Liaparo tsa polasetiki tsa phofo

Liaparo tsa polasetiki tsa phofo ke eng?

Liaparo tsa phofo ea polasetiki ke mofuta oa pente ea thermoplastic e kenyeletsang ho sebelisa phofo ea polasetiki e omileng holim'a substrate, ebe e phekoloa tlas'a mocheso ho etsa qetello e thata, e tšoarellang le e khahlehang. Ts'ebetso ena e atisa ho sebelisoa ho koahela bokaholimo ba tšepe ho fana ka tšireletso khahlanong le mafome, ho hohloka le ho putlama ha leholimo, hammoho le ho ntlafatsa ponahalo ea bona e ntle.

Ts'ebetso ea ho koahela phofo e kenyelletsa mehato e 'maloa, ho qala ka ho lokisa substrate. Sena se kenyelletsa ho hloekisa le ho lokisa bokaholimo esale pele ho netefatsa hore ha bo na litšila, oli le litšila tse ling tse ka sitisang ho khomarela ha phofo. Ka mor'a moo, phofo e sebelisoa holim'a bokaholimo ho sebelisoa bethe e nang le mokelikeli kapa sethunya sa electrostatic se etsang hore li khomarele substrate. Substrate e koahetsoeng e futhumatsoa ka ontong, e qhibilihisang phofo 'me e etse hore e phalle le ho fola, e etse seaparo se boreleli, se lekanang.

le menyetla

E 'ngoe ea melemo e ka sehloohong ea ho roala phofo ea polasetiki ke hore e na le botsoalle ba tikoloho. Ho fapana le liphahlo tse tloaelehileng tsa mokelikeli, tse nang le li-solvents tse ka lokollang li-VOC tse kotsi (volatile organic compounds) sepakapakeng, liphahlo tsa phofo hangata ha li na solvent mme li hlahisa litšila tse nyane haholo. Sena se etsa hore e be khetho e tsitsitseng le e bonolo ho eco bakeng sa ho roala mefuta e mengata ea thepa.

Molemo o mong oa liphahlo tsa polasetiki ke hore o fana ka tšireletso e babatsehang ea ho senya. Ho roala ha phofo ho etsa hore ho be le mokoallo pakeng tsa substrate le tikoloho, ho thibela mongobo le lintho tse ling tse senyang hore li se ke tsa kenella ka holim'a metsi le ho baka tšenyo. Sena se etsa hore liphahlo tsa phofo e be tse loketseng ho sebelisoa libakeng tse thata kapa tse senyang, joalo ka libaka tsa leoatle kapa indasteri.

Mefuta ea liphahlo tsa polasetiki

E 'ngoe ea lintlha tsa bohlokoa tse khethollang boleng le ts'ebetso ea lipehelo tsa phofo ea polasetiki ke motsoako oa phofo ka boeona. Lipehelo tse ngata tsa phofo li entsoe ka li-polymer tsa thermoplastic , tse etsang qetello e thata le e tšoarellang nakong ea ts'ebetso ea ho lokisa. Li-polymer tse tloaelehileng tse sebelisoang lipehelong tsa phofo ea thermoplastic li kenyelletsa Polyethylene, polypropylene , polyester, polyvinyl chloride, polyether e nang le chlorine, polyamide, cellulose, polyester, jj.

1. Seaparo sa phofo sa polyethylene se na le ts'ebetso e ntle ea ho thibela mafome, ho hanyetsa lik'hemik'hale, ho thibela motlakase hantle le ho hanyetsa mahlaseli a UV. Se ka sebelisoa bakeng sa litanka tsa lik'hemik'hale, li-impeller, lipompo, mabota a ka hare a liphaephe, likhetla tsa bokaholimo, maqephe a tšepe, matlooa a ka hare a sehatsetsi, likarolo tsa koloi, jj. Sekoli sa sona ke matla a tlase a mechini le ho se khomarele hantle ha substrate.

2. Seaparo sa phofo ea naylon , se tsejoang hape e le polyamide, se na le ntlha e phahameng ea ho qhibiliha ka lebaka la ho kopana ha haedrojene pakeng tsa liathomo tsa chlorine tse ketane ea limolek'hule le liathomo tsa haedrojene tse likarolong tse haufi tsa ketane. Naylon e na le matla a phahameng a mechini, khanyetso ea tšusumetso, thata, khanyetso ea ho tsofala, coefficient e tlase ea khohlano, ho monngoa ha lerōle le tlaase, jj. E ka sebelisoa bakeng sa likarolo tse khethehileng tse kang li-impeller tsa pompo ea metsi, likarolo tsa mechini ea masela, likarolo tsa piston tse qalang enjene ea disele, li-propeller tsa likepe tsa sailboat, mabili a likoloi, li-bracket tsa lithuthuthu, mechini ea temo, lisebelisoa tsa kaho le tsa lipapali. Seaparo sa phofo ea naylon ha se na chefo, ha se na tatso, se hanela metsi a letsoai, hlobo le libaktheria, 'me se loketse ho fafatsa likarolo tsa indasteri ea lijo, liphaephe tsa metsi a nooang le liphutheloana tsa lijo.

3. Polyvinyl chloride phofo ke e 'ngoe ea li-polymers tse sebelisoang ka ho fetisisa tse ka hlahisoang ka bongata ka mor'a indasteri. E na le khanyetso e ntle ea solvent, e hanyetsanang le metsi le asiti e ntle, e hanyetsa phello, e ka thibela tšilafalo ea lijo, 'me e na le insulation e phahameng bakeng sa ho fafatsa ka electrostatic. E sebelisoa haholo bakeng sa ho roala liphanele tsa mesh ea tšepe, thepa ea ka tlung ea tšepe, lisebelisoa tsa lik'hemik'hale, joalo-joalo.

4. Ho roala ha phofo ea Fluororesin ho ka lokisoa ho tloha ho li-polymers tse sa tšoaneng tsa fluorinated, tse kang polytetrafluoroethylene (PTFE), polytrifluorochlorethylene (PTFCE), polyvinylidene fluoride (PVDF), joalo-joalo. PTFE e na le sebaka se phahameng sa ho qhibiliha se fihlang ho 327 ℃ 'me se ka sebelisoa nako e telele sebakeng sa -250 ~ 250 ℃. E boetse e na le matla a ho hanyetsa kutu, esita le ho aqua regia, ts'ebetso e ntle ea dielectric, coefficient e tlase haholo ea likhohlano le thepa ea ho itlotsa, kahoo e tsejoa e le "morena oa polasetiki". E sebelisoa haholo ho petroleum, lik'hemik'hale tse thibelang ho bola, ho tiisa, ho jara thepa ea ho tlotsa, lisebelisoa tsa elektroniki le tsa motlakase, liporo tsa sekepe le liphahlo tse sa thunngoeng. PTCE e theko e tlase ho feta PTFE, 'me mocheso oa ho sebetsa o ka theoha. Ho roala ho ka sebelisoa nako e telele ka tlase ho 130 ℃. Bokhoni ba eona ba ho hanyetsa alkali le fluor

Ka kakaretso, liphahlo tsa polasetiki ke khetho e fapaneng le e sebetsang ea ho roala e fanang ka mefuta e mengata ea melemo le melemo ho feta liphahlo tse tloaelehileng tsa mokelikeli. Ho tloha mefuteng ea eona ea tikoloho ho isa ho kutu e ntle haholo le ho hanyetsa boemo ba leholimo, ho roala phofo ke khetho e ntseng e tsebahala haholo bakeng sa liindasteri le lits'ebetso tse fapaneng.

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