Video: Phab yog yas?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
PHAs yog biodegradable, yooj yim compostable thermoplastics, ua los ntawm microbial fermentation ntawm carbon-based feedstocks. Cov yam ntxwv ntawm PHA polymers yog customizable rau daim ntawv thov, nyob ntawm seb cov kev sib txuas ntawm txawv monomers incorporated rau hauv lub polymer saw.
Kuj nug, PHA yas ua li cas?
PHA (polyhydroxyalkanoate) yog ua los ntawm cov kab mob, qee zaum genetic engineered, uas tsim yas los ntawm cov khoom siv organic. Lawv tsim PHA raws li carbon reserves, uas lawv khaws cia rau hauv granules kom txog rau thaum lawv muaj ntau ntawm lwm cov as-ham lawv xav tau kom loj hlob thiab tsim.
Ib sab saum toj no, PHA tuaj qhov twg? PHAs (polyhydroxyalkanoates) yog polyesters biosynthesized los ntawm cov kab mob noj los ntawm cov roj pheej yig tau los ntawm cov noob ntawm cov nroj tsuag xws li canola, soy, thiab xibtes. Nyob rau hauv kev sib piv rau cov tshuaj lom raug siv los ua petro-plastics, peb PHA bioplastics tshwm sim nyob rau hauv lub hlwb ntawm cov kab mob thaum lub sij hawm loj hlob.
Ib yam li ntawd, tib neeg nug, PHA siv rau dab tsi?
PHAs yog dav siv rau ntau yam kev siv biomedical, suav nrog kev xa tshuaj thiab cov ntaub so ntswg engineering scaffolds, vim lawv cov biocompatibility zoo heev thiab biodegradability. Thawj thiab tshaj plaws PHA yog poly (β-hydroxybutyrate) (PHB).
PHA yuav siv sij hawm ntev npaum li cas kom decompose?
Biodegradable PHA lub raj mis tawg nyob rau hauv cov av tsis pub dhau 2 lub hlis (tab sis nyob twj ywm zoo li ntev vim lawv tsis muab pov tseg).
Pom zoo:
Lub thoob yas yas hnyav npaum li cas?
Lub tank tso dej ntau npaum li cas? Thiab vim li cas qhov hnyav tseem ceeb? Poly dej tso tsheb hlau luam hnyav kwv yees li 200 kg thaum lawv cov khoom sib xyaw hnyav txog 1,500 kg
Koj puas tuaj yeem siv cov yas yas txuas rau ntawm cov yeeb nkab tooj liab?
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Cov kav dej yas yas yog dab tsi?
Yas: Cov yeeb nkab yas los ua ABS (acrylonitrile-butadiene-styrene) lossis PVC (polyvinyl-chloride). Feem ntau cov tsev txij li thaum nruab nrab xyoo 1970 muaj cov kav dej yas thiab fittings vim nws pheej yig thiab siv tau yooj yim
Koj tuaj yeem qhia tau li cas yog tias cov yas yog nylon?
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Puas yog vinyl thiab yas yog tib yam?
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