Phapang pakeng tsa silicone le rabara ea silicone

Rabara ea silicone e sebelisoa haholo, empa batho ba bang ba ka 'na ba sitoa ho khetholla pakeng tsa rabara ea silicone le gel ea silika,' me lebitso ha le e-s'o fihleloe qeto.Kajeno, mohlophisi o tla shebisisa liphapang le lihlopha pakeng tsa silicone le rabara ea silicone.Hona joale, khopolo ea lentsoe "silicone" ha e tloaelehe.Ho fihlela joale, ha ho na lebitso le hlalositsoeng hantle.Ha u utloa lentsoe "silica gel", u lokela ho utloisisa hore na ke silica gel kapa silicone e nang le rabara ea maiketsetso e nang le li-silicone, kapa hore na ke gel ea silika ea inorganic kapa silika ea silika ha ho hlahlojoa.

"Silica gel" e boleloa ke mantsoe a 'maloa a amanang joalo ka rabara ea silicone, rabara ea silicone le silicone.Kamano pakeng tsa rabara ea silicone le gel ea silica e fapane le rabara ea silicone 'me e kenyelletsa rabara ea silicone.Rabara ea silicone ke "silica gel" ea tlhaho ea "silica gel"."Silicone" ke lentsoe le sebelisoang Hong Kong le Taiwan.E bitsoa "silicone" naheng ea China.Silicone le Silicone ke liphetolelo tsa silicone ea Senyesemane.Hangata ho boleloa hore e boetse e bolela "silicone".

Ka kakaretso, gel ea silica e ka aroloa ka mekhahlelo e 'meli, gel ea silika ea tlhaho le gel ea silika ea inorganic, ho latela thepa le sebopeho sa tsona.Ntlha ea pele, ke tla hlalosa ka rabara ea silicone.

1. Ts'ebetso ea rabara ea silicone le litekanyetso tsa tekheniki

Rabara ea silicone ke sehlopha se seholo le se sebelisoang ka ho fetesisa sa lihlahisoa tsa silicone.Kamora ho ts'oaroa ha vulcanization, rabara ea silicone e na le khanyetso e ntle ea mocheso, ho hanyetsa mocheso o tlase, ho hanyetsa boemo ba leholimo, ho leleka metsi, ho kenya motlakase, le inertia ea 'mele.

Lintho tsa Bohlokoa le Lisebelisoa tsa Lihlahisoa tsa Rubber tsa Silicone: Ho itšetlehile ka mocheso oa bona oa vulcanization, rabara ea silicone e ka aroloa ka mekhahlelo e 'meli: mocheso o phahameng (ho futhumala) vulcanization le mocheso oa mocheso oa kamore.Rabara ea mocheso o phahameng e sebelisoa haholo ha ho etsoa lihlahisoa tse fapaneng tsa rabara ea silicone, athe rabara ea mocheso oa kamore e sebelisoa haholo-holo e le likhomaretsi, lisebelisoa tsa lipitsa le hlobo.

Rabara ea silicone e chesang e chesang (HTV)

Heat vulcanized silicone rabara (HTV) ke sehlopha sa bohlokoa ka ho fetisisa sa lihlahisoa tsa silicone, 'me methyl vinyl silicone rabara (VMQ) ke sehlopha sa bohlokoa ka ho fetisisa sa HTV se tsejoang ka hore ke rabara e phahameng ea mocheso.Methyl vinyl silicone rabara (rabara e tala) ha e na 'mala, ha e na monko, ha e na chefo ebile ha e na litšila tsa mochini.Rabara e tala e kopantsoe le li-reinforcements tse loketseng, li-control tsa sebopeho, li-vulcanizers le li-additives tse ling ha ho hlokahala.Ho hloekisoa, ho futhumatsa, ho hatella kapa ho senya, ho lateloa ke vulcanization ea mehato e 'meli ho lihlahisoa tse fapaneng.Lihlahisoa tsa eona li na le tšireletso e ntle ea motlakase, ho hanyetsa ka matla ho li-arcs, li-coronas, le li-sparks, ho se kene metsi, bopaki ba mongobo, ho hanyetsa tšusumetso, ho hanyetsa tšusumetso, inertia ea physiological, breathability le thepa e meng.E sebelisoa haholo ho bofofisi, lisebelisoa, lisebelisoa tsa elektroniki le lisebelisoa, navigation, metallurgy, mechini, likoloi, bongaka le bophelo bo botle, le mafapha a mang, 'me e ka sebelisoa ho etsa mehele ea tiiso, li-gaskets, li-tubes le likhoele tsa libopeho tse fapaneng.Litho tsa motho, methapo ea mali, li-membrane tse phefumolohang le hlobo ea rabara, lisebelisoa tsa ho lokolla hlobo bakeng sa ho etsa ka nepo, jj.

Mocheso oa kamore o nang le rabara ea silicone (RTV)

RTV silicone rabara ka kakaretso e na le mekhahlelo e 'meli: mofuta oa condensed le mofuta oa tlatsetso."Sekhomaretsi sa mocheso oa kamore ea ho eketsa se thehiloe holim'a polysiloxane e nang le sehlopha sa vinyl, e sebelisa siloxane e nang le hydrogen e le sesebelisoa se kopanyang, 'me e kopana le karabelo e kopanyang mocheso oa kamore ho ea ho mocheso o mahareng ka pel'a mothusi wa ho fetoha elastomer.E na le mokhoa o babatsehang oa ho leleka metsi le ho kenya motlakase, 'me ka nako e ts'oanang, e na le lisebelisoa tse babatsehang tsa' mele le tsa mechine tse kang matla a tsitsitseng, bolelele bo lekanang, le matla a ho senya ka lebaka la ho kenngoa ha lihlopha tse sebetsang tsa li-terminal.Radiation sulphurization le ho eketsa peroxide.E loketse mekhoa e fapaneng ea sulfurization e kang sulfurization le ho eketsa molding sulfurization, 'me e sebelisoa haholo bakeng sa ho hanyetsa mocheso, ho hanyetsa mongobo, ho kenya motlakase, le lihlahisoa tsa rabara tsa silicone tse matla haholo.

Rabara ea silicone e nang le mocheso oa kamore ea mofuta oa condensation e tšoauoa ka karabelo ea condensation lipakeng tsa silicone hydroxyl le lisebelisoa tse ling tse sebetsang, 'me e hokahane ka mocheso oa kamore ho etsa elastomer.Lihlahisoa li arotsoe ka sephutheloana sa karolo e le 'ngoe le sephutheloana sa likarolo tse peli.sebopeho.Karolo e le 'ngoe ea rabara ea silicone e nang le vulcanized (RTV-1 ka nako e khutšoanyane) ke e' ngoe ea lihlahisoa tse ka sehloohong tsa rabara e khutsufalitsoeng ea silicone.Hangata e entsoe ka li-polymers tsa motheo, li-crosslinkers, li-catalysts, li-filler le li-additives.Sehlahisoa se loketse haholo hobane se phuthetsoe ka hose e tiisitsoeng, e hatelloa ka ntle nakong ea tšebeliso, e pepesehile moeeng ebe e kenngoa ka har'a elastomer.Sehlahisoa sa vulcanized se ka sebelisoa nako e telele ho mocheso oa (-60 ho + 200 ° C), se na le motlakase o motle haholo le botsitso ba lik'hemik'hale, se na le metsi a matle, ozone le ho hanyetsa boemo ba leholimo, 'me se na le ho khomarela hantle ho litšepe tse fapaneng.nyollelo.Le lisebelisoa tse seng tsa tšepe.Ho fihlella.E sebelisoa haholo bakeng sa ho roala likarolo tse fapaneng tsa elektroniki le lisebelisoa tsa motlakase, 'me e bapala karolo ea ho kenya letsoho, bopaki ba mongobo, ho hanyetsa tšusumetso, lisebelisoa tsa ts'ireletso ea holim'a lisebelisoa tsa semiconductor, sealing filler, le sekhomaretsi sa elastic.

Likarolo tse peli tsa mocheso oa kamore ea vulcanized silicone rabara (RTV-2 rabara e khutšoanyane) ha e bonolo joaloka rabara ea RTV-1, empa e na le mefuta e mengata e fapaneng ea likaroloana.Lihlahisoa tse nang le vulcanized tse nang le litlhaloso le litšobotsi tse ngata li ka fumanoa ka mofuta o le mong.Ka hona, e sebelisoa haholo e le lisebelisoa tsa ho kenya letsoho, ho kenya letsoho, ho koala, ho tiisa, ho netefatsa mongobo, ho netefatsa li-vibration le ho etsa li-roller liindasteri tse kang lisebelisoa tsa elektroniki, likoloi, mechini, kaho, masela, lik'hemik'hale le indasteri e bobebe., Ho hatisa joalo-joalo Ho phaella moo, hobane RTV-2 e na le mokhoa o babatsehang oa ho lokisoa ha hlobo, e sebelisoa haholo e le thepa ea hlobo e bonolo bakeng sa ho kopitsa le ho etsa thepa ea setso, mesebetsi ea matsoho, lipapali, lisebelisoa tsa elektronike le likarolo tsa mochine.

E 'ngoe ea litšebeliso tse tloaelehileng tsa li-silicone sealants ke marako a likharetene tsa khalase.Liforeimi tsa khalase le aluminium alloy li khomaretsoe ka sekhomaretsi sa sebopeho sa silicon e le thepa ea mabota a kantle, manonyeletso a telescopic ha a kenelle metsi 'me a tiisitsoe ka sekhomaretsi sa boemo ba leholimo ba silicon.Lisebelisoa tse ling li kenyelletsa mamati a aluminium alloy le lifensetere, mamati a tšepe ea polasetiki le ho koala fensetere, ho kenya likhalase le li-groove joints, rivet le fixing screw sealing: sanitary ware le countertops, litiiso tse sa keneleng metsi lipakeng tsa marako, kichine, thepa ea ka tlung, matloana a metsi, siling, tšepe. marulelo, li-showcases, li-counters, liphanele tsa lebota, lipoleiti tsa tšepe tse mebala-bala.E sebelisetsoa ho thibela metsi ho thibela metsi pakeng tsa lipoleiti tsa litsela tse kholo.

Ntle le li-sealants tsa kaho, RTV e kenyelletsa lisebelisoa tsa ho tiisa tse sebelisoang liindastering tse kang sefofane, limela tsa matla a nyutlelie, lisebelisoa tsa elektronike, mechine le likoloi, lisebelisoa tsa ho boloka li-silicone tse sebelisetsoang ho etsa lisebelisoa tsa elektronike le lisebelisoa tse bonolo tsa hlobo.E kenyelletsa likhomaretsi tsa hlobo tsa silicone tse sebelisitsoeng... Tlhokahalo ea mefuta ena e batla e le tlaase, empa maemong a mangata e bohlokoa.

Gel ea silica e sa sebetseng (gel ea silica)

Inorganic silica gel ke adsorbent e sebetsang haholo, hangata e lokiselitsoeng ka ho arabela silicate ea sodium e nang le sulfuric acid le ho kena letotong la mekhoa ea ka mor'a phekolo e kang ho tsofala le ho phophoma ka asiti.Gelisi ea silika ke ntho ea amorphous mme foromo ea eona ea lik'hemik'hale ke mSiO2.nH2O.Ha e qhibilihe ka metsing le ka li-solvents, ha e na chefo, ha e latsoehe, e tsitsitse lik'hemik'hale, 'me ha e sebetsane le lintho tse ling ntle le li-alkali tse matla le hydrofluoric acid.Mefuta e fapaneng ea gel ea silica e entsoe ka tsela e fapaneng mme e theha meaho e fapaneng ea microporous.

Sebopeho sa lik'hemik'hale le fisiks ea silica gel e etsa qeto ea hore e na le lintho tse ngata tseo ho leng thata ho li nkela sebaka ka lisebelisoa tse ling tse tšoanang: ts'ebetso e phahameng ea adsorption, botsitso bo botle ba mocheso, k'hemistri e tsitsitseng le k'hemistri e tsitsitseng.Matla a phahameng a mochine.Ka lebaka la thepa ea eona ea lik'hemik'hale, e sebelisoa ho etsa mefuta e fapaneng ea lihlahisoa tsa silicone tse kang litiiso tsa silicone, litiiso tsa silicone le lisebelisoa tsa kichineng tsa silicone.

Silika gel e arotsoe ka macroporous silica gel, course pore silica gel, mofuta B silica gel, le pore pore silica gel ho ea ka boholo ba pore bophara.Ka lebaka la phapang ea sebopeho sa pore, litšobotsi tsa adsorption li na le litšobotsi tse ikhethang.Gelisi ea silica e mahoashe e na le matla a holimo a adsorption ha mongobo o lekanyelitsoeng o le holimo, 'me gel ea silika ea pore e na le bokhoni bo boholoanyane ba adsorption ho feta gel ea silika ea mahoashe ha mongobo o lekanyelitsoeng o le tlaase.Mofuta oa B silica gel o pakeng tsa masoba a mahoashe le a matle, 'me palo ea adsorption e boetse e pakeng tsa masoba a mahoashe le a matle.Macroporous silica gel e atisa ho sebelisoa e le catalyst carrier, matting agent, sesepa sa meno le abrasive.

Likarolo tsa sehlahisoa, litšoaneleho tsa ts'ebeliso, le litemoso tsa gel ea silika, lisebelisoa tse tala tsa rabara ea silicone, le lisebelisoa tse tala tsa silicone tsa metsi li fapane.Theknoloji ea ts'ebeliso le ts'ebeliso ea mantlha ea lisebelisoa tse tala tsa silika le rabara ea silicone ea metsi li fapane.Lisebelisoa tse tala li tloaelehile 'me u ka sibolla, ua batlisisa le ho hlahloba haholoanyane.Ithute ka gel ea silica.

Resin ea silicon e sebelisoa haholo e le pente e sireletsang (ho kenyeletsoa li-varnish, enamel, pente e mebala, varnish, joalo-joalo), e kenngoeng ka li-motors tsa H-class le li-coil tsa transformer, 'me e kenngoa ka lesela la khalase, silika ea lesela la khalase le lesela la asbestos.Re etsa likoahelo tsa likoloi le lihlahisoa tsa motlakase.Ka kopo emela moea o kentsoeng ka li-insulated.

Li-resin tsa silicone ke liphahlo tse thibelang mocheso le boemo ba leholimo tse thibelang ho bola, litšepe tse sirelletsang, tse thibelang metsi le tse thibelang mongobo bakeng sa merero ea kaho, lisebelisoa tsa ho lokolla, li-adhesives, le ts'ebetso ea bobeli ho li-plastiki tsa silicone tse sebelisoang ho elektronike, motlakase le tšireletso.E ka sebelisoa e le.indasteri.Lisebelisoa tsa ho paka tsa semiconductor le thepa e sireletsang joalo ka likarolo tsa elektroniki.

Li-resin tsa silicone ke likhatello tse thibelang mocheso le khatello ea mocheso, liaparo tse sireletsang tšepe, tse sa keneleng metsi le tse thibelang mongobo bakeng sa merero ea kaho, lisebelisoa tsa ho lokolla hlobo, likhomaretsi le lisebelisoa tsa elektronike, lihlahisoa tsa motlakase le liindasteri tsa tšireletso.

Ha ho bapisoa le lisebelisoa tse ling tsa silicone, li-resin tsa silicone li na le mefuta e fokolang e fapaneng le karolo e nyane ea mmaraka.

Ha resin e hloekileng ea silicone kapa resin e fetotsoeng ea silicone e sebelisoa e le thepa ea motheo, pente ea silevera e nang le phofo ea aluminium e ka sebelisoa mocheso oa 400-450 ° C esita le 600 ° C. Ha ho bapisoa le li-resin tse tloaelehileng tsa tlhaho, li-silicone li na le khanyetso e ntle ea leholimo, 'me bolelele ba maqhubu a mahlaseli a letsatsi ke 300 nm kapa ho feta, empa li-resin tsa silicone li monya ka tlase ho 280 nm.

Hydrolysis ea li-silicone resin hangata e na le li-monomer tse peli kapa ho feta tse nang le litekanyetso tse fapaneng tsa hydrolysis 'me hangata e sebelisoa ho theola phapang ea litekanyetso tsa hydrolysis tsa li-silane tse fapaneng le ho finyella maemo a tšoanang a co-hydrolysis., Hydrolysis le ho senyeha ha joala ho etsoa ka nako e le 'ngoe.