CN114425890B - Glass fiber cloth/polypropylene composite material and preparation method and application thereof - Google Patents
Glass fiber cloth/polypropylene composite material and preparation method and application thereof Download PDFInfo
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- CN114425890B CN114425890B CN202011179761.XA CN202011179761A CN114425890B CN 114425890 B CN114425890 B CN 114425890B CN 202011179761 A CN202011179761 A CN 202011179761A CN 114425890 B CN114425890 B CN 114425890B
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- 239000004744 fabric Substances 0.000 title claims abstract description 133
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 119
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 119
- 239000003365 glass fiber Substances 0.000 title claims abstract description 117
- 239000002131 composite material Substances 0.000 title claims abstract description 67
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- -1 polypropylene Polymers 0.000 claims abstract description 69
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 63
- 230000010355 oscillation Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000000725 suspension Substances 0.000 claims description 48
- 239000007822 coupling agent Substances 0.000 claims description 34
- 238000001035 drying Methods 0.000 claims description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 18
- 239000002904 solvent Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 238000012986 modification Methods 0.000 claims description 14
- 230000004048 modification Effects 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 10
- 238000001354 calcination Methods 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 5
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims 26
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 239000010410 layer Substances 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 6
- 239000003963 antioxidant agent Substances 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009775 high-speed stirring Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- PRWJPWSKLXYEPD-UHFFFAOYSA-N 4-[4,4-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)butan-2-yl]-2-tert-butyl-5-methylphenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(C)CC(C=1C(=CC(O)=C(C=1)C(C)(C)C)C)C1=CC(C(C)(C)C)=C(O)C=C1C PRWJPWSKLXYEPD-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007676 flexural strength test Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
- C08J5/18—Manufacture of films or sheets
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
-
- 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
-
- 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
Abstract
The application relates to a glass fiber cloth/polypropylene composite material and a preparation method and application thereof, belonging to the technical field of high polymer materials. The glass fiber cloth/polypropylene composite material comprises a polypropylene film and glass fiber cloth; the polypropylene film and the glass fiber cloth are alternately overlapped; the number of layers of the polypropylene film is A, and the number of layers of the glass fiber cloth is B, wherein A is more than or equal to 2; b is more than or equal to 1; A-B is more than or equal to 1; preferably, A is more than or equal to 20 and more than or equal to 2; 19. b is more than or equal to 1; A-B is more than or equal to 1; the glass fiber cloth is surface modified glass fiber cloth, preferably nano SiO dispersed by ultrasonic oscillation mode 2 And nano SiO 2 And modifying the surface of the glass fiber cloth by a chemical grafting method to obtain the glass fiber cloth. The composite material can obviously improve the interlaminar shear performance of the composite material and realize the optimization of the comprehensive mechanical properties of interfaces; and the tensile property and the bending property are obviously improved.
Description
Technical Field
The application relates to the technical field of high polymer materials, in particular to a glass fiber cloth/polypropylene composite material, a preparation method and application thereof.
Background
Glass fiber reinforced resin matrix composite materials are widely used in the fields of aerospace, automobile industry, petrochemical industry and the like due to high specific strength, high specific modulus and designability. The glass fiber reinforced thermoplastic resin matrix composite is favored by industry and academia due to the advantages of excellent comprehensive mechanical properties, long prepreg storage period, short product forming period, recoverability and the like.
In the construction of fiber reinforced composites, the interfacial phase serves a very critical bonding function between the reinforcing phase and the matrix phase, with varying degrees of impact on the various properties of the composite. There are two general methods of interface optimization: fiber surface treatment and matrix modification.
Chinese patent CN111409293a discloses a method for impregnating an ultrasonic-reinforced long-fiber-reinforced polymer composite material and an ultrasonic-reinforced long-fiber-reinforced polymer composite material, in which an ultrasonic vibration device is added in a melt-impregnating die head, the ultrasonic vibration device acts on a polymer melt, the ultrasonic vibration drives the vibration of the polymer melt in the melt-impregnating die head, the viscosity of the melt is reduced, and the impregnation efficiency and the impregnation degree are improved. The ultrasonic vibration has the effect of reducing the viscosity of the matrix, but does not enable the resin to form chemical bonds with the surface of the glass fiber, so that effective interface bonding is difficult to obtain by a method of treating the glass fiber with a coupling agent; the application patent CN1487022A discloses a preparation method of a rare earth modified glass fiber/polypropylene composite material, which adopts a rare earth modifier to carry out surface modification on the glass fiber, improves the interfacial binding force between the glass fiber and a high polymer matrix material, and improves the mechanical property of the composite material, but adopts a rare earth modifier composed of a plurality of components (rare earth compound, ethanol, ethylenediamine tetraacetic acid, ammonium chloride, nitric acid and urea), and the modification effect on the glass fiber can be ensured only by accurately controlling the reaction condition.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a glass fiber cloth/polypropylene composite material. In particular to a glass fiber cloth/polypropylene composite material, a preparation method and application thereof.
One of the objects of the present application is to provide a glass cloth/polypropylene composite material, which can comprise a polypropylene film and a glass cloth; the polypropylene film and the glass fiber cloth are alternately overlapped; the number of layers of the polypropylene film is A, the number of layers of the glass fiber cloth is B,
wherein A is more than or equal to 2; b is more than or equal to 1; A-B is more than or equal to 1; preferably, A is more than or equal to 20 and more than or equal to 2; 19. b is more than or equal to 1; A-B is more than or equal to 1; the glass fiber cloth is surface modified glass fiber cloth, preferably nano SiO dispersed by ultrasonic oscillation mode 2 And nano SiO 2 And modifying the surface of the glass fiber cloth by a chemical grafting method to obtain the glass fiber cloth.
Wherein,
the film thickness of the polypropylene film is 0.01-0.50 mm; preferably 0.05 to 0.35mm;
the thickness of the glass fiber cloth is 0.05-6.0 mm; preferably 0.2 to 1.3mm;
preferably, the thickness of the glass fiber cloth/polypropylene composite material is 0.05-6.0 mm.
In the course of the specific implementation of this embodiment,
the preparation method of the surface modification treatment glass fiber cloth can comprise the following steps:
nano SiO 2 Adding solvent to prepare nano SiO 2 A suspension; ultrasonic vibration of the nano SiO 2 A suspension; immersing glass fiber cloth into the nano SiO 2 Soaking in the suspension, and drying; then immersing the treated glass fiber cloth into a coupling agent solution, immersing and drying to obtain the glass fiber cloth;
preferably, the preparation method of the surface modification treatment glass fiber cloth can comprise the following steps:
(1) Preparation of nano SiO 2 Suspension: nano SiO 2 Adding the mixture into a solvent, and stirring to obtain nano SiO 2 A suspension; preferably, the stirring speed is 1000-2000 r/min, and the stirring time is 1-2 h;
(2) Preparing a coupling agent solution: adding a coupling agent into a solvent, and uniformly stirring to obtain a coupling agent solution; preferably, the concentration of the coupling agent solution is 0.1 to 1wt%, preferably 0.25wt% to 0.75wt%;
(3) The nano SiO obtained by the step (1) 2 Carrying out ultrasonic vibration on the suspension; immersing the glass fiber cloth into nano SiO 2 Taking out the suspension and drying;
(4) Immersing the glass fiber cloth treated in the step (3) into a coupling agent solution, taking out and drying to obtain the surface modified glass fiber cloth.
Wherein the nano SiO 2 Nano SiO in suspension 2 The concentration of (2) is 0.05 to 1wt%, preferably 0.1 to 0.8wt%, more preferably 0.1 to 0.5wt%, still more preferably 0.15 to 0.3wt%.
In the step (1) and the step (2),
the solvents are all alcohol solutions, preferably ethanol solutions and/or polyethylene glycol solutions;
the volume concentration of the alcohol solution is 20-95%, preferably 50-75%; more preferably 70% -75%;
in the step (3), the step of (c),
the power of the ultrasonic oscillation is 40-360 w, the frequency is 25-100 KHz, preferably the power is 80-120 w, and the frequency is 28-60 KHz; for nano SiO 2 The time of the suspension liquid for ultrasonic oscillation is 0.5-1.5 h;
immersing glass fiber cloth into nano SiO 2 The suspension is in the period of 5-30 min;
in the steps (3) and (4),
the drying temperature is 30-120 ℃, preferably 80-100 ℃, and the drying time is 1-6 h, preferably 2-3 h;
in the step (4), the time for immersing in the coupling agent solution may be 10 to 30 minutes.
The coupling agent can be a silane coupling agent, preferably at least one selected from gamma-aminopropyl triethoxysilane or gamma-2, 3-glycidoxy-propyl trimethoxysilane.
The polypropylene film material comprises the following components in percentage by weight based on 100% of the total weight of the polypropylene film material:
82-95 wt% of polypropylene and 5-18 wt% of compatilizer; preferably 85-90 wt% of polypropylene and 10-15 wt% of compatilizer.
The melt flow rate of the polypropylene is 1-15 g/10min, preferably 2-10 g/10min under the conditions of 230 ℃ and a load of 2.16 kg; the polypropylene is at least one selected from isotactic polypropylene, syndiotactic polypropylene and atactic polypropylene; and/or the number of the groups of groups,
the compatilizer is maleic anhydride grafted polypropylene, and the density is 0.89-0.96 g/cm 3 The melting point is 130-180 ℃, and the melt flow rate (230 ℃,2.16 Kg) is 7-200 g/10min.
The second purpose of the application is to provide a preparation method of the glass fiber cloth/polypropylene composite material, which comprises the following steps:
(1) Preparing a polypropylene film: uniformly mixing the components including the polypropylene and the compatilizer according to the dosage to prepare a polypropylene film;
(2) And (3) placing the surface modified glass fiber cloth and the polypropylene film into a mold, and pressing to obtain the glass fiber cloth/polypropylene composite material. The conditions of the pressing may be: pressing for 5-20min at 160-220 ℃ and 0.5-3 Mpa.
The application further aims to provide application of the glass fiber cloth/polypropylene composite material in the fields of automobiles, electronics, communication and construction.
In the practice of the present application,
one of the purposes of the application is to provide a glass fiber cloth/polypropylene composite material which can comprise a polypropylene film and glass fiber cloth; the polypropylene film and the glass fiber cloth are alternately overlapped;
the number of layers of the polypropylene film is A, the number of layers of the glass fiber cloth is B,
wherein A is more than or equal to 2; b is more than or equal to 1; A-B is more than or equal to 1; preferably, A is more than or equal to 20 and more than or equal to 2; 19. b is more than or equal to 1; A-B is more than or equal to 1; preferably, A is more than or equal to 10 and more than or equal to 2, B is more than or equal to 9 and more than or equal to 1; further preferably, A is more than or equal to 10 and more than or equal to 3, and B is more than or equal to 9 and more than or equal to 1;
the glass fiber cloth is surface modified glass fiber cloth, preferably nano SiO dispersed by ultrasonic oscillation mode 2 And nano SiO 2 And modifying the surface of the glass fiber cloth by a chemical grafting method to obtain the glass fiber cloth.
In some implementations of the present application,
the film thickness of the polypropylene film can be 0.01-0.50 mm; preferably 0.05 to 0.35mm;
the thickness of the glass fiber cloth can be 0.05-6.0 mm; preferably 0.2 to 1.3mm;
preferably, the method comprises the steps of,
the thickness of the glass fiber cloth/polypropylene composite material can be 0.05-6.0 mm.
The alternately overlapped structure of the glass fiber cloth/polypropylene composite material is used for immersing the molten film into the glass fiber cloth; the polypropylene film is not limited to only one layer to be laid in each adding process, and can be multi-layer; the glass fiber cloth can be laid in multiple layers simultaneously when being added at one time; in addition, the material can be alternatively laid with equal thickness or different thickness; depending on the thickness of the fiber cloth and the thickness of the film and its impregnation effect, it can be adjusted according to specific needs.
The uniformly dispersed nano particles have excellent specific surface area and high surface activity, and are ideal materials for composite modification. However, if larger agglomerates are generated due to uneven dispersion, the modified effect is greatly reduced only by the filler, and the dispersion degree of the modified filler has great influence on the modified effect of the material. The application adopts an ultrasonic vibration mode to disperse nano SiO on the basis of high-speed stirring 2 Suspension and adding nano SiO 2 And modifying the surface of the glass fiber cloth by a chemical grafting method to obtain the glass fiber cloth. The ultrasonic dispersion has the advantages of high quality, high efficiency, green environmental protection and the like, and the key is cavitation effect, and nano SiO is subjected to cavitation of ultrasonic waves 2 Dispersing and depolymerizing to make nano SiO 2 The dispersion stability in the aqueous phase is remarkably improved; silanol groups generated by the hydrolysis reaction of the coupling agent can be used with glass fibers and nano SiO 2 Condensation polymerization of surface hydroxyl groups to thereby convert SiO 2 Chemically grafted to the fiber surface. The application adopts silane coupling agent to make nano SiO 2 The grafting to the surface of the glass fiber can simply and efficiently improve the interface performance of the composite material, save the cost and have the possibility of being put into industrial production.
Wherein,
the preparation method of the surface modification treatment glass fiber cloth can comprise the following steps:
nano SiO 2 Adding solvent to prepare nano SiO 2 A suspension; ultrasonic vibration of the nano SiO 2 A suspension; immersing glass fiber cloth into the nano SiO 2 Soaking in the suspension, and drying; then immersing the treated glass fiber cloth into a coupling agent solution, immersing and drying to obtain the glass fiber cloth;
preferably, the preparation method of the surface modification treatment glass fiber cloth comprises the following steps:
(1) Preparation of nano SiO 2 Suspension: nano SiO 2 Adding the mixture into a solvent, and stirring to obtain nano SiO 2 A suspension; mechanical stirring can be used; preferably, the stirring speedThe temperature is 1000-2000 r/min, and the stirring time is 1-2 h;
(2) Preparing a coupling agent solution: adding a coupling agent into a solvent, and uniformly stirring to obtain a coupling agent solution; preferably, the concentration of the coupling agent solution may be 0.1 to 1wt%, preferably 0.25wt% to 0.75wt%, more preferably 0.45 to 0.65wt%;
(3) The nano SiO obtained by the step (1) 2 Carrying out ultrasonic vibration on the suspension; immersing the glass fiber cloth into nano SiO 2 Taking out the suspension and drying;
(4) Immersing the glass fiber cloth treated by the step (3) into the coupling agent solution prepared by the step (2), taking out and drying to obtain the surface modified glass fiber cloth.
Wherein,
the nano SiO 2 The average grain diameter of the catalyst can be 15-150 nm, and the specific surface area can be more than or equal to 150m 2 /g。
The nano SiO 2 Nano SiO in suspension 2 The concentration of (2) may be 0.05 to 1wt%, preferably 0.1 to 0.8wt%, more preferably 0.1 to 0.5wt%, still more preferably 0.15 to 0.3wt%.
The coupling agent is a silane coupling agent, and can be preferably selected from at least one of gamma-aminopropyl triethoxysilane (silane coupling agent KH 550) or gamma-2, 3-glycidoxy-propyl trimethoxysilane (KH 560).
Before the glass fiber cloth is used, pretreatment can be carried out; the pretreatment is as follows: calcining the glass fiber cloth (a muffle furnace can be used specifically); wherein the calcination temperature is 200-400 ℃ and the calcination time is 30-60min.
Wherein,
in the step (1) and the step (2),
the solvents are all alcohol solutions, preferably ethanol solutions and/or polyethylene glycol solutions;
the volume concentration of the solvent may be 20% to 95% (v/v), and may preferably be 50% to 75%; more preferably 70% -75%;
in the step (3), the step of (c),
the power of the ultrasonic oscillation can be 40-360 w, and the frequencyMay be 25-100 KHz, preferably 80-120 w, and 28-60 KHz; for nano SiO 2 The time for carrying out ultrasonic oscillation on the suspension liquid can be 0.5-1.5 h;
immersing glass fiber cloth into nano SiO 2 The suspension time can be 5-30 min;
in the steps (3) and (4),
the drying temperature can be 30-120 ℃, preferably 80-100 ℃, and the drying time can be 1-6 h, preferably 2-3 h;
in the above-mentioned (4), the step of,
the time of immersion in the coupling agent solution may be 10 to 30 minutes.
Specifically, the preparation method of the surface modification treatment glass fiber cloth comprises the following steps:
(1) Firstly, calcining the glass fiber cloth in a muffle furnace at 200-400 ℃ for 30-60min to remove the original surface treating agent.
(2) Nano SiO 2 The preparation method of the suspension comprises the following steps: nano SiO 2 Adding the mixture into a solvent, and stirring the mixture by an electric stirrer to obtain nano SiO 2 A suspension; preferably, the stirring speed is 1000-2000 r/min, and the stirring time is 1-2 h.
(3) The preparation method of the coupling agent solution comprises the following steps: adding the coupling agent into the solvent, and uniformly stirring.
(4) Stirring the nano SiO obtained by the step (2) 2 Placing the suspension in an ultrasonic cleaner, and performing ultrasonic oscillation; immersing the glass fiber cloth treated by the step (1) into nano SiO 2 And taking out the suspension for 10-30 min, and drying in an electrothermal constant-temperature blast drying oven. The power of the ultrasonic oscillation can be 40-360 w, the frequency is 25-100 KHz, the power is preferably 80-120 w, and the frequency is 28-60 KHz; the drying temperature may be 30-120 ℃, preferably 80-100 ℃, and the drying time may be 1-6 hours, preferably 2-3 hours.
On the basis of high-speed stirring, the nano SiO is dispersed by adopting an ultrasonic vibration mode 2 The interlayer bonding effect of the composite material can be improved; but with nano SiO 2 The higher the concentration of the suspension, the more serious the agglomeration of the nanoparticles, the poorer the interface bonding effectThereby affecting the interlaminar shear strength. The application relates to a nano SiO 2 Nano SiO in suspension 2 The concentration of (2) may be 0.05 to 1wt%, preferably 0.1 to 0.8wt%, more preferably 0.1 to 0.5wt%, still more preferably 0.15 to 0.3wt%.
(5) Immersing the glass fiber cloth treated by the step (4) into the coupling agent solution prepared by the step (3) for 10-30 min, taking out, and drying in an electrothermal constant-temperature blast drying oven, wherein the drying temperature can be 30-120 ℃, preferably 80-100 ℃, and the drying time can be 1-6 h, preferably 2-3 h. The surface modified glass fiber cloth can be prepared.
The polypropylene film material may comprise the following components in 100% by total weight of the polypropylene film material:
82-95 wt% of polypropylene and 5-18 wt% of compatilizer; preferably 85-90 wt% of polypropylene and 10-15 wt% of compatilizer.
The melt flow rate of the polypropylene can be 1-15 g/10min, preferably 2-10 g/10min under the conditions of 230 ℃ and a load of 2.16 kg; the polypropylene is at least one selected from isotactic polypropylene, syndiotactic polypropylene and atactic polypropylene; and/or the number of the groups of groups,
the compatilizer can be maleic anhydride grafted polypropylene, and concretely, the density can be 0.89-0.96 g/cm 3 The melting point may be 130-180 ℃, the melt flow rate (230 ℃,2.16 Kg) may be 7-200 g/10min, and the grafting ratio of maleic anhydride may be 0.8-1.2%.
In some implementations of the application, the polypropylene film material may further comprise an antioxidant in an amount of 0.1 to 3wt% based on the total weight of the polypropylene film material. The antioxidant is one or two of antioxidant 1010, antioxidant 1076, antioxidant 2246, antioxidant CA, antioxidant 626 or antioxidant 636.
The second purpose of the application is to provide a preparation method of the glass fiber reinforced polypropylene composite material, which comprises the following steps:
(1) Preparing a polypropylene film: adding the components of the polypropylene and the compatilizer into a high-speed mixer according to the dosage, and uniformly mixing to prepare the polypropylene film; specifically, a device commonly used in the art such as a casting machine or the like can be used;
(2) And alternately placing the surface-modified glass fiber cloth and the polypropylene film into a mold, and pressing to obtain the glass fiber cloth/polypropylene composite material.
In the step (2), the pressing conditions are as follows: pressing in a molding press at 160-220 deg.c and 0.5-3 MPa for 5-20min.
The application further aims to provide application of the glass fiber reinforced polypropylene composite material in the fields of automobiles, electronics, communication and construction.
Detailed Description
The present application is described in detail below with reference to specific embodiments, and it should be noted that the following embodiments are only for further description of the present application and should not be construed as limiting the scope of the present application, and some insubstantial modifications and adjustments of the present application by those skilled in the art from the present disclosure are still within the scope of the present application.
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
Raw material source
Polypropylene, PPB-M02-V, purchased from China petrochemical Yangzi petrochemical industry;
glass fiber cloth, EWR400E-100 (400 g/m) 2 ) Purchased from zhejiang boulder group limited;
maleic anhydride grafted polypropylene, MD 353D, available from dupont, usa; (Density 0.94 g/cm) 3 Melting point 136℃and melt flow rate 8g/10 min)
Nano silica, average particle diameter: 30nm, specific surface area: 600m 2 /g, available from Beijing, kyodo island gold technologies Co., ltd;
absolute ethanol, B0301002, purchased from beijing chemical plant;
silane coupling agent (3-aminopropyl triethoxysilane), KH550, purchased from Nanjing Chen organic silicon materials Co.
Examples 1 to 3 and comparative examples 1 to 4
The preparation of the surface modified glass fiber cloth comprises the following steps of：
(1) And calcining the glass fiber cloth in a muffle furnace at 400 ℃ for 45min to remove the original surface treating agent.
(2) Nano SiO 2 The preparation method of the suspension comprises the following steps: nano SiO 2 Adding the mixture into ethanol solution with volume concentration of 75% to prepare nano SiO with different concentrations 2 The suspension (see table 1 in detail) is stirred in an electric stirrer to prepare nano SiO 2 The suspension was stirred at a speed of 1500r/min for 1h.
(3) The preparation method of the coupling agent solution comprises the following steps: coupling agent KH550 was added to 75% by volume ethanol solution and stirred well (see Table 1 for specific concentrations).
(4) Stirring the nano SiO obtained by the step (2) 2 Placing the mixed suspension in an ultrasonic cleaner, and oscillating for 1h at a power of 100w and a frequency of 40KHz (no ultrasonic oscillation exists in comparative examples 1-4); immersing the glass fiber cloth treated by the step (1) into the nano SiO prepared by the step (2) 2 The suspension is taken out for 15min, and is put into an electrothermal constant temperature blast drying oven for drying for 3h at 100 ℃.
(5) Immersing the glass fiber cloth treated in the step (4) into the KH550 coupling agent solution prepared in the step (3) for 15min, taking out, and drying in an electrothermal constant-temperature blast drying oven at 100 ℃ for 3h to obtain the surface-modified glass fiber cloth with the thickness of 0.4mm.
The specific technical scheme is shown in table 1:
table 1 surface modification of glass fiber
| Mass fraction (Nano SiO 2)% | Mass fraction (KH 550)/% | Ultrasonic vibration | |
| Comparative example 1 | 0 | 0 | -- |
| Comparative example 2 | 0.5 | 0 | -- |
| Comparative example 3 | 0 | 0.5 | -- |
| Comparative example 4 | 0.5 | 0.5 | -- |
| Example 1 | 0.25 | 0.5 | √ |
| Example 2 | 0.5 | 0.5 | √ |
| Example 3 | 0.75 | 0.5 | √ |
The preparation of the glass fiber cloth/polypropylene composite material comprises the following steps:
(1) Polypropylene films were prepared having a film thickness of about 0.3mm. The method comprises the following steps: 90 parts by weight of polypropylene, 10 parts by weight of compatilizer and 0.15 part by weight of antioxidant are added into a high-speed mixer to be uniformly mixed, and then added into a casting machine, and the polypropylene film with the thickness of 0.3mm is prepared by setting processing conditions.
(2) And alternately placing 4 layers of glass fiber cloth subjected to surface modification treatment and 5 layers of polypropylene films into a die, and pressing for 10min at 190 ℃ and 1Mpa in a die press to obtain the glass fiber cloth/polypropylene composite material with the thickness of 2mm.
Performance testing
The glass fiber cloth/polypropylene composites prepared in examples 1 to 3 and comparative examples 1 to 4 were subjected to the following performance tests:
interlaminar shear strength is measured according to JCT 773-2010 test standard; tensile strength was measured according to GBT1447-2005 test standard; flexural strength test was determined according to GBT1449-2005 test standard; the test results are shown in Table 1.
TABLE 1 Material Performance test results
| Interlaminar shear strength (MPa) | Tensile Strength (MPa) | Flexural Strength (MPa) | |
| Comparative example 1 | 4.7 | 75 | 79 |
| Comparative example 2 | 8.0 | 98 | 88 |
| Comparative example 3 | 8.2 | 138 | 110 |
| Comparative example 4 | 9.1 | 175 | 130 |
| Example 1 | 11.3 | 315 | 145 |
| Example 2 | 10.5 | 308 | 150 |
| Example 3 | 9.8 | 300 | 140 |
For examples 1 to 3 above, compared with comparative examples 1 to 4, the nano SiO was treated by ultrasonic vibration and chemical grafting 2 The surface of the fiber is modified, so that the interlaminar shear performance of the composite material can be obviously improved, and the optimization of the comprehensive mechanical properties of the interface is realized; and the tensile property and the bending property are obviously improved.
Example 1 nano SiO 2 Nano SiO in suspension 2 The best dispersion is achieved with the nano SiO of example 2 2 Nano SiO of suspension 2 A small amount of agglomerates; example 3 nano SiO 2 The suspension liquid shows nano SiO 2 Large area agglomerates. Example 3 use 0.75wt% nano SiO 2 Concentration, nano SiO 2 The dispersion limit was approached in the ethanol solution, and increasing the concentration did not allow better dispersion, but rather resulted in large agglomerates of small particles. The formation of large agglomerates can lead to nano SiO 2 Uneven distribution on the surface of glass fiber and poor dispersion on a single layer, thereby affecting the interface bonding performance of the composite material and leading the effect of the final product to be inferior to that of nano SiO 2 The effect at lower concentrations, but also the performance of the comparative example, is significantly improved.
Claims (29)
1. The glass fiber cloth/polypropylene composite material is characterized by comprising a polypropylene film and glass fiber cloth; the polypropylene film and the glass fiber cloth are alternately overlapped; the number of layers of the polypropylene film is A, the number of layers of the glass fiber cloth is B,
wherein A is more than or equal to 2; b is more than or equal to 1; A-B is more than or equal to 1;
the glass fiber cloth is surface modified glass fiber cloth, and is prepared by dispersing nano SiO in an ultrasonic vibration mode 2 And nano SiO 2 Glass fiber cloth is obtained by modifying the surface of the glass fiber cloth through a chemical grafting method;
the preparation method of the surface modification treatment glass fiber cloth comprises the following steps:
nano SiO 2 Adding solvent to prepare nano SiO 2 A suspension; ultrasonic vibration of the nano SiO 2 A suspension; immersing glass fiber cloth into the nano SiO 2 Soaking in the suspension, and drying; then immersing the treated glass fiber cloth into a coupling agent solution, immersing and drying to obtain the glass fiber cloth;
the nano SiO 2 Nano SiO in suspension 2 The concentration of (C) is 0.05-1 wt%.
2. The fiberglass cloth/polypropylene composite of claim 1, wherein:
20≥A≥2；19≥B≥1；A-B≥1。
3. the fiberglass cloth/polypropylene composite of claim 1, wherein:
the film thickness of the polypropylene film is 0.01-0.50 mm;
the thickness of the glass fiber cloth is 0.05-6.0 mm.
4. A fiberglass cloth/polypropylene composite according to claim 3, wherein:
the film thickness of the polypropylene film is 0.05-0.35 mm.
5. A fiberglass cloth/polypropylene composite according to claim 3, wherein:
the thickness of the glass fiber cloth is 0.2-1.3 mm.
6. A fiberglass cloth/polypropylene composite according to claim 3, wherein:
the thickness of the glass fiber cloth/polypropylene composite material is 0.05-6.0 mm.
7. The fiberglass cloth/polypropylene composite of claim 1, wherein:
the preparation method of the surface modification treatment glass fiber cloth comprises the following steps:
(1) Preparation of nano SiO 2 Suspension: nano SiO 2 Adding the mixture into a solvent, and stirring to obtain nano SiO 2 A suspension;
(2) Preparing a coupling agent solution: adding a coupling agent into a solvent, and uniformly stirring to obtain a coupling agent solution;
(3) The nano SiO obtained by the step (1) 2 Carrying out ultrasonic vibration on the suspension; immersing the glass fiber cloth into nano SiO 2 Taking out the suspension and drying;
(4) Immersing the glass fiber cloth treated in the step (3) into a coupling agent solution, taking out and drying to obtain the surface modified glass fiber cloth.
8. The fiberglass cloth/polypropylene composite of claim 7, wherein:
in the step (1), the stirring speed is 1000-2000 r/min, and the stirring time is 1-2 h.
9. The fiberglass cloth/polypropylene composite of claim 7, wherein:
in the step (2), the concentration of the coupling agent solution is 0.1-1 wt%.
10. The fiberglass cloth/polypropylene composite of claim 9, wherein:
in the step (2), the concentration of the coupling agent solution is 0.25-0.75 wt%.
11. The fiberglass cloth/polypropylene composite of claim 7, wherein:
the nano SiO 2 Nano SiO in suspension 2 The concentration of (C) is 0.1-0.8 wt%.
12. The fiberglass cloth/polypropylene composite of claim 11, wherein:
the saidNano SiO 2 Nano SiO in suspension 2 The concentration of (C) is 0.1-0.5 wt%.
13. The fiberglass cloth/polypropylene composite of claim 12, wherein:
the nano SiO 2 Nano SiO in suspension 2 The concentration of (C) is 0.15-0.3 wt%.
14. The fiberglass cloth/polypropylene composite of claim 7, wherein:
in the step (1) and the step (2),
the solvents are all alcohol solutions;
the volume concentration of the alcohol solution is 20% -95%;
in the step (3), the step of (c),
the power of the ultrasonic oscillation is 40-360 w, and the frequency is 25-100 KHz; for nano SiO 2 The time of the suspension liquid for ultrasonic oscillation is 0.5-1.5 h;
immersing glass fiber cloth into nano SiO 2 The suspension is in the period of 5-30 min;
in the steps (3) and (4),
the drying temperature is 30-120 ℃ and the drying time is 1-6 h;
in the step (4) of the above-mentioned method,
the time for immersing in the coupling agent solution is 10-30 min.
15. The fiberglass cloth/polypropylene composite of claim 14, wherein:
in the step (1) and the step (2),
the solvent is ethanol solution and/or polyethylene glycol solution.
16. The fiberglass cloth/polypropylene composite of claim 14, wherein:
in the step (1) and the step (2),
the volume concentration of the alcohol solution is 50-75%.
17. The fiberglass cloth/polypropylene composite of claim 16, wherein:
in the step (1) and the step (2),
the volume concentration of the alcohol solution is 70% -75%.
18. The fiberglass cloth/polypropylene composite of claim 14, wherein:
in the step (3), the step of (c),
the power of the ultrasonic vibration is 80-120 w, and the frequency is 28-60 KHz.
19. The fiberglass cloth/polypropylene composite of claim 14, wherein:
in the steps (3) and (4),
the drying temperature is 80-100 ℃ and the drying time is 2-3 h.
20. The fiberglass cloth/polypropylene composite of claim 7, wherein:
the coupling agent is a silane coupling agent.
21. The fiberglass cloth/polypropylene composite of claim 20, wherein:
the coupling agent is at least one of gamma-aminopropyl triethoxysilane or gamma-2, 3-glycidoxy-propyl trimethoxysilane.
22. The fiberglass cloth/polypropylene composite of claim 7, wherein:
the glass fiber cloth is pretreated before use; the pretreatment is as follows: calcining the glass fiber cloth; wherein the calcination temperature is 200-400 ℃ and the calcination time is 30-60min.
23. The fiberglass cloth/polypropylene composite of claim 1, wherein:
the polypropylene film material comprises the following components in percentage by weight based on 100% of the total weight of the polypropylene film material:
82-95 wt% of polypropylene and 5-18 wt% of compatilizer.
24. The fiberglass cloth/polypropylene composite of claim 23, wherein:
the polypropylene film material comprises the following components in percentage by weight based on 100% of the total weight of the polypropylene film material:
85-90 wt% of polypropylene and 10-15 wt% of compatilizer.
25. The fiberglass cloth/polypropylene composite of claim 23, wherein:
the melt flow rate of the polypropylene is 1-15 g/10min under the conditions of 230 ℃ and a load of 2.16 kg; the polypropylene is at least one selected from isotactic polypropylene, syndiotactic polypropylene and atactic polypropylene;
and/or the number of the groups of groups,
the compatilizer is maleic anhydride grafted polypropylene, and the density is 0.89-0.96 g/cm 3 The melting point is 130-180 ℃, and the melt flow rate of the maleic anhydride grafted polypropylene is 7-200 g/10min under the conditions of 230 ℃ and a load of 2.16 kg.
26. The fiberglass cloth/polypropylene composite of claim 25, wherein:
the melt flow rate of the polypropylene is 2-10 g/10min under the conditions of 230 ℃ and a load of 2.16 kg.
27. The method for producing a glass fiber cloth/polypropylene composite material according to any one of claims 1 to 26, comprising the steps of:
(1) Preparing a polypropylene film: uniformly mixing the components including the polypropylene and the compatilizer according to the dosage to prepare a polypropylene film;
(2) And (3) placing the surface modified glass fiber cloth and the polypropylene film into a mold, and pressing to obtain the glass fiber cloth/polypropylene composite material.
28. The method of making a fiberglass cloth/polypropylene composite according to claim 27, wherein:
the pressing conditions are as follows: pressing for 5-20min at 160-220 ℃ and 0.5-3 MPa.
29. Use of a glass cloth/polypropylene composite according to any one of claims 1 to 26 or a composite prepared according to the preparation method of claim 27 or 28 in the automotive, electronic, communication, construction fields.
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