Polyhydroxyalkanoate (PHA), intracellular polyester yakagadzirwa neakawanda tupukanana, ndeye yakasikwa polymer biomaterial.
CHaracteristics yePHA
Biodegradability: PHA inongoerekana yaparara, pasina composting, inogona kusvibiswa muvhu nemvura, pasi pemamiriro e-aerobic uye anaerobic, uye nguva yekuora inodzoreka, zvichienderana nekuumbwa uye ukuru hwechigadzirwa chePHA uye mamwe mamiriro ekunze.Zvichienderana nemhoteredzo, chiyero chekuora kwePHA chiri 2 kusvika ku5 nguva nokukurumidza kupfuura chemikemikari yakagadzirwa biodegradable material polycaprolactone (PCL) kana zvimwe zvinosvibisa synthetic aliphatic polyesters;nepo PHA yepedyo iri polylactic acid (PLA) Biodegradation haizoitike nyore pasi pe60 degrees Celsius.
Yakanaka biocompatibility: PHA inogona kuderedzwa kuita madiki mamolecular oligomers kana monomer components mumuviri, izvo zvisina chepfu uye zvisingakuvadzi kune zvipenyu, uye hazvizokonzere kurambwa.Naizvozvo, inogona kuiswa kune ekugadzira mapfupa, zvinodhaka zvinotsigira-kuburitsa vamiririri nezvimwe zvakadaro.Muna 2007, suture inonyura (TephaFLEX®) yakagadzirwa neP4HB yakabvumidzwa neUS FDA uye yakave yekutanga kutengeserana PHA chigadzirwa chekurapa.Parizvino, nyika iri kudzidza zvakanyanya mashandisirwo ePHA mune dzakawanda minda senge tishu engineering, implant zvinhu, uye zvinodhaka zvinoburitswa-zvinotakura.
Yakanaka composite pfuma: inogona kushandiswa mumubatanidzwa nezvimwe zvinhu.Semuenzaniso, PHA inogona kusanganiswa nebepa kugadzira bepa rekurongedza rine zvakakosha zvivakwa;kana kusanganiswa nesimbi, aluminium, tini uye zvimwe zvinhu zvesimbi, uye zvinogonawo kusanganiswa nenhunzi madota kuti uvandudze kushanda kwekupisa uye kuoma kwePHA;kuwedzera, PHA uye calcium silicate Compounding inoshandiswa kuwedzera kuderera kwePHA uye kugadzirisa dambudziko rekuderera kwepH kukosha mushure mePHA kuparara;inogona zvakare kusanganiswa nemamwe inorganic kurapa maajenti kuti igadzire zvekuputira zvine basa rekusapinda mvura.
Gasi barriers zvivakwa: PHA ine yakanaka gasi inodzivirira zvivakwa uye inogona kushandiswa mukutsva-kuchengeta kurongedza;hydrolytic kugadzikana: yakasimba hydrophobicity, inoshandiswa mukugadzira tableware;nonlinear optics: PHA ine optical activity, uye imwe neimwe yemaitiro unit ine A chiral carbon inogona kushandiswa chromatographic analysis kuparadzanisa optical isomers;UV kugadzikana: Kuenzaniswa nemamwe ma polyolefins uye polyaromatic mapolymer, ine iri nani UV kugadzikana.
Applicationszve PHA
1. Biomedical zvinhu.PHA inowanzoshandiswa munharaunda yezvokurapa kugadzira sutures yekuvhiya, zvinyorwa, zvinotsiva pfupa, zvinotsiviwa nemidziyo yeropa, zvinodhaka zvinogara zvichiburitswa, magirovhosi ekurapa, zvinhu zvekupfeka, tamponi, mafirimu ekurapa, nezvimwe.
2. Biodegradable packaging materials uye zvisingasviki mvura uye zvinogara kwenguva refu zvevatengi zvakadai sezvigadzirwa zvehutsanana, diapers, cosmetics (exfoliating agents mu cosmetics, mvura yebhodhoro linings), nezvimwewo.
3. Zvishandiso zvekushandisa.Furnicha, tableware, magirazi, magetsi ekuchinja, zvemukati zvemotokari, nezvimwe.
4. Zvigadzirwa zvekurima.Biodegradable mutakuri wemishonga yezvipembenene uye fetiraiza, firimu repurasitiki, nezvimwe.
5. Chemical media uye solvents.Cleaners, dhayi, inki solvents, adhesives, optically inoshanda zvinhu.
6. Inoshandiswa sechigadziko chezvinyorwa zve thermosetting (polyurethane uye unsaturated polyester resins).
Nekuti PHA ine yakanaka biocompatibility, biodegradability uye thermal processing performance yemapurasitiki panguva imwe chete.Naizvozvo, inogona kushandiswa sezvinhu zvebiomedical uye biodegradable kurongedza zvinhu panguva imwe chete, iyo yave inonyanya kushanda yekutsvagisa hotspot mumunda webiomaterials 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