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Polasetiki e tsamaisang mocheso ke thepa ea resin kapa thepa e kopantsoeng ea resin e nang le conductivity e phahameng ea mocheso. Libakeng tse ling tsa mosebetsi moo thepa e ka bang le mafome, e tsamaisa mocheso ka lebaka la mocheso mohala oa extrusion oa polasetiki e na le nako ea ho sebetsa e ke keng ea bapisoa le thepa ea tšepe. Leha ho le joalo, ho khanna ha mocheso ha thepa ea resin ka boeona ha hoa lokela, 'me ho hlokahala hore ho eketsoe li-filler tse nang le ho khanna ha mocheso ho ntlafatsa ho khanna ha mocheso ha thepa.
Qetellong ea lekholo la bo20 la lilemo, litsebi tsa linaha tse ling li ne li atisa ho eketsa phofo ea tšepe ho resin ho ntlafatsa motlakase oa thepa.
1. Nitride
Hangata nitride e na le melemo ea ho tsamaisa mocheso o phahameng, ho hanyetsa mocheso o phahameng, le litšobotsi tse ntle tsa ho kenya motlakase. E ka eketsa ho tsamaisa mocheso oa polasetiki ntle le ho fokotsa litšobotsi tsa ho kenya motlakase oa thepa. Leha ho le joalo, bothata ba eona ke hore theko e phahame haholo, e leng se fokotsang ts'ebeliso ea eona e pharaletseng lipolasing. Li-nitride tse sebelisoang e le li-filler tse tsamaisang mocheso li kenyelletsa haholo-holo boron nitride (BN), silicon nitride (Si3N4) le aluminium nitride (AlN), jj. Ho tsamaisa mocheso oa tsona ho ka fihla ho 200~300 W/(m·K).
2. Carbide
Carbide ea silicon e ka aroloa ka sistimi ea kristale ea hexagonal (α-SiC) le sistimi ea kristale ea cubic (β-SiC). Ho tsamaisa ha eona mocheso ke 80 ~ 120 W/(m·K). Ke sesebelisoa se setle sa ho tlatsa mocheso. Carbide ea silicon e boetse e na le melemo ea ho hanyetsa mocheso o phahameng, modulus e phahameng le ho hanyetsa hantle oxidation, 'me e sebelisoa thepa ea ho paka ea microelectronic. Carbide ea Boron (B4C) le eona ke thepa e hanelang mocheso o phahameng e nang le bothata bo phahameng haholo le ho tsamaisa mocheso. Leha ho le joalo, theko ea eona e phahameng e lebisitse tšebelisong e fokolang ea eona polasetiking e tsamaisang mocheso.
3. Okside
Li-filler tsa oxide li kenyelletsa haholo-holo aluminium oxide (Al2O3), zinc oxide (ZnO), le magnesium oxide (MgO). Le hoja conductivity ea tsona ea mocheso e se holimo joaloka ea nitrides le carbides, hangata e pakeng tsa 30 le 50 W/(m·K), empa hape e phahame haholo ho feta matrix ea polymer, 'me e na le thepa e ntle ea ho thibela motlakase. Haholo-holo, e na le mehloli e mengata, theko e tlase, le tlholisano ea 'maraka. Ke conductor e sebelisoang hangata bakeng sa ho lokisa li-insulation le polasetiki e tsamaisang mocheso.
4. Phofo ea tšepe
Ka kakaretso, phofo ea tšepe e na le conductivity e phahameng haholo ea mocheso, ho fihlela ho 100-400 W/(m·K), 'me ke li-filler tse ntle tsa conductive tsa mocheso. Leha ho le joalo, kaha mokhoa oa phetisetso ea mocheso oa li-filler tse thehiloeng tšepeng ke conductivity ea mocheso ea elektroniki le thepa e fokolang ea ho thibela motlakase, ts'ebeliso ea tsona indastering ea elektroniki e nang le litlhoko tse thata tsa ho thibela motlakase e lekanyelitsoe.
5. Thepa e ncha ea khabone
Lisebelisoa tse ncha tsa khabone tse kang graphite, li-nanotube tsa khabone, le daemane le tsona li na le conductivity e phahameng haholo ea mocheso. Conductivity ea mocheso ea li-nanotube tsa khabone le daemane e ka fihla ho feta 1000 W/(m·K). Leha ho le joalo, ka lebaka la litšenyehelo tsa eona tse phahameng haholo, ha e so sebelisoe ka tekanyo e kholo, 'me ho eketsoa ha li-filler tsa khabone hangata ho etsa hore' mala oa sehlahisoa o be motšo, e leng se lekanyelitsoeng ts'ebelisong ea lihlahisoa tse mebala e bobebe.
Tafole ea likateng
Ka dilemo tse ka bang 20 indastering ya disebediswa tsa extrusion tse bohlale, o bile le mesebetsi ya bohlokwa ho Jwell Machinery, ho kenyeletswa le Motsamaisi Kakaretso le Modulasetulo ya Potolohang. Ho tloha ka 2024, o laotse makala a mangata a ka tlase, a kganna katoloso ya kgwebo le ntlafatso ya diindasteri, ha a ntse a etella pele boqapi tlhahisong e bohlale le kgolo ya lefatshe.
