KR20110017086A - A light-weight plastic resin composition adding metal pigment - Google Patents
A light-weight plastic resin composition adding metal pigment Download PDFInfo
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- KR20110017086A KR20110017086A KR1020090074584A KR20090074584A KR20110017086A KR 20110017086 A KR20110017086 A KR 20110017086A KR 1020090074584 A KR1020090074584 A KR 1020090074584A KR 20090074584 A KR20090074584 A KR 20090074584A KR 20110017086 A KR20110017086 A KR 20110017086A
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- synthetic resin
- resin composition
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- metal pigment
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a synthetic resin composition having a metallic texture, characterized in that it comprises a glass bubble (glass bubble) which is a hollow microsphere. Synthetic resin composition of the present invention can remove the weld line (weld line), implement weight reduction and excellent scratch resistance.
Description
The present invention relates to a synthetic resin, and more particularly to a synthetic resin composition in which the metallic texture is expressed.
Various methods have been used for imparting high quality such as metal or wood texture to existing synthetic resin compositions. More specifically, in order to express the desired texture in the synthetic resin composition, the method of impregnating the composition and then applying a film, the pressure transfer, inserting the film into the mold and then insert injection bonding, chromium or nickel plating the composition using And coating work using paints in which metal pigments and volatile organic solvents are mixed have been widely used.
However, such a conventional method causes environmental problems such as harmful gases, odors, recyclability, and the like, which are becoming a problem recently. In addition, the injected synthetic resin composition is required to undergo a test step, a washing step, a primer application step, a plating step, a painting step, a drying step, and the like, so that the process is complicated. In addition, the equipment used in the process is expensive, causing a rise in product cost. In addition, a chronic defect such as peeling of the coating film after the operation or the composition distortion during the drying operation occurs.
In order to solve these various problems, a method of adding metal powder and flakes as a pigment has been used at home and abroad. For example, Korean Patent Laid-Open Publication No. 10-2004-0048550 describes a resin molded article expressing metallic texture by adding metallic powder (silver powder or gold powder) in a predetermined ratio to a polyvinyl chloride resin to manufacture a wire protective cover having a metallic color. It is. In addition, Korean Patent Laid-Open Publication No. 10-2004-0082930 describes a composition and a product thereof that express a metal texture by adding a metallic pigment and an ultrafine short fiber together to a synthetic resin composition. U.S. Patent No. 6,143,815 also describes a resin molding formed by mixing a scale brightener of less than 10 to 20 µm in a thermoplastic resin. In addition, US Patent No. 5,530,051 has a patent application for the manufacture of a polyester-based resin molded article comprising a metal microplate by cutting a metal plate.
However, in the conventional metal pigment-added composition, the metal pigment added during the injection molding process is not arranged in a certain direction, but is vertically arranged at a portion where the molten resin is bonded while flowing, so that a weld line is generated. Problem appears. The weld line is free of the movement of the metal pigment particles in the resin at the melting point of the polymer resin, the specific orientation of the particles disappears, and the metal particles having a plate-like form mainly in the bonding portion of the resin in the injection mold is arranged vertically It is known that the dark part of the side surface of the particle appears on the surface of the composition, and unlike other parts, the dark color appears. This phenomenon can also be interpreted as aggregation between the flowable metal particles in the bonding portion of the molten resin.
This weld line is one of the typical molding problems of polymer injection resin by significantly reducing the commercial value of the composition, and mixed with various types of additives such as microfiber glass fiber to solve this problem. Or a significant increase in price.
It is an object of the present invention to provide a synthetic resin composition in which the metallic texture is expressed, which is environmentally friendly, lightweight, and excellent in scratch resistance.
An object of the present invention to provide a synthetic resin composition with improved weld line phenomenon.
The present invention to achieve the above object is a synthetic resin; Metal pigments; And hollow microspheres, specific gravity of 0.1 to 1.0 g / cc, compressive strength of 200 to 20,000 psi, and size of 15 to 150 μm to provide a synthetic resin composition comprising a glass bubble. .
The synthetic resin composition of the present invention blocks harmful substances such as human harmful gases and odors, and is recyclable and environmentally friendly. In addition, the synthetic resin composition of the present invention shows a great effect on cost reduction by reducing the process and investment costs. In addition, the synthetic resin composition of the present invention, the painted synthetic resin composition does not cause defects such as paint peeling or composition distortion after painting. Furthermore, it is possible to improve a phenomenon in which the weld line, which was the biggest disadvantage of the conventional metal-based resin, occurs. In addition, the synthetic resin composition of the present invention can implement a lightweight and excellent scratch resistance. In addition, the synthetic resin composition of the present invention is excellent in workability.
EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.
Synthetic resin composition of the present invention comprises a synthetic resin, metal pigments and glass bubbles.
Synthetic resin included in the synthetic resin composition of the present invention is not particularly limited as long as it is a synthetic resin used in the art, polypropylene resin, polyethylene resin, acrylonitrile butadiene styrene resin, acetal resin, nylon resin, styrene resin, polycarbonate resin, It is preferable to use 1 type, or 2 or more types chosen from the group which consists of an epoxy resin, a melamine resin, and a polyurethane resin. Among them, one or two or more selected from the group consisting of polypropylene resin, polyethylene resin, acrylonitrile butadiene styrene resin, acetal resin, nylon resin, styrene resin, polycarbonate resin and epoxy resin which are thermoplastic resins are used. More preferred.
Metal pigments included in the synthetic resin composition of the present invention to express the metal texture in the synthetic resin composition of the present invention to implement a sense of quality.
The metal pigment is preferably included in 0.1 to 50 parts by weight based on 100 parts by weight of the synthetic resin. If it is included in less than the above-described range, it is difficult to express the metal texture. In addition, when included in excess of the above-described range, manufacturing costs are greatly increased, workability is lowered and mechanical strength is also greatly reduced.
The metal pigment is preferably in the form of powder and flake, and preferably at least one selected from the group consisting of aluminum, copper, nickel, gold, silver, titanium, tin, zinc and alloys thereof. The particle size of the metal pigment is preferably 1 to 100㎛. If it is less than the above-mentioned range, the workability is inferior, the sparkle peculiar to the metal pigment disappears and the weld line is increased. It is difficult to express the metallic texture which is the original purpose of the above-mentioned range, and a sense of quality disappears.
Glass bubbles contained in the synthetic resin composition of the present invention can suppress the generation of weld lines when the product is manufactured with the synthetic resin composition of the present invention. The glass bubble is preferably insoluble and chemically stable. The color of the glass bubble is preferably white or colorless to the naked eye in order to diversify the production and use of the product.
The glass bubble is hollow microspheres, specific gravity is 0.1 to 1.0g / cc, compressive strength is 200 to 20,000psi, size is 15 to 150㎛. If the above conditions are satisfied, the synthetic resin composition of the present invention can realize the weight reduction of the product. In addition, during injection, which is a process used when manufacturing a product with the synthetic resin composition of the present invention, it can withstand the pressure of the injection machine, it is possible to remove the weld line by preventing the vertical arrangement of the metal pigment.
The glass bubble is preferably contained in 0.1 to 50 parts by weight based on 100 parts by weight of the synthetic resin. If it is included in less than the above-described range, it is not possible to suppress the weld line generation of the product made of the synthetic resin composition of the present invention. When included in excess of the above-mentioned range, manufacturing costs are greatly increased, workability is lowered, and mechanical strength is also greatly reduced.
The glass bubble is preferably one selected from the group consisting of soda-lime glass, borosilicate glass, and mixtures thereof.
As a product using the synthetic resin composition of the present invention, the interior and exterior materials of the automobile that can replace the metal coating, the case of home appliances, etc. are preferable, and can be used in homes and household goods.
The synthetic resin composition of the present invention blocks harmful substances such as human harmful gases and odors, and is recyclable and environmentally friendly. In addition, the synthetic resin composition of the present invention shows a great effect on cost reduction by reducing the process and investment costs. In addition, the synthetic resin composition of the present invention, the painted synthetic resin composition does not cause defects such as paint peeling or composition distortion after painting. Furthermore, it is possible to improve a phenomenon in which the weld line, which was the biggest disadvantage of the conventional metal-based resin, occurs. In addition, the synthetic resin composition of the present invention can implement a lightweight and excellent scratch resistance. In addition, the synthetic resin composition of the present invention is excellent in workability.
The invention is described in more detail in the following examples, but the scope of the invention is not limited thereto.
Example 1 and Comparative Example 1: Preparation of Synthetic Resin Composition
A pellet-like synthetic resin composition was prepared by mixing and compounding the ingredients and compositions shown in Table 1.
A-1: composite polypropylene resin (T m : 135 ° C, density: 0.95 g / cm 3, manufacturer: Hyundai EP, trade name: HT121)
B-1: aluminum flake (see Fig. 1, manufacturer: Dongyang Aluminum, trade name: U type, particle size: 10 to 50㎛)
C-1: S60HS (trade name, manufacturer: 3M, see FIG. 2)
Preparation Example 1 and Comparative Preparation Example 1: Preparation of automobile parts using a synthetic resin composition
The compositions of Example 1 and Comparative Example 1 were each put into an injection molding machine and subjected to test injection using an automobile part mold to prepare an automobile part (JM-Tucson PACKAGE TRAY SPEAKER GRILL).
Test Example: Characterization of Automotive Parts
The weld lines of automobile parts manufactured by Preparation Example 1 and Comparative Preparation Example 2 are shown in FIGS. 3 and 4, respectively, and the results of comparing the weight, specific gravity, and scratches are shown in Table 2.
Here, the weight was measured using EK4000H (brand name, manufacturer: AND), specific gravity was measured using MD300S (brand name, manufacturer: ALFA MIRAGE), scratches based on Hyundai Motor MS-SPEC 210-05 HEIDON TYPE14 It measured using FW (brand name, manufacturer: SHINTO SCIENTIFIC CO. LTD).
Class 2.5: Surface damage is recognized.
Level 3: A slight surface damage is noticeable but inconspicuous.
3 and 4, it can be seen that the weld line is improved by adding glass bubbles.
Referring to Table 2, the automotive parts of Preparation Example 1 prepared from the composition with glass bubbles added had a weight loss of about 10% compared to the automobile parts of Comparative Preparation Example 2 without the glass bubbles, and the specific gravity was low. It was found that scratchability is also excellent.
1 is a photograph showing the aluminum flakes used in Example 1 and Comparative Example 1.
2 is a photograph showing a glass bubble used in Example 1.
Figure 3 is a photograph showing the weld line of the automotive component manufactured by Preparation Example 1.
Figure 4 is a photograph showing the weld line of the automotive component manufactured by Comparative Preparation Example 1.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090074584A KR20110017086A (en) | 2009-08-13 | 2009-08-13 | A light-weight plastic resin composition adding metal pigment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090074584A KR20110017086A (en) | 2009-08-13 | 2009-08-13 | A light-weight plastic resin composition adding metal pigment |
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| KR20110017086A true KR20110017086A (en) | 2011-02-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013154291A1 (en) * | 2012-04-09 | 2013-10-17 | Samsung Electronics Co., Ltd. | Glass bubble, master batch including the same, and resin particle with metal film formed on surface thereof |
| KR101349745B1 (en) * | 2012-07-27 | 2014-01-13 | 한국기계연구원 | Preparation method of aluminium film-coated hollow sphere filler and plastic resin comprising the same and molded product prepared therefrom |
| KR20150067026A (en) * | 2013-12-06 | 2015-06-17 | 주식회사 삼양사 | Pearlescent thermoplastic resin composition and molded article thereof |
| WO2016009048A1 (en) * | 2014-07-17 | 2016-01-21 | Styrolution Group Gmbh | Thermoplastic moulding compound containing microspheres having solid material particles |
| KR20220105926A (en) * | 2021-01-21 | 2022-07-28 | 엘지전자 주식회사 | Chemical strengthening method of hollow glass body and hollow glass body thereof, and high strength lightweight plastic including the same |
-
2009
- 2009-08-13 KR KR1020090074584A patent/KR20110017086A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013154291A1 (en) * | 2012-04-09 | 2013-10-17 | Samsung Electronics Co., Ltd. | Glass bubble, master batch including the same, and resin particle with metal film formed on surface thereof |
| KR101349745B1 (en) * | 2012-07-27 | 2014-01-13 | 한국기계연구원 | Preparation method of aluminium film-coated hollow sphere filler and plastic resin comprising the same and molded product prepared therefrom |
| KR20150067026A (en) * | 2013-12-06 | 2015-06-17 | 주식회사 삼양사 | Pearlescent thermoplastic resin composition and molded article thereof |
| WO2016009048A1 (en) * | 2014-07-17 | 2016-01-21 | Styrolution Group Gmbh | Thermoplastic moulding compound containing microspheres having solid material particles |
| KR20220105926A (en) * | 2021-01-21 | 2022-07-28 | 엘지전자 주식회사 | Chemical strengthening method of hollow glass body and hollow glass body thereof, and high strength lightweight plastic including the same |
| WO2022158722A1 (en) * | 2021-01-21 | 2022-07-28 | 엘지전자 주식회사 | Method for chemically strengthening hollow glass bodies, hollow glass bodies chemically strengthened thereby, and high-strength lightweight plastic having same |
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