Mohala o Moholo oa ho Ntša Phaephe ea HDPE

Phaephe ea HDPE ke mofuta oa phaephe ea polasetiki e tenyetsehang e sebelisetsoang ho fetisetsa metsi le khase 'me hangata e sebelisoa ho nkela liphaephe tsa konkreite tse tsofetseng kapa tsa tšepe sebaka. E entsoe ka HDPE ea thermoplastic (polyethylene e nang le density e phahameng), boemo ba eona bo phahameng ba ho se kenelle metsi le tlamo e matla ea limolek'hule li etsa hore e lokele liphaephe tsa khatello e phahameng. Phaephe ea HDPE e sebelisoa lefatšeng ka bophara bakeng sa lits'ebetso tse kang liphaephe tsa metsi, liphaephe tsa khase, liphaephe tsa likhoerekhoere, liphaephe tsa phetisetso ea lerōle, nosetso ea mahaeng, liphaephe tsa phepelo ea sistimi ea mollo, liphaephe tsa motlakase le tsa puisano, le liphaephe tsa metsi a sefefo le tsa drainage.

Liphaephe tse kholo tsa HDPE tse bophara bo boholo li tiile, li bobebe, lia tšoha ebile li hanela lik'hemik'hale. Li fana ka theko e tlase ea ho kenya le bophelo bo bolelele ba ts'ebeletso. Liphaephe tsena li fumaneha ka bolelele bo tloaelehileng ba 3, 6, 12 le 14m. Bolelele ba liphaephe tse khethehileng bo ka hlahisoa ho fihlela tlhoko efe kapa efe.

Phaephe ea HDPE ke phaephe ea polasetiki e tenyetsehang e entsoeng ka polyethylene e nang le tekanyo e phahameng ea thermoplastic e sebelisoang haholo bakeng sa phetiso ea mokelikeli le khase mochesong o tlase. Mehleng ea morao tjena, liphaephe tsa HDPE li fumane ts'ebeliso ea tsona e kholo bakeng sa ho jara metsi a nooang, litšila tse kotsi, likhase tse fapaneng, lerōle, metsi a mollo, metsi a pula, jj. Tlamo e matla ea limolek'hule ea thepa ea phaephe ea HDPE e e thusa ho e sebelisa bakeng sa liphaephe tse nang le khatello e phahameng. Liphaephe tsa polyethylene li na le nalane e telele le e ikhethang ea ts'ebeletso bakeng sa khase, oli, merafo, metsi le liindasteri tse ling. Ka lebaka la boima ba eona bo tlase le ho hanyetsa ho hoholo ha mafome, indasteri ea liphaephe tsa HDPE e ntse e hola haholo. Ka selemo sa 1953, Karl Ziegler le Erhard Holzkamp ba ile ba sibolla polyethene e nang le tekanyo e phahameng (HDPE). Liphaephe tsa HDPE li ka sebetsa ka mokhoa o khotsofatsang mochesong o moholo oa -2200 F ho isa ho +1800 F. Leha ho le joalo, tšebeliso ea Liphaephe tsa HDPE ha e khothalletsoe ha mocheso oa mokelikeli o feta 1220 F (500 C).

Liphaephe tsa HDPE li etsoa ka ho etsa polymerization ea ethylene, e leng sehlahisoa se setseng sa oli. Li-additives tse fapaneng (li-stabilizer, li-filler, li-plasticizer, li-softeners, li-lubricant, li-colorant, li-lake retardants, li-blowing agents, li-crosslinking agents, li-additives tse senyehang ke ultraviolet, jj.) lia eketsoa ho hlahisa phaephe ea ho qetela ea HDPE le likarolo. Bolelele ba phaephe ea HDPE bo etsoa ka ho futhumatsa resin ea HDPE. Ebe e ntšoa ka die, e khethollang bophara ba phaephe. ​​Botenya ba lebota la phaephe bo khethoa ke motsoako oa boholo ba die, lebelo la sekurufu, le lebelo la terekere e hulang. Hangata, 3-5% carbon black e eketsoa ho HDPE ho e etsa hore e hanele UV, e leng se fetolang liphaephe tsa HDPE hore e be ntšo ka 'mala. Mefuta e meng ea mebala e fumaneha empa hangata ha e sebelisoe khafetsa. Phaephe ea HDPE e mebala kapa e metsero hangata ke thepa e ntšo ea 90-95%, moo mola o mebala o fanoang holim'a 5% ea bokaholimo ba kantle.