Ma polity angwiro - ma polima omwe amasamala zinthu zolimbitsa thupi komanso zotsatira za chilengedwe - kulibe, koma polybutlene terefite (pbat) ali pafupi ndi ungwiro wangwiro.
Pambuyo pazaka zambiri zolephera kuletsa zinthu zawo kuthamangitsidwa ndi nyanja zamchere ndi nyanja, zopangidwa ndi polymer zikukakamizidwa kutenga udindo. Ambiri akusintha zoyesayesa zawo zolimbikitsa kubwezeretsanso kuti athe kutsutsidwa. Makampani ena akuyesera kuthana ndi vuto la zinyalala pogulitsa mapulaneti a biodegradges monga polylactic acid (plu) ndi polyhyhyroxy mafuta a acids (PER), m'chiyembekezo chakuti kuwonongeka kwachilengedwe kumathetsa zinyalala zina.
Koma onse omwe amabwezeretsanso ndi ma biopolill amakumana ndi zopinga. Mwachitsanzo, ngakhale atayesedwa zaka zambiri, United States idalinso yochepera 10 peresenti ya mapulaneti. Ndipo ma polio-ochokera ku Bio - nthawi zambiri amapanga nayonso mphamvu - akuvutika kukwaniritsa magwiridwe antchito ndi kukula kwa ma polintrars omwe amapangidwira kuti asinthe.
PBAT imaphatikiza zina mwazopindulitsa za opanga ma polima ndi bio. Zimachokera ku mankhwala wamba a perochemical - oyengeka acid acid (pta), andaniil ndi adisic acid, koma ndi biodegrable. Monga popanga zopanga, imatha kukhala yosavuta, ndipo ili ndi thupi lofunikira kuti lipange mafilimu osinthika ofanana ndi apulasitiki.
Chidwi ku PBAT chikukwera. Opanga Okhazikika Monga Basmany's Novamont akuwona akuwona nthawi yowonjezeredwa pambuyo polera msika. Amalumikizidwa ndi theka lopitilira theka la Asia omwe amayembekeza bizinesi kuti maboma azitukuka chifukwa maboma achigawo akamakakamiza.
Marc Currugeggen, yemwe kale ceo wa opanga a pulairi ndipo tsopano anali wochita pawokha Pbs) ndi opikisana nawo. Ndipo zikufunika kukhala ndi udindo limodzi ndi ma pulasitiki awiri ofunikira kwambiri osafunikira, omwe akuti akupanga zopanga zolimba chifukwa cha ntchito zolimba.
Ramani nataran, pulofesa wamafuta aku Michigan State University, adatero PBAT PROMICE - amachokera ku elt skeleton m'malo osatetezeka. Malangizo a ester amangokhala ndi ma hydrolyzyzed ndikuwonongeka ndi ma enzyme.
Mwachitsanzo, polylactic acid ndi gawo ndi polysiters omwe amanyoza pamene ma bondo awo amatuluka. Koma polsya odziwika kwambiri - polyethylene terephthalate (pet), ogwiritsidwa ntchito mu ulusi ndi mabotolo mabotolo a soda - samasweka mosavuta. Izi ndichifukwa mphete zonunkhira mu mafupa ake zimachokera ku PTA. Malinga ndi Narayan, mphete zomwe zimapangitsa kuti ziyende zizipezekanso pet hydrophobic. "Madzi siophweka kulowa ndipo umachepetsa njira yonse ya hydlysis," adatero.
Basf amapangitsa polybutlene terephthalate (PBB), polyester yopangidwa kuchokera ku Kandaeleol. Ofufuzawo amayang'ana polymergraded polymergled. Anasinthanitsa ndi pta mu pbt ndi adipose diacid glycolic acid. Mwanjira imeneyi, madera onunkhira a polymer amadzilekanitsidwa kuti athe kukhala a biadegrable. Nthawi yomweyo, pta okwanira amasiyidwa kuti apatse mphamvu zamtundu wa polymer.
Narayan amakhulupirira kuti PBAT ndiyabwino kwambiri kuposa pla, yomwe imafunikira kompositi yopanga mafakitale. Koma sizingathe kupikisana ndi kapala kamene kamapezeka, komwe ndi biodegrad mikhalidwe, ngakhale m'malo okhala m'madzi.
Akatswiri ambiri amafananiza katundu wa pbat mpaka kutsika-culveylene polyethylene, polymer polymer omwe amagwiritsidwa ntchito popanga mafilimu, monga matumba a zinyalala.
PBAT nthawi zambiri yosakanikirana ndi pla, polymer yolimba ndi polystyrene-monga katundu. Mtundu wa ecovio wa ecovio umakhazikika pakuphatikiza uku. Mwachitsanzo, mawu a cerruggen akuti chikwama chogulitsira chogulitsira nthawi zambiri chimakhala ndi 85% pbat ndi 15% pl.
Novamont amawonjezera gawo lina kwa Chinsinsi. Kampani imasakaniza PBAT ndi zina za biodacgrad aripac orsomatic ndi wowuma kuti apangitse ma resin pazinthu zina.
Stefano Mlema, manejala atsopano a kampani yatsopano, anati: "Zaka 30 zapitazi, Novamont adayang'ana pa ntchito komwe kuwonongeka kungathetse phindu pa malonda omwewo. "
Msika waukulu wa pbat ndi mulch, womwe umafalikira mozungulira mbewu kuti muchepetse namsongole ndikusunga chinyezi. Kanema wa polyethylene amagwiritsidwa ntchito, ziyenera kukokedwa ndipo nthawi zambiri zimayikidwa m'manda. Koma mafilimu a biodegradgradgradgle amatha kulimidwa molunjika m'nthaka.
Msika wina waukulu ndi matumba opondera a zinyalala kuti adye chakudya ndi kutolera nyumba ndi zinyalala.
Matumba ochokera makampani monga biobag, omwe apezeka posachedwa ndi Novamonti, adagulitsidwa ku Ogulitsa kwa zaka zambiri.
Post Nthawi: 26-11-21