Iyini i-Modified Polyethylene?

Iyini i-Modified Polyethylene?

Izinhlobo eziguquliwe ze-polyethylene ikakhulukazi zifaka i-polyethylene e-chlorine, i-chlorosulfonated polyethylene, i-polyethylene exhumene ne-cross-linked nezinhlobonhlobo eziguquliwe.

I-Chlorinated Polyethylene:

I-chloride engahleliwe etholwe ngokufaka ingxenye yama-athomu e-hydrogen ku-polyethylene nge-chlorine. I-Chlorination yenziwa ngaphansi kokuqalwa kokukhanya noma i-peroxide, futhi ikhiqizwa ikakhulukazi indlela yokumisa amanzi embonini. Ngenxa yomehluko esisindweni samangqamuzana nokusatshalaliswa, i-branching degree, i-chlorination degree ngemva kokucwenga, ukusatshalaliswa kwe-athomu ye-chlorine kanye ne-crystallinity eyinsalela ye-polyethylene eluhlaza, i-polyethylene e-chlorinated kusuka ku-rubbery kuya kupulasitiki oqinile ingatholakala. Ukusetshenziswa okuyinhloko kufana ne-modifier ye-polyvinyl chloride ukuthuthukisa ukumelana nomthelela we-polyvinyl chloride. I-Chlorinated polyethylene ngokwayo ingasetshenziswa njengezinto zokuvikela ugesi kanye nempahla yomhlabathi.

I-Chlorosulfonated polyethylene:

Lapho i-polyethylene ihlangana ne-chlorine equkethe i-sulfur dioxide, ingxenye yama-athomu e-hydrogen ku-molecule ithathelwa indawo i-chlorine kanye nenani elincane lamaqembu e-sulfonyl chloride ukuze kutholwe i-chlorosulfonated polyethylene. Indlela eyinhloko yezimboni yindlela yokumiswa. I-Chlorosulfonated polyethylene imelana ne-ozone, ukugqwala kwamakhemikhali, uwoyela, ukushisa, ukukhanya, imihuzuko namandla aqinile. Kuyi-elastomer enezici ezinhle ezibanzi futhi ingasetshenziswa ukwenza izingxenye zemishini ezithinta ukudla.

I-XLPE:

Ukusebenzisa indlela yokukhishwa kwemisebe (i-X-ray, i-electron beam noma i-ultraviolet irradiation, njll.) noma indlela yamakhemikhali (i-peroxide noma i-silicone cross-linking) ukwenza i-polyethylene ewumugqa ibe yinethiwekhi noma i-polyethylene eyinqwaba exhumene. Phakathi kwazo, indlela yokuxhumanisa i-silicone inenqubo elula, izindleko eziphansi zokusebenza, futhi ukubunjwa nokuxhumanisa kungenziwa ngezinyathelo, ngakho-ke ukubunjwa kokushaywa nokubunjwa komjovo kufanelekile. Ukumelana nokushisa, ukumelana nokuqhekeka kokucindezeleka kwemvelo kanye nezakhiwo zemishini ye-polyethylene exhunywe ngokuphambana ngcono kakhulu uma kuqhathaniswa ne-polyethylene, futhi ifanele amapayipi amakhulu, izintambo nezintambo, kanye nemikhiqizo ye-rotomolding.

Ukulungiswa kokuhlanganiswa kwe-polyethylene:

Ngemuva kokuhlanganisa i-polyethylene ene-linear low density kanye ne-polyethylene ephansi, ingasetshenziswa ukucubungula amafilimu neminye imikhiqizo, futhi ukusebenza komkhiqizo kungcono kune-polyethylene ephansi. Irabha ye-polyethylene ne-ethylene propylene ingahlanganiswa ukuze kukhiqizwe izinhlobonhlobo eziningi zerabha. i-thermoplastic ama-elastomers