Tlhahiso ea letlalo la maiketsetso la polyvinyl chloride (PVC) ke mokhoa o rarahaneng o hlokang botsitso bo phahameng ba mocheso le ho tšoarella ha thepa. PVC ke thermoplastic e sebelisoang haholo e tsebahalang ka ho feto-fetoha ha maemo, empa ka tlhaho ha e tsitsa ha mocheso o le holimo, ho hlokahala hore ho sebelisoe li-stabilizers. Li-stabilizers tsa potassium-zinc li hlahile e le boqapi bo bohlokoa tšimong ena, bo fanang ka melemo e mengata ho feta li-stabilizers tsa setso. Li-stabilizers li bohlokoa ka ho khetheha indastering ea letlalo ea maiketsetso ea PVC ka lebaka la thepa ea bona e phahameng ea ho tsitsisa mocheso le melemo ea tikoloho.
Litšobotsi le Litšobotsi tsa Potassium-Zinc Stabilizers
Potassium-zinc stabilizers, eo hape e tsejoang e le K-Zn stabilizers, ke motsoako o kopaneng oa metsoako ea potasiamo le zinki e etselitsoeng ho matlafatsa botsitso ba mocheso oa PVC. Li-stabilizer tsena li nka sebaka sa li-stabilizer tse thehiloeng ho loto, tse felisitsoeng haholo ka lebaka la mathata a tikoloho le bophelo bo botle. Lintho tse ka sehloohong tsa li-stabilizers tsa potasiamo-zinki li kenyelletsa botsitso bo botle ba mocheso, pepeneneng e ntlafalitsoeng, le tšebelisano e ntlafalitsoeng le libopeho tse fapaneng tsa PVC.
* Thermal Stability:Li-stabilizers tsa potassium-zinc li sebetsa haholo ho thibela ho senyeha ha PVC ka mocheso o phahameng. Nakong ea ts'ebetso ea letlalo la maiketsetso la PVC, thepa e kenngoa mocheso o moholo, o ka etsang hore liketane tsa polymer li senyehe, tse lebisang ho senyeha ha mebala, ho lahleheloa ke thepa ea 'mele, le ho lokolloa ha hydrochloric acid (HCl). Li-stabilizers tsa potassium-zinc li thusa ho boloka botšepehi ba ketane ea polymer ea PVC, ho netefatsa hore thepa e boloka thepa ea eona esita le tlas'a mocheso oa nako e telele.
*Ponaletso le ho Tšoara mebala:Li-stabilizers tsena li kenya letsoho tlhahisong ea lihlahisoa tse hlakileng le tse khanyang tsa PVC. Li thibela ho fetoha mosehla le mebala e meng, ho netefatsa hore lihlahisoa tsa ho qetela tsa letlalo la maiketsetso li boloka bokhabane ba tsona. Sena ke sa bohlokoa ka ho khetheha indastering ea feshene le ea likoloi, moo ponahalo ea letlalo la maiketsetso e leng ntlha ea bohlokoa ea boleng.
*Tshireletso ya Tikoloho:E 'ngoe ea melemo ea bohlokoa ea li-stabilizer tsa potassium-zinc ke botsoalle ba tsona ba tikoloho. Ho fapana le li-stabilizers tse thehiloeng ho loto, li-stabilizers tsa potassium-zinc ha li lokolle lintho tse chefo nakong ea ho sebetsa kapa ho lahla. Sena se ba etsa khetho e sireletsehileng bakeng sa bahlahisi le basebelisi ba ho qetela, e tsamaellanang le tlhokahalo e ntseng e hola ea thepa e tšoarellang le e seng chefo liindastering tse fapaneng.
Mekhoa ea Kopo
Ho kopanngoa ha li-stabilizers tsa potassium-zinc ho lihlahisoa tsa PVC ho kenyelletsa mehato e mengata, e atisang ho etsahala nakong ea ho kopanya. Li-stabilizer tsena li ka kenyelletsoa ka mekhoa e fapaneng, ho kenyelletsa ho kopanya ho omileng, extrusion, le molding ea ente.
1.Dry Blending:Ka ho kopanya ho omileng, li-stabilizers tsa potasiamo-zinki li kopantsoe le resin ea PVC le lisebelisoa tse ling ka motsoako o phahameng oa lebelo. Motsoako ona o beoa tlas'a mocheso o phahameng le matla a ho kuta ho etsa bonnete ba kabo e tšoanang ea li-stabilizers ho pholletsa le matrix a PVC. Ts'ebetso ena e bohlokoa bakeng sa ho fihlela botsitso bo tsitsitseng ho pholletsa le sehlopha sohle sa lisebelisoa tsa PVC.
2. Extrusion:Nakong ea extrusion, motsoako oa PVC o omeletseng o kenngoa ka har'a extruder, moo o qhibilihisitsoeng le ho homogenized. Li-stabilizers li netefatsa hore thepa ea PVC e lula e tsitsitse 'me ha e fokotsehe tlas'a mocheso o phahameng le likhatello tse amehang ho extrusion. Ka mor'a moo, PVC e ntšitsoeng e etsoa maqephe kapa lifilimi, tse sebelisoang ho etsa letlalo la maiketsetso.
3. Ho Bopa ka Ente:Bakeng sa lits'ebetso tse hlokang libopeho le meralo e felletseng, ho sebelisoa ente. Motsoako oa PVC, o nang le potassium-zinc stabilizers, o kenngoa ka har'a mokoti oa hlobo moo o pholileng le ho tiisa sebopeho se lakatsehang. Li-stabilizers li phetha karolo ea bohlokoa ho boloka botsitso ba mocheso nakong ea ts'ebetso ena, ho thibela bofokoli sehlahisoa sa ho qetela.
Hobaneng ha Potassium-Zinc Stabilizers e bitsoa "Kickers"
Lentsoe "kicker" moelelong oa li-stabilizers tsa potassium-zinc le tsoa ho bokhoni ba bona ba ho potlakisa ts'ebetso ea gelation ea PVC plastisols nakong ea ho futhumatsa. Ha ho etsoa letlalo la maiketsetso la PVC, ho bohlokoa ho fihlella gelation le fusion e lakatsehang ea PVC plastisol. Li-stabilizers tsa potassium-zinc li sebetsa e le li-kickers ka ho theola matla a ts'ebetso a hlokahalang bakeng sa gelation, kahoo e potlakisa ts'ebetso eohle. Gelation ena e potlakileng e molemo hobane e lebisa ho lipotoloho tse potlakileng tsa tlhahiso le lits'ebetso tse sebetsang hantle tsa tlhahiso.
Melemo le Tshebetso
Li-stabilizers tsa potassium-zinc li fana ka melemo e mengata ea ts'ebetso tlhahisong ea letlalo la maiketsetso la PVC. Tsena li kenyelletsa:
* Ntlafatso ea Botsitso ba Thermal:Li-stabilizers tsena li fana ka botsitso bo phahameng ba mocheso ha bo bapisoa le li-stabilizers tsa setso, ho netefatsa hore lisebelisoa tsa PVC li ka mamella mocheso o phahameng oa ho sebetsa ntle le ho senyeha. Sena ke sa bohlokoa ka ho khetheha indastering ea letlalo la maiketsetso, moo maqephe a PVC le lifilimi li kenngoa mocheso nakong ea mekhoa e kang embossing le laminating.
*Boleng bo ntlafetseng ba Sehlahiswa:Ka ho thibela ho senyeha le ho senyeha ha mebala, li-stabilizers tsa potassium-zinc li thusa ho hlahisa letlalo la maiketsetso la boleng bo phahameng la PVC le nang le bokooa bo fokolang. Sena se lebisa ho sehlahisoa se tsitsitseng le se ka tšeptjoang, se bohlokoa bakeng sa ho finyella litekanyetso tsa indasteri le litebello tsa bareki.
*Ho Ikamahanya le Tikoloho:Ts'ebeliso ea li-stabilizers tsa potassium-zinc e lumellana le litlhoko tse ntseng li eketseha tsa taolo le bareki bakeng sa lisebelisoa tse baballang tikoloho. Li-stabilizers tsena ha li lokolle lintho tse kotsi, ho etsa hore mokhoa oa tlhahiso o bolokehe le o tsitsitseng haholoanyane.
* Ho sebetsa ka katleho:Tšebeliso ea li-stabilizers tsa potassium-zinc e ka ntlafatsa ts'ebetso ea ts'ebetso ka ho fokotsa menyetla ea ho ba le bokooa bo kang mahlo a litlhapi, li-gel le li-specks tse ntšo. Sena se fella ka chai e phahameng le litšenyehelo tse tlase tsa tlhahiso, e leng se tlatsetsang katlehong e akaretsang ea moruo oa ts'ebetso ea tlhahiso.
Tšebeliso ea li-stabilizers tsa potassium-zinki indastering ea letlalo ea maiketsetso ea PVC e emela tsoelo-pele e kholo ho thekenoloji ea botsitso ba thepa. Li-stabilizer tsena li fana ka botsitso bo hlokahalang ba mocheso, pepeneneng, le polokeho ea tikoloho e hlokahalang bakeng sa ho hlahisa lihlahisoa tsa boleng bo holimo tsa letlalo la maiketsetso. Ha indasteri e ntse e tsoela pele ho etelletsa pele botsitso le polokeho, li-stabilizers tsa potassium-zinc li ikemiselitse ho bapala karolo ea bohlokoa haholo nakong e tlang ea tlhahiso ea letlalo la maiketsetso la PVC.
Nako ea poso: Jun-25-2024