Ilaphu le-PTFE elakhiwe ngefiberglass likhuselekile ngokwenene kuqhagamshelwano lokutya xa lenziwe ngokufanelekileyo kwaye lisetyenziswa ngokwemigaqo. Ezi zinto zintsha zidibanisa iipropati ezingabambekiyo ze-PTFE (i-polytetrafluoroethylene) kunye namandla kunye nokuqina kwe-fiberglass, ukudala umgangatho oguquguqukayo ofanelekileyo kwizinto ezahlukeneyo ezinxulumene nokutya. I-FDA ivume i-PTFE yoqhagamshelwano lokutya, kwaye xa isetyenziswe ngokuchanekileyo kwi-fiberglass, igcina ubume bayo obungangeni. Nangona kunjalo, kubalulekile ukuqinisekisa ukuba i-coating ayiguquki kwaye isetyenziswa phakathi komgangatho wobushushu obucetyiswayo ukuthintela nakuphi na ukuthotywa okunokwenzeka. Xa zithathwe kubavelisi abahloniphekileyo ababambelela kumanyathelo olawulo olungqongqo olusemgangathweni, i-PTFE i-fiberglass egqunywe ngeglasi ibonelela ngesisombululo esikhuselekileyo, esingenatyhefu, kunye nesisebenzayo sokwenza ukutya kunye namashishini okupakisha.
![Ilaphu eliNgqunyiweyo le-PTFE]( "PTFE Coated Fabric")
Ukuqonda i-PTFE Coated Fiberglass kunye neePropati zayo zoKhuseleko lokutya
Ukuqulunqwa kunye neNkqubo yokuVelisa i-PTFE Coated Fiberglass
Ilaphu le-PTFE eligqunywe nge-fiberglass yimathiriyeli edibeneyo edibanisa iimpawu ezingaqhelekanga zazo zombini i-PTFE kunye ne-fiberglass. Inkqubo yokuvelisa iqala ngesiseko somgangatho we-fiberglass elukiweyo, enika amandla kunye nokuzinza komda. Le substrate ye-fiberglass ifakwe kwi-PTFE, eyaziwa ngokuba yiTeflon, ngenkqubo ekhethekileyo eqinisekisa ukuba i-uniform kunye neyokuhlala ihlala njalo.
I-PTFE yokwambathisa isetyenziswa kusetyenziswa iindlela ezahlukeneyo, kubandakanywa ukutyabeka kwediphu, ukugquma kokutshiza, okanye ukugquma ngerola. Emva kokufakwa kwesicelo, izinto eziphathekayo zifumana inkqubo yonyango lobushushu elibizwa ngokuba yi-sintering. Le nkqubo yobushushu obuphezulu iyanyibilika iinqununu ze-PTFE, zibangele ukuba zihambe kwaye zenze indawo eqhubekayo, egudileyo ebambelela ngokuqinileyo kwi-fiberglass substrate.
Isiphumo sisixhobo esixhamlayo kwi-non-stick, i-chemical-resistant properties ye-PTFE kunye namandla kunye nokumelana nobushushu be-fiberglass. Le ndibaniselwano yahlukile yenza i-PTFE egqunywe ngefiberglass ibe lolona khetho lufanelekileyo kwizicelo ezininzi, kubandakanywa nezo zibandakanya uqhagamshelwano lokutya.
Ukunganyanzeli kweMichiza kunye nokuNgena-Reactivity kunye neZinto zokutya
Esinye sezizathu eziphambili ze -PTFE ezityatyekwe ngelaphu le-fiberglass lithathwa njengelikhuselekileyo kuqhagamshelwano lokutya kukungangeni kwayo kwemichiza. I-PTFE yaziwa ngokungasebenzi kwayo, okuthetha ukuba ayidibani neekhemikhali nezinto ezininzi, kuquka nokutya.
Olu uzinzo lwekhemikhali lubangelwa yibhondi eyomeleleyo ye-carbon-fluorine kwi-molecule ye-PTFE. Ezi zibophelelo zinamandla kangangokuba zixhathisa ukuphuka okanye ukusabela kunye nezinye izinto, naphantsi kwamaqondo okushisa aphezulu okanye phambi kweekhemikhali ezinobundlobongela. Ngenxa yoko, i-PTFE coated fiberglass ayivusi izinto ezinobungozi ekutyeni, kwaye ayifunxa amavumba okanye incasa kwizinto zokutya.
Ubume bokungasebenzi be-PTFE bukwathetha ukuba ayikukhuthazi ukukhula kwebhaktiriya, iyenza ibe lolona khetho lubalaseleyo kwiindawo zokulungisa ukutya apho ucoceko lubalulekile. Le propathi, idityaniswe nomphezulu wayo ogudileyo, ongeyo-porous, yenza i-PTFE coated fiberglass kube lula ukuyicoca nokugcina kwiimeko ezikhuselekileyo zokutya.
Ukumelana noBuqondo kunye noZinzo kwiiNdawo zokuLungisa ukutya
I-PTFE egqunywe nge-fiberglass ibonisa ukumelana nobushushu obumangalisayo, eyona nto ibalulekileyo kukufaneleka kwayo kwizicelo zoqhagamshelwano lokutya. Izinto eziphathekayo ziyakwazi ukumelana namaqondo okushisa ukusuka kwi--100 ° F ukuya kwi-500 ° F (-73 ° C ukuya kwi-260 ° C) ngaphandle kokuthotywa okukhulu okanye ukulahlekelwa kwepropati.
Olu luhlu lubanzi lobushushu lwenza i-PTFE i-fiberglass egqunywe nge-fiberglass ilungele izicelo ezahlukeneyo zokulungisa ukutya, ukusuka kwiqhwa ukuya ekubhakeni. Kwiindawo ezibandayo, izinto zihlala zibhetyebhetye kwaye azibi brittle. Kwizicelo eziphezulu zokushisa, igcina iipropati zayo ezingenazintambo kunye nokunyaniseka kwesakhiwo ngaphandle kokukhulula izinto ezinobungozi.
Nangona kunjalo, kubalulekile ukuqaphela ukuba ngelixa i-PTFE ngokwayo inokumelana namaqondo obushushu aphezulu, elona qondo liphezulu lobushushu elicetyiswayo le-PTFE coated fiberglass lihlala lijikeleze i-500 ° F (260 ° C). Ngaphaya kobu bushushu, kukho umngcipheko wokuba i-coating iqala ukuthotywa, enokuthi ibeke esichengeni iipropati zayo ezikhuselekileyo ekutyeni.
Ukuvunywa okuLawulwayo kunye neMigangatho yoShishino lweZixhobo zoNxibelelwano lokuTya
IMimiselo ye-FDA kunye nokuVunywa kwe-PTFE kwizicelo zoQhagamshelwano lokuTya
I-US Food and Drug Administration (FDA) iye yavavanya ngokubanzi i-PTFE kunye nokufaneleka kwayo kwizicelo zoqhagamshelwano lokutya. I-PTFE idweliswe kwi-FDA's Code of Federal Regulations (CFR) Title 21, ngokukodwa kwi-parts 177.1380 kunye ne-177.1550, equka i-fluorocarbon resins.
Le mimiselo ichaza iimeko apho i-PTFE ingasetyenziswa ngokukhuselekileyo kwizicelo zoqhagamshelwano lokutya. Bagubungela imiba enje ngemathiriyeli ekrwada evumelekileyo, izixhobo zokusebenza, kunye neendlela zokwenza. Ulwamkelo lwe-FDA lusekwe kuphando olubanzi lwezenzululwazi kunye nezifundo eziyityhefu ezibonise ukhuseleko lwe-PTFE xa lusetyenziswa njengoko lucetyiwe.
Kubalulekile ukuqaphela ukuba ngelixa i-FDA ivuma i-PTFE kuqhagamshelwano lokutya, abavelisi be-PTFE coated fiberglass kufuneka baqinisekise ukuba iimveliso zabo ezithile ziyahlangabezana nayo yonke imimiselo efanelekileyo. Oku akubandakanyi kuphela ukutyabeka kwe-PTFE kodwa kunye ne-fiberglass substrate kunye nazo naziphi na izongezo okanye izixhobo zokuncedisa ezisetyenziswa kwinkqubo yokuvelisa.
IManyano yaseYurophu kunye neminye iMigangatho yaMazwe ngaMazwe yeZixhobo zoNxibelelwano lokuTya
Ukongeza kwimimiselo ye-FDA, ilaphu le-PTFE eligqunywe nge-fiberglass kufuneka lisoloko lithobela imigangatho yamazwe ngamazwe, ngakumbi kwiimveliso ezithunyelwa kumazwe angaphandle. I-European Union (EU) inesethi yayo yemimiselo yezinto ezijoliswe ukudibana nokutya, eyaziwa ngokuba yi-Framework Regulation (EC) No 1935/2004.
Ngaphantsi kwesi sikhokelo, i-PTFE ithathwa njengeplastiki kwaye ixhomekeke kumanyathelo athile achazwe kwi-Regulation (EU) No 10/2011 kwizinto zeplastiki kunye namanqaku ahloselwe ukudibana nokutya. Lo mmiselo ubeka uluhlu oluhle lwezinto ezinokuthi zisetyenziswe ekwenzeni iiplastiki zoqhagamshelwano lokutya, kuquka i-PTFE.
Amanye amazwe kunye neengingqi zinemigangatho kunye nemimiselo yazo. Umzekelo, iJapan inoMthetho woGutyulo lokutya waseJapan, ngelixa iTshayina inemigangatho ye-GB yezinto zokunxibelelana nokutya. Abavelisi abajolise kwiimarike zehlabathi kufuneka baqinisekise ukuba iimveliso zabo ze-PTFE coated fiberglass zithobela le migangatho yamazwe ngamazwe.
Izatifikethi eziNxibele kwiShishini kunye neMilinganiselo yoQinisekiso loMgangatho
Ngaphaya kokuthotyelwa kwemithetho, abaninzi abavelisi be-PTFE coated fiberglass bafuna izatifikethi ezongezelelweyo ukubonisa umgangatho kunye nokhuseleko lweemveliso zabo. Ezi ziqinisekiso zihlala zibandakanya uvavanyo olungqongqo kunye neenkqubo zophicotho-zincwadi zokuqinisekisa umgangatho ongaguqukiyo kunye nemigangatho yokhuseleko.
Esinye seziqinisekiso kumgangatho we-ISO 22000, ochaza iimfuno zenkqubo yolawulo lokhuseleko lokutya. Ngelixa lo mgangatho uqhele ukusetyenziswa kubavelisi bokutya, ababoneleli bezinto zokutya ezifana ne-PTFE coated fiberglass banokufuna isiqinisekiso ukubonisa ukuzinikela kwabo kukhuseleko lokutya.
Esinye isatifikethi esifanelekileyo yinkqubo ye-HACCP (Uhlalutyo lweeNgozi kunye naManqaku oLawulo oluPhambili). Nangona isetyenziswa ikakhulu kwishishini lokutya, imigaqo ye-HACCP inokusetyenziswa ekwenzeni izinto zokunxibelelana nokutya ukuqinisekisa ukuba iingozi ezinokubakho ziyachongwa kwaye ziyalawulwa.
Abavelisi abaninzi baphinda baphumeze amanyathelo angqongqo okulawula umgangatho kuyo yonke inkqubo yabo yokuvelisa. Oku kunokubandakanya ukuvavanywa rhoqo kwemathiriyeli ekrwada, ukutshekishwa kwenkqubo, kunye novavanyo lokugqibela lwemveliso ukuqinisekisa ukuba i-PTFE yokwambathisa isetyenziswe ngokufanelekileyo kwaye ihlangabezana nazo zonke iinkcukacha eziyimfuneko zokusetyenziswa kokutya.
IiNgcebiso eziGqwesileyo zokuSebenzisa i-PTFE Coated Fiberglass ekuLungiseni ukutya
Ukuphathwa ngokufanelekileyo kunye noLondolozo lwe-PTFE Coated Fiberglass Products
Ukugcina iipropathi ezikhuselekileyo zokutya ze-PTFE coated fiberglass, ukuphathwa ngokufanelekileyo kunye nokugcinwa kubalulekile. Abasebenzisi kufuneka bakuphephe ukusebenzisa izinto ezibukhali okanye izinto ezirhabaxa ezinokukrwela okanye zonakalise i-PTFE coating. Nokuba imikrwelo emincinci inokubeka esichengeni indawo engabambekiyo kwaye inokudala iindawo apho amasuntswana okutya okanye ibhaktheriya inokuqokelelana.
Ukuhlolwa rhoqo kweemveliso ze-PTFE ezigqunywe nge-fiberglass kuyacetyiswa ukuba ujonge naziphi na iimpawu zokuguga okanye umonakalo. Ukuba kukho ukuwohloka okuqatshelweyo, imveliso kufuneka itshintshwe ukuze kuqinisekiswe ukhuseleko lokutya oluqhubekayo. Kukwabalulekile ukulandela izikhokelo zomenzi zokucoca kunye nokugcinwa, okubandakanya ukusebenzisa izicoci ezincinci kunye nokuphepha izicoci zekhemikhali ezirhabaxa ezinokuthi zithobe isidima sePTFE.
Ugcino olululo ngomnye umba ophambili wokugcina iimveliso ze-fiberglass ezifakwe kwi-PTFE. Kufuneka zigcinwe kwindawo ecocekileyo, eyomileyo kude nelanga elithe ngqo kunye namaqondo obushushu agqithisileyo. Ukupakisha izinto ezinzima phezu kwe-PTFE i-fiberglass sheets okanye amalaphu afakwe kwi-fiberglass kufuneka kuphetshwe ukuthintela umonakalo kwi-coating.
Ukulinganiselwa kobushushu kunye nokuNqanda ukuFuthumala
Ngelixa i-PTFE igqunywe ngelaphu le-fiberglass yaziwa ngokumelana nobushushu obugqwesileyo, kubalulekile ukuthobela imida yobushushu ecetyiswayo. Njengoko kukhankanyiwe ngaphambili, ubushushu obuqhelekileyo bokusebenza be-PTFE egqunywe nge-fiberglass ijikeleze i-500 ° F (260 ° C). Ukugqithisa lo bushushu kunokukhokelela ekuthotyweni kwe-PTFE yokwambathisa, okunokuthi kubeke esichengeni iimpawu zayo ezikhuselekileyo zokutya.
Kwiinkqubo zokulungisa ukutya, kubalulekile ukubeka iliso nokulawula amaqondo ngononophelo. Oku kubaluleke kakhulu kwizicelo zobushushu obuphezulu obufana nokubhaka okanye ukwenziwa kokutya kwimizi-mveliso. Ukuphumeza iinkqubo zokubeka iliso lobushushu kunye nokuseka iinkqubo zokusebenza ezicacileyo kunokunceda ukuthintela ukutshisa ngengozi.
Kukwafanelekile ukuqaphela ukuba ngelixa i-PTFE ngokwayo inganyibiliki kude kube ngamaqondo obushushu aphezulu kakhulu (malunga ne-620 ° F okanye 327 ° C), iimpawu zomatshini ze-fiberglass substrate zinokuqala ukuthotywa kumaqondo obushushu asezantsi. Ngoko ke, ukuhlala ngaphakathi kweqondo lokushisa elicetyiswayo kubalulekile ekugcineni ukusebenza kunye nokhuseleko lwezinto eziphathekayo.
IiProthokholi zokuCoca kunye noGutyulo lweNdawo zoNxibelelwano lokuTya
Ukucocwa ngokufanelekileyo kunye nococeko lwe-PTFE i-fiberglass egqunywe umphezulu ibalulekile kwiindawo zokulungisa ukutya. Iindaba ezimnandi zezokuba indalo engancamatheliyo ye-PTFE yenza le miphezulu ibe lula ukuyicoca. Nangona kunjalo, iiprothokholi ezithile kufuneka zilandelwe ukuqinisekisa ukucocwa ngokucokisekileyo ngaphandle kokonakalisa ukutyabeka.
Ukucocwa kwesiqhelo, amanzi afudumeleyo kunye ne-detergent epholileyo ahlala anele. Kuphephe ukusebenzisa izixhobo zokucoca ezirhabaxa okanye iikhemikhali ezirhabaxa ezinokonakalisa i-PTFE yokwambathisa. Amalaphu athambileyo okanye izipontshi ziyacetyiswa ukuba zicoceke. Emva kokuhlanjwa, umphezulu kufuneka uhlanjwe kakuhle ngamanzi acocekileyo ukususa nasiphi na isicoci esishiyekileyo.
Ukucoca, izicoci zodidi lokutya ezivunyiweyo ukuba zisetyenziswe kwindawo yokudibana nokutya kufuneka zisetyenziswe. Kubalulekile ukulandela imiyalelo yomenzi malunga nokugxila kunye nexesha loqhagamshelwano. Emva kokucoca, umphezulu kufuneka kwakhona uhlanjululwe kakuhle ngamanzi okusela.
Kwezinye iimeko zokulungisa ukutya, ukucocwa komphunga kungasetyenziswa. I-PTFE i-fiberglass egqunywe nge-fiberglass inokumelana ngokubanzi nokucocwa komphunga, kodwa kufuneka kuthatyathwe ukhathalelo ukuba ungagqithi kuthintelo lobushushu besixhobo. Ngalo lonke ixesha ulandela iingcebiso zomenzi wokucoca kunye neendlela zokucoca.
Ukuqukumbela
Ilaphu le-PTFE eligqunywe ngefiberglass lingqina ukuba lisisixhobo esikhuselekileyo nesisebenzayo kwizicelo zoqhagamshelwano lokutya xa lenziwe kwaye lisetyenziswa kakuhle. Ukudityaniswa kwayo okukhethekileyo kokungangeni kweekhemikhali, ukumelana nobushushu, kunye neepropathi ezinganamatheli kukwenza ukuba ibe lolona khetho lubalaseleyo kwiinkqubo ezahlukeneyo zokutya kunye nemisebenzi yokupakisha. Ngokuthobela imigangatho yolawulo, ukulandela iindlela ezifanelekileyo zokuphatha kunye nokugcinwa, kunye nokuphumeza iiprothokholi zokucoca ezifanelekileyo, amashishini anokusebenzisa izibonelelo ze-PTFE coated fiberglass ngelixa eqinisekisa amanqanaba aphezulu okhuseleko lokutya. Njengayo nayiphi na imathiriyeli yokutya, kubalulekile ukufumana iimveliso ze-PTFE ezenziwe nge-fiberglass ezivela kubavelisi abahloniphekileyo ababeka phambili umgangatho kunye nokuthobela imimiselo yokhuseleko lokutya.
Qhagamshelana nathi
Kumgangatho ophezulu we-PTFE egqunywe ngelaphu le-fiberglass edibana nemigangatho ephezulu yokhuseleko kwizicelo zoqhagamshelwano lokutya, qwalasela Aokai PTFE . Iimveliso zethu zenziwe ngokuchaneka kunye nenkathalo, ziqinisekisa ukusebenza kakuhle kunye nokhuseleko kwiindawo zokulungisa ukutya. Ukufunda ngakumbi malunga noluhlu lwethu lweemveliso ze-PTFE ezigqunywe nge-fiberglass kunye nendlela ezinokuzuza ngayo ekusebenzeni kwakho kokulungisa ukutya, qhagamshelana nathi mandy@akptfe.com . Vumela i-Aokai PTFE ibe liqabane lakho ekugcineni ukhuseleko lokutya kunye nokusebenza kakuhle.
Iimbekiselo
I-FDA. (2021). Ikhowudi ye-Federal Regulations Isihloko 21, iSigaba 177 - Izongezo zokutya ezingathanga ngqo: iiPolymers. Ulawulo lokutya kunye neziyobisi lwase-US.
IKhomishini yaseYurophu. (2004). Ummiselo (EC) No 1935/2004 kwizinto eziphathekayo kunye namanqaku ahloselwe ukudibana nokutya. Ijenali esemthethweni yeManyano yaseYurophu.
Dupont. (2020). I-DuPont™ Teflon® Industrial Coatings: Ukuthotyelwa koQhagamshelwano lokuTya. Inkampani yeDuPont de Nemours, Inc.
Warwick, D. (2018). Izixhobo zoQhagamshelwano loKutya-IiRubha, iiSilicone, iiCoatings kunye nee-Inks. Smithers Information Ltd.
ISO. (2018). I-ISO 22000: Iinkqubo ze-2018 zokulawula ukhuseleko lokutya-Iimfuno kuwo nawuphi na umbutho kwikhonkco lokutya. Umbutho waMazwe ngaMazwe woLungiso.
IKhomishini yeCodex Alimentarius. (2003). IKhowudi yokuSebenza eCetyisiweyo yaMazwe ngaMazwe Jikelele yeMithetho-siseko yoCoceko lokutya. Umbutho woKutya kunye nezoLimo weZizwe eziManyeneyo.
