Vunyingi bya rhaba ya compression ya mabandhi ya V leyi tolovelekeke ematikweni mambe i miri wa rhaba wa SBR/ntumbuluko na rhaba yin’wana ya chloroprene. Transmission belt i ku tirhisiwa loku cinca-cincaka ka switirhisiwa swa rhaba, fomula yi fanele ku tekela enhlokweni matirhelo ya dynamic cranking, ku tumbuluxiwa ka ku hisa, rhaba yo funengeta yi fanele ku tlhela yi tekiwa tanihi ku lwisana na ku rhurhumela, nhlayo ya rhaba a yi fanelanga ku va ehansi ngopfu. Mabandhi yo fambisa ya xiyimo xa le henhla yo fana na mabandhi ya V-belts, mabandhi ya V-belts ya vurimi, mabandhi ya V lama nga na matlhelo lama tsemiweke, mabandhi ya multiribbed na mabandhi ya synchronous ya tirhisiwa ngopfu eka rhaba ya chloroprene. Chloroprene rubber yina matimba yale henhla, ku lwisana na kuhisa, ku lwisana na ku dyuhala, ku lwisana na ozone, ku lwisana na abrasion, ku karhala kahle ka flexural, na ku namarhela kahle na switirhisiwa swin’wana. Nhlayo ya mahiselo leyi tirhaka hi ntolovelo i -30~100°C. Mabandhi yo tala ya le handle yo hundzisela ma tirhisa rhaba ya chloroprene ya crystallinity ya le hansi ya crystallinity. Leswi landzelaka i swikombiso swa matirhelo ya tigiredi timbirhi ta neoprene leti tirhisiweke eka ndzavisiso lowu .
CR232: Xiendliwa lexi i polymer ya chloroprene leyi nga na diisopropyl dithiocarbonate tani hi mulawuri. Rivilo ra crystallization i ra le xikarhi, density i 1.23, beige lumps, non-poluting. Yina ku tiya kahle ka kuhisa xikan’we naku tiya ka mahiselo yale henhla. Yi nga tirhisiwa eka mixaka hinkwayo ya switirhisiwa swa rhaba swa muvala wo vonikela, swo tanihi swisirhelelo, xifunengeto xa ntshuri, swirhendzevutani, xifunengeto, xirhendzevutana xa le handle xa hose na swiphemu swin’wana swo hambana-hambana swa rhaba. Xiendliwa lexi xifana na DuPont’s W-Type na Nidec’s M-40-type chloroprene rubber.
CR322: Xiendliwa lexi i polymer ya chloroprene leyinga na sulfur na diisopropyl dithiocarbonate tani hi xiaki xo hlanganisa na ku lulamisa. Rivilo ra le xikarhi ra crystallization, density 1.23, beige kumbe swirhumbana swa buraweni, leswi nga thyakisiki. Matimba yale henhla ya mihloti, matirhelo ya processing ya antswa kutlula rhaba leyi lawuriwaka hi sulfur. Yinga tirhisiwa eka ku endliwa ka ti cable sheaths, conveyor belts na swin’wana swa rhaba. Xiendliwa lexi xifana na Dupont GW type rubber.
2.1 Nkucetelo wa tigiredi to hambana na mpimo wa CR eka matirhelo ya vulcanization na mooney viscosity ya V-belt compression rubber.
Hi ku tlakuka ka cr2322 dosage, t 10, t 90 first shorten ivi yi lehisa, leswi swi vangiwa hikuva CR2322 i non-sulfur-conditioned, ZnO, MGO tani hi CR2322 sulfurizing agent dosage leyi nga cinciki, cr2322 dosage yi ringana na relative sulfurizing agent ya cr, so the greater the dosage dosage dosage of equivalen to the relative sulfurizing agent of each cr naswona m hm l a yi cinci ngopfu. Ku engetela kwalaho, loko nhlayo ya CR3222 yi tlakuka, T 10 na T 90 yi komile. Leswi swi vangiwa hileswi CR3222 yi nga muxaka lowu pfanganisiweke na ku lulamisiwa, ZnO, MgO na S swi tirha swin’we tanihi switirhisiwa swa vulcanizing, naswona hikuva CR hi yoxe yi na nkarhi wo koma no hatlisa wa coking ku tlula NR/BR, rivilo ra vulcanization ri hatlisa hi ku tlakuka ka mpimo wa CR3222, naswona M HM L yi engeteriwa hakatsongotsongo. Eku heteleleni, ehansi ka sisiteme ya sweswi ya vulcanization, CR3222 yina nkarhi wo koma wo hisa, mpimo wa vulcanization hiku hatlisa na degree yale henhla ya vulcanization kutlula CR2322.
Viscosity ya Mooney yi tlakuke swinene hiku tlakuka ka cr dosage. CR2322 yi tlakuka ku tlula CR3222 hi ku engeteleka ka CR dosage, kambe CR3222 yikulu loko ku tirhisiwa nhlayo leyi fanaka ya CR.
2.2 Vuyelo bya tigiredi to hambana na mpimo wa CR eka swivumbeko swa nyama na swa michini swa rhaba ya V-belt compression .
Hiku tlakuka ka CR2322 dosage, ku cinca hinkwako ka matimba ya tensile aswiri swa nkoka, ku leha eka break swihunguteka, 100% tensile stress naku tiya swiya swikula. naswona eka 100 °C na ku andzisiwa ka nkarhi wa ku dyuhala, matimba ya tensile, ku leha ka ku handzuka swi hungutekile naswona ku tala ka mpimo wa CR2322, matimba yo tsana, ku leha ka ku handzuka swi hungutekile switsongo; Hi ku engeteriwa ka nkarhi wa ku dyuhala ka 100% constant elongation, ku tiya ku tlakukile, na mpimo wo hambana wa CR2322, 100% constant elongation, ku tiya ku tlakukile hi margin leyintsongo, kambe i yitsongo ku tlula fomula leyi nga riki na CR2322.
Hiku tlakuka ka cr3222 dosage loko yinga dyuhali, matimba ya tensile aya cincanga ngopfu, tensile elongation yihunguteke, 100% constant tensile stress yihunguteke kusungula kutani yi tlakuka, naswona ku tiya aku cincanga ngopfu. na le ka 100 °C ndhawu leyi nga na ku andzisiwa ka nkarhi wa ku dyuhala, matimba ya tensile, ku leha ka ku handzuka ku hungutekile naswona mpimo wo hambana wa CR3222 tensile strength, engaring elongation wu hungutekile hi nhlayo yitsongo, kambe i wutsongo ku tlula fomula leyi nga riki na CR3222; Hi ku engeteriwa ka nkarhi wa ku dyuhala ka 100% fixeil tensile, ku tiya ka engeteleka, naswona mpimo wo hambana wa CR3222 wa 100% fixeil tensile, ku tlakuka ka ku tiya a wu hambananga ngopfu. Ehansi ka nkarhi wo hambana wa ku dyuhala ka nhlayo leyi fanaka ya CR eka 100 °C, mpimo wa ku cinca ka matimba ya ku tsana ka CR3222 i wutsongo ku tlula wa CR2322 na nkarhi wo dyuhala lowu lehisiweke; Mpimo wa ku cinca ka ku leha ka ku handzuka, ku leha ka 100%, na ku tiya ka le ribuweni ra CR3222 na CR2322 a swi hambananga ngopfu na swa CR2322.
Ehansi ka sisiteme ya sweswi ya sulfide, nhundzu ya flexural ya CR2322 yi antswa swinene ku tlula ya CR3222 eka 80 °C, naswona loko nhlayo ya CR2322 yi tlakuka, nhundzu ya kahle ya flexural yi fikeleriwa loko nhlayo ya CR2322 yi ri 20 wa swiphemu, naswona nhundzu ya flexural yi andza loko nhlayo ya CR3222 yi engeteleka.
2.3 Mullins Vuyelo bya tigiredi to hambana na mimpimo ya CR eka V-belt compression adhesives .
Tanihi leswi rhaba ya ntshikelelo yi endliwaka eka ntshikelelo wa ntshikelelo lowu phindha-phindhiwaka hi nkarhi wa ku tirhisiwa ka ntolovelo, naswona mbuyelo wa mullins ehansi ka ntshikelelo wu hlawula ku olova ka ntshikelelo wa rhaba leyi nga na vulcanized ehansi ka ku tshikileriwa loku phindha-phindhiwaka, rhaba ya ntshikelelo yi lava ku va na ku tiya lokunene ehansi ka ntshikelelo wa ku tshikileriwa ka cyclic, naswona ku olova ka ntshikelelo ku fanele ku va lokutsongo ka mullins, leswaku ku olova ka ku tshikileriwa ka rhaba. Mahiselo ya ntolovelo ya ti V-belts leti tolovelekeke i kwalomu ka 80 °C, kutani leswaku ku tekeleriwa ku tirhisiwa ka ntolovelo ka xinamarheti xa compression, mullins effect eka 80 °C yi kamberiwile ku kombisa ku tirhisiwa ka xiviri ka xiyimo.
Hiku tlakuka ka nhlayo ya CR2322, matimba yale henhla ya compression ya tlakuka emahlweni nale ndzhaku ka 100°C×24h aging. Loko nhlayo ya CR2322 leyi tirhisiwaka yi fana, matimba ya ntshikelelo wa le henhla ya tlakuka swinene endzhaku ka 100 °C × 24 h ku dyuhala. Tanihi leswi ku hambana kutsongo exikarhi ka matimba yo sungula na ya vunharhu ya ku tshikileriwa ku kombisaka leswaku mbuyelo wa mullins wu tsanile, vuyelo bya Mullins byi le rivaleni leswaku byi tsanile hi ku tlakuka ka nhlayo ya CR2322, naswona vuyelo bya Mullins bya ha tsanile hi ku tlakuka ka nhlayo ya CR2322 endzhaku ka ku dyuhala eka 100 °C × 24 h. Kambe loko ku pimanyisiwa na sweswo loko kungase dyuhala, nhlayo yale henhla ya matimba ya compression yikula emahlweni nale ndzhaku ka ku dyuhala. Hambiswiritano, loko ku pimanyisiwa na sweswo loko kungase dyuhala, degree ya mullins effect yi tlakuke endzhaku ka 100 °C × 24 h aging, naswona degree ya mullins effect yi tlakuke yihunguteke hiku tlakuka ka cr2322 dosage.
CR3222 yina xivumbeko lexi fanaka na CR2322 hi mayelana na mullins effect. Ku pimanisiwa ka nkarhi wo leha exikarhi ka CR3222 na CR2322 swi kombisa leswaku hi ku ya hi matimba ya le henhla, CR3222 yikulu swinene ku tlula CR2322 hi mpimo lowu fanaka wa CR, naswona leswi fanaka swi tano endzhaku ko dyuhala eka 100 °C × 24 h. Hi mayelana na mullins effect, ku hambana eka mullins effect exikarhi ka CR3222 na CR2322 eka cr dosage yin’we loko kungase dyuhala eka 100 °C × 24 h akuri kukulu, kambe ku hambana ka ti mullins effect exikarhi ka Cr2322 na Cr322 eka 100 ckers. Hambiswiritano, endzhaku ka ku dyuhala eka 100 °C × 24 h, mullins effect ya CR3222 yi tsanile ku tlula ya CR2322 hi mpimo lowu fanaka wa CR.
2.4 Vuyelo bya tigiredi to hambana na mpimo wa CR eka ku tumbuluxiwa ka ku hisa loku cinca-cincaka ka rhaba ya V-belt compression .
Xiaki xa ku lahlekeriwa (TANδ), lexi nga tangent ya phase difference angle exikarhi ka strain na stress cycle ya viscoelastic material ehansi ka xiendlo xa alternating force field, xi tlhela xi ringana na ratio ya loss modulus eka modulus ya vuhlayiselo bya eneji ya material, naswona i index ya nkoka yo pima dynamic heat generation ya switirhisiwa swa rhaba. Hikokwalaho, vuyelo bya tigiredi to hambana na mpimo wa CR eka tanΔ ya V-belt compression rubber swi lavisisiwile.
Loko mahiselo ya xikambelo yari e henhla, tanΔ ya le hansi ya rhaba leyi vulcanized, naswona tanδ ya le henhla ya rhaba leyi vulcanized hiku tirhisiwa ka Cr, leswi swi fambelana na mhaka ya leswaku CR yina ntlawa wa CL side eka xivumbeko xa yona xa molecule.
Leswi swi fambelana na ntlawa wa le tlhelo ra CL eka xivumbeko xa molekhuli ya Cr. TanΔ ya rhaba leyi vulcanized yihunguteka loko ku tlakuka nhlayo ya CR2322, kambe ku hambana aku vonaki loko mahiselo yari ehansi ka 100°C. Ku engetela kwalano, tanΔ ya rhaba leyi vulcanized yihunguteka loko ku tlakuka nhlayo ya CR3222, kambe ku hambana aku vonaki ehansi ka 100°C. Ku tlula kwalaho, tanΔ ya rhaba leyi nga ni vulcanized hi yona yitsongo swinene eka swiphemu swa 20 swa CR3222. Eka ku pimanisiwa ka longitudinal, tanΔ ya CR3222 yi le hansi ka ya CR2322 eka mahiselo yo fana na nhlayo leyi fanaka ya CR, leswi nga ha vaka swi vangiwa hi ku hambana ka tanΔ ya rhaba yo horisa hikwalaho ka ku hambana ka xivumbeko xa molekyuli na ku hambana loku lavekaka ka cross-linking eka tlhelo rin’we, na hikwalaho ka ku hambana ka tanΔ ya rhaba ya ku horisa hikwalaho ka ku hambana ka cross-linking eka tlhelo rin’we eka tlhelo rin’wana, na hikwalaho ka ku hambana ka tanΔ ya ku horisiwa ka rhaba hikwalaho ka cross-linking eka cross-linking eka tlhelo rin’we, na hikwalaho ka ku hambana ka tanΔ ya ku horisiwa ka rhaba hikwalaho ka cross-linking eka cross-linking eka tlhelo rin’we, na hikwalaho ka ku hambana ka tanΔ ya rhaba ya ku horisa hikwalaho ka ku hambana ka cross-linking eka tlhelo rin’we eka tlhelo rin’wana.
3 Mahetelelo .
(1) Loko ku tirhisiwa ka CR2322 ku ya ku andza, T 10 na T 90 swi hungutiwile ivi swi lehisiwa, naswona m hm l a swi cincanga ngopfu. Hi ku tlakuka ka CR3222, T 10 na T 90 ti hungutiwile naswona m hm l yi tlakukile hakatsongotsongo. Viscosity ya Mooney yi tlakuka swinene hiku tlakuka ka CR dosage, naswona CR2322 yikulu kutlula CR3222 hi mayelana na ku tlakuka ka amplitude, kambe nkoka wa CR3222 wukulu loko ku tirhisiwa nhlayo leyi fanaka ya CR.
(2) Hi ku tlakuka ka ku tirhisiwa ka CR2322, matimba ya ku tsana hi ku angarhela a ya cinci ngopfu, matimba ya ku tsana ya hunguteka, ku leha ka 100% na ku tiya swi tlakuka. Hiku tlakuka ka CR3222, matimba ya tensile aya cinci ngopfu, elongation at tear yihunguteka, 100% elongation stress ya hunguteka kutani yi tlakuka, naswona ku tiya aswi cinci ngopfu. Nhlayo ya ku khomiwa ka swivumbeko swa nyama na michini ya ti CRS ha timbirhi yi tlakuke endzhaku ka ku dyuhala eka 100°C × 24 h. Endlelo ra sweswi ra vulcanization ritlhele rikumeka riri na nhlayo yale henhla ya retention ya swivumbeko swa physical na mechanical. Ehansi ka sisiteme ya sweswi ya vulcanization, ku lwisana ka flexural ka CR2322 swi antswa swinene ku tlula swa CR3222 eka 80°C.
(3) Loko nhlayo ya CR yi ri karhi yi tlakuka, vuyelo bya mullins bya hunguteka naswona matimba lamakulu ya tlakuka. Hi mayelana na matimba ya le henhla, CR3222 swi le rivaleni leswaku yikulu ku tlula CR2322 hi mpimo wa CR lowu fanaka, naswona yi tlhela yi fana endzhaku ka ku dyuhala eka 100 °C × 24 h. Hi mayelana na ti mullins effect, loko kungase dyuhala eka 100 °C × 24 h, akuri na ku hambana lokukulu exikarhi ka CR3222 na CR2322 kuya hi mullins effect eka cr dosage leyi fanaka, kambe endzhaku ka ku dyuhala eka 100 °C2 × 24 h, Cr322 na Cr232. Hambiswiritano, endzhaku ka ku dyuhala eka 100 °C × 24 h, mullins effect ya CR3222 yi tsanile ku tlula ya CR2322 hi mpimo lowu fanaka wa CR.
(4) TanΔ ya rhaba leyi nga ni vulcanized yi hunguteka hi ku tirhisiwa ka CR2322 loku tlakukeke, kambe ku hambana a ku vonaki loko yi ri ehansi ka 100 °C. Ku engetela kwalaho, loko nhlayo ya CR3222 yi tlakuka, tanδ ya rhaba leyi nga ni vulcanized hi yona yitsongo loko nhlayo ya CR3222 yi ri 20 wa swiphemu. TanΔ ya CR3222 yi le hansi ka ya CR2322 eka mahiselo yo fana ya xikambelo na mpimo wa CR lowu fanaka.
