KR20160110648A - Composite material and method for preparing the same - Google Patents
Composite material and method for preparing the same Download PDFInfo
- Publication number
- KR20160110648A KR20160110648A KR1020150033139A KR20150033139A KR20160110648A KR 20160110648 A KR20160110648 A KR 20160110648A KR 1020150033139 A KR1020150033139 A KR 1020150033139A KR 20150033139 A KR20150033139 A KR 20150033139A KR 20160110648 A KR20160110648 A KR 20160110648A
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- KR
- South Korea
- Prior art keywords
- composite
- metal wire
- wire mesh
- long fiber
- mesh
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
To a composite material and a manufacturing method thereof.
Recently, recycled plastic products have been used for replacing metal for the purpose of weight saving. In general, plastic products molded using a method such as injection molding using only thermoplastic water are insufficient in strength and rigidity to replace metals.
As a solution to this problem, a high strength plastic product impregnated with a reinforcing material in a thermoplastic resin is used as a substitute for metal.
One embodiment of the present invention provides a composite material excellent in mechanical properties and elongation.
In one embodiment of the invention, there is provided a composite comprising a metal wire mesh and a long fiber reinforced thermoplastic sheet.
The metal wire mesh may be adhered to at least one surface of the long fiber-reinforced thermoplastic sheet, or a part or all of the metal wire mesh may be buried in the long fiber-reinforced thermoplastic sheet.
The metal wire mesh may be a mesh formed of a wire or a cord formed of a metal material.
The wire diameter of the line forming the metal wire mesh may be 0.1 mm to 0.7 mm.
The wire or cord may be formed of a single wire, or may be formed by twisting at least two strands of twisted wire.
The metal wire mesh may be a mesh formed by weaving a wire or cord of a metal material, or by welding in a grid shape.
The metal wire mesh may be a mesh in which both the horizontal line and the vertical line are formed by a single line or a twisted line, or the horizontal line and the vertical line are formed by a single line and a twisted wire, or a combination of twisted wire and single wire.
The metallic material may include at least one selected from the group consisting of carbon steel, stainless steel (SUS), and combinations thereof.
The wire or cord may be coated with a metal, alloy or resin.
The wire or cord may be coated with at least one selected from the group consisting of brass, zinc, and combinations thereof.
The metal wire mesh may be a mesh formed of a tire cord.
The long fiber-reinforced thermoplastic sheet may comprise a matrix material of thermoplastics and a long fiber which is a reinforcing material blended into the matrix.
The long fibers may include at least one selected from the group consisting of glass fibers, carbon fibers, basalt fibers, aramid fibers, natural fibers, and combinations thereof.
The content of the long fibers in the long fiber-reinforced thermoplastic sheet may be 10 to 40% by weight.
The length of the long fibers may be from 5 mm to 50 mm.
The thermoplastic resin may be at least one selected from the group consisting of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyamide (PA), polyacrylonitrile-butadiene- , Polycarbonate (PC) -ABS alloy resin, and combinations thereof.
The thickness of the long fiber-reinforced thermoplastic sheet may be 2 mm to 10 mm.
The weight ratio of the metal wire mesh and the long fiber reinforced thermoplastic sheet may be 1: 4 to 1: 2.
In another embodiment of the present invention, there is provided a method of producing a composite material comprising a metal wire mesh and a long fiber-reinforced thermoplastic sheet by compression-molding a metal wire mesh and a long fiber reinforced thermoplastic sheet together.
The composite material is excellent in mechanical properties and elongation.
Hereinafter, embodiments of the present invention will be described in detail. However, the present invention is not limited thereto, and the present invention is only defined by the scope of the following claims.
In one embodiment of the invention, there is provided a composite comprising a metal wire mesh and a long fiber reinforced thermoplastic sheet.
The composite material has excellent energy absorption capability by including a metal wire mesh, thereby further reinforcing mechanical properties and elongation of the long fiber-reinforced thermoplastic sheet.
The composite material is useful as a material for replacing steel products in the fields of automobiles, aircraft, building materials, and wind power, thereby realizing weight reduction.
In one embodiment, an automotive front back beam made of the composite material is provided.
The composite material may be manufactured by laminating a metal wire mesh on one surface of a long fiber-reinforced thermoplastic sheet and then compression-molding the same. A metal wire mesh can be laminated on one side or both sides of the long fiber-reinforced thermoplastic sheet.
In compression molding with long fiber reinforced thermoplastics, the mesh can be used after washing with alcohol to improve adhesion. During the compression molding, the molding temperature and the pressure range can be suitably applied to the thermoplastic resin to be used.
In another embodiment of the present invention, there is provided a method of producing a composite material comprising a metal wire mesh and a long fiber-reinforced thermoplastic sheet by compression-molding a metal wire mesh and a long fiber reinforced thermoplastic sheet together.
The composite material thus produced may be manufactured such that the metal wire mesh is bonded to at least one surface of the long fiber-reinforced thermoplastic plastic sheet or a part or all of the metal wire mesh is embedded in the long fiber-reinforced thermoplastic plastic sheet . Since the metal wire mesh has a perforated structure, a part of the material from the long fiber-reinforced thermoplastic sheet can be filled with the perforated hole, so that the metal wire mesh can be embedded in the long fiber-reinforced thermoplastic sheet. Depending on the degree to which the metal wire mesh is buried, a part of the metal wire mesh may be buried, or the entire metal wire mesh may be buried.
The metal wire mesh may be a mesh or a mesh formed of a linear material formed of a metal material, and may be variously used as long as it is linear and capable of forming a mesh. For example, ) Or a cord. The metal wire mesh may be a wire formed of a metal material or a mesh formed of a cord.
The cross section of the line is not limited, and may be, for example, circular, elliptical, or a flat cross section.
When the wire forming the metal wire mesh has a circular cross section, the wire diameter may be about 0.1 mm to about 0.7 mm. The composite material including the metal wire mesh formed of metal wire having the above-mentioned range of thickness can appropriately impart both mechanical properties and molding processability.
The wire or cord may be formed of a single wire, or may be formed by twisting at least two strands of twisted wire.
The mesh may be of any known type without limitation, and may be, for example, a mesh formed by weaving a wire or cord of the above-described metallic material, or by welding in a grid shape. The weaving method of the mesh can be variously used, such as, for example, plain weave, twilled weave, and the like, and is not limited.
The size of the mesh is determined by the diameter of the wire or cord. The appropriate size of mesh (number of mesh strands present within 1 inch length) for this purpose can be 8-15. The composite material including the metal wire mesh having the above-mentioned range of size can suitably exert both mechanical properties and molding processability.
The composite can determine the details of the metal wire mesh used in accordance with the desired physical properties implementation.
In one embodiment, the metal wire mesh may be formed of a single wire or a twisted wire both of the horizontal line and the vertical line.
In another embodiment, the metal wire mesh may be formed by a combination of a single wire and a twisted wire or a twisted wire and a single wire, respectively.
The metal material of the metal wire mesh may include at least one selected from the group consisting of carbon steel, stainless steel (SUS, steel use stainless, and combinations thereof).
The wire or cord forming the metal wire mesh may further be coated with a metal, an alloy or a resin. For example, the wire or cord may be coated with at least one selected from the group consisting of brass, zinc, and combinations thereof.
In one embodiment, the metal wire mesh may be, for example, a mesh formed of a tire cord. Tire cords are commonly used as reinforcements in tires, and can be easily obtained commercially from metal products such as carbon steel and steel coated with brass.
The long fiber-reinforced thermoplastic sheet comprises a matrix material of thermoplastics and a long fiber which is a reinforcing material blended into the matrix.
The long fiber-reinforced thermoplastic plastic sheet can be produced by, for example, LFT-D (Long Fiber Thermoplastic-Directing) method. Specifically, a pellet type thermoplastic resin and an additive are mixed in a primary extruder and transferred to a secondary extruder. In the secondary extruder, a reinforcing material is injected and extruded to produce a strand type intermediate material. The intermediate material is molded into a press to produce the long fiber-reinforced thermoplastic resin sheet in a desired structure and shape.
The long fiber-reinforced thermoplastic plastic sheet produced by the LFT-D method has a high mechanical property compared to the weight, but the elongation tends to be low due to the reinforcement added.
Since the composite material includes the metal wire mesh together with the long fiber reinforced thermoplastic sheet, the elongation can be improved.
Wherein the long fibers include at least one selected from the group consisting of glass fibers, carbon fibers, bar-cut fibers, aramid fibers, natural fibers, and combinations thereof
The content of the long fibers in the long fiber-reinforced thermoplastic sheet may be about 10 to about 40% by weight. Since the composite material includes the thermoplastic plastic sheet containing the long fiber content in the above range, the mechanical properties and elongation can be both excellent.
The length of the long fibers may be from about 5 mm to about 50 mm. Since the composite material includes the thermoplastic plastic sheet containing the long fibers of the above-mentioned size, both the mechanical properties and elongation can be excellently realized.
The thermoplastic resin may be, for example, polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyamide (PA), polyacrylonitrile-butadiene- (ABS), polycarbonate (PC) -ABS alloy resin, and combinations thereof.
The thickness of the long fiber-reinforced thermoplastic sheet can be about 2 mm to about 10 mm. The composite material includes a long fiber-reinforced thermoplastic resin sheet having a thickness in the above-described range, thereby realizing excellent mechanical properties and elongation, excellent energy absorption capability, and excellent molding processability.
The composite material may have a weight ratio of the metal wire mesh to the long fiber-reinforced thermoplastic sheet of about 1: 4 to about 1: 2. The composite material including the metal wire mesh and the long fiber reinforced thermoplastic plastic sheet at the weight ratio within the above range is excellent in both mechanical properties and elongation, has excellent energy absorbing ability, and is excellent in molding processability.
Hereinafter, examples and comparative examples of the present invention will be described. The following embodiments are only examples of the present invention, and the present invention is not limited to the following embodiments.
( Example )
Manufacturing example One
A metal wire mesh woven in a plain weave was manufactured by using both the longitudinal and transverse lines of a tire cord (trade name: wire mesh, manufactured by Tire Cord (Hyosung), mesh (Korea Metal) manufactured by a twisted wire of carbon steel having a diameter of 0.1 mm . The mesh size (number of mesh strands present within 1 inch length) was 10.
Manufacturing example 2
A tire cord (trade name: steel cord manufactured by twisting a twisted wire made of carbon steel) having a diameter of 0.5 mm, a tire cord (trade name: SUS single wire, manufactured by Korea Metal Co., Ltd.) Hyosung) were fabricated by using different width and width, respectively. The mesh size (number of mesh strands present within 1 inch length) was 10.
Example One
Fiber reinforced thermoplastic plastic sheet was made to have a thickness of 3 mm by the LFT-D method so that the weight ratio of polypropylene and glass fiber was 4: 1. The metal wire mesh prepared in Preparation Example 1 was pasted on one side of the prepared long fiber-reinforced thermoplastic sheet, followed by compression molding to prepare a composite material having a total thickness of 3.2 mm.
The manufacturing process of the composite material made of the thermoplastic plastic sheet is as follows. The temperature of the mold is increased to 80 ° C by using a meticulous oven. The wire mesh is cut to fit the mold size, put into a mold, and thermoplastic plastics extruded through the LFT-D method are placed on the mesh. 100 ton pressure is applied for 1 minute.
Example 2
A composite material was prepared in the same manner as in Example 1, except that the metal wire mesh prepared in Production Example 2 was used.
Comparative Example One
The same procedure as in Example 1 was carried out to prepare a long fiber-reinforced thermoplastic plastic sheet having a thickness of 3.2 mm.
Comparative Example 2
A composite material was prepared in the same manner as in Example 1, except that a polypropylene sheet of the same thickness was used in place of the long fiber-reinforced thermoplastic resin sheet used in Example 1.
evaluation
Experimental Example One
Flexural stiffness, flexural strength, elongation at break and absorbed energy of the composites prepared in Examples 1-2 and 1-2 were measured by a universal testing machine (manufactured by Instron) and are shown in Table 1 below.
From the results shown in Table 1, the reinforcing material of Example 1-2 exhibited excellent mechanical properties, elongation and energy absorption ability as compared with Comparative Example 1. [ In Comparative Example 2, the shape was made in a twisted state at all, and the physical property measurement itself was impossible.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, And falls within the scope of the invention.
Claims (19)
Wherein the metal wire mesh is adhered to at least one surface of the long fiber-reinforced thermoplastic sheet, or a part or all of the metal wire mesh is embedded in the long fiber-reinforced thermoplastic sheet
Composite.
The metal wire mesh may be a wire made of a metal material or a mesh formed of a cord.
Continuous Fiber Reinforced Resin Composite.
The line diameter of the line forming the metal wire mesh is preferably 0.1 mm to 0.7 mm
Continuous Fiber Reinforced Resin Composite.
The wire or cord may be formed of a single wire or may be formed by twisting at least two twisted strands
Composite.
The metal wire mesh is a mesh wire formed by weaving a wire or a cord of a metal material or by welding in a grid shape
Composite.
The metal wire mesh may be formed by forming a horizontal line and a vertical line in a single line or a twisted line or a horizontal line and a vertical line respectively in a single line and a twisted wire,
Composite.
Wherein the metallic material comprises at least one selected from the group consisting of carbon steel, stainless steel (SUS), and combinations thereof
Composite.
The wire or cord may be coated with a metal, alloy or resin
Composite.
The wire or cord may be coated with at least one selected from the group consisting of brass, zinc, and combinations thereof.
Composite.
The metal wire mesh is a mesh wire formed of a tire cord
Composite.
Wherein said long fiber-reinforced thermoplastic sheet comprises a matrix material of thermoplastics and a long fiber which is a reinforcing material blended into said matrix
Composite.
Wherein the long fibers include at least one selected from the group consisting of glass fibers, carbon fibers, bar-cut fibers, aramid fibers, natural fibers, and combinations thereof
Composite.
Wherein the content of the long fibers in the long fiber-reinforced thermoplastic plastic sheet is 10 to 40 wt%
The length of the long fibers is from 5 mm to 50 mm
Composite.
The thermoplastic resin may be at least one selected from the group consisting of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyamide (PA), polyacrylonitrile-butadiene- , Polycarbonate (PC) -ABS alloy resin, and combinations thereof.
Composite.
The thickness of the long fiber-reinforced thermoplastic sheet is preferably from 2 mm to 10 mm
Composite.
Wherein the weight ratio of the metal wire mesh and the long fiber reinforced thermoplastic sheet is from 1: 4 to 1: 2
Composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150033139A KR102019444B1 (en) | 2015-03-10 | 2015-03-10 | Composite material and method for preparing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150033139A KR102019444B1 (en) | 2015-03-10 | 2015-03-10 | Composite material and method for preparing the same |
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| Publication Number | Publication Date |
|---|---|
| KR20160110648A true KR20160110648A (en) | 2016-09-22 |
| KR102019444B1 KR102019444B1 (en) | 2019-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020150033139A KR102019444B1 (en) | 2015-03-10 | 2015-03-10 | Composite material and method for preparing the same |
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| KR (1) | KR102019444B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180062676A (en) * | 2016-12-01 | 2018-06-11 | 박정길 | Loess Wall Interior Material using Recycled Mesh and Manufacturing Method Thereof |
| KR20230082285A (en) | 2021-12-01 | 2023-06-08 | 경상국립대학교산학협력단 | Microwave absorbing form based sandwich composite with metallic lightning protection layer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001226A (en) * | 2005-06-27 | 2007-01-11 | Toray Ind Inc | Forming method of composite member of metal sheet and fiber-reinforced plastic, and composite substrate of metal sheet and fiber-reinforced plastics base material used for the forming |
| KR20150018729A (en) * | 2013-08-09 | 2015-02-24 | (주)엘지하우시스 | Bumper back-beam for vehicle |
-
2015
- 2015-03-10 KR KR1020150033139A patent/KR102019444B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001226A (en) * | 2005-06-27 | 2007-01-11 | Toray Ind Inc | Forming method of composite member of metal sheet and fiber-reinforced plastic, and composite substrate of metal sheet and fiber-reinforced plastics base material used for the forming |
| KR20150018729A (en) * | 2013-08-09 | 2015-02-24 | (주)엘지하우시스 | Bumper back-beam for vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180062676A (en) * | 2016-12-01 | 2018-06-11 | 박정길 | Loess Wall Interior Material using Recycled Mesh and Manufacturing Method Thereof |
| KR20230082285A (en) | 2021-12-01 | 2023-06-08 | 경상국립대학교산학협력단 | Microwave absorbing form based sandwich composite with metallic lightning protection layer |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102019444B1 (en) | 2019-09-09 |
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