KR20230010359A - Metallic powder coating composition for strengthening alkali resistance - Google Patents
Metallic powder coating composition for strengthening alkali resistance Download PDFInfo
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- KR20230010359A KR20230010359A KR1020210090810A KR20210090810A KR20230010359A KR 20230010359 A KR20230010359 A KR 20230010359A KR 1020210090810 A KR1020210090810 A KR 1020210090810A KR 20210090810 A KR20210090810 A KR 20210090810A KR 20230010359 A KR20230010359 A KR 20230010359A
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- 239000000843 powder Substances 0.000 title claims abstract description 52
- 239000008199 coating composition Substances 0.000 title claims description 28
- 239000003513 alkali Substances 0.000 title abstract description 25
- 238000005728 strengthening Methods 0.000 title description 2
- 239000000049 pigment Substances 0.000 claims abstract description 80
- 239000003822 epoxy resin Substances 0.000 claims abstract description 34
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 34
- 239000004645 polyester resin Substances 0.000 claims abstract description 30
- 229920001225 polyester resin Polymers 0.000 claims abstract description 30
- 239000002562 thickening agent Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 239000004606 Fillers/Extenders Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 9
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims description 38
- 239000011248 coating agent Substances 0.000 claims description 33
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 238000004381 surface treatment Methods 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- -1 acryl Chemical group 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 16
- 238000012360 testing method Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- SXAMGRAIZSSWIH-UHFFFAOYSA-N 2-[3-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,2,4-oxadiazol-5-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NOC(=N1)CC(=O)N1CC2=C(CC1)NN=N2 SXAMGRAIZSSWIH-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 235000016639 Syzygium aromaticum Nutrition 0.000 description 1
- 244000223014 Syzygium aromaticum Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
Description
본 발명은 기존 메타릭 분체도료 대비 내알칼리성이 우수한, 내알칼리 강화용 메타릭 분체도료 조성물에 관한 것이다.The present invention relates to a metallic powder coating composition for enhancing alkali resistance, which has excellent alkali resistance compared to existing metallic powder coatings.
보다 상세히 설명하면 본 발명은, 기존 에어컨&공청기 그릴망에 적용되고 있는 액상도료를 분체도료로 적용하기 위해, 화학적 물성이 우수한 폴리에스테르 수지, 에폭시 수지, 첨가제, 체질안료, 유색안료 등으로 이뤄진 전분산물을 용융분산 시킨 후, 냉각, 분쇄 및 분급 공정을 거친 분체도료에 내알칼리성이 우수한 메타릭 안료 및 펄 안료를 첨가 후 브랜딩 또는 본딩 공정을 거쳐 제조되는 에폭시-폴리에스테르 타입의 메타릭 분체도료 조성물에 관한 것이다.In more detail, the present invention is composed of polyester resin, epoxy resin, additives, extender pigments, colored pigments, etc. with excellent chemical properties in order to apply liquid paint applied to existing air conditioner & air conditioner grill nets as powder paint. Epoxy-polyester type metallic powder coating produced by melting and dispersing the former dispersion, adding metallic pigments and pearl pigments with excellent alkali resistance to powder coatings that have undergone cooling, grinding, and classification processes, and then going through a branding or bonding process. It's about the composition.
본 발명에 의하여 얻어지는 분체도료 조성물은 기존 메타릭 분체도료보다 내알칼리성이 우수하며, 그릴망에 도장 후 경화시 흐름성에 의한 홀막힘 없이 미려한 외관을 얻을 수 있다.The powder coating composition obtained according to the present invention has better alkali resistance than conventional metallic powder coatings, and can obtain a beautiful appearance without clogging due to flowability during curing after coating on a grill net.
일반적으로 사용되는, 카르복실기를 함유한 폴리에스테르 수지는 글리시딜기를 함유한 에폭시 수지와 함께 가교 결합을 함으로써 견고한 도막을 얻는다.A commonly used polyester resin containing a carboxyl group is cross-linked with an epoxy resin containing a glycidyl group to obtain a durable coating film.
즉, 글리시딜기를 함유한 에폭시 수지는 말단에 카르복실기를 갖는 폴리에스테르 수지의 경화제로 사용되며, 국내에서는 하이브리드 타입의 분제도료 조성물로 널리 사용되고 있다.That is, an epoxy resin containing a glycidyl group is used as a curing agent for a polyester resin having a carboxyl group at the terminal, and is widely used as a hybrid type powder paint composition in Korea.
상기와 같이 폴리에스테르 수지와 경화제인 에폭시 수지에 안료, 체질, 각종 첨가제 및 안료를 용융 혼합한 펠릿(pellet)을 분쇄하여 평균입도가 36 내지 40마이크론인 분말에 메타릭 안료, 펄 안료를 혼합하여 브랜딩 및 본딩 공정을 거친 도료를 정전 스프레이 도장 후 고온 건조 처리를 거치게 되면, 입자 체내의 수지가 용융되고 나아가서 연속적인 도포막이 형성되는바, 이것이 일반적인 하이브리드 타입의 메타릭 분체도료의 도막형성 방법이다.As described above, a pellet obtained by melting and mixing a polyester resin and an epoxy resin as a curing agent with a pigment, a sieving agent, and various additives and pigments is pulverized, and a metallic pigment and a pearl pigment are mixed with a powder having an average particle size of 36 to 40 microns. When the paint that has gone through the branding and bonding process is electrostatically sprayed and then subjected to high-temperature drying treatment, the resin inside the particles melts and a continuous coating film is formed. This is a general hybrid type metallic powder coating film formation method.
그러나 이러한 종래의 메타릭 분체도료 조성물의 경우 내알칼리성(5% NaOH, 48hr, 침적) 시험 결과 메타릭 안료의 산화현상에 의한 변색우려가 있어 상도 투명 도장을 실시하거나, 메타릭 안료 대신 펄 안료로 대체하여 진행하고 있으나, 이는 기존 액상도료 대비 휘도가 부족하여 거래처에서 꾸준히 개선을 요청해왔다.However, in the case of such a conventional metallic powder coating composition, as a result of the alkali resistance (5% NaOH, 48 hr, immersion) test, there is a concern about discoloration due to oxidation of the metallic pigment, so that the top coat is transparently coated, or the pearl pigment is used instead of the metallic pigment However, since the luminance is insufficient compared to the existing liquid paint, customers have been constantly requesting improvement.
따라서 본 발명은 상기와 같은 종래의 메타릭 분체도료 조성물에서 내알칼리성을 개선하여 보다 고휘도의 분체도료 조성물을 제조하기 위한 것으로, 이를 위해 내알칼리성이 우수한 폴리에스테르 수지와 에폭시 수지를 사용하고, 그릴망 적용에 있어 홀막힘 방지를 위해 점도를 조절하기 위해서 증점제를 첨가, 내알칼리성이 강화된 메타릭 안료 및 펄 안료를 적정한 비율로 첨가함으로써 기존보다 내알칼리성도 우수하며, 고 휘도의 새로운 메타릭 분체도료 조성물을 제공하고자 하였다.Therefore, the present invention is to improve the alkali resistance of the conventional metallic powder coating composition as described above to prepare a powder coating composition of higher brightness. For this purpose, a polyester resin and an epoxy resin having excellent alkali resistance are used, and a grill net A new metallic powder coating with excellent alkali resistance and high brightness by adding a thickener to control viscosity to prevent hole clogging in application, and adding metallic pigments and pearl pigments with enhanced alkali resistance in an appropriate ratio. It was intended to provide a composition.
상기한 목적을 달성하기 위한 본 발명의 분체도료 조성물은,The powder coating composition of the present invention for achieving the above object,
말단기에 카르복실기를 갖는 폴리에스테르 수지 25~35 중량%와 말단기에 비스페놀A의 글리시딜기 에테르를 갖는 에폭시 수지 20~30 중량%,25 to 35% by weight of a polyester resin having a carboxyl group at the terminal group and 20 to 30% by weight of an epoxy resin having a glycidyl ether of bisphenol A at the terminal group,
첨가제로서 왁스 0.1~1.0 중량%, 증점제 0.01~0.05 중량%, 체질안료 5~10 중량%, 유색안료 30~40 중량%, 유동제 0.1~1.0 중량%, 메타릭 안료 1.0~3.0 중량%, 펄 안료 1.0~3.0 중량%를 포함하여 구성되는 것을 특징으로 한다.As additives, wax 0.1-1.0% by weight, thickener 0.01-0.05% by weight, extender pigment 5-10% by weight, colored pigment 30-40% by weight, flow agent 0.1-1.0% by weight, metallic pigment 1.0-3.0% by weight, pearl It is characterized in that it is composed of 1.0 to 3.0% by weight of the pigment.
이때 상기 폴리에스테르 수지는 산가 30~70 mg KOH/g 이고, 상시 에폭시 수지는 당량 700~1,200 g/eq 인 것을 특징으로 한다.In this case, the polyester resin has an acid value of 30 to 70 mg KOH/g, and the epoxy resin has an equivalent weight of 700 to 1,200 g/eq.
또한 상기 메타릭 안료는 표면처리공정(코팅공정)이 스테아르산, 실리카, 아크릴, 실리카-아크릴, 실리카-폴리머 중의 하나로 이루어지는 것을 특징으로 한다.In addition, the metallic pigment is characterized in that the surface treatment process (coating process) consists of one of stearic acid, silica, acryl, silica-acrylic, and silica-polymer.
더 바람직하게는, 상기 메타릭 안료는 표면처리공정(코팅공정)이 실리카-아크릴 또는 실리카-폴리머와 같은 이중코팅제로 이루어지며, 표면처리공정 후의 메타릭 안료의 입자 사이즈는 30~40마이크론인 것을 특징으로 한다.More preferably, the surface treatment process (coating process) of the metallic pigment is made of a double coating agent such as silica-acrylic or silica-polymer, and the particle size of the metallic pigment after the surface treatment process is 30 to 40 microns. to be characterized
본 발명의 분체도료 조성물은 또한,The powder coating composition of the present invention also,
상기 증점제는 폴리테프론, 탈크 중의 적어도 하나이며,The thickener is at least one of polyteflon and talc,
상기 체질안료는 바륨설페이트, 탄산칼슘, 실리카, 수산화마그네슘, 수산화알루미나, 티타늄디옥사이드, 크레이, 알루미나, 운모, 월라스토나이트 중의 적어도 하나인 것을 특징으로 한다.The extender pigment is characterized in that at least one of barium sulfate, calcium carbonate, silica, magnesium hydroxide, alumina hydroxide, titanium dioxide, clay, alumina, mica, and wollastonite.
본 발명의 상기 구성을 좀 더 자세히 설명하면 다음과 같다.The above configuration of the present invention will be described in more detail as follows.
본 발명에 따른 열경화성 분체도료 조성물은 폴리에스테르 수지의 카르복실기와 에폭시 수지에 함유된 비스페놀A의 글리시딜기 에테르에 의하여 경화된다.The thermosetting powder coating composition according to the present invention is cured by the glycidyl ether of bisphenol A contained in the carboxyl group of the polyester resin and the epoxy resin.
이때 폴리에스테르 수지의 산가와 에폭시 수지 당량의 계산식으로 수지 결합이 이루어지면서 첨가제와 체질의 중량부에 따라 분체도료가 형성되는 것이다.At this time, the resin bond is formed by the calculation formula of the acid value of the polyester resin and the equivalent weight of the epoxy resin, and the powder coating is formed according to the weight part of the additive and the sieving material.
본 발명의 분체도료 조성물을 설명하면, 말단기에 카르복실기를 갖는 폴리에스테르 수지 25~35 중량%와 말단기에 비스페놀A의 글리시딜기 에테르를 갖는 에폭시 수지 20~30 중량%에다가, 첨가제로서 왁스 0.1~1.0 중량%, 증점제 0.01~0.05 중량%, 체질안료 5~10 중량%, 유색안료 30~40 중량%를 배합 후 믹서를 이용하여 균일하게 혼합될 수 있도록 섞는다.Describing the powder coating composition of the present invention, 25 to 35% by weight of a polyester resin having a carboxyl group at the terminal group and 20 to 30% by weight of an epoxy resin having a glycidyl ether of bisphenol A at the terminal group, plus 0.1% by weight of wax as an additive. ~1.0% by weight, 0.01-0.05% by weight of thickener, 5 to 10% by weight of extender pigment, and 30 to 40% by weight of colored pigment are mixed and then mixed using a mixer so that they can be mixed evenly.
이와 같이 균일하게 혼합된 조성물을 니이더 또는 익스트루더 등의 압출기를 통하여 90~130℃의 고온에서 용융 혼합 시킨 다음, 유동제 0.1~1.0 중량%를 첨가한 뒤 분쇄기를 이용하여 평균입도 36~40마이크론인 분체도료의 조성물을 제조한다. 제조된 분체도료 조성물에 메타릭 안료 1.0~3.0 중량%, 펄 안료 1.0~3.0 중량%를 첨가한 뒤 블랜더기 또는 본딩기를 통하여 베이스 분체도료와 메타릭 안료, 펄 안료를 균일하게 혼합되도록 제조한다.The uniformly mixed composition is melted and mixed at a high temperature of 90 to 130 ° C through an extruder such as a kneader or an extruder, and then 0.1 to 1.0% by weight of a flow agent is added, and then the average particle size is 36 to 36 A composition of 40 micron powder coating is prepared. After adding 1.0 to 3.0% by weight of the metallic pigment and 1.0 to 3.0% by weight of the pearl pigment to the prepared powder coating composition, the base powder coating, the metallic pigment, and the pearl pigment are uniformly mixed through a blender or a bonding machine.
제조된 메타릭 분체도료 조성물은 정전 스프레이 도장방법에 의하여 도포하는바, 도막이 40~90 마이크론 두께가 되도록 도포 후 160~200℃의 온도에서 10~20분 건조 경화시키게 되면 내알칼리 강화용 메타릭 분체도료 도막이 얻어지게 되는 것이다.The prepared metallic powder coating composition is applied by the electrostatic spray coating method. After applying the coating film to a thickness of 40 to 90 microns, and drying and curing at a temperature of 160 to 200 ° C for 10 to 20 minutes, it is a metallic powder for strengthening alkali resistance. A paint film is obtained.
종래의 메타릭 분체도료는 내알칼리성이 취약하여 소비자의 요구에 최대한 맞춰 펄 안료를 적용한 분체도료 및 상도 투명 도장을 요구하는 메타릭 분체도료 제품을 공급하여 왔으나, 이와는 달리 본 발명 분체도료 조성물은 내알칼리성이 강화된 메타릭 분체도료 조성물로서 기존 제품보다 내알칼리성에 우수한 분체도료 도막 조성물을 얻을 수 있는 것이다.Conventional metallic powder coatings have poor alkali resistance, so they have been supplying powder coatings with pearl pigments and metallic powder coating products that require top coat transparent coating to meet the needs of consumers as much as possible, but unlike this, the powder coating composition of the present invention As a metallic powder coating composition with enhanced alkalinity, it is possible to obtain a powder coating film composition that is superior in alkali resistance to existing products.
본 발명에서는 카르복실기를 함유한 폴리에스테르 수지가 주 수지로 사용되며 비스페놀A의 글리시딜기 에테르를 함유한 에폭시 수지를 경화제로 사용한다. In the present invention, a polyester resin containing a carboxyl group is used as a main resin, and an epoxy resin containing a glycidyl ether of bisphenol A is used as a curing agent.
본 발명에 따르면 폴리에스테르 수지와 에폭시 수지의 반응으로 인한 기계적, 화학적 물성이 폴리에스테르 수지와 TGI 혹은 폴리에스테르 수지와 HAA 와의 반응으로 인한 기계적, 화학적 물성보다 우수한 것으로 밝혀졌던바, 폴리에스테르 수지는 산가 30~70 mg KOH/g 이고, 상시 에폭시 수지는 당량 700~1,200 g/eq 인 것을 사용하여야 한다. 당량 700~1,200 g/eq 이내의 에폭시 수지를 사용하여야만 화학적 물성이 우수한 분체도료 조성물을 얻을 수 있다.According to the present invention, it has been found that the mechanical and chemical properties due to the reaction between the polyester resin and the epoxy resin are superior to the mechanical and chemical properties due to the reaction between the polyester resin and TGI or the polyester resin and HAA, and the polyester resin has an acid value It is 30~70 mg KOH/g, and the epoxy resin must always have an equivalent weight of 700~1,200 g/eq. A powder coating composition with excellent chemical properties can be obtained only when an epoxy resin having an equivalent weight of 700 to 1,200 g/eq is used.
또, 그릴망에 적용되는 메타릭 분체도료는 증점제의 함량이 0.01~0.05 중량%일 때 도막의 외관이 가장 미려하다. 증점제의 함량이 0.01 중량% 미만이면 도막이 형성되면서 도료가 흘러 홀막힘이 생기며, 증점제의 함량이 0.05 중량%를 초과하면 도료의 흐름성이 짧아져 홀막힘은 생기지 않으나, 외관이 거칠어져 광택 및 휘도를 저하하게 된다.In addition, the metallic powder coating applied to the grill net has the most beautiful appearance of the coating when the content of the thickener is 0.01 to 0.05% by weight. If the content of the thickener is less than 0.01% by weight, a coating film is formed and the paint flows and clogging occurs. If the content of the thickener exceeds 0.05% by weight, the flowability of the paint is shortened and clogging does not occur, but the appearance is rough, resulting in poor gloss and brightness. will lower
메타릭 안료의 함량은 1.0~3.0 중량%일 때 작업성이 가장 안정적이다. 함량 1.0 중량% 이하일 경우 액상 도료 대비 휘도가 부족하며, 함량 3.0 중량%를 초과할 경우 도장 작업 시 메타릭 튐 현상이 발생 및 도막형성 시 도막 표면에 메타릭 안료가 붙어있지 않고 묻어나는 현상이 발생할 수 있다.Workability is most stable when the content of the metallic pigment is 1.0 to 3.0% by weight. If the content is less than 1.0% by weight, the brightness is insufficient compared to liquid paint, and if the content exceeds 3.0% by weight, metallic splashing occurs during painting and when forming a coating film, the metallic pigment is not attached to the surface of the coating film, and the phenomenon occurs. can
또 메타릭 안료의 표면 처리 공정은 스테아르산, 실리카, 아크릴, 실리카-아크릴, 실리카-폴리머로 이루어진 군에서 선택되는 것으로 이루어지는 것이 바람직하며, 특히 더 바람직하게는 실리카-아크릴, 실리카-폴리머와 같은 이중코팅제로서 입자 사이즈가 30~40마이크론으로 처리할 때 가장 우수한 분체도료 조성물을 얻을 수 있다.In addition, the surface treatment process of the metallic pigment is preferably made of a material selected from the group consisting of stearic acid, silica, acryl, silica-acrylic, and silica-polymer, and more preferably a double layer such as silica-acrylic and silica-polymer. As a coating agent, the best powder coating composition can be obtained when the particle size is 30 to 40 microns.
상술한 바와 같은 본 발명에 따르면, 고분자 말단에 카르복실기를 갖는 폴리에스테르 수지와 비스페놀A의 글리시딜 에테르를 가진 에폭시 수지에 증점제를 첨가하여 도료화하고 이중코팅제 등으로 표면 처리가 된 메타릭 안료를 브랜딩 혹은 본딩 공정을 거쳐 분체도료화 함으로써, 도료 경화시 그릴망 도장 시 홀막힘이 없으며, 내알칼리성이 우수한 고휘도 메타릭 분체도료 조성물을 얻을 수 있다.According to the present invention as described above, a polyester resin having a carboxyl group at the end of a polymer and an epoxy resin having a glycidyl ether of bisphenol A are added to a thickener to make a paint and a metallic pigment surface-treated with a double coating agent, etc. By converting the powder coating through a branding or bonding process, a high-brightness metallic powder coating composition having excellent alkali resistance and no hole clogging during coating of the grill net during curing of the coating can be obtained.
이하, 본 발명을 실시예에 의거 상세히 설명한다. 다만 실시예는 본 발명의 이해를 돕기 위한 것으로 본 발명의 범위가 그에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail based on examples. However, the examples are provided to aid understanding of the present invention, and the scope of the present invention is not limited thereto.
이하, 하기 표 1의 ①~⑥과 같은 원료를 정향 계량 후 믹서를 이용하여 균일하게 혼합한다.Hereinafter, raw materials such as ① to ⑥ in Table 1 are uniformly mixed using a mixer after measuring cloves.
잘 혼합된 원료를 니이더 또는 익스트루더를 이용하여 고온(80~120℃)에서 용융 혼합하여 펠렛으로 제조하고, 제조된 펠렛을 분쇄기를 이용하여 평균입도가 36~40 마이크론이 되는 분체도료 조성물을 제조하면서 ⑦의 첨가제(유동제)를 투입하여 제조한다. A powder coating composition having an average particle size of 36 to 40 microns by melting and mixing the well-mixed raw materials at a high temperature (80 to 120 ° C) using a kneader or an extruder to prepare pellets, and using a grinder to manufacture the pellets. It is prepared by adding the additive (flow agent) of ⑦ while preparing.
제조된 분체도료 조성물에 ⑧~⑪의 메타릭 안료를 투입, 브랜딩하여 만든 메타릭 분체도료 조성물을 정전 스프레이 도장으로 건조도막 두께 기준으로 50~80 마이크론이 되도록 피도물(철판, 알루미늄판, 용융아연도금강판, 전기아연도금강판, 스테인레스판)에 도장한다.The metallic powder coating composition made by injecting and branding the metallic pigments of ⑧ to ⑪ into the prepared powder coating composition is electrostatically sprayed so that the coated material (steel plate, aluminum plate, hot-dip galvanizing) is 50 to 80 microns based on the dry film thickness. Steel plate, electro-galvanized steel plate, stainless plate).
도장된 피도물을 일정한 온도가 유지되는 열풍건조로에서 온도를 170~200℃에서 10~20분간 유지시켜 메타릭 분체도료 조성물을 제조하였다.A metallic powder coating composition was prepared by maintaining the temperature of the coated object at 170 ~ 200 ℃ for 10 ~ 20 minutes in a hot air drying furnace where a constant temperature is maintained.
하기 표 1의 실험은 에폭시 수지 및 메타릭 안료 종류에 따른 내알칼리성 검토를 위한 실험 자료이다.The experiments in Table 1 below are experimental data for examining alkali resistance according to the types of epoxy resins and metallic pigments.
① 폴리에스테르 수지 : MS CHEM 社, 산가 30~70 mg KOH/g ① Polyester resin: MS CHEM, acid value 30~70 mg KOH/g
② 에폭시 수지 : 금호피앤비화학 社, 당량 700~1,200 g/eq ② Epoxy resin: Kumho P&B Chemicals, equivalent 700~1,200 g/eq
③ 에폭시 수지 : 금호피앤비화학 社, 당량 600~900 g/eq ③ Epoxy resin: Kumho P&B Chemicals, equivalent weight 600~900 g/eq
④ 왁스 : Clariant 社, polyethylene wax ④ Wax: Clariant, polyethylene wax
⑤ 체질안료 : TIPTOP CHEM 社, 황산바륨 ⑤ Extender pigment: TIPTOP CHEM, barium sulfate
⑥ 유색안료 : TiO2(DUPONT 社), 카본블랙(MITSUBISHI 社), ⑥ Color pigments: TiO2 (DUPONT), carbon black (MITSUBISHI),
산화철적(WooShin Pigment 社), 산화철황(Lanxess 社) Iron oxide (WooShin Pigment), iron oxide (Lanxess)
⑦ 유동제 : Wacker Chemicals 社, 실리카 ⑦ Flow agent: Wacker Chemicals, silica
⑧ 메타릭 안료 : Schlenk 社, 표면 처리 : 실리카-폴리머, 입자 사이즈 : 30~40 마이크론 ⑧ Metallic pigment: Schlenk, surface treatment: silica-polymer, particle size: 30-40 microns
⑨ 메타릭 안료 : Schlenk 社, 표면 처리 : 실리카-폴리머, 입자 사이즈 : 10~15 마이크론 ⑨ Metallic pigment: Schlenk, surface treatment: silica-polymer, particle size: 10-15 microns
⑩ 메타릭 안료 : Eckart 社, 표면 처리 : 실리카-아크릴, 입자 사이즈 : 30~40 마이크론 ⑩ Metallic pigment: Eckart, surface treatment: silica-acrylic, particle size: 30-40 microns
⑪ 메타릭 안료 : Eckart 社, 표면 처리 : 실리카-아크릴, 입자 사이즈 : 10~15 마이크론 ⑪ Metallic pigment: Eckart, surface treatment: silica-acrylic, particle size: 10-15 microns
상기 표 1의 실시예 1~4 은 내알칼리 강화 메타릭 분체도료 조성물로 폴리에스테르 수지 25~35 중량%에 대하여 에폭시 수지 20~30 중량%, 왁스 0.1~1.0 중량%, 체질안료 5~10 중량%, 유색안료 30~40 중량%, 유동제 0.1~1.0 중량%, 메타릭 안료 1.0~3.0 중량% 로 구성되도록 제조하였다.Examples 1 to 4 in Table 1 are alkali-resistant reinforced metallic powder coating compositions, with 20 to 30 wt% of epoxy resin, 0.1 to 1.0 wt% of wax, and 5 to 10 wt% of extender pigment based on 25 to 35 wt% of polyester resin. %, 30 to 40% by weight of colored pigment, 0.1 to 1.0% by weight of flow agent, and 1.0 to 3.0% by weight of metallic pigment.
상기 표 1의 실시예 1~4, 비교예 1 에는 폴리에스테르 산가 30~70 mg KOH/g 인 폴리에스테르 수지를 사용하였다. 또한 실시예 1~4 에는 에폭시 당량 700~1,200 g/eq 인 에폭시 수지를 사용하고, 비교예 1 에는 에폭시 당량 600~900 g/eq 인 에폭시 수지를 사용하여, 에폭시 수지에 따라 내알칼리성에 미치는 영향을 실험하였다.In Examples 1 to 4 and Comparative Example 1 of Table 1, a polyester resin having a polyester acid value of 30 to 70 mg KOH/g was used. In Examples 1 to 4, an epoxy resin having an epoxy equivalent of 700 to 1,200 g/eq was used, and in Comparative Example 1, an epoxy resin having an epoxy equivalent of 600 to 900 g/eq was used. was experimented with.
실시예 1~4 간에는 메타릭 안료의 표면 처리 종류 및 입자 사이즈에 따라 내알칼리성에 미치는 영향을 실험하였다.In Examples 1 to 4, the effect on alkali resistance was tested according to the surface treatment type and particle size of the metallic pigment.
위에 적은 바와 같이, 상기 비교예 1은 일반적인 메타릭 분체도료 조성물로 폴리에스테르 산가 30~70 mg KOH/g 인 폴리에스테르 수지를 사용하였고, 경화제로는 에폭시 당량 600~900 g/eq 인 에폭시 수지를 사용하여 폴리에스테르 수지의 산가와 에폭시 수지의 당량비에 따른 폴리에스테르 수지 30~40 중량%, 에폭시 수지 20~30 중량%를 혼합하여 사용하였다.As described above, in Comparative Example 1, a polyester resin having a polyester acid value of 30 to 70 mg KOH/g was used as a general metallic powder coating composition, and an epoxy resin having an epoxy equivalent of 600 to 900 g/eq was used as a curing agent. 30 to 40% by weight of the polyester resin and 20 to 30% by weight of the epoxy resin were mixed and used according to the acid value of the polyester resin and the equivalent ratio of the epoxy resin.
또한 비교예 1에서 실리카-폴리머로 표면처리를 하였고 입자 사이즈가 30~40 마이크론인 메타릭 안료를 사용하여 실시예 1과의 사이에 에폭시 수지 차이가 내알칼리성에 미치는 영향을 실험하였다. In addition, in Comparative Example 1, the surface was treated with silica-polymer, and the effect of the difference between the epoxy resin and Example 1 on the alkali resistance was tested using a metallic pigment having a particle size of 30 to 40 microns.
상기 표 1 의 실시예 1~4 및 비교예 1 에서 제조한 메타릭 분체 도료의 도막 물성 시험 결과는 다음과 같다.The test results of the coating film properties of the metallic powder paints prepared in Examples 1 to 4 and Comparative Example 1 of Table 1 are as follows.
상기 표 3에 나타난 바와 같이, 경화 조건 180℃ x 10분(소지 표면 온도 기준)에서 실시예 1~4, 비교예 1의 경우 일반적인 기계 물성은 모두 만족하였으나, 내알칼리성에서 편차가 발생하였다. 메타릭 안료의 표면 처리 공정 중 실시예 3~4인 실리카-아크릴 보다는 실시예 1~2인 실리카-폴리머 처리 공정이 우수하였으며, 같은 실리카-폴리머 처리 공정에서도 입자 사이즈가 클수록 내알칼리성이 우수한 것을 알 수 있었다. 또, 같은 메타릭 안료를 적용한 실시예 1과 비교예 1에서 에폭시 당량의 차이에 의한 내알칼리성 비교 결과 에폭시 당량이 600~900 g/eq 보다는 700~1,200 g/eq 이 우수한 것을 알 수 있다.As shown in Table 3, in the case of Examples 1 to 4 and Comparative Example 1 under the curing condition of 180 ° C. x 10 minutes (base surface temperature), all general mechanical properties were satisfied, but deviations occurred in alkali resistance. Among the surface treatment processes of metallic pigments, the silica-polymer treatment process of Examples 1 and 2 was superior to the silica-acrylic treatment of Examples 3 and 4, and it was found that the larger the particle size, the better the alkali resistance in the same silica-polymer treatment process. could In addition, as a result of comparing the alkali resistance due to the difference in epoxy equivalent in Example 1 and Comparative Example 1 to which the same metallic pigment was applied, it can be seen that 700 to 1,200 g / eq is better than 600 to 900 g / eq in epoxy equivalent.
하기 표 4 의 실험은 그릴망 적용에 있어 흐름성 개선을 위한 증점제 함량별 실험 자료이다.The experiments in Table 4 below are experimental data for each thickener content to improve flowability in the application of a grill net.
① 폴리에스테르 수지 : MS CHEM 社, 산가 30~70 mg KOH/g ① Polyester resin: MS CHEM, acid value 30~70 mg KOH/g
② 에폭시 수지 : 금호피앤비화학 社, 당량 700~1,200 g/eq ② Epoxy resin: Kumho P&B Chemicals, equivalent 700~1,200 g/eq
③ 왁스 : Clariant 社, polyethylene wax ③ Wax: Clariant, polyethylene wax
④ 증점제 : KOCH 社 ④ Thickener: KOCH Company
⑤ 체질안료 : TIPTOP CHEM 社, 황산바륨 ⑤ Extender pigment: TIPTOP CHEM, barium sulfate
⑥ 유색안료 : TiO2(DUPONT 社), 카본블랙(MITSUBISHI 社), ⑥ Color pigments: TiO2 (DUPONT), carbon black (MITSUBISHI),
산화철적(WooShin Pigment 社), 산화철황(Lanxess 社) Iron oxide (WooShin Pigment), iron oxide (Lanxess)
⑦ 유동제 : Wacker Chemicals 社, 실리카 ⑦ Flow agent: Wacker Chemicals, silica
⑧ 메타릭 안료 : Schlenk 社, 표면처리 : 실리카-폴리머, 입자 사이즈 : 30~40 마이크론 ⑧ Metallic pigment: Schlenk, surface treatment: silica-polymer, particle size: 30-40 microns
⑨ 펄 안료 : CQV 社, 운모, 화이트, 실버-그레이, 레드, 골드 색상 등 ⑨ Pearl pigment: CQV, mica, white, silver-gray, red, gold color, etc.
상기 표 4 의 실시예 5~7 은 내알칼리 강화 메타릭 분체도료 조성물로 폴리에스테르 수지 25~35 중량%에 대하여 에폭시 수지 20~30 중량%, 왁스 0.1~1.0 중량%, 증점제 0.01~0.05 중량%, 체질안료 5~10 중량%, 유색안료 30~40 중량%, 유동제 0.1~1.0 중량%, 메타릭 안료 1.0~3.0 중량%, 펄 안료 1.0~3.0 중량% 로 구성되도록 제조하였다.Examples 5 to 7 of Table 4 are alkali-resistant reinforced metallic powder coating compositions, which contain 20 to 30 wt% of epoxy resin, 0.1 to 1.0 wt% of wax, and 0.01 to 0.05 wt% of thickener based on 25 to 35 wt% of polyester resin. , 5 to 10% by weight of extender pigment, 30 to 40% by weight of colored pigment, 0.1 to 1.0% by weight of flow agent, 1.0 to 3.0% by weight of metallic pigment, and 1.0 to 3.0% by weight of pearl pigment.
상기 표 4 의 실시예 5~7 에는 폴리에스테르 산가 30~70 mg KOH/g 인 폴리에스테르 수지와 에폭시 당량 700~1,200 g/eq 인 에폭시 수지를 사용하였고, 증점제 함량에 따른 표면의 조도, 광택, 흐름성 실험을 진행하였다.In Examples 5 to 7 of Table 4, a polyester resin having a polyester acid value of 30 to 70 mg KOH/g and an epoxy resin having an epoxy equivalent of 700 to 1,200 g/eq were used, and surface roughness, gloss, A flow test was conducted.
상기 표 4의 실시예 5~7 에서 제조한 메타릭 분체 도료의 도막 시험 결과는 다음과 같다.The coating film test results of the metallic powder paints prepared in Examples 5 to 7 of Table 4 are as follows.
상기 표 6 에서 나타난 바와 같이, 경화 조건 180℃ x 10분(소지 표면 온도 기준)에서 실시예 5~7의 경우 증점제 함량이 증가할수록 조도(표면 거칠기) 수치가 올라가고 광택 수치는 떨어지는 것을 확인할 수 있다. 실시예 5와 같이 증점제의 함량이 0.01~0.05 중량% 일 때 외관 및 흐름성이 가장 양호하며, 실시예 6과 같이 증점제의 함량이 0.01 중량% 이하일 때 외관 및 광택, 휘도는 양호하나 흐름성에 의한 홀막힘이 발생하였으며, 실시예 7과 같이 0.05 중량% 이상일 경우 그릴망 도장 시 흐름성에 의한 홀막힘은 없으나 외관이 거칠며 광택이 낮아 메타릭 안료의 휘도감이 사라지는 현상이 발생하였다.As shown in Table 6, in the case of Examples 5 to 7 under the curing condition of 180 ° C. x 10 minutes (based on the substrate surface temperature), as the content of the thickener increases, the roughness (surface roughness) value increases and the gloss value decreases. . As in Example 5, when the content of the thickener is 0.01 to 0.05% by weight, the appearance and flowability are the best, and as in Example 6, when the content of the thickener is 0.01% by weight or less, the appearance, gloss and brightness are good, but the Hole clogging occurred, and when it was 0.05% by weight or more, as in Example 7, there was no hole clogging due to flowability during painting of the grill net, but the appearance was rough and the gloss was low, so the luminance of the metallic pigment disappeared.
이상을 통해 본 발명에 따른 분체도료 조성물의 우수성과 가능성을 확인할 수 있다.Through the above, the excellence and potential of the powder coating composition according to the present invention can be confirmed.
Claims (5)
첨가제로서 왁스 0.1~1.0 중량%, 증점제 0.01~0.05 중량%, 체질안료 5~10 중량%, 유색안료 30~40 중량%, 유동제 0.1~1.0 중량%, 메타릭 안료 1.0~3.0 중량%, 펄 안료 1.0~3.0 중량%를 포함하는 것을 특징으로 하는 분체도료 조성물.25 to 35% by weight of a polyester resin having a carboxyl group at the terminal group and 20 to 30% by weight of an epoxy resin having a glycidyl ether of bisphenol A at the terminal group,
As additives, wax 0.1-1.0% by weight, thickener 0.01-0.05% by weight, extender pigment 5-10% by weight, colored pigment 30-40% by weight, flow agent 0.1-1.0% by weight, metallic pigment 1.0-3.0% by weight, pearl A powder coating composition comprising 1.0 to 3.0% by weight of a pigment.
상기 폴리에스테르 수지는 산가 30~70 mg KOH/g 이고, 상시 에폭시 수지는 당량 700~1,200 g/eq 인 것을 특징으로 하는 분체도료 조성물.According to claim 1,
The polyester resin has an acid value of 30 to 70 mg KOH / g, and the epoxy resin has an equivalent weight of 700 to 1,200 g / eq.
상기 메타릭 안료는 표면처리공정(코팅공정)이 스테아르산, 실리카, 아크릴, 실리카-아크릴, 실리카-폴리머 중의 하나로 이루어지는 것을 특징으로 하는 분체도료 조성물.According to claim 2,
The metallic pigment is a powder coating composition, characterized in that the surface treatment process (coating process) is made of one of stearic acid, silica, acryl, silica-acrylic, and silica-polymer.
상기 메타릭 안료는 표면처리공정(코팅공정)이 실리카-아크릴 또는 실리카-폴리머와 같은 이중코팅제로 이루어지며, 표면처리공정 후의 메타릭 안료의 입자 사이즈는 30~40마이크론인 것을 특징으로 하는 분체도료 조성물.According to claim 3,
The metallic pigment is a powder coating, characterized in that the surface treatment process (coating process) is made of a double coating agent such as silica-acrylic or silica-polymer, and the particle size of the metallic pigment after the surface treatment process is 30 to 40 microns. composition.
상기 증점제는 폴리테프론, 탈크 중의 적어도 하나이며,
상기 체질안료는 바륨설페이트, 탄산칼슘, 실리카, 수산화마그네슘, 수산화알루미나, 티타늄디옥사이드, 크레이, 알루미나, 운모, 월라스토나이트 중의 적어도 하나인 것을 특징으로 하는 분체도료 조성물.According to any one of claims 2 to 4,
The thickener is at least one of polyteflon and talc,
The extender pigment is a powder coating composition, characterized in that at least one of barium sulfate, calcium carbonate, silica, magnesium hydroxide, alumina hydroxide, titanium dioxide, clay, alumina, mica, wollastonite.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0725981A (en) * | 1993-07-06 | 1995-01-27 | Toray Ind Inc | Epoxy resin composition |
| JPH09176528A (en) * | 1995-12-25 | 1997-07-08 | Dainippon Ink & Chem Inc | Resin composition for powder coating |
| KR101321623B1 (en) * | 2005-08-05 | 2013-10-30 | 엑카르트 게엠베하 | Metal effect pigments comprising a mixed inorganic/organic layer, method for the production of such metal effect pigments, and use thereof |
| KR20170135389A (en) * | 2016-05-31 | 2017-12-08 | 강남제비스코 주식회사 | high-gloss high-leveling powder coating composition |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0725981A (en) * | 1993-07-06 | 1995-01-27 | Toray Ind Inc | Epoxy resin composition |
| JPH09176528A (en) * | 1995-12-25 | 1997-07-08 | Dainippon Ink & Chem Inc | Resin composition for powder coating |
| KR101321623B1 (en) * | 2005-08-05 | 2013-10-30 | 엑카르트 게엠베하 | Metal effect pigments comprising a mixed inorganic/organic layer, method for the production of such metal effect pigments, and use thereof |
| KR20170135389A (en) * | 2016-05-31 | 2017-12-08 | 강남제비스코 주식회사 | high-gloss high-leveling powder coating composition |
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