CN111875878A - Long glass fiber reinforced PP material and preparation method thereof - Google Patents
Long glass fiber reinforced PP material and preparation method thereof Download PDFInfo
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- CN111875878A CN111875878A CN202010594292.1A CN202010594292A CN111875878A CN 111875878 A CN111875878 A CN 111875878A CN 202010594292 A CN202010594292 A CN 202010594292A CN 111875878 A CN111875878 A CN 111875878A
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 79
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000001746 injection moulding Methods 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 238000010008 shearing Methods 0.000 claims abstract description 10
- 238000007598 dipping method Methods 0.000 claims description 14
- 238000005470 impregnation Methods 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 5
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- 238000000034 method Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000008187 granular material Substances 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 239000011159 matrix material Substances 0.000 abstract description 7
- 229920005992 thermoplastic resin Polymers 0.000 abstract description 7
- 230000008707 rearrangement Effects 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 10
- -1 polypropylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 229920006805 PP-LGF Polymers 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
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- 229910052782 aluminium Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
- B29C2045/0008—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements the fibres being oriented randomly
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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Abstract
The invention discloses a long glass fiber reinforced PP material and a preparation method thereof, wherein a long glass fiber bundle coated with a mixed melt is input into a single-screw injection molding machine for shearing and mixing; the single glass fiber coated with the thermoplastic resin matrix is not subjected to grain cutting operation, and directly enters a single screw injection molding machine for shearing and mixing, so that the problems of glass fiber fracture and glass fiber rearrangement caused by secondary injection remelting of granules are avoided, and the product performance is ensured.
Description
Technical Field
The invention belongs to the technical field of PP material modification, and particularly relates to a long glass fiber reinforced PP material and a preparation method thereof.
Background
The light weight of the automobile becomes the focus of the research and development of new automobiles nowadays, and the aim of light weight is to be achieved, besides the optimization of structure and process design, most of the light weight of the automobile is centered on the selection of materials.
The glass fiber reinforced composite material can greatly improve the toughness, rigidity and durability of the original material, and is widely applied to automobile parts.
Glass fiber reinforced composites are divided into short glass fiber reinforcements and long glass fiber reinforcements. Compared with long glass fiber reinforced materials, short glass fiber reinforced materials have the defects of easy warping, poor low-temperature toughness, general fatigue resistance and the like.
At present, the most common method for producing long glass fiber reinforced polypropylene (PP-LGF) is melt impregnation, which is characterized by: firstly, dispersing glass fiber bundles into single glass fibers, heating and melting a thermoplastic resin matrix while dispersing, then impregnating the dispersed single glass fibers after melting the thermoplastic resin matrix, and then granulating and drying the single glass fibers coated with the thermoplastic resin matrix and coming out of an impregnation die.
The way of spreading the glass fiber bundles: generally, a continuous fiber bundle is subjected to a certain tension and then dispersed by a series of disordered combinations.
After the granules are cut, the length of the glass fiber in the granules is the same as the length of the granules controlled by actual granules, and ideally, more glass fibers with the length larger than the critical length exist in the secondary injection molding product, so that better reinforcing effect and size stability are obtained.
In the actual production process, the physical property state of the granules granulated for the first time is found to be excellent, and the physical property loss of the actual product after the secondary injection molding is serious because the glass fibers in the granules after the cutting are melted and dispersed again during the secondary injection molding feeding and are damaged seriously. If the fiber content is continuously increased, the fiber floating on the appearance of the product is serious, and the requirement of the appearance piece of the product is not met.
Disclosure of Invention
The invention provides a long glass fiber reinforced PP material and a preparation method thereof, so that a single glass fiber coated with a thermoplastic resin matrix is directly fed into a single-screw injection molding machine for shearing and mixing without carrying out granulation operation, the problems of glass fiber fracture and glass fiber rearrangement caused by secondary injection and remelting of granules are avoided, and the product performance is ensured.
In order to achieve the purpose, the invention adopts the technical scheme that: comprises the following raw materials in percentage by mass,
66 to 70 percent of PP resin,
29 to 33 percent of LGF,
0.2 to 0.4 percent of PP-g-MAH,
0.1 to 0.3 percent of silane coupling agent,
0.5 to 0.8 percent of glass fiber dispersing agent,
0.2 to 0.4 percent of antioxidant.
Preferably, the components are composed of the following components in relatively good parts by mass,
the content of PP resin is 67 percent,
the content of LGF is 31.5%,
0.3 percent of PP-g-MAH,
0.3 percent of silane coupling agent,
0.5 percent of glass fiber dispersant,
0.4 percent of antioxidant.
Preferably, the flowability MI of the PP resin is 40-60 g/min.
Preferably, the LGF has a diameter of 10 μm.
Preferably, the PP-g-MAH is GPM 200A.
Preferably, the silane coupling agent is KH-550, and the purity is more than or equal to 97%.
Preferably, the glass fiber dispersing agent is TAF, and the melting point is more than or equal to 135 ℃.
Preferably, the antioxidant is B225.
A preparation method of a long glass fiber reinforced PP material comprises the following steps,
the method comprises the following steps: mixing raw materials, putting 67% of PP resin, 0.3% of PP-g-MAH, 0.3% of silane coupling agent, 0.5% of glass fiber dispersing agent and 0.4% of antioxidant by mass into a high-speed stirrer, and uniformly stirring;
step two: selecting a double-screw extruder with a proper screw lead according to the original viscosity of the PP resin, starting the double-screw extruder to drive the double screws to rotate, and controlling the melting temperature of the double-screw extruder to be 190-220 ℃;
step three: feeding raw materials, namely feeding the uniformly mixed and stirred raw materials in the step one into a double-screw extruder from a feeding port for shearing and mixing, and then feeding the raw materials into an impregnation device;
step four: dispersing the long glass fiber bundles into single long glass fibers;
step five: conveying the single long glass fiber in the fourth step into a dipping die in a dipping device through a multi-groove guide wheel, and finishing the dipping of the mixed melt to the single long glass fiber bundle in the dipping die;
step six: and D, inputting the long glass fiber bundles coated with the mixed melt in the step five into a single-screw injection molding machine for shearing and mixing.
Preferably, the rotating speed of the twin-screw in the twin-screw extruder in the step two is 300-400 r/min; the dipping temperature of the dipping die in the fifth step is 270 +/-10 ℃, and the retention time in the dipping die is 80 s; the length-diameter ratio of the single-screw injection molding machine in the sixth step is 16:1-22:1, and the compression ratio is 2:1-2.5: 1.
The beneficial effect of adopting above technical scheme is:
1. the long glass fiber reinforced polypropylene (PP-LGF) material has the obvious characteristics of high specific strength, high specific modulus, strong impact resistance, stable size, low warping degree and the like because the long glass fiber reinforced polypropylene has longer retention length in a product. Compared with metal materials such as steel, aluminum and the like and thermosetting composite materials, the long glass fiber reinforced polypropylene (PP-LGF) can provide greater design flexibility for designers, can mold automobile parts with complex shapes, reduces the use number of parts in products, and saves the cost of a mold.
2. According to the preparation method of the long glass fiber reinforced PP material, the long glass fiber bundle coated with the mixed melt in the fifth step is input into the single-screw injection molding machine for shearing and mixing, so that the single glass fiber coated with the thermoplastic resin matrix is directly fed into the single-screw injection molding machine for shearing and mixing without carrying out granulation operation, the problems of glass fiber fracture and glass fiber rearrangement caused by secondary injection remelting of granules are avoided, and the product performance is ensured.
Drawings
FIG. 1 is a schematic flow chart of a preparation method of the long glass fiber reinforced PP material;
FIG. 2 is the results of the experimental tests of example 1;
FIG. 3 is the results of the experimental tests of example 2;
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1 to 3, the invention relates to a long glass fiber reinforced PP material and a preparation method thereof, which enables single glass fiber coated with a thermoplastic resin matrix to directly enter a single screw injection molding machine for shearing and mixing without carrying out a granulation operation, avoids the problems of glass fiber fracture and glass fiber rearrangement caused by re-melting of secondary injection molding of granules, and ensures the product performance.
Specifically, the technical effects of the injection-molded product are illustrated by comparative tests.
Example 1:
putting PP 66 with the mass percent fluidity MI larger than 30g/10min, 0.5 percent of glass fiber dispersing agent, 0.1 percent of silane coupling agent, 0.2 percent of PP-g-MAH and 0.2 percent of antioxidant into a high-speed stirrer, uniformly stirring, adding into a double-screw extruder, wherein the processing temperature can refer to 180 ℃, 195 ℃, 200 ℃, 215 ℃, 220 ℃, 225 ℃ and the double-screw rotating speed is 350r/min, and the screw combination is the conventional plasticizing screw combination. The glass fiber enters an impregnation die in an impregnation device according to single strand, and the temperature of the impregnation die is kept at 270 ℃ to ensure a plasticizing state, and the whole weight ratio is controlled at 33%. Fully soakingThe impregnated glass fiber is fed and input into an injection molding machine through a positioning pump, the length-diameter ratio of a single screw of the injection molding machine is 18:1, and the compression ratio is 2.2: 1. The area of the gate is about 7.6mm2The temperature of the injection machine is set to 215 ℃ (charging section) -235 ℃ (compressing section) -230 ℃ (homogenizing section), the nozzle temperature is about 225 ℃, the injection pressure is 45MPa, and the back pressure is 8 MPa. The mold temperature was controlled at 65 ℃ by a mold temperature control machine. And (3) annealing the injection-molded product at 60 ℃, and performing related experimental tests on the product for about 10min according to beat control. The results of the modal test and the vibration test have obvious advantages, and the strength of the primary injection molding product is obviously higher than that of the secondary injection molding product. The appearance evaluation has slight burr acceptance, which shows that although the plasticizing capacity is improved on the plasticizing temperature and the process, the compatibility state of the long glass fiber and the PP resin has room for improvement.
Example 2:
in order to improve the compatibility of the glass fiber and the PP resin, the glass fiber is treated by a silane coupling agent before entering an impregnation device, and the interface bonding strength is increased. Putting PP 67 percent with the fluidity MI of more than 30g/10min, 0.5 percent of glass fiber dispersing agent, 0.3 percent of PP-g-MAH and 0.4 percent of antioxidant into a high-speed stirrer, uniformly stirring, and then adding into a double-screw extruder, wherein the processing temperature refers to 190 ℃, 195 ℃, 210 ℃, 220 ℃, and the double-screw rotating speed is 300r/min, and the screw combination is the conventional plasticizing screw combination. The glass fiber enters an impregnation die in an impregnation device according to single strand, and the temperature of the impregnation die is kept at 260 ℃ to ensure a plasticizing state, and the whole weight ratio is controlled at 31%. The fully impregnated glass fiber is fed and input into an injection molding machine through a positioning pump, the length-diameter ratio of a single screw of the injection molding machine is 18:1, and the compression ratio is 2.2: 1. The area of the gate is about 7.6mm2The temperature of the injection machine is set to be 205 ℃ (a charging section) -235 ℃ (a compression section) -225 ℃ (a homogenizing section), the nozzle temperature is about 215 ℃, the injection pressure is 40MPa, and the back pressure is 10 MPa. The mold temperature was controlled at 65 ℃ by a mold temperature control machine. And (3) annealing the injection-molded product at 60 ℃, and performing related experimental tests on the product for about 10min according to beat control. The vibration test result has obvious advantages, the modal test and the vibration test result have obvious advantages, and the strength of the primary injection molding product is obviously higher than that of the secondary injection molding product. Appearance evaluation is burr-free, which shows that the long glass fiber has high impregnation degree and uniform distribution, and fully exerts the reinforcing effect.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various insubstantial modifications of the invention based on the principles and technical solutions of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (10)
1. A long glass fiber reinforced PP material is characterized in that: comprises the following raw materials in percentage by mass,
66 to 70 percent of PP resin,
29 to 33 percent of LGF,
0.2 to 0.4 percent of PP-g-MAH,
0.1 to 0.3 percent of silane coupling agent,
0.5 to 0.8 percent of glass fiber dispersing agent,
0.2 to 0.4 percent of antioxidant.
2. A long glass fibre reinforced PP material according to claim 1, characterized in that: the components are prepared according to the preferred mass portion,
the content of PP resin is 67 percent,
the content of LGF is 31.5%,
0.3 percent of PP-g-MAH,
0.3 percent of silane coupling agent,
0.5 percent of glass fiber dispersant,
0.4 percent of antioxidant.
3. A long glass fibre reinforced PP material according to claim 1, characterized in that: the fluidity MI of the PP resin is 40-60 g/min.
4. A long glass fibre reinforced PP material according to claim 1, characterized in that: the diameter of the LGF was 10 μm.
5. A long glass fibre reinforced PP material according to claim 1, characterized in that: the PP-g-MAH is GPM 200A.
6. A long glass fibre reinforced PP material according to claim 1, characterized in that: the silane coupling agent is KH-550, and the purity is more than or equal to 97%.
7. A long glass fibre reinforced PP material according to claim 1, characterized in that: the glass fiber dispersing agent is TAF, and the melting point is more than or equal to 135 ℃.
8. A long glass fibre reinforced PP material according to claim 1, characterized in that: the antioxidant is B225.
9. A preparation method of a long glass fiber reinforced PP material is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
the method comprises the following steps: mixing raw materials, putting 67% of PP resin, 0.3% of PP-g-MAH, 0.3% of silane coupling agent, 0.5% of glass fiber dispersing agent and 0.4% of antioxidant by mass into a high-speed stirrer, and uniformly stirring;
step two: selecting a double-screw extruder with a proper screw lead according to the original viscosity of the PP resin, starting the double-screw extruder to drive the double screws to rotate, and controlling the melting temperature of the double-screw extruder to be 190-220 ℃;
step three: feeding raw materials, namely feeding the uniformly mixed and stirred raw materials in the step one into a double-screw extruder from a feeding port for shearing and mixing, and then feeding the raw materials into an impregnation device;
step four: dispersing the long glass fiber bundles into single long glass fibers;
step five: conveying the single long glass fiber in the fourth step into a dipping die in a dipping device through a multi-groove guide wheel, and finishing the dipping of the mixed melt to the single long glass fiber bundle in the dipping die;
step six: and D, inputting the long glass fiber bundles coated with the mixed melt in the step five into a single-screw injection molding machine for shearing and mixing.
10. The method for preparing a long glass fiber reinforced PP material according to claim 9, wherein: the rotating speed of the twin-screw in the twin-screw extruder in the step two is 300-400 r/min; the dipping temperature of the dipping die in the fifth step is 270 +/-10 ℃, and the retention time in the dipping die is 80 s; the length-diameter ratio of the single-screw injection molding machine in the sixth step is 16:1-22:1, and the compression ratio is 2:1-2.5: 1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976405A (en) * | 2021-02-06 | 2021-06-18 | 台州维一新材料有限公司 | Online forming method of long fiber reinforced thermoplastic resin product |
| CN115475780A (en) * | 2022-09-26 | 2022-12-16 | 金海龙 | Preparation process of PP composite material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935420A (en) * | 2010-08-26 | 2011-01-05 | 上海耀华大中新材料有限公司 | Automobile bottom deflector made of LFT-D (Fiber Reinforce Thermoplastic-Direct) material and manufacture method thereof |
| CN103073782A (en) * | 2011-10-25 | 2013-05-01 | 合肥杰事杰新材料股份有限公司 | Automobile instrument framework material and manufacturing method thereof |
| CN103788470A (en) * | 2012-10-30 | 2014-05-14 | 中国石油化工股份有限公司 | Long glass fiber-reinforced polypropylene composition product |
| CN104277328A (en) * | 2014-09-25 | 2015-01-14 | 上海耀华大中新材料有限公司 | LFT-D automobile seat framework and manufacturing method thereof |
| CN105367897A (en) * | 2015-11-19 | 2016-03-02 | 金发科技股份有限公司 | Glass fiber reinforced modified polypropylene material and preparation method thereof |
| US20170081504A1 (en) * | 2014-05-15 | 2017-03-23 | Lg Hausys, Ltd. | Long fiber reinforced plastic composite material and method for manufacturing long fiber reinforced plastic composite material |
-
2020
- 2020-06-28 CN CN202010594292.1A patent/CN111875878A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935420A (en) * | 2010-08-26 | 2011-01-05 | 上海耀华大中新材料有限公司 | Automobile bottom deflector made of LFT-D (Fiber Reinforce Thermoplastic-Direct) material and manufacture method thereof |
| CN103073782A (en) * | 2011-10-25 | 2013-05-01 | 合肥杰事杰新材料股份有限公司 | Automobile instrument framework material and manufacturing method thereof |
| CN103788470A (en) * | 2012-10-30 | 2014-05-14 | 中国石油化工股份有限公司 | Long glass fiber-reinforced polypropylene composition product |
| US20170081504A1 (en) * | 2014-05-15 | 2017-03-23 | Lg Hausys, Ltd. | Long fiber reinforced plastic composite material and method for manufacturing long fiber reinforced plastic composite material |
| CN104277328A (en) * | 2014-09-25 | 2015-01-14 | 上海耀华大中新材料有限公司 | LFT-D automobile seat framework and manufacturing method thereof |
| CN105367897A (en) * | 2015-11-19 | 2016-03-02 | 金发科技股份有限公司 | Glass fiber reinforced modified polypropylene material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976405A (en) * | 2021-02-06 | 2021-06-18 | 台州维一新材料有限公司 | Online forming method of long fiber reinforced thermoplastic resin product |
| CN115475780A (en) * | 2022-09-26 | 2022-12-16 | 金海龙 | Preparation process of PP composite material |
| CN115475780B (en) * | 2022-09-26 | 2023-09-26 | 广州市文逸通讯设备有限公司 | Preparation process of PP composite material |
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Application publication date: 20201103 |