Izembozo ze-UV ezisebenza kahle kakhulu ezingelapheka ziye zasetshenziswa ekwenziweni kwephansi, ifenisha, kanye namakhabethe iminyaka eminingi. Esikhathini esiningi salesi sikhathi, izembozo ze-UV eziqinile futhi ezinyibilikayo ziye zaba ubuchwepheshe obuvelele emakethe. Eminyakeni yamuva nje, ubuchwepheshe bezembozo ze-UV ezingelapheka emanzini buye bakhula. Ama-resin asekelwe emanzini angelapheka emanzini abonakale eyithuluzi eliwusizo kubakhiqizi ngezizathu ezahlukahlukene, okuhlanganisa ukudlula ibala le-KCMA, ukuhlolwa kokumelana namakhemikhali, kanye nokunciphisa ama-VOC. Ukuze lobu buchwepheshe buqhubeke nokukhula kule makethe, abashayeli abaningana baye babonakala njengezindawo ezibalulekile lapho kudingeka kwenziwe khona ukuthuthukiswa. Lokhu kuzothatha ama-resin asekelwe emanzini angelapheka e-UV ngaphezu kokuba "nezinto okumele zibe khona" ama-resin amaningi anazo. Azoqala ukwengeza izakhiwo ezibalulekile ekwembozweni, alethe inani endaweni ngayinye ngeketanga lenani kusukela ku-formulator yezembozo kuya ku-applicator yefektri kuya ku-installer, futhi ekugcineni, kumnikazi.
Abakhiqizi, ikakhulukazi namuhla, bafisa ukugqoka okuzokwenza okungaphezu nje kokudlula izimfuneko. Kukhona nezinye izici ezinikeza izinzuzo ekukhiqizeni, ekupakisheni nasekufakeni. Esinye isici esifiselekayo ukuthuthukiswa kokusebenza kahle kwezitshalo. Ngokugqoka okusekelwe emanzini lokhu kusho ukukhululwa kwamanzi okusheshayo kanye nokumelana okusheshayo kokuvimba. Esinye isici esifiselekayo ukuthuthukisa ukuzinza kwe-resin ukuze kubanjwe/kusetshenziswe kabusha ukugqoka, kanye nokuphathwa kwempahla yabo. Kumsebenzisi wokugcina kanye nomfaki, izimfanelo ezifiselekayo ukumelana okungcono kokushiswa kanye nokungabikho kophawu lwensimbi ngesikhathi sokufakwa.
Lesi sihloko sizoxoxa ngentuthuko entsha kuma-polyurethane asekelwe emanzini alaphekayo e-UV anikeza ukuzinza kopende okuthuthukisiwe kakhulu okungu-50 °C ezimbozweni ezicacile, kanye nezinombala. Siphinde sixoxe ngendlela lawa ma-resin abhekana ngayo nezici ezifunwayo ze-coating applicator ekwandiseni isivinini somugqa ngokukhishwa kwamanzi okusheshayo, ukumelana kwamabhulokhi okuthuthukisiwe, kanye nokumelana kwe-solvent ngaphandle komugqa, okuthuthukisa isivinini sokubeka kanye nokusebenza kokupakisha. Lokhu kuzothuthukisa nomonakalo ongaphandle komugqa okwenzeka ngezinye izikhathi. Lesi sihloko sixoxa nangokuthuthuka okuboniswe ekumelaneni kwamabala kanye namakhemikhali okubalulekile kubafaki kanye nabanikazi.
Ingemuva
Isimo semboni yezingubo zokugqoka sihlala sishintsha. “Izinto okumele zibe khona” zokudlulisa nje imininingwane ngentengo efanelekile nge-mil ngayinye esetshenziswayo akwanele. Isimo sezingubo zokugqoka ezifakwe efektri kumakhabethe, e-joinery, phansi, kanye nefenisha sishintsha ngokushesha. Abenzi bezinto zokugqoka abahlinzeka ngezingubo zokugqoka emafektri bacelwa ukuba benze izingubo zokugqoka ziphephe kakhulu ukuze abasebenzi bazifake, basuse izinto ezikhathazayo kakhulu, bafake ama-VOC esikhundleni samanzi, futhi basebenzise ngisho ne-carbon encane kanye ne-bio carbon eningi. Iqiniso liwukuthi kulo lonke uchungechunge lwenani, ikhasimende ngalinye licela ingubo ukuthi yenze okungaphezu nje kokuhlangabezana nencazelo.
Sibona ithuba lokudala inani elengeziwe efektri, ithimba lethu laqala ukuphenya ezingeni lefektri ngezinselelo laba bafaki bezicelo ababebhekene nazo. Ngemva kwezingxoxo eziningi saqala ukuzwa izindikimba ezivamile:
- Ukuvumela izithiyo kuvimbela imigomo yami yokwandisa;
- Izindleko ziyanda futhi izabelomali zethu zenhloko-dolobha ziyancipha;
- Izindleko zamandla kanye nabasebenzi ziyanda;
- Ukulahlekelwa abasebenzi abanolwazi;
- Imigomo yethu ye-SG&A yenkampani, kanye neyamakhasimende ami, kumele ihlangatshezwe; futhi
- Ukuncintisana kwamanye amazwe.
Lezi zihloko ziholele ezitatimendeni zesiphakamiso senani ezaqala ukuzwakala kubantu abasebenzisa ama-polyurethane asekelwe emanzini alaphekayo e-UV, ikakhulukazi emakethe yokuhlanganisa kanye namakhabethe njengokuthi: “abakhiqizi bokuhlanganisa kanye namakhabethe bafuna ukuthuthukiswa kokusebenza kahle kwefektri” kanye “nabakhiqizi bafuna ikhono lokukhulisa umkhiqizo emigqeni yokukhiqiza emifushane ngomonakalo omncane wokulungisa kabusha ngenxa yokwembozwa okunezakhiwo zokukhipha amanzi kancane.”
Ithebula 1 libonisa ukuthi, kumenzi wezinto zokusetshenziswa zokumboza, ukuthuthukiswa kwezimfanelo ezithile zokumboza kanye nezakhiwo zomzimba kuholela ekusebenzeni kahle okungatholakala ngumsebenzisi wokugcina.
ITHEBULA 1 | Izimfanelo nezinzuzo.
Ngokuklama ama-PUD alaphekayo nge-UV anezimfanelo ezithile njengoba kubhalwe kuThebula 1, abakhiqizi abasebenzisa ekugcineni bazokwazi ukubhekana nezidingo abanazo ekuthuthukiseni ukusebenza kahle kwezitshalo. Lokhu kuzobavumela ukuthi bancintisane kakhudlwana, futhi mhlawumbe kubavumele ukuthi bandise umkhiqizo wamanje.
Imiphumela Yokuhlola kanye Nengxoxo
Umlando Wokuhlakazwa Kwe-Polyurethane Eyelapheka Nge-UV
Ngawo-1990, ukusetshenziswa kwezentengiselwano kwe-anionic polyurethane dispersions equkethe amaqembu e-acrylate anamathiselwe ku-polymer kwaqala ukusetshenziswa ezicelweni zezimboni.1 Eziningi zalezi zicelo zazisekupakishweni, kuyinki, kanye nasezimbozweni zokhuni. Isibalo 1 sibonisa isakhiwo esijwayelekile se-PUD elaphekayo ye-UV, esibonisa ukuthi lezi zinto zokusetshenziswa zokumboza zaklanywa kanjani.
ISITHOMBE 1 | Ukusabalala kwe-polyurethane okusebenzayo kwe-acrylate ejwayelekile.3
Njengoba kuboniswe kuMfanekiso 1, ukuhlakazwa kwe-polyurethane okulaphekayo kwe-UV (ama-PUD alaphekayo kwe-UV), akhiwe yizingxenye ezijwayelekile ezisetshenziselwa ukwenza ukuhlakazwa kwe-polyurethane. Ama-diisocyanates e-Aliphatic asabela ngama-ester ajwayelekile, ama-diols, amaqembu e-hydrophilization, kanye ne-chain extenders asetshenziswa ukwenza ukuhlakazwa kwe-polyurethane.2 Umehluko ukwengezwa kwe-acrylate functional ester, i-epoxy, noma ama-ether afakwe esinyathelweni se-pre-polymer ngenkathi kwenziwa ukuhlakazwa. Ukukhetha izinto ezisetshenziswa njengezitini zokwakha, kanye nokwakheka kwe-polymer kanye nokucubungula, kunquma ukusebenza kwe-PUD kanye nezici zokomisa. Lokhu kukhetha ezintweni zokusetshenziswa kanye nokucubungula kuzoholela kuma-PUD alaphekayo kwe-UV angaba angewona amafilimu, kanye nalawo abumba ifilimu.3 Ukwakheka kwefilimu, noma izinhlobo zokomisa, yisihloko salesi sihloko.
Ukwakheka kwefilimu, noma ukomisa njengoba kuvame ukubizwa kanjalo, kuzoveza amafilimu ahlanganisiwe omile uma uwathinta ngaphambi kokwelashwa kwe-UV. Ngenxa yokuthi abafaki bezicelo bafisa ukunciphisa ukungcoliswa koqweqwe oluvela emoyeni ngenxa yezinhlayiya, kanye nesidingo sesivinini enqubweni yabo yokukhiqiza, lokhu kuvame ukomiswa kumahhavini njengengxenye yenqubo eqhubekayo ngaphambi kokwelashwa kwe-UV. Isibalo 2 sibonisa inqubo evamile yokomisa nokwelapha ye-PUD elaphekayo ye-UV.
ISITHOMBE 2 | Inqubo yokwelapha i-PUD elaphekayo nge-UV.
Indlela yokufaka esetshenziswayo ngokuvamile iwukufafaza. Kodwa-ke, kuye kwasetshenziswa ummese phezu kokugoqa kanye nejazi eligcwele amanzi. Uma selisetshenzisiwe, ijazi livame ukudlula enkambisweni yezinyathelo ezine ngaphambi kokuba liphinde liphathwe.
1. I-Flash: Lokhu kungenziwa ekamelweni noma emazingeni okushisa aphezulu imizuzwana embalwa kuya kwemizuzu embalwa.
2. Ukomisa ihhavini: Yilapho amanzi kanye nezinyibilikisi ezikhishwa khona ephepheni. Lesi sinyathelo sibalulekile futhi sivame ukuchitha isikhathi esiningi enqubweni. Lesi sinyathelo sivame ukuba ku->140 °F futhi sihlala imizuzu efika kwengu-8. Amahhavini okomisa anezindawo eziningi nawo angasetshenziswa.
- Isibani se-IR kanye nokuhamba komoya: Ukufakwa kwezibani ze-IR kanye nabalandeli bokuhamba komoya kuzosheshisa ukukhanya kwamanzi ngokushesha okukhulu.
3. Ukwelashwa kwe-UV.
4. Ipholile: Uma isipholile, ingubo kuzodingeka iphole isikhathi esithile ukuze ifinyelele ukumelana nokuvimba. Lesi sinyathelo singathatha imizuzu eyi-10 ngaphambi kokuba kufinyelelwe ukumelana nokuvimba.
Okuhlolayo
Lolu cwaningo luqhathanise ama-PUD amabili alaphekayo e-UV (i-WB UV), asetshenziswa njengamanje emakethe yekhabhinethi kanye neyokujoyina, nentuthuko yethu entsha, i-PUD # 65215A. Kulolu cwaningo siqhathanisa i-Standard #1 kanye ne-Standard #2 ne-PUD #65215A ekomiseni, ekuvimbeni, nasekumelaneni namakhemikhali. Siphinde sihlole ukuzinza kwe-pH kanye nokuzinza kwe-viscosity, okungaba yinto ebalulekile uma sicabangela ukusetshenziswa kabusha kwe-overspray kanye nesikhathi sokuphelelwa yisikhathi. Okuboniswe ngezansi kuThebula 2 yizimpawu zomzimba ze-resin ngayinye esetshenziswe kulolu cwaningo. Zonke izinhlelo ezintathu zakhiwe ngezinga elifanayo le-photoinitiator, ama-VOC, kanye nezinga le-solids. Wonke ama-resin amathathu akhiwe nge-3% co-solvent.
ITHEBULA 2 | Izakhiwo ze-resin ye-PUD.
Ezingxoxweni zethu satshelwa ukuthi iningi lezingubo ze-WB-UV emakethe yokuhlanganisa kanye neyamakhabethe zomile emgqeni wokukhiqiza, okuthatha imizuzu emi-5-8 ngaphambi kokwelashwa kwe-UV. Ngokuphambene nalokho, umugqa we-UV osekelwe ku-solvent (SB-UV) womile ngemizuzu emi-3-5. Ngaphezu kwalokho, kule makethe, izingubo zivame ukufakwa emanzini angama-4-5 mils. Inkinga enkulu yezingubo ze-UV ezilaphekayo emanzini uma kuqhathaniswa nezinketho ze-UV ezisekelwe ku-solvent ezilaphekayo isikhathi esithathayo ukukhanyisa amanzi emgqeni wokukhiqiza.4 Amaphutha efilimu njengokubona okumhlophe azokwenzeka uma amanzi engakakhanyiswa kahle kusukela ekufakweni ngaphambi kokwelashwa kwe-UV. Lokhu kungenzeka futhi uma ubukhulu befilimu emanzi buphakeme kakhulu. Lawa mabala amhlophe adalwa lapho amanzi ebhajwa ngaphakathi kwefilimu ngesikhathi sokwelashwa kwe-UV.5
Kulolu cwaningo sikhethe ishejuli yokwelapha efana naleyo ezosetshenziswa emugqeni osekelwe ku-UV okwazi ukuphulukiswa. Isibalo 3 sibonisa ishejuli yethu yokusetshenziswa, ukomisa, ukwelapha, kanye nokupakisha esetshenziswa ocwaningweni lwethu. Lolu hlelo lokwelapha lumelela phakathi kokuthuthuka okungu-50% kuya ku-60% kwesivinini somugqa jikelele ngaphezu kwesilinganiso samanje semakethe ekusetshenzisweni kwemishini yokuhlanganisa kanye nekhabethe.
ISITHOMBE 3 | Uhlelo lokufaka, ukomisa, ukupholisa, kanye nokupakisha.
Ngezansi kunezimo zokusetshenziswa kanye nokwelapha esizisebenzise ocwaningweni lwethu:
●Fafaza nge-basecoat emnyama phezu kwe-maple veneer.
●I-flash yezinga lokushisa legumbi lemizuzwana engama-30.
●140 °F ihhavini elomile imizuzu engu-2.5 (ihhavini elinomoya obandayo).
●Ukwelashwa kwe-UV – amandla angaba ngu-800 mJ/cm2.
- Izembozo ezicacile zahlanzwa kusetshenziswa isibani se-Hg.
- Izembozo ezinombala zalungiswa kusetshenziswa isibani se-Hg/Ga esihlanganisiwe.
●Pholisa umzuzu owodwa ngaphambi kokufaka inqwaba.
Ocwaningweni lwethu siphinde safutha ugqinsi oluthathu oluhlukene lwefilimu emanzi ukuze sibone ukuthi ezinye izinzuzo ezifana noboya obuncane nazo zingatholakala yini. Ukumanzi okungu-4 mils kuyinto evamile ye-WB UV. Kulolu cwaningo siphinde safaka nezicelo zokumboza okumanzi okungu-6 no-8 mils.
Imiphumela Yokwelapha
Okujwayelekile #1, okumbozwe ngokucwebezelayo okucwebezelayo, imiphumela iboniswe kuMfanekiso 4. Ukumbozwa okucwebezelayo kwe-WB UV kwafakwa ebhodini le-fiberboard eliphakathi nendawo (i-MDF) elalimbozwe nge-basecoat emnyama futhi kwaqiniswa ngokwesheduli eboniswe kuMfanekiso 3. Kuma-millimitha angu-4 amanzi, ukumbozwa kuyadlula. Kodwa-ke, ekusetshenzisweni okumanzi kwe-millimitha angu-6 no-8, ukumbozwa kwaqhekeka, futhi ama-millimitha angu-8 asuswa kalula ngenxa yokukhishwa kwamanzi okungekuhle ngaphambi kokumiswa kwe-UV.
ISITHOMBE 4 | Isilinganiso #1.
Umphumela ofanayo ubonakala naku-Standard #2, eboniswe ku-Figure 5.
ISITHOMBE 5 | Isilinganiso #2.
Kuboniswe kuMfanekiso 6, kusetshenziswa isimiso esifanayo sokupholisa njengakuMfanekiso 3, i-PUD #65215A ibonise intuthuko enkulu ekukhishweni/ekomisweni kwamanzi. Ngobukhulu befilimu emanzi obuyi-8 mils, kwabonakala ukuqhekeka okuncane enqenqemeni elingezansi lesampula.
ISITHOMBE 6 | I-PUD #65215A.
Ukuhlolwa okwengeziwe kwe-PUD# 65215A embozweni ocacile ophansi kanye nopende onemibala phezu kwe-MDF efanayo ene-basecoat emnyama kuhlolwe ukuze kuhlolwe izici zokukhishwa kwamanzi kwezinye izinhlobo ezijwayelekile zopende. Njengoba kuboniswe kuMfanekiso 7, ukwakheka okukhanyayo okuphansi ekusetshenzisweni okumanzi okungu-5 no-7 mils kwakhipha amanzi futhi kwakha ifilimu enhle. Kodwa-ke, lapho kumanzi okungu-10 mils, kwakujiyile kakhulu ukukhulula amanzi ngaphansi kwesheduli yokomisa nokulungisa kuMfanekiso 3.
ISITHOMBE 7 | I-PUD ecwebezelayo ephansi #65215A.
Kufomula emhlophe enombala, i-PUD #65215A yenze kahle ohlelweni olufanayo lokomisa nokulungisa oluchazwe kuMfanekiso 3, ngaphandle uma lusetshenziswa kuma-mils angu-8 amanzi. Njengoba kuboniswe kuMfanekiso 8, ifilimu iyaqhekeka kuma-mils angu-8 ngenxa yokukhishwa kwamanzi okungekuhle. Sekukonke ekwakhiweni okucacile, okucwebezelayo, nokunombala, i-PUD# 65215A yenze kahle ekwakhiweni kwamafilimu nokomisa uma lusetshenziswa kufika kuma-mils angu-7 amanzi futhi lupholile ohlelweni lokusheshisa lokomisa nokulungisa oluchazwe kuMfanekiso 3.
ISITHOMBE 8 | I-PUD Enombala #65215A.
Imiphumela Yokuvimba
Ukumelana nokuvimba kuyikhono lengubo lokunganamatheli kwenye into emboziwe lapho ibekwe ndawonye. Ekukhiqizeni lokhu kuvame ukuba yisithiyo uma kuthatha isikhathi ukuthi ingubo eboshiwe ifinyelele ukumelana nokuvimba. Kulolu cwaningo, amafomula anombala we-Standard #1 kanye ne-PUD #65215A asetshenziswa engilazini kumamitha ayi-5 amanzi kusetshenziswa ibha yokudonsa. Lawa alungiswa ngokwesimiso sokupholisa kuMfanekiso 3. Amaphaneli amabili engilazi aboshwe alungiswa ngesikhathi esifanayo - imizuzu emi-4 ngemva kokulungiswa amaphaneli ahlanganiswa ndawonye, njengoba kuboniswe kuMfanekiso 9. Ahlala eboshwe ndawonye ekushiseni kwegumbi amahora angama-24. Uma amaphaneli ehlukaniswa kalula ngaphandle kokunyatheliswa noma ukulimala kwamaphaneli aboshwe khona-ke ukuhlolwa kwakubhekwa njengokudlula.
Isibalo 10 sibonisa ukumelana okuthuthukisiwe kokuvinjwa kwe-PUD# 65215A. Nakuba zombili i-Standard #1 kanye ne-PUD #65215A zithole ukwelashwa okugcwele esivivinyweni sangaphambilini, yi-PUD #65215A kuphela ebonise ukukhishwa kwamanzi okwanele kanye nokwelashwa okwanele ukuze kufezwe ukumelana nokuvinjwa.
ISITHOMBE 9 | Umfanekiso wokuhlolwa kokumelana nokuvimba.
ISITHOMBE 10 | Ukumelana nokuvimba kwe-Standard #1, kulandelwe yi-PUD #65215A.
Imiphumela Yokuxubana Kwe-Acrylic
Abakhiqizi bokumboza bavame ukuhlanganisa ama-resin e-WB alaphekayo nge-UV nama-acrylic ukuze kwehliswe izindleko. Ocwaningweni lwethu sibheke nokuxuba i-PUD#65215A ne-NeoCryl® XK-12, i-acrylic esekelwe emanzini, evame ukusetshenziswa njengomlingani wokuxuba ama-PUD asekelwe emanzini alaphekayo nge-UV emakethe yokuhlanganisa kanye namakhabethe. Kule makethe, ukuhlolwa kwamabala e-KCMA kubhekwa njengokujwayelekile. Kuye ngokusetshenziswa kokugcina, amanye amakhemikhali azoba abaluleke kakhulu kunamanye kumenzi wento embozwe. Isilinganiso esingu-5 singcono kakhulu kanti isilinganiso esingu-1 sibi kakhulu.
Njengoba kuboniswe kuThebula 3, i-PUD #65215A isebenza kahle kakhulu ekuhlolweni kwamabala e-KCMA njenge-gloss clear ecacile, i-low-gloss clear, kanye ne-pigmented coating. Ngisho noma ixutshwe ne-acrylic ngo-1:1, ukuhlolwa kwamabala e-KCMA akuthinteki kakhulu. Ngisho nasekufakweni kwamabala ngezinto ezifana ne-mustard, i-coating ibuyele ezingeni elamukelekayo ngemva kwamahora angu-24.
ITHEBULA 3 | Ukumelana namakhemikhali kanye namabala (isilinganiso esingu-5 singcono kakhulu).
Ngaphezu kokuhlolwa kwebala le-KCMA, abakhiqizi bazohlola futhi ukuthi liphilile yini ngokushesha ngemva kokuba i-UV iphelile. Ngokuvamile imiphumela yokuxuba i-acrylic izobonakala ngokushesha ngemva komugqa wokugcoba kulesi sivivinyo. Okulindelekile ukuthi kungabi nokuqhuma kokugqoka ngemva kokusebenzisa ama-isopropyl alcohol angu-20 kabili (20 IPA dr). Amasampula ahlolwa umzuzu owodwa ngemva kokwelashwa kwe-UV. Ekuhlolweni kwethu sibone ukuthi ingxube ye-PUD# 65215A engu-1:1 ene-acrylic ayizange iphumelele kulesi sivivinyo. Kodwa-ke, sibone ukuthi i-PUD #65215A ingaxutshwa ne-25% NeoCryl XK-12 acrylic futhi isaphumelela isivivinyo se-20 IPA dr (i-NeoCryl wuphawu lokuhweba olubhalisiwe lweqembu le-Covestro).
ISITHOMBE 11 | 20 Ukuhlikihla kabili kwe-IPA, umzuzu owodwa ngemva kokwelashwa kwe-UV.
Ukuzinza kwe-Resin
Ukuqina kwe-PUD #65215A nakho kwahlolwa. Ifomula ibhekwa njengezinzile eshalofini uma ngemva kwamasonto ama-4 ku-40 °C, i-pH ingaweli ngaphansi kuka-7 futhi i-viscosity ihlala izinzile uma iqhathaniswa neyokuqala. Ekuhlolweni kwethu sanquma ukufaka amasampula ezimweni ezinzima zamasonto afinyelela kwayi-6 ku-50 °C. Kulezi zimo i-Standard #1 ne-#2 zazingazinzile.
Ekuhlolweni kwethu sibheke amafomula acwebezelayo aphezulu, acwebezelayo aphansi, kanye namafomula anombala ocwebezelayo aphansi asetshenziswe kulolu cwaningo. Njengoba kuboniswe kuMfanekiso 12, ukuzinza kwe-pH kwazo zonke lezi zinhlobo ezintathu kwahlala kuzinzile futhi kungaphezu komkhawulo we-pH ongu-7.0. IMfanekiso 13 ibonisa ushintsho oluncane lwe-viscosity ngemva kwamasonto ayi-6 ku-50 °C.
ISITHOMBE 12 | ukuqina kwe-pH ye-PUD eklanyiwe #65215A.
ISITHOMBE 13 | Ukuqina kokuqina kwe-PUD eklanyiwe #65215A.
Olunye ukuhlolwa okubonisa ukusebenza kokuqina kwe-PUD #65215A kwakuwukuhlola futhi ukumelana kwamabala e-KCMA kwefomula yokumboza eseligugile amasonto ayi-6 ku-50 °C, nokuqhathanisa lokho nokumelana kwayo kwamabala e-KCMA kokuqala. Ukumboza okungabonisi ukuqina okuhle kuzobona ukwehla kokusebenza kwamabala. Njengoba kuboniswe kuMfanekiso 14, i-PUD# 65215A igcine izinga elifanayo lokusebenza njengoba yenza ekuhlolweni kokuqala kokumelana kwamakhemikhali/kwamabala kwengubo enemibala eboniswe kuThebula 3.
ISITHOMBE 14 | Amaphaneli okuhlola amakhemikhali e-PUD enombala #65215A.
Iziphetho
Kwabafakeli bezingubo zokugqoka ezisekelwe emanzini ezingelapheka nge-UV, i-PUD #65215A izobavumela ukuthi bahlangabezane nezindinganiso zokusebenza zamanje emakethe yokuhlanganisa, ukhuni kanye namakhabhinethi, futhi ngaphezu kwalokho, izokwenza inqubo yokugqoka ibone ukuthuthukiswa kwesivinini somugqa kube ngaphezu kuka-50-60% kunezingubo zamanje ezisekelwe emanzini ezingelapheka nge-UV. Kumfakisicelo lokhu kungasho ukuthi:
●Ukukhiqiza okusheshayo;
●Ukwanda kobukhulu befilimu kunciphisa isidingo sokufakwa kwezingubo ezengeziwe;
●Imigqa emfushane yokomisa;
●Ukonga amandla ngenxa yezidingo zokomisa ezinciphile;
●Ukuncipha kokungcola ngenxa yokumelana okusheshayo kokuvimba;
●Ukunciphisa imfucuza yokumboza ngenxa yokuqina kwe-resin.
Njengoba ama-VOC engaphansi kuka-100 g/L, abakhiqizi nabo bayakwazi ukufeza imigomo yabo ye-VOC. Kubakhiqizi abangase babe nokukhathazeka kokwandiswa ngenxa yezinkinga zezimvume, i-PUD #65215A ekhishwa ngokushesha izobasiza ukuthi bahlangabezane kalula nezibopho zabo zomthetho ngaphandle kokuzidela ekusebenzeni.
Ekuqaleni kwalesi sihloko sicaphune ezingxoxweni zethu ukuthi izinto ezisetshenziswayo zezinto ezisebenzisa i-UV ezisekelwe ku-solvent ngokuvamile zomisa futhi zilungise uqweqwe enkambisweni ethatha imizuzu emi-3-5. Sibonise kulolu cwaningo ukuthi ngokwenqubo eboniswe kuMfanekiso 3, i-PUD #65215A izolungisa ugqinsi lwefilimu emanzi olufika ku-7 mils ngemizuzu emi-4 ngokushisa kwehhavini okungu-140 °C. Lokhu kungaphakathi kwefasitela lezinto eziningi ezisebenzisa i-UV ezisekelwe kusolvent. I-PUD #65215A ingase ivumele izinto ezisetshenziswayo zamanje zezinto ezisebenzisa i-UV ezisekelwe kusolvent ukuthi zishintshele ezintweni ezisebenzisa i-UV ezisekelwe emanzini ngaphandle kokushintsha okuncane emgqeni wazo woqweqwe.
Kubakhiqizi abacabangela ukwanda komkhiqizo, izembozo ezisekelwe ku-PUD #65215A zizobasiza ukuthi:
●Yonga imali ngokusebenzisa umugqa omfushane wokumboza osekelwe emanzini;
●Kune-footprint encane yomugqa wokumboza endaweni;
●Kunethonya elincane emvumeni yamanje ye-VOC;
●Qaphela ukonga amandla ngenxa yezidingo zokomisa ezinciphile.
Ekuphetheni, i-PUD #65215A izosiza ekuthuthukiseni ukusebenza kahle kokukhiqiza kwemigqa yokumboza elaphekayo ye-UV ngokusebenzisa ukusebenza okuphezulu ngokomzimba kanye nezici zokukhipha amanzi ngokushesha kwe-resin uma yomisiwe ku-140 °C.
Isikhathi sokuthunyelwe: Agasti-14-2024
