Phapano ke efe lipakeng tsa PVC ea bongaka le PVDC??

Lehae

Phapano ke efe lipakeng tsa PVC ea bongaka le PVDC??

PVC ea meriana (Polyvinyl chloride) le PVDC (Polyvinylidene Chride) ka bobeli ke lisebelisoa tse sebelisoang hangata indastering ea meriana bakeng sa ho paka. Le hoja li na le lintho tse ling tse tšoanang, ho na le phapang e khōlō pakeng tsa tsena tse peli:

Sebopeho:

PVC ea meriana: Ke polymer ea thermoplastic e entsoeng haholo-holo ka vinyl chloride monomers. Li-additives tse ling li kenyelelitsoe ho ntlafatsa thepa ea eona joalo ka ho feto-fetoha ha maemo, khanyetso ea tšusumetso, le botsitso.
PVDC: Ke polymer ea thermoplastic e entsoeng haholo-holo ka vinylidene chloride monomers.. PVDC ke copolymer ea vinylidene chloride le monomers tse ling, hangata e na le karolo e nyane ea vinyl chloride.
Thepa ea barrier:

PVC ea meriana: PVC e fana ka thepa e itekanetseng ea thibelo khahlanong le mongobo, oksijene, le likhase tse ling. E fana ka tšireletso e lekaneng bakeng sa lihlahisoa tse ngata tsa meriana empa e ka 'na ea se ke ea sebetsa hantle bakeng sa metsoako e bonolo haholo kapa e thibelang mongobo..
PVDC: PVDC e tsejoa ka thepa ea eona e ntle ea litšitiso. E fana ka thibelo e ikhethang khahlanong le mongobo, oksijene, kganya, le likhase tse ling. Lifilimi kapa li-laminate tse koahetsoeng ka PVDC li fana ka tšireletso e phahameng ho netefatsa botsitso le bophelo bo bolelele ba lihlahisoa tsa meriana..
Pepenene:

PVC ea meriana: PVC hangata e pepenene, ho dumella tlhahlobo ya pono ya dikahare ka hara sephuthelo.
PVDC: Lifilimi kapa lirafshoa tsa PVDC li pepenene haholo, ho fana ka ho hlaka le ponahalo e babatsehang ea sehlahisoa se pakiloeng.
Ho hanyetsa ka lik'hemik'hale:

PVC ea meriana: PVC e hanyetsana le lik'hemik'hale tse ngata tse tloaelehileng 'me e na le khanyetso e ntle ea oli, mafura, le lino tse tahang. Leha ho le joalo, e ka 'na ea se ke ea lumellana le metsoako e itseng kapa lik'hemik'hale tse mabifi.
PVDC: PVDC e bonts'a khanyetso e phahameng ea lik'hemik'hale 'me e lumellana le mefuta e mengata e pharaletseng ea lihlapolli le lik'hemik'hale ha li bapisoa le PVC..
Ho tsitsa ho hoama ha futhumatsang:

PVC ea meriana: PVC e na le botsitso bo botle ba mocheso 'me e khona ho mamella mocheso o pharaletseng nakong ea ho sebetsa le ho boloka.
PVDC: PVDC e na le botsitso bo botle ba mocheso, ho e lumella ho boloka thepa ea eona ea thibelo esita le tlas'a maemo a phahameng a mocheso.
Mehopolo ea Taolo:

PVC ea meriana: PVC e amoheloa ka bophara le ho amoheloa bakeng sa likopo tsa ho paka tsa meriana. Leha ho le joalo, dingongoreho di hlahisitswe mabapi le kgonahalo ya ho tjheswa ha di-plasticizers (mohlala, DEHP) ho tloha PVC, haholo-holo lits'ebetsong tse itseng tsa bongaka.
PVDC: PVDC ka kakaretso e nkuwa e le sesebediswa se bolokehileng le se sebetsang se thibelang diphuthelwana tsa meriana. Hangata e sebelisoa lits'ebetsong moo thepa e ntlafalitsoeng ea lithibelo e hlokahalang.
Ke habohlokoa ho hlokomela hore thepa e khethehileng le metsoako ea meriana ea PVC le PVDC e ka fapana ho itšetlehile ka moetsi le kopo e reriloeng.. Litaelo le litlhoko tsa tsamaiso li ka boela tsa laela khetho ea thepa bakeng sa ho paka ka meriana.

Leqephe le Fetileng:
Leqephe le Latelang:

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