Litaba

Phapang ea Sehloho-UHMW vs HDPE

UHMW le HDPE ke lipolima tsa thermoplastic tse nang le chebahalo e tšoanang. Phapang ea bohlokoa lipakeng tsa UHMW le HDPE ke hore UHMW e na le liketane tse telele tsa polymer tse nang le boima ba limolek'hule tse phahameng haholo athe HDPE e na le karo-karolelano e phahameng ea matla ho isa ho density.

UHMW e emetse Ultra High Molecular Weight polyethylene. E boetse e hlalosoa ke UHMWPE. Lentsoe HDPE le emetse High Density Polyethylene.

UHMW ke eng?

UHMW ke polyethylene e boima ba molek'hule e phahameng haholo. Ke mofuta oa polymer ea thermoplastic. Motsoako ona oa polymer o na le liketane tse telele haholo tse nang le limolek'hule tse boima (tse ka bang limilione tse 5-9). Ka hona, UHMW e na le matla a phahameng ka ho fetisisa a limolek'hule. Leha ho le joalo, ponahalo ea motsoako ona ha e khethollehe ho ea HDPE.

Thepa ea UHMW

Lintho tsa bohlokoa tsa UHMW ke tse latelang.

Ke thepa e thata.

E na le tšusumetso e matla

Ha e na monko ebile ha e latsoehe

Bokgoni bo phahameng ba ho thella

Khanyetso ea leqhoa

Ha e khomarele haholo

Motsoako ona ha o chefo, 'me o bolokehile.

Ha e monye metsi.

Liketane tsohle tsa polymer ho UHMW li telele haholo, 'me li hokahana ka nqa e le 'ngoe. Ketane e 'ngoe le e' ngoe ea polymer e hokahane le liketane tse ling tse potolohileng polymer ka mabotho a Van der Waal. Sena se etsa hore sebopeho sohle se be thata haholo.

UHMW e hlahisoa ho tsoa ho polymerization ea monoma, ethylene. Polymerization ea ethylene e theha sehlahisoa sa motheo sa polyethylene. Sebopeho sa UHMW se fapane haholo le sa HDPE ka lebaka la mokhoa oa tlhahiso. UHMW e hlahisoa boteng ba metallocene catalyst (HDPE e hlahisoa ka pel'a Ziegler-Natta catalyst).

Lisebelisoa tsa UHMW

Tlhahiso ea mabili a linaleli

Likokoana-hloko

Lirolara

Li-gears

Lipoleiti tse thellang

HDPE ke eng?

HDPE ke polyethylene ea boleng bo phahameng. Ke thepa ea thermoplastic polymer. Boitsebiso bona bo na le sekhahla se phahameng ha se bapisoa le mefuta e meng ea polyethylene. Boima ba HDPE bo fanoa e le 0.95 g/cm3. Kaha tekanyo ea lekala la polymer chain ho thepa ena e tlase haholo, liketane tsa polymer li pakiloe ka thata. Sena se etsa hore HDPE e be thata ebile e fana ka khanyetso e matla. HDPE e ka sebetsanoa tlas'a mocheso o ka bang 120°C ntle le phello efe kapa efe e kotsi. Sena se etsa hore HDPE e khonehe.

Thepa ea HDPE

Lintho tsa bohlokoa tsa HDPE li kenyelletsa,

Ka thata

E hanyetsana le tšusumetso e phahameng

Autoclavable

Ponahalo e sa bonahaleng kapa e phatsimang

Karolelano e phahameng ea matla-to-density

Boima bo bobebe

Ha ho na kapa ho monya metsi

Ho hanyetsa lik'hemik'hale

HDPE ke e 'ngoe ea thepa ea polasetiki eo ho leng bonolo ho e sebelisa hape. Mehaho ena e khetholla ts'ebeliso ea HDPE.

Lisebelisoa tsa HDPE

Lisebelisoa tse ling tsa bohlokoa li kenyelletsa tse latelang.

E sebelisoa e le lijana tsa metsoako e mengata ea metsi e kang lebese le ho boloka lik'hemik'hale tse kang joala.

Ho hlahisa mekotla ea ho reka ka polasetiki

Literene

Lisebelisoa tsa lipeipi

HDPE e boetse e sebelisetsoa ho seha mapolanka

Ho Tšoana Hofe Pakeng tsa UHMW le HDPE?

UHMW le HDPE li entsoe ka ethylene monomers.

Ka bobeli ke li-polymer tsa thermoplastic.

Ka bobeli li na le ponahalo e ke keng ea khetholloa.

Kakaretso-UHMW vs HDPE

Ka bobeli UHMW le HDPE li entsoe ka ethylene monomers ka polymerization. Phapang ea bohlokoa lipakeng tsa UHMW le HDPE ke hore UHMW e na le liketane tse telele tsa polymer tse nang le boima ba limolek'hule tse phahameng haholo athe HDPE e na le karo-karolelano e phahameng ea matla ho isa ho density.