Lisebelisoa tsa Thermoplastic ka Mefuta e sa tšoaneng
Selelekela
Lisebelisoa tsa thermoplastic ke mofuta oa polymer e ka qhibilihang le ho bōptjoa hape ka makhetlo a mangata ntle le ho ba le phetoho ea bohlokoa ea lik'hemik'hale. Li sebelisoa haholo liindastering tse fapaneng ka lebaka la thepa ea tsona e ikhethang le mefuta-futa.
E 'ngoe ea melemo ea bohlokoa ka ho fetisisa ea thepa ea thermoplastic ke bokhoni ba eona ba ho bōptjoa ka libopeho tse rarahaneng habonolo. Sena se etsa hore e be tse loketseng ho sebelisoa lits'ebetsong tsa tlhahiso moo ho hlokahalang meralo e rarahaneng. Ho feta moo, li-thermoplastics li bobebe ebile li na le khanyetso e ntle ho ts'usumetso, li etsa hore li tšoanelehe ho sebelisoa lits'ebetsong moo ho tšoarellang ho hlokahalang.
Molemo o mong oa thepa ea thermoplastic ke bokhoni ba bona ba ho sebelisoa hape. Ho fapana le lisebelisoa tsa thermosetting, tse fetohang lik'hemik'hale nakong ea ts'ebetso ea ho folisa, thermoplastics e ka qhibilihisoa le ho bōptjoa hangata ntle le ho lahleheloa ke thepa ea eona. Sena se ba etsa khetho e ntle ea tikoloho bakeng sa bahlahisi ba batlang ho fokotsa khabone ea bona.
Ho na le mefuta e mengata e fapaneng ea thepa ea thermoplastic, e 'ngoe le e' ngoe e na le thepa le litšobotsi tsa eona tse ikhethang. Karabong ena, re tla tšohla tse ling tsa mefuta e atileng haholo ea thermoplastic le thepa ea bona.
1. Polyethylene (PE):
Polyethylene ke polasetiki e bobebe, e tšoarellang, e tenyetsehang e sebelisoang hangata ho paka, ho aha le ho kenya likoloi. E fumaneha ka limaraka tse 'maloa tse fapaneng, ho kenyelletsa polyethylene e phahameng haholo (HDPE) le polyethylene e tlase haholo (LDPE). HDPE ke polasetiki e matla le e thata e hanyetsanang le lik'hemik'hale le mongobo, ha LDPE e tenyetseha haholoanyane 'me e na le matla a ho hanyetsa.
2. Polypropylene (PP):
Polypropylene ke polasetiki e thata, e tiileng e hanelang mocheso, lik'hemik'hale le mongobo. E sebelisoa hangata liphuthelong, likarolong tsa likoloi le lisebelisoa tsa ntlo. E fumaneha ka mefuta e fapaneng, ho kenyeletsoa homopolymer, copolymer, le random copolymer. Homopolymer ke sehlopha se tloaelehileng haholo 'me se na le ho tiea ho hoholo le ho hanyetsa mocheso, ha copolymer e na le ho hanyetsa tšusumetso e betere 'me copolymer ea random e na le ho hlaka ho betere.
3. Polystyrene (PS):
Polystyrene ke polasetiki e bobebe e thata, e thata e sebelisoang hangata ho paka, ho kenya letsoho le lisebelisoa tsa tafole tse lahloang. E fumaneha ka limaraka tse 'maloa tse fapaneng, ho kenyeletsoa polystyrene ea sepheo se akaretsang (GPPS) le polystyrene e nang le tšusumetso e phahameng (HIPS). GPPS ke polasetiki e hlakileng le e brittle e sebelisoang lits'ebetsong moo ho pepesehang ho leng bohlokoa, ha HIPS e le polasetiki e hanyetsanang le tšusumetso e sebelisoang lits'ebetsong moo ho thata ho leng bohlokoa.
4. Polyvinyl chloride (PVC):
Polyvinyl chloride ke polasetiki e feto-fetohang e sebelisoang lits'ebetsong tse fapaneng, ho kenyeletsoa kaho, likarolo tsa likoloi le lisebelisoa tsa bongaka. E fumaneha ka limaraka tse 'maloa tse fapaneng, ho kenyeletsoa le e thata PVC le ho tenyetseha PVC. E thata PVC ke polasetiki e matla le e tšoarellang e sebelisoang lits'ebetsong moo ho satalla ho leng bohlokoa, ha ho ntse ho tenyetseha PVC ke polasetiki e bonolo le e bonolo haholoanyane e sebelisoang lits'ebetsong moo ho fetoha ha maemo ho leng bohlokoa.
5. Acrylonitrile-butadiene-styrene (ABS):
ABS ke polasetiki e thata, e thata e sebelisoang hangata likarolong tsa likoloi, lintho tsa ho bapala le matlo a elektroniki. Ke motsoako oa lipolymer tse tharo tse fapaneng: acrylonitrile, butadiene, le styrene. ABS e na le matla a ho hanyetsa mocheso, ho hanyetsa mocheso, le khanyetso ea lik'hemik'hale.
6. Polycarbonate (PC):
Polycarbonate ke polasetiki e matla, e bonaletsang e sebelisoang hangata ho likarolo tsa elektroniki, likarolo tsa likoloi le lisebelisoa tsa bongaka. E na le ts'ebetso e ntle haholo ea ho hanyetsa, ho hanyetsa mocheso, le ho hlaka ha optical. E boetse e hanyetsana le mahlaseli a kotsi a UV le lik'hemik'hale.
7. Nylon (PA):
Nylon ke polasetiki e matla, e bobebe e sebelisoang hangata likarolong tsa likoloi, thepa ea lipapali le likarolo tsa motlakase. E fumaneha ka limaraka tse 'maloa tse fapaneng, ho kenyeletsoa nylon 6 le nylon 66. Nylon 6 ke polasetiki e tenyetsehang haholoanyane e sebelisoang lits'ebetsong moo ho thata le ho tenyetseha ho leng bohlokoa, ha nylon 66 e le polasetiki e thata haholoanyane e sebelisoang lits'ebetsong moo ho thata le ho tenyetseha. matla a bohlokoa.
8. Acetal (POM):
Acetal ke polasetiki e matla, e thata e sebelisoang hangata ho likere, li-bearings le likarolo tse ling tsa mochini. E na le botsitso bo botle ba sebopeho, khohlano e tlase, le khanyetso e ntle ea ho apara. E fumaneha ka limaraka tse 'maloa tse fapaneng, ho kenyelletsa homopolymer le copolymer. Homopolymer e na le thepa e ntle ea mochini, ha copolymer e na le khanyetso e ntle ea lik'hemik'hale.
9. Thermoplastic elastomers (TPE):
TPEs ke lisebelisoa tse tenyetsehang, tse kang rabara tse sebelisoang hangata likarolong tsa likoloi, lieta le lihlahisoa tsa bareki. Ke motsoako oa lipolymer tse peli tse fapaneng: thermoplastic le elastomer. TPELi-s na le maemo a bonolo a ho feto-fetoha ha maemo, khatello e tlase ea khatello, le khanyetso e ntle ea lik'hemik'hale.
Ntle le thepa ea bona e ikhethang, thepa ea thermoplastic le eona e bonolo ho e sebetsa 'me e ka bōptjoa ho sebelisoa mekhoa e fapaneng, ho kenyelletsa le ho bopa ente, ho bopa ha blow, le extrusion. Sena se ba etsa khetho e nepahetseng bakeng sa bahlahisi ba hlokang ho hlahisa likarolo tse ngata kapele le ka nepo.
Ho sa tsotellehe melemo ea bona e mengata, ho boetse ho na le mefokolo ea ho sebelisa thepa ea thermoplastic. Ka mohlala, ba na le mocheso o fokolang oa mocheso ho feta lisebelisoa tsa thermosetting, tse ka fokotsang tšebeliso ea tsona ka likopo tse phahameng tsa mocheso. Ho phaella moo, tse ling tsa thermoplastics li ka ba brittle le tse atisang ho robeha tlas'a khatello ea kelello.
Qetellong, lisebelisoa tsa thermoplastic ke mofuta o sebelisoang haholo oa polymer o fanang ka melemo e mengata ho feta lisebelisoa tse ling. Li bobebe, li tšoarella, 'me ho bonolo ho li sebetsa, e leng se etsang hore e be khetho e nepahetseng bakeng sa mefuta e mengata ea lisebelisoa. Ka bokhoni ba bona ba ho sebelisoa hape, hape ke khetho e ntle ea tikoloho bakeng sa bahlahisi ba batlang ho fokotsa khabone ea bona.
