KR102602456B1 - Polyester Paint Composition for PCM - Google Patents
Polyester Paint Composition for PCM Download PDFInfo
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- KR102602456B1 KR102602456B1 KR1020160114242A KR20160114242A KR102602456B1 KR 102602456 B1 KR102602456 B1 KR 102602456B1 KR 1020160114242 A KR1020160114242 A KR 1020160114242A KR 20160114242 A KR20160114242 A KR 20160114242A KR 102602456 B1 KR102602456 B1 KR 102602456B1
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- Prior art keywords
- weight
- pcm
- polyester
- paint composition
- coating film
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- 239000003973 paint Substances 0.000 title claims abstract description 38
- 239000000203 mixture Substances 0.000 title claims abstract description 37
- 229920000728 polyester Polymers 0.000 title claims abstract description 36
- 239000004645 polyester resin Substances 0.000 claims abstract description 24
- 229920001225 polyester resin Polymers 0.000 claims abstract description 24
- 230000009477 glass transition Effects 0.000 claims abstract description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims description 27
- 238000000576 coating method Methods 0.000 claims description 27
- 239000003086 colorant Substances 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000006224 matting agent Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000003377 acid catalyst Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 239000008199 coating composition Substances 0.000 claims description 4
- 239000004611 light stabiliser Substances 0.000 claims description 4
- 239000004848 polyfunctional curative Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 description 15
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 12
- 229920000877 Melamine resin Polymers 0.000 description 10
- 239000004640 Melamine resin Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- BLRJSXFWDNMKQT-UHFFFAOYSA-N 2-n-methoxy-1,3,5-triazine-2,4,6-triamine Chemical compound CONC1=NC(N)=NC(N)=N1 BLRJSXFWDNMKQT-UHFFFAOYSA-N 0.000 description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 3
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 3
- CJMZLCRLBNZJQR-UHFFFAOYSA-N ethyl 2-amino-4-(4-fluorophenyl)thiophene-3-carboxylate Chemical compound CCOC(=O)C1=C(N)SC=C1C1=CC=C(F)C=C1 CJMZLCRLBNZJQR-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 1
- 229910002016 Aerosil® 200 Inorganic materials 0.000 description 1
- 229920003275 CYMEL® 325 Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- RSOILICUEWXSLA-UHFFFAOYSA-N bis(1,2,2,6,6-pentamethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(C)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(C)C(C)(C)C1 RSOILICUEWXSLA-UHFFFAOYSA-N 0.000 description 1
- OSIVCXJNIBEGCL-UHFFFAOYSA-N bis(2,2,6,6-tetramethyl-1-octoxypiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(OCCCCCCCC)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(OCCCCCCCC)C(C)(C)C1 OSIVCXJNIBEGCL-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- QYMFNZIUDRQRSA-UHFFFAOYSA-N dimethyl butanedioate;dimethyl hexanedioate;dimethyl pentanedioate Chemical compound COC(=O)CCC(=O)OC.COC(=O)CCCC(=O)OC.COC(=O)CCCCC(=O)OC QYMFNZIUDRQRSA-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/028—Pigments; Filters
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/45—Anti-settling agents
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
본 발명은 수평균 분자량이 1,000 내지 5,000이고, 수산기 값이 20 내지 150 mgKOH/g이며 유리전이온도가 20 내지 30℃인 폴리에스테르 수지를 포함하는 피씨엠용 폴리에스테르 도료 조성물을 제공한다.The present invention provides a polyester paint composition for PCM containing a polyester resin having a number average molecular weight of 1,000 to 5,000, a hydroxyl value of 20 to 150 mgKOH/g, and a glass transition temperature of 20 to 30°C.
Description
본 발명은 피씨엠용 폴리에스테르 도료 조성물에 관한 것으로, 보다 상세하게는 고온 다습한 지역에서도 우수한 내후성을 나타내는 초고내후성 피씨엠용 폴리에스테르 도료 조성물에 관한 것이다.The present invention relates to a polyester paint composition for PCM, and more specifically, to a polyester paint composition for PCM with ultra-high weather resistance that exhibits excellent weather resistance even in high temperature and high humidity areas.
피씨엠(PCM, Pre-Coated Metal) 도료 조성물은 우수한 내후성(weather resistance), 내식성, 내스크래치성, 광택(gloss), 강도(hardness) 및 유연성(flexibility)이 요구되며, 건축용 외장재 및 가전제품 등에 다양하게 적용되고 있다. 일반적으로 피씨엠 도료 조성물에 사용되는 바인더 수지는 폴리에스테르계, 아크릴계, 우레탄계, 에폭시계, 실리콘계, 불소계, 폴리염화비닐계 등으로 다양하다. 피씨엠 도료 조성물의 대부분은 열경화성이며, 특수한 물성을 요구하는 제품 이외에는 폴리에스테르계 수지를 이용한 피씨엠 도료 조성물이 가장 많이 사용되고 있다.Pre-Coated Metal (PCM) paint compositions require excellent weather resistance, corrosion resistance, scratch resistance, gloss, hardness, and flexibility, and are used for exterior building materials and home appliances. It is applied in various ways. In general, binder resins used in PCM paint compositions are diverse, including polyester-based, acrylic-based, urethane-based, epoxy-based, silicone-based, fluorine-based, and polyvinyl chloride-based. Most of the PCM paint compositions are thermosetting, and PCM paint compositions using polyester resins are most commonly used except for products requiring special physical properties.
종래 피씨엠용 폴리에스테르 도료 조성물은 자외선이 강하고 고온다습한 지역에서 쵸킹 등의 내후성 열세현상이 종종 발생하는 문제점이 있었다.Conventional polyester paint compositions for PCM had the problem of poor weather resistance, such as chalking, often occurring in areas with strong ultraviolet rays and high temperatures and humidity.
본 발명의 한 목적은 자외선이 강하고 고온다습한 기후 환경에 장기간 노출되어도 우수한 광택유지율, 색상유지율 및 쵸킹 저항성을 나타낼 수 있는 초고내후성 피씨엠용 폴리에스테르 도료 조성물을 제공하는 것이다.One object of the present invention is to provide an ultra-high weather resistance polyester paint composition for PCM that can exhibit excellent gloss retention, color retention, and chalking resistance even when exposed to a climate environment with strong ultraviolet rays and high temperature and humidity for a long period of time.
한편으로, 본 발명은 수평균 분자량이 1,800 내지 2,200이고, 수산기 값이 65 내지 75 mgKOH/g이며 유리전이온도가 20 내지 30℃ 폴리에스테르 수지를 포함하는 피씨엠용 폴리에스테르 도료 조성물을 제공한다.On the other hand, the present invention provides a polyester paint composition for PCM containing a polyester resin with a number average molecular weight of 1,800 to 2,200, a hydroxyl value of 65 to 75 mgKOH/g, and a glass transition temperature of 20 to 30°C.
본 발명의 일 실시형태에서, 상기 피씨엠용 폴리에스테르 도료 조성물은 수평균 분자량이 1,800 내지 2,200이고, 수산기 값이 65 내지 75 mgKOH/g이며 유리전이온도가 20 내지 30℃인 폴리에스테르 수지 30 내지 40 중량%; 조색제 40 내지 50 중량%; 경화제 5 내지 10 중량%; 산촉매 0.1 내지 3 중량%; 소광제 1 내지 5 중량%; 및 용제 3 내지 20 중량%를 포함할 수 있다.
In one embodiment of the present invention, the polyester paint composition for PCM is a polyester resin 30 to 40 having a number average molecular weight of 1,800 to 2,200, a hydroxyl value of 65 to 75 mgKOH/g, and a glass transition temperature of 20 to 30°C. weight%; 40 to 50% by weight of coloring agent; 5 to 10% by weight of hardener; 0.1 to 3% by weight of acid catalyst; 1 to 5% by weight of matting agent; and 3 to 20% by weight of solvent.
다른 한편으로, 본 발명은 상기 피씨엠용 폴리에스테르 도료 조성물을 이용하여 형성된 도막을 제공한다.On the other hand, the present invention provides a coating film formed using the polyester coating composition for PCM.
또 다른 한편으로, 본 발명은 상기 피씨엠용 폴리에스테르 도료 조성물을 이용하여 형성된 도막으로 코팅된 피씨엠 강판을 제공한다.On the other hand, the present invention provides a PCM steel sheet coated with a coating film formed using the polyester paint composition for PCM.
본 발명에 따른 피씨엠용 폴리에스테르 도료 조성물은 자외선이 강하고 고온다습한 기후 환경에 장기간 노출되어도 우수한 광택유지율, 색상유지율 및 쵸킹 저항성을 나타낼 수 있는 초고내후성 도막을 형성할 수 있다.The polyester paint composition for PCM according to the present invention can form an ultra-high weather resistance coating film that can exhibit excellent gloss retention, color retention, and chalking resistance even when exposed to a climate environment with strong ultraviolet rays and high temperature and humidity for a long period of time.
이하, 본 발명을 보다 상세히 설명한다.
Hereinafter, the present invention will be described in more detail.
본 발명의 일 실시형태는 수평균 분자량이 1,800 내지 2,200이고, 수산기 값이 65 내지 75 mgKOH/g이며 유리전이온도가 20 내지 30℃ 폴리에스테르 수지를 포함하는 피씨엠용 폴리에스테르 도료 조성물에 관한 것이다.
One embodiment of the present invention relates to a polyester paint composition for PCM containing a polyester resin having a number average molecular weight of 1,800 to 2,200, a hydroxyl value of 65 to 75 mgKOH/g, and a glass transition temperature of 20 to 30°C.
본 발명의 일 실시형태에서, 상기 폴리에스테르 수지는 전술한 바와 같이 수평균 분자량이 1,800 내지 2,200이고, 수산기 값이 65 내지 75 mgKOH/g이며 유리전이온도가 20 내지 30℃이다. 상기 폴리에스테르 수지의 수평균 분자량, 수산기 값 및 유리전이온도가 상기 범위를 벗어나면 자외선이 강하고 고온다습한 조건에 장기간 노출될 경우 광택유지율, 색상유지율 및 쵸킹 저항성이 떨어질 수 있다.
In one embodiment of the present invention, as described above, the polyester resin has a number average molecular weight of 1,800 to 2,200, a hydroxyl value of 65 to 75 mgKOH/g, and a glass transition temperature of 20 to 30°C. If the number average molecular weight, hydroxyl value, and glass transition temperature of the polyester resin are outside the above range, gloss retention, color retention, and chalking resistance may decrease when exposed to strong ultraviolet rays and high temperature and humidity conditions for a long period of time.
본 발명의 일 실시형태에 따른 피씨엠용 폴리에스테르 도료 조성물은 상기 폴리에스테르 수지 30 내지 40 중량%; 조색제 40 내지 50 중량%; 경화제 5 내지 10 중량%; 산촉매 0.1 내지 3 중량%; 소광제 1 내지 5 중량%; 및 용제 3 내지 20 중량%를 포함할 수 있다.
A polyester paint composition for PCM according to an embodiment of the present invention includes 30 to 40% by weight of the polyester resin; 40 to 50% by weight of coloring agent; 5 to 10% by weight of hardener; 0.1 to 3% by weight of acid catalyst; 1 to 5% by weight of matting agent; and 3 to 20% by weight of solvent.
본 발명의 일 실시형태에서, 상기 폴리에스테르 수지는 폴리에스테르 도료 조성물의 전체 100 중량%에 대해 30 내지 40 중량% 범위로 사용할 수 있다. 상기 폴리에스테르 수지가 30 중량% 미만으로 포함되면 가공성 저하 등의 단점이 있을 수 있고, 40 중량% 초과로 포함되면 은폐력 저하 등의 단점이 있을 수 있다.
In one embodiment of the present invention, the polyester resin may be used in an amount of 30 to 40% by weight based on the total 100% by weight of the polyester paint composition. If the polyester resin is included in less than 30% by weight, there may be disadvantages such as reduced processability, and if it is included in more than 40% by weight, there may be disadvantages such as reduced hiding power.
본 발명의 일 실시형태에서, 상기 조색제는 도막에 은폐력 및/또는 착색력을 부여하는 성분이다. 상기 조색제로는 피씨엠용 폴리에스테르 도료 조성물에 일반적으로 사용되는 것을 제한 없이 사용할 수 있다. 구체적으로, 상기 조색제로는 안료로서 산화티탄 백색, 시아닌 블루, 산화철 적색, 카본블랙, 크롬 옐로우 등을 포함하는 것을 사용할 수 있다. 상기 조색제 중 안료의 함량은 조색제 100 중량%에 대하여 30 내지 70 중량%일 수 있다. 상기 조색제는 도막의 색상 조절을 위해 단독 또는 혼합하여 사용할 수 있다.In one embodiment of the present invention, the coloring agent is a component that imparts hiding power and/or coloring power to the paint film. As the colorant, those commonly used in polyester paint compositions for PCM can be used without limitation. Specifically, the coloring agent may be a pigment containing titanium oxide white, cyanine blue, iron oxide red, carbon black, chrome yellow, etc. The content of pigment in the colorant may be 30 to 70% by weight based on 100% by weight of the colorant. The coloring agent can be used alone or in combination to adjust the color of the paint film.
상기 조색제는 피씨엠용 폴리에스테르 도료 조성물의 전체 100 중량%에 대해 40 내지 50 중량% 범위로 사용할 수 있다. 상기 조색제의 함량이 40 중량% 미만이면 은폐불량 문제가 있을 수 있고, 50 중량% 초과이면 도막물성 저하 및 비용상승 문제가 있을 수 있다.
The colorant can be used in the range of 40 to 50% by weight based on the total 100% by weight of the polyester paint composition for PCM. If the content of the colorant is less than 40% by weight, there may be a problem of poor concealment, and if the content of the colorant is more than 50% by weight, there may be problems of reduced coating film properties and increased costs.
본 발명의 일 실시형태에서, 상기 경화제는 폴리에스테르 수지를 경화시켜 안정한 도막을 형성시키는 역할을 한다.In one embodiment of the present invention, the curing agent serves to cure the polyester resin to form a stable coating film.
상기 경화제로는 폴리에스테르 수지에 일반적으로 사용되는 것을 제한 없이 사용할 수 있다. 구체적으로, 상기 경화제로는 멜라민 수지 등을 사용할 수 있다.The curing agent generally used in polyester resin can be used without limitation. Specifically, melamine resin, etc. may be used as the curing agent.
상기 멜라민 수지로는 메톡시 멜라민 수지, 또는 메톡시/부톡시 혼합형 멜라민 수지 등을 사용할 수 있다. 상기 메톡시 멜라민 수지는 메탄올과 포름알데하이드의 중합에 의하여 얻어지며, 메톡시/부톡시 혼합형 멜라민 수지는 메탄올과 이소-부탄올 또는 노르말-부탄올의 혼합물과, 포름알데하이드의 중합에 의하여 얻어질 수 있다. 상기 멜라민 수지의 분자량은 300 내지 1,000 일 수 있다.The melamine resin may be methoxy melamine resin, or methoxy/butoxy mixed melamine resin. The methoxy melamine resin can be obtained by polymerizing methanol and formaldehyde, and the methoxy/butoxy mixed melamine resin can be obtained by polymerizing a mixture of methanol, iso-butanol, or normal-butanol, and formaldehyde. The molecular weight of the melamine resin may be 300 to 1,000.
상기 메톡시 멜라민 수지의 시판 제품의 예로는 MR603(CHANG CHUN PLASTIC 사), CYMEL-303, CYMEL-325, CYMEL-327, CYMEL-350, CYMEL-370(CYTEC사), RESIMINE-7550, RESIMINE-717, RESIMINE-730, RESIMINE-747, RESIMINE-797 (SOLUTIA사), BE-3717, BE-370, BE-3747(BIP사) 등이 있으며, 메톡시/부톡시 혼합형 멜라민 수지의 시판 제품의 예로는 RESIMINE-755, RESIMINE-757, RESIMINE-751(SOLUTIA사), CYMEL-1168, CYMEL-1170, CYMEL-232(CYTEC사) 등이 있다.Examples of commercially available products of the methoxy melamine resin include MR603 (CHANG CHUN PLASTIC), CYMEL-303, CYMEL-325, CYMEL-327, CYMEL-350, CYMEL-370 (CYTEC), RESIMINE-7550, RESIMINE-717. , RESIMINE-730, RESIMINE-747, RESIMINE-797 (SOLUTIA), BE-3717, BE-370, BE-3747 (BIP), etc. Examples of commercially available products of methoxy/butoxy mixed melamine resin include There are RESIMINE-755, RESIMINE-757, RESIMINE-751 (SOLUTIA), CYMEL-1168, CYMEL-1170, CYMEL-232 (CYTEC).
상기 경화제는 피씨엠용 폴리에스테르 도료 조성물의 전체 100 중량%에 대해 5 내지 10 중량% 범위로 사용할 수 있다. 상기 경화제의 함량이 5 중량% 미만이면 내오염성 및 내용제성이 저하될 수 있고, 10 중량% 초과이면 도막의 유연성 및 내충격성이 저하될 수 있다.
The curing agent may be used in an amount of 5 to 10% by weight based on 100% by weight of the polyester paint composition for PCM. If the content of the curing agent is less than 5% by weight, contamination resistance and solvent resistance may be reduced, and if the content of the curing agent is more than 10% by weight, the flexibility and impact resistance of the coating film may be reduced.
본 발명의 일 실시형태에서, 상기 산촉매는 폴리에스테르 수지와 경화제의 경화를 촉진시킴으로써 도막의 치밀도를 개선시키는 역할을 한다.In one embodiment of the present invention, the acid catalyst serves to improve the density of the coating film by promoting curing of the polyester resin and the curing agent.
상기 산촉매로는 p-톨루엔설폰산, 에폭시 차폐된 DNNSA(dinonylnaphthalenesulfonic acid), 또는 DDBSA(dodecylbenzenesulfonic acid) 등을 사용할 수 있으며, 이들은 단독으로 또는 2종 이상을 조합하여 사용할 수 있다.As the acid catalyst, p -toluenesulfonic acid, epoxy-shielded dinonylnaphthalenesulfonic acid (DNNSA), or dodecylbenzenesulfonic acid (DDBSA) can be used, and these can be used alone or in combination of two or more.
상기 산촉매는 피씨엠용 폴리에스테르 도료 조성물 전체 100 중량%에 대하여 0.1 내지 3 중량%의 양으로 포함될 수 있다. 상기 산촉매가 0.1 중량% 미만으로 포함되면 도막 미경화의 단점이 있을 수 있고, 3 중량% 초과로 포함되면 가공성 저하 등의 단점이 있을 수 있다.
The acid catalyst may be included in an amount of 0.1 to 3% by weight based on 100% by weight of the total polyester paint composition for PCM. If the acid catalyst is included in less than 0.1% by weight, there may be a disadvantage in that the coating film is not cured, and if it is included in more than 3% by weight, there may be disadvantages such as deterioration in processability.
본 발명의 일 실시형태에서, 상기 소광제는 도막의 광택을 낮춰주는 역할을 하며, 피씨엠용 폴리에스테르 도료 조성물에 통상적으로 사용되는 것을 제한 없이 사용할 수 있다. 구체적으로, 상기 소광제로는 합성 실리카 등을 사용할 수 있다.In one embodiment of the present invention, the matting agent serves to lower the gloss of the coating film, and any commonly used polyester paint composition for PCM can be used without limitation. Specifically, synthetic silica, etc. may be used as the matting agent.
상기 소광제는 피씨엠용 폴리에스테르 도료 조성물 전체 100 중량%에 대하여 1 내지 5 중량%의 양으로 포함될 수 있다. 상기 소광제가 1 중량% 미만으로 포함되면 도막의 광택을 낮춰주는 효과가 미미할 수 있고, 5 중량% 초과로 포함되면 내오염성이 저하될 수 있다.
The matting agent may be included in an amount of 1 to 5% by weight based on 100% by weight of the total polyester paint composition for PCM. If the matting agent is included in less than 1% by weight, the effect of lowering the gloss of the coating film may be minimal, and if it is included in more than 5% by weight, stain resistance may be reduced.
본 발명의 일 실시형태에서, 상기 용제로는 폴리에스테르 수지를 용해시킬 수 있는 다양한 유기용제를 사용할 수 있으며, 예를 들어, 코코솔 #100(Kocosol #100, K-100, SK에너지주식회사), 코코솔 #150(Kocosol #150, K-150, SK에너지주식회사), 시클로헥사논, 크실렌, 셀로솔브 아세테이트, 톨루엔, 메틸에틸케톤, 디베이직에스테르, 또는 이들의 혼합용제 등을 사용할 수 있다.In one embodiment of the present invention, various organic solvents capable of dissolving polyester resin can be used as the solvent, for example, Cocosol #100 (Kocosol #100, K-100, SK Energy Co., Ltd.), Cocosol #150 (Kocosol #150, K-150, SK Energy Co., Ltd.), cyclohexanone, xylene, cellosolve acetate, toluene, methyl ethyl ketone, dibasic ester, or a mixed solvent thereof can be used.
상기 용제는 피씨엠용 폴리에스테르 도료 조성물 전체 100 중량%에 대하여 3 내지 20 중량%의 양으로 포함될 수 있다. 상기 용제가 3 중량% 미만으로 포함되면 도막의 부착성이 저하될 수 있고, 20 중량% 초과로 포함되면 건조가 오래 걸릴 수 있다.
The solvent may be included in an amount of 3 to 20% by weight based on 100% by weight of the total polyester paint composition for PCM. If the solvent is included in less than 3% by weight, the adhesion of the coating film may decrease, and if it is included in more than 20% by weight, drying may take a long time.
본 발명의 일 실시형태에 따른 피씨엠용 폴리에스테르 도료 조성물은 필요에 따라 침강방지제, 광안정제, 경화보조제 등의 다양한 첨가제를 추가로 포함할 수 있다.The polyester paint composition for PCM according to an embodiment of the present invention may further include various additives such as anti-settling agents, light stabilizers, and curing aids, as needed.
본 발명의 일 실시형태에서, 상기 침강방지제는 도료 저장 안정성을 보완하고 작업성 및 도막 물성을 향상시키는 성분이다. 상기 침강방지제로는 피씨엠용 폴리에스테르 도료 조성물에 일반적으로 사용되는 것을 제한 없이 사용할 수 있다. 구체적으로, 상기 침강방지제로는 실리카, 클레이 등을 사용할 수 있다. 상기 침강방지제는 도막의 물성 조절을 위해 단독 또는 혼합하여 사용할 수 있다.In one embodiment of the present invention, the anti-settling agent is a component that complements the storage stability of the paint and improves workability and film properties. As the anti-settling agent, those commonly used in polyester paint compositions for PCM can be used without limitation. Specifically, silica, clay, etc. may be used as the anti-settling agent. The anti-settling agent can be used alone or in combination to control the physical properties of the coating film.
상기 광안정제로는 통상의 광안정제를 사용할 수 있으며, 예를 들어 비스(1-옥틸옥시-2,2,6,6-테트라메틸-4-피페리딜) 세바케이트 등을 사용할 수 있다.The light stabilizer may be a conventional light stabilizer, for example, bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate.
상기 경화보조제는 도막 표면의 경화를 촉진하기 위해 사용될 수 있으며, 예를 들어 트리에틸아민 등을 사용할 수 있다.
The curing aid may be used to promote curing of the surface of the coating film, for example, triethylamine, etc. may be used.
본 발명의 일 실시형태는 상기 피씨엠용 폴리에스테르 도료 조성물을 이용하여 형성된 도막에 관한 것이다.One embodiment of the present invention relates to a coating film formed using the polyester coating composition for PCM.
본 발명에 따른 피씨엠용 폴리에스테르 도료 조성물은 금속판에 바도장, 커튼도장, 롤도장, 침지도장 및 스프레이 도장 등의 방법으로 도장하고 건조시켜 도막을 형성할 수 있다.The polyester paint composition for PCM according to the present invention can be applied to a metal plate using methods such as bar coating, curtain coating, roll coating, dip coating, and spray coating, and then dried to form a coating film.
이때 도막 두께는 5 내지 25 ㎛일 수 있으며, 소부는 예를 들어 250 내지 280℃의 조건에서 35 내지 40 초 동안 수행할 수 있다.At this time, the coating film thickness may be 5 to 25 ㎛, and baking may be performed for 35 to 40 seconds under conditions of, for example, 250 to 280°C.
상기 금속판으로는 냉간압연강철(CR), 아연 핫디핑 강철(GI), 일렉트로-아연강철(EGI), 합금-플레이트강철(GA), 구리시트 또는 주석-플레이트 강철 등이 사용될 수 있다.The metal plate may be cold-rolled steel (CR), zinc hot-dipped steel (GI), electro-galvanized steel (EGI), alloy-plate steel (GA), copper sheet, or tin-plate steel.
또한, 상기 금속판은 도장 전에 포스페이트 또는 크로메이트 등으로 전처리될 수 있다. 또한, 도막의 밀착을 위하여, 하도로서 에폭시 형태 프라이머, 폴리에스테르 형태 프라이머, 아크릴릭 형태 프라이머 또는 이를 변성한 형태의 프라이머 등을 사용할 수 있다.
Additionally, the metal plate may be pretreated with phosphate or chromate before painting. Additionally, for adhesion of the coating film, an epoxy type primer, a polyester type primer, an acrylic type primer, or a modified version thereof may be used as an undercoat.
또한, 본 발명의 일 실시형태는 상기 피씨엠용 폴리에스테르 도료 조성물을 이용하여 형성된 도막으로 코팅된 피씨엠 강판에 관한 것이다.
Additionally, one embodiment of the present invention relates to a PCM steel sheet coated with a coating film formed using the polyester paint composition for PCM.
이하, 실시예, 비교예 및 실험예에 의해 본 발명을 보다 구체적으로 설명하고자 한다. 이들 실시예, 비교예 및 실험예는 오직 본 발명을 설명하기 위한 것으로, 본 발명의 범위가 이들에 국한되지 않는다는 것은 당업자에게 있어서 자명하다.
Hereinafter, the present invention will be described in more detail through examples, comparative examples, and experimental examples. These examples, comparative examples, and experimental examples are only for illustrating the present invention, and it is obvious to those skilled in the art that the scope of the present invention is not limited thereto.
실시예Example 1 내지 5 및 1 to 5 and 비교예Comparative example 1 내지 2: 1 to 2: 피씨엠용For PCM 폴리에스테르 도료 조성물의 제조 Preparation of polyester paint composition
하기 표 1의 조성으로 피씨엠용 폴리에스테르 도료 조성물을 제조하였다(단위: 중량부).
A polyester paint composition for PCM was prepared with the composition shown in Table 1 below (unit: parts by weight).
1) 폴리에스테르 수지 (KCC 사), NV:70%, Mn:2,000, 유리전이온도:24℃, 수산기 값:701) Polyester resin (KCC), NV: 70%, Mn: 2,000, glass transition temperature: 24℃, hydroxyl value: 70
2) 폴리에스테르 수지 (KCC 사) NV:68%, Mn:2,200, 유리전이온도:30℃, 수산기 값:752) Polyester resin (KCC) NV: 68%, Mn: 2,200, glass transition temperature: 30℃, hydroxyl value: 75
3) 폴리에스테르 수지 (KCC 사), NV:65%, Mn:6,500, 유리전이온도:15℃, 수산기 값:353) Polyester resin (KCC), NV: 65%, Mn: 6,500, glass transition temperature: 15℃, hydroxyl value: 35
4) 폴리에스테르 수지 (KCC 사) NV:63%, Mn:1,600, 유리전이온도:18℃, 수산기 값:804) Polyester resin (KCC) NV: 63%, Mn: 1,600, glass transition temperature: 18℃, hydroxyl value: 80
5) 메톡시 멜라민 수지 (CHANG CHUN PLASTIC CO., LTD.사), 분자량:1000 이하, NV:98 %5) Methoxy melamine resin (CHANG CHUN PLASTIC CO., LTD.), molecular weight: 1000 or less, NV: 98%
6) 흄드 실리카 용액 (GRACE사)6) Fumed silica solution (GRACE)
7) 트리에틸아민 용액 (TAMINCO N.V사)7) Triethylamine solution (TAMINCO N.V.)
8) 비스(1-옥틸옥시-2,2,6-테트라메틸-4-피페리딜)세바케이트 (BASF사) 8) Bis(1-octyloxy-2,2,6-tetramethyl-4-piperidyl)sebacate (BASF)
9) 검정색 조색제 (KCC 사, 안료 함량 35 중량%)9) Black coloring agent (KCC company, pigment content 35% by weight)
10) 노란색 조색제 (KCC 사, 안료 함량 54 중량%)10) Yellow coloring agent (KCC company, pigment content 54% by weight)
11) 백색 조색제 (KCC 사, 안료 함량 65 중량%)11) White colorant (KCC company, pigment content 65% by weight)
12) 적색 조색제 (KCC 사, 안료 함량 54 중량%)12) Red coloring agent (KCC company, pigment content 54% by weight)
13) 합성 실리카 (에스켐텍 사)13) Synthetic silica (Schemtech)
14) p-TSA (KING INDUSTRIES사)14) p-TSA (KING INDUSTRIES)
15) 에폭시 차폐된 DNNSA (FTC KOREA사)15) Epoxy shielded DNNSA (FTC KOREA)
16) DDBSA (청우사)
16) DDBSA (Cheongwoosa Temple)
실험예Experiment example : 도막 물성 평가: Evaluation of coating film properties
상기 실시예 및 비교예에서 제조한 도료 조성물을 강판에 바(bar) 도장한 후, 280℃의 온도에서 30초 동안 소부하여 20 ㎛의 두께의 도막이 코팅된 강판을 제조하였다.The coating composition prepared in the above examples and comparative examples was applied to a steel sheet as a bar, and then baked at a temperature of 280°C for 30 seconds to prepare a steel sheet coated with a 20 ㎛ thick coating film.
상기 도막의 물성을 각각 W-O-M ASTM D7869-13, W-O-M ASTM D6695-08 및 QUV-A EN 13523-10 평가법으로 평가한 후, 그 결과를 하기 표 2에 나타내었다. 평가항목은 광택유지율, 색차 및 쵸킹(chalking)이었다.
The physical properties of the coating film were evaluated using WOM ASTM D7869-13, WOM ASTM D6695-08, and QUV-A EN 13523-10 evaluation methods, respectively, and the results are shown in Table 2 below. The evaluation items were gloss retention, color difference, and chalking.
상기 표 2의 결과로부터 볼 수 있듯이, 실시예 1 내지 5의 폴리에스테르 수지를 포함하는 피씨엠용 폴리에스테르 도료 조성물로부터 형성되는 도막은, 수평균 분자량, 수산기 값 및 유리전이온도가 상기 범위를 벗어난 비교예 1 내지 2의 피씨엠용 폴리에스테르 도료 조성물로부터 형성되는 도막에 비해 자외선이 강하고 고온다습한 환경에 장기간 노출되어도 더욱 우수한 광택유지율, 색상유지율 및 쵸킹 저항성을 나타낼 수 있음을 알 수 있었다.
As can be seen from the results in Table 2, the coating film formed from the polyester paint composition for PCM containing the polyester resin of Examples 1 to 5 has a number average molecular weight, hydroxyl value, and glass transition temperature outside the above range. It was found that compared to the coating film formed from the polyester paint composition for PCM of Examples 1 and 2, it can exhibit better gloss retention, color retention, and chalking resistance even when exposed to strong ultraviolet rays and a high temperature and high humidity environment for a long period of time.
이상으로 본 발명의 특정한 부분을 상세히 기술하였는 바, 본 발명이 속한 기술분야에서 통상의 지식을 가진 자에게 있어서 이러한 구체적인 기술은 단지 바람직한 구현예일 뿐이며, 이에 본 발명의 범위가 제한되는 것이 아님은 명백하다. 본 발명이 속한 기술분야에서 통상의 지식을 가진 자라면 상기 내용을 바탕으로 본 발명의 범주 내에서 다양한 응용 및 변형을 행하는 것이 가능할 것이다.As the specific parts of the present invention have been described in detail above, it is clear to those skilled in the art that these specific techniques are merely preferred embodiments and do not limit the scope of the present invention. do. Anyone skilled in the art to which the present invention pertains will be able to make various applications and modifications within the scope of the present invention based on the above contents.
따라서, 본 발명의 실질적인 범위는 첨부된 특허청구범위와 그의 등가물에 의하여 정의된다고 할 것이다.Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.
Claims (4)
조색제 40 내지 50 중량%;
경화제 5 내지 10 중량%;
산촉매 0.1 내지 3 중량%;
소광제 1 내지 5 중량%; 및
용제 3 내지 20 중량%를 포함하는 피씨엠용 폴리에스테르 도료 조성물.30 to 40% by weight of a polyester resin having a number average molecular weight of 2,000 to 2,200 g/mol, a hydroxyl value of 70 to 75 mgKOH/g, and a glass transition temperature of 24 to 30°C;
40 to 50% by weight of coloring agent;
5 to 10% by weight of hardener;
0.1 to 3% by weight of acid catalyst;
1 to 5% by weight of matting agent; and
A polyester paint composition for PCM containing 3 to 20% by weight of a solvent.
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JP2012517499A (en) | 2009-02-06 | 2012-08-02 | イーストマン ケミカル カンパニー | Coating composition containing tetramethylcyclobutanediol |
KR101432175B1 (en) * | 2013-06-27 | 2014-08-20 | 포스코강판 주식회사 | Coating Composition for Manufacturing PCM Color Steel Sheet and Stone-mat Type PCM Color Steel Sheet Using the Same |
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JP2012517499A (en) | 2009-02-06 | 2012-08-02 | イーストマン ケミカル カンパニー | Coating composition containing tetramethylcyclobutanediol |
KR101432175B1 (en) * | 2013-06-27 | 2014-08-20 | 포스코강판 주식회사 | Coating Composition for Manufacturing PCM Color Steel Sheet and Stone-mat Type PCM Color Steel Sheet Using the Same |
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