Poly Lactic Acid polymer ne da aka samu ta hanyar yin polymerizing lactic acid a matsayin babban ɗanyen abu kuma sabon nau'in abu ne mai yuwuwa.Don haka,PLA yarnyarn ce mai dacewa da muhalli.
Akwai dalilin da ya sa mafi mashahuri kuma mafi yawan amfani da kayan bugu na 3D don firintocin FDM shine PLA.Idan aka kwatanta da sauran kayan, yana da sauƙin bugawa, wanda ya sa ya zama filament mai kyau ga masu son.Hakazalika, an yi imani da cewaFarashin PLAya fi dorewa da aminci fiye da sauran kayan.Daga ina wannan zato ya fito?Menene dorewar100% daidaitaccen muhalli PLA?Na gaba za mu mai da hankali kan batutuwan da suka shafi PLA.
1. Ta yaya ake samar da PLA?
PLA, wanda kuma aka sani da Poly Lactic Acid, ana samunsa daga albarkatun ƙasa masu sabuntawa kamar masara.Cire sitaci (glucose) daga tsire-tsire kuma canza shi zuwa glucose ta ƙara enzymes.Kwayoyin halitta suna tada shi zuwa lactic acid, wanda daga nan ya juya zuwa polylactide.Polymerization yana samar da sarƙoƙi na dogon lokaci na kwayoyin halitta waɗanda kaddarorinsu sun yi kama da na polymers na tushen man fetur.
2. Menene "PLA's biodegradable and compostable" yake nufi?
Sharuɗɗan "mai yuwuwa da takin zamani" da bambancinsu suna da mahimmanci kuma galibi ana rashin fahimta.Jan-Peter Willie ya yi bayani: “Mutane da yawa suna rikita “mai yiwuwa” da “taki.”A faɗin magana, “biodegradable” yana nufin cewa abu na iya zama ɓarna, yayin da “Compostable” yawanci yana nufin cewa wannan tsari zai haifar da takin.
Ƙarƙashin wasu yanayin anaerobic ko na motsa jiki, ana iya lalata kayan “biodegradable”.Koyaya, kusan dukkanin kayan zasu lalace tare da wucewar lokaci.Don haka, dole ne a fayyace ainihin yanayin muhallin da ba za a iya lalata su ba.Takin zamani tsari ne na wucin gadi.Dangane da ma'aunin Turai EN13432, idan a cikin watanni shida a cikin masana'antar takin masana'antu, aƙalla 90% na polymer ko marufi an canza su zuwa iskar carbon ta ƙwayoyin cuta, kuma matsakaicin abun ciki na ƙari shine 1%, polymer ko marufi shine dauke da "compostable".Asalin ingancin ba shi da lahani.Ko kuma za mu iya cewa a takaice: “Dukkan takin zamani ba zai yiwu ba, amma ba duk takin da ake yin takin ba ne”.
3. Shin zaren PLA da gaske yana da alaƙa da muhalli?
Lokacin inganta kayan PLA, ana amfani da kalmar "biodegradable" sau da yawa, wanda ke nuna cewa PLA, kamar datti na dafa abinci, na iya lalacewa a cikin takin gida ko yanayin yanayi.Sai dai kuma ba haka lamarin yake ba.Ana iya siffanta filament na PLA azamanfilament PLA mai lalata ta halitta, amma a ƙarƙashin ƙayyadaddun yanayi na takin masana'antu, a cikin wannan yanayin, ya fi dacewa a ce shi ne polymer biodegradable.Yanayin takin masana'antu, watau a gaban ƙananan ƙwayoyin cuta, sarrafa zafin jiki da zafi shine yanayin da ya zama dole don PLA ya zama mai lalacewa da gaske."Florent Port yayi bayani.Jan-Peter Willie ya kara da cewa: "PLA abu ne mai takin zamani, amma ana iya amfani da shi a masana'antar takin zamani."
Ƙarƙashin waɗannan sharuɗɗan takin masana'antu, PLA na iya lalacewa cikin kwanaki zuwa watanni.Zazzabi dole ne ya zama sama da 55-70ºC.Nicholas ya kuma tabbatar da cewa: "PLA za a iya lalata shi kawai a ƙarƙashin yanayin takin masana'antu."
4. Ko za a iya sake yin amfani da PLA?
A cewar masana uku, PLA da kanta za a iya sake yin fa'ida.Koyaya, tashar tashar Florent ta nuna: “A halin yanzu babu tarin sharar PLA na hukuma don bugu na 3D.A gaskiya ma, tashar sharar filastik na yanzu yana da wuyar bambanta PLA da sauran polymers (irin su PET (kwalban ruwa) "Saboda haka, a fasaha, PLA ana iya sake yin amfani da shi, muddin samfurin ya ƙunshi PLA kawai kuma ba a gurbata shi da wasu robobi ba. .”
5. Shin filament na masara PLA shine filament mafi dacewa da muhalli?
Nicolas Roux ya yi imanin cewa babu wata hanyar da za ta dore da gaske ga filament na masara, “Abin takaici, ban san ainihin koren filament na masara mai lafiya ba, ko za su fitar da barbashi a cikin ƙasa ko teku ko kuma za su iya lalata kansu.Ina tsammanin cewa lokacin zabar kayan, masana'antun sun fi son yin amfani da filaments tare da aminci mai dacewa a cikin hanyar da ta dace.
Jiayi's100% biodegradable PLA yarnya lashe baki daya yabo tsakanin abokan ciniki.Idan kana neman dacewa da yarn mai lalata da mutuntawa, zaku iya tuntuɓar mu
Lokacin aikawa: Oktoba-19-2022
