in that the toughener is selected from polar monomer graft thermoplasticity
Elastomer, the polar monomer are selected from maleic anhydride and the like, one kind in acrylicacidandesters analog derivative or it is mixed
Close object；Thermoplastic elastomer (TPE) is selected from ethylene-alpha-octylene copolymers, styrene-butadiene-styrene triblock copolymer, hydrogenation
Styrene-butadiene-styrene triblock copolymer, polyethylene-polystyrene-polypropylene terpolymer, ethylene-propylene-
Butadiene terpolymer, ethylene-vinyl acetate copolymer, vinyl-acrylate copolymer and ethylene-acrylate-first
The mixture of any one or two kinds in base glycidyl acrylate copolymer.
7. preparation method as described in claim 1, which is characterized in that the continuous long glass fiber is the special nothing of polypropylene
Alkali continuous long glass fiber.
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| EP3207091B1 (en) | 2014-10-15 | 2019-09-18 | Bridgestone Corporation | Improved rubber compositions and uses thereof |
| WO2016061304A2 (en) | 2014-10-15 | 2016-04-21 | Bridgestone Corporation | Improved rubber compositions and uses thereof |
| CN104341680A (en) * | 2014-10-28 | 2015-02-11 | 天津金发新材料有限公司 | Creep-resistant long glass fiber reinforced polypropylene material and preparation method and application thereof |
| CN106751510A (en) * | 2016-12-16 | 2017-05-31 | 芜湖天鸿汽车零部件有限公司 | A kind of safe automobile air bag material and preparation method thereof |
| CN110105659B (en) * | 2019-04-08 | 2022-04-22 | 江苏沃特新材料科技有限公司 | Polypropylene composite material for air conditioner wind wheel and preparation method thereof |
| CN112123676B (en) * | 2020-08-14 | 2022-07-05 | 苏州呈润电子有限公司 | Anti-cracking embedded injection molding device and machining process thereof |
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| CN102643478A (en) * | 2012-04-16 | 2012-08-22 | 上海金发科技发展有限公司 | Halogen-free flame-retarding long glass fiber reinforced polypropylene material and preparation method thereof |
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