Tare da haɓakar kimiyya da fasaha, sabbin nau'ikan kayan hulɗar abinci koyaushe suna fitowa a cikin rayuwar yau da kullun, kuma silicone yana ɗaya daga cikinsu.Misali, silicone spatulas don soyawa, gyare-gyaren yin biredi, ƙulla zoben tebur, da kayayyakin jarirai irin su na’urar wanke hannu, bambaro, da buroshin haƙori duk an yi su da silicone.A matsayin kayan talla mai aiki sosai, kayan tuntuɓar abinci da aka yi da silicone suna da halaye na nauyi, anti drop, mai sauƙin tsaftacewa, kuma mara tsatsa, kuma sun shahara sosai tsakanin masu siye da ke neman lafiya.Amma yawancin masu amfani kuma sun damu da cewa kayan aikin silicone waɗanda aka fallasa su ga yanayin zafi na dogon lokaci, sun haɗu da adadi mai yawa na abinci mai mai da acidic, kuma suna hulɗar kai tsaye da abinci, ƙaurawar filastik da hazo mai nauyi zai faru. a lokacin aikin dafa abinci?Menene adadin "haɗari"?Shin yana da guba ga jikin mutum idan an ci?Shin akwai wani garanti don inganci da amincin samfuran silicone?
Don fahimtar ingancin matsayin siliki da shebur na siliki da aka siyar da su a kasuwar Qingdao da samar wa masu amfani da ingantattun bayanan samfura masu inganci, Hukumar Kare Kayayyakin Kayayyakin Ciniki ta Qingdao a hukumance ta ƙaddamar da gwaje-gwajen kwatankwacin wasu manyan felun silicone da samfuran siliki a ƙarshen. 2021. A safiyar ranar 9 ga Maris da karfe 10 na rana, wani babban shirin yada ilimin kimiyya mai girma "Labobin Masu Amfani" tare da hadin gwiwar Hukumar Kare Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyaki, da Cibiyar Kula da Ingancin Ingancin Qingdao na Qingdao, da Peninsula Urban Daily sun kaddamar da "3.15 Special Urban Daily). Edition", wanda ya shiga dakin gwaje-gwaje na jiki da na sinadarai kuma kai tsaye ya kai hari kan wurin gwaji don "kama" ƙaura na kayan dafa abinci na silicone yayin dafa abinci mai zafi.
Jimlar yawan samfuran wannan gwajin kwatankwacin batches 20 ne, dukkansu ma'aikatan Hukumar Kare Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kasuwancin Qingdao ne suka siya su a matsayin masu siye na yau da kullun a manyan kantuna daban-daban, manyan kantuna, da kuma wuraren sayayya na e-commerce kamar JD. da Tmall a Qingdao.Daga cikin su, batches 10 na silicone shebur sun fito ne daga manyan kantunan kan layi;Batches 10 na silicone molds, batches 7 daga kantunan siyayya ta layi, da batches 3 daga kantunan siyayya ta kan layi.
An gudanar da gwajin gwajin ne a Cibiyar Binciken Ingancin Samfurin Qingdao da Cibiyar Bincike, kuma abubuwan gwajin sun haɗa da amfani da potassium permanganate, ƙaura gabaɗaya, karafa masu nauyi (a cikin Pb), ƙaura na filastik (DEHP, DAP, DINP, DBP), da abubuwan da za a iya canjawa wuri (DBP). antimony Sb, arsenic As, barium Ba, cadmium Cd, chromium Cr, gubar Pb, mercury Hg, selenium Se).Ma'auni sun haɗa da GB 4806.11-2016 "Ma'aunin Tsaron Abinci na Ƙasa don Kayan Rubber da Samfura a Tuntuɓar Abinci", GB 9685-2016 "Ka'idodin Tsaron Abinci na Ƙasa don Amfani da Ƙarfafawa a Tuntuɓar Kayan Abinci da Kayayyaki", GB 31604.30-2016 "Ma'aunin Tsaron Abinci na Ƙasa don Ƙaddamarwa da Hijira na Phthalates a Tuntuɓar Kayan Abinci da Kayayyakin Abinci" GB 6675.4-2014 "Tsaron Kayan Wasan Wasa - Sashe na 4: Hijira na Musamman Abubuwa", da sauransu.
A cikin wannan fitowar ta "Lab ɗin Masu amfani", za mu bincika kai tsaye kan ƙaura na kayan dafa abinci na silicone yayin dafa abinci, tare da bayyana ainihin nau'in sa, wanda shine babban buɗe ido da gogewa mai ban sha'awa.Dangane da abubuwa masu cutarwa irin su ƙarfe mai nauyi da robobi waɗanda ke da matuƙar damuwa ga ƴan ƙasa da masu amfani da su, gwajin ya ƙara haɓaka gwaji na musamman tare da amfani da na'urori da kayan aiki na ci gaba don auna daidai kuma daidai, ta amfani da kimiyya don dawo da gaskiya.
Han Bing, shugaban aikin gwaji na kwatankwacin Hukumar Kare Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kayayyakin Kasuwa ta Qingdao, da kuma Injiniya Sun Chunpeng, daga cibiyar duba ingancin ingancin karamar hukumar Qingdao, sun ziyarci dakin watsa shirye-shirye kai tsaye na dakin gwaje-gwajen masu amfani da kayayyaki, don fitar da sakamakon karshe na sakamakon binciken. gwaji da samar da ingantaccen jagorar mabukaci.Ya kamata a lura cewa sakamakon wannan gwajin kwatankwacin suna da alhakin samfuran kawai kuma ba sa wakiltar ingancin sauran samfuran ko batches na alamar.Babu wani rukunin da aka yarda ya yi amfani da kwatancen sakamakon gwajin don tallatawa ba tare da izini ba;'Farashin' samfurin shine kawai farashin sayan a wancan lokacin.
A cikin dakin gwaje-gwaje na zahiri da sinadarai na Cibiyar Binciken Ingancin Qingdao, an fara aika batches 20 na samfuran samfuran silicone zuwa tanda mai digiri 220 kuma sun tsufa a cikin iska mai zafi na sa'o'i 10, suna kwaikwayon yanayin yanayin zafi na samfuran silicone yayin amfani da yau da kullun.Bayan sa'o'i 10, fitar da samfurori 20 kuma kwantar da su.Yanke wani yanki na gel silica daga kowane samfurin 20 bisa ga wani gwajin gwaji don shirye-shiryen samfurin.
Gwajin samfurin shekaru a cikin iska mai zafi a 220 ° C na 10 hours
Lokacin amfani da spatulas na silicone da gyare-gyare, mafi mahimmancin damuwa ga 'yan ƙasa shine ko wani abu zai yi ƙaura.Aikin gwaji na 'jimlar ƙaura' na iya ɗaukar daidai adadin adadin abubuwan da ba su da ƙarfi a cikin kayan hulɗar abinci waɗanda ke ƙaura zuwa cikin abincin.
Na ga masu fasaha na dakin gwaje-gwaje suna nutsar da silikin da aka yanke a cikin na'urar kwaikwayo na abinci na 4% acetic acid da 50% ethanol, suna jika shi na tsawon awanni 4 a 100 ℃, sannan suna sanya maganin jiƙa a cikin kwanon ruwa mai ƙafewa har sai ya bushe ya bushe.A wannan lokacin, wasu daga cikin kasan kwanon da ake ƙafewa kamar an tsabtace su a hankali, babu tabo;Wasu za a iya gani da ido tsirara tare da ɗan ƙaramin adadin farin ragowar da aka haɗe, wanda yayi kama da "sikelin".
Ragowar da ke ƙasan tasa mai ƙafewa shine fitar da samfuran silicone
Yin amfani da acetic acid da ethanol don kwaikwayi yanayi mai mai da acidic wanda ake dafa kayan siliki a cikinsa, ragowar da kowa ke gani shine abubuwan da ba su da ƙarfi waɗanda ke ƙaura."Sun Chunpeng, wani injiniya daga Cibiyar Binciken ingancin Qingdao, ya gabatar da cewa, abubuwan da ba su da ƙarfi a cikin kayan hulɗar abinci suna ƙaura zuwa abinci, wanda zai iya haifar da wari cikin sauƙi, yana shafar dandano abinci har ma yana shafar lafiyar jikin mutane.
Koyaya, jimillar bayanan ƙaura da aka samu daga batches 20 na spatula na roba da samfuran siliki a cikin wannan gwaji har yanzu yana da kwantar da hankali - jimlar ƙaura na spatula na silicone galibi an tattara su a cikin kewayon 1.5 mg/square decimeter zuwa 3.0 mg/square decimeter , yayin da jimlar ƙaura na silicone mold ya fi mayar da hankali a cikin kewayon 1.0 mg/square decimeter zuwa 2.0 mg/square decimeter, duk wanda ya dace da bukatun kasa na GB 4806.11-2016 (≤ 10 mg / square decimeter).Bugu da ƙari, sakamakon jimlar ƙaura na silicone spatula da silicone mold bai nuna canjin yanayi tare da farashin samfurin ba.
Gwajin "cinyewar potassium permanganate" wani gwaji ne wanda zai iya ba da damar ƙaura na samfuran silicone don "nuna ainihin siffar su".Ma'aikatan gwajin sun nutsar da silica gel da aka yanke a cikin ruwa a 60 ℃ na 2 hours.Maganin jiƙa da aka titrated tare da potassium permanganate bayani, da kuma yawan amfani da potassium permanganate an ƙaddara ta ƙarshe ta hanyar canza launi, lissafin adadin, da dai sauransu.
Ragowar da ke ƙasan tasa mai ƙafewa shine fitar da samfuran silicone
Yin amfani da acetic acid da ethanol don kwaikwayi yanayi mai mai da acidic wanda ake dafa kayan siliki a cikinsa, ragowar da kowa ke gani shine abubuwan da ba su da ƙarfi waɗanda ke ƙaura."Sun Chunpeng, wani injiniya daga Cibiyar Binciken ingancin Qingdao, ya gabatar da cewa, abubuwan da ba su da ƙarfi a cikin kayan hulɗar abinci suna ƙaura zuwa abinci, wanda zai iya haifar da wari cikin sauƙi, yana shafar dandano abinci har ma yana shafar lafiyar jikin mutane.
Koyaya, jimillar bayanan ƙaura da aka samu daga batches 20 na spatula na roba da samfuran siliki a cikin wannan gwaji har yanzu yana da kwantar da hankali - jimlar ƙaura na spatula na silicone galibi an tattara su a cikin kewayon 1.5 mg/square decimeter zuwa 3.0 mg/square decimeter , yayin da jimlar ƙaura na silicone mold ya fi mayar da hankali a cikin kewayon 1.0 mg/square decimeter zuwa 2.0 mg/square decimeter, duk wanda ya dace da bukatun kasa na GB 4806.11-2016 (≤ 10 mg / square decimeter).Bugu da ƙari, sakamakon jimlar ƙaura na silicone spatula da silicone mold bai nuna canjin yanayi tare da farashin samfurin ba.
Gwajin "cinyewar potassium permanganate" wani gwaji ne wanda zai iya ba da damar ƙaura na samfuran silicone don "nuna ainihin siffar su".Ma'aikatan gwajin sun nutsar da silica gel da aka yanke a cikin ruwa a 60 ℃ na 2 hours.Maganin jiƙa da aka titrated tare da potassium permanganate bayani, da kuma yawan amfani da potassium permanganate an ƙaddara ta ƙarshe ta hanyar canza launi, lissafin adadin, da dai sauransu.
Sakamakon gwaji ya nuna cewa yawan amfani da potassium permanganate a cikin shebur na silicone ya fi mayar da hankali a cikin kewayon 2.0 MG / kg zuwa 3.0 mg / kg, yayin da amfani da potassium permanganate a cikin ƙwayoyin silicone ya fi mayar da hankali a cikin kewayon 1.5 mg / kg. zuwa 2.5 mg / kg, wanda ya dace da buƙatun ma'auni na GB 4806.11-2016 (≤ 10 mg / kg).Sakamakon ƙimar amfani da potassium permanganate na siliki da shebur na silicone ba su nuna canjin yanayi tare da farashin samfurin ba.
>>>Binciken kayan aiki: An gano karafa masu nauyi, kuma adadin adadin ya bi ka'idodin ƙasa
Shin silicone kitchenware zai saki abubuwa masu guba kamar ƙarfe masu nauyi da filastik lokacin dafa abinci?Wannan wani babban abin damuwa ne ga 'yan kasa.Gwajin gano manyan karafa da masu filastik ya kasu kashi biyu manyan matakai: shirye-shiryen samfurin hannu da bincike tare da kayan ganowa.Yana da kyau a faɗi cewa kamar yadda ƙarfe mai nauyi ke damun masu amfani da shi, wannan gwaji ya ƙaru musamman gano ƙananan karafa.
Dangane da buƙatun ma'auni na wajibi na ƙasa GB 4806.11-2016 "National Food Safety Standard Rubber Materials and Products in Contact with Food", bayan gwaji da bincike, duk sakamakon da nauyi karfe (lasafta a matsayin gubar) gwaji abubuwa na 20 batches. na silicone shebur da silicone molds hadu da bukatun.
Lokacin aikawa: Mayu-18-2023
