KR100542428B1 - Urethane paints composition for 1-coating - Google Patents
Urethane paints composition for 1-coating Download PDFInfo
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- KR100542428B1 KR100542428B1 KR1020030101082A KR20030101082A KR100542428B1 KR 100542428 B1 KR100542428 B1 KR 100542428B1 KR 1020030101082 A KR1020030101082 A KR 1020030101082A KR 20030101082 A KR20030101082 A KR 20030101082A KR 100542428 B1 KR100542428 B1 KR 100542428B1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/65—Additives macromolecular
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Abstract
본 발명은 금속분안료를 포함하는 피막 조성물 중에 주수지로서 수평균분자량 4,000∼8,000, 수산기가 80∼140mgKOH, 가드너점도 Y∼Z3인 아크릴 폴리올 수지 20∼60중량%와 보조수지로서 수평균분자량 8,000∼50,000, 수산기가 20∼60mgKOH, 가드너점도 W∼Z인 아크릴 폴리올 수지 10∼40중량%를 사용하고 금속분 안료 안정제 1∼15중량%를 포함한 1-코트 우레탄 피막 조성물에 관한 것으로서, 이는 1회 도장으로 우수한 외관 및 광택, 선영성을 가지는 아크릴로니트릴-부타디엔-스티렌 코팅용 피막 조성물을 제공한다. The present invention relates to a coating composition comprising a metal powder, in which the number average molecular weight is 4,000 to 8,000 as the main resin, the hydroxyl group is 80 to 140 mgKOH, 20 to 60% by weight of the acrylic polyol resin having a Gardner viscosity of Y to Z3, and the number average molecular weight is 8,000 to the auxiliary resin. It relates to a 1-coat urethane coating composition comprising 50,000 to 15% by weight of an acrylic polyol resin having a hydroxyl value of 20 to 60 mgKOH and a Gardner viscosity of W to Z and 1 to 15% by weight of a metal powder stabilizer. Provided is a coating composition for acrylonitrile-butadiene-styrene coating having excellent appearance, gloss and sensibility.
Description
본 발명은 아크릴로니트릴-부타디엔-스티렌 소재 코팅용 1코트 우레탄 피막 조성물에 관한 것으로서, 더욱 상세하게는 수지로서 서로 다른 분자량을 갖는 아크릴 폴리올 수지를 혼용하고 경화제로서 비황변형 폴리이소시아네이트계 화합물을 사용하는 금속분안료(알루미늄플레이크, 펄)를 포함하여 물로써 1회 도장으로 우수한 외관 및 광택, 선영성을 가지는 아크릴로니트릴-부타디엔-스티렌 코팅용 피막조성물이다.The present invention relates to a 1-coat urethane coating composition for coating acrylonitrile-butadiene-styrene, and more particularly, to mix acrylic polyol resins having different molecular weights as resins and to use non-sulfur-modified polyisocyanate compounds as curing agents. It is a coating composition for acrylonitrile-butadiene-styrene coating having excellent appearance, gloss and sensibility by coating once with water including metal powder (aluminum flake, pearl).
기존에 사용되는 피막조성물은 금속분안료(알루미늄플레이크, 펄)와 함께 바인더 성분으로서 아크릴 폴리올 또는 폴리에스테르 폴리올 수지를 함유하는데, 이 피막조성물은 ABS 성형물의 표면에 스프레이 적용시 바인더가 금속분안료(알루미늄플레이크,펄)의 입자를 포괄적으로 덮지 못하고(스프레이 표면처리 습윤 오름성의 부족) 안료 입자가 표면에 돌출되어 도막 평활성을 유지시키지 못함으로써 본래의 목적인 보호능 및 외관의 미려함을 나타내지 못하기 때문에, 금속분안료(알루미늄플레이크,펄)를 포함하는 색상도료('하도'라 지칭함)를 ABS 성형물 표면에 도포한 후 젖은 상태에서 하도 보호용 도료(클리어도료)를 습윤 코팅하는 2-코트 1-베이킹(2-coat 1-baking) 방법을 사용해 왔다.Conventional coating compositions contain acrylic polyols or polyester polyol resins as binder components together with metallic pigments (aluminum flakes, pearls), and the coating compositions contain a metallic powder pigment (aluminum flakes) when sprayed on the surface of the ABS molding. Metal powder pigments because they do not comprehensively cover the particles of pearls (lack of spray surface treatment wetness) and pigment particles protrude to the surface and do not maintain the coating film smoothness, and thus do not show the original purpose of protection and appearance beauty. 2-coat 1-baking (coating a color paint containing aluminum flakes and pearls (called 'hado') on the surface of the ABS molding, and then wet coating the undercoat protective paint (clear paint) in the wet state. 1-baking) method.
이러한 2-코트 1-베이킹 방법은 도막 평활성 및 광택의 향상을 가져오기는 하나, 공정이 복잡하고 피막조성물의 손실로 경제성이 저하되는 문제점이 있으며, 바인더로서 아크릴 폴리올 또는 폴리에스테르 폴리올 수지를 포함하는 기존의 하도는 도막의 물리적, 화학적 성질을 조절하기가 어렵다는 단점이 있다.Although the two-coat 1-baking method leads to an improvement in coating film smoothness and gloss, there is a problem in that the process is complicated and economic efficiency is reduced due to loss of the coating composition, and the binder includes an acrylic polyol or a polyester polyol resin. The existing undercoat has a disadvantage that it is difficult to control the physical and chemical properties of the coating film.
이에 본 발명자들은 기존 도료의 단점인 경제성 및 도막물성의 개선할 수 있는 피막 조성물을 개발하기 위해 연구노력하던 중, 바인더로 분자량, 수산기가 및 가드너점도가 다른 2종 이상의 아크릴 폴리올을 혼용하고 금속분안료(알루미늄플레이크, 펄)의 안정화를 위해 금속분안료 안정제를 적용한 결과, 1회 코팅으로 미려한 외관 및 광택을 나타내고 효과적으로 안료돌출을 막을 수 있음을 알게되어 본 발명을 완성하게 되었다. Therefore, the present inventors are trying to develop a coating composition that can improve the economical and coating properties of the disadvantages of the conventional paint, a mixture of two or more acrylic polyols having different molecular weight, hydroxyl value and Gardner viscosity as a binder and metal powder pigment As a result of applying the metal powder stabilizer for stabilization of (aluminum flakes, pearl), the present invention has been found to exhibit a beautiful appearance and gloss with a single coating and effectively prevent pigmentation.
따라서, 본 발명의 목적은 종래의 피막조성물이 가지고 있는 기능에 있어서 기본물성은 보장하면서도 1회 도장으로 우수한 생산성 및 경제성, 미려한 도막외관을 갖는 1-코트 우레탄 피막조성물을 제공하는 데 있다. Accordingly, it is an object of the present invention to provide a one-coat urethane coating composition having excellent productivity and economical efficiency and a beautiful coating appearance with a single coating while ensuring the basic physical properties in the function of the conventional coating composition.
상기와 같은 목적을 달성하기 위한 1-코트 우레탄 피막조성물은 수지, 경화촉매, 금속분안료, 첨가제 및 용제를 포함하며 경화제로서 이소시아네이트기를 함유하는 경화제를 포함하는 것으로서, 수평균분자량 4,000∼8,000, 수산기가 80∼140mgKOH, 가드너점도 Y∼Z3인 아크릴 폴리올 수지 20∼60중량%와 수평균분자량 8,000∼50,000, 수산기가 20∼60mgKOH, 가드너점도 W∼Z인 아크릴 폴리올 수지 10∼40중량%, 금속분 안료 1∼15중량%와 함께 금속분 안료 안정제 1∼15중량% 및 유기용제 1∼15중량%를 포함하는 것임을 그 특징으로 한다.
1-coat urethane coating composition for achieving the above object includes a curing agent containing a resin, a curing catalyst, a metal pigment, additives and a solvent and containing a isocyanate group as a curing agent, the number average molecular weight of 4,000 ~ 8,000, hydroxyl group 80 to 140 mgKOH, 20 to 60 wt% of acrylic polyol resin having Gardner viscosity Y to Z3, number average molecular weight 8,000 to 50,000, 20 to 60 mgKOH of hydroxyl group, 10 to 40 wt% of acrylic polyol resin having Gardner viscosity W to Z, metal powder pigment 1 It is characterized by including 1-15 weight% of metal powder stabilizers and 1-15 weight% of an organic solvent with -15 weight%.
이와같은 본 발명을 더욱 상세하게 설명하면 다음과 같다.The present invention will be described in more detail as follows.
본 발명의 피막 조성물에 있어서 바인더 수지는 공중합된 아크릴 폴리올 수지인 데, 주수지는 수평균분자량 4,000∼8,000, 수산기가 80∼140mgKOH, 유리전이온도 30∼55℃, 가드너점도 Y∼Z3인 아크릴 폴리올 수지를 전체 피막 조성물 중 20∼60중량%로 함유하며, 보조수지로서 수평균분자량 8,000∼50,000, 수산기가 20∼60mgKOH, 유리전이온도 30∼55℃, 가드너점도 W∼Z인 아크릴 폴리올 수지 10∼40중량%로 함유한다. In the coating composition of the present invention, the binder resin is a copolymerized acrylic polyol resin, but the main resin is an acrylic polyol having a number average molecular weight of 4,000 to 8,000, a hydroxyl value of 80 to 140 mgKOH, a glass transition temperature of 30 to 55 ° C, and a Gardner viscosity of Y to Z3. Resin is contained in 20 to 60% by weight of the total coating composition, the number average molecular weight of 8,000 to 50,000 as the auxiliary resin, 20 to 60 mgKOH hydroxyl value, 30 to 55 ℃ glass transition temperature, W-Z acrylic polyol resin 10 to It contains 40 weight%.
상기에서 주수지인 아크릴 폴리올 수지는 도막의 평활성 및 광택, 내약품성, 내스크레치성 등의 도막물성을 우수하게 하는 역할을 하게 된다. 이는 상온경화가 가능한 화합물이 사용되는 것이 가장 바람직하다. 상기의 주수지의 함량이 전체 피막 조성물 중 20중량% 미만일 경우 도막의 평활성이 저하되며 광택이 불량해지고, 도막의 유동성이 저하되어 알루미늄 플레이크나 펄과 같은 금속분안료의 안정성을 떨어뜨리게 되어 금속분안료의 돌출 및 광택, 평활성을 저해시켜 1-코트 피막조성물의 효과를 저해시킨다. 또한, 상기 주수지의 함량이 전체 피막 조성물 중 60중량% 초과일 경우 아크릴로니트릴-부타디엔-스티렌 소재에 대한 부착성이 불량해지며, 충격성이 저하되고, 초기 건조속도 및 내약품성의 불량을 나타낼 수 있다. 이같은 아크릴 폴리올 수지는 CH2=CR1COOR2 (여기에서 R1은 수소원자 내지는 메틸기이고, R2는 수소원자 내지는 1가의 치환 또는 비치환의 지방족 탄화수소기로부터 선택된 기를 나타낸다.)로 표시되는 아크릴계 화합물과 CH2=CR3COOR4OH(여기서 R3는 수소원자 내지는 메틸기이고, R4는 수소원자 내지는 1가의 치환 또는 비치환의 지방족 탄화수소기로부터 선택된 기를 나타낸다.)로 표시되는 수산기 함유 아크릴계 화합물과 비닐모노머의 공중합체로 얻어진 상기 수지성분 조건을 만족하는 아크릴 폴리올 수지이다.Acrylic polyol resin as the main resin in the above serves to excellent coating properties such as smoothness and gloss of the coating film, chemical resistance, scratch resistance. It is most preferable that a compound capable of room temperature curing is used. When the content of the main resin is less than 20% by weight of the total coating composition, the smoothness of the coating film is lowered, the gloss is poor, the fluidity of the coating film is lowered, thereby reducing the stability of the metal powder pigments such as aluminum flakes and pearls. Inhibition of protrusion, gloss, and smoothness inhibits the effect of the 1-coat coating composition. In addition, when the content of the main resin is more than 60% by weight of the total coating composition, the adhesion to the acrylonitrile-butadiene-styrene material is poor, the impact resistance is lowered, and the initial drying rate and chemical resistance is poor. Can be. Such an acrylic polyol resin is an acrylic compound represented by CH 2 = CR 1 COOR 2 (wherein R 1 represents a hydrogen atom or a methyl group, and R 2 represents a group selected from a hydrogen atom or a monovalent substituted or unsubstituted aliphatic hydrocarbon group). And a vinyl group containing a hydroxyl group represented by CH 2 = CR 3 COOR 4 OH, wherein R 3 represents a hydrogen atom or a methyl group, and R 4 represents a group selected from a hydrogen atom or a monovalent substituted or unsubstituted aliphatic hydrocarbon group. It is an acrylic polyol resin which satisfy | fills the said resin component conditions obtained with the copolymer of a monomer.
여기서, CH2=CR1COOR로 표시되는 아크릴계 화합물의 예로는, 메틸아크릴레이트, 에틸아크릴레이트, 부틸아크릴레이트, 이소부틸메타크릴레이트, 프로필메타크릴레이트, 부틸메타크릴레이트, 헥실메타크릴레이트 등이 있고, CH2=CR3COOR4 OH로 표시되는 수산기 함유 아크릴계 화합물의 예로서는 2-히드록시에틸아크릴레이트, 2-히드록시디프로필아크릴레이트, 3-히드록시프로필아크릴레이트, 2-히드록시에틸메타크릴레이트, 2-히드록시프로필메타크릴레이트, 3-히드록시프로필메타크릴레이트 등을 들 수 있다. 또한 비닐 모노머로서 스티렌, 비닐톨루엔 등을 들 수 있다. Examples of the acryl-based compound represented by CH 2 = CR 1 COOR include methyl acrylate, ethyl acrylate, butyl acrylate, isobutyl methacrylate, propyl methacrylate, butyl methacrylate, hexyl methacrylate, and the like. Examples of the hydroxyl group-containing acrylic compound represented by CH 2 = CR 3 COOR 4 OH include 2-hydroxyethyl acrylate, 2-hydroxydipropyl acrylate, 3-hydroxypropyl acrylate, and 2-hydroxyethyl. Methacrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, and the like. Moreover, styrene, vinyltoluene, etc. are mentioned as a vinyl monomer.
상기의 모노머 중 1종이상의 공중합물로 이루어진 아크릴 폴리올 수지는 주바인더로서 도막의 평활성, 내약품성, 광택을 개선하는데 바람직하게 사용될 수 있다.Acrylic polyol resin composed of one or more copolymers of the above monomers can be preferably used to improve the smoothness, chemical resistance, gloss of the coating film as a main binder.
한편, 본 발명의 피막 조성물은 금속분안료의 안정화 및 소재에 대한 부착개선을 위해 상기 주수지와 더불어 보조수지를 도입하게 되는 바, 보조수지인 아크릴 폴리올 수지는 수평균분자량 8,000∼50,000, 수산기가 20∼60mgKOH, 유리전이온도 30∼55℃, 가드너점도 W∼Z인 아크릴 폴리올 수지를 전체 피막 조성물 중 10~40중량%를 포함하여 도막의 부착성, 내충격성, 내수성 등을 양호하게 한다. On the other hand, the coating composition of the present invention is to introduce a secondary resin together with the main resin for the stabilization of the metal pigment and improve the adhesion to the material, the acrylic polyol resin of the auxiliary resin has a number average molecular weight of 8,000 to 50,000, hydroxyl group 20 The adhesive film, impact resistance, water resistance, etc. of a coating film are made favorable by including 10-40 weight% of acrylic polyol resins of -60 mgKOH, glass transition temperature of 30-55 degreeC, and Gardner viscosity W-Z in all the coating compositions.
이같은 역할을 하는 보조수지가 전체 피막 조성물 중 10중량% 미만으로 포함되면 아크릴로니트릴-부타디엔-스티렌 소재에 대한 도막의 부착성이 현저하게 저하되어 도막형성을 저해하고, 초기 건조성을 늦추게 되어 금속분안료의 방향성을 나쁘게 하여 돌출을 유발시킬 수 있으며, 40중량%를 초과하는 경우 1회 코팅의 장점인 도막의 평활성, 광택 등 외관을 해치게 되므로 적용이 바람직하지 않다. If the auxiliary resin, which plays such a role, is contained in less than 10% by weight of the total coating composition, the adhesion of the coating film to the acrylonitrile-butadiene-styrene material is remarkably lowered, which inhibits the film formation and slows the initial dryness. Deterioration of the directionality of the pigment may cause the protrusion, and if it exceeds 40% by weight, the application of the coating is not preferable because it deteriorates the appearance of smoothness, gloss, and the like, which is an advantage of one-time coating.
보조수지로 사용되는 아크릴 폴리올 수지의 공중합에는 상기한 주수지의 아크릴 폴리올 수지 공중합에서 사용되는 단량체를 사용할 수 있으며, 다만 비닐 모노머를 사용하지 않는다.In the copolymerization of the acrylic polyol resin used as an auxiliary resin, the monomer used in the copolymerization of the acrylic polyol resin of the main resin may be used, but a vinyl monomer is not used.
본 발명에 사용된 조성물 중 금속분안료는 1 내지 15중량%의 양으로 포함하며, 금속분안료로는 알루미늄플레이크 또는 펄을 사용할 수 있고, 금속성 안료의 경우는 5 내지 15 중량%가, 펄의 경우는 1 내지 10 중량%가 바람직하다. 금속성 안료는 분쇄, 분산, 여과·농축, 고형분 조정, 계량·포장 등의 공정을 거쳐 생산 되는데, 알루미늄 플레이크로는 일본 토요(Toyo)사의 HS, 1260MS, TCR2150, SCR5130 및 MG1000; 일본 소화사의 550N, MH-8805 및 205N; 미국 실버라인(Silber Line)사의 SSP554 및 SSP-303AR 등이 주로 사용된다. 또한, 펄은 미국 머크(Merck)사의 이리오딘(IRIODIN) 시리즈가 주로 사용된다. 이 금속분안료는 입자의 입경 및 표면가공 상태에 따라서 도막의 밝기 및 색상이 좌우되므로, 적합한 입경의 입자가 적절히 선별되어야 한다.In the composition used in the present invention, the metal powder may be included in an amount of 1 to 15% by weight, and as the metal powder, aluminum flakes or pearls may be used, and in the case of metallic pigments, 5 to 15% by weight may be used. 1 to 10% by weight is preferred. Metallic pigments are produced through a process such as grinding, dispersing, filtration and concentration, solids adjustment, weighing and packaging, and aluminum flakes include HS, 1260MS, TCR2150, SCR5130 and MG1000 from Toyo, Japan; 550N, MH-8805, and 205N from Japanese Digestion Co .; US Silver Line (SSP554 and SSP-303AR) are mainly used. In addition, Pearl is mainly used in the IRIODIN series of Merck, USA. Since the metallic powder has a brightness and a hue of the coating film depending on the particle size and the surface processing state of the particles, particles having a suitable particle diameter should be appropriately selected.
이같은 금속분안료와 더불어서 본 발명의 피막조성물은 물성보완을 위해 금속분안료 안정화제를 1∼15중량%로 포함하는 바, 이는 금속분안료의 분산성 향상, 건조도막의 외관향상, 금속분안료의 입자배열조절, 금속분안료의 저장성 향상, 도료의 유동성 보완 등을 위해서 사용된다. In addition to the metal powder pigments, the coating composition of the present invention contains a metal powder pigment stabilizer in an amount of 1 to 15% by weight for supplementing physical properties, which improves the dispersibility of the metal powder pigments, improves the appearance of the dry coating film, and controls the particle arrangement of the metal powder pigments. It is used to improve the shelf life of metal powders and to improve the fluidity of paints.
금속분안료 안정제로는 폴리아마이드 왁스 및 메틸아크릴레이트, 에틸아크릴레이트, 메틸메타크릴레이트, 에틸헥실아크릴레이트, 부틸메타크릴레이트 및 이소부틸아크릴레이트 중 선택된 1종 이상과 히드록시에틸아크릴레이트, 히드록시프로필아크릴레이트, 히드록시프로필메타크릴레이트 및 히드록시디프로필아크릴레이트 중에서 선택된 1종 이상의 공중합물로서 중량평균분자량이 30,000∼50,000이고 수산기가 10∼30이며 유리전이온도 40∼60℃인 아크릴 폴리올이 5:95∼40:60중량비로 혼합되어 있으며, 제조시 고속교반기로 2,000∼3,000rpm에서 60∼120분 분산시켜 왁스 용액이 1∼15중량%로 함유되어 있는 것을 사용한다. 본 발명 실시예에서는 (주)금강고려화학 제품의 아마이드 왁스 분산용액을 사용한다. As the metal pigment stabilizer, at least one selected from polyamide wax and methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl hexyl acrylate, butyl methacrylate and isobutyl acrylate, and hydroxyethyl acrylate and hydroxy At least one copolymer selected from propyl acrylate, hydroxypropyl methacrylate and hydroxydipropyl acrylate, which has an average weight of 30,000 to 50,000, a hydroxyl group of 10 to 30, and an acrylic polyol having a glass transition temperature of 40 to 60 ° C. It is mixed at a weight ratio of 5:95 to 40:60, and it is prepared by dispersing 60 to 120 minutes at 2,000 to 3,000 rpm using a high speed stirrer to prepare a wax solution containing 1 to 15% by weight. In the embodiment of the present invention, the amide wax dispersion solution of Kumkang Korea Chemical Co., Ltd. is used.
금속분안료 안정화제의 함량이 전체 피막 조성물 중 1중량% 미만이면 금속분 안료의 입자배열 및 저장성 불량문제를 발생시킬 수 있고, 15중량% 초과하면 도막의 평활성 불량, 광택저하의 문제가 있을 수 있다. If the content of the metal powder stabilizer is less than 1% by weight of the total coating composition may cause problems of particle alignment and poor storage properties of the metal powder pigment, when the content of more than 15% by weight may have a problem of poor smoothness, gloss of the coating film.
그밖에 본 발명 피막 조성물은 도막외관을 양호하게 하기 위하여 첨가제 0.5~5중량%를 포함하는 바, 이는 도막의 평활성 향상, 소재에 대한 습윤성 증진, 도료제조시 소포효과 등을 나타내기 위해 사용된다.In addition, the coating composition of the present invention contains 0.5 to 5% by weight of an additive in order to improve the appearance of the coating film, which is used to improve the smoothness of the coating film, the improvement of the wettability on the material, the defoaming effect during the manufacture of the paint, and the like.
한편, 본 발명에서 상온경화가 가능하게 하는 목적으로 사용되는 경화제로는 상기 수지의 수산기와 반응할 수 있는 이소시아네이트를 통상적으로 사용하는데, 내황변성 및 내광성이 우수한 헥사메틸렌 디이소시아네이트, 이소포론 디이소시아네이트, 중에서 1종을 선택하며 이는 단독중합체 혹은 변성체일 수 있다. 주제부/경화제부의 비율은 2.5~5/1이며, 경화제부의 이소시아네이트 함량은 40~60%가 바람직하다.On the other hand, as the curing agent used for the purpose of enabling room temperature curing in the present invention is generally used isocyanate that can react with the hydroxyl group of the resin, hexamethylene diisocyanate, isophorone diisocyanate, excellent yellowing resistance and light resistance One is selected from among which may be homopolymer or modified. The ratio of the main portion / hardener portion is 2.5 to 5/1, and the isocyanate content of the hardener portion is preferably 40 to 60%.
또한, 경화촉매를 사용하여 도막건조 및 경화시간을 단축하는 역할을 하게 되는데, 이때 사용되는 경화촉매의 사용량은 수지와 경화제를 합한 고형분의 양에 대하여 0.01~0.1중량%로 소량 사용한다. 이때 사용되는 경화촉매로는 테트라메틸부탄디아민, 비시크로옥탄, 디부틸틴디라우레이트및 트리에틸렌디아민 중에서 1종 이상을 선택하여 사용할 수 있다.In addition, by using a curing catalyst serves to shorten the coating film drying and curing time, the amount of the curing catalyst used is used in a small amount of 0.01 ~ 0.1% by weight relative to the amount of solid content of the resin and the curing agent. In this case, at least one selected from tetramethylbutanediamine, bicyclooctane, dibutyl tindilaurate, and triethylenediamine may be used as the curing catalyst.
본 발명 피막 조성물에 사용되는 유기 용제로는 n-헵탄, 톨루엔, 크실렌, 석유계 화합물 및 n-헥산 등의 비극성 용제, 에틸 아세테이트, n-부틸 아세테이트, 이소부틸 아세테이트, 에틸렌글리콜 모노에틸 에테르 아세테이트, 디베이직 에스테르, 3-메톡시 부틸 아세테이트, 아밀 아세테이트, 부틸글리콜 아세테이트, 메틸 에 틸 케톤, 메틸 이소부틸 케톤, 아세톤, 디이소부틸 케톤, 이소포론, 사이클로헥사논 및 프로필렌글리콜모노에틸아세테이트 등의 극성 용제, 및 상기 비극성 용제와 극성 용제의 혼합물을 바인더의 특성이나 휘발속도에 따라 적절히 선택하여 사용할 수 있다. 유기 용제는 전체 피막 조성물 중 10∼30중량%로 포함되는 것이 바람직하다. 용제가 과량 사용되면 전체적인 물성에서 부착력 저하나 내구력 저하의 문제가 있고 너무 소량 사용되면 각 특성을 기대하기 어렵다. Organic solvents used in the coating composition of the present invention include non-polar solvents such as n-heptane, toluene, xylene, petroleum compounds and n-hexane, ethyl acetate, n-butyl acetate, isobutyl acetate, ethylene glycol monoethyl ether acetate, Polarity such as dibasic ester, 3-methoxy butyl acetate, amyl acetate, butyl glycol acetate, methyl ethyl ketone, methyl isobutyl ketone, acetone, diisobutyl ketone, isophorone, cyclohexanone and propylene glycol monoethyl acetate A solvent and the mixture of the said nonpolar solvent and a polar solvent can be suitably selected and used according to the characteristic and volatilization rate of a binder. The organic solvent is preferably contained in 10 to 30% by weight of the total coating composition. If the solvent is used excessively, there is a problem of deterioration of adhesion or durability in the overall physical properties, and if used in a small amount, it is difficult to expect each characteristic.
또한 희석제는 도막의 두께를 유지시켜 주며 도장 작업성을 향상시키기 위해 사용되는 것으로 부틸아세테이트, 크실렌, 케톤류의 용제중의 1종 이상을 선택하여 사용할 수 있다. In addition, the diluent is used to maintain the thickness of the coating film and to improve the painting workability can be used by selecting one or more of the solvents of butyl acetate, xylene, ketones.
이하, 본 발명을 실시예에 의거 상세히 설명하면 다음과 같은 바, 본 실시예가 본 발명의 범위를 한정하는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to the following Examples, which are not intended to limit the scope of the present invention.
실시예 1 내지 2 및 비교예 1 내지 4Examples 1-2 and Comparative Examples 1-4
다음 표 1에 기재된 성분 및 해당 사용량을 각각 사용하여 표면처리제 조성물을 제조하였다. Next, the surface treatment agent composition was prepared using the ingredients shown in Table 1 and the corresponding amounts of use thereof.
구체적으로 주바인더, 보조바인더 일부, 용제 일부 및 각종 첨가제 일부를 혼합하여 1시간 동안 교반하였다. 이 혼합물을 계속 교반하면서, 여기에 금속분 안료, 용제 일부 및 금속분안료 안정제, 각종 첨가제 일부를 혼합하여 별도 제조한 슬러리 상태의 금속분 안료 혼합물을 첨가하여 1시간 동안 교반하였다. 헥사메틸렌디이소시아네이트 트라이머 N-3300 경화제(바이엘(Bayer)사제)를 부틸아세테이트에 약 50% 고형물 농도로 희석시킨 조성물을 생성된 혼합물에 첨가하여 피막조성물을 제조하였다. Specifically, the main binder, a part of the auxiliary binder, a part of the solvent and a part of various additives were mixed and stirred for 1 hour. While stirring the mixture continuously, a metal powder pigment mixture in a slurry state prepared by mixing a metal powder pigment, a part of a solvent, a metal powder stabilizer and a part of various additives was added thereto and stirred for 1 hour. A hexamethylene diisocyanate trimer N-3300 curing agent (manufactured by Bayer) was added to butyl acetate at about 50% solids concentration to the resulting mixture to prepare a coating composition.
제조된 표면처리제 조성물의 점도를 13~15초(FORD CUP＃4)로 조정하여 ABS 성형물에 코팅한 후, 70℃에서 30분 동안 건조시키고 상온에서 7일 방치시켰다. 형성된 두께 20 내지 25 ㎛의 도막에 대해 다양한 물성을 측정하여, 그 결과를 다음 표 1에 나타내었다.The viscosity of the prepared surface treatment agent composition was adjusted to 13-15 seconds (FORD CUP # 4) and coated on an ABS molding, then dried at 70 ° C. for 30 minutes and left at room temperature for 7 days. Various physical properties of the formed coating film having a thickness of 20 to 25 μm were measured, and the results are shown in Table 1 below.
단, 비교예 1 내지 2의 경우는 다음 표 1의 배합조성으로써 상기 실시예의 방법과 동일하게 표면처리제 조성물을 제조하되, 이 조성물을 칼라 도료로서 ABS 성형물에 코팅하여 상온에서 5분 동안 건조시킨 후, 이 위에 클리어 도료로서 UT 5750 클리어((주)금강고려화학제품)를 코팅하여 70℃에서 30분 동안 건조시키고 상온에서 7일 방치시켰다. 형성된 두께 25 내지 30 ㎛의 도막에 대해 다양한 물성을 측정하여, 그 결과를 하기 표 1에 나타내었다. However, in the case of Comparative Examples 1 to 2 was prepared in the same manner as the composition of the surface treatment agent composition in the following Table 1, after coating the composition on the ABS molding as a color paint and dried for 5 minutes at room temperature , UT 5750 clear (Kumgang Goryeo Chemical Co., Ltd.) was coated as a clear paint on it, dried at 70 ° C. for 30 minutes, and left at room temperature for 7 days. Various physical properties of the formed coating film having a thickness of 25 to 30 μm were measured, and the results are shown in Table 1 below.
[도장조건 및 도장시스템][Painting conditions and painting system]
-희석: 부틸아세테이트, 크실렌, 메틸이소부틸케톤, 혼합용제를 50 ~ 70중량% 사용하고 점도(포드컵 #4, 25℃ 기준)를 13 ~ 15sec로 조정함.-Dilution: 50 to 70% by weight of butyl acetate, xylene, methyl isobutyl ketone, mixed solvent and adjust the viscosity (pod cup # 4, based on 25 ℃) to 13 to 15 sec.
-도장 시스템: 도장 소재로서는 아크릴로니트릴-부타디엔-스티렌 소재를 이소프로필알콜로 표면세정을 한후 에어 블로잉으로 소재표면을 깨끗하게 한 후 에어스프레이 도장함.-Coating system: As the coating material, acrylonitrile-butadiene-styrene material is surface-washed with isopropyl alcohol, and then the surface is cleaned by air blowing, followed by air spray coating.
1)하도: 기존 아크릴우레탄 2액형도료(UT578(A),㈜금강고려화학제품), 도막두께 15 ~ 20㎛.1) Bottom: Existing two-component acrylic urethane paint (UT578 (A), Kumkang Korea Chemical), coating thickness 15 ~ 20㎛.
2)상도: 하기 실시예 및 비교예의 경우 UT5750(㈜금강고려화학제품) 클리어를 도막두께 25~30㎛으로 1회 도장한다.2) Top coat: In the following Examples and Comparative Examples, UT5750 (Kumkang Koryo Chemical Co., Ltd.) clear coating is applied once with a film thickness of 25 ~ 30㎛.
상기 표 1의 결과로부터, 본 발명에 일정 함량으로 보조바인더로서 아크릴 폴리올 수지를 포함하고 금속분안료 안정제를 포함하는 실시예 1 내지 2의 피막 조 성물은 ABS 코팅물에 코팅하는 것만으로도 제반물성이 우수하나 비교예 1 내지 2의 종래 피막 조성물의 경우는 2-코트 1-베이킹 방식으로 별도의 하도 및 클리어 도료를 도포해야만 동등한 물성을 얻을 수 있었으며 비교예 3 내지 4의 경우는 비록 보조바인더를 사용하나 금속분안료 안정제를 포함하지 않아서 도막외관이나 부착성이 떨어짐을 알 수 있다. From the results of Table 1, the coating composition of Examples 1 to 2 containing an acrylic polyol resin as a secondary binder and a metal pigment stabilizer in a predetermined amount in the present invention is a general physical property only by coating on the ABS coating Although excellent in the conventional coating compositions of Comparative Examples 1 to 2, the same physical properties can be obtained only by applying a separate coat and a clear paint in a 2-coat 1-baking method, and in the case of Comparative Examples 3 to 4, an auxiliary binder is used. However, it does not contain the metal powder stabilizer, it can be seen that the coating film appearance and adhesion is poor.
이상에서 상세히 설명한 바와 같이, 본 발명에 따라 서로 다른 물성을 갖는 아크릴 폴리올 수지를 병용하고 여기에 금속분안료 안정제를 포함하는 피막 조성물은 1-코팅으로 아크릴로니트릴-부타디엔-스티렌 소재에 적용되어 우수한 외관 및 광택, 평활성, 부착성, 내약품성을 나타내며 생산성 및 피막조성물의 손실을 최소화시켜 소비자의 다양한 요구에 신속하게 대응할 수 있다. As described in detail above, according to the present invention, the coating composition comprising an acrylic polyol resin having different physical properties and including a metal pigment stabilizer is applied to the acrylonitrile-butadiene-styrene material by 1-coating and has excellent appearance. And gloss, smoothness, adhesion, and chemical resistance, so that productivity and coating composition loss can be minimized to quickly respond to various needs of consumers.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20140088011A (en) * | 2012-12-31 | 2014-07-09 | 다우 글로벌 테크놀로지스 엘엘씨 | Siloxane-urethane foul release coatings |
| CN114789128A (en) * | 2021-01-26 | 2022-07-26 | 株式会社Kcc | Coating method for forming coating film with special pattern |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101424146B1 (en) * | 2007-08-20 | 2014-08-04 | 주식회사 케이씨씨 | A multi-layered coating, a thermosetting paint composition to form the same, and a plastic molded article having the multi-layered coating |
| KR101463179B1 (en) * | 2012-10-16 | 2014-11-21 | 주영산업 주식회사 | Two-Component Coating Compositions for chrome coating |
| US11186745B2 (en) | 2019-05-30 | 2021-11-30 | Nexen Corporation | Coating composition for golf balls |
| KR102234168B1 (en) * | 2019-05-30 | 2021-03-31 | 주식회사 넥센 | Ccoating composition for golf ball |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140088011A (en) * | 2012-12-31 | 2014-07-09 | 다우 글로벌 테크놀로지스 엘엘씨 | Siloxane-urethane foul release coatings |
| KR102104265B1 (en) | 2012-12-31 | 2020-04-24 | 다우 글로벌 테크놀로지스 엘엘씨 | Siloxane-urethane foul release coatings |
| CN114789128A (en) * | 2021-01-26 | 2022-07-26 | 株式会社Kcc | Coating method for forming coating film with special pattern |
| KR20220107732A (en) * | 2021-01-26 | 2022-08-02 | 주식회사 케이씨씨 | Coating method for providing textured coating |
| KR102463072B1 (en) * | 2021-01-26 | 2022-11-03 | 주식회사 케이씨씨 | Coating method for providing textured coating |
| CN114789128B (en) * | 2021-01-26 | 2023-12-29 | 株式会社Kcc | Coating method for forming special pattern coating film |
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