Kwixesha elidlulileyo, into efakwe iperfluorinated iPFAS egqunywe kumphezulu wangaphakathi wokupakisha ukutya inomhlaza othile, uninzi lwabavelisi bephepha lokupakisha ukutya okukhawulezayo batshintshele ukugquma umphezulu wephepha kunye nomaleko weplastiki yentlaka efana ne-PE, PP. , I-EVA, i-sarin, njl. Ifilimu inokufezekisa injongo yokungangeni kwamanzi kunye ne-oyile, kwaye igweme ingozi ye-perfluorinated substance PFAS kwimpilo yabantu.Nangona kunjalo, kwindawo yendalo, njengePFAS, ubume bemolekyuli bezi filimu zeplastiki zizinzile kwaye azikwazi ukuthotywa, ngaloo ndlela zenza ungcoliseko lweplastiki emhlophe.#PE igqunywe ngekomityi yephepha

Ke ngoko, iinkampani zaseTshayina ziphuhlise kwaye zavelisa itekhnoloji ye-photo-oxygen biodegradation yezixhobo zepolymer (ezifana neeplastiki, irabha, kunye nemicu yeekhemikhali), ezinokufikelela kwi-biodegradation yokulahla inkunkuma kunye nokuthotywa komgquba.

Ifoto-oxygen biodegradable masterbatch yeyona ikufutshane itekhnoloji yokuthotywa kwebhayoloji ukuwohloka ngokukhawuleza kwendalo.Ukongezwa kwe-1% kunokufezekisa ukuthotywa ngokukhawuleza ngaphandle kokutshintsha izinto eziphathekayo, izixhobo zokuvelisa, inkqubo yokuvelisa kunye nokusebenza ngokubanzi kwezinto.

Nangona kunjalo, iindleko ze-polylactic acid yendabuko ye-PLA, i-PBAT, i-PBS, i-PHA kunye nezinye iitekhnoloji ezihlanjululwayo zinyuka ubuncinane nge-100% ukuya kwi-200%, kwaye ukusebenza okubanzi akukwazi ukufikelela ekusebenzeni kweeplastiki zendabuko, ngoko ke izixhobo, izixhobo zokuvelisa kunye neenkqubo zokuvelisa. kufuneka kutshintshwe.

Itekhnoloji ye-photo-oxygen biodegradation yeefilimu zeplastiki ezifana ne-PE kunye ne-sarin inokusetyenziselwa ukuveliswa kokupakishwa kokutya okukhawulezayo kwamaphepha kwimarike yaseTshayina.#Umqulu wephepha oqatywe ngePE

Umgaqo wobugcisa we-photo-oxygen biodegradation technology

Itekhnoloji yefilimu yeplastiki yenkampani yaseTshayina yefoto-oxidative biodegradation luhlobo lwetekhnoloji entsha ethi yonakale ngokupheleleyo ngokusekwe kwifilimu yeplastiki elahlwe kwindalo esingqongileyo.Itekhnoloji yenzelwe ukugcina ubomi bayo obuluncedo njengempahla yorhwebo kunye noomatshini bayo, oomatshini, umqobo, ukungafihli kunye nezinye iipropathi zorhwebo kumjikelezo wobomi bayo bonke, kwaye ivumela iifilimu zeplastiki ukuba ziphuculwe phantsi kweemeko zendalo emva kokulahlwa.

Itekhnoloji yokongeza ifoto-oxygen biodegradable masterbatch kwifilimu yeplastiki ukuyenza isebenze njengefoto-oxygen biodegradable plastic film olefin film.Ukuphucula isantya apho ii-athomu ze-oksijini zifakwe kwii-polymer chain of polymers zeplastiki.Iipolymers zeplastiki ziqhekezwe zibe zizinto ezincinci zemolekyuli kwindawo ene-aerobic, kwaye emva koko ziboliswe zii-microorganisms ezikuyo yonke indawo kwindawo yendalo.#Umqulu wephepha ogqunywe ngasezantsi

Inkqubo yokuthotywa kweefilimu zeplastiki usebenzisa iteknoloji ye-photo-oxygen biodegradation inokohlulwa ibe ngamanqanaba amabini.
Inqanaba lokuqala: Ifilimu yeplastiki eyongezwe kunye ne-photo-oxygen biodegradable masterbatch isabela neoksijini emoyeni, ibangela ukuba isongezo sihlasele ikhonkco lekhabhoni yepolymer, kwaye umqolo wekhabhoni udityanisiwe ukwenza amaqhekeza emolekyuli kunye nobunzima bemolekyuli. ngaphantsi kwe-10,000 okanye ngaphantsi (Izazinzulu zaseYurophu naseJapan zikholelwa ukuba i-oligomers ene-molecular mass engaphantsi kwe-400,000 inokuginywa yi-microorganisms).

Kule nqanaba, ukuthotywa yinkqubo ye-abiotic, ekhuthaza ukufakwa kwee-athomu ze-oksijini kwi-carbon backbone apho i-polymer iphuka ukuze yenze amaqela ahlukeneyo asebenzayo (njenge-carboxylic acids, esters, aldehydes, kunye ne-alcohols).

I-polymer ye-molecular ephezulu iyatshintsha ukusuka kwi-hydrophobic macromolecule chain ukuya kwi-hydrophilic encinci ye-molecular chain, eyenza ukuba iziqwenga ze-molecular chain zikhutshwe kwaye zigaywe yibhaktheriya.# Ifeni yekomityi yephepha yezinto ezikrwada

Inqanaba lesibini: ii-microorganisms ezihlala kwindawo yonke (iibhaktheriya, umngundo kunye ne-algae) kwindalo zibolisa ifilimu yeplastiki njengomthombo wesondlo, kwaye ekugqibeleni iyibolise ibe yikharbon diokside, amanzi kunye ne-biomass.Ukuthotywa kwesi sigaba kubizwa ngokuba yinkqubo yokuthotywa kwebhayoloji.

Uvavanyo kunye neMigangatho

Ingaba kumoya ovulekileyo okanye kwibhubhoratri, izinga lokuthotywa kobu buchwepheshe linokufikelela ngaphezu kwe-60%.Kwimigangatho kazwelonke yelizwe lam i-GB/T 20197-2006 kunye ne-GB/T 19277.1-2011, iimfuno eziphakamileyo zovavanyo lwezinga le-biodegradation yi-60%.

Kwimeko yebhubhoratri, kwiifilimu ezinobunzima obungaphantsi kwe-15 μm, zinokungena kwinqanaba le-biodegradation emva kokulinganisa iinyanga ezi-3 zokuguga kwendalo.Ukuguga okufanisiweyo kunokukhetha ukuguga kwe-UV okanye ukuguga kwesibane se-xenon.

Ukungena kwinqanaba lokuthotywa kwebhayoloji, owona mgangatho uphambili wokuthotywa kwepolyolefin kwihlabathi (i-PAS 9017: 2020) ifuna izinga lokuthotywa elingaphezulu kwama-90% kwiintsuku ezingama-730, eliphezulu kakhulu kunomgangatho wesizwe kwilizwe lam.

Inqanaba lobuchwephesha leteknoloji ye-photo-oxidative biodegradation yefilimu yeplastiki yodlula kude umgangatho wesizwe, ohambelana nowona mgangatho uphambili wokuthotywa kwe-polyolefin kwihlabathi (PAS 9017: 2020).

Emva kokuxuba i-photo-oxygen biodegradable masterbatch kwi-resins zeplastiki ezifana ne-PE kunye ne-sarin, iimveliso eziveliswayo zineempawu ezinokuthi zenzeke, kwaye izinga le-biodegradation leentsuku ezili-180 linokufikelela kwi-60%, ukuhlangabezana nomgangatho wesizwe we-GB/T 38082- 2019 ofunekayo izinga lokuthotywa kwezinto eziphilayo.Inokonakaliswa ngokupheleleyo phantsi kweemeko zokulahlwa komoya ovulekileyo, indawo yokulahla inkunkuma okanye i-aerobic composting.# Iphepha elenziwe ngePE

I-teknoloji ye-Photo-oksijeni ye-biodegradation inokupasa uvavanyo lwale migangatho yesizwe yaseTshayina ilandelayo: GB/T 20197-2006, GB/T 19277.1-2011, GB/T 38082-2019.Ngokuhambelana nomgaqo-nkqubo wekhabhoni wangoku kunye nefilosofi.

Ukukhethwa kweeNdlela zeTekhnoloji ye-Biodegradation kwiiNgqungquthela ezahlukeneyo

I-EVA yokwambathisa kunye ne-PP yokwambathisa ifaneleke ngakumbi kwitekhnoloji ye-biodegradation yenkampani yaseTshayina (i-anaerobic + marine), ngokuqinisekileyo, itekhnoloji ye-photo-oxygen biodegradation yenkampani yaseTshayina nayo ingasetyenziswa.

I-Sarin resin, i-LLDPE, i-LDPE kunye nezinye iingubo zifanelekile ngakumbi kwi-teknoloji ye-photo-oxygen biodegradation yeenkampani zaseTshayina.Kakade ke, kuyenzeka kwakhona ukunciphisa iqondo lobushushu lokunyibilika libe ngaphantsi kwe-310 °C ukuququzelela ukwamkelwa kobuchwephesha be-biodegradation (i-anaerobic + marine).#Nanning Dihui Paper Products Co., Ltd.