KR101348666B1 - The composite of epoxy resin powder coating for painting of bpa free type and the valve for water works to be painted the composite - Google Patents
The composite of epoxy resin powder coating for painting of bpa free type and the valve for water works to be painted the composite Download PDFInfo
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- KR101348666B1 KR101348666B1 KR1020130095048A KR20130095048A KR101348666B1 KR 101348666 B1 KR101348666 B1 KR 101348666B1 KR 1020130095048 A KR1020130095048 A KR 1020130095048A KR 20130095048 A KR20130095048 A KR 20130095048A KR 101348666 B1 KR101348666 B1 KR 101348666B1
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- 238000000576 coating method Methods 0.000 title claims abstract description 107
- 239000011248 coating agent Substances 0.000 title claims abstract description 105
- 239000000843 powder Substances 0.000 title claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 15
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 15
- 238000010422 painting Methods 0.000 title claims abstract description 10
- 239000002131 composite material Substances 0.000 title 2
- 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 111
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000000049 pigment Substances 0.000 claims abstract description 14
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 239000004848 polyfunctional curative Substances 0.000 claims abstract description 6
- 239000004593 Epoxy Substances 0.000 claims description 47
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 claims description 26
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 9
- 238000007873 sieving Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 16
- 239000000356 contaminant Substances 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 239000008199 coating composition Substances 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 6
- 239000003973 paint Substances 0.000 abstract description 5
- 230000035515 penetration Effects 0.000 abstract description 5
- 230000009931 harmful effect Effects 0.000 abstract description 4
- 239000004606 Fillers/Extenders Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000004132 cross linking Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 20
- 238000001723 curing Methods 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical group C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013035 low temperature curing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000007585 pull-off test Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
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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
- 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
- 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
- C09D5/033—Powdery paints characterised by the additives
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Paints Or Removers (AREA)
Abstract
Description
본 발명은 BPA free형 도장용 에폭시 수지 분체도료의 조성물과 그 조성물을 도포한 수도용 밸브에 관한 것으로, 더욱 상세하게는 수도용 밸브의 도장에 사용되는 분체도료의 주성분으로 BPA free형 에폭시수지를 사용하여 환경적으로 무해할 뿐만 아니라 자정 기능을 추가하여 도장의 도막에 외부 오염물에 의한 침투를 방지함은 물론 오염물이 유체로부터 도막에 흡착되는 것을 최소화한 에폭시 수지 분체도료의 조성물과 그 조성물이 도포 된 수도용 밸브에 관한 것이다.
The present invention relates to a composition of a BPA free type epoxy resin powder coating for coating and a water valve coated with the composition, and more particularly, using BPA free type epoxy resin as a main component of a powder coating used for coating a water valve. It is not only environmentally harmless but also adds the self-cleaning function to prevent the penetration of external contaminants into the coating film, as well as to minimize the absorption of contaminants from the fluid into the coating film. It is about a valve.
일반적으로 수도용밸브는 수도관 및 기타 유체의 수송에 주로 사용되며, 분체 도료 조성물을 상기 밸브의 몸체와 그 내면에 도장한 후 수도관과 함께 지하에 매설하기 때문에, 도장용 분체 도료의 조성물은 지하에 매설되기 전까지의 도막에 요구되는 특성과 지하 매설 후 도막에 요구되는 특성을 모두 만족하여야 한다.In general, the water valve is mainly used for transporting water pipes and other fluids, and since the powder coating composition is coated on the body and the inner surface of the valve and buried underground together with the water pipe, the composition of the coating powder coating is buried underground. All the properties required for the coating before and until after the undergrounding are satisfied.
지하에 매설되기 전에 요구되는 수도관용 밸브의 분체 도료 조성물의 특성은 수도관용 밸브가 도장 된 후에 지하에 매설하기 위해서 밸브의 이동과 조립 중에 발생하는 외부의 충격이나 벤딩(bending), 용제와의 접촉, 자외선 노출 등에 견뎌야 하므로 기본적인 기계적 물성을 갖추어야 한다.
The characteristics of the powder coating composition of the water pipe valves required before they are buried underground are caused by external impacts, bending and contact with solvents during the movement and assembly of the valves for undergrounding after the water pipe valves are painted. It must be able to endure UV exposure, so it should have basic mechanical properties.
또한 지하에 매설되기 전에 요구되는 특성보다 더욱 중요한 특성인 지하에 매설된 후에 요구되는 특성은 지하에서 수분에 의한 내식성에 견뎌야 하고, 온수에도 저항성이 있어야 하므로 내식성을 시험한 물성(내염수 분무성 500시간 이상, 음극 박리시험을 만족시켜야 하며, 온수에 대한 물성(내열탕성 시험)을 갖추어야 한다.In addition, the properties required after being buried underground, which are more important than those required before they are buried underground, must withstand the corrosion resistance caused by moisture in the basement and should be resistant to hot water. Over time, the cathodic peel test should be satisfied and the physical properties (hot water resistance test) for hot water should be provided.
더불어 수도용 밸브 도장용 분체 도료 조성물에 의한 도막의 전반적인 물성을 갖추기 위한 도막의 두께는 150㎛이상를 유지하여야 하며, 도막 내의 기공은 적어야 하고, 내산성 및 내알카리성 등의 화학적 물성을 가져야 한다.
In addition, the thickness of the coating film to maintain the overall physical properties of the coating film by the powder coating composition for water valve coating should be more than 150㎛, the pores in the coating film should be small, and have chemical properties such as acid resistance and alkali resistance.
한편, 수도용 밸브 뿐만 아니라, 이음 부재, 엘보(Elbow) 등과 같은 이형관의 경우에도 요구되는 물성이 동일하게 요구된다.On the other hand, not only the water valve, but also in the case of a release pipe such as a joint member, an elbow (Elbow), etc. required physical properties are equally required.
일반적으로 수도용 밸브 및 이형관은 부식방지 및 보호코팅제로서, 액상 역청질이나 BPA(bisphenol A)형 에폭시 분체 도료 조성물이 이미 개발되어 널리 적용되고 있다.In general, the water valve and the release pipe is a corrosion preventing and protective coating agent, liquid bitumen or BPA (bisphenol A) type epoxy powder coating composition has already been developed and widely applied.
상기 분체 도료인 BPA(bisphenol A)형 에폭시 분체도료는 비스페놀 A형 에폭시 수지와 에폭시 경화제, 경화촉진제 등을 주성분으로 하고, 무기 충진제, 기타 첨가제를 혼합, 용융분산, 분쇄, 여과시킨 후 만든 분체도료로서, BPA(bisphenol A)형 에폭시 분체도료는 BPA(bisphenol A)형 에폭시 수지가 주성분으로서 가장 대표적인 에폭시 type이다.BPA (bisphenol A) type epoxy powder coating is a powder coating made of bisphenol A type epoxy resin, epoxy curing agent, curing accelerator, etc., after mixing, melt dispersion, grinding and filtration of inorganic filler and other additives. As BPA (bisphenol A) type epoxy powder coating, BPA (bisphenol A) type epoxy resin is the most representative epoxy type as the main component.
특히, 상기 BPA형 에폭시 분체도료는 내식성 및 피도체와의 접착력, 우수한 기계적 물성을 가지며, BPA(bisphenol A)형 에폭시 분체도료에 사용되는 수지는 현재까지 상업적으로 가장 중요하게 많이 사용되는 에폭시 수지로서 BPA(bisphenol A)로 알려진 DPP(diphenylopropane)와 ECH(epichlorohydrin)의 축합반응에 의해 생산되는 디글리시딜 에테르(diglycidyl ether)형 에폭시 수지이다.In particular, the BPA-type epoxy powder coating has corrosion resistance and adhesion to the coating material, excellent mechanical properties, and the resin used for the BPA (bisphenol A) type epoxy powder coating is the most commonly used epoxy resin to date. It is a diglycidyl ether type epoxy resin produced by the condensation reaction of diphenylopropane (DPP) and epichlorohydrin (ECH) known as BPA (bisphenol A).
에폭시 분체도료에서 요구되는 기계적, 화학적 특성을 그대로 유지하면서도 보다 더 환경에 무해하고 안전한 수도 밸브용 에폭시 분체 도료가 요구되고 있는 실정이다.
There is a need for an epoxy powder coating for water valves, which is more harmless and safer to the environment while maintaining the mechanical and chemical properties required for epoxy powder coating.
본 발명은 상기와 같은 문제점을 해소하기 위하여 안출 된 것으로서, 본 발명의 첫 번째 목적은 수도용 밸브의 도장에 BPA(Bisphenol A) Free형 에폭시(epoxy) 분체도료를 사용함으로써 환경적으로 무해한 분체도료의 조성물을 제공하는 데 있으며, 두 번째 목적은 수도용 밸브의 도장에 사용되는 분체도료에 자정 기능을 추가함으로써 도장의 도막에 외부 오염물에 의한 침투를 방지함은 물론 표면 흡착량을 최소화하여 유체로부터 오염물이 도막에 흡착되는 것을 최소화한 분체도료의 조성물이 도포 된 수도용 밸브를 제공하는 데 있으며, 세 번째 목적은 분체도료의 탁월한 부착성과 도막의 우수한 내식성 및 내구성을 지니고 있는 수도용 밸브 도장용 에폭시 분체도료의 조성물을 제공하는 데 있다.
The present invention has been made to solve the above problems, the first object of the present invention is the use of BPA (Bisphenol A) free type epoxy (epoxy) powder coating for painting the water valve of the environmentally harmless powder coating The second purpose is to add a self-cleaning function to the powder coating used for the coating of water valves to prevent the infiltration of external contaminants into the coating of the coating, as well as to minimize the amount of surface adsorption to remove contaminants from the fluid. To provide a water valve having a composition of powder coating minimized to be adsorbed to the coating film, the third object is the composition of the epoxy powder coating for water valve coating having excellent adhesion of the powder coating and excellent corrosion resistance and durability of the coating film To provide.
상기한 목적에 따른 수도용 밸브 도장용 에폭시 분체도료의 조성물은 BPA(Bisphenol A) Free형 에폭시(epoxy) 수지 50~80중량%, 경화제 1~30중량%, 경화촉진제 0.05~2중량%, 체질안료 5~30중량%, 색상안료 1~25중량%, 첨가제 0.5~2중량%로 구성된다.
Composition of the epoxy powder coating for water valve coating according to the above object is 50 to 80% by weight of BPA (Bisphenol A) free epoxy resin, 1 to 30% by weight curing agent, 0.05 to 2% by weight curing accelerator, extender pigment It consists of 5-30% by weight, 1-25% by weight of color pigments, 0.5-2% by weight of additives.
상기와 같은 본 발명에 의하면 수도용 밸브의 도장에 환경유해성이 없는 BPA(Bisphenol A) Free형 에폭시(epoxy) 분체도료를 사용하여 환경유해성이 없다는 장점이 있다. According to the present invention as described above there is an advantage that there is no environmental hazard by using the BPA (Bisphenol A) Free type epoxy (epoxy) powder coating which is not environmentally harmful to the coating of the water valve.
또한 수도용 밸브의 도장에 사용되는 분체도료에 자정 기능을 추가함으로써 도장의 도막에 외부 오염물에 의한 침투를 방지함은 물론 도막의 가교 밀도 기술을 통해 표면 흡착량을 최소화하여 유체로부터 오염물이 도막에 흡착되는 것을 최소화함으로써 상수도 도관 내에 물때 등이 발생하지 않도록 하는 장점이 있다.In addition, by adding the self-cleaning function to the powder coating used for painting the water valve, it prevents penetration by external contaminants in the coating film, and minimizes the surface adsorption through the cross-link density technology of the coating film. There is an advantage to minimize the occurrence of scale, etc. in the water supply conduit by minimizing.
더욱이 수도용 밸브에 대한 분체도료의 탁월한 부착성과 분체도료가 도장 된 도막의 우수한 내식성 및 내구성을 지니고 있으며 상용성이 있는 매우 유용한 발명이다.
Moreover, it is a very useful invention having excellent adhesion of powder coating to water valves and excellent corrosion resistance and durability of coating coated with powder coating.
도 1은 수도용 밸브의 도장을 위한 에폭시 분체도료의 자정 능력을 시험하기 위한 시험 전 사진.
도 2는 수도용 밸브의 도장을 위한 에폭시 분체도료의 자정 능력을 시험하기 위한 시험 후 사진.
도 3은 수도용 밸브의 사시도.1 is a photograph before the test for testing the self-cleaning ability of the epoxy powder coating for the coating of water valves.
Figure 2 is a photograph after the test for testing the self-cleaning ability of the epoxy powder coating for the coating of the water valve.
3 is a perspective view of the water valve.
이하, 본 발명을 도면과 함께 상세히 설명하면 다음과 같다.
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 발명은 수도용 밸브를 도장하는 에폭시 분체도료로서, 종래의 BPA형 에폭시를 사용하지 않은 BPA Free형 에폭시 분체도료로 수도용 밸브 내, 외면에 도장함으로써 환경에 유해성이 없도록 구성한 발명으로서, 본 발명의 실시 예에 따른 수도용 밸브의 도장용 BPA(Bisphenol A) Free형 에폭시(epoxy) 분체도료는 BPA(Bisphenol A) Free형 에폭시(epoxy) 50~80중량%와, 경화제 1~30중량%와, 경화촉진제 0.05~2중량%와, 체질안료 5~30중량%와, 색상안료 1~25중량%와, 첨가제 0.5~2중량%로 구성되며, 상기 경화제는 BPF(Bisphenol F)계와 디시안디아미드(Dicyandiamide, DCDA)의 화합물로 구성되는 것이 특징이다.The present invention is an epoxy powder coating for painting a water valve, and is a BPA free type epoxy powder coating which does not use a conventional BPA type epoxy, and is formed so as not to be harmful to the environment by painting the inside and outside of the water valve. BPA (Bisphenol A) free epoxy powder coating for the water valve according to the example is 50 to 80% by weight of BPA (Bisphenol A) free epoxy, 1 to 30% by weight of the curing agent, and a curing accelerator 0.05 ~ 2% by weight, 5 ~ 30% by weight pigment, 1 ~ 25% by weight pigment, 0.5 ~ 2% by weight additive, the hardener is BPF (Bisphenol F) -based and dicyandiamide And DCDA).
상기 첨가제는 모디파이드 폴리아크릴래이트(Modified Polyacrylate)계 성분으로서 0.5~2중량% 함유되어 있어 자정 기능 및 상용성을 가지도록 구성하였으며, 체질안료와 색상안료를 통해 다양한 색상 설계 개발이 가능하도록 구성하였다.The additive is 0.5 ~ 2% by weight as a modified polyacrylate-based component is configured to have a self-cleaning function and compatibility, it is configured to enable a variety of color design development through sieving pigments and color pigments It was.
특히, 일반 BPF형 분체도료의 특성인 속(速)경화에 따라 기공(Porosity)이 다량 발생하는 것을 개선하기 위하여 본 발명의 실시예에 따른 BPA free형 에폭시 분체도료는 경화제를 BPF(Bisphenol F)계와 디시안디아미드(Dicyandiamide, DCDA)의 화합물로 구성함으로써 경화 밀도를 최적화시켜 저온 경화를 가능하도록 하였으며, 이에 따라 내화학성 및 내식성이 우수한 장점이 있다.In particular, BPA free epoxy powder coating according to an embodiment of the present invention is a BPF (Bisphenol F) in order to improve the generation of a large amount of porosity (porosity) according to the curing of the general BPF-type powder coating It is composed of a compound of the system and dicyandiamide (DCDA) to optimize the curing density to enable low-temperature curing, accordingly has the advantage of excellent chemical resistance and corrosion resistance.
따라서 BPA(Bisphenol A) Free형 에폭시(epoxy) 50~80중량%, 경화제 1~30중량%, 경화촉진제 0.05~2중량%, 체질안료 5~30중량%, 색상안료 1~25중량%, 첨가제 0.5~2중량%로 구성되는 에폭시 수지 분체도료의 조성물로 제조된 분체도료를 수도용 밸브의 내주면과 외주면에 도포함으로써 이물질의 흡착을 최소화하여 오염되지 않으며 자정기능이 있는 수도용 밸브를 도장하여 제조하게 되었다.Therefore, 50 ~ 80% by weight of BPA (Bisphenol A) free epoxy, 1 ~ 30% by weight curing agent, 0.05 ~ 2% by weight curing accelerator, 5 ~ 30% by weight pigment, 1 ~ 25% by weight pigment, additive Powder coating made of epoxy resin powder coating composition composed of 0.5 ~ 2% by weight is applied to the inner and outer surfaces of the valve for water to minimize the adsorption of foreign substances and to paint the valve for water that has a self-cleaning function. .
이러한 수도용 밸브는 도막의 가교 밀도기술과 외부 오염물에 의한 침투를 방지할 수 있는 효과가 있다.Such a water valve has the effect of preventing the cross-link density technology of the coating film and penetration by external contaminants.
한편, 본 발명의 BPA free형 에폭시 분체도료의 조성물 및 조성물의 함량변화에 따른 다양한 실시예를 실시하고 그 조성물의 값을 아래 표 1에 나타내었다.
On the other hand, various embodiments of the BPA free type epoxy powder coating of the present invention according to the composition and the content change of the composition were carried out and the values of the composition are shown in Table 1 below.
상기와 같은 BPA free형 분체도료의 조성물에 의한 다양한 실시예를 통해 조성물의 바람직한 함량값과 범위를 설정하였다.Through various examples of the composition of the BPA free powder coating as described above, the preferred content values and ranges of the composition were set.
또한, 상기 BPA free형 에폭시 분체도료의 다양한 조성물을 통해 실시한 실시예에 대하여 하기 제반 물성 평가 시험방법에 의해 비중, 도막 밀착성, 도막 내충격성, 도막 가요성, 도막 긁힘저항성, 도막 방식성, 도막내 온도반복성, 부착성 및 내크리닝성을 측정하고 그 결과를 아래 표 2에 나타내었다.
In addition, specific gravity, coating film adhesion, coating film impact resistance, coating film flexibility, coating film scratch resistance, coating film corrosion resistance, coating film by the following various physical property evaluation test method for the embodiment carried out through the various compositions of the BPA free type epoxy powder coating Temperature repeatability, adhesion and cleaning resistance were measured and the results are shown in Table 2 below.
상기 표 2를 통하여 확인할 수 있듯이, 본 발명의 실시예에 따른 BPA free 에폭시 분체도료는 도막 밀착성이 우수하여 BPA(Bisphenol A) 에폭시 분체도료나 BPF(Bisphenol F) 분체도료에 비해 탁월한 부착성과 고 내식성의 특성을 가지고 있다.As can be seen through Table 2, BPA free epoxy powder coating according to an embodiment of the present invention is excellent in adhesion to the coating film, excellent adhesion and high corrosion resistance compared to BPA (Bisphenol A) epoxy powder coating or BPF (Bisphenol F) powder coating Has the characteristics of
또한 BPA 에폭시 분체도료와 BPF 에폭시 분체도료와 같은 종래에 널리 사용되어 온 분체도료의 자정기능 및 상용성에 대한 문제점을 보완하기 위하여 본 발명의 실시예에 따른 BPA Free 에폭시 분체도료는 모디파이드 폴리아크릴래이트(Modified Polyacrylate)계 성분이 0.5~2중량% 함유되어 분체도료 적용시 발생 될 수 있는 상용성에 문제가 발생 되지 않도록 구성하였다.In addition, BPA Free epoxy powder coating according to an embodiment of the present invention is a modified polyacrylic in order to supplement the problems of the self-cleaning function and compatibility of powder coatings that have been widely used in the past, such as BPA epoxy powder coating and BPF epoxy powder coating It contains 0.5 ~ 2% by weight of modified polyacrylate-based components so that it does not cause any compatibility problems that may occur when powder coating is applied.
특히 도막 내충격성과 도막의 긁힘저항성 및 도막방식성 등이 우수하여 배관 사이에 결합 되어 유체의 흐름을 제어하고자 사용되는 수도용 밸브가 와류로 인해 마모되는 현상을 방지할 수 있으며, 밸브의 표면에 물이 물방울이 되지않고 흐르는 현상으로 와류 발생시 마찰을 최소화하고 이물질과의 마찰시에도 표면층의 마모를 방지하는 효과가 있다. In particular, it is excellent in impact resistance of film, scratch resistance of coating and coating method, and can prevent water valve from being worn due to vortex when it is coupled between pipes and used to control the flow of fluid. It is a phenomenon that flows without water droplets, which minimizes friction when vortex occurs and prevents wear of the surface layer even when friction with foreign substances.
따라서 부수적으로 수도용 밸브의 수명을 연장하고 연장된 밸브의 수명은 유지관리비용이나 공사비용 등의 원가를 절감하는 효과가 있다.Accordingly, the life of the valve for water and the life of the extended valve has the effect of reducing the cost of maintenance and construction costs.
본 발명의 실시예에 따른 수도용 밸브 및 가변이형관 도장용 BPA free형 에폭시 분체도료의 자정 기능을 확인하기 위한 시험을 실시하였으며, 시험방법은 다음과 같다.A test was performed to confirm the self-cleaning function of the BPA free epoxy powder coating for water valve and variable release pipe coating according to an embodiment of the present invention, and the test method is as follows.
먼저, 실시예로서 BPA Free형 에폭시(epoxy) 분체도료가 도장 된 시험편(a)과, 비교실시예 1으로서 BPA 에폭시(epoxy) 도료가 도장 된 시험편(b)과, 비교실시예 2로서 BPA 에폭시(epoxy) 도료가 도장 된 시험편(c)을 준비한 다음 각 시험편을 경화한 후 수성 보드 마커(Dong-A)펜으로 빨강과 파랑과 검정색을 다섯 줄씩 그은 다음 시험편을 45도 경사로 기울인 후 흐르는 물(Tap water)을 5~10초 동안 흘려 보낸 후 자연적으로 닦이는 정도를 평가하였습니다.
First, a test piece (a) coated with BPA-free epoxy powder coating as an example, a test piece (b) coated with a BPA epoxy paint as comparative example 1, and a BPA epoxy as Comparative Example 2 Prepare specimens (c) coated with (epoxy) paint, and after curing each specimen, draw five lines of red, blue, and black with an aqueous board marker (Dong-A) pen, tilt the specimen at a 45-degree slope, and Tap water) was flowed for 5-10 seconds and then wiped off naturally.
도 1은 본 발명의 수도관용 밸브 도장을 위한 에폭시 분체도료의 자정 능력을 시험하기 위한 시험 전 사진과 도 2는 본 발명의 수도관용 밸브 도장을 위한 에폭시 분체도료의 자정 능력을 시험하기 위한 시험 후 사진으로서, 도 1과 도 2를 참고하면, 시험 후에 시험편 a에는 마커펜이 말끔히 지워진 것을 확인할 수 있었다.1 is a photograph before the test for testing the self-cleaning ability of the epoxy powder coating for water pipe valve coating of the present invention and Figure 2 is a test for testing the self-cleaning ability of the epoxy powder coating for the valve coating for water pipe of the present invention. 1 and 2 as a photograph, it was confirmed that the marker pen was neatly erased on the test piece a after the test.
특히 BPA 에폭시 분체도료와 BPF 에폭시 분체도료가 오염원에 대한 자정(Self-cleaning) 기능이 떨어지는 반면 본 발명의 실시예에 따른 BPA Free형 에폭시 분체도료는 이러한 기존 분체도료의 단점을 보완하기 위한 것으로서 유체의 흐름 특히 수돗물과 빗물에 의해 수도용 밸브의 내, 외면이 쉽게 세척될 수 있는 기능을 가진 분체도료로서 물이 물방울이 되지 않고 막이 되어 미끄러지듯 떨어짐으로써 오염물 및 먼지 등이 쉽게 떨어지도록 구성하였다. In particular, while BPA epoxy powder coating and BPF epoxy powder coating have a poor self-cleaning function to pollutants, the BPA free type epoxy powder coating according to the embodiment of the present invention is intended to compensate for the disadvantages of the conventional powder coating. It is a powder paint that has the function to easily wash the inside and outside surfaces of water valves by tap water and rain water, and it is configured so that contaminants and dusts fall easily as water falls off as a membrane instead of water droplets.
이러한 특성은 수도용 밸브의 내, 외면에 도장 되는 분체도료의 도막에 가교 밀도 기술을 통해 도막의 경화밀도를 치밀하게 구성하여 오염원의 침투가 억제되도록 하였으며, 표면 제어를 통해 표면 흡착량을 최소화함으로써 외부 오염물이 침투되는 것을 방지할 수 있음은 유체로부터 오염물이 도막에 흡착되는 것을 최소화하도록 하는 장점이 있어 수도용 밸브에 적용 시 매우 양호한 내구성을 가진다.
This characteristic makes the coating film of powder coating coated on the inner and outer surface of the water valve tightly configured through the crosslinking density technology to prevent the penetration of contaminants through the surface control and minimize the surface adsorption through the surface control. The ability to prevent contaminants from penetrating has the advantage of minimizing the adsorption of contaminants from the fluid onto the coating film, which has very good durability when applied to water valves.
a : 본 발명의 실시예에 따른 BPA Free형 에폭시(epoxy) 분체도료가 도장 된 시험편.
b : 비교실시예 1에 따른 BPA 에폭시(epoxy) 분체도료가 도장 된 시험편.
c : 비교실시예 2에 따른 BPA 에폭시(epoxy) 분체도료가 도장 된 시험편.
10 : 수도용 밸브 표면과 내주면에 도포 된 본 발명 분체도료.a: Test piece coated with BPA-free epoxy powder coating according to an embodiment of the present invention.
b: Test piece coated with BPA epoxy powder coating according to Comparative Example 1.
c: Test piece coated with BPA epoxy powder coating according to Comparative Example 2.
10: The powder coating of the present invention applied to the water valve surface and the inner circumferential surface.
Claims (4)
50 ~ 80% by weight of BPA (Bisphenol A) free epoxy, 1 ~ 30% by weight of hardener composed of BPF (Bisphenol F) and dicyandiamide (DCDA), 0.05 ~ 2% by weight of curing accelerator %, Sieving pigment 5-30% by weight, color pigment 1-25% by weight, the composition of the epoxy resin powder coating for BPA free type coating, characterized in that consisting of 0.5 ~ 2% by weight of the additive.
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| KR102374675B1 (en) * | 2021-02-18 | 2022-03-16 | (주)신안주철 | Antimicrobial coating and anti slime coating for water pipes |
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| JP2000290585A (en) | 1999-04-07 | 2000-10-17 | Tsutsumi Yotaro | Can coating material, coated can and coated can cap |
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