Ifihan kukuru ti PLA

Nipa PLA

PLA, tun mọ bi polylactide, jẹ polyester polymerized lati lactic acid.Polylactic acid ni biodegradability ti o dara julọ, ibamu ati gbigba.O jẹ ohun elo polima sintetiki ti kii ṣe majele, ti kii rritating.Awọn ohun elo aise rẹ jẹ lactic acid, eyiti o wa ni akọkọ lati bakteria ti sitashi, gẹgẹbi agbado ati iresi.O tun le gba lati cellulose, idoti ibi idana ounjẹ tabi egbin ẹja.

PLA ni ọpọlọpọ awọn ohun elo aise, ati pe awọn ọja ti a ṣe lati inu rẹ le jẹ idapọ taara tabi incinerated, eyiti o le pade awọn ibeere ti idagbasoke alagbero.Atọka ti o dara ati lile diẹ, biocompatibility ati resistance ooru ti PLA jẹ awọn idi akọkọ fun ohun elo ibigbogbo.

Ni afikun, PLA ni thermoplasticity ati pe o le lo si ọpọlọpọ awọn aaye, gẹgẹbi awọn ohun elo apoti, awọn okun, ati bẹbẹ lọ. O jẹ lilo fun awọn nkan isọnu gẹgẹbi awọn ohun elo tabili isọnu ati awọn ohun elo apoti, ati awọn ohun elo itanna ati itọju iṣoogun.
Ti a ṣe afiwe pẹlu awọn ọja petrokemika ibile, agbara agbara ni iṣelọpọ ti polylactic acid jẹ 20% si 50% ti awọn ọja petrokemika, ati erogba oloro ti a ṣejade jẹ 50% ti awọn ọja petrokemika nikan.Nitorinaa, idagbasoke ti awọn ohun elo ibajẹ polylactic acid jẹ pataki lati dinku ayika agbaye ati awọn iṣoro agbara.

Awọn ẹya ara ẹrọ tiPLA
1. Biodegradability
Ti a ṣe afiwe pẹlu awọn pilasitik ibile, polylactic acid le dinku si CO2 ati H2O nipasẹ awọn microorganisms ati ina.Awọn ọja ibajẹ rẹ kii ṣe majele ati laiseniyan, ati pe kii yoo ba agbegbe jẹ.Awọn monomer fun iṣelọpọ polylactic acid jẹ lactic acid, eyiti o le jẹ fermented nipasẹ awọn irugbin bi alikama, iresi ati beet suga tabi awọn ọja nipasẹ-ogbin.Nitorinaa, ohun elo aise fun iṣelọpọ polylactic acid jẹ isọdọtun.Polylactic acid gẹgẹbi ohun elo biodegradable ti n yọ jade jẹ lilo pupọ.
2. Biocompatibility ati Absorbability
Polylactic acid le jẹ hydrolyzed nipasẹ acid tabi henensiamu lati ṣe agbekalẹ lactic acid ninu ara eniyan.Gẹgẹbi metabolite ti awọn sẹẹli, lactic acid le jẹ iṣelọpọ siwaju sii nipasẹ awọn enzymu ninu ara, lati ṣe agbekalẹ CO2 ati H2O.Nitorinaa, polylactic acid kii ṣe majele ati laiseniyan si ara eniyan, pẹlupẹlu o ni biocompatibility ti o dara ati bioabsorbability.Polylactic acid jẹ ifọwọsi nipasẹ Ile-iṣẹ Ounje ati Oògùn AMẸRIKA ti o le ṣee lo bi ohun elo biomaterial fun dida sinu eniyan

3. Ti ara Machinable
Gẹgẹbi ohun elo polymer thermoplastic, polylactic acid ni ṣiṣu ti o dara ati awọn ohun-ini iṣelọpọ ti ara, pẹlu aaye yo giga ati crysallinity, elasticity ti o dara ati irọrun, ati thermoformability ti o dara julọ.Awọn ohun elo acid Polylactic, bii awọn ohun elo polima gẹgẹbi polypropylene (PP), polystyrene (PS), ati polyphenylene ether resin (PPO), le jẹ ṣiṣe nipasẹ extrusion, ninwọn, ati mimu fifun abẹrẹ.