CN116872528A - Multilayer spraying-free composite material and manufacturing method thereof - Google Patents
Multilayer spraying-free composite material and manufacturing method thereof Download PDFInfo
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- CN116872528A CN116872528A CN202310800141.0A CN202310800141A CN116872528A CN 116872528 A CN116872528 A CN 116872528A CN 202310800141 A CN202310800141 A CN 202310800141A CN 116872528 A CN116872528 A CN 116872528A
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- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 79
- 239000011347 resin Substances 0.000 claims abstract description 79
- 239000002344 surface layer Substances 0.000 claims abstract description 53
- 239000012792 core layer Substances 0.000 claims abstract description 45
- 239000010410 layer Substances 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 25
- 238000007598 dipping method Methods 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000000326 ultraviolet stabilizing agent Substances 0.000 claims description 13
- 239000003365 glass fiber Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229920005992 thermoplastic resin Polymers 0.000 claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims description 5
- 229920002748 Basalt fiber Polymers 0.000 claims description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000004760 aramid Substances 0.000 claims description 4
- 229920003235 aromatic polyamide Polymers 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920000193 polymethacrylate Polymers 0.000 claims description 4
- 229910052895 riebeckite Inorganic materials 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 229920005792 styrene-acrylic resin Polymers 0.000 claims description 4
- -1 whiskers Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 2
- 239000012965 benzophenone Substances 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 239000001038 titanium pigment Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000001723 curing Methods 0.000 description 5
- 239000003733 fiber-reinforced composite Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- IYAZLDLPUNDVAG-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 IYAZLDLPUNDVAG-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 206010051246 Photodermatosis Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008845 photoaging Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/521—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement before the die
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
- B29C70/528—Heating or cooling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The application relates to a multilayer spraying-free composite material and a manufacturing method thereof. Because of the viscosity difference of the core layer resin and the surface layer resin, the co-extrusion does not affect the resin components in each layer, and more beneficial, the interface between the core layer and the surface layer becomes more fuzzy, the interface strength is higher, and the combination is better. The preparation method of the multilayer spraying-free composite material has the advantages of low production process cost and good economy, and the prepared spraying-free composite material has reliable weather resistance and better market application prospect.
Description
Technical Field
The application belongs to the field of high polymer materials, and particularly relates to a multilayer spraying-free composite material and a manufacturing method thereof.
Background
The application field of the resin-based fiber reinforced composite material prepared by the pultrusion process is that under the irradiation of outdoor sunlight, the photo-aging resistance of the surface material determines the practical service life of the composite material. In order to improve the weather resistance of the material, the prior art mainly adopts the following means: 1. the ultraviolet absorber or the light aging resistant agent is added in the whole structure, which is helpful to improve the light resistance to a certain extent, but the cost is obviously improved if the addition amount is large, and the aging resistant effect is poor if the addition amount is low; 2. the weather-resistant paint is coated on the surface of the product, so that the weather resistance is reliable, but the processing procedures and the processing cost are increased; damage such as scratch of the coating when the coating is used with the thickness of about 30 mu m can affect the light aging resistance; 3. the weather-resistant layer is prepared on the surface layer of the product, and the 2 steps of preforming, dipping and curing are carried out by winding or felt wrapping or co-extruding double-layer glass fiber, 2 or more dipping box devices are needed in the whole process, the pultrusion speed is limited by dipping and curing speeds, and the overall economy is poor.
Disclosure of Invention
The application aims to solve the technical problems of complex production process and high improvement process cost of the traditional spraying-free composite material.
The application provides a multilayer spraying-free composite material, which is prepared by respectively dipping surface layer resin and core layer resin by adopting a layered dipping box to obtain dipped core layer fibers and surface layer fibers, and then putting the dipped core layer fibers and the dipped surface layer fibers into a forming die together for curing; wherein, the liquid crystal display device comprises a liquid crystal display device,
A. the viscosity m1 of the core resin is 50-200000 mPa.s;
B. the viscosity m2 of the surface resin is 50-200000 mPa.s;
C. the inner layer of the layered gum dipping box is a core layer, and the outer layer is a surface layer;
the viscosity difference of the m1 and m2 resins is 100-100000 mPa.s.
The core layer resin is at least one of polyurethane, unsaturated resin, epoxy resin, polyamide, polymethacrylate, polycarbonate and acrylonitrile-styrene-acrylic resin; the core resin is free of release agent.
The surface layer resin is at least one of polyurethane, unsaturated resin, epoxy resin, polyamide, polymethacrylate, polycarbonate and acrylonitrile-styrene-acrylic resin; and the surface layer resin is added with a release agent and an ultraviolet stabilizer.
The release agent is one or more of organosilicon release agents, resin wax series release agents or fluorine-containing release agents, and the mass fraction of the release agent in the surface layer resin is 0.5-5%.
The ultraviolet stabilizer is benzophenone, benzotriazole, triazine and other ultraviolet stabilizers, or zinc oxide, titanium dioxide and the like, and the mass fraction of the ultraviolet stabilizer in the surface resin is 0.5-10%.
The core fiber is one or more selected from the group consisting of: glass fibers, carbon fibers, polyester fibers, natural fibers, aromatic polyamide fibers, nylon fibers, basalt fibers, boron fibers, silicon carbide fibers, asbestos fibers, whiskers, and metal fibers.
The skin fibers are one or more selected from the group consisting of: glass fibers, carbon fibers, polyester fibers, natural fibers, aromatic polyamide fibers, nylon fibers, basalt fibers, boron fibers, silicon carbide fibers, asbestos fibers, whiskers, and metal fibers; or a fibrous cloth or felt as described above.
The application also provides a manufacturing method of the multilayer spraying-free composite material, which comprises the following steps:
i) Arranging yarns, wherein core layer fibers and surface layer fibers are arranged according to requirements;
ii) dipping, namely, the core layer fiber and the surface layer fiber enter a layered dipping box to be respectively dipped by core layer resin and surface layer resin, wherein the core layer resin and the surface layer resin are not heated if the core layer resin and the surface layer resin are thermosetting resin, and the dipping box is heated to a resin melting state if the core layer resin and the surface layer resin are thermoplastic resin;
iii) Molding, wherein the dipped material enters a mold; the core layer resin and the surface layer resin are formed by heating and curing if the core layer resin and the surface layer resin are thermosetting resins; the core layer resin and the surface layer resin are formed by cooling, solidifying and molding if the core layer resin and the surface layer resin are thermoplastic resins;
iv) pulling, pulling forward the material;
v) cutting, cutting according to the requirement, stacking and packaging.
The thermosetting resin is heated, cured and formed at 120-300 ℃ for 5-120min.
The thermoplastic resin is cooled, solidified and formed for 0.1-10min at a temperature of 50-150 deg.f.
The traction speed is 0.5m/min-50m/min.
Advantageous effects
The viscosity difference of the core layer resin and the surface layer resin is large, the co-extrusion does not influence the resin components in each layer, and more beneficial is that the interface between the core layer and the surface layer becomes more fuzzy, the interface strength is higher, and the combination is better; the thickness of the surface layer material is adjustable, the texture and the color can be customized, and the design is very high; the core layer material does not need to be added with a release agent and an ultraviolet stabilizer, so that poor interface between the core layer and the surface layer is avoided, and the material cost can be reduced; the surface layer material is added with a release agent and a high-content ultraviolet stabilizer, so that the weather-proof effect can be further ensured, and the service life of the product is further prolonged. The preparation method of the multilayer spraying-free composite material has low production process cost and good economy. The prepared spraying-free composite material has reliable weather resistance and better market application prospect.
Drawings
FIG. 1 is a flow chart of a gum dipping process of the present application; wherein 1 is surface layer fiber; 2 is core layer fiber; 3 is a layered gum dipping box; 4 is a surface layer gum dipping area; 5 is a core layer gum dipping area; 6 is a forming die; 7 is a heating/cooling module; 8 is a multilayer spraying-free composite material
Detailed Description
The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
Example 1
The release agent used in this example was WanhuaKC312。
The ultraviolet stabilizer used in this example was BASF TINUVIN PUR 866.
The present embodiment provides a multilayer spray-free composite, wherein:
polyurethane impregnated continuous fiber reinforced composite material is used as core layer material, and the viscosity of the polyurethane is 1000 mPa.s #242, vanity); the glass fiber felt is impregnated with low-viscosity polyurethane resin as a surface layer material, the viscosity is 200 mPa.s (WANNATE HT, wanhua), 2wt% of ultraviolet stabilizer is loaded, and 3wt% of release agent is loaded.
The preparation method of the multilayer spraying-free composite material comprises the following steps:
(1) Arranging yarns, wherein core layer fibers (continuous fiber reinforced composite materials) and surface layer fibers (glass fiber mats) are arranged according to requirements;
(2) Dipping, namely, the core layer fiber and the surface layer fiber enter a layered dipping box to be respectively dipped through the polyurethane and the aqueous polyurethane resin;
(3) Molding, namely placing the dipped material into a mold, heating, curing and molding at the temperature of 150 ℃ for 10min;
(4) Traction, forward traction material at a speed of 1 m/min;
(5) Cutting according to the requirements, stacking and packaging to obtain the multilayer spraying-free composite material.
The thickness of the surface layer material of the composite material is 0.5mm, the tensile strength of the composite material is 1000MPa, the tensile modulus is 42GPa, and the change rate of the yellowness index of a xenon lamp irradiated for 2000h is 1.0.
Example 2
The release agent used in this example was PPAFX 5924.
The ultraviolet stabilizer used in this example was CYASORB UV-5411.
The present embodiment provides a method for multilayer spray-free composite material, wherein:
impregnating a continuous fiber reinforced composite material with thermoplastic polyamide resin to obtain a core layer material with the viscosity of 100000 mPa.s (103 HSL, duPont); the glass fiber felt impregnated with thermoplastic polyacrylic resin is used as a surface layer material, the resin viscosity of the glass fiber felt is 80000 mPa.s (MF 001, mitsubishi), 3wt% of ultraviolet stabilizer is loaded, and 3wt% of release agent is loaded.
The preparation method of the multilayer spraying-free composite material comprises the following steps:
(1) Arranging yarns, wherein core layer fibers (continuous fiber reinforced composite materials) and surface layer fibers (glass fiber mats) are arranged according to requirements;
(2) Dipping, namely, enabling the core layer fibers and the surface layer fibers to enter a layered dipping box to be respectively dipped through core layer resin and surface layer resin, and heating the dipping box to a resin melting state, wherein the temperature is 250 ℃;
(3) Molding, namely putting the dipped material into a mold, cooling, solidifying and molding at the temperature of 150 ℃ for 2min;
(4) Traction, forward traction material at a speed of 5 m/min;
(5) Cutting according to the requirements, stacking and packaging to obtain the multilayer spraying-free composite material.
The thickness of the surface layer material of the composite material is 1.0mm, the tensile strength of the composite material is 700MPa, the tensile modulus is 20GPa, and the change rate of the yellowness index of a xenon lamp irradiated for 2000h is 1.8.
Claims (8)
1. A multilayer spray-free composite, characterized by: the composite material is prepared by respectively dipping the surface layer resin and the core layer resin by adopting a layered dipping box to obtain dipped core layer fibers and surface layer fibers, and then putting the core layer fibers and the surface layer fibers into a forming die together for curing; wherein, the liquid crystal display device comprises a liquid crystal display device,
A. the viscosity m1 of the core resin is 50-200000 mPa.s;
B. the viscosity m2 of the surface resin is 50-200000 mPa.s;
C. the inner layer of the layered gum dipping box is a core layer, and the outer layer is a surface layer;
the viscosity difference of the m1 and m2 resins is 100-100000 mPa.s.
2. The multilayer spray-free composite of claim 1, wherein: the core layer resin is at least one of polyurethane, unsaturated resin, epoxy resin, polyamide, polymethacrylate, polycarbonate and acrylonitrile-styrene-acrylic resin; the core resin is free of release agent.
3. The multilayer spray-free composite of claim 1, wherein: the surface layer resin is at least one of polyurethane, unsaturated resin, epoxy resin, polyamide, polymethacrylate, polycarbonate and acrylonitrile-styrene-acrylic resin; and the surface layer resin is added with a release agent and an ultraviolet stabilizer.
4. A multilayer spray-free composite according to claim 3, characterized in that: the release agent is one or more of organosilicon release agents, resin wax series release agents or fluorine-containing release agents, and the mass fraction of the release agent in the surface layer resin is 0.5-5%.
5. A multilayer spray-free composite according to claim 3, characterized in that: the ultraviolet stabilizer is one or more of benzophenone, benzotriazole, triazine, zinc oxide and titanium pigment, and the mass fraction of the ultraviolet stabilizer in the surface resin is 0.5-10%.
6. The multilayer spray-free composite of claim 1, wherein: the core fiber is one or more selected from the group consisting of: glass fibers, carbon fibers, polyester fibers, natural fibers, aromatic polyamide fibers, nylon fibers, basalt fibers, boron fibers, silicon carbide fibers, asbestos fibers, whiskers, and metal fibers.
7. The multilayer spray-free composite of claim 1, wherein: the skin fibers are one or more selected from the group consisting of: glass fibers, carbon fibers, polyester fibers, natural fibers, aromatic polyamide fibers, nylon fibers, basalt fibers, boron fibers, silicon carbide fibers, asbestos fibers, whiskers, and metal fibers; or a fibrous cloth or felt as described above.
8. A method of making a multilayer spray-free composite comprising:
i) Arranging yarns, wherein core layer fibers and surface layer fibers are arranged according to requirements;
ii) dipping, namely, the core layer fiber and the surface layer fiber enter a layered dipping box to be respectively dipped by core layer resin and surface layer resin, wherein the core layer resin and the surface layer resin are not heated if the core layer resin and the surface layer resin are thermosetting resin, and the dipping box is heated to a resin melting state if the core layer resin and the surface layer resin are thermoplastic resin;
iii) Molding, wherein the dipped material enters a mold; the core layer resin and the surface layer resin are formed by heating and curing if the core layer resin and the surface layer resin are thermosetting resins; the core layer resin and the surface layer resin are formed by cooling, solidifying and molding if the core layer resin and the surface layer resin are thermoplastic resins;
iv) pulling, pulling forward the material;
v) cutting, cutting according to the requirement, stacking and packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310800141.0A CN116872528A (en) | 2023-07-03 | 2023-07-03 | Multilayer spraying-free composite material and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310800141.0A CN116872528A (en) | 2023-07-03 | 2023-07-03 | Multilayer spraying-free composite material and manufacturing method thereof |
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| CN116872528A true CN116872528A (en) | 2023-10-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090023870A1 (en) * | 2006-02-07 | 2009-01-22 | Resin Systems, Inc | Method of Pultrusion Employing Multiple Resins |
| CN104228087A (en) * | 2014-09-01 | 2014-12-24 | 机械科学研究总院先进制造技术研究中心 | Method for preparing composite material prepreg |
| CN104672782A (en) * | 2014-12-31 | 2015-06-03 | 国家电网公司 | Fiber-reinforced resin-based composite material core and preparation method thereof |
| CN109016565A (en) * | 2017-06-12 | 2018-12-18 | 科思创德国股份有限公司 | It is used to prepare the pultrusion method and equipment of fibre reinforced composites |
| CN111216381A (en) * | 2020-01-19 | 2020-06-02 | 南京聚发新材料有限公司 | Fiber reinforced double-layer resin composite material, and extrusion molding device and process thereof |
-
2023
- 2023-07-03 CN CN202310800141.0A patent/CN116872528A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090023870A1 (en) * | 2006-02-07 | 2009-01-22 | Resin Systems, Inc | Method of Pultrusion Employing Multiple Resins |
| CN104228087A (en) * | 2014-09-01 | 2014-12-24 | 机械科学研究总院先进制造技术研究中心 | Method for preparing composite material prepreg |
| CN104672782A (en) * | 2014-12-31 | 2015-06-03 | 国家电网公司 | Fiber-reinforced resin-based composite material core and preparation method thereof |
| CN109016565A (en) * | 2017-06-12 | 2018-12-18 | 科思创德国股份有限公司 | It is used to prepare the pultrusion method and equipment of fibre reinforced composites |
| CN111216381A (en) * | 2020-01-19 | 2020-06-02 | 南京聚发新材料有限公司 | Fiber reinforced double-layer resin composite material, and extrusion molding device and process thereof |
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