Polyhydroxyalkanoate (PHA), polyester ea intracellular e entsoeng ke likokoana-hloko tse ngata, ke polymer biomaterial ea tlhaho.
Clitlhaselo tsa PHA
Biodegradability: PHA e senyeha ka boithatelo, ntle le manyolo ka litlama, e ka senyeha mobung le metsing, tlas'a maemo a aerobic le anaerobic, 'me nako ea ho senyeha e laoloa, ho itšetlehile ka sebopeho le boholo ba sehlahisoa sa PHA le maemo a mang a ka ntle.Ho itšetlehile ka tikoloho, tekanyo ea ho senyeha ha PHA ke 2 ho makhetlo a 5 ka potlako ho feta lik'hemik'hale tse entsoeng ka lik'hemik'hale tse nang le lik'hemik'hale tsa polycaprolactone (PCL) kapa li-polyester tse ling tse senyehang tsa synthetic aliphatic;athe PHA e haufi ka ho fetisisa ke polylactic acid (PLA) Biodegradation e ke ke ea etsahala habonolo ka tlase ho likhato tse 60 tsa Celsius.
Biocompatibility e ntle: PHA e ka senyeha ho ba li-oligomers tse nyane tsa limolek'hule kapa likaroloana tsa monomer 'meleng, tse se nang chefo le tse se nang kotsi ho lintho tse phelang,' me li ke ke tsa baka ho hana.Ka hona, e ka sebelisoa ho masapo a maiketsetso, mahlahana a ho lokolla lithethefatsi le tse ling tse joalo.Ka 2007, suture e nkehang habonolo (TephaFLEX®) e entsoeng ka P4HB e ile ea amoheloa ke US FDA 'me ea fetoha sehlahisoa sa pele sa khoebo sa PHA lefatšeng.Hajoale, lefats'e le ntse le ithuta ka matla ts'ebeliso ea PHA mafapheng a mangata joalo ka boenjiniere ba lisele, lisebelisoa tsa ho kenya, le bajari ba tokollo ea lithethefatsi.
Thepa e ntle e kopantsoeng: e ka sebelisoa ka motsoako le lisebelisoa tse ling.Ka mohlala, PHA e ka kopanngoa le pampiri ho etsa pampiri ea ho paka ka thepa e khethehileng;kapa e kopantsoe ka tšepe, aluminium, tin le lisebelisoa tse ling tsa tšepe, hape e ka kopanngoa le molora oa fofa ho ntlafatsa ts'ebetso ea mocheso le ho tiea ha PHA;ho phaella moo, PHA le calcium silicate Compounding e sebelisetsoa ho eketsa tekanyo ea ho senyeha ha PHA le ho rarolla bothata ba boleng bo tlaase ba pH ka mor'a ho senyeha ha PHA;e ka boela ea kopanngoa le lisebelisoa tse ling tse phekolang ka tlhaho ho hlahisa lisebelisoa tsa ho roala tse nang le ts'ebetso e sa keneleng metsi.
Thepa e thibelang khase: PHA e na le thepa e ntle ea thibelo ea khase 'me e ka sebelisoa ka har'a liphutheloana tse hloekileng;botsitso ba hydrolytic: hydrophobicity e matla, e sebelisoang ho hlahisa lisebelisoa tsa tafole;li-nonlinear optics: PHA e na le ts'ebetso ea optical, 'me karolo e' ngoe le e 'ngoe ea mohaho e na le A chiral carbon e ka sebelisoa bakeng sa tlhahlobo ea chromatographic ho arola li-isomers tsa optical;Botsitso ba UV: Ha e bapisoa le polyolefin tse ling le polyaromatic polymers, e na le botsitso bo betere ba UV.
Koposea PHA
1. Lisebelisoa tsa biomedical.PHA e atisa ho sebelisoa lefapheng la bongaka ho etsa li-sutures tsa ho buoa, li-staples, li-substitutes tsa masapo, li-substitutes tsa methapo ea mali, li-carriers tse tsoelang pele tsa lithethefatsi, li-gloves tsa bongaka, lisebelisoa tsa ho apara, li-tampon, lifilimi tsa bongaka, joalo-joalo.
2. Lisebelisoa tsa ho paka tse ka senyehang le lihlahisoa tsa bareki tse sa keneleng metsi le tse tšoarellang joalo ka lihlahisoa tsa bohloeki, li-diaper, litlolo (li-exfoliating agents ka litlolo, liphahlo tsa libotlolo tsa metsi), joalo-joalo.
3. Lisebelisoa tsa lisebelisoa.Thepa ea ka tlung, tableware, likhalase, li-switch tsa motlakase, li-interiors tsa likoloi, joalo-joalo.
4. Lihlahisoa tsa temo.Sesebelisoa sa biodegradable sa chefo e bolaeang likokoanyana le menontsha, filimi ea polasetiki, jj.
5. Mecha ea litaba ea lik'hemik'hale le li-solvents.Lisebelisoa, lidae, li-solvents tsa enke, li-adhesives, lisebelisoa tsa optically tse sebetsang.
6. E sebelisoa e le thepa ea motheo bakeng sa lisebelisoa tsa thermosetting (polyurethane le unsaturated polyester resin).
Hobane PHA e na le biocompatibility e ntle, biodegradability le ts'ebetso ea mocheso oa polasetiki ka nako e le 'ngoe.Ka hona, e ka sebelisoa e le lisebelisoa tsa biomedical le lisebelisoa tsa ho paka tse ka senyehang ka nako e le 'ngoe, e fetohileng sebaka se sebetsang ka ho fetisisa sa lipatlisiso lefapheng la biomaterials lilemong tsa morao tjena.PHA e boetse e na le lisebelisoa tse ngata tsa boleng bo holimo tse kang li-nonlinear optics, piezoelectricity, le thepa ea thibelo ea khase.
Likhoebo tsa WorldChampe tla be e loketse ka linako tsohle ho fana kaLintho tsa ECOho bareki ba tsoang lefats'eng lohle,liatlana tse nang le compostable, mekotla ea korosari, mokotla oa ho tsoa, mokotla oa lithōle,poho, thepa ea litšebeletso tsa lijo, joalo-joalo.
WorldChamp Enterprises ke molekane oa hau ea hloahloa oa ho sebelisa lihlahisoa tsa ECO, mefuta e meng ea lihlahisoa tsa polasetiki tsa setso, ho thibela tšilafalo e tšoeu, ho etsa hore leoatle la rona le lefatše li hloeke le ho hloeka.
Nako ea poso: Feb-10-2023