Rubha imhando yepamusoro elastic polymer zvinhu, pasi pekuita kwesimba diki rekunze, inogona kuratidza yakakwira dhigirii yekuremara, uye mushure mekunge simba rekunze rabviswa, rinogona kudzokera kuchimiro chayo chepakutanga.Nekuda kwekukwirira kwerubha, inoshandiswa zvakanyanya mu cushioning, shockproof, dynamic sealing, etc. Chishandiso muindasitiri yekudhinda chinosanganisira magumbeze akasiyana erubha uye magumbeze ekudhinda.Nekufambira mberi kweindasitiri yerabha, zvigadzirwa zverabha zvakagadziridzwa kubva pakushandiswa kumwe kwerabha yechisikigo kuenda kune akasiyana ekugadzira marabha.
1. Rabha yakasikwa
Rabha rechisikigo rinotongwa nerabha hydrocarbons (polyisoprene), ine chidimbu chidiki cheprotein, mvura, resin acids, shuga uye inorganic munyu.Rabha yechisikigo ine elasticity yakakura, kusimba kwakasimba, kuramba kubvarura kwakanakisa uye kuvharwa kwemagetsi, kupfeka kwakanaka kusamira uye kusanaya kwemvura, kugadzirika kwakanaka, rabha yechisikigo iri nyore kusunga nezvimwe zvinhu, uye kuita kwayo kwese kuri nani pane rabha yakawanda yekugadzira.Kukanganisa kwerabha yechisikigo kusapikisa kupikisa oksijeni uye ozone, nyore kukwegura uye kuora;kushomeka kupikisa kumafuta uye zvinonyungudutsa, kushomeka kushoma kune acid uye alkali, kushomeka kwekushomeka;kushoma kupisa kusagadzikana.Iyo tembiricha yekushanda yemhando yerabha: inenge -60℃~+80℃.Rabha yechisikigo inoshandiswa kugadzira matayi, shangu dzerabha, hose, matepi, insulating layer uye masheti ewaya netambo, uye zvimwe zvigadzirwa zvakajairika.Rabha rechisikigo rakanyanya kukodzera kugadzirwa kwe torsional vibration eliminators, injini yekuvhundutsa inomisikidza, zvitsigiro zvemuchina, rubber-metal suspension elements, diaphragms, uye zvigadzirwa zvakaumbwa.
2. SBR
SBR icopolymer yebutadiene uye styrene.Kuita kwe styrene-butadiene rubber iri padyo neiyo yerabha yechisikigo, uye parizvino ndiyo yakakura kugadzirwa kwegeneral-purpose synthetic rubber.Hunhu hwe styrene-butadiene rubber ndehwekuti kusakara kwayo, kuchembera uye kushorwa kwekushisa kunodarika rabha yechisikigo, uye magadzirirwo ayo akaenzana kupfuura rabha rechisikigo.Izvo zvisingabatsiri zve styrene-butadiene rubber ndezvi: low elasticity, urombo husina kumira uye kuputika kwemisodzi;kusashanda zvakanaka kwekugadzirisa, kunyanya kushomeka kwekuzvinamira uye kuderera kwegirinhi rabha simba.Iyo tembiricha yemhando ye styrene-butadiene rubber: inenge -50℃~+100℃.Styrene butadiene rubber inonyanya kushandiswa kutsiva yakasikwa rabha kugadzira matai, machira erabha, hose, shangu dzerabha uye zvimwe zvigadzirwa.
3. Nitrile rabha
Nitrile rubber icopolymer yebutadiene uye acrylonitrile.Nitrile rabha inoratidzwa nekupokana kwayo nepeturu uye aliphatic hydrocarbon oiri, yechipiri chete kune polysulfide rabha, acrylic ester uye fluorine rabha, nepo nitrile rabha yakakwirira kune mamwe-general-chinangwa rubber.Kupisa kwakanaka kwekupisa, kusimba kwemhepo kwakanaka, kupfeka kusagadzikana uye kuramba mvura, uye kunamatira kwakasimba.Kuipa kwenitrile rabha kusamira zvakanaka kwechando uye kusagadzikana kweozone, kuderera kwesimba uye kusimba, kusamira zvakanaka kweasidhi, kusamira zvakanaka kwemagetsi, uye kusamira zvakanaka kune zvinonyungudutsa zvinonyungudutsa.Iyo tembiricha yemhando ye nitrile rabha: inenge -30℃~+100℃.Nitrile rabha inonyanya kushandiswa kugadzira zvigadzirwa zvakasiyana-siyana zvinodzivirira mafuta, senge hose, zvigadzirwa zvekuisa chisimbiso, ma roller erabha, nezvimwe.
4. Hydrogenated nitrile rubber
Hydrogenated nitrile rubber icopolymer yebutadiene uye acrylonitrile.Iyo hydrogenated nitrile rabha inowanikwa nekuzara kana zvishoma hydrogenating mabhondi maviri mubutadiene yeNBR.Hydrogenated nitrile rubber inoratidzwa nehupamhi hwemagetsi simba uye abrasion resistance, kupisa kupisa kuri nani pane NBR kana yasanganiswa neperoxide, uye zvimwe zvinhu zvakafanana ne nitrile rabha.Izvo zvakashata zvehydrogenated nitrile rubber mutengo wayo wepamusoro.Iyo tembiricha yemhando yehydrogenated nitrile rubber: inenge -30℃~+150℃.Hydrogenated nitrile rubber inonyanya kushandiswa kugadzira mafuta-inodzivirira uye yakakwirira-yekushisa-inodzivirira kuvharisa zvigadzirwa.
5. Ethylene propylene rubber
Ethylene propylene rabha icopolymer yeethylene uye propylene, uye inowanzokamurwa kuita maviri yuan ethylene propylene rabha uye matatu yuan ethylene propylene rabha.Ethylene-propylene rabha inoratidzirwa neakanakisa ozone kuramba, ultraviolet kuramba, kuramba mamiriro ekunze uye kuramba kuchembera, inomira pekutanga pakati pezvese-chinangwa rubber.Ethylene-propylene rabha ine yakanaka magetsi ekudzivirira, makemikari kuramba, kukanganisa elasticity, asidhi uye alkali kuramba, yakaderera chaiyo giravhiti, uye inogona kushandiswa kuzadza zvakanyanya.Kupisa kwekudzivirira kunogona kusvika ku150°C, uye inoshingirira kune polar solvents-ketones, esters, etc., asi ethylene propylene rabha haidziviriri kune aliphatic hydrocarbons uye anonhuwirira hydrocarbons.Zvimwe zvemuviri uye zvemagetsi ethylene propylene rubber zvakaderera zvishoma kune zvakasikwa rabha uye yepamusoro kune styrene butadiene rubber.Izvo zvakashata zve ethylene-propylene rubber ndeyokuti ine urombo husina kumira uye kunamatira, uye hazvisi nyore kusunga.Iyo tembiricha yemhando ye ethylene propylene rubber: inenge -50℃~+150℃.Ethylene-propylene rabha rinonyanya kushandiswa semakemikari emidziyo lining, waya uye tambo sheathing, chiutsi hose, inodzivirira kupisa bhandi rekutakura, zvigadzirwa zvemotokari rabha uye zvimwe zvigadzirwa zvemaindasitiri.
6. Silicone rabha
Silicone rabha irabha yakakosha ine silicon uye maatomu eokisijeni mucheni huru.Silicon element inoita basa rakakura musilicone rabha.Hunhu hukuru hwesilicone rabha ese ari maviri akakwira tembiricha kuramba (kusvika ku300°C) uye yakaderera tembiricha kuramba (yakaderera -100°C).Parizvino ndiyo yakanakisa tembiricha isingaite rabha;panguva imwecheteyo, silicone rabha ine yakanakisa magetsi ekudzivirira uye yakagadzikana kune thermal oxidation uye ozone.Iyo inopikisa zvakanyanya uye inert yemakemikari.Izvo zvisingabatsiri zvesilicone rabha isimba remagetsi rakaderera, kushomeka kwemafuta, kuramba kwesolvent, acid uye alkali resistance, yakaoma vulcanize, uye inodhura.Silicone rabha kushanda tembiricha: -60℃~+200℃.Silicone rabha inonyanya kushandiswa kugadzira yakakwira uye yakaderera tembiricha zvigadzirwa (hose, zvisimbiso, nezvimwewo), uye yakakwirira tembiricha inodzivirira waya uye tambo yekuvharisa.Nekuti isiri-chepfu uye haina kuravira, silicone rabha inoshandiswawo mumaindasitiri ezvekudya uye ekurapa.
7. Polyurethane rubber
Polyurethane rabha ine elastomer inoumbwa ne polymerization yepolyester (kana polyether) uye diisocyanate makomisheni.Polyurethane rubber inoratidzirwa neakanaka abrasion resistance, iyo ndiyo yakanakisisa pakati pemarudzi ose erubha;polyurethane rubber ine simba rakawanda, elasticity yakanaka uye yakanakisa mafuta kuramba.Polyurethane rabha zvakare yakanakisa mukupokana neozone, kuramba kuchembera, uye kusimba kwemhepo.Kuipa kwepolyurethane rabha kusamira zvakanaka kwekushisa, kusanaya kwemvura uye alkali resistance, uye kusamira zvakanaka kumahydrocarbons anonhuwirira, mahydrocarboni ane chlorinated, uye zvinonyungudutsa zvakaita seketoni, esters, uye madoro.Iko kushandiswa kwekushisa kwemhando ye polyurethane rubber: inenge -30℃~+80℃.Polyurethane rabha inoshandiswa kugadzira matayi ari padyo nezvikamu, magasiketi, zvigadzirwa zvinovhundutsa, ma roller erabha, uye asingapfeki, ane simba guru uye anodzivirira mafuta erabha zvigadzirwa.
Nguva yekutumira: Jul-07-2021