Ngaba kungcono ukusebenzisa i-5 yeplastiki okanye i-7 yeplastiki kwiikomityi zamanzi zeplastiki?

Namhlanje ndibone umyalezo ovela kumhlobo.Umbhalo wokuqala wabuza: Ngaba kungcono ukusebenzisa i-5 yeplastiki okanye i-7 yeplastiki kwiikomityi zamanzi?Ngokumalunga nalo mbandela, ndichaze ngokucacileyo ukuba amanani kunye neesimboli ezisezantsi kwendebe yamanzi eplastiki zithetha ntoni kumanqaku amaninzi adlulileyo.Namhlanje ndiza kubelana nawe malunga namanani 5 kunye no-7. Asiyi kungena kwiinkcukacha malunga namanye amanani.Kwangaxeshanye, Abahlobo abanokubuza imibuzo malunga ne-5 kunye ne-7 nabo banobuchule kakhulu.

Inani le-5 phantsi kwekomityi yamanzi yeplastiki lithetha ukuba umzimba wendebe yamanzi wenziwe ngezinto zePP.Izinto zePP zisetyenziswa ngokubanzi kwimveliso yeekomityi zamanzi zeplastiki.Ngenxa yokumelana nobushushu obuphezulu bezinto zePP, iimveliso ezininzi ezigqityiweyo ezigqityiweyo ezinokufudunyezwa kwi-oven microwave kwiintsuku zokuqala Ibhokisi yeplastiki ecacileyo yebhokisi yenziwe ngezinto zePP.Izinto zePP zinentsebenzo ezinzileyo kwaye ibakala lokutya elivunyiweyo ngamazwe ahlukeneyo kunye nemimandla emhlabeni jikelele.Ngoko ke, kwimveliso yeekomityi zamanzi, izinto zePP azisetyenziselwanga kuphela umzimba wendebe.Ukuba abahlobo banikel’ ingqalelo, baya kufumanisa ukuba enoba ziikomityi zamanzi zeplastiki, iikomityi zamanzi zeglasi, okanye iikomityi zamanzi zentsimbi engenastainless.I-90% yezivalo zekomityi zeplastiki nazo zenziwe ngezinto zePP.Izinto zePP zithambile kwaye zinokumelana nobushushu obulungileyo.Nokuba ikhutshwe kwi-minus 20 ℃ kwaye ngoko nangoko yongezwa kwi-96 ℃ yamanzi ashushu, izinto aziyi kuqhekeka.Nangona kunjalo, ukuba yinto ye-AS, iya kuqhekeka kakhulu kwaye iya kuqhuma ngokuthe ngqo.vula.Ngenxa yokuba izinto zePP zithambile, iikomityi zamanzi zenziwe ngePP, nokuba ngumzimba wekomityi okanye isiciko, zivame ukukhuhla ngexesha lokusetyenziswa.

Inombolo yesi-7 ephantsi kwekomityi yamanzi yeplastiki inzima kakhulu, kuba ukongeza kwizinto eziphathekayo, inani le-7 linenye intsingiselo, emele ezinye izinto zeplastiki ezikhuselekileyo kwibakala lokutya.Okwangoku, iikomityi zamanzi zeplastiki eziphawulwe ngenombolo yesi-7 kwimarike zihlala zimele ezi zinto zimbini, enye yiPC kwaye enye yiTritan.Ngoko ukuba izinto ezimbini zifaniswa nePP, eyona nombolo ye-5, kunokuthiwa i-gap inkulu kakhulu.

I-PC yodidi lokutya iphinda isetyenziswe kakhulu kwiikomityi zamanzi zeplastiki nakwizixhobo zendlu zeplastiki, kodwa imathiriyeli ye-PC ine-bisphenol A, eya kukhutshwa xa ubushushu boqhagamshelwano bungaphezu kwama-75°C.Ke kutheni isasetyenziswa njengemathiriyeli yekomityi yamanzi?Abavelisi abavame ukusebenzisa izinto ze-PC ukuvelisa iikomityi zamanzi zeplastiki baya kuba namazwi acacileyo xa bethengisa, ebonisa ukuba iikomityi zamanzi ezinjalo zinokubamba kuphela amanzi obushushu begumbi kunye namanzi abandayo, kwaye abanako ukongeza amanzi atshisayo kunye nokushisa kwamanzi angaphezu kwama-75 ° C.Kwangaxeshanye, ngenxa yobuninzi obuphezulu bezinto zePC, ikomityi yamanzi eveliswayo inembonakalo ecacileyo nentle.