Rabha imhando yezvinhu zvepolymer zvinopfava zvakanyanya, zvichishandiswa nesimba diki rekunze, zvinogona kuratidza kushata kwakanyanya, uye mushure mekunge simba rekunze rabviswa, rinogona kudzokera kuchimiro charo chepakutanga. Nekuda kwekupfava kwakanyanya kwerabha, rinoshandiswa zvakanyanya mu cushioning, shockproof, dynamic sealing, nezvimwewo. Kushandiswa muindasitiri yekudhinda kunosanganisira maroller erabha akasiyana-siyana uye magumbeze ekudhinda. Nekufambira mberi kweindasitiri yerabha, zvigadzirwa zverabha zvakatanga kubva pakushandiswa kamwe chete kwerabha yechisikigo kusvika kune akasiyana-siyana emarubha ekugadzira.
1. Rabha yechisikigo
Rabha yechisikigo inotongwa nemahydrocarbon erabha (polyisoprene), ane mapuroteni mashoma, mvura, resin acids, shuga nemunyu usingashandiswi. Rabha yechisikigo ine kusimba kukuru, simba guru rekudhonza, inodzivirira kubvaruka uye inodzivirira magetsi, inodzivirira kupera uye inodzivirira kusanaya kwemvura, inodzivirira kugayiwa, rabha yechisikigo iri nyore kubatana nezvimwe zvinhu, uye mashandiro ayo ese ari nani pane rabha yekugadzirwa. Zvikanganiso zverabha yechisikigo inodzivirira kusanaya kweokisijeni neozone, iri nyore kukwegura uye kuora; inodzivirira kusanaya kwemafuta nezvinyungudutsa, inodzivirira kusanaya kweasidhi nealkali, inodzivirira kusanaya kwengura; inodzivirira kupisa zvishoma. Rabha yechisikigo inoshanduka kushanda: inenge -60℃~+80℃Rabha yechisikigo inoshandiswa kugadzira matayi, shangu dzerabha, mapombi, matepi, machira ekudzivirira kupisa uye sheaths dzewaya netambo, nezvimwe zvigadzirwa zvakajairika. Rabha yechisikigo inonyanya kukodzera kugadzirwa kwezvinhu zvinobvisa simba zvinotenderera, zvinobata injini, zvinotsigira muchina, zvinhu zvinomisa rabha nesimbi, diaphragms, uye zvigadzirwa zvakaumbwa.
2. SBR
SBR imhando ye "copolymer" ye "butadiene" ne "styrene". Kushanda kwe "styrene-butadiene rabha" kwakafanana ne "natural rabber", uye parizvino ndiyo rabha yakagadzirwa zvakanyanya. Hunhu hwe "styrene-butadiene rabha" ndehwekuti "resistance" yayo yekusakara, "resistance" yekukwegura uye "resistance" yekupisa inodarika rabha yechisikigo, uye magadzirirwo ayo akafanana kupfuura rabha yechisikigo. Zvakaipa zve "styrene-butadiene rabha" ndeizvi: "less elasticity", "resistance" isina kunaka uye "resistance" yekutsemuka; "resistance" isina kunaka yekugadzirisa, kunyanya "resistance" isina kunaka uye "green rabber" isina simba. "Standard" ye "styrene-butadiene rabber" tembiricha: inenge -50℃~+100℃Rabha yeStyrene butadiene inonyanya kushandiswa kutsiva rabha yechisikigo kugadzira matayi, machira erabha, mapombi, shangu dzerabha nezvimwe zvigadzirwa zvakajairika.
3. Rabha yeNitrile
Rubha reNitrile imhando yebutadiene neacrylonitrile. Rubha reNitrile rinozivikanwa nekusagona kwaro kuoiri yepeturu nealiphatic hydrocarbon, richiteverwa nerubha repolysulfide, acrylic ester nefluorine, nepo rubha reNitrile riri nani pane mamwe marubha anoshanda zvakanyanya. Kusagona kupisa zvakanaka, kusasimba kwemhepo zvakanaka, kusakara uye kusashanda kwemvura, uye kunamira kwakasimba. Zvakaipa zverubha reNitrile ndezvekusagona kutonhora zvakanaka uye kusagona ozone, simba shoma uye kusasimba, kusagona acid zvakanaka, kusadzivirira magetsi zvakanaka, uye kusagona kumisa polar solvents. Tembiricha yerubha reNitrile: inenge -30℃~+100℃Rabha yeNitrile inonyanya kushandiswa kugadzira zvinhu zvakasiyana-siyana zvisingapindi mafuta, zvakaita semapombi, zvigadzirwa zvekuvhara, maroller erabha, nezvimwewo.
4. Rabha ye nitrile ine hydrogenated
Rabha yenitrile yakasanganiswa nehydrogen imhando yebutadiene neacrylonitrile. Rabha yenitrile yakasanganiswa nehydrogen inowanikwa nekuita kuti hydrogen isanganiswe zvizere kana kuti zvishoma nehydrogenation yemabhandi maviri ari mubutadiene yeNBR. Rabha yenitrile yakasanganiswa nehydrogenation inoratidzwa nesimba guru remuchina uye kuramba kukwesha, kuramba kupisa kuri nani pane NBR kana yakabatana neperoxide, uye zvimwe zvinhu zvakafanana nerabha yenitrile. Dambudziko rerabha yenitrile yakasanganiswa nehydrogenation mutengo wayo wakakwira. Tembiricha yerabha yenitrile yakasanganiswa nehydrogenation: inenge -30℃~+150℃Rabha yenitrile ine hydrogen inonyanya kushandiswa pakugadzira zvinhu zvinodzivirira mafuta uye zvinodzivirira kupisa kwakanyanya.
5. Rabha yeEthylene propylene
Rabha reEthylene propylene irabha re copolymer rine ethylene nepropylene, uye rinowanzo kamurwa kuita rabha re yuan ethylene propylene maviri uye rabha re yuan ethylene propylene matatu. Rabha reEthylene-propylene rinoratidzwa nekugona kudzivirira ozone, kuramba ultraviolet, kuramba mamiriro ekunze uye kuramba kukwegura, riri pekutanga pakati pemarabha anoshandiswa zvakanyanya. Rabha reEthylene-propylene rine insulation yakanaka yemagetsi, kuramba makemikari, kusimba kwemhedzisiro, kuramba acid ne alkali, simba rakaderera, uye rinogona kushandiswa kuzadza zvakanyanya. Kugona kupisa kunogona kusvika 150°C, uye inodzivirira solvents dzepolar - ma ketone, ma esters, nezvimwewo, asi rabha ye ethylene propylene haidzivirire hydrocarbons ne aromatic hydrocarbons. Humwe hunhu hwe ethylene propylene rabha hwakaderera zvishoma pane rabha yechisikigo uye hwakanyanya kupfuura rabha ye styrene butadiene. Dambudziko re rabha ye ethylene-propylene nderekuti haina kuzvinamatira zvakanaka uye inobatana, uye haisi nyore kubatanidza. Tembiricha ye rabha ye ethylene propylene: inenge -50℃~+150℃Rabha reEthylene-propylene rinonyanya kushandiswa sejira rekushandisa makemikari, waya netambo, jira remhepo, bhandi rekutakura zvinhu rinodzivirira kupisa, zvigadzirwa zverabha zvemotokari nezvimwe zvigadzirwa zvemaindasitiri.
6. Rabha resilicone
Rabha reSilicone irabha rakakosha rine maatomu esilicon neokisijeni muketani huru. Chinhu chesilicon chinoita basa guru murabha resilicone. Hunhu hukuru hwerabha reSilicone zvese ndezvekudzivirira kupisa kwakanyanya (kusvika ku300 degrees).°C) uye kudzivirira tembiricha yakaderera (yakaderera -100°C). Parizvino ndiyo rabha yakanakisisa inodzivirira kupisa kwakanyanya; panguva imwe chete, rabha yesilicone ine insulation yakanaka yemagetsi uye inogara yakagadzikana nekupisa uye ozone. Inodzivirira zvakanyanya uye haina makemikari. Zvakaipa zverabha yesilicone isimba shoma remuchina, kusagadzikana kwemafuta, kuramba solvent, kuramba acid nealkali, kuoma kusanganisa, uye kunodhura zvakanyanya. Tembiricha yekushanda kwerabha yesilicone: -60℃~+200℃Rabha reSilicone rinonyanya kushandiswa kugadzira zvinhu zvinodzivirira kupisa kwakanyanya uye kwakaderera (mahombi, zvisimbiso, nezvimwewo), uye zvinodzivirira waya netambo zvakanyanya kupisa. Nekuti harina chepfu uye harina kunaka, rabha reSilicone rinoshandiswawo mumaindasitiri ezvekudya nekurapa.
7. Rabha yepolyurethane
Rabha yepolyurethane ine elastomer inoumbwa nekuumbwa kwepolyester (kana polyether) uye diisocyanate compounds. Rabha yepolyurethane inoratidzwa nekusagona kukwesha, iyo iri nani pane mamwe marudzi ese erabha; rabha yepolyurethane ine simba rakakwirira, kusachinjika kwakanaka uye kusagona kukwesha mafuta zvakanaka. Rabha yepolyurethane inokwanisawo kudzivirira ozone, kusagona kukwegura, uye kusasimba kwemhepo. Zvakaipa zverabha yepolyurethane kusagona kukwesha tembiricha, kusagona kukwesha mvura nealkali, uye kusagona kukwesha aromatic hydrocarbons, chlorinated hydrocarbons, uye solvents dzakadai seketones, esters, uye alcohols. Rudzi rwekupisa rwerabha yepolyurethane: inenge -30℃~+80℃Rabha yepolyurethane inoshandiswa kugadzira matai ari pedyo nezvikamu, magasket, zvigadzirwa zvisingatsvedze, maroller erabha, uye zvigadzirwa zverabha zvisingatsvedzeri, zvine simba guru uye zvisingatsvedzi mafuta.
Nguva yekutumira: Chikunguru-07-2021
