Cikakken polymer-wanda ke daidaita kaddarorin jiki da aikin muhalli-ba ya wanzu, amma polybutylene adipate co-terephthalate (PBAT) ya zo kusa fiye da da yawa.
Masu kera polymers na roba sun yi shekaru da yawa sun kasa hana kayayyakin su karewa a wuraren da ake zubar da ruwa da kuma tekuna, kuma a yanzu suna fuskantar matsin lamba don daukar nauyi. Mutane da yawa suna ninka ƙoƙarin haɓaka sake yin amfani da su don kawar da masu suka. Sauran kamfanoni suna ƙoƙarin magance matsalar sharar gida ta hanyar saka hannun jari a cikin robobin da ba za a iya cire su ba kamar su polylactic acid (PLA) da polyhydroxyalkanoate (PHA), suna fatan lalacewar yanayi zai rage aƙalla wasu sharar.
Amma duka sake yin amfani da su da kuma biopolymers suna fuskantar cikas. Duk da ƙoƙarin da aka yi na shekaru, ƙimar sake amfani da robobi a Amurka, alal misali, har yanzu bai kai kashi 10 cikin ɗari ba. Kuma biopolymers-sau da yawa samfuran fermentation-suna gwagwarmaya don cimma wannan aikin da sikelin masana'anta na ingantattun polymers na roba waɗanda ake nufin maye gurbinsu.
PBAT ya haɗu da wasu halaye masu fa'ida na polymers na roba da na halitta. An samo shi daga abubuwan da ake amfani da su na petrochemicals-tsarantaccen terephthalic acid (PTA), butanediol, da adipic acid-amma duk da haka yana da biodegradable. A matsayin polymer roba, ana iya samar da shi cikin sauri a babban sikeli, kuma yana da abubuwan da ake buƙata na zahiri don yin fina-finai masu sassauƙa waɗanda ke hamayya da waɗanda daga robobi na al'ada.
Kamfanin PTA na kasar Sin Hengli. Ba a fayyace cikakkun bayanai ba, kuma ba a iya samun kamfanin don yin tsokaci ba. A cikin bayanan kafofin watsa labaru da na kuɗi, Hengli ya ce daban-daban yana shirin shirin shuka t 450,000 ko kuma shuka 600,000 don robobin da ba za a iya lalata su ba. Amma lokacin da aka kwatanta kayan da ake buƙata don saka hannun jari, kamfanin suna PTA, butanediol, da adipic acid.
Gudun gwal na PBAT shine mafi girma a China. Kamfanin CHEMDO mai rarraba sinadarai na kasar Sin yana aiwatar da aikin samar da PBAT na kasar Sin zai kai kimanin t 400,000 a shekarar 2022 daga 150,000 t a shekarar 2020.
Lokacin aikawa: Fabrairu-14-2022