Ma diluents oyambitsa mphamvu (ma monomers)—nthawi zambiri amagwira ntchito limodzi ndi ma oligomer ochiritsika ndi UV—ndi maunyolo afupiafupi, ogwira ntchito zambiri omwe amasanduka mwachangu kukhala maukonde olimba komanso olimba pansi pa kuwala kwa ultraviolet (UV) kapena kuwala kwa electron (EB). Chifukwa ndi zakumwa zokhala ndi kukhuthala kolamulidwa komanso malo ambiri ogwirira ntchito, zimakulolani kusintha liwiro la kuchiritsa, kuuma, kusinthasintha, kumamatira, ndi kukana mankhwala pamene mukusunga VOC yochepa.

Kodi mankhwala ochepetsa mphamvu ya reactive ndi chiyani?

Zosakaniza zoyambitsa mphamvu zimakhala pakati pa mamolekyu ang'onoang'ono ndi ma polima aatali. Mu machitidwe a UV/EB amagwira ntchito ngati zochepetsera kukhuthala (kuchepetsa kukhuthala pamene zikugwirabe ntchito mu filimuyi) ndi ma crosslink (kukweza kuchuluka kwa maukonde kuti agwire ntchito). Mabanja wamba apakati amaphatikizapo ma di- ndi ma tri-acrylates monga HDDA ndi TMPTA.

Momwe kuyeretsa kwa UV/EB kumagwirira ntchito

Ma Photoinitiators (UV) kapena mphamvu ya EB yolunjika amapanga ma radicals omwe amatsegula ma acrylate double bond pa ma monomers ndi ma oligomers anu. Maunyolo amakula ndi kulumikizana mkati mwa ma milliseconds mpaka masekondi, zomwe zimapangitsa kuti filimu ikhale yolimba yokhala ndi zinthu zomwe zimafunidwa. Palibe chophika chofunikira, mphamvu yochepa, komanso mphamvu zambiri.

Kusinthanitsa kwakukulu kwa malo

Kukhuthala poyerekeza ndi zinthu zolimba: Ma monomers otsika kukhuthala (monga HDDA) amawonjezera zinthu zolimba ndi kuyenda popanda kuwonjezera zosungunulira.

● Liwiro la mankhwala poyerekeza ndi kulamulira: Ma Acrylates nthawi zambiri amachiritsa mofulumira kwambiri, zomwe zimapatsa opanga mankhwala mphamvu yolamulira liwiro la mzere.

● Kuchulukana kwa Crosslink vs. kulimba: TMPTA yogwira ntchito zitatu imayendetsa kuuma/kukana mankhwala koma imatha kukulitsa kufooka ndi kuchepa; ma di-functional (HDDA) amathandiza kulinganiza ndikupereka kusinthasintha.

● Kumatirira ndi chikasu: HDDA ndi njira yabwino kwambiri yomatirira zitsulo/pulasitiki ndi chikasu chochepa; kusakaniza mwanzeru kumathandiza kukonza zotsatira.

Kusankha oligomer yoyenera

● HDDA (1,6-hexanediol diacrylate): imachira mwachangu kwambiri, imakhuthala pang'ono, imamatira kwambiri ku pulasitiki/zitsulo, imasiya chikasu pang'ono; imachepetsa liwiro ndi kukonzedwa.

● TMPTA (trimethylolpropane triacrylate): cholumikizira cha tri-functional chothandizira kulimba kwambiri, kukana zosungunulira, ndi liwiro la mzere—gwiritsani ntchito mosamala kuti muchepetse kusweka.

Mapulogalamu ofunikira(ndi momwe mungawagwiritsire ntchito)

Zophimba ndi inki zosindikizira Gwiritsani ntchito zosakaniza za monomer kuti mukwaniritse zolinga za kukhuthala, mphamvu yogwiritsira ntchito, komanso kulimba kwa ntchito.

● Zotsatira za cholinga: mwachangu kuchiritsa, kukhazikika bwino, kuuma kwambiri/kukana mankhwala, VOC yochepa.

● Zosankha zachizolowezi: HDDA yothandiza kuthamanga/kumatira komanso chikasu chochepa; TMPTA yolimbikitsira kulimba/kukana zosungunulira.

● Kusambira mozama: Zophimba ndi malo osindikizira inki

Zomatira ndi zotsekera

Imani nthawi yogwiritsira ntchito, mphamvu, ndi kutentha/kagwiridwe kake ka mankhwala.

● Zotsatira za cholinga: kukhazikitsa mwachangu, zomangira zolimba pa zitsulo/PC/ABS, ntchito yolimba.

● Zosankha zachizolowezi: HDDA yolumikizira ndi chogwirira chachangu chokhala ndi chogwirira champhamvu; TMPTA pamene mukufuna mphamvu yobiriwira nthawi yomweyo komanso kulimba kwakukulu komaliza.

● Kusambira mozama: Zomatira ndi malo otsekera

Ma resins osindikizira a 3D ndi photolithography (SLA/DLP)

Kusasintha kwabwino, mphamvu yobiriwira, ndi makina omaliza.

● Zotsatira za cholinga: mawonekedwe abwino, kuchepa koyembekezereka, kuuma kokonzedwa/HDT.

● Zosankha zachizolowezi: HDDA yochepetsera kukhuthala ndikuwongolera kukhulupirika kwa zosindikiza; TMPTA yokulitsa kukhazikika kwa miyeso (kuphatikiza kuti kukhale kolimba).

● Kusambira mozama: Malo osindikizira a 3D & Photolithography

Chitetezo ndi kutsatira malamulo

Zonsezi ndi zoziziritsa khungu/kupuma; gwiritsani ntchito magolovesi, magalasi a maso, ndi mpweya wopumira. Onetsetsani kuti zilembo ndi kulembetsa zili bwino pamsika wanu ndipo sungani QC yolimba (kukhuthala, asidi, monomer yotsalira, mtundu, gel fraction).