CN102336967A - Hard seamless airbag material and preparation method thereof - Google Patents
Hard seamless airbag material and preparation method thereof Download PDFInfo
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- CN102336967A CN102336967A CN201110252710XA CN201110252710A CN102336967A CN 102336967 A CN102336967 A CN 102336967A CN 201110252710X A CN201110252710X A CN 201110252710XA CN 201110252710 A CN201110252710 A CN 201110252710A CN 102336967 A CN102336967 A CN 102336967A
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- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
Abstract
The invention provides a hard seamless airbag material and a preparation method thereof. The hard seamless airbag material is characterized by comprising raw materials in parts by weight as follows: 50-70 parts of polypropylene, 20-30 parts of filling masterbatch, 5-15 parts of compatilizer, 0.1-1 part of antioxidant and 0.1-0.5 part of processing auxiliary agent. The preparation method of the hard seamless airbag material is characterized in by comprising the steps of: weighing the polypropylene, the filling masterbatch, the compatilizer and the processing auxiliary agent; proportionally placing in a high-speed mixer to be uniformly mixed; and extruding and granulating to manufacture the hard seamless airbag material. The hard seamless airbag material, provided by the invention, has excellent low-temperature toughness while meets the conventional mechanical property of an automotive interior decorative part material, and the good rigidity of the automotive interior decorative part material is maintained.
Description
Technical field
The present invention relates to a kind of hard seamless gasbag material and preparation method thereof, be used to make the hard seamless gasbag of fascia, belong to the automotive material technical field.
Background technology
Modified polypropylene material is one of automobile non-metal material that suitability is the strongest up to now, is widely used in making each component of automobile.The parts of suitable high request are especially arranged for the low-temperature flexibility of material, like collision bumper, seamless gasbag, test board material etc., even more important.When automobile receives the outer accidental shock energy of car, need to guarantee that test board in time pops air bag, reduce to minimum, can not produce fragment or acute angle comes to harm the driver and conductor because of destroying simultaneously in order to the damage that the protection driver and conductor receives.Therefore receiving when impacting, the low-temperature flexibility of material becomes automotive trim and test board with in the material, top-priority performance during particularly the hard test board designs.
The method that prior art is improved the low-temperature flexibility of material mainly is to select different elasticity body type and increase elastomeric content, and in order to reach the low temperature toughening effect, still meanwhile material is lost the normal temperature rigidity.
In order to prepare high rigidity H.T. modified polypropene, mainly form with components such as Vestolen PP 7052, elastomerics, fillers at present, elastomerics mainly has POE, EVA, EPDM etc., and filler mainly is a common talcum powder etc.This method can be prepared certain rigidity and flexible modified polypropene, but multiaxis impelling strength is greater than 6kJ/ ㎡ under difficult satisfied-30 ℃ of low temperature, and normal temperature good rigidly performance requriementss such as (modulus in flexure are greater than 1800MPa).Therefore solve that Vestolen PP 7052 satisfies the high rigidity of normal temperature simultaneously and under-30 ℃ of low temperature the technical barrier of the impact-modified polypropylene material of multiaxis, be very necessary.
Summary of the invention
The purpose of this invention is to provide hard seamless gasbag material that a kind of low-temperature flexibility is good and the normal temperature rigidity is good and preparation method thereof.
In order to achieve the above object; The invention provides a kind of hard seamless gasbag material; It is characterized in that its raw material comprises: Vestolen PP 7052 55～70 weight parts, filler parent granule 20～30 weight parts, compatilizer 5～15 weight parts, oxidation inhibitor 0.1～1 weight part and processing aid 0.1～0.5 weight part.
Preferably, described Vestolen PP 7052 is at least a in HOPP and the COPP.
More preferably, described Vestolen PP 7052 is one or more the mixture among SP179, M2600R, 7033N, YPJ1215C, K9017, K9026, BX3900, K7100 and the K7726H.
Preferably, described filler parent granule is by the polyolefin elastomer of 20～50 weight parts, and the high order of 40～79 weight parts is counted the powder filler, and the processing aid mixed melting granulation of the oxidation inhibitor of 0.2～1 weight part and 0.2～0.6 weight part forms.
More preferably, the temperature of described melt pelletization is 160～250 ℃.The equipment that described melt pelletization is used as Banbury mixer, mill, single screw extrusion machine or screw rod number more than or equal to 2 forcing machine.
More preferably, described polyolefin elastomer is Hifax 7271 XEP, Hifax CA 207 A, the compsn of one or several among Hifax BC 72 G and Hifax BR 1149 A/M.
More preferably, to count the powder filler be that average order number is a kind of or its mixture in 3000-5000 purpose talcum powder, calcium carbonate granule, kaolin particle, mica particles, wollastonite particle and the potassium titanate crystal whisker to described high order.
Preferably, described compatilizer is a terpolymer: the compsn of one or more in ethene-n-butyl acrylate-glycidyl methacrylate copolymer, ethylene-alpha-octylene copolymers, ethylene-acrylate-glycidyl methacrylate copolymer and the ethylene-propylene-butadiene terpolymer.
Preferably, described oxidation inhibitor is oxidation inhibitor 168 or antioxidant 1010.The oxidation inhibitor that uses in hard seamless gasbag material and the filler parent granule can be identical, also can be different.
Preferably, described processing aid is one or more the compsn in barium stearate, calcium stearate, Zinic stearas and the Magnesium Stearate.The processing aid that uses in hard seamless gasbag material and the filler parent granule can be identical, also can be different.
The present invention also provides above-mentioned hard seamless gasbag preparation methods, it is characterized in that, comprising:
The first step: take by weighing Vestolen PP 7052, filler parent granule, compatilizer, oxidation inhibitor and processing aid, place high-speed mixer and mixing even in proportion;
Second step: it is that 40:1, rotating speed are that extruding working temperature is 130 ℃～260 ℃ in a district, 140 ℃～270 ℃ in two districts in 100～500 rev/mins the twin screw extruder that the mixture of the first step gained is inserted length-to-diameter ratio; 150 ℃～280 ℃ in three districts, 150 ℃～280 ℃ in four districts, 150 ℃～280 ℃ in five districts; 150 ℃～280 ℃ in six districts, 150 ℃～280 ℃ in seven districts, 150 ℃～280 ℃ in eight districts; Residence time 1-2 minute, extruding pelletization made hard seamless gasbag material.
Beneficial effect of the present invention is:
1, the present invention adopts high order to count powder and polyolefin elastic volume recombination preparation enhancing plasticizing mother particle; When satisfying automotive upholstery material conventional mechanical property, have excellent low-temperature flexibility, the low-temperature flexibility that satisfies existing high-end modified polypropylene material standard (GMW15340) requires :-30 ℃ of notch shocks (ISO180) are greater than 6KJ/m
2, reach 6.5 KJ/M
2More than, surpass the low-temperature flexibility requirement of existing high-end modified polypropylene material standard (GMW15340).Keep the material favorable rigidity simultaneously.Use the hard seamless gasbag low-temperature flexibility of made of the present invention good, rigidity is strong, long service life, the security that improved automobile.
2, the present invention solves the material compatibility problem through the terpolymer compatilizer, and the molded surface defective is few.
3, technology of the present invention is simple, and products obtained therefrom is prone to processing, is fit to the forming process of different mould structures.
Embodiment
Specify the present invention below in conjunction with embodiment.Homopolymerization of the present invention or COPP (PP) SP179, M2600R, 7033N, YPJ1215C, K9017, K9026, BX3900, K7100, K7726H, high order are counted powder filler, compatilizer, oxidation inhibitor, processing aid and are known existing material.
Embodiment 1
(1) will be by polyolefin elastomer Hifax 7271 XEP of 40 weight parts; 3000 purpose talcum powder of 59 weight parts; 0.6 the oxidation inhibitor 168 of weight part and the processing aid barium stearate of 0.4 weight part are inserted in the screw extrusion press, melt extrude granulation at 160 ℃, obtain filler parent granule.
(2) accurately take by weighing PP SP179 and PP M2600R mixture 65 weight parts (35 parts of PP SP179,30 parts of PP M2600R), filler parent granule (step 1 preparation) 25 weight parts, ethylene-acrylate-glycidyl methacrylate copolymer (the French GMA AX8900 of Arkema) 9 weight parts, 0.5 weight part oxidation inhibitor 168, processing aid barium stearate 0.5 weight part, place high-speed mixer to mix;
(3) step 2 product being inserted length-to-diameter ratio is that 40:1, rotating speed are that extruding working temperature is 130 ℃ in a district, 140 ℃ in two districts in 100 rev/mins the twin screw extruder; 150 ℃ in three districts, 150 ℃ in four districts, 150 ℃ in five districts; 150 ℃ in six districts, 150 ℃ in seven districts, 150 ℃ in eight districts; 1 minute residence time, extruding pelletization makes hard seamless gasbag material.
Embodiment 2
(1) will be by Hifax CA 207 A and 13 weight part Hifax BC, 72 G of 30 weight parts; The 3500 purpose talcum powder of 46 weight parts and the wollastonite of 10 weight parts; 0.7 the processing aid Zinic stearas of the antioxidant 1010 of weight part and 0.3 weight part is inserted in the screw extrusion press; Melt extrude granulation at 250 ℃, obtain filler parent granule.
(2) accurately take by weighing Vestolen PP 7052 (PP K9017) 60 weight parts, filler parent granule (step 1 preparation) 30 weight parts, ethylene-propylene-butadiene terpolymer (DOW Chemical 4770R (P)) 9 weight parts, 0.5 weight part antioxidant 1010,0.5 weight part Zinic stearas, place high-speed mixer to mix;
(3) step 2 product being inserted length-to-diameter ratio is that 40:1, rotating speed are that extruding working temperature is 260 ℃ in a district, 270 ℃ in two districts in 500 rev/mins the twin screw extruder; 280 ℃ in three districts, 280 ℃ in four districts, 280 ℃ in five districts; 280 ℃ in six districts, 280 ℃ in seven districts, 280 ℃ in eight districts; 2 minutes residence time, extruding pelletization makes hard seamless gasbag material.
Embodiment 3
(1) will be by polyolefin elastomer Hifax BR 1149 A/M and 10 weight part Hifax BC, 72 G of 25 weight parts; The 5000 purpose kaolin of 50 weight parts and the mica of 14 weight parts; 0.6 the oxidation inhibitor 168 of weight part and the calcium stearate of 0.4 weight part are inserted in the screw extrusion press; Melt extrude granulation at 180 ℃, obtain filler parent granule.
(2) accurately take by weighing 25 weight part PP 7033N and 30 weight part PP SP179; Filler parent granule (step 1 preparation) 30 weight parts, ethylene-alpha-octylene copolymers (LG-DOW POE8402) 14 weight parts, 0.5 weight part oxidation inhibitor 168, processing aid calcium stearate 0.5 weight part place high-speed mixer to mix;
(3) step 2 product being inserted length-to-diameter ratio is that 40:1, rotating speed are that extruding working temperature is 150 ℃ in a district, 160 ℃ in two districts in 200 rev/mins the twin screw extruder; 170 ℃ in three districts, 170 ℃ in four districts, 170 ℃ in five districts; 170 ℃ in six districts, 170 ℃ in seven districts, 170 ℃ in eight districts; 1.5 minutes residence time, extruding pelletization makes hard seamless gasbag material.
Embodiment 4
(1) will be by Hifax BC 72 G of 20 weight parts; The whisker of 4000 purpose lime carbonate, 9 weight parts of 70 weight parts; 0.5 the oxidation inhibitor 168 of weight part and the processing aid Magnesium Stearate of 0.5 weight part are inserted in the screw extrusion press, melt extrude granulation at 200 ℃, obtain filler parent granule.
(2) accurately take by weighing 55 weight part PP 7033N; Filler parent granule (step 1 preparation) 30 weight parts, ethylene-acrylate-glycidyl methacrylate copolymer (the French GMA AX8900 of Arkema) 14 weight parts, 0.5 weight part oxidation inhibitor 168, Magnesium Stearate 0.5 weight part place high-speed mixer to mix;
(3) step 2 product being inserted length-to-diameter ratio is that 40:1, rotating speed are that extruding working temperature is 170 ℃ in a district, 180 ℃ in two districts in 300 rev/mins the twin screw extruder; 190 ℃ in three districts, 190 ℃ in four districts, 190 ℃ in five districts; 190 ℃ in six districts, 190 ℃ in seven districts, 190 ℃ in eight districts; 1.5 minutes residence time, extruding pelletization makes hard seamless gasbag material.
Embodiment 5
(1) will be by polyolefin elastomer Hifax BR 1149 A/M of 25 weight parts; The 5000 purpose mica powders of 30 weight parts and the talcum powder of 43.5 weight parts; The processing aid calcium stearate of the antioxidant 1010 of 1 weight part and 0.5 weight part is gone in the screw extrusion press; Melt extrude granulation at 220 ℃, obtain filler parent granule.
(2) accurately take by weighing Vestolen PP 7052 PP M2600R mixture 64 weight parts, filler parent granule (step 1 preparation) 30 weight parts, ethylene-alpha-octylene copolymers (LG-DOW POE8402) 5 weight parts, 0.5 weight part oxidation inhibitor 168, processing aid calcium stearate 0.5 weight part, place high-speed mixer to mix;
(3) step 2 product being inserted length-to-diameter ratio is that 40:1, rotating speed are that extruding working temperature is 190 ℃ in a district, 200 ℃ in two districts in 400 rev/mins the twin screw extruder; 210 ℃ in three districts, 210 ℃ in four districts, 210 ℃ in five districts; 210 ℃ in six districts, 210 ℃ in seven districts, 210 ℃ in eight districts; 1.5 minutes residence time, extruding pelletization makes hard seamless gasbag material.
Table 1. embodiment 1-5 testing standard and performance data
Claims (10)
1. a hard seamless gasbag material is characterized in that its raw material comprises: Vestolen PP 7052 55～70 weight parts, filler parent granule 20～30 weight parts, compatilizer 5～15 weight parts, oxidation inhibitor 0.1～1 weight part and processing aid 0.1～0.5 weight part.
2. hard seamless gasbag material as claimed in claim 1 is characterized in that, described Vestolen PP 7052 is at least a in HOPP and the COPP.
3. hard seamless gasbag material as claimed in claim 1 is characterized in that, described Vestolen PP 7052 is one or more the mixture among SP179, M2600R, 7033N, YPJ1215C, K9017, K9026, BX3900, K7100 and the K7726H.
4. hard seamless gasbag material as claimed in claim 1; It is characterized in that; Described filler parent granule is by the polyolefin elastomer of 20～50 weight parts; The high order of 40～79 weight parts is counted the powder filler, and the processing aid mixed melting granulation of the oxidation inhibitor of 0.2～1 weight part and 0.2～0.6 weight part forms.
5. hard seamless gasbag material as claimed in claim 4 is characterized in that, described polyolefin elastomer is Hifax 7271 XEP, Hifax CA 207 A, the compsn of one or several among Hifax BC 72 G and Hifax BR 1149 A/M.
6. hard seamless gasbag material as claimed in claim 4; It is characterized in that it is that average order number is a kind of or its mixture in 3000-5000 purpose talcum powder, calcium carbonate granule, kaolin particle, mica particles, wollastonite particle and the potassium titanate crystal whisker that described high order is counted the powder filler.
7. hard seamless gasbag material as claimed in claim 1; It is characterized in that described compatilizer is a terpolymer: the compsn of one or more in ethene-n-butyl acrylate-glycidyl methacrylate copolymer, ethylene-alpha-octylene copolymers, ethylene-acrylate-glycidyl methacrylate copolymer and the ethylene-propylene-butadiene terpolymer.
8. like claim 1 or 4 described hard seamless gasbag materials, it is characterized in that described oxidation inhibitor is oxidation inhibitor 168 or antioxidant 1010.
9. like claim 1 or 3 described hard seamless gasbag materials, it is characterized in that described processing aid is one or more the compsn in barium stearate, calcium stearate, Zinic stearas and the Magnesium Stearate.
10. each described hard seamless gasbag preparation methods of claim 1-9 is characterized in that, comprising:
The first step: take by weighing Vestolen PP 7052, filler parent granule, compatilizer, oxidation inhibitor and processing aid, place high-speed mixer and mixing even in proportion;
Second step: it is that 40:1, rotating speed are that extruding working temperature is 130 ℃～260 ℃ in a district, 140 ℃～270 ℃ in two districts in 100～500 rev/mins the twin screw extruder that the mixture of the first step gained is inserted length-to-diameter ratio; 150 ℃～280 ℃ in three districts, 150 ℃～280 ℃ in four districts, 150 ℃～280 ℃ in five districts; 150 ℃～280 ℃ in six districts, 150 ℃～280 ℃ in seven districts, 150 ℃～280 ℃ in eight districts; Residence time 1-2 minute, extruding pelletization made the hard seamless gasbag and uses the automobile instrument panel material.
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| CN201110252710.XA CN102336967B (en) | 2011-08-30 | 2011-08-30 | A kind of hard seamless airbag material and preparation method thereof |
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| CN201110252710.XA CN102336967B (en) | 2011-08-30 | 2011-08-30 | A kind of hard seamless airbag material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072843A (en) * | 2014-06-10 | 2014-10-01 | 东莞上海大学纳米技术研究院 | Multi-scale composite function masterbatch and preparation method thereof |
| CN104744812A (en) * | 2013-12-31 | 2015-07-01 | 南京金杉汽车工程塑料有限责任公司 | Ultralow-temperature high-toughness modified polypropylene and preparation method 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 |
| CN108329600A (en) * | 2018-02-08 | 2018-07-27 | 佛山市稳格家居用品有限公司 | A kind of PP decoration materials and preparation method thereof |
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| US5786049A (en) * | 1994-07-25 | 1998-07-28 | Trw Occupant Restraint Systems Gmbh | Cover for a gas bag module |
| JP2004285237A (en) * | 2003-03-24 | 2004-10-14 | Sumitomo Chem Co Ltd | Thermoplastic resin composition for air bag cover |
| CN1737039A (en) * | 2004-08-18 | 2006-02-22 | 上海杰事杰新材料股份有限公司 | Polyolefin composition and its preparation method and uses |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5786049A (en) * | 1994-07-25 | 1998-07-28 | Trw Occupant Restraint Systems Gmbh | Cover for a gas bag module |
| JP2004285237A (en) * | 2003-03-24 | 2004-10-14 | Sumitomo Chem Co Ltd | Thermoplastic resin composition for air bag cover |
| CN1737039A (en) * | 2004-08-18 | 2006-02-22 | 上海杰事杰新材料股份有限公司 | Polyolefin composition and its preparation method and uses |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104744812A (en) * | 2013-12-31 | 2015-07-01 | 南京金杉汽车工程塑料有限责任公司 | Ultralow-temperature high-toughness modified polypropylene and preparation method thereof |
| CN104072843A (en) * | 2014-06-10 | 2014-10-01 | 东莞上海大学纳米技术研究院 | Multi-scale composite function masterbatch and preparation method thereof |
| CN104072843B (en) * | 2014-06-10 | 2017-10-13 | 东莞上海大学纳米技术研究院 | A kind of multiple dimensioned composite functional agglomerate and preparation method 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 |
| CN108329600A (en) * | 2018-02-08 | 2018-07-27 | 佛山市稳格家居用品有限公司 | A kind of PP decoration materials and preparation method thereof |
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| CN102336967B (en) | 2016-11-23 |
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