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Mefuta ea mekhoa ea phetolo ea polasetiki ke efe?
2021-03-08 22:59  Click:538

1. Tlhaloso ea polasetiki:

Polasetiki ke sesebelisoa se nang le polima e phahameng e le karolo ea mantlha. E entsoe ka lehoakhoa la maiketsetso le li-filler, li-plasticizers, li-stabilizers, lubricants, pigments le lisebelisoa tse ling. E boemong ba mokelikeli nakong ea tlhahiso le ts'ebetso ea ho etsa mohlala, E hlahisa sebopeho se tiileng ha ts'ebetso e phethetsoe. Karolo e ka sehloohong ea polasetiki ke lehoakhoa la maiketsetso. "Resin" e bolela polima e nang le limolek'hule tse phahameng e e-so ka e tsoakoa le litlatsetso tse fapaneng. Resin e na le boima ba polasetiki bo ka bang 40% ho isa ho 100%. Lintho tsa mantlha tsa polasetiki li khethoa haholo ke thepa ea lehoakhoa, empa li-additives le tsona li bapala karolo ea bohlokoa.

2. Mabaka a phetoho ea polasetiki:

Seo ho thoeng ke "phetolo ea polasetiki" se bolela mokhoa oa ho eketsa ntho e le 'ngoe kapa tse ling ho lehoakhoa la polasetiki ho fetola tšebetso ea lona ea mantlha, ho ntlafatsa tšobotsi e le' ngoe kapa ho feta, ka hona ho fihlela sepheo sa ho holisa boholo ba ts'ebeliso. Lisebelisoa tsa polasetiki tse fetotsoeng li bitsoa "li-plastiki tse fetotsoeng".

Phetoho ea polasetiki e bua ka ho fetola thepa ea thepa ea polasetiki ka tsela e lebelletsoeng ke batho ka mekhoa ea 'mele, ea lik'hemik'hale kapa ka bobeli, kapa ho fokotsa haholo litšenyehelo, kapa ho ntlafatsa thepa e itseng, kapa ho fana ka polasetiki Mosebetsi o mocha oa thepa. Ts'ebetso ea ho fetoloa e ka etsahala nakong ea ho fetoloa ha lehoakhoa la maiketsetso, ke hore, phetoho ea lik'hemik'hale, joalo ka ho kopanya lipompo, ho hlomathisa, ho kopanya marang-rang, jj. ho tlatsa le ho kopanya li-polymerization. Ho kopanya, ho ntlafatsa, jj.

Mefuta ea mekhoa ea phetoho ea polasetiki:

1) Matlafatso: Morero oa ho eketsa ho tenyetseha le matla a thepa e fihlelleha ka ho eketsa likhoele kapa li-filake tse kang khalase ea fiber, fiber ea khabone le phofo ea mica, joalo ka nylon ea khalase e matlafalitsoeng ea lisebelisoa tsa motlakase.

2) Toughening: Morero oa ho ntlafatsa ho thatafala le matla a tšusumetso ea polasetiki ho fihlelleha ka ho eketsa rabara, thermoplastic elastomer le lintho tse ling ho polasetiki, joalo ka polypropylene e thata e sebelisoang haholo likoloi, lisebelisoa tsa lapeng le lits'ebetso tsa indasteri.

3) Ho kopanya: ka mokhoa o ts'oanang kopanya lisebelisoa tse peli kapa ho feta tse sa sebetseng tsa polasetiki ka motsoako o lumellanang hantle le o monyane o arotsoeng ho fihlela litlhoko tse itseng ho latela thepa ea 'mele le mochini, thepa ea mahlo le thepa ea ts'ebetso. Mokhoa o hlokehang.

4) Ho tlatsa: Morero oa ho ntlafatsa thepa ea 'mele le mochini kapa ho fokotsa litšenyehelo ho fihlelloa ka ho tlatselletsa polasetiki.

5) Liphetoho tse ling: joalo ka ts'ebeliso ea li-filler tse tsamaisang motlakase ho fokotsa motlakase oa polasetiki; ho eketsoa ha li-antioxidants le li-stabilizers tse bobebe ho ntlafatsa maemo a leholimo a ts'ireletso ea thepa; ho eketsoa ha mebala le lidae ho fetola 'mala oa thepa; keketso ea litlolo tsa kahare le tsa kantle ho etsa lisebelisoa Ts'ebetso ea ts'ebetso ea polasetiki ea seka-kristale e ntlafalitsoe; moemeli oa nucleating o sebelisetsoa ho fetola litšobotsi tsa kristale ea polasetiki ea seka-crystalline ho ntlafatsa thepa ea eona ea mochini le ea mahlo.
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