Rabara ea maiketsetso ke e 'ngoe ea lisebelisoa tse tharo tse kholo tsa maiketsetso' me e sebelisoa haholo likarolong tse sa tšoaneng tsa indasteri, tšireletso ea naha, lipalangoang le bophelo ba letsatsi le letsatsi.Rabara ea maiketsetso e sebetsang hantle le e sebetsang ke sesebelisoa sa mantlha se tsoetseng pele se hlokahalang bakeng sa nts'etsopele ea mehla e mecha, hape ke mohloli oa bohlokoa oa leano bakeng sa naha.
Lisebelisoa tse khethehileng tsa rabara tsa maiketsetso li bua ka thepa ea rabara e fapaneng le thepa ea rabara e akaretsang 'me e na le thepa e khethehileng e kang ho hanyetsa mocheso o phahameng le o tlase, ho hanyetsa botsofali, ho hanyetsa ho tlosoa ha lik'hemik'hale, haholo-holo hydrogenated nitrile rabara (HNBR), thermoplastic vulcanizate (TPV) , Rabara ea silicone, rabara ea fluorine, rabara ea fluorosilicone, rabara ea acrylate, joalo-joalo Ka lebaka la thepa ea eona e khethehileng, lisebelisoa tse khethehileng tsa rabara li fetohile lisebelisoa tsa bohlokoa bakeng sa nts'etsopele ea maano a maholo a naha le masimo a ntseng a hlaha a kang sefofane, tšireletso ea naha le indasteri ea sesole, tlhahisoleseding ea elektroniki, matla, tikoloho, le maoatle.
1. Rabara ea nitrile e nang le haeterole (HNBR)
Hydrogenated nitrile rabara ke thepa ea rabara e tletseng haholo e fumanoang ka ho khetha hydrogenating likarolo tsa butadiene holim'a ketane ea rabara ea nitrile ka sepheo sa ho ntlafatsa ho hanyetsa mocheso le ho tsofala ha rabara ea nitrile butadiene (NBR)., tšobotsi ea eona e ka sehloohong ke hore e ka sebelisoa nako e telele ho 150 ℃, 'me e ntse e ka boloka thepa e phahameng ea' mele le ea mechine mocheso o phahameng, o ka finyellang litlhoko tse khethehileng tsa ho hanyetsa mocheso o phahameng le lik'hemik'hale tsa lik'hemik'hale tsa thepa koloing. , sebaka sa sefofane, sebaka sa oli le masimo a mang.Litlhokahalo, tse sebelisoang haholo ho feta, joalo ka litiiso tsa oli ea likoloi, likarolo tsa sistimi ea mafura, mabanta a phetiso ea likoloi, mabokose a ho cheka le lipiston bakeng sa seretse, lirolara tsa rabara tsa khatiso le masela, litiiso tsa sefofane, lisebelisoa tsa ho monya, jj.
2. Thermoplastic Vulcanisate (TPV)
Thermoplastic vulcanizates, e khutsufalitsoeng e le TPVs, ke sehlopha se ikhethileng sa li-elastomer tsa thermoplastic tse hlahisoang ke "dynamic vulcanization" ea motsoako o sa bonahaleng oa thermoplastics le elastomers, ke hore, khetho ea karolo ea elastomer nakong ea ho qhibiliha ho tsoakana le thermoplastic cross-linking ea thobalano.Ka nako e le 'ngoe vulcanization ea karolo ea rabara ka pel'a motsoako oa crosslinking (mohlomong li-peroxides, diamines, sulfur accelerators, joalo-joalo) nakong ea ho qhibiliha ho kopanya le thermoplastics ho fella ka vulcanizate e tsoelang pele ea thermoplastic matrix e entsoeng ka lekhalo le qhalakaneng la rabara. vulcanization e lebisa ho eketseha ha viscosity ea rabara, e khothalletsang ho fetoha ha mekhahlelo le ho fana ka morpholoji ea multiphase ho TPV.TPV e na le ts'ebetso e ts'oanang le rabara ea thermosetting le lebelo la ts'ebetso ea thermoplastics, tse bonts'itsoeng haholo ka tekanyo e phahameng ea ts'ebetso / theko, moralo o feto-fetohang, boima bo bobebe, mefuta e mengata ea mocheso o sebetsang, ts'ebetso e bonolo, boleng ba sehlahisoa le botsitso ba sebopeho. e sebelisoang likarolong tsa likoloi, kaho ea motlakase, litiiso le masimo a mang.
3. Rabara ea silicone
Rabara ea silicone ke mofuta o ikhethileng oa rabara ea maiketsetso e entsoeng ka polysiloxane e nang le linear e kopantsoeng le li-filler tse matlafatsang, li-filler tse sebetsang le li-additives, 'me e fetoha elastomer e kang marang-rang ka mor'a ho senyeha tlas'a maemo a futhumatsang le khatello.E na le khanyetso e ntle ea mocheso o phahameng le o tlase, khanyetso ea boemo ba leholimo, khanyetso ea ozone, ho hanyetsa arc, ho kenya motlakase, ho hanyetsa mongobo, ho kenella ha moea o phahameng le inertia ea fisioloji.E na le mefuta e mengata ea lits'ebetso indastering ea sejoale-joale, ea elektroniki le ea motlakase, ea likoloi, ea kaho, ea bongaka, ea tlhokomelo ea motho le likarolo tse ling, 'me e fetohile lisebelisoa tsa bohlokoa tse tsoetseng pele tse sebetsang hantle sebakeng sa sefofane, indasteri ea ts'ireletso le sesole, tlhahiso e bohlale le likarolo tse ling. .
4. Rabara ea Fluorine
Fluorine rabara e bolela thepa ea rabara e nang le fluorine e nang le liathomo tsa fluorine holim'a liathomo tsa carbon tsa ketane e kholo kapa liketane tse ka mahlakoreng.Thepa ea eona e khethehileng e khethoa ke litšobotsi tsa sebopeho sa liathomo tsa fluorine.Rabara ea Fluorine e ka sebelisoa ho 250 ° C nako e telele, 'me mocheso o phahameng oa tšebeletso o ka fihla ho 300 ° C, ha mocheso oa moeli oa tšebeletso oa EPDM le rabara ea butyl e le 150 ° C feela.Ntle le ho hanyetsa mocheso o phahameng, fluororubber e na le khanyetso e ntle ea oli, khanyetso ea lik'hemik'hale, acid le alkali resistance, 'me ts'ebetso ea eona e pharaletseng ke eona e ntle ka ho fetisisa har'a lisebelisoa tsohle tsa rabara elastomer.E sebelisoa haholo bakeng sa ho hanyetsa oli ea lirokete, limisaele, lifofane, likepe, likoloi le likoloi tse ling.Libaka tse nang le merero e khethehileng tse kang ho koala le liphaephe tse hananang le oli ke lisebelisoa tsa bohlokoa bakeng sa moruo oa naha le liindasteri tsa tšireletso ea naha le tsa sesole.
5. Acrylate rabara (ACM)
Acrylate rabara (ACM) ke elastomer e fumanoang ka copolymerization ea acrylate e le monoma e ka sehloohong.Ketane ea eona e ka sehloohong ke ketane ea khabone e tletseng, 'me lihlopha tsa eona tse ka thōko ke lihlopha tsa polar ester.Ka lebaka la sebopeho sa eona se khethehileng, e na le litšobotsi tse ngata tse babatsehang, tse kang ho hanyetsa mocheso, ho tsofala ha botsofali, ho hanyetsa oli, ho hanyetsa ozone, ho hanyetsa UV, joalo-joalo, thepa ea eona ea mechine le thepa ea ho sebetsa e molemo ho feta rabara ea fluororubber le silicone, le ho hanyetsa mocheso oa eona. , ho hanyetsa botsofali le ho hanyetsa oli li ntle haholo.ka rabara ea nitrile.ACM e sebelisoa haholo libakeng tse fapaneng tsa mocheso o phahameng le o hananang le oli, 'me e fetohile thepa ea ho tiisa e ntlafalitsoeng le ho khothaletsoa ke indasteri ea likoloi lilemong tsa morao tjena.
Nako ea poso: Sep-27-2022