I tata nei, ka patai tetahi kaihoko mo te utu o te taura PP danline.Ko te kaihoko he kaihanga e kawe kupenga ika.I te nuinga o te wa, ka whakamahia e ratou te taura polyethylene.Engari he maeneene ake te taura polyethylene me te pai me te ngawari ki te wewete i muri i te whiri.Ko te painga o te taura PP danline ko tona hanganga muka.He ahua taratara te muka, a, kaore i te pahekeheke.
Ko te tikanga, ko te tauira ngota o te propylene ko: CH3CH2CH3, me te tauira ngota o te ethylene ko: CH3CH3.
Ko te hanganga o te polypropylene e whai ake nei:
— (CH2-CH (CH3) -CH2-CH (CH3) -CH2-CH (CH3)) n —-
Ko te hanganga o te polyethylene e whai ake nei:
— (CH2-CH2-CH2-CH2) n —-
Ka kitea mai i te hanganga ko te polypropylene he mekameka peka ake i te polyethylene.I muri i te hanga o te taura, na te mahi a te mekameka peka, he kaha ake te kaha o te taura polypropylene i te polyethylene me te kore e pahekeheke.
He ngawari ake, he maeneene hoki te taura polyethylene i te polypropylene, he ngawari ake te ahua.
Ko te kiato o te polypropylene he 0.91, ko te kiato o te polyethylene he 0.93.Na Ko te taura PE he taumaha ake i te taura PP.
Wā tuku: Hune-03-2019