Polyhydroxyalkanoate PHA

Polyhydroxyalkanoate, wanda aka rage wa suna PHA, kalma ce ta gabaɗaya ga nau'in polyesters masu nauyin ƙwayoyin halitta waɗanda ƙananan halittu suka haɗa. Ana yin PHA ne daga masara, dankali da sauran biomass ko cellulose na bambaro da aka yi da sitaci a matsayin kayan da aka ƙera, an ƙera shi don samar da lactic acid, sannan aka ƙara tsarkake shi kuma aka ƙera shi don shirya PLA mai tsarki, wanda ba shi da guba ga muhalli, ba shi da guba, yana kashe ƙwayoyin cuta, yana hana harshen wuta kuma yana da kyau a bi da shi.

Tsarin gyaran allurar PHA, matakin blister, matakin busawa, matakin kumfa, da sauran kayan da za a iya lalata su gaba ɗaya a duk faɗin layin. PHAs nau'in kayan polyhydroxyalkanoates ne (PHA), wanda shine kayan biopolymer wanda aka haɗa kai tsaye ta hanyar fermentation na ƙwayoyin cuta a cikin ƙananan halittu. PHAs suna da manyan halaye masu daraja kamar biocompatibility, biodegradability, da piezoelectric properties. Suna da kyawawan halaye na amfani da sarrafawa, kuma halayensu na asali sun yi kama da polypropylene. Ana iya sarrafa su kuma a ƙera su ta amfani da kayan aikin sarrafa filastik na gargajiya kamar ƙera allura, extrusion, busawa fim, zana waya, da ƙera su, kuma suna iya maye gurbin yawancin robobi masu tushen mai. Ana iya sarrafa ƙimar biodegradation na PHAs ta hanyar abubuwan da ke cikin copolymers ɗinsu bisa ga buƙatun aikace-aikace daban-daban.