Chii chinonzi PES zvinhu? Kuongorora kwakadzama kwezvivakwa uye mashandisirwo epolyethersulfone
Muchikamu chemakemikari zvinhu, "chii chiri chinhu chePES" mubvunzo unowanzoitika, PES (Polyethersulfone, Polyethersulfone) ndeyepamusoro-inoshanda thermoplastic polymer, nekuda kwesimba rayo rakanakisa remagetsi uye kupisa kwekushisa kwepamusoro, kunoshandiswa zvakanyanya munzvimbo dzakawanda dzeindasitiri. Muchikamu chino, tichakurukura zvakadzama zvivakwa zvezvinhu, nzira dzekugadzirira uye nzvimbo huru dzekushandisa dzePES.
Basic zvimiro zvePES
PES is an amorphous thermoplastic material ine high heat resistance uye yakagadzikana ma mechanical properties. Girazi yayo yekushandura girazi (Tg) inowanzokomberedza 220 ° C, iyo inoita kuti igadzikane mumamiriro ekupisa kwepamusoro.PES ine kupikisa kwakanakisisa kune oxidation uye hydrolysis, uye inokwanisa kudzivisa kuparara kana ichiiswa munzvimbo dzine hunyoro kana kutonhora kwemvura yakakwirira kwenguva yakareba. Izvi zvivakwa zvinoita kuti PES yakanakira kugadzira zvikamu zvekushandisa munzvimbo dzinoda.
Kugadzirira uye Kugadziriswa kwePES
PES inowanzogadzirwa nepolymerization, kunyanya inosanganisira polycondensation yebisphenol A uye 4,4′-dichlorodiphenylsulfone. Nyaya yacho ine good processability uye inogona kugadziriswa nenzira dzakasiyana-siyana, kusanganisira jekiseni moulding, extrusion uye thermoforming.PES inogona kugadziriswa pakupisa pakati pe300 ° C uye 350 ° C, izvo zvinoda kuti mushandisi ave nemichina yakanaka yekugadzirisa uye maitiro ekudzora. Kunyangwe PES yakaoma kugadzirisa, zvigadzirwa zvinowanzove neakanakisa dimensional kugadzikana uye kupera kwepamusoro.
Nzvimbo huru dzekushandisa dzePES
PES zvinhu zvinoshandiswa zvakanyanya mumaindasitiri akasiyana nekuda kwekuita kwayo kwakanaka. Muindasitiri yemagetsi nemagetsi, PES inoshandiswa zvakanyanya kugadzira magetsi ekudzivirira uye zvibatanidza nekuda kwekunaka kwayo kusungirira uye kudzivirira kupisa, uye inoshandiswa zvakanyanya muindasitiri yemidziyo yekurapa. Nekuda kwekukwira kwayo kupisa kwekushisa, hydrolysis kuramba uye makemikari kuramba, PES chinhu chakanakira kugadzirwa kwezvigadzirwa zvekurapa zvakaita semidziyo yekuvhiya, midziyo yekudzivirira uye mafirita.
PES muKurapa Mvura
Nzvimbo yekushandiswa inocherechedzwa ndeye kurapwa kwemvura.PES inoshandiswa zvakanyanya mukugadzirwa kwemvura yekurapa membrane nekuda kwekunaka kwayo kwemakemikari inertness uye kuramba kusvibiswa. Aya ma membranes anowanzo shandiswa mu ultrafiltration uye microfiltration masisitimu uye anokwanisa kubvisa zvakamisikidzwa maomarara uye tupukanana kubva mumvura uku achichengetedza yakanakisa permeability uye mechanic simba. Ichi chishandiso chinoratidza zvakare kukosha kwezvinhu zvePES mukushanda kwepamusoro kwekushandisa.
Environmental Advantages yePES
Munyika yanhasi ine hanya nemhoteredzo, zvinhu zvePES zviri zvakare mukutarisa: PES ine hupenyu hurefu hwesevhisi uye kusimba kwakasimba, izvo zvinoderedza kuwanda kwekutsiviwa kwezvinhu uye nekudaro marara, uye maitiro ekugadzira ane hushamwari kwezvakatipoteredza, pasina chikonzero chezvinonyungudutsa, izvo zvinoipa mukana maererano nekugadzikana.
Mhedziso
Kubva pane ongororo yakadzama mubepa rino, tinogona kugumisa kuti PES ndeyepamusoro-inoshanda thermoplastic zvinhu zvine zvivakwa zvakanakisa uye kuwanda kwekushandisa. Zvingave zviri mumunda wemagetsi nemagetsi, zvishandiso zvekurapa kana kurapwa kwemvura, PES yakaratidza zvakanakira zvakasarudzika. Kune vaverengi vanoda kuziva "chii chinonzi PES yakagadzirwa", PES chinhu chakakosha chine huwandu hwakawanda hwekugona uye akawanda maapplication, uye icharamba ichiita basa rakakosha mukuvandudza maindasitiri mune ramangwana.