PBAT (polybutylene terephthalate) ke khutsufatso ea polybutylene terephthalate. Thepa e tala bakeng sa ho lokisetsa PBAT ke haholo-holo adipic acid (AA), terephthalic acid (PTA), butylene glycol (BDO) e le monomers, ho latela karolo e itseng ea esterification kapa transesterification reaction le polycondensation reaction to synthesize polyadipic acid / butylene terephthalate. ester, ebe ka esterification, polycondensation le granulation mehato e meraro ho lokisa sehlahisoa sa ho qetela. PBAT e na le mehele ea benzene, ka hona e na le botsitso bo phahameng ba limolek'hule tsa mocheso, empa tekanyo e tlase ea ho senyeha ha limolek'hule; limolek'hule li nka sebaka se seholo 'me li loketse ho tsoakana le limolek'hule tse ling; E na le liketane tse mafura, tse tiisang ho feto-fetoha ha maemo ha liketane tsa limolek'hule 'me kahoo ho na le ductility e ntle.
PBAT ke polymer ea semi-crystalline, hangata mocheso oa crystallization o pota-potile 110 ° C, 'me ntlha ea ho qhibiliha e ka bang 130 °C,' me boima bo pakeng tsa 1.18g/ml ~ 1.3g/ml. The crystallinity ea PBAT e ka bang 30%, 'me Shore hardness e ka holimo ho 85. PBAT ke copolymer ea lihlopha tsa aliphatic le tse nkhang hamonate, tse kopanyang mekhoa e metle ea ho senyeha ha li-polyester tsa aliphatic le mekhoa e metle ea mechine ea li-polyester tse nkhang hamonate. Ts'ebetso ea ts'ebetso ea PBAT e ts'oana haholo le LDPE, 'me filimi e ka foka ka lisebelisoa tsa ho sebetsa tsa LDPE.
PBAT e na le biodegradability e ntle, 'me lihlahisoa tse entsoeng ka PBAT li senyeha habonolo le ka ho feletseng ka thuso ea likokoana-hloko tsa tlhaho le libaktheria, qetellong li fetoloa carbon dioxide le metsi. Ka lebaka la ductility ea eona e ntle, elongation nakong ea khefu, ho hanyetsa mocheso le thepa ea tšusumetso, PBAT e ka sebelisoa indastering ea liphutheloana tsa polasetiki, tse kang mekotla ea mabenkele, mekotla ea lithōle, joalo-joalo, hape e sebelisoa ka tableware, filimi ea mulch le masimo a mang.
Nako ea poso: Jan-19-2023