EPDM (ethylene propylene diene monomer) rabara
EPDM rabarake copolymer ea ethylene, propylene le e nyenyane ea boraro monoma non-conjugated diene.Lebitso la machaba ke: Ethyiene Propyene Diene Methyiene, kapa EPDM ka bokhutšoanyane.EPDM rabara e ntle haholoKhanyetso ea UV, ho hanyetsa boemo ba leholimo, ho hanyetsa botsofali ba mocheso, ho hanyetsa mocheso o tlase, ho hanyetsa ozone, khanyetso ea lik'hemik'hale, ho hanyetsa metsi, ho kenya motlakase hantle le elasticity., le litšobotsi tse ling tsa 'mele le mechine.Melemo ena e ke ke ea nkeloa sebaka ke lisebelisoa tse ling tse ngata.
1. Ho hanyetsa boemo ba leholimoe na le matla a ho mamella serame se matla, mocheso, ho omella le mongobo ka nako e telele, 'me e na le khanyetso e ntle ea kutu khahlanong le khoholeho ea lehloa le metsi, e ka atolosang bophelo ba tšebeletso ea mamati, lifensetere le marako ka ho feletseng.
2. Ho hanyetsa botsofali ba mocheso ho bolela hore ho na le khanyetso e matla ea ho tsofala ha moea o chesang.E ka sebelisoa ho -40 ~ 120 ℃ nako e telele.E ka boela ea boloka litšobotsi tse sebetsang nako e telele ho 140 ~ 150 ℃.E khona ho mamella mocheso o phahameng oa 230 ~ 260 ℃ ka nako e khuts'oane.E ka ba le karolo ho phatloheng ha meaho ea litoropong.Phello ea ho lieha;hammoho le tšebeliso ea foromo e khethehileng,EPDM rabarae na le maikutlo a tšoanang ho tloha ho -50°C ho isa ho 15°C.Ts'ebetso ena ea sebaka sa tlhahiso e entse liphetho tse sebetsang hantle.
3. HobaneEPDMe na le khanyetso e ntle ea ozone, e boetse e tsejoa e le "rabara e se nang mapheo".E sebelisoa ka ho khetheha mehahong e fapaneng ea litoropo e nang le li-index tsa sepakapaka tse fapaneng 'me e pepesehile ka ho feletseng moeeng.E tla boela e bontše boleng ba sehlahisoa sa eona.
4. Ho hanyetsa mahlaseli a ultraviolet ho fana ka tšireletso ea tikoloho bakeng sa basebelisi ba mehaho e phahameng;E khona ho mamella voltage ea 60 ho isa ho 150Kv, 'me e na le khanyetso e ntle haholo ea corona, e hanyetsang mapheo a motlakase, le arc resistance.Elasticity e tlase ea mocheso, mocheso ha matla a tensile a fihla ho 100MPa ke -58.8 ℃.
5. Ka lebaka la thepa ea eona e khethehileng e khethehileng ea mechine, e atisa ho sebelisoa ha ho etsoa lifofane, likoloi, literene, libese, likepe, lik'habote tse phahameng le tse tlaase tsa motlakase, marako a likhalase tsa khalase, likarolo tsa ho tiisa lifensetere tsa aluminium alloy thermal insulation le lihlahisoa tsa ho qoela. phahameng-khatello mouoane bonolo Liphaephe, lithanele, manonyeletso viaduct le likarolo tse ling tse thibelang metsi le likarolo tse ling tsa indasteri le temo ho tiisa.
Lintho tse ka sehloohong tse khethehileng le litekanyetso tsa tekheniki
Karolo e teteaneng ea rabara Karolo ea seponche sa rabara
Mocheso o sebetsang -40～140℃ -35～150℃
Boima ba 50℃ 80℃ 10℃ 30℃
Tensile hardness (&) ≥10 -
Elongation nakong ea khefu(&) 200～600% 200～400%
Compression beha lihora tse 24 70(≯) 35% 40%
Boima ba 1.2–1.35 0.3–0.8
1. Ka lebaka la melemo ea litšobotsi tsa sebopeho sarabara ea silicone, e na le bokhoni ba ho boloka botsitso bo botle ka har'a nako e itseng le mocheso o itseng oa mocheso.Ha ho bapisoa le tse ling tse entsoeng ka maiketsetso, rabara ea silicone e khona ho mamella mocheso o phahameng oa mocheso oa -101 ho isa ho 316 ° C le ho boloka thepa ea eona ea khatello ea maikutlo.
2. Lintho tse ling tse ikhethang tsa elastomer ena ea bokahohleng:ho hanyetsa mahlaseli, tšusumetso e fokolang ea tekanyo ea disinfection;khanyetso ea ho thothomela, hoo e batlang e le sekhahla sa phetisetso le maqhubu a resonance ho -50 ~ 65 ° C;phefumoloho e ntle ho feta lipolima tse ling Thepa;matla a dielectric 500V · km-1;sekhahla sa phetiso <0.1-15Ω·cm;lokolla kapa ho boloka ho khomarela;ablation mocheso 4982°C;ho felloa ke matla ho fokolang ka mor'a motsoako o nepahetseng;e loketseng bakeng sa kopo tlas'a melao ea taolo ea lijo Ho tlatsa lijo;thepa e thibelang malakabe;lihlahisoa tse se nang 'mala le tse se nang monko li ka hlahisoa;thepa e sa keneleng metsi;ho se sebetse ha mmele hoa chefo e mehlano le ho kenngoe ka meriana.
3. Rabara ea siliconee ka etsoa lihlahisoa tsa mebala e fapaneng ho latela litlhoko tsa bareki le litlhoko tsa bonono.
Kakaretso ea thepa ea 'mele Index
Boemo ba boima ba 10 ~ 90
Tensile matla/MPa ho fihla ho 9.65
Elongation/% 100～1200
Tear strength (DkB)/(kN·m﹣¹) Max.122
Bashaud elastometer 10～70
Compression deformation e sa feleng 5% (boemo ba tlhahlobo 180oC, 22H)
Sebaka sa mocheso/℃ -101℃316
3. TPV/TPE thermoplastic elastomer
Thermoplastic elastomer e na le thepa ea 'mele le ea mochini ea rabara e senyehileng le ts'ebetso ea lipolasetiki tse bonolo.E kae-kae pakeng tsa polasetiki le rabara.Mabapi le ts'ebetso, ke mofuta oa polasetiki;mabapi le thepa, ke mofuta oa rabara.Thermoplastic elastomer e na le melemo e mengata ho feta liraba tsa thermoset.
1. Boima bo tlase ba thermoplastic elastomer(0.9 ~ 1.1g/cm3), kahoo ho boloka litšenyehelo.
2.Deformation e tlase ea khatellole e babatsehang ba kobang mokhathala ho hanyetsa.
3. E ka tjhesetswa ka thermally ho ntlafatsa ho feto-fetoha ha kopano le ho tiisa.
4. Lisebelisoa tsa litšila (li-burrs tse phonyohang, lisebelisoa tsa litšila tsa extrusion) le lihlahisoa tsa ho qetela tse hlahisoang nakong ea tlhahiso li ka khutlisetsoa ka ho toba bakeng sa ho sebelisoa hape, ho fokotsa tšilafalo ea tikoloho le ho atolosa mehloli ea ho tsosolosa lisebelisoa.Ke ntho e ntle ka ho fetisisa e tala le tikoloho.
Nako ea poso: Oct-31-2023