CN106750951A - It is a kind of to exempt from sprayable PP composite material of flame treatment and preparation method thereof - Google Patents
It is a kind of to exempt from sprayable PP composite material of flame treatment and preparation method thereof Download PDFInfo
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- CN106750951A CN106750951A CN201611216528.8A CN201611216528A CN106750951A CN 106750951 A CN106750951 A CN 106750951A CN 201611216528 A CN201611216528 A CN 201611216528A CN 106750951 A CN106750951 A CN 106750951A
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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
-
- 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
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- 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
- B29C2948/92704—Temperature
-
- 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
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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
-
- 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
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
-
- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Exempt from sprayable PP composite material of flame treatment and preparation method thereof the invention discloses a kind of, wherein PP composite material is made up of following raw materials by weight：Polypropylene 48 79%, inorganic filler 15 25%, elastic body toughening agent 5 15%, compatilizer 0 3%, surface lubricant 0 1%, stabilizer 0.1 2%, other additives 0 5%.Beneficial effects of the present invention are：1st, by polypropylene, inorganic filler, elastic body toughening agent and compatilizer, the synergy of surface lubricant, products obtained therefrom is painted by need not carrying out flame treatment, and PASS is good.2nd, the mechanical property of materials of the invention is suitable with traditional material, while the necessary flame treatment process of lacquer spraying technique can be removed from, substantially reduces the manufacturing cost of spray painting part.
Description
Technical field
The present invention relates to a kind of PP composite material, specially a kind of sprayable polypropylene composite materials material for exempting from flame treatment
Material, with and preparation method thereof；Belong to polymer modification and manufacture field.
Background technology
Requirement with the fast development and people of auto industry to vehicle body outward appearance is increasingly improved, with bumper as representative
Most of vehicle body plastics exterior trim part be required to carry out spray painting treatment, with keep it is consistent with vehicle body metallic paint outward appearance.Protect at present
The exterior trim such as dangerous thick stick part is mostly produced using PP composite material, and for the consideration of environmental requirement, paint used is mostly water
Property paint, and because polypropylene sheet is as non-polar material, the water paint compatibility with polarity is poor, if direct spraying, the two
Adhesion it is very poor, it is easy to part transport and installation process in cause skin of paint to peel off, so as to cause part rejection.Cause
This, current PP type part is required to by flame baking process before spray painting, and the surface polarity of part is improved with the short time,
So as to meet the requirement of paint attachment.But time-consuming for flame baking flow, equipment investment big and improper process control is easily caused
Part spray painting effect is deteriorated, if can try to improve the polarity of polypropylene based material itself, that is, is possible to remove flame treatment mistake from
Journey, substantially reduces manufacturing cost.
In order to realize above-mentioned target, the present invention by polypropylene, inorganic filler, elastic body toughening agent and polarity compatible agent,
Surface lubricant etc. acts synergistically, and products obtained therefrom need not carry out flame treatment, and PASS is good after directly painting, same to opportunity
Tool property retention is constant, can be largely used to need the exterior trim injection-moulded plastic part of spray painting treatment.
The content of the invention
It is an object of the invention to develop a kind of sprayable PP composite material for exempting from flame treatment, for automobile or family
Electric industry needs the injection of the parts of spray treatment.
Another object of the present invention is to provide for the preparation method of this PP composite material.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of sprayable PP composite material for exempting from flame treatment, is made up of the raw material of following weight percents：
Wherein,
Described polypropylene is homopolymerization or co-polypropylene of the melt flow rate (MFR) for 5-60g/10min, and test condition is 230
DEG C, the comonomer of 2.16kg, wherein co-polypropylene is ethene, and its content is 4-10mol%.
Described inorganic filler be talcum powder, mica, whisker, wollastonite, glass fibre in one or more
Composition, the talcum powder of preferred average diameter 5um.
Described elastic body toughening agent is common polybutadiene rubber, Ethylene-Propylene-Diene rubber (EPDM), ethylene-octene
One or more composition in polymers, ethylene-butene copolymer etc.；Optimal ethylene-octene copolymer elastomer, melts
Body flow rate is 0.5-10g/10min, and test condition is 230 DEG C, 2.16kg.
Described compatilizer is graft polypropylene, grafted polyethylene, grafted polystyrene, grafted ABS and is grafted in POE
One or more combinations, described grafted moiety for the one kind in maleic anhydride, silane, acrylic acid and polyacrylamide or
Two or more combinations；Preferably maleic anhydride inoculated polypropylene, density is 0.89-0.91g/cm3, and fusing point is 170-190 DEG C,
Under the test condition of 230 DEG C × 2.16kg, melt flow rate (MFR) is 10-50g/10min, and grafting rate is 0.5-1.0%, is any
Homopolymerization or block copolymerization propylene are through the modified gained of maleic anhydride melt extrusion.
Described surface lubricant is aliphatic acid or derivatives thereof, preferably fatty acid amides class material.
Primary antioxidant and auxiliary antioxidant of the stabilizer for needed for those skilled in the art think, wherein primary antioxidant
It is hindered phenol or sulphur ester antioxidant, auxiliary antioxidant is phosphorite kind antioxidant.
Described other additives think required colouring agent, nucleator, foaming agent, surface work including those skilled in the art
One kind in property agent, plasticizer, coupling agent, fire retardant, light stabilizer, processing aid, antistatic auxiliary, antimicrobial auxiliary agent or
Composition above.
The preparation method of the above-mentioned sprayable PP composite material for exempting from flame treatment, its step is as follows：
1) raw material is weighed by weight ratio；
2) polypropylene, inorganic filler, elastic body toughening agent, compatilizer, surface lubricant, stabilizer and other auxiliary agents are existed
It is dry-mixed 3-15 minutes in super mixer, by mixed raw material addition double screw extruder, cooled down after melting extrusion and made
Grain；Wherein temperature is in barrel：One 190-200 DEG C of area, two 190-210 DEG C of areas, three 190-210 DEG C of areas, four 190-210 DEG C of areas,
190-220 DEG C of head, double screw extruder rotating speed is 100-1000 revs/min.
It is an advantage of the invention that：
1st, by polypropylene, inorganic filler, elastic body toughening agent and compatilizer, the synergy of surface lubricant, gained
Product is painted by need not carrying out flame treatment, and PASS is good.
2nd, the mechanical property of materials of the invention is suitable with traditional material, while can remove from the necessary flame of lacquer spraying technique
Reason process, substantially reduces the manufacturing cost of spray painting part.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.The scope of the present invention is not by these embodiments
Limitation, the scope of the present invention is proposed in detail in the claims.
In the composite-material formula of embodiment and comparative example, polypropylene used be melt flow rate (MFR) (230 DEG C ×
2.16kg) the block copolymerization propylene of 5-60/10min, the wherein comonomer of block copolymerization propylene are ethene, and its content is in 4-
In the range of 10mol%.
Inorganic filler used is the talcum powder of average diameter 5um.
Elastomer used is the ethylene-octene copolymer 8150 of DOW companies.
Compatilizer used is maleic anhydride inoculated polypropylene.
Surface lubricant used is fatty acid amide.
Stabilizer used for ICE companies of Britain Negonox DSTP (chemical name be thio-2 acid tristearin alcohol ester),
(chemical name is four [β-(3,5- di-t-butyl 4- hydroxy phenyls) propionic acid] pentaerythrites to the Irganox 1010 of Ciba companies
Ester) and Ciba companies Igrafos168 (chemical name be phosphorous acid three (2,4- di-tert-butyls) ester).
Embodiment 1
Polypropylene 74.5%, talcum powder 15%, elastic body toughening agent 10%, Irganox 1010 are weighed by weight percentage
For 0.1%, Igrafos 168 is that 0.1%, Negonox DSTP are 0.3%, dry-mixed 5 minutes in super mixer, add
Melting extrusion granulation in double screw extruder, wherein temperature is in barrel：One 200 DEG C of area, two 210 DEG C of areas, three 210 DEG C of areas, four
210 DEG C of area, 220 DEG C of head, double screw extruder rotating speed is 400 revs/min.Particle is injected on injection (mo(u)lding) machine after drying
Type sample preparation.Model directly paints without flame treatment and carries out paint peel test.
Embodiment 2
Weighing polypropylene 74.5%, talcum powder 20%, elastomer 5%, Irganox 1010 by weight percentage is
0.1%th, Igrafos 168 is that 0.1%, Negonox DSTP are 0.3%, dry-mixed 5 minutes in super mixer, is added double
Melting extrusion granulation in screw extruder, wherein temperature is in barrel：One 200 DEG C of area, two 210 DEG C of areas, three 210 DEG C of areas, 4th area
210 DEG C, 220 DEG C of head, double screw extruder rotating speed is 400 revs/min.The particle injection moulding on injection (mo(u)lding) machine after drying
Sample preparation.Model directly paints without flame treatment and carries out paint peel test.
Embodiment 3
Polypropylene 64.5%, talcum powder 20%, elastic body toughening agent 15%, Irganox 1010 are weighed by weight percentage
For 0.1%, Igrafos 168 is that 0.1%, Negonox DSTP are 0.3%, dry-mixed 5 minutes in super mixer, add
Melting extrusion granulation in double screw extruder, wherein temperature is in barrel：One 200 DEG C of area, two 210 DEG C of areas, three 210 DEG C of areas, four
210 DEG C of area, 220 DEG C of head, double screw extruder rotating speed is 400 revs/min.Particle is injected on injection (mo(u)lding) machine after drying
Type sample preparation.Model directly paints without flame treatment and carries out paint peel test.
Embodiment 4
Polypropylene 59.5%, talcum powder 25%, elastic body toughening agent 15%, Irganox 1010 are weighed by weight percentage
For 0.1%, Igrafos 168 is that 0.1%, Negonox DSTP are 0.3%, dry-mixed 5 minutes in super mixer, add
Melting extrusion granulation in double screw extruder, wherein temperature is in barrel：One 200 DEG C of area, two 210 DEG C of areas, three 210 DEG C of areas, four
210 DEG C of area, 220 DEG C of head, double screw extruder rotating speed is 400 revs/min.Particle is injected on injection (mo(u)lding) machine after drying
Type sample preparation.Model directly paints without flame treatment and carries out paint peel test.
Embodiment 5
Polypropylene 68.5%, talcum powder 20%, elastomer 10%, compatilizer 1%, Irganox are weighed by weight percentage
1010 is that 0.1%, Igrafos 168 is that 0.1%, Negonox DSTP are 0.3%, dry-mixed 5 minutes in super mixer, then
Melting extrusion granulation in double screw extruder is added, wherein temperature is in barrel：One 200 DEG C of area, two 210 DEG C of areas, three areas 210
DEG C, four 210 DEG C of areas, 220 DEG C of head, double screw extruder rotating speed is 400 revs/min.Particle is after drying on injection (mo(u)lding) machine
Injection moulding sample preparation.Model directly paints without flame treatment and carries out paint peel test.
Embodiment 6
Polypropylene 68%, talcum powder 20%, elastomer 10%, compatilizer 1%, surface lubricant are weighed by weight percentage
0.5%th, Irganox 1010 is that 0.1%, Igrafos 168 is that 0.1%, Negonox DSTP are 0.3%, in super mixer
In dry-mixed 5 minutes, add melting extrusion granulation in double screw extruder, wherein temperature is in barrel：One 200 DEG C of area, 2nd area
210 DEG C, three 210 DEG C of areas, four 210 DEG C of areas, 220 DEG C of head, double screw extruder rotating speed is 400 revs/min.Particle exists after drying
Injection moulding sample preparation on injection (mo(u)lding) machine.Model directly paints without flame treatment and carries out paint peel test.
Comparative example
Polypropylene 69.5%, talcum powder 20%, elastic body toughening agent 10%, Irganox 1010 are weighed by weight percentage
For 0.1%, Igrafos 168 is that 0.1%, Negonox DSTP are 0.3%, dry-mixed 5 minutes in super mixer, add
Melting extrusion granulation in double screw extruder, wherein temperature is in barrel：One 200 DEG C of area, two 210 DEG C of areas, three 210 DEG C of areas, four
210 DEG C of area, 220 DEG C of head, double screw extruder rotating speed is 400 revs/min.Particle is injected on injection (mo(u)lding) machine after drying
Type sample preparation.Model paints after flame treatment and carries out paint peel test.
Performance evaluation mode：
Sample rate test is carried out by ISO1183-1 standards；Bending property test is carried out by ISO178 standards, specimen size
It is 80 × 10 × 4mm, span 64mm, rate of bending 2mm/min；Charpy Impact performance test is carried out by ISO179-1 standards,
Specimen size is 80 × 10 × 4mm, and notch depth is 1/3rd of sample thickness；Melt flow rate (MFR) is marked by ISO1133-1
Standard is carried out, and test condition is 230 DEG C × 2.16kg；Paint peel test uses cross cross-hatching, painted surface to do cross cutting
Adhered to adhesive tape afterwards and quickly removed, assessment paint is stripped area proportion.
Each embodiment and comparative example formula and the performance test results see below Lie Gebiao：
The embodiment 1-6 of table 1 and comparative example material prescription (weight %)
The embodiment 1-6 of table 2 and comparative example the performance test results
| Comparative example | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Density (g/cm3) | 1.06 | 1.02 | 1.06 | 1.06 | 1.09 | 1.06 | 1.06 |
| Melt flow rate (MFR) (g/10min) | 20 | 20 | 23 | 20 | 16 | 19 | 21 |
| Bending modulus (MPa) | 1500 | 1200 | 1700 | 1300 | 1500 | 1550 | 1500 |
| Notch impact strength/23 DEG C (kJ/m2) | 30 | 32 | 10 | 40 | 35 | 27 | 29 |
| Paint stripping comes off (%) | 0 | 15 | 10 | 15 | 12 | 2 | 0 |
Comparative example is the proportioning of typical exterior trim bumper PP composite material, and model is sprayed after flame treatment
Paint and paint peel test, enamelled coating are not peeled off；Embodiment 1-4 is the polypropylene of different talcum powder/elastic body toughening agent proportioning
Composite, model directly paints without flame treatment and carries out peel test, it is found that enamelled coating is peeled off seriously, there is 10-15%
Left and right come off, it is impossible to meet use requirement；Embodiment 5 adds compatilizer, and enamelled coating stripping rate is greatly lowered, but still has a small amount of
Come off；Embodiment 6 adds surface lubricant on the basis of embodiment 5, is directly painted without flame treatment, finds skin of paint
Without peeling off, while comprehensive mechanical performance is roughly the same with comparative example, use requirement can be met.
Claims (13)
1. a kind of sprayable PP composite material for exempting from flame treatment, it is characterised in that：By the raw material of following weight percents
Composition：
2. a kind of sprayable PP composite material for exempting from flame treatment according to claim 1, it is characterised in that：It is described
Polypropylene for melt flow rate (MFR) for 5-60g/10min homopolymerization or co-polypropylene, test condition be 230 DEG C, 2.16kg, its
The comonomer of middle co-polypropylene is ethene, and its content is 4-10mol%.
3. a kind of sprayable PP composite material for exempting from flame treatment according to claim 1, it is characterised in that：It is described
Inorganic filler be one or more the composition in talcum powder, mica, whisker, wollastonite, glass fibre.
4. a kind of sprayable PP composite material for exempting from flame treatment according to claim 3, it is characterised in that：It is described
Inorganic filler for average diameter 5um talcum powder.
5. a kind of sprayable PP composite material for exempting from flame treatment according to claim 1, it is characterised in that：It is described
Elastic body toughening agent be polybutadiene rubber, Ethylene-Propylene-Diene rubber (EPDM), ethylene-octene copolymer, ethene-fourth
One or more composition in alkene copolymer etc..
6. a kind of sprayable PP composite material for exempting from flame treatment according to claim 1, it is characterised in that：It is described
Elastic body toughening agent be ethylene-octene copolymer elastomer, melt flow rate (MFR) is 0.5-10g/10min, and test condition is
230 DEG C, 2.16kg.
7. a kind of sprayable PP composite material for exempting from flame treatment according to claim 1, it is characterised in that：It is described
Compatilizer for graft polypropylene, grafted polyethylene, grafted polystyrene, grafted ABS and grafting POE in one or two with
Upper combination, described grafted moiety is one or more groups in maleic anhydride, silane, acrylic acid and polyacrylamide
Close.
8. a kind of sprayable PP composite material for exempting from flame treatment according to claim 7, it is characterised in that：It is described
Compatilizer be maleic anhydride inoculated polypropylene, density is 0.89-0.91g/cm3, and fusing point is 170-190 DEG C, 230 DEG C ×
Under the test condition of 2.16kg, melt flow rate (MFR) is 10-50g/10min, and grafting rate is 0.5-1.0%, be any homopolymerization or
Block copolymerization propylene is through the modified gained of maleic anhydride melt extrusion.
9. a kind of sprayable PP composite material for exempting from flame treatment according to claim 1, it is characterised in that：It is described
Surface lubricant for aliphatic acid or derivatives thereof.
10. a kind of sprayable PP composite material for exempting from flame treatment according to claim 9, it is characterised in that：Institute
The surface lubricant stated is fatty acid acyl amine material.
A kind of 11. sprayable PP composite materials for exempting from flame treatment according to claim 1, it is characterised in that：Institute
State primary antioxidant and auxiliary antioxidant of the stabilizer for needed for those skilled in the art think, wherein primary antioxidant be hindered phenol or
Sulphur ester antioxidant, auxiliary antioxidant is phosphorite kind antioxidant.
A kind of 12. sprayable PP composite materials for exempting from flame treatment according to claim 1, it is characterised in that：Institute
State other additives and think required colouring agent, nucleator, foaming agent, surfactant, plasticising including those skilled in the art
One or more group in agent, coupling agent, fire retardant, light stabilizer, processing aid, antistatic auxiliary, antimicrobial auxiliary agent
Compound.
13. according to a kind of system of one of any described sprayable PP composite materials for exempting from flame treatment of claim 1-12
Preparation Method, it is characterised in that：Its step is as follows：
1) raw material is weighed by weight ratio；
2) by polypropylene, inorganic filler, elastic body toughening agent, compatilizer, surface lubricant, stabilizer and other auxiliary agents at a high speed
It is dry-mixed 3-15 minutes in blender, by mixed raw material add double screw extruder in, the cooling granulation after melting extrusion；Its
Temperature is in middle barrel：One 190-200 DEG C of area, two 190-210 DEG C of areas, three 190-210 DEG C of areas, four 190-210 DEG C of areas, head
190-220 DEG C, double screw extruder rotating speed is 100-1000 revs/min.
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| CN107513219A (en) * | 2017-09-20 | 2017-12-26 | 阜南县鲲鹏塑业科技有限公司 | A kind of preparation method of easy dyeing plastic master batch |
| CN109679219A (en) * | 2018-12-28 | 2019-04-26 | 金旸（厦门）新材料科技有限公司 | One kind exempting from flame treatment polypropylene material for automotive bumper and preparation method thereof |
| CN110204829A (en) * | 2019-06-18 | 2019-09-06 | 南通展鹏塑料有限公司 | A kind of PP plastics of high tensile and preparation method thereof |
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| CN113896991A (en) * | 2021-10-14 | 2022-01-07 | 上海金发科技发展有限公司 | Sprayable low-temperature impact-resistant polypropylene composite material and preparation method and application thereof |
| CN114316444A (en) * | 2021-12-28 | 2022-04-12 | 上海普利特复合材料股份有限公司 | Spraying-free long glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN116003908A (en) * | 2022-12-29 | 2023-04-25 | 重庆普利特新材料有限公司 | Special environment-friendly modified regenerated polypropylene composite material for closed-loop recycled flame-treatment-free paint spraying bumper and preparation method thereof |
| WO2024066487A1 (en) * | 2022-09-30 | 2024-04-04 | 天津金发新材料有限公司 | Polypropylene composite material having good paint adhesion, preparation therefor and use thereof |
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| CN109679219A (en) * | 2018-12-28 | 2019-04-26 | 金旸（厦门）新材料科技有限公司 | One kind exempting from flame treatment polypropylene material for automotive bumper and preparation method thereof |
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| CN111040295A (en) * | 2019-12-19 | 2020-04-21 | 广州市聚赛龙工程塑料股份有限公司 | Polypropylene composite material for low-shrinkage low-emission primer-free automobile parts and preparation method and application thereof |
| CN111500008A (en) * | 2019-12-25 | 2020-08-07 | 会通新材料股份有限公司 | Flame-treatment-free polypropylene material and preparation method and application thereof |
| CN111087697A (en) * | 2019-12-30 | 2020-05-01 | 浙江普利特新材料有限公司 | Long glass fiber reinforced polypropylene composite material with good adhesive property and preparation method thereof |
| CN112457590A (en) * | 2020-11-24 | 2021-03-09 | 上海金发科技发展有限公司 | Flame-treatment-free sprayable polypropylene composite material and preparation method thereof |
| CN112521692A (en) * | 2020-12-03 | 2021-03-19 | 江苏金发科技新材料有限公司 | Liquid crystal polymer material reinforced polypropylene composition and preparation method thereof |
| CN112625344A (en) * | 2020-12-09 | 2021-04-09 | 浙江普利特新材料有限公司 | Vehicle polypropylene composite material modified based on organic silicon-based amphiphilic polymer and preparation method thereof |
| CN112625344B (en) * | 2020-12-09 | 2023-10-31 | 浙江普利特新材料有限公司 | Vehicle polypropylene composite material modified based on organosilicon-based amphiphilic polymer and preparation method thereof |
| CN112679861A (en) * | 2020-12-15 | 2021-04-20 | 江苏金发科技新材料有限公司 | Flame-treatment-free polypropylene composition for automobile bumpers and preparation method thereof |
| CN113308052A (en) * | 2021-05-21 | 2021-08-27 | 万华化学（宁波）有限公司 | Sprayable modified polypropylene material and preparation method and application thereof |
| CN113308052B (en) * | 2021-05-21 | 2022-07-12 | 万华化学（宁波）有限公司 | Sprayable modified polypropylene material and preparation method and application thereof |
| CN113896991A (en) * | 2021-10-14 | 2022-01-07 | 上海金发科技发展有限公司 | Sprayable low-temperature impact-resistant polypropylene composite material and preparation method and application thereof |
| CN114316444A (en) * | 2021-12-28 | 2022-04-12 | 上海普利特复合材料股份有限公司 | Spraying-free long glass fiber reinforced polypropylene composite material and preparation method thereof |
| WO2024066487A1 (en) * | 2022-09-30 | 2024-04-04 | 天津金发新材料有限公司 | Polypropylene composite material having good paint adhesion, preparation therefor and use thereof |
| CN116003908A (en) * | 2022-12-29 | 2023-04-25 | 重庆普利特新材料有限公司 | Special environment-friendly modified regenerated polypropylene composite material for closed-loop recycled flame-treatment-free paint spraying bumper and preparation method thereof |
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