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Wallis -PLA Mapepala
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| Kukula: | |
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Pofunafuna mayankho okhazikika, mapepala a PLA osawonongeka amawoneka ngati chiyembekezo, akusintha mawonekedwe a makadi okoma ndi zachilengedwe. Patsogolo pazatsopano, mapepalawa samangokhalira kukhazikika komanso amateteza chilengedwe.
PLA, kapena Polylactic Acid, ndi biodegradable thermoplastic yochokera ku zinthu zongowonjezwdwa monga chimanga wowuma kapena nzimbe. Ndizinthu zosunthika zomwe zimagwiritsidwa ntchito m'mafakitale osiyanasiyana chifukwa cha chilengedwe chake chokomera zachilengedwe komanso kuwonongeka kwachilengedwe.
Pamene nkhawa zakuwonongeka kwa chilengedwe ndi kuipitsa zikukula, pali chidwi chachikulu pakugwiritsa ntchito zinthu zokhazikika zomwe zimachepetsa kuwononga dziko lapansi. Ma sheet a PLA a Biodegradable amapereka njira ina yotheka ku mapulasitiki achikhalidwe, zomwe zimathandizira tsogolo lobiriwira.
Wopangidwa ndi zinthu zachilengedwe, mapepala a PLA amawonetsa kuyanjana kwachilengedwe m'mbali zonse. Kupanga kwawo kumaphatikizapo kutulutsa mpweya wochepa wa kaboni, potero kumachepetsa kuchuluka kwa kaboni.
Musalole kuti biodegradability yawo ikupusitseni; Mapepala a PLA amadzitamandira kukhazikika kodabwitsa, kuonetsetsa moyo wautali popanda kusokoneza kukhazikika. Kuchokera pamakhadi abizinesi mpaka pakuyika, kusinthasintha kwawo sadziwa malire.
Kupitilira magwiridwe antchito, mapepala a PLA amakopa chidwi ndi kukongola kwawo. Zopezeka m'mapangidwe osiyanasiyana komanso zomaliza, zimakweza kukopa kwazinthu zilizonse, zomwe zimapangitsa chidwi kwa olandira.
| Zakuthupi | PLA |
| Zosawonongeka | Inde |
| Makulidwe | 0.08mm, 0.15mm, 0.17mm, 0.2mm, 0.35mm kapena makonda |
| Kukula | 300 * 480mm kapena makonda |
| Kulimba kwamakokedwe | MD: ≥25.0Mpa |
| Kukalipa Pamwamba | 0.8μm ~ 3.0μm |
| Kugwiritsa ntchito | Khadi |
Kuphatikizira mapepala a PLA owonongeka mu njira zopangira makhadi kumatanthauza kudzipereka pakukhazikika. Posankha zinthu zothandiza zachilengedwe, mabizinesi amathandizira kuyesayesa kwapadziko lonse polimbana ndi kuwonongeka kwa chilengedwe.
Zida zamakadi zachikhalidwe nthawi zambiri zimathandizira kuipitsa komanso kuwunjika zinyalala. Komabe, pokumbatira mapepala a PLA, makampani amavomereza njira yobiriwira, kuchepetsa zotsatira zoipa pa chilengedwe.
Ndi chiwopsezo chomwe chikubwera cha kusintha kwa nyengo, chisankho chilichonse chimakhala chofunikira. Pogwiritsa ntchito mapepala a PLA, mabizinesi amatenga gawo lokhazikika pakusunga chilengedwe kuti mibadwo yamtsogolo.
Munthawi yomwe udindo wamabizinesi umalamulira kwambiri, mapepala a PLA amakhala ngati baji yaulemu kwa omwe adzipereka kuti azitha kukhazikika. Pogwirizana ndi machitidwe osamala zachilengedwe, mabizinesi amathandizira kutchuka kwawo ndikukopa ogula osamala zachilengedwe.
Pomwe maboma padziko lonse lapansi akukhwimitsa malamulo oteteza chilengedwe, mapepala a PLA amapereka yankho lovomerezeka kwa mabizinesi omwe akufuna kutsatira mfundo zokhwima. Mwa kukumbatira zinthu zokhazikika, makampani amachepetsa chiopsezo cha kusamvera ndikuwonetsetsa kuti zinthu zikuyenda bwino.
Kuyambira zokhumbira tsiku lobadwa mpaka moni watchuthi, mapepala a PLA ndiabwino popanga makhadi opatsa moni bwino zachilengedwe. Kusalala kwawo komanso kusindikizidwa kwawo kumawapangitsa kukhala abwino kuwonetsa zojambula zovuta komanso mauthenga ochokera pansi pamtima.
M'dziko lamakampani, ziwonetsero zoyamba ndizofunikira. Mapepala a Biodegradable PLA amapereka njira yokhazikika yosinthira makadi abizinesi apulasitiki achikhalidwe, zomwe zimapatsa chidwi makasitomala osamala zachilengedwe.
Pankhani yopereka mphatso, ulaliki ndi wofunika kwambiri. Mapepala a PLA amapangitsa kukopa kwa makhadi amphatso ndi maupangiri awo ochezeka ndi zachilengedwe, kumawonjezera phindu ku luso lonse lamphatso ndikuchepetsa kuwononga chilengedwe.
Mosiyana ndi makhadi a PVC kapena PET, omwe amabweretsa zoopsa zachilengedwe, mapepala a PLA ndi compostable komanso biodegradable. Amapereka njira yobiriwira popanda kusokoneza khalidwe kapena ntchito.
Ngakhale mapepala a PLA angakhale ndi mtengo wokwera pang'ono poyerekeza ndi zipangizo zamakono, ubwino wawo wautali wautali umaposa ndalama zoyamba. Mabizinesi amatha kukulitsa chithunzi chamtundu wawo ndikukopa makasitomala okonda zachilengedwe, zomwe zimapangitsa kuti makasitomala azikhala okhulupirika komanso okoma mtima.
Kafukufuku wopitilira ndi ntchito zachitukuko amayang'ana kwambiri pakukweza katundu ndi magwiridwe antchito a mapepala a PLA. Zatsopano mu sayansi yakuthupi ndi njira zopangira zimalonjeza kupititsa patsogolo kukhazikika ndi kugwiritsiridwa ntchito kwa zinthu zopangidwa ndi PLA.
Kupititsa patsogolo matekinoloje a bioplastic kuli ndi chiyembekezo chopanga zida zatsopano zokhala ndi zinthu zabwino komanso zochepetsera chilengedwe. Mapepala a PLA ndi chiyambi chabe cha kusintha kwakukulu kwa njira zina zokhazikika zapulasitiki zachikhalidwe.
Pomaliza, mapepala a PLA owonongeka amayimira kusintha kwa paradigm m'malo azinthu zamakadi. Kapangidwe kawo kothandiza zachilengedwe, kusinthasintha, komanso kukongola kwawo kumawayika ngati maziko a machitidwe okhazikika pakupanga makhadi. Mwa kugwiritsa ntchito mapepala atsopanowa, mabizinesi samangothandiza kuteteza chilengedwe komanso kukweza dzina lawo pamaso pa ogula mosamala.
Inde, mapepala a PLA amachokera kuzinthu zongowonjezwdwa ndikuwonongeka mwachilengedwe kukhala zinthu zopanda vuto pamikhalidwe yoyenera.
Ngakhale kuti PLA imatha kubwezeretsedwanso mwaukadaulo, imafunikira zida zapadera zopangira kompositi kuti ziwola bwino.
Inde, mapepala a PLA amapereka kusindikiza kwabwino kwambiri ndipo amatha kusinthidwa kuti agwirizane ndi mapangidwe osiyanasiyana a makhadi, kuchokera ku zojambula zovuta mpaka kusindikiza kochititsa chidwi.
Ngakhale makhadi opangidwa ndi PLA amatha kukhala ndi mtengo wokwera pang'ono, phindu lawo lazachilengedwe lanthawi yayitali limaposa ndalama zoyambira.
Yang'anani ziphaso monga ASTM D6400 kapena EN 13432, zomwe zimatsimikizira kuwonongeka kwa zinthu ndi compostability wa zida za PLA.
