Tlhaloso e tloaelehileng ea hlobo ea polasetiki

Tlhaloso e tloaelehileng ea hlobo ea polasetiki

Hlobo ea polasetiki ke khutsufatso ea hlobo e kopaneng e sebelisetsoang ho bopa ha compression, extrusion molding, ente, foam le foam e tlase.Liphetoho tse hokahaneng tsa hlobo ea mold convex le concave hlobo le sistimi e thusang e ka sebetsanang le letoto la likarolo tsa polasetiki tsa libopeho tse fapaneng le boholo bo fapaneng.Mefuta ea polasetiki ke 'm'a indasteri, 'me lihlahisoa tse ncha hona joale li kenyelletsa polasetiki.

Haholo-holo e kenyelletsa hlobo e tšehali e nang le sekoti se feto-fetohang se entsoeng ka hlobo e tšehali e kopantsoeng le substrate e kopantsoeng ke hlobo e tšehali, karolo ea hlobo ea basali le boto ea karete e kopantsoeng ea hlobo e tšehali, le substrate e kopantsoeng ea "convex hlobo", karolo ea "convex" ea "convex" mold, karete ea mold e kopantsoeng. Setebele se nang le bokahare bo feto-fetohang bo entsoeng ka lipoleiti tse entsoeng ka mahlakoreng.
Bakeng sa ho ntlafatsa ts'ebetso ea li-plastiki, lisebelisoa tse fapaneng tse thusang, tse kang li-filler, li-plasticizers, lubricant, stabilizers, colorants, joalo-joalo, li tlameha ho kenngoa ho polymer hore e be polasetiki e sebetsang hantle.

1. Resin ea maiketsetso ke karolo ea bohlokoa ka ho fetisisa ea lipolasetiki, 'me litaba tsa eona ka polasetiki hangata ke 40% ho isa ho 100%.Hobane litaba li le kholo, 'me mofuta oa resin hangata ke oona o khethollang mofuta oa polasetiki, hangata batho ba nka resin e le lentsoe le tšoanang le la polasetiki.Ka mohlala, ferekanya resin ea polyvinyl chloride le lipolasetiki tsa polyvinyl chloride, le li-phenolic resin tse nang le polasetiki ea phenolic.Ha e le hantle, resin le polasetiki ke likhopolo tse peli tse fapaneng.Resin ke polima e tala e sa sebetsoang e sa sebelisoeng feela ho etsa lipolasetiki, empa hape ke thepa e tala bakeng sa ho roala, likhomaretsi le likhoele tsa maiketsetso.Ho phaella karolong e nyenyane haholo ea polasetiki e nang le 100% resin, boholo ba polasetiki bo hloka lintho tse ling ho phaella ho karolo e ka sehloohong ea resin.

2. Filler Filler e boetse e bitsoa filler, e ka ntlafatsang matla le ho hanyetsa mocheso oa polasetiki le ho fokotsa litšenyehelo.Ka mohlala, ho eketsoa ha phofo ea lehong ho resin ea phenolic ho ka fokotsa litšenyehelo haholo, ho etsa hore polasetiki ea phenolic e be e 'ngoe ea li-plastiki tse theko e tlaase, ha e ntse e ntlafatsa haholo matla a mochine.Li-filler li ka aroloa ka mefuta e 'meli: li-filler tsa organic le li-inorganic fillers, tsa pele tse kang phofo ea patsi, masela, pampiri le likhoele tse fapaneng tsa masela, le tse ling tse kang fiber ea khalase, lefatše la diatomaceous, asbestos le carbon black.

3. Li-Plasticizers Li-plasticizers li ka eketsa polasetiki le ho feto-fetoha ha polasetiki, ho fokotsa brittleness, le ho etsa hore polasetiki e be bonolo ho sebetsa le ho bōptjoa.Li-plasticizers ka kakaretso ke metsoako ea lintho tse phelang tse belang haholo tse kopantsoeng le resin, tse se nang chefo, tse sa nkheng, 'me li tsitsitse ho khanya le mocheso.Tse sebelisoang haholo ke phthalate esters.Ka mohlala, ha ho etsoa lipolasetiki tsa polyvinyl chloride, haeba li-plasticizers tse ling li eketsoa, ​​​​lipolasetiki tse bonolo tsa polyvinyl chloride li ka fumanoa;haeba ho se na li-plasticizers tse kenyelletsoeng (chelete ea <10%), li-plastiki tsa polyvinyl chloride tse thata li ka fumanoa.

4. Stabilizer E le ho thibela resin ea maiketsetso hore e se ke ea senyeha le ho senngoa ke khanya le mocheso nakong ea ho sebetsa le ho sebelisoa, le ho lelefatsa bophelo ba tšebeletso, stabilizer e tlameha ho kenngoa ka polasetiki.Hangata e sebelisoa ke stearate le epoxy resin.

5. Colourants Colorants e ka etsa hore polasetiki e be le mebala e fapaneng e khanyang le e ntle.Lidae tsa tlhaho tse sebelisoang hangata le li-pigment tsa inorganic joalo ka mebala.

6. Lubricant Mosebetsi oa lubricant ke ho thibela polasetiki hore e se ke ea khomarela hlobo ea tšepe nakong ea ho bōptjoa, 'me ka nako e ts'oanang e etsa hore bokaholimo ba polasetiki bo be boreleli le bo botle.Litlolo tse sebelisoang ka tloaelo li kenyelletsa asiti ea stearic le letsoai la eona la calcium le magnesium.Ho phaella ho li-additives tse ka holimo, li-flame retardants, li-foaming agents, li-antistatic agents, joalo-joalo li ka boela tsa ekeletsoa polasetiki.


Nako ea poso: Dec-03-2020