Waterborne (WB) UV chemistry egosila ọganihu dị ukwuu n'ime ahịa osisi ụlọ ọrụ mmepụta ihe n'ihi na nkà na ụzụ na-enye arụmọrụ dị mma, ihe mgbaze dị ala na ụbara mmepụta mmepụta ihe. Sistemụ mkpuchi UV na-enye onye ọrụ njedebe uru nke kemịkalụ pụrụ iche na nguzogide ọkọchị, nguzogide mgbochi dị mma, VOC dị ala na obere akara akụrụngwa nwere obere ohere nchekwa achọrọ. Sistemu ndị a nwere akụrụngwa na-atụnyere nke ọma na sistemu urethane nwere akụkụ abụọ na-enweghị nsogbu nke crosslinkers dị ize ndụ na nchegbu ndụ ite. N'ozuzu usoro na-eri irè n'ihi na ụba mmepụta ọsọ na ala ume efu. Otu uru ndị a nwere ike ịba uru maka ngwa mpụta nke ụlọ ọrụ etinyere gụnyere windo na ọnụ ụzọ, siding na ihe igwe ihe ndị ọzọ. Akụkụ ahịa ndị a na-ejikarị acrylic emulsions na polyurethane dispersions n'ihi na ha nwere ọmarịcha gloss na njigide agba, ma gosipụta ịdịte aka dị elu. N'ime ọmụmụ ihe a, a tụlere resins polyurethane-acrylic nwere ọrụ UV dị ka nkọwa ụlọ ọrụ si dị maka ngwa osisi mmepụta ihe na ime ụlọ.
A na-ejikarị ụdị ihe mkpuchi atọ nke ihe mgbaze eme ihe na ngwa osisi mmepụta ihe. Nitrocellulose lacquer bụ ngwakọta dị ala nke nitrocellulose na mmanụ ma ọ bụ alkyds sitere na mmanụ. Ihe mkpuchi ndị a na-ehicha ngwa ngwa ma nwee nnukwu ike gloss. A na-ejikarị ha eme ngwa ngwa ụlọ obibi. Ha nwere mwepu nke ịcha odo na oge ma nwee ike ịghachị. Ha na-enwekwa mmetụta kemịkal na-adịghị mma. Nitrocellulose lacquers nwere VOC dị elu, na-abụkarị 500 g / l ma ọ bụ karịa. Lacquers nke a na-ebute ụzọ bụ ngwakọta nke nitrocellulose, mmanụ ma ọ bụ alkyds nke mmanụ, plasticizers na urea-formaldehyde. Ha na-eji ihe na-eme ka acid na-adịghị ike dị ka butyl acid phosphate. Ihe mkpuchi ndị a nwere ndụ nchekwa ihe dịka ọnwa anọ. A na-eji ha eme ihe n'ọfịs, ụlọ ọrụ na arịa ụlọ. Ndị lacquers na-ebute ụzọ nwere ihe mgbochi kemịkalụ ka mma karịa lacquers nitrocellulose. Ha nwekwara nnukwu VOC. Ntugharị varnishes bụ ngwakọta nke alkyds mmanụ, urea formaldehyde na melamine. Ha na-eji ike acid catalyst dị ka p-toluene sulfonic acid. Ha nwere ndụ ite nke awa 24 ruo 48. A na-eji ha na kichin kichin, ngwá ụlọ ọrụ na ngwa ụlọ obibi. Ntugharị varnishes nwere ihe kacha mma nke ụdị atọ nke ihe mgbaze na-eji osisi eme ihe. Ha nwere nnukwu VOC na formaldehyde anwuru.
Mmiri dabeere na onwe-crosslinking acrylic emulsions na polyurethane dispersions nwere ike ịbụ magburu onwe uzo ozo ka ihe mgbaze dabeere na ngwaahịa maka ulo oru osisi ngwa. Acrylic emulsions na-enye ezigbo kemịkalụ na mgbochi mgbochi, ụkpụrụ isi ike dị elu, ịdịte aka pụtara ìhè na ihu igwe, yana mma mmachi n'elu ala na-adịghị agba. Ha nwere oge akọrọ ngwa ngwa, na-enyere kabinet, arịa ụlọ ma ọ bụ ndị na-emepụta ngwaahịa ụlọ aka ijikwa akụkụ ahụ ngwa ngwa mgbe ngwa ahụ gasịrị. PUDs na-enye ezigbo nguzogide abrasion, mgbanwe, na ọkọ na nguzogide mar. Ha bụ ezigbo ndị mmekọ ngwakọta na acrylic emulsions iji meziwanye akụrụngwa akụrụngwa. Ma acrylic emulsions na PUD nwere ike meghachi omume na crosslinking chemistries dị ka polyisocyanates, polyaziridine ma ọ bụ carbodiimides na-etolite 2K mkpuchi na mma Njirimara.
Ihe mkpuchi mmiri nke UV na-agwọta aghọwo nhọrọ ndị a ma ama maka ngwa osisi mmepụta ihe. Kitchen kabinet na ngwá ụlọ na-emepụta na-ahọrọ ndị a coatings n'ihi na ha nwere magburu onwe nguzogide na n'ibu Njirimara, magburu onwe ngwa Njirimara na nnọọ ala mgbaze umu anwuru. Ihe mkpuchi WB UV nwere ezigbo mgbochi mgbochi ozugbo a gwọchara ya, nke na-enye ohere ka etinye akụkụ ndị ahụ mkpuchi, kpokọta ma bupu ya ozugbo n'ahịrị mmepụta na-enweghị oge obibi maka mmepe siri ike. Mmepe ike siri ike na mkpuchi WB UV dị egwu ma na-eme na sekọnd. Ihe mkpuchi kemịkalụ na ntụpọ nke WB UV dị elu karịa nke varnishes ntụgharị dabere na mgbaze.
Ihe mkpuchi WB UV nwere ọtụtụ uru bara uru. Ọ bụ ezie na 100% - siri ike UV oligomers na-adịkarị elu na viscosity na a ga-eji mmiri na-emeghachi omume mee ka ọ dị nro, WB UV PUDs dị ntakịrị na viscosity, na viscosity nwere ike gbanwee ya na omenala WB rheology modifiers. WB UV PUD nwere ibu molikula dị elu na mbụ ma ha anaghị ewuli ịdị arọ molekụla ka ha na-agwọta nke ọma dịka mkpuchi UV siri ike 100%. N'ihi na ha nwere ntakịrị ma ọ bụ enweghị mbelata ka ha na-agwọ, WB UV PUDs nwere ezigbo nrapado na ọtụtụ mkpụrụ. A na-achịkwa gloss nke mkpuchi ndị a n'ụzọ dị mfe na ndị na-emepụta matting omenala. Ndị polymers ndị a nwere ike isi ike mana ha na-agbanwekwa nke ukwuu, na-eme ka ha bụrụ ezigbo ndị na-achọ maka mkpuchi osisi n'èzí.
Oge nzipu: Mar-07-2024
