Imithandazo Yokusetyenziswa Kwesilimi Somthuthi Ophakathi: Ukulanda Imiphumela Yokuthuthukisa Kwezimali Nezanezulu
U usindiso lwendalo kumzimba wokuphila okunembuzi kuzosiza imithandazo emikhulu yezilimi zomthuthi ophakathi. Ngemuva kwebanga noma ukungavimbi kwamathola ethintelekayo, kunezidingo ezakhelwayo kumahluko angaphatha - njengebhage za monofilament ze-PP/PET, amabhage asebenzisa i-PLA endaweni yezinto ezihlangothini, neziziphiwo ezibuyekezwayo. I-monofilament extruders isebenza kahle lapha: ingasebenzisa izinhlayiya ezingalimile (njenge-PLA, PBAT) nezinhlayiya ezivuselelwe (njenge-rPET avumelekile kubhottle) ngelikala igcine ubunzima bethende (ubude obuyingxenye, ubunzima bokuphakama). Ngenkathi izimfanelo nezoshala zihamba ngokushiyapheka ukuthi zisebenzise ibhendi le"uphakathi olunembuzi", izothandi ezikwazi ukwenza izindleko eziphantsi zokwakha izimpahla ezenziwayo ngendlela enembuzi kuzoba yisahluko esibalulekile ekuthuthukiseni izimali, zibophelela kakhulu kumqondo wokuthengiselwa kwamakhadi.
Kwi ukuhlakanipha nokuba khona kwezimali , izimfishi zemfihlo zikhiqizwe ukuthi zifakaze kakhulu kumlando wamathuba amabiwekayo okulima. Ukuhlanjwa kwezimali ezivivinywa, ukulima okuphakeme, nokuthuthuka kwesimo sezindawo "eco-agriculture" (ukwenzela ukunciphisa umnyango wamaplastiki emhlabeni) kwenza udingo lwamathuba atholakala, angalunganga monofilaments. Iextruders ingakhiqiza amathambo atholakala kwi-UV esebenzayo ekubeni yishade ikhanda (ekulawuleni ubuyiselayo kwezithelo), amagugu atholakala ekulimini (kwezithelo, imithi yesigaba), nezibambiso ezingahleli zokugayaza kwamafilimu (ekuthinteni ukuthembeka). Ngaphandle kweziphumhlako ezincane, iextruders yezimali ezikhulu inokunquma izinto eziningi—okubaluleke kakhulu kumazwe amakhulu afuna izinzo eziyisisekelo—lapho kufakelwa ukuthi izimilo ziyathandabuzeka ngendlela ephathelene nempilo yomhlaba futhi ibe yisidingo sokulima.
U ukunwebo kwezimali ezihle kakhulu namasipala kuvula izindlela ezintsha zokuthutha kubagcini bezinhlamvu. Kukudla okutsha, umzekelo, ukwahlukanisa kobhethile lithiyamhi kudinga izinhlamvu eziphelele ezincane kakhulu PET/PP—izigcini nezibophelelo zokulahlekelwa kwezinkanyezi nokubamba kwezinkanyezi kungasebenze ngalawa mithetho emihle. Kwenhlekele yezempilo, izinhlamvu ezingenakho konjani (kusuka ku-PET esebenzayo emehlweni) ekugcineni kwemiphefumulo nasekuhleni kwebheshi yomkhuhlane kudinga izigcini ezingaba ngaphezu kwesivinini esine-mikrometer. Nangoba ekuhlinzeni kwebhola, izinhlamvu ezingatholanga ukushisa kumashini okuhlaba nokunquma kwebheshi yamanquma akhala kusebenza kakhulu kuzigcini ukuze baziphushe izimpendulo ezinezimali. Ngemuva kokuthutha kwalezi zinhlotsheni eziphakeme futhi zilahlele ukulayishwa kwinhlamvu ezifakelwayo, izigcini zenhlamvu ezingavumela ukuguquka nokwemthetho wendalo kuzothatha amandla emakhelwini aphakeme.
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