Polyhydroxyalkanoate (PHA), polyester intracellular mebere site na ọtụtụ microorganisms, bụ polymer biomaterial eke eke.
Na mkpụrụ ndụ microbial, karịsịa mkpụrụ ndụ nje, enwere ọnụ ọgụgụ buru ibu nke polyesters polymer - Polyhydroxyalkanoates (PHA).Nke a bụ polymer biomaterial eke.Ọ naghị ezo aka kpọmkwem na polymer ụfọdụ, maokwu n'ozuzu maka otu klas nke polymers nwere ihe ndị yiri ya na ihe dị iche iche.
PHA ahụtala nke ọmaakụkụ anọ nke mmepe.
Ọgbọ mbụ nke PHA, polyhydroxybutyrate (PHB), bụ nke Chemie Linz AG mepụtara na Austria na 1980s (mpụta kwa afọ nke 100 tọn).Dịka ihe usoro usoro PHA achọpụtara na mbụ, PHB bụkwa usoro kachasị mfe na nke a na-ahụkarị na ezinụlọ PHA.Ọ nwere usoro nhazi dị elu, ihe siri ike na nke na-adịghị ike, na ihe eji arụ ọrụ ya na ebe mgbaze ya yiri polypropylene (PP);ma elongation na nkwụsịtụ dị ala, nnukwu brittleness.Ya mere, enweghị ike iji PHB mee ihe dị ka otu ihe ma ọ dị mkpa ka a gbanwee ya iji nweta arụmọrụ ọdabara.
Ọgbọ nke abụọ nke PHA, polyhydroxybutyric acid copolyester (PHBV), bụ nke ICI mere ahịa na 1980s.PHBV bụ onye copolymer PHA nwere arọ molekụla karịrị 300,000.PHBV, dị ka mmụba na ngwaahịa ọgbọ mbụ PHB, emewo ka ọ dịkwuo mma ka ọ gbakwụnyere 3-hydroxyvalerate (3HV) monomer.N'ihi na enwere ike imebi ya kpamkpam na compost, ala, mmiri mmiri na gburugburu ebe ndị ọzọ, ọ nwekwara ezigbo bioacompatibility na nnukwu ihe mgbochi maka mmiri mmiri na gas, na-eme ka PHBV bụrụ ezigbo ihe injinia anụ ahụ mmadụ maka ịme sutures ahụike.waya, mbọ mbọ ọkpụkpụ, wdg, a pụkwara iji ya mee ihe dị ka mulch ugbo,akpa ịzụ ahịa, tableware na ihe nkwakọ nri.Ka ọ dị ugbu a, a na-emepụta usoro mmepụta nke ngwaahịa PHBV, ma tinye ya na trays golf,mkpofu tableware, ihe nkiri, efere, nkwakọ ngwaahịa na ubi ndị ọzọ.
Ọgbọ nke atọ nke PHA-poly 3-hydroxybutyrate-3-hydroxyhexanoate (PHBHHx), ebe ọ bụ na 1998, Tsinghua University Microbiology Laboratory na Guangdong Jiangmen Biotechnology Development Center emeputala nke ọma hydroxybutyric acid maka oge mbụ n'ụwa teknụzụ mmepụta mmepụta ihe nke copolymer. PHBHHx nwere hydroxycaproic acid, ma na-achọpụta mmepụta nnukwu.E jiri ya tụnyere PHBV, PHBHHx nwere kristal dị ala na ductility dị elu, yana arụmọrụ ya dị ka nke plastik polyethylene (PE).
Ọgbọ nke anọ PHA-copolymer nke poly-3-hydroxybutyrate na 4-hydroxybutyrate (P3HB4HB ma ọ bụ P34HB), nwere ezigbo ihe na-emepụta ihe nkiri na ihe anụ ahụ, mana hydrophilicity adịghị mma.Ọgbọ nke anọ PHA egosila atụmanya ngwa dị mma n'ọhịa nke nyocha injinia anụ ahụ, dị ka ihe ndị na-eme ka ọkpụkpụ na-eme ka ọkpụkpụ anụ ahụ na-ebunye ụmị ọkpụkpụ mmadụ marrow mesenchymal stem cell, wdg.
N'ihi na PHA nwere ezigbo biocompatibility, biodegradability na thermal nhazi arụmọrụ nke plastik n'otu oge.Ya mere, enwere ike iji ya dị ka ihe biomedical naihe nkwakọ ngwaahịa biodegradableN'otu oge ahụ, nke ghọrọ ebe nyocha kachasị arụ ọrụ na ngalaba nke biomaterials n'afọ ndị na-adịbeghị anya.PHA nwekwara ọtụtụ ihe agbakwunyere ọnụ ahịa dị elu dị ka ngwa anya na-adịghị adị, piezoelectricity, na ihe mgbochi gas.
Ụlọ ọrụ WorldChampga-adị njikere mgbe niile inye iheIhe ECOnye ndị ahịa si n'akụkụ ụwa niile,glove compostable, akpa nri, akpa ndenye ọpụpụ, akpa ahịhịa,cutlery, nri ọrụ ware, wdg.
Ụlọ ọrụ WorldChamp bụ onye mmekọ gị kacha mma iji wepụta ngwaahịa ECO, ihe ndị ọzọ nke ngwaahịa plastik ọdịnala, iji gbochie mmetọ ọcha, mee ka oke osimiri na ụwa dị ọcha ma dị ọcha.
Oge nzipu: Feb-10-2023