KR20030052553A - Polypropylene Resin Composition Having Good Coating Property - Google Patents
Polypropylene Resin Composition Having Good Coating Property Download PDFInfo
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- KR20030052553A KR20030052553A KR1020010082557A KR20010082557A KR20030052553A KR 20030052553 A KR20030052553 A KR 20030052553A KR 1020010082557 A KR1020010082557 A KR 1020010082557A KR 20010082557 A KR20010082557 A KR 20010082557A KR 20030052553 A KR20030052553 A KR 20030052553A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
Description
본 발명은 도장성이 우수한 폴리프로필렌 수지 조성물에 관한 것으로, 보다 상세하게는 프라이머 처리없이 직접 도장하여도 충분한 부착 강도를 나타내는 우수한 도장성을 가지며, 성형 외관 및 충격성 등의 물리적 특성이 우수하면서, 경량인 폴리프로필렌 수지 조성물에 관한 것이다.The present invention relates to a polypropylene resin composition excellent in paintability, and more particularly, has excellent paintability showing sufficient adhesion strength even when directly coated without primer treatment, and has excellent physical properties such as molding appearance and impact resistance, and is lightweight. It relates to a polypropylene resin composition.
폴리프로필렌은 경량이고, 또한 기계적 강도 등도 뛰어나기 때문에, 자동차의 내외장부품, 가전부품 등의 다양한 공업 분야에서 폭넓게 이용되고 있다. 그러나, 폴리프로필렌은 무극성 고분자이기 때문에, 도료와의 부착성이 열등하여 도장에 많은 어려움이 있다. 이를 개선하기 위하여 여러 가지 표면 전처리 방법들이 개발되어 사용되고 있다.Since polypropylene is light in weight and excellent in mechanical strength and the like, it is widely used in various industrial fields such as automobile interior and exterior parts and home appliance parts. However, since polypropylene is a nonpolar polymer, the adhesion to paint is inferior and there are many difficulties in painting. In order to improve this, various surface pretreatment methods have been developed and used.
현재 표면 전처리 방법으로 화염처리, 플라즈마처리, 자외선조사처리 및 프라이머 처리방법 등이 일반적으로 적용되고 있으며, 구체적으로 플라즈마 처리를 이용하여 폴리프로필렌계 수지와 스티렌계 수지와의 혼합물에 에틸렌계 일레스토머, 폴리올레핀계 수지 등에 불포화 카르본산 또는 그 유도체를 부가한 변성 공중합체를 첨가한 방법이 보고되어 있다(일본특허공개 평4-50248호). 하지만 이 방법은 도장전에 1,1,1-트리클로로 에탄 등의 할로겐계 유기 용제를 이용 탈지 세척 처리를 가하고, 그 후 기재 표면에 극성기를 도입하기 위해 플라즈마 처리를 행한다. 이와 같은 할로겐계 유기 용제는 인체나 환경에 악영향을 미쳐 세계환경기구로부터 규제되고 있으며, 플라즈마 처리는 작업공정이 번잡하고 시간적으로도 비경제적이다. 이러한 플라즈마 처리 대용으로, 프라이머 도장을 행하는 방법이 알려져 있지만, 이 방법은 작업공정이 번잡하고 동시에 다량의 유기용제를 필요로 하기 때문에 제조 비용이 높아진다는 문제가 있다. 또 프라이머 도장이나 플라즈마 처리를 가하지 않는 방법으로서 프로필렌 에틸렌 블록 공중합체 및 프로필렌 에틸렌 렌덤 공중합체에, 에틸렌과 카르복실기 함유 불포화 화합물의 공중합체를 첨가한 방법이 보고되어 있다(일본특허공개 3-278862호). 하지만 이 방법은 수계세정 후의 도장용 범퍼재료에서는 도장막의 밀착성이 불충분하다.Currently, flame treatment, plasma treatment, ultraviolet irradiation treatment and primer treatment are generally applied as surface pretreatment methods. Specifically, an ethylene elastomer is used in a mixture of polypropylene resin and styrene resin using plasma treatment. The method which added the modified copolymer which added unsaturated carboxylic acid or its derivative (s) to polyolefin resin etc. is reported (Japanese Patent Laid-Open No. 4-50248). However, this method is subjected to a degreasing washing treatment using a halogen-based organic solvent such as 1,1,1-trichloroethane before coating, followed by plasma treatment to introduce a polar group to the surface of the substrate. Such halogen-based organic solvents are adversely affected by the human body and the environment and are regulated by the World Environmental Organization. Plasma treatment is complicated and time-consuming. As a substitute for such plasma treatment, a method of applying a primer is known, but this method has a problem in that manufacturing costs are high because the work process is complicated and a large amount of organic solvent is required. As a method of not applying primer coating or plasma treatment, a method in which a copolymer of ethylene and a carboxyl group-containing unsaturated compound is added to a propylene ethylene block copolymer and a propylene ethylene random copolymer has been reported (Japanese Patent Laid-Open No. 3-278862). . However, this method is insufficient in the adhesion of the coating film in the bumper material for painting after water cleaning.
본 발명의 목적은 상기와 같은 종래 기술의 문제점을 해결하기 위한 것으로, 프라이머 처리없이 직접 도장이 가능하고, 성형성, 강성 및 내충격성이 우수하며, 기존 대비 경량인 폴리프로필렌 수지 조성물을 제공하는 것이다.An object of the present invention is to solve the problems of the prior art as described above, it is possible to directly paint without a primer treatment, to provide a polypropylene resin composition excellent in moldability, rigidity and impact resistance, and lightweight compared to the existing. .
즉, 본 발명은 결정성 폴리프로필렌 60~80중량%, 에틸렌-프로필렌계 공중합 고무 10~30 중량%, 폴리올레핀-그라프트-비닐공중합체 3~10중량%, 및 아조카디카보나마이드계 발포제 1~5 중량%로 이루어진 폴리프로필렌 수지 조성물에 관한 것이다.That is, the present invention is 60 to 80% by weight of crystalline polypropylene, 10 to 30% by weight of ethylene-propylene copolymer rubber, 3 to 10% by weight of polyolefin-graft-vinyl copolymer, and azocardicarbonamide-based blowing agent 1 It relates to a polypropylene resin composition consisting of ~ 5% by weight.
이하에서 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail.
본 발명에서 결정성 폴리프로필렌은 올레핀계 엘라스토머의 흐름성을 향상시키고 내열성을 높이기 위한 것으로, 결정성 폴리프로필렌 단독 중합체, 에틸렌, 1-부텐, 1-펜텐, 1-헥센, 4-메틸펜텐, 1-헵텐, 1-옥텐, 1-데센 등의 다른 알파 올레핀과 프로필렌과의 결정성 블록 공중합체, 랜덤 공중합체 또는 이들의 혼합물이 사용된다.In the present invention, the crystalline polypropylene is to improve the flowability and heat resistance of the olefin-based elastomer, crystalline polypropylene homopolymer, ethylene, 1-butene, 1-pentene, 1-hexene, 4-methylpentene, 1 Crystalline block copolymers, random copolymers or mixtures of other alpha olefins with propylene, such as -heptene, 1-octene and 1-decene, are used.
상기 결정성 폴리프로필렌은 용융지수가 1∼80g/10분(ASTM D1238, 230℃)이며, 바람직하게는 10∼50g/10분의 범위가 되는 것이 좋다.The crystalline polypropylene has a melt index of 1 to 80 g / 10 minutes (ASTM D1238, 230 ° C.), preferably 10 to 50 g / 10 minutes.
전체 조성물 중 결정성 폴리프로필렌 수지의 함량은 60~80중량%이다. 80중량%을 초과하면 엘라스토머의 탄성과 유연성이 떨어지게 되며 충격강도가 급격히 저하된다. 60중량% 미만으로 사용되면 내열성과 흐름성이 떨어지며 강성의 저하로 사용이 어렵게 된다.The content of crystalline polypropylene resin in the total composition is 60 to 80% by weight. If it exceeds 80% by weight, the elasticity and flexibility of the elastomer is reduced and the impact strength is sharply lowered. When used at less than 60% by weight, heat resistance and flowability are inferior and it is difficult to use due to the decrease in rigidity.
본 발명에서 에틸렌-프로필렌계 공중합 고무는 조성물에 엘라스틱한 성질을 부여하여 탄성과 유연성을 나타내기 위한 것으로, 구체적으로 에틸렌-프로필렌 공중합 고무, 에틸렌-프로필렌-1,4-헥사디엔 고무, 에틸렌-프로필렌-시클로펜타디엔고무, 에틸렌-프로필렌-메틸렌-노로보넨 고무, 에틸렌-프로필렌-에틸리덴노르보넨 고무 등을 사용할 수 있다. 이때 에틸렌과 프로필렌비의 중량비는 70:30∼80:20의 범위가 되는 것이 바람직하다. 상기 에틸렌-프로필렌 공중합 고무는 무늬점도(ML1+4, 100℃)가 10~100, 바람직하게는 20~80이며, 용융지수(230℃, 2.16kg)가 0.5~25g/10분이 되는 것이 좋다.Ethylene-propylene copolymer rubber in the present invention is to give elastic properties to the composition to exhibit elasticity and flexibility, specifically, ethylene-propylene copolymer rubber, ethylene-propylene-1,4-hexadiene rubber, ethylene-propylene -Cyclopentadiene rubber, ethylene-propylene-methylene-norbornene rubber, ethylene-propylene-ethylidene norbornene rubber and the like can be used. At this time, the weight ratio of ethylene and propylene ratio is preferably in the range of 70:30 to 80:20. The ethylene-propylene copolymer rubber has a pattern viscosity (ML1 + 4, 100 ° C.) of 10 to 100, preferably 20 to 80, and a melt index (230 ° C., 2.16 kg) of 0.5 to 25 g / 10 minutes.
에틸렌-프로필렌계 공중합 고무의 무늬점도(ML1+4, 100℃)가 10미만의 고무를 사용하면 흐름성은 향상되나 기계적 물성이 저하되며, 100을 초과하는 고무를 사용하면 기계적 물성은 향상되나 흐름성이 저하되어 성형이 어려워진다.When the viscosity of the ethylene-propylene copolymer rubber (ML1 + 4, 100 ℃) is less than 10, the flowability is improved, but the mechanical properties are decreased. If the rubber exceeds 100, the mechanical properties are improved. This falls and molding becomes difficult.
또한 에틸렌-프로필렌 공중합 고무의 용융지수가 0.5g/10분 미만이면 자동차 범퍼와 같은 대형품 또는 자동차 그릴과 같은 복잡한 형상의 제품 사출시 플로우 마크, 타이거 마크 등의 외관불량이 발생하며, 반면 용융지수가 25g/10분을 초과하면 성형성은 우수하나 내충격성이 급격히 저하된다.In addition, when the melt index of the ethylene-propylene copolymer rubber is less than 0.5g / 10 minutes, appearance defects such as flow marks and tiger marks may occur when injecting a large product such as an automobile bumper or a complicated shape product such as an automobile grill. When exceeds 25g / 10min, the moldability is excellent, but the impact resistance is sharply lowered.
전체 조성물 중 에틸렌-프로필렌계 공중합 고무의 함량은 10~30중량%이다. 10중량% 미만으로 혼합되면 엘라스토머의 탄성과 유연성이 떨어지게 되며 특히 도장밀착성이 저하되고, 30중량% 초과하여 사용되면 내열성과 흐름성이 떨어져 상업적으로 사용이 어렵게 된다.The content of the ethylene-propylene copolymer rubber in the total composition is 10 to 30% by weight. If the mixture is less than 10% by weight, the elasticity and flexibility of the elastomer is lowered, in particular, paint adhesion is lowered, when used in excess of 30% by weight is difficult to use commercially low heat resistance and flowability.
본 발명에서 폴리올레핀-그라프트-비닐공중합체는 결정성 폴리프로필렌 수지와 에틸렌-프로필렌계 공중합 고무와의 상용화제로 작용하며, 적정함량 처방의 경우 충격성이 개선되고, 분산성 및 도장밀착성이 향상된다. 구체적으로는 폴리에틸아크릴레이트-그라프트-폴리스티렌, 폴리에틸아크릴레이트-그라프트-폴리스티렌아크릴로니트릴, 폴리글리시딜메타아크릴레이트-그라프트-폴리스티렌 등을 사용할 수 있다. 상기 그라프트 수지는 폴리올레핀과 비닐공중합체 배합비가 60:50~80:20, 분자량이 5000~8000이고, 그라프트율이 50% 이상인 변성수지를 사용하는 것이 바람직하다.In the present invention, the polyolefin-graft-vinyl copolymer acts as a compatibilizer between the crystalline polypropylene resin and the ethylene-propylene copolymer rubber, and in the case of a proper content formulation, the impact resistance is improved, and the dispersibility and coating adhesion are improved. Specifically, polyethylacrylate-graft-polystyrene, polyethylacrylate-graft-polystyreneacrylonitrile, polyglycidyl methacrylate-graft-polystyrene, etc. can be used. The graft resin is preferably a modified resin having a polyolefin and vinyl copolymer blend ratio of 60:50 to 80:20, a molecular weight of 5000 to 8000, and a graft ratio of 50% or more.
전체 조성물 중 폴리올레핀-그라프트-비닐공중합체 수지의 함량은 3~10중량%, 바람직하게는 3~7중량%이다. 3중량% 미만으로 사용되면 혼합효과가 거의 나타나지 않으며 10중량%를 초과하여 사용되면 물성의 저하 및 상분리 현상이 나타나게 된다.The content of the polyolefin-graft-vinyl copolymer resin in the total composition is 3 to 10% by weight, preferably 3 to 7% by weight. When used in less than 3% by weight is almost no mixing effect, when used in excess of 10% by weight will result in physical properties and phase separation.
본 발명에서 발포제는 아조디카보나마이드계 발포제를 사용하며, 그 구체적인 예로서는 피-톨루엔 설포닐 세미카바자이드, 벤젠 설포닐 하이드라자이드, 피-톨루엔 설포닐 하이드라존, 피-톨루엔 설포닐 하이드라자이드 등을 들 수 있다.In the present invention, the blowing agent uses an azodicarbonamide-based blowing agent, and specific examples thereof include p-toluene sulfonyl semicarbazide, benzene sulfonyl hydrazide, p-toluene sulfonyl hydrazone, and p-toluene sulfonyl hydra. Zayed etc. are mentioned.
전체 조성물 중 상기 발포제의 함량은 1~5중량%이다. 1중량% 미만으로 사용되면 경량화 효과를 가져올 수 없고, 5중량%를 초과하여 사용되면 중량은 크게 줄어드나 강성, 충격성, 내열성이 떨어져 상업적으로 사용이 어렵게 된다.The content of the blowing agent in the total composition is 1 to 5% by weight. When used in less than 1% by weight can not bring the weight reduction effect, when used in excess of 5% by weight is greatly reduced but the rigidity, impact resistance, heat resistance is difficult to use commercially.
본 발명의 조성물에는 필요에 따라 각종 첨가제, 보강제, 충진제, 예를 들면 분산제, 내열안정제, 내후안정제, 대전방지제, 활제, 슬립제, 핵제, 난연제, 규회석, 탄산칼슘, 마이카, 카올린, 클레이, 황산바륨, 황산칼슘 등을 본 발명의 목적에 어긋나지 않는 범위에서 첨가하는 것이 가능하다. 특히, 분산제는 본 발명의 수지 조성물에 포함된 탈크 및 안료의 분산 또는 촉매 잔사 중화의 목적으로 사용되는 것으로서, 스테아르산 칼슘(calcium stearate), 스테아르산 아연(zinc stearate), 스테아르산 마그네슘(magnesium stearate), 히드로탈사이트(hydrotalcite), 폴리옥시에틸렌스테아릴에스테르 (polyoxyethylene stearyl ester), 지방산 아미드, 또는 그들의 혼합물을 사용할 수 있다.Various additives, reinforcing agents, fillers such as dispersants, heat stabilizers, weather stabilizers, antistatic agents, lubricants, slip agents, nucleating agents, flame retardants, wollastonite, calcium carbonate, mica, kaolin, clay, sulfuric acid, etc. Barium, calcium sulfate, etc. can be added in the range which does not deviate from the objective of this invention. In particular, the dispersant is used for the purpose of dispersing the talc and the pigment contained in the resin composition of the present invention or neutralizing the catalyst residue, calcium stearate, zinc stearate, magnesium stearate ), Hydrotalcite, polyoxyethylene stearyl ester, fatty acid amide, or mixtures thereof can be used.
이하, 실시예를 통하여 본 발명을 보다 구체적으로 설명하고자 하나, 이러한 실시예들은 단지 설명의 목적을 위한 것으로 본 발명을 제한하는 것으로 해석되어서는 안된다.Hereinafter, the present invention will be described in more detail with reference to examples, but these examples are for illustrative purposes only and should not be construed as limiting the present invention.
실시예 및 비교예Examples and Comparative Examples
니더(Kneader)에 표 1에 기재된 각 성분의 소정량을 일괄투입하여 혼련 후 수지조성물을 제조하였다. 실시예 및 비교예 모두 조성물내 수분 흡습에 의한 물성의 약화를 고려하여 80℃ 오븐에서 2시간 동안 건조하였다. 이 조성물을 삼성클뢰크너 FCM-110(형체력=110톤) 사출기를 사용하여 사출온도는 피딩 호퍼부에서 노즐순으로 30/200/200/200/200℃, 금형온도는 60℃, 사출압력은 60~100bar로 사출성형하여 시험편을 제작하였다.A predetermined amount of each component shown in Table 1 was collectively added to kneader to prepare a resin composition after kneading. Both Examples and Comparative Examples were dried in an 80 ° C. oven for 2 hours in consideration of the deterioration of physical properties due to moisture absorption in the composition. Using this composition, Samsung Kleckerner FCM-110 (molding force = 110 tons) injection machine, the injection temperature is 30/200/200/200/200 ℃ in order from the feeding hopper to the nozzle, the mold temperature is 60 ℃, injection pressure is 60 Test specimens were prepared by injection molding at ˜100 bar.
도장은 얻은 수지조성물의 사출성형품(300mm X 150mm X 3.2mm)에 일반적으로 사용되는 트리클로로에탄 및 프라이머 전처리 탈지공정 없이 도료를 스프레이 도장후 도장품을 80℃, 30분간 건조하였다. 도장한 성형품의 도장 밀착성은 Cross Cut 시험방법(ASTM D3359)에 의해 평가하였다. Cross Cut 시험은 칼로 가로 및 세로방향의 바둑판모양을 2mm 간격으로 100개를 만든 후 세로판 테이프에 의해 이형 시험을 실시하여 이형된 면적에 의해 밀착성을 평가하는 방법이다. 그 결과는 표 2와 같다.The coating was sprayed with paint without the pre-treatment and degreasing process of trichloroethane and primer commonly used in the injection molded product (300 mm X 150 mm X 3.2 mm) of the obtained resin composition, and then the coated product was dried at 80 ° C. for 30 minutes. The coating adhesion of the coated molded article was evaluated by the Cross Cut test method (ASTM D3359). The Cross Cut test is a method of evaluating the adhesiveness by the release area by making 100 pieces of horizontal and vertical checkerboard patterns with a knife at 2mm intervals, and then performing a release test with a vertical tape. The results are shown in Table 2.
* PP: 폴리프로필렌, 용융지수 22g/10분(ASTM D1238, 230℃),* PP: polypropylene, melt index 22g / 10min (ASTM D1238, 230 ℃),
에틸렌 단위함량 25mol%이하Ethylene Unit Content Below 25mol%
* EP-1: 폴리올레핀 엘라스토마, 무늬점도(ML1+4, 121℃) 35,* EP-1: polyolefin elastomer, pattern viscosity (ML1 + 4, 121 ° C) 35,
옥텐 함량 28중량%Octene content 28% by weight
* EP-2 : 에틸렌-프로필렌계 공중합고무, 무늬점도(ML1+4, 100℃) 19,* EP-2: ethylene-propylene copolymer rubber, pattern viscosity (ML1 + 4, 100 ℃) 19,
프로필렌 함량 22중량%Propylene content 22 wt%
* EP-3 : 에틸렌-프로필렌계 공중합고무, 무늬점도(ML1+4, 100℃) 70,* EP-3: Ethylene-propylene copolymer rubber, pattern viscosity (ML1 + 4, 100 ℃) 70,
프로필렌 함량 26중량%Propylene content 26 wt%
* EP-4 : 에틸렌-프로필렌계 공중합고무, 무늬점도(ML1+4, 100℃) 24,* EP-4: Ethylene-propylene copolymer rubber, pattern viscosity (ML1 + 4, 100 ℃) 24,
프로필렌 함량 27중량%Propylene Content 27% By Weight
* PG-1 : 폴리에틸아크릴레이트-그라프트-폴리스티렌* PG-1: Polyethylacrylate-graft-polystyrene
* PG-2 : 폴리에틸아크릴레이트-그라프트-폴리스티렌아크릴로니트릴PG-2: Polyethylacrylate-graft-polystyreneacrylonitrile
* 발포제 : 피-톨루엔 설포닐 세미카바자이드(CELLCOM-TSS, (주)금양)* Foaming agent: P-toluene sulfonyl semicarbazide (CELLCOM-TSS, Kumyang)
[물성 평가 방법][Property evaluation method]
* 용융지수: ASTM D1238(230℃, 2.16kg), * 밀도: ASTM D1505* Melt Index: ASTM D1238 (230 ℃, 2.16kg) * Density: ASTM D1505
* 굴곡 탄성률: ASTM D790, * 상온 충격강도: ASTM D256* Flexural modulus: ASTM D790, * Room temperature impact strength: ASTM D256
* 저온 충격강도: ASTM D256, * 열변형 온도: ASTM D648* Low temperature impact strength: ASTM D256, * Heat deflection temperature: ASTM D648
* 도막밀착성(CROSS CUT METHOD): ASTM D3359* CROSS CUT METHOD: ASTM D3359
[도장후 시험편 처리조건 및 결과기호][Test Processing Conditions and Result Symbols after Coating]
* 온도 : 23±3℃, 상대습도 : 50±5%, 7일 방치후 도막 밀착성 측정* Temperature: 23 ± 3 ℃, relative humidity: 50 ± 5%, after 7 days left
* 결과기호 : ○ → 이형이 없음 ○~△ → 약 5~10% 이형,* Result symbol: ○ → No deformation ○ ~ △ → About 5 ~ 10% release,
△ → 약 11~20% 이형, X → 약 20% 이상 이형△ → about 11-20% release, X → about 20% release
본 발명에 의해 프라이머 처리없이 직접 도장하여도 충분한 부착 강도를 나타내는 우수한 도장성을 가지며, 성형 외관 및 충격성 등의 물리적 특성이 우수하고, 경량화에 의해 생산원가절감 효과가 뛰어난 폴리프로필렌 수지 조성물을 제공할 수 있다.According to the present invention, it is possible to provide a polypropylene resin composition having excellent coating properties showing sufficient adhesion strength even when directly coated without a primer treatment, having excellent physical properties such as molding appearance and impact properties, and excellent in cost reduction effect by weight reduction. Can be.
Claims (7)
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08231816A (en) * | 1994-07-15 | 1996-09-10 | Sumitomo Chem Co Ltd | Polypropylene resin composition, its foam, and its production |
| KR20000002592A (en) * | 1998-06-22 | 2000-01-15 | 유현식 | Good coating thermoplastic resin composition |
| US6218023B1 (en) * | 1997-04-21 | 2001-04-17 | Montell North America, Inc. | Co-extruded laminate comprising at least one propylene graft copolymer layer |
| KR20010081891A (en) * | 2000-02-22 | 2001-08-29 | 김종목 | interior board of polyolefin for building |
-
2001
- 2001-12-21 KR KR1020010082557A patent/KR20030052553A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08231816A (en) * | 1994-07-15 | 1996-09-10 | Sumitomo Chem Co Ltd | Polypropylene resin composition, its foam, and its production |
| US6218023B1 (en) * | 1997-04-21 | 2001-04-17 | Montell North America, Inc. | Co-extruded laminate comprising at least one propylene graft copolymer layer |
| KR20000002592A (en) * | 1998-06-22 | 2000-01-15 | 유현식 | Good coating thermoplastic resin composition |
| KR20010081891A (en) * | 2000-02-22 | 2001-08-29 | 김종목 | interior board of polyolefin for building |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019103555A3 (en) * | 2017-11-24 | 2019-07-18 | 지에스칼텍스 주식회사 | Polypropylene resin composition and molded article manufactured therefrom |
| KR101984547B1 (en) * | 2017-11-24 | 2019-09-03 | 지에스칼텍스 주식회사 | Polypropylene resin composition and article prepared therefrom |
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