
krutrim raal

krutrim raal heey audhyogikdrushtya utpadit raal asatat, samanyatah chikat padarth jeey upchar prakriyedvare kathor polymermadhye rupantarit hotat. upchar karnyasathi, ralanmadhye samanyatah accrylates kinwa epoxidesarkhe pratikriyashil antim gut asatat. kahee krutrim ralanmadhye naisargik vanaspati ralasarkhe gunadharm asatat, parantu anekanmadhye tase nasate.
krutrim raal heey anek varganche asatat. kahee sendriya sanyuganchya estarifikeshandware tayar kelya jaatat. kahee thermosating plastic aahet jyamadhye 'raal' haah shabd pratikriyakartyanna, utpadananna kinwa doghannahi shithilpane lagoo keela jaato. "raal" heey kopolimarmadhil done monomersmadhil eka monomarvar lavale jaau shakate, tarr dusyala epocoxy ralapramane "hardner" mhatale jaate. thermosating plasticsathi jyasathi fakt eka monomerchi aavashyakta asate, monomer sanyug mhanje raal. udaharanarth, drav methyl methacrylatela polymerise aanee seet honyapurvi, drav sthiteet asatana anekada "raal" kinwa "casting raal" mhanatat. seet kelyanantar, parinami polly (methyl methacrylate) (pii. emm. emm. aii.) laa anekada "acrylic glass" kinwa "acrylic" asey punarnamit kele jaate. (heey plexiglass aanee lucite navache samaan sahitya aahe).
prakar.
abhijat prakar mhanje epocoxy raal, joou polymerisation-polyadition kinwa polycondensation pratikriyandware tayar keela jaato, chikat aanee sanyugmansathi thermoset polymer mhanoon vaparla jaato. epocoxy raal konkreetpeksha duppat majboot, akhand aanee jalrodhak aahe. tyanusar, 1960 chya dashakapasun tyacha vapar pramukhyane audhyogik farshisathi keela jaat aahe. tathapi, 2000 pasoon, epocoxy aanee polyurethane ralancha vapar antargat bhagatahi keela jaato, pramukhyane paschim europemadhye.
plexiglass/lucite (pii. emm. emm. aii.) madhye pradarshan vastoo antarbhut karnyasathi synthetic casting "raal" heey fakt methyl methacrylate drav aahe, jyamadhye polymerisation utprerak jodale jaate aanee misalale jaate, jyamule teey "seet" (polymerise) hote. polymerisationmule pii. emm. emm. aii. plasticcha ("acrylic glass") eka block tayar hoto joou display objectla pardarshak blockchya aat thevato.
aanakhi eka krutrim polymer, jyala kadhikadhi tyach samanya shrenidware sambodhale jaate, teey mhanje acetal raal. itar krutrim padarthanchya ulat, tathapi, tyat eka sadhee sakhali rachana aahe, jyache swaroop-[ch2o] − punaravrutti ekak aahe.
aayan-vinimay ralancha vapar jalshuddhikaran aanee sendriya pratikriyanchya utpreranasathi keela jaato. ('ett-10 raal', 'melamine raal' dekhil pahaa.) kahee aayan-vinimay raal heey aushadhopachar mhanoon pitt aaml anukramanika mhanoon, pramukhyane hypolypidemic agent mhanoon vaparale jaatat, jaree teey collesterol qamee karnyavyatirikt itar hetunsathi vaparale jaau shakatat.
dravak garbhit raal (see. aar. ess.) heey sachchidra raal kann asatat jyat sachchidra matrixchya aat atirikt drav ark asato. samavisht ark raal kananchi kshamata vadhavato asey manale jaate.
vaparlelya ralanpaiki 75 takke raal asaleli ralanchi eka mothee shreni mhanje asantrupt polyester raal.
pii. vhee. see. chya utpadanat "vinail chloride raal" chey utpadan samavisht asate, jeey polymerisation pramanat bhinn asate.
silicon raal.
silicon raal heey silicon-aadharit polymer aahet jeey havamanakshamta (tikaupana), astarakta, jaal vikarshankshamta, aushnik sthirata aanee rasayanik jadapana yasarkhe vividh upayukt gunadharm pradarshit karatat.
aarogyas dhoka.
samanyatah grahakanchya samparkat asalelya barey jhalelya utpadananshi sambandhit dhokyanpeksha, sambhavyatah krutrim ralanshi sambandhit aarogyache dhoke samanyatah qamee chintecha vishay asatat. swarasya asalelya samasyanmadhye abhedya monomers, oligomers aanee dravak vahakanche parinam samavisht aahet.
bayas-jee. emm. aii. yukt ralanvar aadharit dant punarujjivan samagri, sambhavya antahsravi vighatankarta asalelya sambandhit sanyug bisphenol aii madhye tutu shakate kinwa dooshit houu shakate. tathapi, dant ralanmadhye biis-jee. emm. aii. chya vaparache konatehi nakaratmak aarogya parinam aadhalale naheet.