A da, sinadarin PFAS mai ruɓaɓɓen da aka lulluɓe akan saman ciki na wasu maruƙan abinci yana da takamaiman cutar kansa, don haka yawancin masana'antun kayan abinci mai sauri na takarda sun canza zuwa rufe saman takarda tare da Layer na robobin resin kamar PE, PP. , EVA, sarin, da sauransu. Fim ɗin zai iya cimma manufar hana ruwa da kuma hana mai, da kuma guje wa cutar da PFAS mai lalata ga lafiyar ɗan adam.Koyaya, a cikin yanayin yanayi, kamar PFAS, tsarin kwayoyin halittar waɗannan fina-finai na filastik ba su da ƙarfi kuma ba za a iya ƙasƙantar da su ba, don haka suna haifar da gurɓataccen filastik.#PE mai rufin kofi fan

Don haka, kamfanonin kasar Sin sun }ir}iro da kuma samar da fasahar kawar da iskar oxygen da ake amfani da su don kayayyakin polymer (kamar robobi, roba, da sinadarai), wanda zai iya cimma gurbacewar takin zamani.

Photo-oxygen biodegradable masterbatch shine mafi kusancin fasahar lalata halittu zuwa saurin lalacewa a cikin yanayin yanayi.Bugu da ƙari na 1% na iya samun raguwa cikin sauri ba tare da canza kayan aiki ba, kayan aikin samarwa, tsarin samarwa da kuma aikin gabaɗaya na kayan aiki.

Duk da haka, farashin al'ada polylactic acid PLA, PBAT, PBS, PHA da sauran cikakkun fasahar biodegradable ya karu da akalla 100% zuwa 200%, kuma cikakken aikin ba zai iya kaiwa ga aikin robobi na gargajiya ba, don haka kayan aiki, kayan aiki da kayan aiki da hanyoyin samarwa. bukatar a canza.

Za a iya amfani da fasahar fasahar biodegradation na hoto-oxygen don fina-finai na filastik kamar PE da sarin a cikin samar da kayan abinci mai rufaffiyar takarda mai sauri a cikin kasuwar kasar Sin.Rubutun takarda mai rufi #PE

Ƙa'idar fasaha na fasahar lalata yanayin hoto-oxygen

Fasahar fim din robobi na kamfanin kasar Sin fasahar daukar hoto-oxidative wani nau'in fasahar kere-kere ne da ke lalata gaba daya bisa fim din robobi da aka jefar a cikin yanayin yanayi.An tsara fasahar ne don kiyaye rayuwarta mai amfani a matsayin kayayyaki da injina, injina, shinge, bayyana gaskiya da sauran kaddarorin kasuwanci a duk tsawon rayuwarta, kuma tana ba da damar fina-finai na filastik su lalata su a ƙarƙashin yanayin yanayi bayan an watsar da su.

Fasahar ita ce ta ƙara photo-oxygen biodegradable masterbatch a cikin fim ɗin filastik don sanya shi zama fim ɗin olefin filastik mai ɗaukar hoto.Haɓaka saurin da ake saka atom ɗin oxygen a cikin sarƙoƙin polymer na polymers ɗin filastik.An karye polymers ɗin filastik zuwa ƙananan ƙwayoyin ƙwayoyin cuta a cikin yanayin iska, sannan kuma suna bazuwa ta hanyar ƙwayoyin cuta waɗanda ke ko'ina a cikin yanayin yanayi.#PE mai rufin takarda na kasa

Tsarin lalatawar fina-finai na filastik ta amfani da fasahar biodegradation na hoto-oxygen ana iya raba shi zuwa matakai biyu.
Mataki na farko: Fim ɗin filastik da aka ƙara tare da photo-oxygen biodegradable masterbatch yana amsawa tare da iskar oxygen a cikin iska, yana haifar da ƙari don kai hari kan sarkar carbon na polymer, kuma kashin bayan carbon yana oxidized don samar da gutsuttsura kwayoyin halitta tare da dangin kwayoyin halitta. kasa da 10,000 ko ƙasa da haka (Masana kimiyya a Turai da Japan sun yi imanin cewa oligomers tare da ƙwayar ƙwayar ƙwayar ƙwayar cuta ta ƙasa da 400,000 za a iya haɗiye su ta hanyar ƙwayoyin cuta).

A cikin wannan mataki, lalacewa shine tsarin kwayoyin halitta, wanda ke inganta shigar da kwayoyin oxygen a cikin kashin baya na carbon inda polymer ya karya don samar da ƙungiyoyi masu aiki daban-daban (kamar carbonoxylic acid, esters, aldehydes, da alcohols).

Babban nau'in polymer na kwayoyin yana canzawa daga sarkar macromolecule hydrophobic zuwa wata karamar sarkar kwayoyin halitta ta hydrophilic, wanda ke sa guntuwar sarkar kwayoyin halitta ta fi saukin lalacewa da narkewa ta hanyar kwayoyin cuta.# Danyen takarda kofin fan

Mataki na biyu: ƙananan ƙwayoyin cuta (kwayoyin cuta, fungi da algae) a cikin yanayi suna lalata fim ɗin filastik a matsayin tushen gina jiki, kuma a ƙarshe ya bazu zuwa carbon dioxide, ruwa da biomass.Lalacewar da ake yi a wannan mataki ana kiranta tsarin biodegradation.

Gwaji da Matsayi

Ko a cikin iska ko a cikin dakin gwaje-gwaje, raguwar ƙimar wannan fasaha na iya kaiwa fiye da 60%.A cikin ma'auni na ƙasa na GB/T 20197-2006 da GB/T 19277.1-2011, mafi girman buƙatun gwaji don ƙimar biodegradation shine 60%.

A cikin dakin gwaje-gwaje, don fina-finai tare da kauri na ƙasa da 15 μm, za su iya shiga mataki na biodegradation bayan yin kwaikwayon watanni 3 na tsufa na halitta.Tsufa da aka kwaikwayi na iya zaɓar tsufan UV ko tsufan fitilar xenon.

Shigar da matakin lalata halittu, mafi girman ma'auni na lalata polyolefin a duniya (PAS 9017: 2020) yana buƙatar raguwar ƙimar fiye da 90% a cikin kwanaki 730, wanda ya fi daidaitattun ƙasa a ƙasata.

Matsayin fasaha na fasahar fasahar biodegradation na hoto-oxidative na fim ɗin filastik nisa ya zarce ma'auni na ƙasa, wanda ya yi daidai da mafi girman ma'aunin lalata polyolefin a duniya (PAS 9017: 2020).

Bayan hada photo-oxygen biodegradable masterbatch cikin robobi resins kamar PE da sarin, kayayyakin da aka samar suna da biodegradable Properties, kuma su kwanaki 180 biodegradation kudi iya kai 60%, cika da kasa misali GB/T 38082-2019 bukata biodegradation kudi.Za a iya lalata shi gabaɗaya a ƙarƙashin yanayin zubar da iska, wurin zubar da ƙasa ko takin aerobic.# PE mai rufi takarda

Fasahar kawar da iskar oxygen na iya wuce gwajin ma'auni na kasar Sin masu zuwa: GB/T 20197-2006, GB/T 19277.1-2011, GB/T 38082-2019.A cikin layi tare da manufofin carbon dual na yanzu da falsafar.

Zabi na hanyoyin samar da kayayyakin fasahar halittu na kayan kwalliya daban-daban

Rufin EVA da murfin PP sun fi dacewa da fasahar lalata halittu na kamfanin (anaerobic + marine) na kasar Sin, ba shakka, ana iya amfani da fasahar sarrafa iskar oxygen na kamfanin kasar Sin.

Sarin resin, LLDPE, LDPE da sauran suttura sun fi dacewa da fasahar lalata hoto-oxygen biodegradation na kamfanonin kasar Sin.Tabbas, yana yiwuwa kuma a rage yawan zafin jiki na narkewa zuwa ƙasa da 310 ° C don sauƙaƙe ɗaukar (anaerobic + marine) fasahar lalata halittu.# Nanning Dihui Paper Products Co., Ltd.