NaLawrence (Larry) Van Iseghem ndiye Mutungamiriri/Mukuru Mukuru weVan Technologies, Inc.
Mukufamba kwekuita bhizinesi nevatengi vemaindasitiri pasi rose, takagadzirisa nhamba inoshamisa yemibvunzo uye takapa mhinduro dzakawanda dzine chekuita neUV-anorapika machira. Inotevera mimwe yemibvunzo inowanzobvunzwa, uye mhinduro dzinotevera dzingapa nzwisiso inobetsera.
1. Chii chinonzi UV-anorapika coatings?
Muindasitiri yekupedzisa huni, kune matatu makuru marudzi eUV-anorapika coatings.
100% inoshanda (dzimwe nguva inonzi 100% solids) UV-inorapika coatings imvura yemakemikari zvinyorwa izvo zvisina chero zvinonyungudutsa kana mvura. Pamusoro pekushandisa, iyo yekupfekedza inokurumidza kuoneswa kune UV simba pasina kukosha kwekuoma kana kubuda evaporate isati yarapwa. Iyo yakamisikidzwa yekumisikidza yekumisikidza inoita kuti igadzire yakasimba pamusoro pedhiri kuburikidza neiyo reactive process inotsanangurwa uye inodaidzwa zvakakodzera kuti photopolymerization. Sezvo pasina kufefetedza kunodiwa kusati kwapora, mashandisirwo uye nzira yekurapa inoshanda zvinoshamisa uye inodhura.
Anemvura kana anonyungudika-anotakurwa mahybrid UV-anorapika majasi sezviri pachena ane ingave mvura kana inonyungudutsa kuderedza inoshanda (kana yakasimba) zvirimo. Uku kudzikiswa kwezvinhu zvakasimba kunobvumira kureruka kukuru mukudzora iyo yakanyoroveswa firimu ukobvu, uye/kana mukudzora viscosity yejasi. Mukushandiswa, aya maV ekuputira anoiswa pahuni kuburikidza nenzira dzakasiyana siyana uye anoda kuomeswa zvizere pamberi peUV kurapwa.
UV-anorapika poda machira zvakare ane 100% yakasimba nziyo uye anowanzo shandiswa kune conductive substrates kuburikidza nemagetsi kukwezva. Kana yangoiswa, iyo substrate inopisa kunyungudutsa hupfu, iyo inoyerera kunze kuita firimu repamusoro. Iyo yakavharidzirwa substrate ipapo inogona kuvhenekerwa nekukasira kuUV simba kufambisa kurapwa. Iyo inozobuda pamusoro pefirimu haisisiri kupisa kana kupisa.
Kune misiyano yeaya maV-anorapika machira anowanikwa ane yechipiri kurapa mashandiro (kupisa kwakabatiswa, mwando reactive, nezvimwewo) izvo zvinogona kupa kurapwa munzvimbo dzepamusoro dzisina kuratidzwa kune UV simba. Aya machira anowanzo kunzi maviri-anorapa coatings.
Pasinei nemhando yeUV-inorapika coating inoshandiswa, iyo yekupedzisira pamusoro pekupedzisira kana layer inopa yakasarudzika mhando, kusimba uye kuramba zvivakwa.
2. Ko majeti anorapika eUV anonamira sei kumhando dzakasiyana dzehuni, kusanganisira mhando dzehuni dzine mafuta?
UV-anorapika machira anoratidza kunamatira kwakanyanya kune mazhinji emhando yehuni. Izvo zvakakosha kuve nechokwadi kuti yakakwana yekurapa mamiriro aripo kuti ape kuburikidza nekurapa uye inoenderana adhesion kune substrate.
Kune dzimwe mhando dzinenge dzine mafuta akawanda uye dzinogona kuda kushandiswa kweadhesion-promoting primer, kana "tiecoat." Van Technologies yakaita tsvakiridzo yakakura uye kusimudzira mukunamira kweUV-anorapika machira kune aya marudzi ehuni. Zvichangobva kuitika zvinosanganisira imwe chete UV-inorapika sealer inodzivirira oiri, muto uye namo kubva mukukanganisa UV-inorapika topcoat adhesion.
Neimwe nzira, mafuta aripo pamusoro pehuni anogona kubviswa nguva isati yasvika yekuputira application nekupukuta neacetone kana imwe yakakodzera solvent. Jira risina lint, rinosveta rinotanga kunyoroveswa nezvinonyungudutsa zvozopukutwa pamusoro pehuni. Iyo yepamusoro inotenderwa kuoma uye ipapo iyo UV-inorapika coating inogona kuiswa. Kubviswa kwemafuta epamusoro uye zvimwe zvinosvibisa zvinokurudzira kusungirirwa kunotevera kwejira rinoshandiswa pahuni.
3. Ndeupi rudzi rwemavara anowirirana neUV coatings?
Chero mavara anotsanangurwa pano anogona kunyatsovharwa uye akavharwa nepamusoro-soro ne100% UV-inorapika, yakaderedzwa-yakaderedzwa UV-inorapika, yemvura-UV-inorapika, kana UV-inorapika poda masisitimu. Naizvozvo, kune akati wandei masanganiswa anoshanda anoita mazhinji chero tsvina pamusika yakakodzera chero UV-inorapika coating. Kune, zvisinei, zvimwe zvinotariswa izvo zvinocherechedzwa kuve nechokwadi chekuenderana kuripo kune yemhando yepamusoro yehuni kupera.
Mavara Ane Mvura uye Ane Mvura-UV-Anopora Mavara:Paunenge uchiisa chero 100% UV-inorapika, yakanyungudutsa-yakaderedzwa UV-inorapika kana UV-inorapika poda sealers/topcoat pamusoro pematanho akazara nemvura, zvakakosha kuti gwapa racho riome zvakazara kudzivirira kukanganisa mukupfeka kufanana, kusanganisira peel orenji, hove, cratering. , kuungana uye kudhonzera. Kukanganisa kwakadaro kunoitika nekuda kwekuderera kwepasi tension yezvipfeko zvakashandiswa maererano nepamusoro pemvura yakasara yemvura kubva kune tsvina yakashandiswa.
Kuiswa kwejasi remvura-UV-inorapika, zvisinei, kazhinji kukanganwira. Iyo tsvina yakashandiswa inogona kuratidza kunyorova pasina mhedzisiro kana uchishandisa mamwe emvura-UV-anorapika sealers/topcoat. Yakasara mwando kana mvura kubva pakusviba application inopararira nyore nyore kuburikidza neyakaiswa mvura-UV sealer/topcoat panguva yekuomesa. Zvinokurudzirwa, zvisinei, kuti uedze chero tsvina uye sealer/topcoat musanganiswa pane mumiriri webvunzo sampuli usati wazvipira kune iyo chaiyo uso kuti upedze.
Mafuta-Anobva uye Solvent-Borne Stains:Kunyangwe panogona kunge paine sisitimu inogona kushandiswa kune isina kukwana akaomeswa-based-based-based kana solvent-borne tsvina, kazhinji inodiwa, uye inokurudzirwa zvakanyanya, kuomesa zvizere aya mavara isati yaiswa chero sealer/topcoat. Mavara anononoka kuomesa emhando idzi angada kusvika maawa makumi maviri nemana kusvika makumi mana nemasere (kana kureba) kuti awane kuoma kuzere. Zvakare, kuedza hurongwa pahuni hunomiririra huni hunorayirwa.
100% UV-Anopora Mavara:Kazhinji, 100% UV-anorapika machira anoratidza yakakwira makemikari uye kudzivirira kwemvura kana yanyatsopora. Kupokana uku kunoita kuti zviome kuti majasi anozoiswa anonamira zvakanaka kunze kwekunge iri pasi peUV-yakaporeswa nzvimbo yakavharwa zvakaringana kuti ibvumidze kusungirirwa kwemuchina. Kunyangwe 100% UV-anorapika mavara akagadzirwa kuti agamuchire mabhandi anozoiswa anopihwa, akawanda 100% UV-anorapika mavara anoda kubvongodzwa kana kupora zvishoma (anonzi "B" nhanho kana bump kurapa) kukurudzira kunamatira intercoat. "B" dhizaini inokonzeresa nzvimbo dzakasara dzakasimba mu stain layer iyo inopindirana neyakaiswa UV-inorapika coating sezvo iri pasi pemamiriro ekurapa akazara. "B" dhizaini zvakare inobvumira nyoro kuvharika kune denib kana kucheka chero kukwidziridzwa kwezviyo kunogona kuitika kubva mukushandiswa kwemavara. Smooth chisimbiso kana topcoat application inozoguma neyakanakisa intercoat adhesion.
Kumwe kunetseka ne100% UV-anorapika mavara ane chekuita nemavara matema. Mavara ane pigmented zvakanyanya (uye mabhachi ane pigment kazhinji) anoita zvirinani kana uchishandisa marambi eUV anoendesa simba pedyo nemwenje unooneka. mwenje weUV akajairwa ane gallium akasanganiswa neakajairwa mercury marambi isarudzo yakanaka. Mwenje weUV LED anoburitsa 395 nm uye/kana 405 nm anoita zvirinani ane pigmented masisitimu ane hukama ne365 nm uye 385 nm arrays. Uyezve, UV mwenje masisitimu anopa yakakura UV simba (mW/cm2) uye kuwanda kwesimba (mJ/cm2) kukurudzira kurapwa kuri nani kuburikidza neyakaiswa tsvina kana pigmented coating layer.
Chekupedzisira, semamwe masisitimu etsvina ataurwa pamusoro, kuyedzwa kunorairwa usati washanda nenzvimbo chaiyo kuti ishatirwe nekupedzwa. Iva nechokwadi usati wapora!
4. Ndeipi yakakura / shoma firimu inovaka 100% UV coatings?
UV-inorapika poda yakanamwa zvine hunyanzvi ndeye 100% UV-anorapika majasi, uye ukobvu hwawo hwakaiswa hunoganhurwa nemagetsi emagetsi ekukwezva anosunga hupfu kumusoro uchipedzwa. Zvakanakisa kutsvaga kurudziro yemugadziri weUV powder coatings.
Nezve mvura 100% UV-inorapika machira, iyo yakanyorovesa firimu ukobvu inozoguma neyakafanana yakaoma firimu ukobvu mushure mekurapa kweUV. Imwe shrinkage haidzivisiki asi kazhinji ine mhedzisiro shoma. Kune, zvisinei, zvakanyanya tekinoroji maapplication anotsanangudza yakasimba kwazvo kana nhete firimu ukobvu kushivirira. Mumamiriro ezvinhu aya, kuyerwa kwefirimu kwakarapwa kwakananga kunogona kuitwa kubatanidza kunyorova nekuoma kwefirimu ukobvu.
Iyo yekupedzisira yakarapwa ukobvu hunogona kuwanikwa hunoenderana nekemikari yeUV-inorapika coating uye kuti inogadzirwa sei. Kune masisitimu aripo akagadzirwa kuti ape madhipoziti akaonda kwazvo emufirimu pakati pe0.2 mil - 0.5 mil (5µ - 15µ) uye mamwe anogona kupa ukobvu hunodarika 0.5 inches (12 mm). Kazhinji, maV-akaporeswa machira ane yakakwira-link density, senge mamwe urethane acrylate maumbirwo, haakwanise kukwirisa firimu ukobvu mune imwechete yakaiswa layer. Iyo dhigirii yekudzikira pakurapa inokonzeresa kutsemuka kwakanyanya kweiyo yakakoshwa coating. Kuvaka kwepamusoro kana kupedzisa ukobvu kuchiri kuwanikwa kuburikidza neUV-inorapika machira epamusoro-muchinjiko density nekuisa akawanda matete akaturikidzana uye kungave sanding uye/kana “B” staging pakati pega ega danda kusimudzira intercoat adhesion.
Iyo reactive kurapa nzira yeakawanda UV-anorapika machira anonzi "mahara radical yakatangwa." Iyi reactive kurapa nzira inobatwa neokisijeni mumhepo iyo inononoka kana kuvharidzira kumhanya kwekurapa. Kunonoka uku kunowanzo kunzi kuvharirwa kweokisijeni uye kunonyanya kukosha kana uchiedza kuwana kutetepa kwefirimu. Mumafirimu akaonda, nzvimbo yepasi kusvika kuhuwandu hwehuwandu hwekuputira yakashongedzwa yakakwira zvakanyanya kana ichienzaniswa nekukora kwemafirimu. Naizvozvo, hutete hwemufirimu hwakaonda hunonyanya kukanganiswa neokisijeni inhibition uye kurapa zvishoma nezvishoma. Kazhinji, pamusoro pekupedzisa kunoramba kusina kupora uye kunoratidza kunzwa kwemafuta / mafuta. Kurwisa kuvharika kweokisijeni, magasi asingaiti senitrogen necarbon dioxide anogona kupfuudzwa pamusoro pemvura panguva yokurapa kuti abvise kuwanda kweokisijeni, nokudaro zvichibvumira kupora kwakakwana, nokukurumidza.
5. Kujeka kwakajeka kweUV coating?
100% UV-anorapika machira anogona kuratidza kujeka kwakanakisa uye anokwikwidza akanakisa akajeka majasi muindasitiri. Uyezve, kana akaiswa pahuni, anobudisa runako rukuru nokudzika kwechifananidzo. Kunyanya kufarira kwakasiyana-siyana aliphatic urethane acrylate masisitimu ayo akajeka zvinoshamisa uye asina ruvara kana akaiswa kune akasiyana siyana enzvimbo, kusanganisira huni. Uyezve, aliphatic polyurethane acrylate coatings akanyanya kugadzikana uye anoramba kushanduka nezera. Zvakakosha kuratidza kuti pasi-gloss coatings inoparadzira chiedza zvakanyanya kudarika gloss coatings uye ichava nekujekesa kwakaderera. Zvinei kune mamwe machemistri ekuputira, zvisinei, 100% UV-anorapika machira akaenzana kana asiri epamusoro.
Mvura-UV-inorapika machira aripo panguva ino anogona kugadzirwa kuti ape kujeka kwakasiyana, kudziya kwehuni uye mhinduro kukwikwidza akanakisa akajairwa kupedzisa masisitimu. Kujeka, kupenya, kupindurwa kwehuni uye zvimwe zvinoshanda zveUV-anorapika machira anowanikwa mumusika nhasi akanaka kana akatorwa kubva kune vanogadzira mhando.
6. Pane mavara ane mavara kana pigmented UV-anorapika?
Ehe, machira eruvara kana ane pigment anowanikwa nyore mumhando dzese dzeUV-anorapika majasi asi pane zvinhu zvekufunga nezvazvo kuti uwane mhedzisiro. Chinhu chekutanga uye chakakosha inyaya yekuti mamwe mavara anovhiringa kugona kwesimba reUV kuendesa mukati, kana kupinda mukati, iyo yakaiswa UV-inorapika coating. Iyo electromagnetic spectrum inoratidzwa muMufananidzo 1, uye zvinogona kuoneka kuti mwenje unooneka unobva wangotarisana neiyo UV spectrum. Iyo spectrum inoenderera isina mitsetse yakajeka (wavelengths) yekutema muganhu. Naizvozvo, dunhu rimwe rinosangana zvishoma nezvishoma kuita dunhu riri pedyo. Tichifunga nezvenzvimbo yechiedza inooneka, kune zvimwe zvesainzi zvinoti inotambanuka kubva pa400 nm kusvika pa780 nm, nepo zvimwe zvinoti inotangira pa350 nm kusvika 800 nm. Panhaurirano iyi, zvine basa chete kuti isu tizive kuti mamwe mavara anogona kuvharisa kutapurirana kwemamwe wavelengths eUV kana mwaranzi.
Sezvo tarisiro iri pane UV wavelength kana dunhu remwaranzi, ngationgororei iyo dunhu mune zvakadzama. Mufananidzo 2 unoratidza hukama huri pakati pewavelength yechiedza chinooneka uye ruvara runoenderana runoshanda pakuchivharira. Izvo zvakakoshawo kuziva kuti ma colorants anowanzo tambanudzira huwandu hwewavelengths zvekuti ruvara rutsvuku runogona kutora huwandu hwakati wandei zvekuti hunogona kutora chikamu munharaunda yeUVA. Naizvozvo, iwo mavara ekunyanya kunetseka achapfuura yero - orenji - tsvuku tsvuku uye aya mavara anogona kukanganisa kurapa kunoshanda.
Haisi chete ma colorants anokanganisa kurapa kweUV, zvakare ndeyekutarisisa kana uchishandisa machena mapendi ane pigmented, senge UV-anorapika primers uye topcoat pendi. Funga nezvekunyura kwewhite pigment titanium dioxide (TiO2), sezvinoratidzwa mumufananidzo 3. TiO2 inoratidza kunyura kwakasimba munzvimbo yese yeUV asi, machena, machira anorapika eUV anopora. Sei? Mhinduro inogara mukunyatso kugadzirwa nemugadziri wekupfekedza uye mugadziri mumubatanidzwa nekushandiswa kwemarambi eUV akakodzera kurapwa. Iwo akajairika, akajairwa mwenje weUV mukushandiswa anoburitsa simba sezvakaratidzwa mumufananidzo 4.
Mwenje wega wega unofananidzirwa wakavakirwa pamekiyuri, asi nekuita doping iyo mekiyuri neimwe simbi chinhu, kuburitsa kunogona kuenda kune mamwe matunhu akareba. Panyaya yeTiO2-yakavakirwa, chena, UV-inorapika coatings, simba rinounzwa neyakajairwa mercury rambi richavharika zvinobudirira. Mamwe epamusoro-soro mawavelengths akaunzwa anogona kupa kurapwa asi kureba kwenguva inodiwa kuti kurapa kuzere kunogona kusashanda. Nokuita doping mercury rambi ne gallium, zvisinei, kune simba rakawanda rinobatsira munharaunda isina kunyatsovharwa neTiO2. Kushandisa musanganiswa wemhando dzose dzemwenje, zvese kuburikidza nekurapa (uchishandisa gallium doped) uye kurapa kwepamusoro (uchishandisa standard mercury) zvinogona kuitwa (Mufananidzo 5).
Chekupedzisira, machira ane mavara kana ane pigmented UV-anorapika anoda kugadzirwa uchishandisa akanakisa mafotoinitiators kuitira kuti UV simba - rinooneka mwenje wavelength renji riri kuendeswa nemarambi - rishandiswe nemazvo kurapa kunoshanda.
Mimwe Mibvunzo?
Nezve chero mibvunzo inomuka, usambozeza kubvunza iye zvino kana weramangwana mutengesi wemakabati, zvishandiso uye maitiro ekudzora masisitimu. Mhinduro dzakanaka dziripo kubatsira kuita sarudzo dzinoshanda, dzakachengeteka uye dzine pundutso. u
Lawrence (Larry) Van Iseghem ndiye purezidhendi/Mukuru Mukuru weVan Technologies, Inc. Van Technologies ane makore anopfuura makumi matatu eruzivo rwemachira anorapika neUV, achitanga sekambani yeR&D asi yakashandurwa nekukurumidza kuita mugadziri weApplication Specific Advanced Coatings™ ichishanda muindasitiri coating. zvivako pasi rose. UV-anorapika machira agara ari ekutanga kutariswa, pamwe nehumwe "Green" tekinoroji yekupfekedza, nekusimbisa kwekuita kwakaenzana kana kupfuura kwakajairika matekinoroji. Van Technologies inogadzira rudzi rweGreenLight Coatings™ rwemaindasitiri machira maererano ne ISO-9001:2015 yakasimbiswa yemhando yekutonga system. Kuti uwane rumwe ruzivo, shanyawww.greenlightcoatings.com.
Nguva yekutumira: Jul-22-2023
