Polyhydroxyalkanoate (PHA), intracellular polyester yakagadzirwa neakawanda tupukanana, ndeye yakasikwa polymer biomaterial.
Mumasero ehutachiona, kunyanya mabhakitiriya masero, kune nhamba huru yepolymer polyesters - Polyhydroxyalkanoates (PHA).Iyi ndiyo yakasikwa polymer biomaterial.Izvo hazvireve zvakananga kune imwe polymer, asiizwi rakajairwa rekirasi yemapolymer ane zvimiro zvakafanana uye akasiyana zvimiro.
PHA yakamboita ruzivomatanho mana ebudiriro.
Chizvarwa chekutanga chePHA, polyhydroxybutyrate (PHB), chakagadzirwa-zhinji neChemie Linz AG muAustria muma1980s (pagore kubuda kwematani zana).Seyekutanga kuwanikwa PHA akatevedzana zvinhu, PHB zvakare iri nyore uye yakajairika chimiro mumhuri yePHA.Iyo ine yakakwirira hurongwa hwekugara, yakaoma uye brittle zvimiro, uye yayo mechanical zvimiro uye kunyungudika kwakafanana ne polypropylene (PP);asi elongation panguva yekuzorora Low rate, high brittleness.Naizvozvo, PHB kazhinji haigone kushandiswa sechinhu chimwe chete uye inoda kugadziridzwa kuti iite inoshanda.
Chizvarwa chechipiri chePHA, polyhydroxybutyric acid copolyester (PHBV), yakatengeswa neICI muma1980.PHBV iPHA copolymer ine huremu hwemamorekuru hunodarika 300,000.PHBV, sekuvandudza kune yekutanga-chizvarwa chigadzirwa PHB, yakavandudza zvakanyanya kusimba kwayo mushure mekuwedzera 3-hydroxyvalerate (3HV) monomer.Nekuti inogona kuora zvachose mucompost, ivhu, mvura yegungwa nedzimwe nharaunda, ine zvakare yakanaka biocompatibility uye yakakwirira chipingamupinyi kuita kune zvinwiwa nemagasi, zvichiita kuti PHBV ive yakanaka yehuinjiniya yemunhu kugadzira sutures yekurapa.waya, zvipikiri zvemapfupa, nezvimwewo, uye inogona kushandiswa semurimi wekurima,mabhegi ekutenga, tableware uye chikafu chekuisa zvinhu.Parizvino, maitiro ekugadzira ezvigadzirwa zvePHBV akagadziridzwa zvakare, uye akaiswa mumatireyi egorofu,zvinoraswa tableware, mafirimu, mahwendefa, kurongedza uye mamwe minda.
Chizvarwa chechitatu chePHA-poly 3-hydroxybutyrate-3-hydroxyhexanoate (PHBHHx), kubvira 1998, Tsinghua University Microbiology Laboratory uye Guangdong Jiangmen Biotechnology Development Center vakabudirira kugadzira hydroxybutyric acid kekutanga munyika. PHBHHx ine hydroxycaproic acid, uye inoona kugadzirwa kwakakura.Kana ichienzaniswa nePHBV, PHBHHx ine yakaderera crystallinity uye yakakwirira ductility, uye kuita kwayo kunofananidzwa neye polyethylene (PE) mapurasitiki.
Yechina-chizvarwa PHA-copolymer yepoly-3-hydroxybutyrate uye 4-hydroxybutyrate (P3HB4HB kana P34HB), ine yakanaka yekugadzira firimu zvinhu uye hunhu hwemuviri, asi hurombo hydrophilicity.Yechina-chizvarwa PHA yakaratidza yakanaka tarisiro yekushandisa mumunda wetishu engineering research, senge scaffold zvinhu mubhonzo tishu engineering kurodha mapfupa emunhu mesenchymal stem masero, nezvimwe, nezvimwe.
Nekuti PHA ine yakanaka biocompatibility, biodegradability uye thermal processing performance yemapurasitiki panguva imwe chete.Naizvozvo, inogona kushandiswa sebiomedical zvinhu uyebiodegradable packaging zvinhupanguva imwe chete, iyo yave yakanyanya kushingaira tsvakurudzo hotspot mumunda we biomaterials mumakore achangopfuura.PHA zvakare ine akawanda akakwira kukosha-akawedzera zvivakwa senge nonlinear optics, piezoelectricity, uye gasi barriers zvivakwa.
WorldChamp Enterprisesichave yakagadzirira nguva dzese kugovera iyoECO zvinhukune vatengi vanobva kumativi ese enyika,compostable girovhosi, mabhegi egirosari, bhegi rekubuda, bhegi remarara,cutlery, food service ware, nezvimwewo.
WorldChamp Enterprises mudiwa wako wepamoyo kushandisa zvigadzirwa zveECO, dzimwe nzira dzezvigadzirwa zvepurasitiki zvechinyakare, kudzivirira kusvibiswa chena, kuita kuti gungwa redu nepasi zvive zvakachena uye zvakachena.
Nguva yekutumira: Feb-10-2023