Tlhaloso e qaqileng ea litšobotsi tsa rabara ea nitrile
Rabara ea Nitrile ke copolymer ea butadiene le acrylonitrile, 'me lihlahisoa tsa eona tse kopantsoeng tsa acrylonitrile li na le tšusumetso e kholo ho thepa ea eona ea mechine, thepa ea ho khomarela le ho hanyetsa mocheso.Ho ea ka litšobotsi tsa butadiene le acrylonitrile monomers, butadiene e na le polarity e fokolang, ha acrylonitrile e na le polarity e matla.Ka hona, litaba tse ngata tsa acrylonitrile holim'a ketane e kholo ea rabara ea nitrile, e mpe le ho feta ho fetoha ha ketane e kholo.Ho phahama ha mocheso o tlase oa brittleness, ho mpefala ha ts'ebetso ea ho hanyetsa mocheso o tlase;Ka lehlakoreng le leng, acrylonitrile e na le mocheso o motle oa ho hanyetsa mocheso hobane nakong ea mocheso, acrylonitrile ka rabara ea nitrile e ka hlahisa lintho tse qhibilihang ka joala ho thibela ho senyeha ha mocheso oa oxidative.Ka hona, ho hanyetsa mocheso oa rabara ea nitrile ho eketseha ka ho eketseha ha litaba tsa acrylonitrile;Ho sa le joalo, ka lebaka la polarity factor ea acrylonitrile, ho eketsa litaba tsa acrylonitrile ho ka ntlafatsa matla a sekhomaretsi a rabara ea nitrile.Ka hona, ke habohlokoa haholo ho hlahloba litaba tsa acrylonitrile e tlameletsoeng ka rabara ea nitrile.
Litaba tsa acrylonitrile li na le phello e kholo ts'ebetsong ea NBR.Likahare tsa acrylonitrile tsa rabara e akaretsang ea acrylonitrile nitrile li pakeng tsa 15% le 50%.Haeba litaba tsa acrylonitrile li eketseha ho feta 60%, li tla thatafala, tse tšoanang le letlalo, 'me ha li sa na thepa ea rabara.
1. Ho hanyetsa oli le ho hanyetsa solvent: Rabara ea Nitrile e na le khanyetso ea oli ka rabara e tloaelehileng.Rabara ea nitrile e hanyetsana le oli ea petroleum, benzene, le lihlapolli tse ling tse se nang polar ho feta rabara ea tlhaho, rabara ea styrene butadiene, rabara ea butyl, le lirabara tse ling tse se nang polar, empa hape e betere ho feta rabara ea polar chlorinated.Leha ho le joalo, rabara ea nitrile e na le khanyetso e fokolang ho oli ea polar le solvents (e kang ethanol), empa e hanyetsana le rabara e seng polar.
2. Litšobotsi tsa ts'ebetso ea 'mele: Rabara ea Nitrile ke mohaho o sa reroang oa li-copolymers tsa nitrile tse sa khanyeng tlas'a tsitsipano.Ka hona, litšobotsi tsa 'mele le tsa mochini tsa rabara e hloekisitsoeng ea nitrile li tšoana le tsa rabara ea styrene nitrile, e tlase haholo ho feta rabara ea tlhaho.Kamora ho kenyelletsa li-filler tse matlafatsang tse kang carbon black le phenolic resin, matla a tsitsitseng a rabara e chesitsoeng ea nitrile a ka fihla boemong ba rabara ea tlhaho, hangata e ka bang 24.50mpa.Ha litaba tsa polarity tsa NBR li ntse li eketseha, ho feto-fetoha ha ketane ea macromolecular ho fokotseha, matla a athomo pakeng tsa limolek'hule a eketseha, li-bond tse peli li fokotseha, 'me ketane ea macromolecular ha e na unsaturated, e leng se bakang letoto la liphetoho tsa ts'ebetso.Ha litaba tsa ACN li le lipakeng tsa 35% le 40%, ke ntlha ea bohlokoa bakeng sa deformation ea compression, elasticity, le boima ba 75 ℃.Haeba ho hanyetsa oli ho finyella litlhoko, mefuta e nang le ACN e ka tlaase ho 40% e lokela ho sebelisoa ka hohle kamoo ho ka khonehang.Elasticity ea rabara ea nitrile e nyane ho feta ea rabara ea tlhaho le rabara ea styrene butadiene.Elasticity ea NBR e amana haufi-ufi le mocheso.Ha ho bapisoa le NBR, monyetla oa ho eketseha ha mocheso le elasticity o moholo.Ka hona, rabara ea nitrile e loketse haholo bakeng sa ho etsa li-absorber tse nang le khanyetso e phahameng ea oli.Litšobotsi tsa elasticity ea rabara ea nitrile e fetohang ka ho tlama ha acrylonitrile
3. Ho phefumoloha: Rabara ea Nitrile e na le moea o thata ho feta rabara ea tlhaho le rabara ea styrene butadiene, empa ha e tšoane le rabara ea polysulfide, e tšoanang le rabara ea butyl.
4. Ts'ebetso e tlaase ea mocheso: Rabara ea Nitrile e na le ts'ebetso e mpe ea mocheso o tlaase ka rabara e tloaelehileng.Ts'ebetso e tlase ea mocheso e amana le litaba tsa acrylonitrile, 'me mocheso oa phetoho ea khalase o eketseha ka ho eketseha ha lintho tsa acrylonitrile.E ka fokotsa mocheso oa phetoho ea khalase ea rabara ea nitrile le ho ntlafatsa ts'ebetso ea eona ea mocheso o tlase.
5. Ho hanyetsa mocheso: Rabara ea Nitrile e na le ho hanyetsa mocheso ho feta rabara ea tlhaho le rabara ea styrene butadiene.Ka ho khetha mokhoa o nepahetseng, lihlahisoa tsa rabara tsa nitrile li ka sebelisoa khafetsa ho 120 ℃;E khona ho mamella oli e chesang ho 150 ℃;Kamora ho inela ka oli ka 191 ℃ bakeng sa lihora tse 70, e ntse e na le bokhoni ba ho koba.6. Ho hanyetsa Ozone: Rabara ea Nitrile e na le khanyetso e fokolang ea ozone 'me ka kakaretso e ntlafatsoa ka ho eketsa lisebelisoa tse hanyetsanang le ozone.Leha ho le joalo, lihlahisoa tse kopanang le oli nakong ea tšebeliso li na le tšekamelo ea ho tlosa ozone e hanyetsanang le ho lahleheloa ke matla a ozone.E kopantsoe le PVC, phello e bohlokoa.
7. Ho hanyetsa metsi: Rabara ea Nitrile e na le ho hanyetsa metsi ho molemo.Ha litaba tsa acrylonitrile li phahame, ho molemo ho thibela metsi.
8. Ts'ebetso ea motlakase ea motlakase: Rabara ea Nitrile e na le ts'ebetso e fokolang ea motlakase ka lebaka la polarity ea eona.Ke ea rabara ea semiconductor 'me ha ea lokela ho sebelisoa e le thepa ea ho kenya letsoho.
9. Ho hanyetsa botsofali: NBR ntle le mahlahana a khahlanong le botsofali e na le khanyetso e fokolang haholo ea botsofali, ha NBR e nang le li-anti-aging e na le ho tsofala ho molemo le ho hanyetsa mocheso ho feta rabara ea tlhaho.Kamora botsofali ba oxidative ea mocheso, matla a rabara ea tlhaho a fokotseha haholo, empa ho fokotseha ha rabara ea nitrile ha e le hantle ho nyane haholo.
Ho hanyetsa mocheso oa rabara ea nitrile ho tšoana le ho hanyetsa ha eona ho tsofala.Ha L0000H e le lilemo li 100 ℃, bolelele ba eona bo ntse bo ka feta 100%.Lihlahisoa tsa rabara tsa Nitrile li ka sebelisoa nako e khutšoanyane ho 130 ° C 'me li ka sebelisoa ka mocheso o phahameng ntle le oksijene.Ka hona, rabara ea nitrile e na le ho hanyetsa mocheso ho feta rabara ea tlhaho le rabara ea styrene butadiene.Le ho feta rabara ea chloroprene.Rabara ea Nitrile e na le boemo ba leholimo bo tšoanang le ho hanyetsa ozone joaloka rabara ea tlhaho, empa e le tlase ho feta rabara ea tlhaho.Ho eketsa polyvinyl chloride ho rabara ea nitrile ho ka ntlafatsa ho hanyetsa boemo ba leholimo le ho hanyetsa ozone.
10. Ho hanyetsa mahlaseli:
Rabara ea nitrile e ka boela ea senyeha tlas'a mahlaseli a nyutlelie, e leng se lebisang ho eketseha ha boima le ho fokotseha ha bolelele.Leha ho le joalo, ha e bapisoa le li-rabara tse ling tsa maiketsetso, NBR ha e amehe haholo ke mahlaseli, 'me NBR e nang le acrylonitrile ea 33% -38% e na le ho hanyetsa mahlaseli a kotsi.Kamora mahlaseli a nyutlelie, matla a tsitsipano a NBR a nang le litaba tse phahameng tsa acrylonitrile a ka eketsoa ka 140%.Sena se bakoa ke hore NBR e nang le acrylonitrile e tlase e tla theola tlas'a mahlaseli a kotsi, athe NBR e nang le acrylonitrile e phahameng e tla kopana le mahlaseli a nyutlelie.
Lethathamo la Ts'ebetso ea Rubber ea Nitrile
| kakaretso | sebopeho | morero |
| Copolymer e fumanoang ka lotion polymerization ea butadiene le acrylonitrile e bitsoa rabara ea butadiene acrylonitrile, kapa rabara ea nitrile ka nako e khutšoanyane.Litaba tsa eona ke pontšo ea bohlokoa e amang thepa ea rabara ea nitrile.'Me e tsebahala ka ho hanyetsa oli e ntle haholo. | Ho hanyetsa oli ke eona e ntle ka ho fetisisa, 'me ha e ruruhe ka oli e se nang polar le e fokolang ea polar.Mocheso le ts'ebetso ea botsofali ea oksijene e molemo ho feta ea li-rubber tse tloaelehileng tse kang tlhaho le butadiene styrene. E na le khanyetso e ntle ea ho apara, e nang le khanyetso ea ho apara 30% -45% e phahameng ho feta rabara ea tlhaho. Ho hanyetsa ho bola ha lik'hemik'hale ho molemo ho feta rabara ea tlhaho, empa ho hanyetsa ha eona ho li-acid tse matla tsa oxidizing ho fokola. Elasticity e fokolang, ho hanyetsa serame, ho feto-fetoha ha maemo, ho hanyetsa meokho, le ho hlahisa mocheso o phahameng ka lebaka la ho senyeha. Ts'ebetso e mpe ea ho kenya motlakase, ea rabara ea semiconductor, ha ea lokela ho sebelisoa e le thepa ea ho kenya motlakase. Khanyetso e mpe ea ozone. Ts'ebetso e mpe ea ts'ebetso. | E sebedisetsoa ho etsa liphaephe tsa rabara, lirolara tsa rabara, ligasete tse koalang, litšepe tsa litanka, litšepe tsa mafura a lifofane, le lipokotho tse khōlō tsa oli tse kopanang le oli.E ka etsa mabanta a tsamaisang thepa bakeng sa ho tsamaisa thepa e chesang. |
Lintho tse bonahalang tsa rabara ea maiketsetso e sebelisoang hangata
| Lebitso la rabara | Likgutsufatso | Hardness range (HA) | Thempereichara ea ho sebetsa (℃) |
| Rabara ea nitrile | NBR | 40-95 | - 55 ~ 135 |
| Rabara ea nitrile e nang le haeterole | HNBR | 50-90 | - 55-150 |
| Fluororubber | FKM | 50-95 | - 40-250 |
| Ethylene propylene rabara | EPDM | 40-90 | - 55-150 |
| rabara ea silicon | VMQ | 30-90 | -100~275 |
| Rabara ea fluorosilicone | FVMQ | 45-80 | - 60-232 |
| Rabara ea Chloroprene | CR | 35-90 | -40 ~ 125 |
| Rabara ea polyacrylate | ACM | 45-80 | -25 ~ 175 |
| polyurethane | AU/EU | 65-95 | -80 ~ 100 |
| Rabara ea perfluoroether | FFKM | 75-90 | -25 ~ 320 |
Nako ea poso: Apr-07-2024
