KR100609882B1 - Thermoplastic Resin Composition with Exellent Weatherability - Google Patents
Thermoplastic Resin Composition with Exellent Weatherability Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
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- 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
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Abstract
본 발명의 열가소성 수지 조성물은 (A) 아크릴계 합성고무 10∼60 중량부에 시안화비닐 화합물 20∼40 중량%와 방향족비닐 화합물 60∼80 중량%로 이루어진 단량체 혼합물 40∼90 중량부를 중합한 아크릴계 그라프트 중합체 20∼50 중량부; (B) 시안화비닐 화합물 20∼40 중량%와 방향족비닐 화합물 80∼60 중량%를 공중합시킨 시안화비닐 화합물-방향족비닐 화합물 공중합체 50∼80 중량부; (C) 상기 기초수지 (A)+(B) 100 중량부에 대하여 HALS(Hindered Amine Light Stabilizer) 계열 광안정제 0.1∼2 중량부; 및 (D) 상기 기초수지 (A)+(B) 100 중량부에 대하여 벤조트리아졸 계열 광안정제 0.1∼2 중량부; 로 이루어지는 것을 특징으로 한다.The thermoplastic resin composition of the present invention is (A) acrylic graft polymerized 40 to 90 parts by weight of a monomer mixture consisting of 20 to 40% by weight of a vinyl cyanide compound and 60 to 80% by weight of an aromatic vinyl compound in 10 to 60 parts by weight of an acrylic synthetic rubber. 20 to 50 parts by weight of polymer; (B) 50 to 80 parts by weight of a vinyl cyanide compound-aromatic vinyl compound copolymer obtained by copolymerizing 20 to 40% by weight of a vinyl cyanide compound and 80 to 60% by weight of an aromatic vinyl compound; (C) 0.1 to 2 parts by weight of a HALS (Hindered Amine Light Stabilizer) series light stabilizer based on 100 parts by weight of the base resin (A) + (B); And (D) 0.1 to 2 parts by weight of a benzotriazole-based light stabilizer based on 100 parts by weight of the base resin (A) + (B); Characterized in that consists of.
아크릴계 합성고무, 시안화비닐 화합물, 방향족비닐 화합물, HALS 계열 광안정제, 벤조트리아졸 계열 광안정제Acrylic synthetic rubber, vinyl cyanide compound, aromatic vinyl compound, HALS series light stabilizer, benzotriazole series light stabilizer
Description
발명의 분야Field of invention
본 발명은 내후성이 우수한 열가소성 수지조성물에 관한 것이다. 보다 구체적으로 본 발명은 아크릴계 그라프트 중합체, 시안화비닐 화합물-방향족비닐 화합물 공중합체 및 광안정제(photostabilizer)를 일정 비율로 배합하여 내후성이 향상된 열가소성 수지 조성물에 관한 것이다. The present invention relates to a thermoplastic resin composition having excellent weather resistance. More specifically, the present invention relates to a thermoplastic resin composition having improved weather resistance by blending an acrylic graft polymer, a vinyl cyanide compound-aromatic vinyl compound copolymer, and a photostabilizer at a predetermined ratio.
발명의 배경 Background of the Invention
일반적으로 ABS(아크릴로니트릴-부타디엔-스티렌)를 사용하는 플라스틱은 부타디엔 고무가 갖는 π-bond가 UV에 의해 자극되어 분해가 진행되는 문제가 있었고, 이러한 문제는 색이 변하거나 균열이 생기는 등의 가시적 문제로 드러난다. 부타디엔 고무 대신 아크릴 고무를 사용하는 ASA 수지는 내부에 π-bond를 갖고 있지 않아 UV로 인한 분해의 문제를 해결할 수 있는 대안으로 알려져 있다.In general, plastics using ABS (acrylonitrile-butadiene-styrene) have a problem in that π-bond of butadiene rubber is stimulated by UV and decomposes, and such a problem is color change or cracking. It turns out to be a visible problem. ASA resin that uses acrylic rubber instead of butadiene rubber is known as an alternative to solve the problem of decomposition due to UV because it does not have a π-bond inside.
ASA 수지가 ABS에 비하여 상대적으로 우수한 내후성을 보인다고는 하나, 정도의 차이가 있을 뿐 UV에 의한 폴리머 분해를 원천적으로 억제할 수는 없다. 특히 최근 들어 자동차 외장부품을 비롯하여 건축용 외장재 등 옥외용도로의 수요가 늘어나고 있어 UV에 대한 내후성을 향상시키는 것이 기술적 과제라 할 수 있다. 따라서 사용자가 만족할만한 내후성을 갖는 ASA 수지를 개발하고자 다양한 노력을 기울이고 있는 현실이다. Although ASA resin shows superior weather resistance compared to ABS, there is a difference in degree, but it cannot fundamentally suppress polymer degradation by UV. In particular, as the demand for outdoor applications such as automobile exterior parts and building exterior materials is increasing recently, it is a technical problem to improve weather resistance against UV. Therefore, various efforts are being made to develop an ASA resin having a satisfactory weather resistance.
UV에 의한 광화학반응(photo-oxidative degradation)을 감소시키거나 중단시킴으로써 폴리머의 변형을 방지하는 광안정제(photostabilizer)를 첨가하여 일반적인 ASA의 내후성을 보강할 수 있으며 대표적인 광안정제로는 UV 공격(attack)에 의해 발생된 라디칼을 잡아먹는 라디칼 제거제(radical scavenger) 역할을 하는 HALS(Hindered Amine Light Stabilizer) 계열과 UV 흡수제(absorber) 역할을 하는 벤조트리아졸(Benzotriazole)계열이 있다.It is possible to reinforce the weather resistance of general ASA by adding a photostabilizer which prevents the deformation of the polymer by reducing or stopping the photo-oxidative degradation caused by UV. A typical photo stabilizer is UV attack. There are a series of HLS (Hindered Amine Light Stabilizer), which acts as a radical scavenger, and Benzotriazole, which acts as a UV absorber.
본 발명자들은 상기의 문제점을 해결하기 위하여, 아크릴계 그라프트 중합체, 중량평균분자량이 100,000∼500,000 인 시안화비닐 화합물-방향족비닐 화합물 공중합체 및 HALS 계열 광안정제와 벤조트리아졸 계열 광안정제를 일정비율로 사용하여 내후성이 우수한 열가소성 수지 조성물을 개발하기에 이른 것이다. In order to solve the above problems, the present inventors use an acrylic graft polymer, a vinyl cyanide compound-aromatic vinyl compound copolymer having a weight average molecular weight of 100,000 to 500,000, a HALS-based light stabilizer and a benzotriazole-based light stabilizer at a constant ratio. Thus, the thermoplastic resin composition having excellent weather resistance has been developed.
본 발명의 목적은 내후성이 우수한 열가소성 수지 조성물을 제공하기 위한 것이다. An object of the present invention is to provide a thermoplastic resin composition excellent in weatherability.
본 발명의 다른 목적은 내후성이 향상되면서도 충격강도, 유동성, 내열성, 인장강도 등의 물성이 저하되지 않는 열가소성 수지 조성물을 제공하기 위한 것이다.Another object of the present invention is to provide a thermoplastic resin composition in which physical properties such as impact strength, fluidity, heat resistance, tensile strength, etc. are not deteriorated while weatherability is improved.
본 발명의 또 다른 목적은 HALS계 광안정제와 벤조트리아졸 계열 광안정제를 함께 사용함으로써 내후성의 상호상승 효과가 있는 열가소성 수지 조성물을 제공하기 위한 것이다. Still another object of the present invention is to provide a thermoplastic resin composition having a mutually synergistic effect of weather resistance by using a HALS-based light stabilizer and a benzotriazole-based light stabilizer together.
본 발명의 상기 및 기타 목적들은 하기 설명되는 본 발명에 의하여 모두 달성될 수 있다.
The above and other objects of the present invention can be achieved by the present invention described below.
발명의 요약Summary of the Invention
본 발명의 열가소성 수지 조성물은 (A) 아크릴계 합성고무 10∼60 중량부에 시안화비닐 화합물 20∼40 중량%와 방향족비닐 화합물 60∼80 중량%로 이루어진 단량체 혼합물 40∼90 중량부를 중합한 아크릴계 그라프트 중합체 20∼50 중량부; (B) 시안화비닐 화합물 20∼40 중량%와 방향족비닐 화합물 80∼60 중량%를 공중합시킨 시안화비닐 화합물-방향족비닐 화합물 공중합체 50∼80 중량부; (C) 상기 기초수지 (A)+(B) 100 중량부에 대하여 HALS(Hindered Amine Light Stabilizer) 계열 광안정제 0.1∼2 중량부; 및 (D) 상기 기초수지 (A)+(B) 100 중량부에 대하여 벤조 트리아졸 계열 광안정제 0.1∼2 중량부; 로 이루어지는 것을 특징으로 한다. The thermoplastic resin composition of the present invention is (A) acrylic graft polymerized 40 to 90 parts by weight of a monomer mixture consisting of 20 to 40% by weight of a vinyl cyanide compound and 60 to 80% by weight of an aromatic vinyl compound in 10 to 60 parts by weight of an acrylic synthetic rubber. 20 to 50 parts by weight of polymer; (B) 50 to 80 parts by weight of a vinyl cyanide compound-aromatic vinyl compound copolymer obtained by copolymerizing 20 to 40% by weight of a vinyl cyanide compound and 80 to 60% by weight of an aromatic vinyl compound; (C) 0.1 to 2 parts by weight of a HALS (Hindered Amine Light Stabilizer) series light stabilizer based on 100 parts by weight of the base resin (A) + (B); And (D) 0.1 to 2 parts by weight of a benzotriazole-based light stabilizer based on 100 parts by weight of the base resin (A) + (B); Characterized in that consists of.
이하 본 발명의 열가소성 수지 조성물의 각 성분에 대한 상세한 설명은 다음과 같다.Hereinafter, a detailed description of each component of the thermoplastic resin composition of the present invention is as follows.
발명의 구체예에 대한 상세한 설명Detailed Description of the Invention
(A) 아크릴계 그라프트 중합체(A) Acrylic Graft Polymer
본 발명에 따른 아크릴계 그라프트 중합체(A)는 아크릴계 합성고무 10∼60 중량부에 시안화비닐 화합물과 방향족비닐 화합물의 단량체 혼합물 40∼90 중량부를 유화 그라프트 중합방법으로 중합하여 제조된 것이다.The acrylic graft polymer (A) according to the present invention is prepared by polymerizing 40 to 90 parts by weight of a monomer mixture of a vinyl cyanide compound and an aromatic vinyl compound in 10 to 60 parts by weight of an acrylic synthetic rubber.
상기 아크릴계 합성고무는 C2-8의 알킬아크릴레이트로부터 합성된 것이 바람직하다. 아크릴계 합성고무 입자의 평균입경은 0.05∼0.5 ㎛의 범위가 가능하며, 0.1∼0.3 ㎛의 범위가 바람직하다.The acrylic synthetic rubber is preferably synthesized from C 2-8 alkyl acrylate. The average particle diameter of the acrylic synthetic rubber particles may be in the range of 0.05 to 0.5 µm, and preferably in the range of 0.1 to 0.3 µm.
상기 시안화비닐 화합물과 방향족비닐 화합물의 단량체 혼합물은 20∼40 중량%의 시안화 비닐화합물과 60∼80 중량%의 방향족비닐 화합물이 사용되는데, 상기 아크릴계 합성고무에 그라프트되어 있는 시안화비닐 화합물-방향족비닐 화합물 공중합체는 전체 아크릴계 그라프트 중합체(A)에 대하여 40∼70 중량%인 것이 바람직하다.As the monomer mixture of the vinyl cyanide compound and the aromatic vinyl compound, 20 to 40 wt% vinyl cyanide compound and 60 to 80 wt% aromatic vinyl compound are used, and vinyl cyanide compound-aromatic vinyl grafted on the acrylic synthetic rubber. The compound copolymer is preferably 40 to 70% by weight based on the total acrylic graft polymer (A).
본 발명에 따른 아크릴계 그라프트 중합체를 제조하기 위한 시안화비닐 화합물로는 아크릴로니트릴, 메타크릴로니트릴 등이 있으며, 이들은 단독 또는 혼합하 여 사용될 수 있다.Vinyl cyanide compounds for preparing the acrylic graft polymer according to the present invention include acrylonitrile, methacrylonitrile, and the like, which may be used alone or in combination.
또한, 상기 아크릴계 그라프트 중합체를 제조하기 위한 방향족비닐 화합물로는 스티렌, 알파-메틸스티렌, p-t-부틸스티렌, 2,4-디메틸스티렌, 비닐톨루엔 등이 있으며, 이들은 단독 또는 혼합하여 사용될 수 있다. In addition, the aromatic vinyl compounds for preparing the acrylic graft polymer include styrene, alpha-methylstyrene, p-t-butylstyrene, 2,4-dimethylstyrene, vinyltoluene, and the like, which may be used alone or in combination.
본 발명에 따른 아크릴계 그라프트 중합체(A)는 20∼50 중량부로 사용된다. Acrylic graft polymer (A) according to the present invention is used in 20 to 50 parts by weight.
(B) 시안화비닐 화합물-방향족비닐 화합물 공중합체(B) Vinyl Cyanide Compound-Aromatic Vinyl Compound Copolymer
본 발명에 따른 시안화비닐 화합물-방향족비닐 화합물 공중합체(B)는 시안화비닐 화합물 20∼40 중량%와 방향족비닐 화합물 60∼80 중량%를 공중합한 것이다.Vinyl cyanide compound-aromatic vinyl compound copolymer (B) which concerns on this invention copolymerizes 20-40 weight% of vinyl cyanide compounds, and 60-80 weight% of aromatic vinyl compounds.
상기와 같이 제조된 본 발명의 시안화비닐 화합물-방향족비닐 화합물 공중합체는 중량평균분자량이 100,000∼500,000 g/mol 범위인 것이 바람직하다. 상기 시안화비닐 화합물-방향족비닐 화합물 공중합체 중량평균분자량이 100,000 g/mol 보다 낮을 경우에 유동성은 증가하나 인장강도, 충격강도와 같은 기계적 물성이 충분하지 못하고, 500,000 g/mol 보다 높을 경우에는 유동성이 낮아 성형품을 가공하는데 어려움이 있다.The vinyl cyanide compound-aromatic vinyl compound copolymer of the present invention prepared as described above preferably has a weight average molecular weight in the range of 100,000 to 500,000 g / mol. When the weight average molecular weight of the vinyl cyanide compound-aromatic vinyl compound copolymer is lower than 100,000 g / mol, the fluidity is increased, but mechanical properties such as tensile strength and impact strength are not sufficient, and when it is higher than 500,000 g / mol, the fluidity is high. It is difficult to process the molded article because of low
본 발명에 따른 시안화비닐 화합물-방향족비닐 화합물 공중합체(B)의 제조에 사용되는 시안화비닐 화합물로는 아크릴로니트릴, 메타크릴로니트릴 등이 단독으로 또는 혼합되어 사용될 수 있다. Acrylonitrile, methacrylonitrile, or the like may be used alone or in combination as the vinyl cyanide compound used in the production of the vinyl cyanide compound-aromatic vinyl compound copolymer (B) according to the present invention.
본 발명에 따른 시안화비닐 화합물-방향족비닐 화합물 공중합체(B)의 제조에 사용되는 방향족비닐 화합물로는 스티렌, 알파-메틸스티렌, p-t-부틸스티렌, 2,4- 디메틸스티렌, 비닐톨루엔 등이 단독으로 또는 혼합되어 사용될 수 있다. 또한, 이들과 N-페닐말레이미드, N-시클로헥실말레이드, 무수말레인산 등이 공중합될 수 있으며, 제조방법으로는 유화중합법, 현탁중합법, 용액중합법, 괴상중합법 등을 적용할 수 있다.As the aromatic vinyl compound used in the preparation of the vinyl cyanide compound-aromatic vinyl compound copolymer (B) according to the present invention, styrene, alpha-methylstyrene, pt-butylstyrene, 2,4-dimethylstyrene, vinyltoluene, and the like may be used alone. May be used or mixed. In addition, these may be copolymerized with N-phenylmaleimide, N-cyclohexyl maleide, maleic anhydride, and the like, and the preparation method may be emulsified polymerization, suspension polymerization, solution polymerization, bulk polymerization, or the like. have.
본 발명에 따른 시안화비닐 화합물-방향족비닐 화합물 공중합체(B)는 50∼80 중량부로 사용된다.The vinyl cyanide compound-aromatic vinyl compound copolymer (B) according to the present invention is used at 50 to 80 parts by weight.
(C) HALS 계열 광안정제(C) HALS series light stabilizer
본 발명에 따른 HALS(Hindered Amine Light Stabilizer) 계열 광안정제는 상기 기초수지 (A)+(B) 100 중량부에 대하여 0.1∼2 중량부 첨가되며, 바람직하게는 0.1∼1 중량부이다. 0.1 중량부 미만으로 첨가할 경우, 내후성이 좋아지는 효과가 없고, 2 중량부를 초과하여 첨가할 경우 첨가량에 비해 광안정성의 상승효과는 크지 않다.The HALS (Hindered Amine Light Stabilizer) series light stabilizer according to the present invention is added in an amount of 0.1 to 2 parts by weight, and preferably 0.1 to 1 part by weight based on 100 parts by weight of the base resin (A) + (B). When added below 0.1 part by weight, there is no effect of improving weather resistance, and when added in excess of 2 parts by weight, the synergistic effect of light stability is not large compared to the amount added.
본 발명에서는 상기 HALS 계열 광안정제로 피페리디닐 에스테르(piperidinyl esters), 옥사졸리딘(oxazolidines), 피페리디노옥사졸리딘(piperidinooxazolidines), 피페리딘피로아세탈(piperidinespiroacetals), 디아자시클로알카논(diazacycloalkanones) 등이 있는데, 이 중 데칸디오익 산 비스(2,2,6,6,- 테트라메틸-4- 피페리디닐)에스테르(decanetriazole bis(2,2,6,6-tetramethyl-4-piperidinyl)ester)를 사용하는 것이 바람직하다.In the present invention, the HALS-based light stabilizer piperidinyl esters (piperidinyl esters), oxazolidines (oxazolidines), piperidinooxazolidines (piperidinooxazolidines), piperidine pyroacetals (piperidinespiroacetals), diazacycloalkanone ( diazacycloalkanones), among which decandioic acid bis (2,2,6,6, -tetramethyl-4-piperidinyl) ester (decanetriazole bis (2,2,6,6-tetramethyl-4-piperidinyl) (ester) is preferred.
(D) 벤조트리아졸 계열 광안정제 (D) Benzotriazole-based light stabilizer
본 발명에 따른 벤조트리아졸(benzotriazole) 계열 광안정제는 상기 기초수지 (A)+(B) 100 중량부에 대하여 0.1∼2 중량부로 첨가되며, 바람직하게는 0.1∼1 중량부이다. 0.1 중량부 미만으로 첨가할 경우 내후성이 좋아지는 효과가 없고, 2 중량부를 초과하여 첨가할 경우 첨가량에 비해 광안정성의 상승효과가 크지 않다.The benzotriazole series light stabilizer according to the present invention is added in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the base resin (A) + (B), and preferably 0.1 to 1 part by weight. When added below 0.1 part by weight, there is no effect of improving weather resistance, and when added in excess of 2 parts by weight, the synergistic effect of light stability is not large compared to the added amount.
본 발명에서는 벤조트리아졸 계열 광안정제로 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸(2-(2-Hydroxy-5-methyl-phenyl)benzotriazole), 2-(5-클로로-2H-벤조트리아졸-2-일)-4,6-비스(1,1-디메틸에틸)-페놀(2-(5-Chloro-2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)-phenol) 등이 있는데, 이 중 2-(2- 하이드록시-5- 메틸-페닐) 벤조트리아졸을 사용하는 것이 바람직하다.In the present invention, as a benzotriazole-based light stabilizer, 2- (2-hydroxy-5-methyl-phenyl) benzotriazole (2- (2-Hydroxy-5-methyl-phenyl) benzotriazole) and 2- (5-chloro -2H-benzotriazol-2-yl) -4,6-bis (1,1-dimethylethyl) -phenol (2- (5-Chloro-2H-benzotriazol-2-yl) -4,6-bis ( 1,1-dimethylethyl) -phenol), of which 2- (2-hydroxy-5-methyl-phenyl) benzotriazole is preferably used.
상기 HALS(Hindered Amine Light Stabilizer) 계열 광안정제와 벤조트리아졸 계열 광안정제는 5:5 내지 1:9의 비율로 사용하며, 가장 바람직하게는 3:7 의 비율로 사용한다. The HALS (Hindered Amine Light Stabilizer) -based light stabilizer and the benzotriazole-based light stabilizer is used in a ratio of 5: 5 to 1: 9, most preferably in a ratio of 3: 7.
본 발명의 열가소성 수지 조성물은 각각의 용도에 따라 선택적으로 산화방지제, 활제, 충격보강제, 충진제, 무기물 첨가제, 안료 및/또는 염료 등을 더 첨가하여 제조될 수 있다.The thermoplastic resin composition of the present invention may be prepared by further adding an antioxidant, a lubricant, an impact modifier, a filler, an inorganic additive, a pigment and / or a dye, and the like according to each use.
본 발명의 열가소성 수지 조성물은 각각의 용도에 따라 선택적으로 산화방지제, 활제, 충격보강제, 충진제, 무기물 첨가제, 안료 및/또는 염료 등을 더 첨가하여 제조될 수 있다.The thermoplastic resin composition of the present invention may be prepared by further adding an antioxidant, a lubricant, an impact modifier, a filler, an inorganic additive, a pigment and / or a dye, and the like according to each use.
본 발명은 하기의 실시예에 의하여 보다 더 잘 이해될 수 있으며, 하기의 실시예는 본 발명의 예시 목적을 위한 것이며 첨부된 특허청구범위에 의하여 한정되는 보호범위를 제한하고자 하는 것은 아니다. The invention can be better understood by the following examples, which are intended for the purpose of illustration of the invention and are not intended to limit the scope of protection defined by the appended claims.
실시예Example
실시예 1Example 1
아크릴계 그라프트 중합체(A) 40 중량부와 스티렌-아크릴로니트릴 공중합체 수지(B) 60 중량부을 혼합하고, 상기 아크릴계 그라프트 중합체 및 스티렌-아크릴로니트릴의 합 100 중량부에 대하여, 데칸디오익 산 비스 (2,2,6,6-테트라메틸-4-피페리디닐)에스테르 0.5 중량부, 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸 0.5 중량부를 투입한 후, 산화방지제, 충격 보강제, 활제를 첨가하고 용융, 혼련 압출하여 펠렛을 제조하였다. 상기 압출은 L/D=32, 직경 45 ㎜ 인 이축압출기를 사용했으며, 실린더 온도는 230 ℃ 로 설정하였다. 제조된 펠렛으로 사출성형하여 충격강도, 유동성, 열연화점, 온도, 인장강도를 측정하고, 100mm × 100mm × 3mm인 시편을 사출성형하여 내후성평가를 실시하였으며 그 결과를 표 2에 나타내었다.40 parts by weight of the acrylic graft polymer (A) and 60 parts by weight of the styrene-acrylonitrile copolymer resin (B) are mixed, and decandioic is added to 100 parts by weight of the total of the acrylic graft polymer and the styrene-acrylonitrile. 0.5 parts by weight of the acid bis (2,2,6,6-tetramethyl-4-piperidinyl) ester and 0.5 parts by weight of 2- (2-hydroxy-5-methyl-phenyl) benzotriazole were added, followed by oxidation. A pellet was prepared by adding an inhibitor, an impact modifier, a lubricant, and melting and kneading extrusion. The extrusion used a twin screw extruder L / D = 32, 45 mm in diameter, the cylinder temperature was set to 230 ℃. The injection molding was carried out to measure the impact strength, fluidity, thermal softening point, temperature, and tensile strength. The specimens of 100 mm × 100 mm × 3 mm were injection molded and subjected to weather resistance evaluation. The results are shown in Table 2.
실시예2Example 2
데칸디오익 산 비스 (2,2,6,6-테트라메틸-4-피페리디닐)에스테르 0.3 중량부와 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸 0.7 중량부를 첨가한 것을 제외하 고는 상기 실시예 1과 동일하게 실시하였다.0.3 parts by weight of decandioic acid bis (2,2,6,6-tetramethyl-4-piperidinyl) ester and 0.7 parts by weight of 2- (2-hydroxy-5-methyl-phenyl) benzotriazole were added. Except that was carried out in the same manner as in Example 1.
비교실시예1Comparative Example 1
데칸디오익 산 비스 (2,2,6,6-테트라메틸-4-피페리디닐)에스테르 1 중량부를 첨가하고, 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸은 첨가하지 않은 것을 제외하고는 상기 실시예 1과 동일하게 실시하였다.1 part by weight of decandioic acid bis (2,2,6,6-tetramethyl-4-piperidinyl) ester is added and 2- (2-hydroxy-5-methyl-phenyl) benzotriazole is not added. The same process as in Example 1 was conducted except for the above.
비교실시예2Comparative Example 2
데칸디오익 산 비스 (2,2,6,6-테트라메틸-4-피페리디닐)에스테르는 첨가하지 않고, 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸 1 중량부를 첨가한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였다.Decantioic acid bis (2,2,6,6-tetramethyl-4-piperidinyl) ester is not added, but 1 part by weight of 2- (2-hydroxy-5-methyl-phenyl) benzotriazole is added. The same procedure as in Example 1 was conducted except for the one.
비교실시예3Comparative Example 3
데칸디오익 산 비스 (2,2,6,6-테트라메틸-4-피페리디닐)에스테르 2.5 중량부를 첨가하고, 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸 0.5 중량부를 첨가한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였다.
비교실시예 4
데칸디오익 산 비스 (2,2,6,6-테트라메틸-4-피페리디닐)에스테르 0.7 중량부와 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸 0.3 중량부를 첨가한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였다.2.5 parts by weight of decandioic acid bis (2,2,6,6-tetramethyl-4-piperidinyl) ester was added, and 0.5 parts by weight of 2- (2-hydroxy-5-methyl-phenyl) benzotriazole. Except for the addition, it was carried out in the same manner as in Example 1.
Comparative Example 4
0.7 parts by weight of decandioic acid bis (2,2,6,6-tetramethyl-4-piperidinyl) ester and 0.3 parts by weight of 2- (2-hydroxy-5-methyl-phenyl) benzotriazole were added. Except that was carried out in the same manner as in Example 1.
(단위는 중량부임)(Unit is by weight)
상기와 같이 제조된 시편에 대하여 하기의 방법으로 물성을 평가하였으며, 측정결과는 표 2에 나타내었다.The physical properties of the specimens prepared as described above were evaluated in the following manner, and the measurement results are shown in Table 2.
(1) 충격강도: ASTM D256에 따라 아이조드 충격강도(1/4", 23 ℃, kgf·cm/cm)를 측정하였다. (1) Impact strength: Izod impact strength (1/4 ", 23 ℃, kgf · cm / cm) was measured according to ASTM D256.
(2) 유동지수: ASTM D1238에 따라 측정하였다(10Kg, 220℃, g/10min).(2) Flow index: measured according to ASTM D1238 (10Kg, 220 ° C, g / 10min).
(3) 열연화점 온도 : ASTM D1525에 따라 측정하였다(5Kg, 50℃/hr, ℃)(3) Hot softening point temperature: measured according to ASTM D1525 (5Kg, 50 ℃ / hr, ℃)
(4) 인장강도 : ASTM D638에 따라 측정하였다(5mm/min, kgf/ ㎠)(4) Tensile strength: measured according to ASTM D638 (5mm / min, kgf / ㎠)
(5) 내후성 : 일정한 자외선(UV light)를 발생시키는 장치에 2 일간 방치한 후 dE값 측정하였다.(5) Weather resistance: dE value was measured after being left for 2 days in a device that generates a constant UV light.
상기 표 2의 결과로부터, 데칸디오익 산 비스(2,2,6,6-테트라메틸-4-피페리디닐)에스테르와 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸을 동시에 첨가한 실시예1∼2의 경우, 이들을 각각 사용한 비교실시예1∼2에 비하여 내후성이 향상된 것을 알 수 있고, 데칸디오익 산 비스(2,2,6,6-테트라메틸-4-피페리디닐)에스테르를 2 중량부 초과해서 사용한 비교실시예3의 경우 오히려 내후성이 저하되는 것을 알 수 있다. 또한 데칸디오익 산 비스(2,2,6,6-테트라메틸-4-피페리디닐)에스테르와 2-(2-하이드록시-5-메틸-페닐) 벤조트리아졸을 3:7로 사용한 실시예2의 경우 내후성이 가장 우수한 것을 알 수 있다.From the results in Table 2, decandioic acid bis (2,2,6,6-tetramethyl-4-piperidinyl) ester and 2- (2-hydroxy-5-methyl-phenyl) benzotriazole In Examples 1 and 2 added at the same time, it can be seen that weather resistance is improved compared to Comparative Examples 1 and 2 using these, respectively, and decandioic acid bis (2,2,6,6-tetramethyl-4-pipe In the case of Comparative Example 3 using more than 2 parts by weight of ridinyl) ester, it can be seen that weather resistance is rather reduced. Also carried out using decandioic acid bis (2,2,6,6-tetramethyl-4-piperidinyl) ester and 2- (2-hydroxy-5-methyl-phenyl) benzotriazole in 3: 7. In the case of Example 2 it can be seen that the weather resistance is the best.
본 발명은 아크릴계 그라프트 중합체, 스티렌-아크릴로니트릴 공중합체 수지, HALS 계열 광안정제 및 벤조트리아졸 계열의 광안정제를 일정한 비율로 배합함으로써, 충격강도, 유동성, 내열성, 인장강도 등의 물성을 저하시키지 않고 내후성이 향상된 열가소성 수지 조성물을 제공하는 효과를 갖는다. The present invention blends acrylic graft polymer, styrene-acrylonitrile copolymer resin, HALS-based light stabilizer and benzotriazole-based light stabilizer at a constant ratio, thereby lowering physical properties such as impact strength, fluidity, heat resistance, and tensile strength. It does not have the effect of providing a thermoplastic resin composition with improved weather resistance without.
본 발명의 단순한 변형 내지 변경은 이 분야의 통상의 지식을 가진 자에 의하여 용이하게 실시될 수 있으며, 이러한 변형이나 변경은 모두 본 발명의 영역에 포함되는 것으로 볼 수 있다.Simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be seen to be included in the scope of the present invention.
Claims (6)
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| KR1020040086646A KR100609882B1 (en) | 2004-10-28 | 2004-10-28 | Thermoplastic Resin Composition with Exellent Weatherability |
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| KR101240322B1 (en) * | 2009-12-29 | 2013-03-07 | 제일모직주식회사 | Low Gloss Thermoplastic Resin Composition Having Good Weatherability |
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| KR101240322B1 (en) * | 2009-12-29 | 2013-03-07 | 제일모직주식회사 | Low Gloss Thermoplastic Resin Composition Having Good Weatherability |
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