Polyhydroxyalkanoate PHA
Polyhydroxyalkanoate ewebiri dị ka PHA, bụ okwu izugbe maka klaasị polyesters dị arọ dị elu nke microorganisms mebere. A na-eme PHA site na ọka, nduku na biomass starch ndị ọzọ ma ọ bụ straw cellulose dị ka akụrụngwa, fermented na-emepụta lactic acid, na n'ihu dị ọcha na polymerized iji kwadebe elu-ọcha PLA, nke bụ enyi na enyi gburugburu ebe obibi, na-adịghị egbu egbu, antibacterial, ire ọkụ. retardant na ezigbo biocompatibility.
Ọkwa ịgba ntụtụ nke PHA, ọkwa ọnya, ọkwa ịfụfụ, ọkwa ụfụfụ, na ihe ndị ọzọ nwere ike imebi ihe n'ofe ahịrị niile. PHA bụ ụdị ihe onwunwe polyhydroxyalkanoates (PHA), nke bụ ihe biopolymer na-emepụta ozugbo site na gbaa ụka microbial na microorganisms. PHA nwere uru agbakwunyere dị elu dị ka biocompatibility, biodegradability, na akụrụngwa piezoelectric. Ha nwere ezigbo ihe eji eme ihe na nhazi nhazi, na ihe ndị bụ isi ha yiri polypropylene. Enwere ike ịhazi ma kpụzie ha site na iji ngwa nhazi plastik ọdịnala dịka ịkpụzi injection, extrusion, ịfụ ihe nkiri, ịse waya, na ịkpụzi, ma nwee ike dochie ọnụ ọgụgụ ka ukwuu nke plastik ndị dabeere na mmanụ ụgbọala. Enwere ike ịchịkwa ọnụ ọgụgụ biodegradation nke PHA site na nhazi nke copolymers ha dịka mkpa ngwa dị iche iche siri dị.
| Ihe | Nkeji |
| Njupụta | 1.28g/cm3 |
| MFR 170 ℃, 2160g | 2.5 g/10 nkeji |
| Oke agbaze | 140–160 ℃ |
| Vicat A/120 | 55 ℃ |
| Ike ọdụdọ | 35 MPa |
| Na-agbaji ndọtị | 150% |
| Modul Flexural | 2500 MPa |
| Mmiri absorb | <0.3% |
Akụkụ kacha ukwuu nke PHA bụ na ụmụ nje nwere ike mebie ya n'ihe fọrọ nke nta ka ọ bụrụ gburugburu ebe niile, dị ka compost, ala, mmiri oké osimiri, na ihe ndị ọzọ. Ngwaahịa mgbe ire ere na-abụkarị mmiri na carbon dabere, ọ gaghị emetọkwa gburugburu ebe obibi. Nchọpụta a ewelitere olu PHA n'ọhịa nke ngwaahịa rọba nke a na-atụfu n'okpuru ndabere nke mmachibido plastik, ma nyekwa echiche mmepe ndụ akwụkwọ ndụ na-adigide maka ngwaahịa nnọchi rọba mbụ.
PHA bụ ihe na-emebi emebi nke na-eji biomass nwere ike imeghari ka ọ bụrụ akụrụngwa nke microorganisms mebere ya kpamkpam; PHA nwere ọmarịcha arụmọrụ n'ihe gbasara nje anaghị egbu egbu na ọ bụ plastik anaghị egbu egbu ma ọ bụ ọbụlagodi oriri.
Ntugharị na ọgwụgwọ nke PHA nwekwara uru pụrụ iche - a na-ekpochapụ plastik mkpofu ọdịnala site na mkpotu ma ọ bụ nsure ọkụ, na-ebute nsogbu mmetọ dị ka ala na ikuku. N'aka nke ọzọ, enwere ike ịhazi PHA site na usoro ọgwụgwọ ma jiri ya mee ihe dị ka nri iji mepụta uru akụ na ụba ọzọ, na-enweta usoro ihe onwunwe na akụ na ụba abụọ.
25kg / akpa ma ọ bụ dị ka ndị ahịa chọrọ
Polyhydroxyalkanoate PHA
Polyhydroxyalkanoate PHA
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