EPDM (ethylene propylene diene monomer) rubber
EPDM rabhais a copolymer ethylene, propylene uye shoma shoma yechitatu monomer non-conjugated diene.Zita repasi rose nderekuti: Ethyiene Propyene Diene Methyiene, kana EPDM muchidimbu.EPDM rabha ine yakanakisaUV kuramba, kuramba kwemamiriro ekunze, kupisa kuchembera, kushomeka kwekushisa, ozone kuramba, makemikari kuramba, kuramba mvura, kunaka kwemagetsi kuvharika uye elasticity., uye zvimwe zvinhu zvemuviri uye zvemagetsi.Izvi zvakanakira hazvigone kutsiviwa nezvimwe zvinhu zvakawanda.
1. Kuramba kwemamiriro ekunzeine simba rekutsungirira kutonhora kwakanyanya, kupisa, kuoma uye kunyorova kwenguva yakareba, uye ine yakanakisa corrosion resistance kurwisana nekukukurwa kwechando nemvura, izvo zvinogona kuwedzera zvachose hupenyu hwebasa hwemagonhi, mahwindo uye madziro emaketeni.
2. Kupisa kuchembera kunopesana kunoreva kuti kune kurwisana kwakasimba kukwegura kwemhepo inopisa.Inogona kushandiswa pa -40 ~ 120 ℃ kwenguva yakareba.Inogona zvakare kuchengetedza inoshanda maitiro kwenguva yakareba pa140 ~ 150 ℃.Inogona kumira kutonhora kwakanyanya kwe230 ~ 260 ℃ munguva pfupi.Inogona kuita basa mukuputika kwekuvaka kwemaguta.Delay effect;pamwe chete nekushandiswa kwefomula yakakosha,EPDM rabhaine manzwiro akafanana kubva -50 ° C kusvika 15 ° C.Iyi yekugadzira saiti yekumisikidza yakagadzira yakakwirira-inoshanda mhedzisiro.
3. NokutiEPDMine yakanakisa ozone kuramba, inozivikanwawo se "crack-free rubber".Inonyanya kushandiswa muzvivako zvakasiyana-siyana zvemadhorobha zvine maitikiro akasiyana emuchadenga uye anonyatso kuratidzwa kumhepo.Icharatidzawo hukuru hwayo hwechigadzirwa.
4. Kurwisana nemirairo ye ultraviolet inopa kuchengetedzwa kwezvakatipoteredza kune vashandisi vezvivakwa zvepamusoro-soro;inogona kumirisana ne60 kusvika 150Kv voltage, uye ine yakanakisa corona resistance, yemagetsi crack resistance, uye arc resistance.Yakadzika tembiricha elasticity, tembiricha kana tensile kugona kusvika 100MPa iri -58.8 ℃.
5. Nekuda kwehunyanzvi hwayo hwekugadzira michina, inowanzoshandiswa mukugadzira ndege, mota, zvitima, mabhazi, ngarava, yakakwirira uye yakaderera voltage switch makabati, girazi keteni madziro, aluminium alloy thermal insulation sealing parts uye diving products, high-pressure steam nyoro Mapaipi, tunnels, viaduct joints uye zvimwe zvisingapindi mvura zvikamu uye zvimwe zvemaindasitiri uye zvekurima zvekuisa chisimbiso zvikamu.
Main yakakosha zvivakwa uye technical parameters
Dense rabha chikamu Sponge rabha chikamu
Inoshanda tembiricha -40～140℃ -35～150℃
Kuoma 50～80℃ 10～30℃
Kuoma kwesimba (&) ≥10 -
Elongation panguva yekuzorora(&) 200～600% 200～400%
Kudzvanya kwakaiswa maawa makumi maviri nemana 70(≯) 35% 40%
Density 1.2 ~ 1.35 0.3 ~ 0.8
1. Pamusana pezvakanakira maitiro ezvimiro zvesilicone rabha, inokwanisa kuchengetedza kugadzikana kwakanaka mukati meimwe nguva yenguva uye imwe tembiricha yemhando.Kuenzaniswa nemamwe madhizaini ekugadzira, silicone rabha inokwanisa kumirisana ne-ultra-temperature ranges ye -101 kusvika 316 ° C uye inochengetedza hunhu hwayo hwekushushikana.
2. Zvimwe zvakasiyana zveiyi elastomer yepasirese:Kuramba kwemwaranzi, kushomeka kwemaitiro ekuita disinfection dose;vibration resistance, inenge nguva dzose yekufambisa chiyero uye resonance frequency pa -50 ~ 65 ° C;nani kufema kupfuura mamwe mapolima Property;dielectric simba 500V · km-1;chiyero chekufambisa <0.1-15Ω·cm;kusunungura kana kuchengetedza kunamatira;ablation tembiricha 4982°C;kupera zvishoma mushure mekusanganiswa kwakakodzera;yakanakira kushandiswa pasi pemitemo yekudzora chikafu Kuzadza chikafu;flame retardant properties;zvigadzirwa zvisina ruvara uye zvisinganhuhwi zvinogona kugadzirwa;mvura isina mvura;physiological inertness yehupfu hushanu uye kudyara kwezvokurapa.
3. Silicone rabhainogona kugadzirwa kuita zvigadzirwa zvemavara akasiyana zvinoenderana nezvinodiwa nevatengi uye nehunyanzvi zvinodiwa.
Huwandu hwezvinhu zvemuviri Index
Kuomarara kwe10～90
Tensile simba/MPa inosvika 9.65
Elongation/% 100～1200
Simba rekubvarura (DkB)/(kN·m﹣¹) Max.122
Bashaud elastometer 10～70
Kudzvinyirira zvachose deformation 5% (yedzo mamiriro 180oC, 22H)
Tembiricha renji/℃ -101～316
3. TPV/TPE thermoplastic elastomer
Thermoplastic elastomer ine zvemuviri uye zvemuchina zvimiro zverabha ine vulcanized uye processability yemapurasitiki akapfava.Pane imwe nzvimbo pakati pepurasitiki nerabha.Mukutaura kwekugadzirisa, imhando yepurasitiki;maererano nezvinhu, imhando yerabha.Thermoplastic elastomers ane zvakawanda zvakanaka pamusoro thermoset rubbers.
1. Iyo yakaderera density ye thermoplastic elastomer(0.9 ~ 1.1g/cm3), nokudaro kuchengetedza mari.
2.Lower compression deformationuye yakanakisa kukotama kuneta kuramba.
3. Inogona kugadzirwa ne thermally welded kuti ivandudze kushanduka kwegungano uye kuisa chisimbiso.
4. Zvinhu zvakaraswa (kupukunyuka maburrs, extrusion tsvina zvinhu) uye zvigadzirwa zvekupedzisira zvinogadzirwa panguva yekugadzirwa zvinogona kudzorerwa zvakananga kuti zvishandiswezve, kuderedza kusvibiswa kwezvakatipoteredza uye kuwedzera zviwanikwa zvekugadzirisa zvakare.Icho chinhu chakanakira girini uye zvakatipoteredza zvine hushamwari zvinhu.
Nguva yekutumira: Oct-31-2023