Cov tshuaj reactive diluents (monomers)—feem ntau ua haujlwm nrog rau UV-curable oligomers—yog cov saw luv luv, ntau yam uas hloov pauv sai sai mus rau hauv cov tes hauj lwm tawv, ruaj khov nyob rau hauv lub teeb ultraviolet (UV) lossis electron beam (EB). Vim tias lawv yog cov kua nrog kev tswj hwm viscosity thiab ntau qhov chaw reactive, lawv cia koj kho qhov ceev kho, qhov nyuaj, kev ywj pheej, kev nplaum, thiab kev tiv thaiv tshuaj thaum khaws VOC qis.

Cov tshuaj diluent uas muaj reactive yog dab tsi?

Cov tshuaj reactive diluents nyob nruab nrab ntawm cov molecule me me thiab cov polymers ntev. Hauv UV/EB systems lawv ua haujlwm ua cov viscosity reducers (txo viscosity thaum tseem reacting rau hauv zaj duab xis) thiab crosslinkers (nce network density rau kev ua tau zoo). Cov tsev neeg tseem ceeb suav nrog di- thiab tri-acrylates xws li HDDA thiab TMPTA.

Yuav ua li cas UV / EB kho kom zoo

Cov Photoinitiators (UV) lossis lub zog EB ncaj qha tsim cov radicals uas qhib cov acrylate ob chav bonds ntawm koj cov monomers thiab oligomers. Cov saw hlau loj hlob thiab crosslink hauv milliseconds mus rau vib nas this, ua rau cov zaj duab xis khov kho nrog cov khoom tshwj xeeb. Tsis tas yuav ci, tsis tas siv zog ntau, thiab muaj txiaj ntsig zoo.

Cov kev pauv pauv loj ntawm vaj tse

Viscosity piv rau cov khoom khov: Cov monomers uas muaj viscosity qis (piv txwv li, HDDA) ua rau cov khoom khov thiab ntws ntau ntxiv yam tsis ntxiv cov kuab tshuaj.

● Kev kho sai dua piv rau kev tswj: Acrylates feem ntau kho sai heev, ua rau cov neeg tsim cov qauv tswj tau qhov ceev ntawm cov kab.

● Qhov ceev ntawm Crosslink piv rau qhov tawv: Tri-functional TMPTA ua rau muaj qhov tawv/kev tiv taus tshuaj lom neeg tab sis tuaj yeem ua rau brittleness thiab shrinkage; di-functionals (HDDA) pab sib npaug thiab muab kev ywj pheej.

● Kev nplaum thiab daj: HDDA yog ib qho khoom siv uas siv tau rau kev nplaum rau cov hlau/yas thiab kom tsis txhob daj; kev sib xyaw ua ke zoo pab kom tau txiaj ntsig zoo.

Xaiv cov oligomer zoo

● HDDA (1,6-hexanediol diacrylate): kho sai heev, tsis muaj viscosity, lo rau cov yas/hlau zoo, tsis muaj daj; sib npaug qhov ceev thiab kev ua haujlwm yooj yim.

● TMPTA (trimethylolpropane triacrylate): tri-functional crosslinker rau qhov siab tshaj plaws hardness, tiv taus cov kuab tshuaj, thiab kab ceev - siv kom zoo los tswj kev brittleness.

Cov ntawv thov tseem ceeb(thiab yuav ua li cas thiaj li xa lawv mus rau lwm qhov)

Cov tshuaj pleev xim & cov kua luam ntawv Siv cov monomer sib xyaw kom ntaus cov hom phiaj viscosity, throughput, thiab kev siv ntev.

● Lub hom phiaj tshwm sim: sai kho tau zoo, tso tau du, ua kom tawv/ua tshuaj lom neeg tsis kam, VOC tsawg.

● Cov kev xaiv ib txwm muaj: HDDA rau kev ceev / kev nplaum thiab qis daj; TMPTA kom thawb qhov nyuaj / kev tiv thaiv cov kuab tshuaj.

● Kev Tshawb Fawb tob: Lub hauv paus ntawm Cov Tshuaj Pleev Xim & Cov Kua Luam Ntawv

Cov nplaum thiab cov khoom siv foob

Hu rau lub sijhawm teeb tsa, lub zog, thiab qhov kub / kev ua haujlwm tshuaj lom neeg.

● Lub hom phiaj tshwm sim: teeb tsa sai, sib txuas ruaj khov rau cov hlau/PC/ABS, kev pabcuam ruaj khov.

● Cov kev xaiv ib txwm muaj: HDDA rau kev nqus dej thiab kev sib txuas sai nrog kev nplaum zoo rau cov khoom siv; TMPTA thaum koj xav tau lub zog ntsuab tam sim ntawd thiab qhov nyuaj kawg siab.

● Kev Tshawb Fawb tob: Lub hauv paus ntawm cov nplaum thiab cov khoom siv foob

Cov resins luam ntawv 3D thiab photolithography (SLA/DLP)

Kev daws teeb meem sib npaug, lub zog ntsuab, thiab cov txheej txheem kawg.

● Cov txiaj ntsig tau los: cov yam ntxwv zoo, kev poob qis uas kwv yees tau, kev kho qhov ruaj khov/HDT.

● Cov kev xaiv ib txwm muaj: HDDA kom txo qhov viscosity thiab txhim kho qhov tseeb ntawm kev luam ntawv; TMPTA kom ua kom qhov ruaj khov ntawm qhov loj tshaj plaws (sib tov kom tswj tau qhov brittleness).

● Kev kawm tob: 3D Printing & Photolithography hub

Kev Nyab Xeeb & kev ua raws cai

Ob qho tib si yog cov khoom ua rau tawv nqaij/ua pa tsis haum; siv hnab looj tes, tsom iav, thiab cua nkag. Xyuas kom meej tias daim ntawv lo thiab kev sau npe sib phim rau koj lub khw thiab tswj hwm QC zoo (viscosity, acid value, residual monomer, xim, gel fraction).