thermogravimetric vishakalanam

thaapanila maarunnathinanusarichu oru saambilinte pindam alakkunna taapa vishakalanathinte oru reethiyaanu thermogravimetric vishakalanam allengil thermal gravimetric vishakalanam (tii. jii. eiii). eee alavu ghatta parivartthanangal, agiranam, agiranam, desorption thudangiya bhauthika prathibhasangalekkurichum athupole thanne kemisorptionukal, taapa vighadanam, kharavaathaka prathikaranangal (udha.jii., ooksideshan allengil reduction).
thermogravimetric analyser.
thermogravimetric analyser ennu vilikkunna oru upakaranathilaan thermogravimetric analysis (tii. jii. eiii) nadathunnathu. oru thermogravimetric analyser thudarchayaayi pindam alakkumbol oru saambilinte thaapanila kaalakramena maarunnu. pindam, thaapanila, samayam enniva thermogravimetric vishakalanathil adisthaana alavukalaayi kanakkaakkappedunnu, athesamayam eee moonnu adisthaana alavukalil ninnu niravadhi adhika alavukal edukkaam.
oru saadhaarana thermogravimetric analyseril oru choolaykkullil prograam cheyyaavunna niyanthrana thapanilayulla oru sample paan ulla oru krithyamaaya balance adangiyirikkunnu. thaapanila saadhaaranayaayi sthiramaaya nirakkil vardhippikkunnu (allengil chila prayogangalkku sthiramaaya pinda nashtatthinaayi thaapanila niyanthrikkunnu) oru taapa prathikaranatthinu kaaranamaakunnu. anthareeksha vaayu, vaakvam, nishkriya vaathakam, ooksidaising/reducing vaathakangal, nashanika vaathakangal, carberising vaathakangal, draavakangalude neeravi allengil "svayam srishtikkappetta anthareeksham" ennivayulppede vividha anthareekshangalil taapa prathikaranam sambhavikkam; athupole thanne uyarnna vaakvam, uyarnna marddam, sthiramaaya marddam allengil niyantritha marddam ennivayulppede vividha sammarddangal undakam.
oru thaapapravartthanathil ninnu shekharikkunna thermogravimetric daatta x-aaksisile thaapanilayo samayamo thammilulla vaii aaksisile pindam allengil prarambha pindatthinte shathamaanamaayi samaaharikkunnu. palappozhum minusamarnna eee plottine tii. jii. eiii karvu ennu vilikkunnu. aazhathilulla vyaakhyaanangalkkum deferential thermal vishakalanathinum upayogapradamaaya inflection pooyintukal nirnnayikkaan tii. jii. eiii karvinte (dii. tii. jii karvu) aadya derivative plott cheyyaam.
swabhaavasavisheshathakalude vighadana paattenukalude vishakalanathiloode vasthukkalude swabhaavasavisheshathakaayi oru tii. jii. eiii upayogikkaam. thermoplastics, thermosettukal, elaastomarukal, komposittukal, plaastik philimukal, naarukal, coatingukal, peyintukal, indhanangal ennivayulppedeyulla polymeric vasthukkalekurichulla padanatthinu ithu prathyekichum upayogapradamaaya oru saankethikavidyayaanu.
tii. jii. eiii. yude tharangal.
moonnu tharatthilulla thermogravimetry undu
aaplikkeshanukal.
taapa sthiratha.
oru vasthuvinte taapa sthiratha vilayiruthaan tii. jii. eiii upayogikkaam. aavasyamulla thaapanila paridhiyil, oru jeevivarggam thaapaparamaayi sthirathayullathaanenkil, pindatthil oru maattavum nireekshikkappedilla. valarekkuravulla pindanashtam tii. jii. eiii traceile cheriyatho allathatho aaya charivinodu yojikkunnu. oru vasthuvinte uyarnna upayoga thapanilayum tii. jii. eiii nalkunnu. eee thapanilaykkappuram padaartham kshayikkaan thudangum.
polymerukalude vishakalanathil tii. jii. eiii upayogikkunnu. polymerukal saadhaaranayaayi vighadikkunnathinu munbu urukunnu, athinaal polymerukalude taapa sthiratha anweshikkaan tii. jii. eiii pradhaanamaayum upayogikkunnu. mikka polymerukalum 200 digri selshyasinu munbu urukukayo apachayam sambhavikkukayo cheiyunnu. ennirunnaalum, gadanaaparamaaya maattangalo shakti nashtamo illaathe vaayuvil kuranjathu 300 digri selshyas nishkriya vaathakangalil 500 digri selshyas thapanilaye neridaan kazhiyunna oru tharam taapa sthirathayulla polymerukalundu, avaa tii. jii. eiii. vazhi vishakalanam cheyyaan kazhiyum.
ooksideshanum jwalanavum.
oru prathikaranatthinu sesham avasheshikkunna avashishtamaan ettavum lalithamaaya metteeriyal swabhaavam. udaaharanathinu, saadhaarana saahacharyangalil oru sample thermogravimetric analyserilekku looad cheythukondu oru jwalana prathikaranam pareekshikkam. thermogravimetric analyser sample athinte ignition thaapanilaykk appurathu choodaakki ayoon jwalanathinu kaaranamakum. prarambha pindatthinte shathamaanamaayi y-axis upayogichu plott cheytha thathfalamaayundaakunna tga vakram vakrathinte avasana pooyintil avashishtangal kanikkum.
tii. jii. eiii. yill ettavum saadhaaranamaayi nireekshikkaavunna nashtangalaanu auxidative maas losukal. 
chembu aloykalil ooksideshan prathirodham padikkunnathu valare pradhaanamaan. udaaharanathinu, naasa (naashanal aeronotics aandu space administration) jwalana enchinukalil avayude saadhyamaaya upayogathinaayi noothana chembu aloikalekkurichu gaveshanam nadathunnu. ennirunnaalum, ooksijan sambushtamaaya anthareekshathil chembu ooksaidukal roopappedunnathinaal eee aloykalil auxidative degradation sambhavikkam. shuttle vasthukkal veendum upayogikkaan naasa agrahikkunnathinaal ooksideshanodulla prathirodham pradhaanamaan. praayogika upayogathinaayi ithupolulla vasthukkalude staatik ooksideshan padikkaan tii. jii. eiii upayogikkaam.
tiji vishakalanathinidayilulla jwalanathe tga thermograamukalil nirmmicha vyathyastha adayaalangalaal thirichariyaan kazhiyum. valia alavil loha kaattalistukalulla shudheekarikkappedaatha kaarban naanotyoobukalude saambilukalil rasakaramaaya oru udaaharanam sambhavikkunnu. jwalanathethudarnnu, oru tii. jii. eiii tracinu nannayi perumaarunna pravartthanatthinte saadhaarana roopathil ninnu vyathichalikkan kazhiyum. druthagathiyilulla thaapanila maattatthil ninnaan eee prathibhasam undaakunnath. bharavum thapanilayum samayavumaayi thaarathamyappeduthumbol, aadyathe derivative plottile naadakeeyamaaya charivu maattam saambilinte pinda nashtavum thermocaple kaanunna thaapanilayile pettennulla vardhanavum ore samayathaan. vasthukkalile poruthakkedukal moolam kathunna pukayude kanikakal moolam, sareerabhaaram kuraykkunnathu moolam kaarbaninte ookseekaranathinappuram, pindam nashtappedaam.
ore saambilil vyathyastha pooyintukalil vyathyastha sareerabhaaram kurayunnathu saambilinte anisotropy roganirnayamaayum upayogikkaam. udaaharanathinu, oru saambilinte mukalilum thaazheyumulla bhaagathum chitharikkidakkunna kanikakal upayogichu sample edukkunnathu sedimenteshan kandethaan upayogapradamaakum, kaaranam thermograamukal ovarlaappu cheyyilla, pakshe kanika vitharanam vashangalil ninnu vashathekku vyathyasthamaanenkil avaa thammilulla vidavu kanikkum.
thermogravimetric kainattiks.
vividha vasthukkalude pyrolysis, jwalana prakriyakalil ulppedunna taapa (kaattalatik allengil noonn-kaattalatik) vighadanathinte prathikarana samvidaanangalekkurichulla ulkkazhchaykkaayi thermogravimetric kainattiks paryavekshanam cheyyaam.
kissinger reethi upayogichu vighadana prakriyayude sajeevamaakkal oorjjam kanakkakkaam.
sthiramaaya choodaakkal nirakk kooduthal saadhaaranamaanenkilum, sthiramaaya pindanashtam nirakkin nirddishta prathikarana chalanaathmakathaye prakaashippikkaan kazhiyum. udaaharanathinu, poolii vinail byoottiralinte kaarbanaiseshante gathikorja paraameterukal minittil 0.20 dablyudi% enna sthiramaaya pindanashtam nirakk upayogichaanu kandethiyathu.
mattu upakaranangalumayi samyojippichu pravartthikkuka.
thermogravimetric vishakalanam palappozhum mattu prakriyakalumaayi samyojippikkukayo mattu vishakalana reethikalumaayi samyojippikkukayo cheiyunnu. 
udaaharanathinu, forrier-transfom infrared spectroscopy (phir), maas spectrometry gyaas analysis ennivayumaayi bandhippikkunnathinaayi 2000 digri selshyas vare thapanilayil choodaakkunnathinaal tii. jii. eiii upakaranam thudarchayaayi oru sample thookkunnu. thaapanila vardhikkumbol, saambilinte vividha gadakangal vighadikkukayum oro pinda maattathinteyum bharam sathamaanam alakkaan kazhiyukayum cheiyunnu.

