Chidziwitso choyambirira cha PHA

Polyhydroxyalkanoate (PHA), polyester ya intracellular yopangidwa ndi tizilombo tambirimbiri, ndi chilengedwe cha polima biomaterial.

M'maselo a tizilombo tating'onoting'ono, makamaka maselo a bakiteriya, pali ma polima ambiri a polymer - Polyhydroxyalkanoates (PHA).Ichi ndi chilengedwe cha polima biomaterial.Sichikutanthauza polima ena, komamawu wamba a gulu la ma polima okhala ndi mapangidwe ofanana ndi zinthu zosiyanasiyana.

PHA yakhala ikuchitikamagawo anayi a chitukuko.

M'badwo woyamba wa PHA, polyhydroxybutyrate (PHB), unapangidwa mochuluka ndi Chemie Linz AG ku Austria m'ma 1980 (kutulutsa matani 100 pachaka).Monga zida zoyambilira zopezeka za PHA, PHB ndiyonso njira yosavuta komanso yodziwika bwino m'banja la PHA.Ili ndi mawonekedwe apamwamba, olimba komanso osasunthika, ndipo makina ake ndi malo osungunuka ndi ofanana ndi polypropylene (PP);koma elongation pa yopuma Low mlingo, mkulu brittleness.Chifukwa chake, PHB nthawi zambiri singagwiritsidwe ntchito ngati chinthu chimodzi ndipo imayenera kusinthidwa kuti ikwaniritse ntchito yoyenera.

M'badwo wachiwiri wa PHA, polyhydroxybutyric acid copolyester (PHBV), idagulitsidwa ndi ICI m'ma 1980.PHBV ndi PHA copolymer yokhala ndi molekyulu yolemetsa yopitilira 300,000.PHBV, monga kusintha kwa mankhwala amtundu woyamba wa PHB, yasintha kwambiri kusungunuka kwake pambuyo powonjezera 3-hydroxyvalerate (3HV) monomer.Chifukwa imatha kuwonongeka mu kompositi, m'nthaka, m'madzi a m'nyanja ndi m'malo ena, imakhalanso ndi kuyanjana kwabwino kwachilengedwe komanso zotchinga zazikulu zamadzimadzi ndi mpweya, zomwe zimapangitsa PHBV kukhala chinthu chabwino kwambiri chopangira minofu yamunthu popanga ma sutures azachipatala.waya, misomali fupa, etc., ndipo angagwiritsidwe ntchito ngati mulch ulimi,matumba ogula, tableware ndi zopangira chakudya.Pakalipano, kupanga zinthu za PHBV kwapangidwanso, ndipo kwagwiritsidwa ntchito muzitsulo za gofu,zotayidwa tableware, mafilimu, mbale, ma CD ndi zina.

M'badwo wachitatu wa PHA-poly 3-hydroxybutyrate-3-hydroxyhexanoate (PHBHHx), kuyambira 1998, Tsinghua University Microbiology Laboratory ndi Guangdong Jiangmen Biotechnology Development Center apanga bwino hydroxybutyric acid kwa nthawi yoyamba padziko lapansi. PHBHHx yokhala ndi hydroxycaproic acid, ndikuzindikira kupanga kwakukulu.Poyerekeza ndi PHBV, PHBHHx ili ndi kutsika kwa crystallinity ndi ductility apamwamba, ndipo ntchito yake ikufanana ndi mapulasitiki a polyethylene (PE).

M'badwo wachinayi PHA-copolymer wa poly-3-hydroxybutyrate ndi 4-hydroxybutyrate (P3HB4HB kapena P34HB), ali ndi mafilimu abwino opangira mafilimu ndi thupi, koma hydrophilicity osauka.PHA ya m'badwo wachinayi yawonetsa chiyembekezo chabwino chogwiritsa ntchito pa kafukufuku wa uinjiniya wa minofu, monga zida za scaffold mu uinjiniya wa fupa la mafupa kuti azinyamula ma cell a mafupa a mesenchymal stem cell, ndi zina zambiri.

Chifukwa PHA ili ndi biocompatibility yabwino, biodegradability ndi magwiridwe antchito apulasitiki nthawi yomweyo.Chifukwa chake, itha kugwiritsidwa ntchito ngati zida zamankhwala komanso zamankhwalabiodegradable ma CD zinthunthawi yomweyo, yomwe yakhala malo ochita kafukufuku kwambiri pazachilengedwe m'zaka zaposachedwa.PHA ilinso ndi zinthu zambiri zomwe zimawonjezera mtengo wamtengo wapatali monga ma optics osagwirizana, piezoelectricity, ndi zotchinga mpweya.

WorldChamp Enterprisesadzakhala okonzeka nthawi zonse kuperekaZinthu za ECOkwa makasitomala ochokera padziko lonse lapansi,Magulovu opangidwa ndi kompositi, zikwama zogulira, chikwama chotuluka, thumba la zinyalala,zodula, chakudya chogulitsira, ndi zina.

WorldChamp Enterprises ndi mnzanu wapamtima kuti muthe kugwiritsa ntchito zinthu za ECO, njira zina zamapulasitiki azikhalidwe, kuti mupewe kuipitsidwa koyera, kupanga nyanja yathu ndi dziko lapansi kukhala zoyera komanso zoyera.