I-Rubber luhlobo lwezinto eziphezulu ze-polymer elastic, phantsi kwesenzo samandla amancinci angaphandle, inokubonisa izinga eliphezulu lokukhubazeka, kwaye emva kokuba amandla angaphandle asusiwe, angabuyela kwimo yawo yangaphambili.Ngenxa ye-elasticity ephezulu yerabha, isetyenziswa ngokubanzi kwi-cushioning, shockproof, ukutywinwa okuguquguqukayo, njl njl. Ukusetyenziswa kwishishini lokushicilela kubandakanya iirola ezahlukeneyo zerabha kunye neengubo zokuprinta.Ngenkqubela phambili yoshishino lwerabha, iimveliso zerabha ziye zaphuhliswa ukusuka kusetyenziso olulodwa lwerabha yendalo ukuya kwiintlobo ezahlukeneyo zeerubha zokwenziwa.
1. Irabha yendalo
Irabha yendalo ilawulwa yirubber hydrocarbons (polyisoprene), equlethe isixa esincinci seprotheyini, amanzi, i-resin acids, iswekile kunye neetyuwa ezingaphiliyo.Irabha yendalo ino-elasticity enkulu, ukomelela okuphezulu, ukuxhathisa kokukrazula kunye nokufakelwa kombane, ukumelana nokunxiba kakuhle kunye nokumelana nembalela, ukuqhubekeka kakuhle, irabha yendalo kulula ukuyidibanisa nezinye izinto, kwaye ukusebenza kwayo kukonke kubhetele kunerabha yokwenziwa kwezinto.Ukungaphumeleli kwerabha yendalo kukuxhathisa i-oksijini kunye ne-ozone, kulula ukuguga kunye nokuwohloka;ukumelana kakubi kweoli kunye ne-solvents, ukuchasana okuphantsi kwe-asidi kunye ne-alkali, ukunyanzeliswa kwe-corrosion ephantsi;ukumelana nobushushu obuphantsi.Uluhlu lweqondo lokushisa lokusebenza lwerubha yendalo: malunga -60℃~+80℃.Irabha yendalo isetyenziselwa ukwenza amatayara, izihlangu zerabha, imibhobho, iiteyiphu, iileya zokugquma kunye neeshethi zeengcingo kunye neentambo, kunye nezinye iimveliso eziqhelekileyo.Irabha yendalo ifaneleke ngokukodwa ukuveliswa kwezixhobo zokususa i-torsional vibration eliminators, i-injini yokufunxa ukothuka, izixhaso zoomatshini, izinto zokuxhoma zerabha-zentsimbi, iidiaphragms, kunye neemveliso ezibunjiweyo.
2. SBR
I-SBR yi-copolymer ye-butadiene kunye ne-styrene.Ukusebenza kwerabha ye-styrene-butadiene isondele kuleyo yerubha yendalo, kwaye okwangoku iyona mveliso inkulu yerabha yokwenziwa kwenjongo jikelele.Iimpawu zerubha ye-styrene-butadiene kukuba ukumelana nokuguga, ukumelana nokuguga kunye nokushisa ukushisa kudlula irabha yendalo, kwaye ukuthungwa kwayo kufana kakhulu kunerubha yendalo.Ukungalungi kwerabha ye-styrene-butadiene zezi: i-elasticity ephantsi, ukunganyangeki kakuhle kwe-flex kunye nokumelana nokukrazula;ukusebenza kakubi, ngakumbi ukuncamathela okungekuhle kunye namandla erabha eluhlaza.Uluhlu lweqondo lokushisa lerabha ye-styrene-butadiene: malunga -50℃~+100℃.Irabha ye-styrene butadiene isetyenziswa ikakhulu endaweni yerabha yendalo ukwenza amatayara, amashiti erabha, imibhobho, izihlangu zerabha kunye nezinye iimveliso jikelele.
3. Irabha ye-Nitrile
Irabha yeNitrile yicopolymer yebutadiene kunye neacrylonitrile.Irabha ye-Nitrile ibonakala ngokuxhathisa kwayo kwipetroli kunye ne-aliphatic hydrocarbon oyile, okwesibini kuphela kwirabha ye-polysulfide, i-acrylic ester kunye nerubha ene-fluorine, ngelixa irabha ye-nitrile ingaphezulu kwezinye iirubha ezisetyenziselwa injongo jikelele.Ukumelana nobushushu obuhle, ukuxinana komoya okulungileyo, ukuxhathisa ukunxiba kunye nokumelana namanzi, kunye nokubambelela okuqinileyo.Izinto ezingeloncedo ngerabha ye-nitrile kukunganyangeki kakuhle kwengqele kunye nokumelana ne-ozone, ukomelela okuphantsi kunye nokunwebeka, ukunganyangeki kweasidi, ukugqunywa kombane okungenamandla, kunye nokunganyangeki kakuhle kwizinyibiliki ezimhlophe.Uluhlu lweqondo lokushisa lerabha ye-nitrile: malunga -30℃~+100℃.Irabha ye-Nitrile isetyenziswa ikakhulu ukwenza iimveliso ezahlukeneyo ezinganyangekiyo kwi-oyile, njengemibhobho, iimveliso zokutywina, iirola zerabha, njl.
4. Irabha ye-nitrile ene-hydrogen
Irabha ye-nitrile ene-Hydrogenated yi-copolymer ye-butadiene kunye ne-acrylonitrile.Irabha ye-nitrile ye-hydrogenated ifunyenwe ngokugcwala okanye ngokuyinxenye i-hydrogenating ibhondi ephindwe kabini kwi-butadiene ye-NBR.Irabha ye-nitrile ene-Hydrogenated ibonakaliswe ngamandla omatshini aphezulu kunye nokuxhathisa kwe-abrasion, ukumelana nobushushu kungcono kune-NBR xa idibene neperoxide, kunye nezinye iimpawu ziyafana nerabha ye-nitrile.Ukungalungi kwerabha ye-nitrile ye-hydrogenated lixabiso layo eliphezulu.Uluhlu lweqondo lokushisa lwerabha ye-nitrile ye-hydrogenated: malunga -30℃~+150℃.Irabha ye-nitrile ene-Hydrogenated isetyenziswa ikakhulu kwiimveliso zokutywinwa kweoyile kunye nobushushu obuphezulu.
5. Irabha ye-ethylene propylene
Irabha ye-ethylene propylene yi-copolymer ye-ethylene kunye ne-propylene, kwaye ngokuqhelekileyo yohlulwe ibe yirabha yeeyuan ezimbini ze-ethylene propylene kunye nee-yuan ezintathu ze-ethylene propylene irabha.Irabha ye-ethylene-propylene ibonakaliswe ngokugqwesa kwe-ozone, ukumelana ne-ultraviolet, ukuxhathisa kwemozulu kunye nokumelana nokuguga, ukubeka kwindawo yokuqala phakathi kweerubha zenjongo jikelele.Irabha ye-ethylene-propylene ine-insulation efanelekileyo yombane, ukuchasana kweekhemikhali, impembelelo ye-elasticity, i-asidi kunye nokumelana ne-alkali, ubunzima obuphantsi obuthile, kwaye ingasetyenziselwa ukuzaliswa okuphezulu.Ukumelana nobushushu kunokufikelela kwi-150°C, kwaye iyaxhathisa kwi-polar solvents-ketones, esters, njl., kodwa irabha ye-ethylene propylene ayixhathisi kwi-aliphatic hydrocarbons kunye ne-aromatics hydrocarbons.Ezinye iipropathi zomzimba kunye nezomatshini zerabha ye-ethylene propylene ingaphantsi kancinci kwirabha yendalo kwaye iphezulu kunerabha ye-styrene butadiene.Ukungalungi kwerabha ye-ethylene-propylene kukuba i-self-adhesion engalunganga kunye nokubambelela ngokulinganayo, kwaye akulula ukuyidibanisa.Uluhlu lweqondo lokushisa lwe-ethylene propylene rubber: malunga -50℃~+150℃.Irabha ye-ethylene-propylene isetyenziswa kakhulu njengesixhobo sekhemikhali sokufakwa, intambo kunye nentambo yokucheba, ithumbu lomphunga, ibhanti lokuhambisa elikwaziyo ukumelana nobushushu, iimveliso zerabha zemoto kunye nezinye iimveliso zamashishini.
6. Irabha yeSilicone
Irabha ye-Silicone yirabha ekhethekileyo ene-silicon kunye neeathom ze-oxygen kwikhonkco eliphambili.I-Silicon element idlala indima enkulu kwirabha ye-silicone.Iimpawu eziphambili zerabha ye-silicone zombini ukumelana nobushushu obuphezulu (ukuya kuma-300°C) kunye nokumelana nobushushu obuphantsi (esezantsi -100°C).Okwangoku iyeyona rabha ekwazi ukumelana nobushushu obuphezulu;kwangaxeshanye, irabha abicah ine-insulation egqwesileyo yombane kwaye izinzile kwi-oxidation ye-thermal kunye ne-ozone.Ixhathisa kakhulu kwaye inert yekhemikhali.Ukungalungi kwerabha ye-silicone amandla aphantsi omatshini, ukunganyangeki kwe-oyile, ukuxhathisa kwe-solvent, i-asidi kunye nokumelana ne-alkali, kunzima ukukhupha, kunye neendleko eziphezulu.Ubushushu bokusebenza kwerabha yeSilicone: -60℃~+200℃.Irabha yeSilicone isetyenziswa ikakhulu ukwenza iimveliso ezikwaziyo ukumelana nobushushu obuphezulu naphantsi (imibhobho, itywina, njl.njl.), kunye nocingo oluxhathisa ubushushu obuphezulu kunye nokugqunywa kwentambo.Ngenxa yokuba ayinayo ityhefu kwaye ayinancasa, irabha ye-silicone ikwasetyenziswa kushishino lokutya kunye nezonyango.
7. Irabha yepolyurethane
Irabha ye-polyurethane ine-elastomer eyenziwe yi-polymerization ye-polyester (okanye i-polyether) kunye ne-disocyanate compounds.Irabha ye-polyurethane ibonakaliswe ngokuchasana kakuhle kwe-abrasion, eyona nto ibhetele kuzo zonke iintlobo zeerubha;Irabha ye-polyurethane inamandla aphezulu, i-elasticity elungileyo kunye nokumelana ne-oyile okugqwesileyo.Irabha yePolyurethane ikwagqwesileyo ekuxhathiseni i-ozone, ukuxhathisa ukwaluphala, kunye nokuqina komoya.Izinto ezingeloncedo zerabha ye-polyurethane kukunganyangeki kobushushu, ukunganyangeki kwamanzi kunye nokunganyangeki kwealkali, kunye nokunganyangeki kakuhle kwiihydrocarbons ezinevumba elimnandi, iihydrocarbon ezikloriniwe, kunye nezinyibilikisi ezifana neeketones, iiester, kunye neealkoholi.Uluhlu lobushushu bokusetyenziswa kwerabha ye-polyurethane: malunga -30℃~+80℃.Irabha yePolyurethane isetyenziselwa ukwenza amatayara asondele kwiindawo, iigaskets, iimveliso ezingothukiyo, iirola zerabha, kunye neemveliso zerabha ezingagugiyo, ezinokuqina okuphezulu kunye ne-oyile ekwaziyo ukumelana ne-oli.
Ixesha lokuposa: Jul-07-2021