Nekuwedzera kwekusvibiswa kwe "white pollution", nyika dzepasirese dzakatangisa kuomarara kwepurasitiki, iyo inogona kukanganisa mabhegi epurasitiki kuti atore masupamaketi makuru nenzvimbo dzekutengera.Kunyatsocherechedza kuchaona kuti aya mabhegi epurasitiki anoparara anenge ese anenge ese emhando idzi.Pbat+PLA+ST.Saka ndezvipi zvakanakira PBAT+PLA+ST?
Imwe: starch
Starch inoparadzirwa zvakanyanya mumichero kana chirimwa michero, midzi kana mashizha.Kune anosvika mazana emamiriyoni ematani ekugadzirwa kwesitachi gore rega rega.Ndiyo imwe yeakawanda anogona kudzokororwa uye biodegradable zviwanikwa.Iine zvakanakira zvinyorwa zvakakura uye mitengo yakaderera.Nekudaro, nekuti yakasikwa starch ine microcrystalline chimiro uye granular chimiro, haina thermoplastic processing performance, uye inoda kushandurwa kuita armoplastic starch kuti ive ne thermoplastic processing performance.
Vaviri: PBAT
Polycolic acid/phenyl -dysic acid dysol (PBAT) imhando yepolyester yakaora yakakwezva vanhu vakawanda.Uye ductility inogonawo kuderedzwa kumvura uye carbon dioxide mumamiriro echisikigo.
Zvisinei, mutengo wechinhu ichi wakakwirira, izvo zvinoderedza kushandiswa kwayo mumusika;saka, mutengo wayo wakaderera uye degradable starch ndiyo yakanakisa sarudzo nePBAT.
Chechitatu: PLA
PLA (Polylactic Acid) inozivikanwawo sepolystumin.Iyo nzira yekugadzira ye polystumin kusvibiswa, uye chigadzirwa chinogona biodegradable, iyo inowanikwa muzvisikwa.Naizvozvo, yakanakira girinhi polymer zvinhu.Poshi.
Zvisinei, pane zvakawanda zvinoperevedza muzvishandiso zvinoshanda: PLA ine husimba husina kunaka, kushaya elasticity uye kuchinjika, kuomarara kwemavara uye brittleness, yakaderera soluble simba, inononoka crystalline mwero, nezvimwewo. Kukanganisa kuri pamusoro kwakaganhurira maapplication avo mune zvakawanda.
PLA chimiro chemakemikari chine huwandu hukuru hweester bond, izvo zvinokonzeresa kushomeka kwehydrophilicity uye degradation mitengo inoda kudzorwa.Pamusoro pezvo, mutengo wePLA wakakwira, izvo zvinowedzera mutengo wezvigadzirwa uye zvinomisa kusimudzira kwayo kwekutengesa.Naizvozvo, iyo PLA inogadziridzwa nekuda kwezvikanganiso zvakawanda zviri pamusoro.
PBAT ine yakapfava manyorerwo, yakasimba ductility, uye pfupi degradation kutenderera;PLA ine crispy mameseji, kusasimba kusimba, uye kureba kuderedzwa kutenderera.Naizvozvo, kusanganisa izvo zviviri inzira yakanaka yekuvandudza mashandiro.
Zvina: PBAT/PLA sumo yezvinhu
Kunyunguduka kwePBAT nePLA inzira yekushandura muviri.Chinhu chikuru ndechekuda kuenderana kwakanaka.Nekudaro, kunyungudika kwePBAT nePLA kwakakura, saka kugarisana hakuna kunaka, uye zvinonetsa kusanganisa zvakafanana.
Kuvandudza kuenderana kwePBAT nePLA ndiro dambudziko rekutanga.Imwe kana kupfuura midziyo inoda kuwedzerwa kune musanganiswa wekusanganisa kuti uvandudze kunamatira kwePBAT uye PLA interface.Midziyo inowanzoshandiswa ndeye: plasticizers, reactivity, reaction, uye yakaoma polymer polymer.
PLA nePBAT vane mashandiro anoenderana, saka panofanira kunge paine yakanakisa mhando reshiyo yekushanda kwakazara.
1. Chikamu chePLA chinokwira kusvika ku40% kune nodes.Kutambanudzira kusimba kwezvinhu kunoderedzwa kutanga uyezve kuwedzera.
2. Kana zvinyorwa zvePLA zvakakura kudarika 70%, zvinyorwa zvakanyanya crispy uye hazvigoni kuputirwa mufirimu.Naizvozvo, chikamu chePLA kuPBAT chinofanirwa kuchengetedzwa panenge pa1: 1 zvinoenderana nemamiriro ekuwedzera.
【Yakaderedzwa kuita】
Mhinduro yekutanga yekuparara kwezvinhu ndeyekuti mhinduro ye hydrolyzed yemamorekuru emvura inopinda.Kana iri chinhu chakasiyana chePBAT, chinonetsa kudzikisira nekuti chimiro chemolecular chine ester bond yakaoma.Mamorekuru ePLA anotapukirwa nekuparara kwemukati nemvura.Naizvozvo, iyo yakakwira iyo PLA yemukati, iyo inokurumidza kuparara kwezvinhu.
Nguva yekutumira: Sep-08-2022