Twg filament zoo tshaj plaws rau 3D luam ntawv?
Cia peb saib cov khoom siv kho tshuab ua ntej. Lub zog tensile 31.9 ± 1.1 MPa, flexural modulus 1174 ± 64 MPa, qhov cuam tshuam toughness 5.1 ± 0.3 kJ / m² - cov ntsuas no yog nyob nruab nrab ntawm PLA thiab ABS, thiab nws tsis yog brittle li PLA thiab tsis yooj yim rau warp li ABS. Hauv lwm lo lus, nws tuaj yeem luam tawm "unbreakable" drone brackets thiab "non-deformable" industrial fixtures.
Tom qab ntawd saib lub qhov rai luam ntawv. Lub nozzle yog 230–250 °C, lub txaj kub yog 80–90 °C, thiab lub kiv cua tuaj yeem qis lossis kaw, uas txhais tau tias txawm tias cov tshuab luam ntawv qhib tuaj yeem tswj tau nws. Tsis muaj ntxhiab, tsis muaj kev thaiv, tsis muaj npuas, tsis muaj tus pib tshiab tuaj yeem khiav thawj txheej zoo nkauj ntawm lub tshuab thawj zaug.
Nyob rau theem daim ntawv thov, kev tsav dav hlau, tsheb, khoom ua si, cov cuab yeej, thiab kev luam ntawv hauv tsev yog txhua yam muaj peev xwm ua tau. Lub teeb yuag, kev tsim qauv sai, thiab kev tsim khoom raws li qhov xav tau yog nws cov txiaj ntsig tseem ceeb tshaj plaws. Piv nrog cov khoom siv hlau, PETG luam ntawv yog ib zaug molding, tshem tawm kev siv tshuab thiab vuam, thiab pov tseg yuav luag xoom.
Qhov ntsuas ib puag ncig tsis tuaj yeem tsis quav ntsej. PETG yog cov khoom siv rov ua dua tshiab thiab hlawv tsis muaj pa luam yeeb halogen; cov khoom sib dua kuj tseem tuaj yeem txo qhov kev siv roj ntawm tag nrho lub tsheb. Hauv kev kho mob, nws tau dhau qhov kev tshuaj xyuas thawj zaug ntawm cytotoxicity, thiab muaj chaw loj rau kev xav yav tom ntej rau kev luam tawm cov lus qhia phais thiab txawm tias cov stents organ.
Yog tias koj tsuas yog npaj yuav ib qho "jack of all trades" filament, Maijie PETG 1.75 hli tsim nyog muab tso rau hauv lub tawb nqa khoom. Qhov tseeb ntawm qhov ntev, qhov dav ntawm cov txheej txheem, thiab ob qho tib si lub zog thiab kev tawv ua rau lo lus "zoo tshaj plaws" tsis yog tsuas yog cov lus hais txog kev lag luam xwb, tab sis cov ntaub ntawv sim thiab cov lus tawm tswv yim ntawm lub chaw ua haujlwm.
Cov txiaj ntsig ntawm PETG rau ib puag ncig yog dab tsi?
Tus nqi ib puag ncig ntawm PETG tuaj yeem sau ua peb lo lus tseem ceeb ntawm "rov ua dua tshiab, tso pa phem tsawg, thiab tsis muaj tshuaj lom".
1. Kev sib raug zoo ntawm kev siv dua tshiab
PETG thiab PET yog tib tsev neeg polyester thiab tuaj yeem nkag mus rau hauv lub ntiaj teb PET rov ua dua tshiab yam tsis tas yuav cais ntxiv lossis cov txheej txheem tshwj xeeb. Tom qab rov ua dua tshiab, nws tseem tuaj yeem ua rau cov fibers, ntawv lossis cov ntim khoom tshiab kom ua tiav lub voj voog kaw thiab txo kev siv cov peev txheej.
2. Kev txo cov pa roj carbon hauv cov theem tsim khoom thiab siv
Piv nrog cov yas ib txwm muaj xws li PVC, PETG muaj qhov kub qis dua polymerization, tsis xav tau chlorine, txo kev siv hluav taws xob hauv cov txheej txheem tsim khoom, thiab tsis tsim cov khoom lom xws li dioxins. Daim ntawv pov thawj thib peb qhia tau tias kev siv ib txheej PETG los hloov cov ntim khoom sib xyaw ntau txheej tuaj yeem txo cov pa roj carbon ntawm ib daim ntau dua 30%.
3. Tsis muaj tshuaj lom thiab tsis ua rau muaj kev phom sij, kev ua tiav qhov kev nyab xeeb
PETG tsis muaj phthalates, cov hlau hnyav thiab halogens, thiab tsis tso cov pa roj acidic thaum hlawv; txawm tias nws ntws mus rau hauv xwm, nws yuav tsis leach cov plasticizers los ua kom cov av thiab dej qias neeg xws li PVC. Hauv cov xwm txheej rhiab heev xws li zaub mov thiab kev kho mob, nws txoj kev nyab xeeb tau dhau daim ntawv pov thawj qib sib cuag zaub mov hauv ntau lub tebchaws.
4. Kev txo qis pa phem ntxiv los ntawm kev tsim qauv sib dua
Kev tawv siab ua rau phab ntsa nyias dua, txo kev siv khoom siv raw los ntawm 5–15%; qhov hnyav txo qis hauv kev thauj mus los ua rau txo qis kev siv roj thiab cov pa roj av.
5. Lub peev xwm yav tom ntej
Txawm hais tias PETG nws tus kheej tsis yog biodegradable, kev lag luam tab tom tsim cov qauv compostable los ntawm kev ntxiv cov bio-based monomers lossis cov khoom siv tswj kev puas tsuaj kom sib npaug lub zog thiab kev siv kawg zoo rau ib puag ncig.