Alaabta

Tusmada tayada:

Muuqaalka: Liquid aan Dareen lahayn

Mawduuca: ≥ 99%

Barta dhalaalka - 108^oC

Bar kulaylka: 66^oC

Cufnaanta: 0.887 g / ml at 20^oC

Cufnaanta uumiga 2.5 (hawada)

Cadaadiska Uumiga <0.01 mm Hg (25^oC)

Refractive index n 20 / D 1.465

Bar dhibic> 230^of

Tilmaamaha:

1. Tetrahydrofuran, alaabta ceeriin ee isku-dhafka spandex, waxay noqon kartaa is-polycondensated (furitaanka giraanta iyo dib-u-sameynta polymerization ee ay bilawday cation) illaa poly (tetramethylene ether glycol) (PTMEG), oo sidoo kale loo yaqaan 'tetrahydrofuran polyether'. PTMEG iyo toluene diisocyanate (TDI) ayaa loo isticmaalay in lagu sameeyo caag gaar ah oo leh caabbinta xirashada, caabbinta saliida, waxqabadka heerkulka hooseeya ee wanaagsan iyo xoogga sare, iyo in la xakameeyo walxaha polyether polyester elastic waxaa lagu sameeyay dimethyl terephthalate iyo 1,4-butanediol. PTMEG oo leh culeyska molikiyuulka ee 2000 iyo p-methylene bis (4-phenyl) diisocyanate (MDI) ayaa loo isticmaalaa sida alaabta ceyriinka ah ee loo yaqaan 'polyurethane elastic fiber' (spandex fiber), caag gaar ah iyo ujeedooyin gaar ah oo la isku qurxiyo. Isticmaalka ugu weyn ee THF waa soo saarida PTMEG. Marka loo eego tirakoobka qallafsan, in ka badan 80% THF adduunka waxaa loo isticmaalaa in lagu soo saaro PTMEG, PTMEG-na waxaa badanaa loo isticmaalaa in lagu soo saaro fiber spandex fiber. 2.Tetrahydrofuran(THF) waa dareeraha guud ee aadka u fiican, gaar ahaan ku habboon kala dirista PVC, polyvinylidene chloride iyo butylamine. Waxaa si ballaaran loogu isticmaalaa sida dareeraha lakabka dusha sare, xinjirowga lidka ku ah xinjirowga, khad daabacan, cajalad iyo dusha filimka. Waxay xakamayn kartaa dhumucda iyo dhalaalka lakabka aluminium marka loo isticmaalo qubeyska aluminium koronto la'aan. Dahaarka cajaladda, dusha sare ee dusha sare, nadiifinta PVC-fiiqista, ka saarista filimka PVC, caleemaha cellophane, khad daabacan caag ah, daboolka polyurethane thermoplastic, xarkaha dareeraha, oo si ballaaran loogu isticmaalo daaha dusha sare, daaha difaaca, khad, wakiilka soo saarista iyo wakiilka daaweynta maqaarka maqaarka ee synthetic

3. Waxaa loo isticmaalay sida alaabta ceeriin ee isku-dhafka dabiiciga sida dawooyinka. Warshadaha dawooyinka, waxaa loo isticmaalaa in lagu soo saaro kebiqing, rifamycin, progesterone iyo daawooyinka hoormoonka qaarkood. Waxaa loo isticmaali karaa inuu yahay wakiilka urta (aqoonsiga lagu daro) gaaska shidaalka iyo dareeraha ugu muhiimsan ee warshadaha dawooyinka.

4. dareeraha chromatographic-ka ee adeegsadayaasha kale (gel permeation chromatography) waxaa loo isticmaalaa gaaska dabiiciga ah ee dhadhanka leh, dareeraha soosaara acetylene, xasilloonida iftiinka polymeric, iwm. Iyadoo si ballaaran loo adeegsanayo tetrahydrofuran, gaar ahaan koritaanka degdegga ah ee warshadaha spandex ee Shiinaha sannadihii la soo dhaafay, baahida loo qabo PTMEG ee Shiinaha ayaa sii kordheysa maalinba maalinta ka dambeysa, iyo baahida loo qabo tetrahydrofuran ayaa sidoo kale muujineysa isbeddel koriin deg deg ah.

Taxaddarrada keydinta: guud ahaan, alaabada waxaa lagu daraa polymerization inhibitor. Ku keydi bakhaar qabow oo hawo leh. Ka fogow dabka iyo isha kuleylka. Heerkulka keydinta waa inuusan ka badnaan 30 ℃. Xirmada waa in la shaabadeeyaa oo uusan hawada la xiriirin. Waa in si gooni ah loogu kaydiyaa oksaydh, aashito, alkali, iwm. Nalalka caddaynaya qarxinta iyo qalabka hawo-qaadashada ayaa la qaatay. Waa mamnuuc in la isticmaalo qalabka farsamada iyo aaladaha si fudud u soo saari kara dhimbilo. Meesha wax lagu keydiyo waa in lagu qalabeeyaa qalabka daaweynta xaaladaha degdegga ah ee daadinta iyo alaabta keydinta ee ku habboon.

Xirxirida: 180kg / durbaan

Awood sanadeed: 2000 tan / sanadkii