Pik Langwej . 1. Introdyushɔn .
bikɔs ɔf in . Ay ɛlastikiti ., Eksɛlɛnt ɛya taytnɛs . , ɛn Resistance to difrɛn midia dɛn ., rɔba na in dɛn kin yuz bɔku bɔku wan insay . Oil ɛn gas siling sistem dɛn . fɔ Aerospace na di ., Avieshɔn . , ɛn Naval wepanri ..
wit di kwik divɛlɔpmɛnt fɔ . Chaina in Nashɔnal Difɛns Indastri ., Vulcanized rɔba kɔmpɔnɛnt dɛn . dɔn bigin fɔ impɔtant mɔ ɛn mɔ na Ikwipmɛnt fɔ Erospɛs ., Marin vessel dɛn . , ɛn Dip-si injinɛri ..
in patikyula, ɔnda di kɔmpleks . Marin Envayrɔmɛnt ., Di tin dɛn we dɛn kin yuz fɔ sidɔm wit rɔba . I fɔ bia wit Di ay humiditi ., Sɔl Sprɛy . , ɛn Mekanikal strɛs . wan tɛm, fɔ put ay dimand dɛn pan di matirial in . Lɔng tɛm stebiliti . ɛn Savis Layf ..
Naw, bɔku pan di stɔdi dɛn bɔt Rɔba we de ol . Fokus pan di . Tɛm-ɔksidativ ol biɛvhɔ . ɔf Vulkaniz rɔba . , men wan fɔ invɛstigat di ifɛkt dɛn we di tɛmpracha ɛn ɔksijɛn gɛt pan in prɔpati dɛn.
Bɔt, insay di . Marin Envayrɔmɛnt . , tin dɛn lɛk Ɔyl Midia ., Gas dɛn we de kɔrej . , ɛn Sɔl Sprɛy . coexist, we kin rili afɛkt di . Silin Pɔfɔmɛnshɔn . ɛn Savis LayfSpan . ɔf Vulcanized rɔba kɔmpɔnɛnt dɛn ..
Difrɛn frɔm dat, Rɔba pat dɛn we nɔ gɛt vulkaniz . (lɛk PartiƆly kroslinked protɛktiv pad dɛn ., Rɔba kɔtin dɛn . , ɛn Temporari sil dɛn we dɛn kin yuz na di sayt . ) Ekshibit poorer aging resistans bikɔs ɔf di lɔk fɔ wan stebul krɔslink nɛtwɔk.
Dɛn tin dɛn ya kin izi fɔ mek dɛn . Surface softening we de mek yu bɔdi sof ., Difɔmeshɔn . , ɛn Pɔfɔmɛnshɔn Digrɛdishɔn . ɔnda marin ɛksplɔshɔn.
2. Kɔz ɛn ifɛkt dɛn we rɔba de ol .
di tin dɛn we kin mek pɔsin . Rɔba we de ol . Yu kin sheb am to . Intrinsik . ɛn Ekstrinsik . Factors .:
Intrinsik Fakta dɛn . Inklud di . Kεmikכl kompozishun . di wan dɛn we de na di . Polima strɔkchɔ ., Molekyular Konfomeshɔn ., kristaliniti ., Chen Entanglement . , ɛn Chen Scission ɔ Oxidation introdyuz di tɛm we dɛn de prosɛs.
Extrinsic Factors . min Ɔksijɛn ., Ozon we de na di wɔl., tɛmprɛchɔ, sok, Sɔl Mist ., shep , ɛn Ultraviolet raytin . Na di envayrɔmɛnt.
Fɔ Vulcanized rɔba kɔmpɔnɛnt dɛn . , wan Tri-dimɛnshɔnal krɔslink strɔkchɔ . I de gi gud gud wan . Stret-rilaks resistans . ɛn Kεmikכl stεbiliti . .
Bɔt, fɔ lɔng tɛm we dɛn dɔn ɛksplɔz to . Marin Envayrɔmɛnt dɛn . kin stil mek . Krɔslink bond brek ., Surface krak krak . , ɔ Hardening ..
Rɔba pat dɛn we nɔ gɛt vulkaniz . , na di ɔda say, nɔ gɛt vulkanizashɔn tritmɛnt. Dɛn Loose molekyular chens . ɛn Big fri volyum . mek dɛn gɛt mɔ susɛptibl fɔ . Marin ayɔn dɛn ., Oksidayzin ɛjɛn dɛn . , ɛn UV raytin . , we kin mek pɔsin ol kwik kwik wan.
Aging-induced pefɔmans chenj dɛn inklud .:
Di chenj dɛn we de apin to di we aw pɔsin de luk . : Surface hardening, krak, stik, ɛn diskoloreshɔn.
Fizik ɛn kemikal dɛgradɛshɔn . : ridyushɔn pan . tik, Hadnɛs ., Tensile Strɔng ., Kompr ɛshɔn sɛt ., Viskoɛlastisiti . , ɛn Ilɛktrik prɔpati dɛn ..
So, insay prɛktikal aplikeshɔn dɛn lɛk . Aerospace oil sil dɛn ., Naval Protective Pads . , ɛn Dip-si siling ring dɛn . , i impɔtant fɔ mek dɛn mek difrɛn difrɛn tin dɛn . Di standad dɛn we dɛn de ɛvalueshɔn fɔ evalueshɔn . fɔ Vulkaniz dɛn . ɛn Nɔn-vulkaniz rɔba prɔdak dɛn ..
3. Aksɛlɛrat ol tɛst ɛn savis layf prɛdikshɔn .
insay Ɛnjinia Praktis, . Di prɔdak dɛn we dɛn mek wit rɔba . —mɔ Vulcanized rɔba kɔmpɔnɛnt dɛn . —Bɔku tɛm, dɛn kin gɛt savis layf fɔ pas tɛn ia.
fɔ simul fɔ yuz fɔ lɔng tɛm, . Ay-tɛmpracha aksɛlɛrat ol tɛst dɛn . dɛn kin yuz dɛn fɔ wok.
di fɔs stɔdi dɛn we dɛn bin yuz . Absɔpshɔn fɔ ɔksijɛn . as indikɛtɔ fɔ di ej we pɔsin de ol, leta i kin chenj to we dɛn de du am lɛk . Oven old we yu de ol ., Oksijɛn bɔm ., Bɔm we dɛn mek wit plen . , ɛn Atifishal weda . Test dɛn.
Di we aw dɛn kin yuz am mɔ tide na bay di . Arrhenius empirical rileshɔnship . ɛn di . Time–Temperature Superposition Prinsipul . , we de tek am se fɔ ɛvri 10 °C we di tɛmpracha de go ɔp, di . Riakshɔn ret . Dabl dɛn.
Bɔt, insay Marin Envayrɔmɛnt dɛn . , kɔstɔm Aksɛlɛrat Aging Prɛdikshɔn Mɔdal dɛn . sho devieshɔn dɛn bikɔs ɔf .:
difrɛn Riakshɔn mɛkanism dɛn . na difrɛn tɛmpracha zon dɛn, .
Antiɔksidant maykreshɔn ɔ prɛsipitashɔn .,
Polima mɔfɔlɔji ɛvolushɔn . , ɛn
Difyushɔn we de mek pɔsin nɔ gɛt ɔksijɛn . Rilayt to spɛshal tiknes.
So, fɔ . Vulcanized rɔba kɔmpɔnɛnt dɛn . we de wok insay . Marin Savis Kɔndishɔn dɛn . , i fayn fɔ mek di tɛmpratura we de mek di tɛm we dɛn de ol di tɛm we dɛn de ol, lɔng, lɔng di tɛm we dɛn de du di tɛst, ɔ divεlכp Multi-factor coupling models . we involv . sok, Sɔl Sprɛy . , ɛn Maykrobial aktiviti . fɔ mek dɛn go ebul fɔ du mɔ . Layf Taym Prɛdikshɔn Akkurayt ..
Fɔ Rɔba pat dɛn we nɔ gɛt vulkaniz . , bikɔs ɔf di absɛns ɔf wan stebul krɔslink nɛtwɔk, . Softening ɔ Failure . I kin apin kwik kwik wan we dɛn de ol kwik kwik wan.
So, tradishonal . Di wan dɛn we de na Arrhenius-based Ekstrapɔleshɔn dɛn nɔ kin abop pan, ɛn na jɔs . Short-Tɛm Stebiliti Ɛvalueshɔn dɛn . dɛn kin jɔs du am.
4. Marin Envayrɔmɛnt Simyuleshɔn fɔ Aksɛlɛrat Tɛst .
giv di komplex we di . Marin Envayrɔmɛnt . , wan-faktɔ tɛst dɛn lɛk . Humidity–ɔt ., Sɔl Sprɛy . , ɔ Mold Exposure . Nɔ ebul fɔ fulɔp fɔ riplikɛt di aktual savis kɔndishɔn dɛn.
Insay dis stɔdi, wan impɔtant . Humidity–Heat aging apparatus . bin gɛt wok, we bin tek ples fɔ distil wata wit . Atifishal si wata . , ɛn kɔndɔkt tɛst dɛn na . 90 °C we de na di . ɛn 98% humidity . Fɔ simul malti-faktɔ aksɛleret ol.
Dis we ya de mek di . Di ret fɔ ol pipul dɛn . bay lɛk aw dɛn rayt am . Eitfold , alaw fɔ mek dɛn ebul fɔ evaluate kwik kwik wan kwik kwik wan fɔ . Vulcanized rɔba kɔmpɔnɛnt dɛn . ɔnda Marin we de na di si ..
Di ɛkspirimɛnt rizɔlt dɛn de gi valyu gayd fɔ pik . Di tin dɛn we dɛn kin yuz fɔ mek silin . Insay 1999. Naval vessel dɛn ., Ikwipmɛnt fɔ Dayv . , ɛn sabmarin kebul dɛn . , we de ɛp bak fɔ mek di . Short-tem stebiliti . ɔf Nɔn-vulkaniz rɔba kɔmpɔnɛnt dɛn . Insay 1999. Protektiv strɔkchɔral aplikeshɔn dɛn ..
bikɔs ɔf in . Ay ɛlastikiti ., Eksɛlɛnt ɛya taytnɛs . , ɛn Resistance to difrɛn midia dɛn ., rɔba na in dɛn kin yuz bɔku bɔku wan insay . Oil ɛn gas siling sistem dɛn . fɔ Aerospace na di ., Avieshɔn . , ɛn Naval wepanri ..
