Yintoni iPolyethylene eGuquliweyo?

Yintoni iPolyethylene eGuquliweyo?

Iindidi ezilungisiweyo ze-polyethylene ikakhulu ziquka i-polyethylene e-chlorine, i-chlorosulfonated polyethylene, i-polyethylene edibeneyo kunye neentlobo eziguquliweyo ezixutywe.

I-Chlorinated Polyethylene:

Ikloridi engacwangciswanga efunyenwe ngokutshintsha ngokuyinxenye iiathom zehydrogen kwi-polyethylene ngeklorini. I-Chlorination iqhutyelwa phantsi kokuqaliswa kokukhanya okanye i-peroxide, kwaye iveliswa ngokuyinhloko yindlela yokumiswa kwamanzi kumashishini. Ngenxa yomahluko kubunzima bemolekyuli kunye nokusabalalisa, i-branching degree, i-chlorination degree emva kwe-chlorination, ukuhanjiswa kwe-athomu yeklorini kunye ne-crystallinity eseleyo ye-polyethylene eluhlaza, i-polyethylene ene-chlorine ukusuka kwi-rubbery ukuya kwiplastiki eqinile inokufumaneka. Ukusetyenziswa okuphambili kunjenge-modifier ye-polyvinyl chloride ukuphucula ukuchasana kwempembelelo ye-polyvinyl chloride. I-Chlorinated polyethylene ngokwayo ingasetyenziselwa njengento yokugquma umbane kunye nezinto zomhlaba.

I-Chlorosulfonated polyethylene:

Xa i-polyethylene isabela nge-chlorine equkethe i-sulfur dioxide, inxalenye ye-athomu ye-hydrogen kwi-molecule ithathwa yi-chlorine kunye nenani elincinci lamaqela e-sulfonyl chloride ukufumana i-chlorosulfonated polyethylene. Eyona ndlela yoshishino yindlela yokunqunyanyiswa. I-Chlorosulfonated polyethylene iyamelana ne-ozone, ukubola kweekhemikhali, i-oyile, ubushushu, ukukhanya, i-abrasion kunye namandla okuqina. Yi-elastomer eneempawu ezilungileyo ezibanzi kwaye ingasetyenziselwa ukwenza izixhobo zezixhobo ezinxibelelana nokutya.

XLPE:

Ukusebenzisa indlela yemitha (i-X-reyi, i-electron beam okanye i-ultraviolet irradiation, njl.) okanye indlela yekhemikhali (i-peroxide okanye i-silicone cross-linking) ukwenza i-polyethylene emgca kwinethiwekhi okanye i-polyethylene eninzi edibeneyo. Phakathi kwabo, indlela yokudibanisa i-silicone ye-cross-linking inenkqubo elula, iindleko zokusebenza eziphantsi, kunye nokubunjwa kunye nokudibanisa okunqamlezileyo kunokwenziwa ngamanyathelo, ngoko ukubunjwa kwe-blow kunye ne-injection molding ifanelekile. Ukumelana nobushushu, ukunyanzeliswa koxinzelelo lokusingqongileyo kunye neempawu zomatshini ze-polyethylene edibeneyo ziphuculwe kakhulu xa kuthelekiswa ne-polyethylene, kwaye ifanelekile kwimibhobho emikhulu, iintambo kunye neengcingo, kunye neemveliso ze-rotomolding.

Ukudibanisa ukuguqulwa kwe-polyethylene:

Emva kokudibanisa i-linear low density polyethylene kunye ne-low density polyethylene, ingasetyenziselwa ukucubungula iifilimu kunye nezinye iimveliso, kwaye ukusebenza kwemveliso kungcono kune-polyethylene ephantsi. Irabha ye-polyethylene kunye ne-ethylene propylene inokudityaniswa ukuvelisa uluhlu olubanzi lwerabha. Thermoplastic iielastomers