NaLawrence (Larry) Van Iseghem ndiye Mutungamiriri/Mukuru weVan Technologies, Inc.
Munguva yekuita bhizinesi nevatengi vemaindasitiri pasi rese, takapindura mibvunzo yakawanda uye takapa mhinduro dzakawanda dzine chekuita nekuputira UV kunorapika. Inotevera mimwe yemibvunzo inowanzo bvunzwa, uye mhinduro dziripo dzinogona kupa ruzivo runobatsira.
1. Chii chinonzi machira anorapika neUV?
Muindasitiri yekupedzisa huni, kune mhando nhatu huru dzemachira anorapika neUV.
Mapendi eUV anoshanda 100% (dzimwe nguva anonzi 100% zvinhu zvakasimba) mapendi eUV anorapika imakemikari emvura asina solvent kana mvura. Paanoiswa, pendi yacho inongoerekana yasangana nesimba reUV pasina chikonzero chekuoma kana kupwanyika isati yagadzirwa. Mapendi ekushandisa anogadzira pendi yakasimba kuburikidza nemaitiro anotsanangurwa uye anonzi photopolymerization. Sezvo pasina kupwanyika kunodiwa usati wagadzirwa, maitiro ekushandisa nekurapa anoshanda zvakanaka uye anodhura zvishoma.
Mapendi eUV anorapika nemvura kana kuti anonyungudika zvinosanganiswa nemvura zvine mvura kana zvinonyungudika kuderedza huwandu hwemvura (kana hwakasimba). Kudzikira uku kwehuwandu hwemvura kunobvumira nyore nyore kudzora ukobvu hwefirimu rakanyorova rinoshandiswa, uye/kana kudzora kusimba kwependi. Pakushandiswa, mapendi eUV aya anoiswa pamusoro pehuni nenzira dzakasiyana-siyana uye anofanira kuomeswa zvizere UV isati yapera.
Mapendi eupfu anorapika neUV akasimba zvakakwana uye anowanzoiswa kuma substrates anofambisa mhepo kuburikidza nekukwezvwa nemagetsi. Kana angoiswa, substrate inodziiswa kuti inyungudise upfu, hunobuda huchigadzira firimu repamusoro. Substrate yakaputirwa inogona kuiswa ipapo ipapo nesimba reUV kuti iite kuti iporeswe. Firimu repamusoro rinobuda harichachinji kana kuti harichanzwi kupisa.
Kune mhando dzakasiyana dzemachira aya anorapika neUV ane nzira yechipiri yekurapa (inoshanda pakupisa, inogadzirisa hunyoro, nezvimwewo) inogona kurapa munzvimbo dzisina simba reUV. Machira aya anowanzozivikanwa semachira anoporesa kaviri.
Pasinei nerudzi rwekuputira UV kunorapika kunoshandiswa, kupedzisa kwekupedzisira kwekumusoro kana layer kunopa hunhu hwakanaka, kugara kwenguva refu uye hunhu hwekudzivirira.
2. Mapendi anorapika neUV anonamira sei pamhando dzakasiyana dzematanda, kusanganisira mhando dzematanda ane mafuta?
Mapendi anorapika neUV anoratidza kunamira kwakanaka kumarudzi mazhinji emiti. Zvakakosha kuve nechokwadi chekuti pane mamiriro ekupisa akakwana kuti ape kuburikidza nekunamira uye kunamira kwakakodzera kune substrate.
Kune mhando dzakasiyana dzine mafuta akawanda uye dzingada kushandiswa kweprimer inosimudzira kunamira, kana kuti "tiecoat." Van Technologies yakaita tsvakiridzo yakakura uye budiriro mukunamira kweUV-repair coating kumhando idzi dzehuni. Zvichangobva kuitika zvinosanganisira chinhu chimwe chete chinonamira UV-repair sealer chinodzivirira mafuta, muto uye pitch kuti zvisakanganisa kunamira kweUV-repair topcoat.
Neimwe nzira, mafuta ari pamusoro pehuni anogona kubviswa nguva pfupi usati waisa pendi nekubvisa neacetone kana chimwe chinhu chakakodzera. Jira risina lint, rinonyungudutsa rinotanga ranyoroveswa nechinhu chacho uye rozopukutwa pamusoro pehuni. Pamusoro payo panobvumirwa kuti paome uye ipapo pendi inorapwa neUV inogona kuiswa. Kubviswa kwemafuta pamusoro pehuni nezvimwe zvinosvibisa kunoita kuti pendi inoiswa irambe yakanamatira pamusoro pehuni.
3. Ndeapi marudzi emarara anoenderana neUV coatings?
Chero mavara atsanangurwa pano anogona kuvharwa zvakanaka uye kuputirwa pamusoro ne100% UV-inorapika, UV-inorapika zvishoma nezvishoma, UV-inorapika mumvura, kana UV-inorapika. Nokudaro, kune misanganiswa yakawanda inoshanda inoita kuti chero mavara ari pamusika akwane chero mavara anorapika neUV. Zvisinei, kune zvimwe zvinhu zvinokosha kuti uve nechokwadi chekuti zvinoenderana nepamusoro pehuni.
Mavara Anobuda Mumvura uye Mavara Anorapika Anobva Mumvura:Pakuisa maUV anorapika neUV anorapika ne100%, anorapika neUV inorapika kana kuti anorapika neUV pamusoro pemavara anobuda mumvura, zvakakosha kuti mavara acho aome zvakakwana kudzivirira kusakwana kwemavara, kusanganisira ganda reorenji, mapete efisheyes, maburi emumakomba, kuungana pamwe chete uye madziro emvura. Kusakwana kwakadaro kunoitika nekuda kwekuderera kwekumanikidzwa kwemavara anorapika kana tichienzanisa nekumanikidzwa kwakanyanya kwemvura kubva pamavara anorapika.
Zvisinei, kushandisa pendi inorapika inoburitswa nemvura-UV kazhinji kunorerutsira. Vara rinoiswa rinogona kuratidza hunyoro pasina migumisiro yakaipa kana uchishandisa mamwe ma sealers/topcoats anorapika mumvura-UV. Hunyoro hwasara kana mvura inobva mukushandiswa kwemavara inopararira nyore nyore kuburikidza nependi inoburitswa mumvura-UV/topcoats panguva yekuomesa. Zvisinei, zvinokurudzirwa zvikuru kuti uedze chero musanganiswa wevara nependi/topcoats pane imwe sampuli yekuyedza usati waisa pamusoro chaipo pemvura kuti upedzwe.
Mavara Anobva Mumafuta Uye Anonyungudutsa:Kunyangwe paine sisitimu inogona kushandiswa pamavara asina kuomeswa zvakakwana anobva mumafuta kana kuti anonyungudutsa, zvinowanzo dikanwa, uye zvinokurudzirwa zvikuru, kuti uomese mavara aya zvizere usati waisa chero sealer/topcoat. Mavara aya anoomeswa zvishoma nezvishoma anogona kutora maawa anosvika makumi maviri nemana kusvika makumi mana nemasere (kana kupfuura) kuti aome zvakakwana. Zvakare, kuyedza sisitimu pamusoro pehuni inomiririra zvinokurudzirwa.
Mavara Anorapika 100% UV:Kazhinji, machira eUV anorapika 100% anoratidza kudzivirira kwakanyanya kwemakemikari nemvura kana anyatsopora. Kudzivirira uku kunoita kuti zviomere kuti machira eUV anonamira zvakanaka kunze kwekunge nzvimbo iri pasi yakacheneswa neUV yabviswa zvakakwana kuti ibvumire kubatana kwemuchina. Kunyangwe machira eUV anorapika 100% akagadzirwa kuti agamuchire machira eUV anorapika 100% akapihwa, machira mazhinji eUV anorapika 100% anofanira kubviswa kana kucheneswa zvishoma (zvinonzi "B" stage kana bump curing) kukurudzira kubatana kweintercoat. Kuisa "B" kunoguma nenzvimbo dzinosara dzinoita reactive mu stain layer dzichabatana neUV inorapika 100% sezvo inenge yapora zvizere. Kuisa "B" kunobvumirawo kubvisa zvinyoro nyoro kubvisa kana kucheka chero kukwira kwetsanga kunogona kuitika kubva pakuiswa kwetsvina. Kuisa chisimbiso chakapfava kana topcoat kunoguma nekunamatira kwakanaka kweintercoat.
Chimwe chinhu chinonetsa nezvemavara anorapika eUV 100% chine chekuita nemavara matema. Mavara ane ruvara rwakawanda (uye machira ane ruvara rwakawanda) anoita zvirinani kana uchishandisa marambi eUV anopa simba pedyo nechiedza chinoonekwa. Marambi eUV akajairwa akabatanidzwa negallium pamwe chete nemarambi emercury akajairika isarudzo yakanaka. Marambi eUV LED anoburitsa 395 nm uye/kana 405 nm anoshanda zvirinani nemasisitimu ane ruvara rwakafanana ne365 nm uye 385 nm arrays. Uyezve, masisitimu emarambi eUV anopa simba guru reUV (mW/cm2).2) uye kuwanda kwesimba (mJ/cm2) zvinokurudzira kupora kuri nani kuburikidza nekuisa ruvara kana kuti pendi yakapendwa.
Chekupedzisira, sezvakaita mamwe masisitimu emavara ataurwa pamusoro apa, bvunzo dzinokurudzirwa usati watanga nepamusoro pemavara chaiwo anofanirwa kupendwa uye kupedzwa. Iva nechokwadi usati wapora!
4. Ndeipi firimu yepamusoro/shoma inogadzirwa pa100% UV coating?
Mapendi eupfu anorapika neUV chaiwo i100% mapendi eUV anorapika neUV, uye ukobvu hwawo hunoganhurirwa nemasimba emagetsi anokwevera upfu pamusoro pechinhu chiri kupedzwa. Zvakanaka kubvunza mugadziri wependi dzeUV.
Nezvemachira emvura anorapika e100% UV, ukobvu hwefirimu rakanyorova huchaguma nehukobvu hwakafanana hwefirimu rakaoma mushure mekurapwa kweUV. Kumwe kudhonza hakudzivisiki asi kazhinji hakuna zvakunobatsira. Zvisinei, kune mashandisirwo ehunyanzvi anotsanangura kushivirira kwehukobvu hwefirimu hwakasimba kana hwakamanikana. Mumamiriro ezvinhu aya, kuyerwa kwefirimu rakanyorova zvakananga kunogona kuitwa kuti kuenzaniswe ukobvu hwefirimu rakanyorova nerakaoma.
Ukobvu hwekupedzisira hunogadziriswa hunogona kuwanikwa hunoenderana nemakemikari ejira rinorapwa neUV uye kuti rinogadzirwa sei. Kune masisitimu aripo akagadzirwa kuti ape zvidimbu zvefirimu zvakatetepa pakati pe0.2 mil - 0.5 mil (5µ - 15µ) uye mamwe anogona kupa ukobvu hunopfuura 0.5 inches (12 mm). Kazhinji, machira anorapwa neUV ane huwandu hwakanyanya hwe cross-link density, akadai semamwe ma urethane acrylate formulations, haakwanise kuita firimu rakakora muchikamu chimwe chete. Mwero wekupwanyika pakugadziriswa unokonzera kutsemuka kwakanyanya kwejira rakakora rakaiswa. Ukobvu hwakakura hwekuvaka kana hwekupedzisira hunogona kuwanikwa uchishandisa machira anorapwa neUV ane huwandu hwakawanda hwe cross-link density nekushandisa machira akawanda matete uye kusanganisa uye/kana "B" pakati pechikamu chimwe nechimwe kukurudzira kubatana kwe intercoat.
Nzira yekuporesa inodzorwa neUV yakawanda inonzi "free radical initiated." Iyi nzira yekuporesa inodzorwa neoxygen iri mumhepo iyo inononotsa kana kudzivirira kumhanya kwekuporesa. Kunonoka uku kunowanzonzi kudzikamisa okisijeni uye kwakakosha pakuedza kuwana ukobvu hwakatetepa. Mumafirimu matete, nzvimbo yepamusoro yehuwandu hwese hwepurasitiki yakaiswa yakakwira kana ichienzaniswa neukobvu hwefirimu yakakora. Nokudaro, ukobvu hwefirimu yakatetepa hunonyanya kukanganiswa nekudzikamisa okisijeni uye hunopora zvishoma nezvishoma. Kazhinji, pamusoro pekupedzisira hapachina kupora zvakakwana uye panoratidza kunzwa kwemafuta/mafuta. Kudzivirira kudzikamisa okisijeni, magasi asina simba akadai senitrogen necarbon dioxide anogona kupfuudzwa pamusoro penzvimbo panguva yekurapa kubvisa huwandu hweokisijeni, nokudaro zvichiita kuti iporeswe nekukurumidza.
5. Kupfeka kweUV kwakajeka kwakajeka zvakadii?
Mapendi eUV anorapika 100% anogona kuratidza kujeka kwakanaka uye anokwikwidzana nemapendi akajeka akanakisa muindasitiri. Pamusoro pezvo, kana akaiswa pamatanda, anounza runako rwakakura uye kudzika kwemufananidzo. Chinonyanya kufadza masisitimu akasiyana-siyana ealiphatic urethane acrylate akajeka zvinoshamisa uye asina ruvara kana akaiswa panzvimbo dzakasiyana-siyana, kusanganisira matanda. Uyezve, mapendi e aliphatic polyurethane acrylate akasimba uye anodzivirira kushata kweruvara nekukura. Zvakakosha kutaura kuti mapendi e low-gloss anoparadzira chiedza kupfuura mapendi e gloss uye nekudaro achava nekujeka kushoma. Zvichienzaniswa nemamwe machemistries e coating, zvisinei, mapendi e UV anorapika 100% akaenzana kana asiri nani.
Mapendi ekudzivirira anorapika nemvura-UV aripo panguva ino anogona kugadzirwa kuti ape kujeka kwakanaka, kudziya kwehuni uye kupindura kune anokwikwidzana nemasisitimu ekupedzisira akanakisa. Kujeka, kupenya, kupindura kwehuni uye zvimwe zvinhu zvinoshanda zvemapendi ekudzivirira anorapika eUV aripo pamusika nhasi zvakanaka kwazvo kana zvichibva kuvagadziri vemhando yepamusoro.
6. Pane mavara here kana kuti mavara eUV anorapika?
Ehe, machira ane ruvara kana ane pigment anowanikwa nyore nyore mumhando dzese dzemachira anorapika eUV asi pane zvinhu zvekufunga nezvazvo kuti uwane mhedzisiro yakanaka. Chinhu chekutanga uye chakakosha ndechekuti mamwe mavara anokanganisa kugona kwesimba reUV kuendesa mukati, kana kupinda, muchira chakashandiswa cheUV chinorapika. Electromagnetic spectrum inoratidzwa muMufananidzo 1, uye zvinogona kuonekwa kuti spectrum yechiedza chinoonekwa iri pedyo neUV spectrum. Spectramu iyi inoramba isina mitsetse yakajeka (wavelengths) yekuganhura. Saka, imwe nzvimbo inosangana zvishoma nezvishoma munzvimbo iri pedyo. Tichifunga nezvenzvimbo yechiedza chinoonekwa, kune zvimwe zvinotaurwa nesainzi zvekuti inopararira kubva pa400 nm kusvika pa780 nm, nepo zvimwe zvichiti inopararira kubva pa350 nm kusvika pa800 nm. Pakukurukurirana uku, zvakakosha chete kuti tizive kuti mamwe mavara anogona kudzivirira kutapurirana kwema wavelengths eUV kana mwaranzi.
Sezvo chinangwa chiri paUV wavelength kana nzvimbo yemwaranzi, ngationgororei nharaunda iyoyo zvakadzama. Mufananidzo wechipiri unoratidza hukama huripo pakati pewavelength yechiedza chinoonekwa neruvara rwakakodzera rwunoshanda mukudzivirira. Zvakakoshawo kuziva kuti zvinhu zvinopenda zvinowanzo tenderera mawavelengths akasiyana-siyana zvekuti dhayi dzvuku rinogona kukwirira zvakanyanya zvekuti rinogona kupinda muUVA. Nokudaro, mavara anonyanya kukosha achatenderera yero-orenji-tsvuku uye mavara aya anogona kukanganisa kuporeswa kunobudirira.
Zvinhu zvinopenda hazvingokanganisi chete kupenya kweUV chete, asiwo zvinofungwa nezvazvo pakushandisa machira machena ane pigment, akadai sema primer anorapika eUV uye mapendi etopcoat. Funga nezvemhando yekunyudzwa kwepigment chena titanium dioxide (TiO2), sezvakaratidzwa muMufananidzo 3. TiO2 inoratidza kunyudzwa kwakasimba munzvimbo yese yeUV asi machira machena anorapika eUV anorapika zvinobudirira. Sei? Mhinduro yacho iri mukugadzirwa kwakanyatsogadzirwa nemugadziri wemachira uye mugadziri pamwe nekushandiswa kwemarambi eUV akakodzera ekurapa. Marambi eUV akajairika, anoshandiswa anoburitsa simba sezvakaratidzwa muMufananidzo 4.
Mwenje wega wega unoratidzwa wakavakirwa pa mercury, asi nekuisa mercury mune chimwe chinhu chesimbi, kuburitsa kwemhepo kunogona kuchinjirwa kune dzimwe nzvimbo dze wavelength. Panyaya yeTiO2-based, chena, inorapika UV, simba rinounzwa nemwenje we mercury wakajairwa richavharwa zvinobudirira. Mamwe ma wavelengths akakwirira anopiwa anogona kupa mushonga asi nguva inodiwa kuti uchene zvizere ingasashanda. Nekuisa gallium mumwenje we mercury, zvisinei, kune simba rakawanda rinobatsira munzvimbo isina kuvharwa zvinobudirira neTiO2. Kushandisa musanganiswa wemhando dzese dzemwenje, zvese kuburikidza ne cure (kushandisa gallium doped) uye surface cure (kushandisa standard mercury) kunogona kuitwa (Mufananidzo 5).
Chekupedzisira, machira eUV anorapika ane ruvara kana ruvara anofanira kugadzirwa uchishandisa ma photoinitiators akanakisa kuitira kuti simba reUV - huwandu hwemwenje unoonekwa huri kuburitswa nemarambi - rishandiswe nemazvo kuti rishande zvakanaka.
Mimwe Mibvunzo?
Kana paine mibvunzo inomuka, usazeza kubvunza kambani iri kupa machira, michina uye masisitimu ekudzora maitiro ekugadzira machira. Mhinduro dzakanaka dziripo kuti dzibatsire kuita sarudzo dzinoshanda, dzakachengeteka uye dzinobatsira.
Lawrence (Larry) Van Iseghem ndiye purezidhendi/CEO weVan Technologies, Inc. Van Technologies vane ruzivo rwemakore anopfuura makumi matatu mukugadzira machira anorapika eUV, vakatanga sekambani yeR&D asi vakachinja nekukurumidza kuita mugadziri weApplication Specific Advanced Coatings™ inoshandira nzvimbo dzekuputira maindasitiri pasi rese. Machira anorapika eUV agara ari chinhu chikuru, pamwe chete nemamwe matekinoroji e "Green" coating, vachisimbisa mashandiro akaenzana kana kupfuura matekinoroji echinyakare. Van Technologies inogadzira GreenLight Coatings™ brand yezvigadzirwa zveindasitiri zvichienderana neISO-9001:2015 certified quality management system. Kuti uwane rumwe ruzivo, shanyirawww.greenlightcoatings.com.
Nguva yekutumira: Chikunguru-22-2023
