Zamgululi

Chizindikiro chazikhalidwe:

Maonekedwe: Phula Labwino Losasintha

Zamkatimu: ≥ 99%

Limatsogolera mfundo - 108^oC

Malo otentha: 66^oC

Kachulukidwe: 0.887 g / ml pa 20^oC

Kuchuluka kwa nthunzi 2.5 (vs mpweya)

Kutulutsa kwa nthunzi <0.01 mm Hg (25^oC)

Cholozera cha Refractive n 20 / D 1.465

Flash point> 230^of

Malangizo:

1. Tetrahydrofuran, zopangira za spandex kaphatikizidwe, zitha kukhala polycondensated (kutsegulira mphete ndi kukonzanso kwamapuloteni koyambitsidwa ndi cation) kupita ku poly (tetramethylene ether glycol) (PTMEG), yotchedwanso tetrahydrofuran polyether. PTMEG ndi toluene diisocyanate (TDI) adagwiritsidwa ntchito kupanga mphira wapadera wokhala ndi kukana, mafuta osagwira, kutentha pang'ono kutentha komanso mphamvu yayikulu, ndikuletsa polyether polyester zotanuka zopangidwa ndi dimethyl terephthalate ndi 1,4-butanediol. PTMEG yolemera kwambiri ya 2000 ndi p-methylene bis (4-phenyl) diisocyanate (MDI) imagwiritsidwa ntchito ngati zopangira za polyurethane elastic fiber (spandex fiber), mphira wapadera ndi zokutira zina zapadera. Ntchito yayikulu ya THF ndikupanga PTMEG. Malinga ndi ziwerengero zoyipa, zoposa 80% za THF padziko lapansi zimagwiritsidwa ntchito kutulutsa PTMEG, ndipo PTMEG imagwiritsidwa ntchito kwambiri kutulutsa zotanuka za spandex fiber. 2.Tetrahydrofuran(THF) ndichosungunulira wamba, makamaka choyenera kutaya PVC, polyvinylidene chloride ndi butylamine. Amagwiritsidwa ntchito kwambiri ngati zosungunulira zokutira pamwamba, zokutira anticorrosive, inki yosindikiza, tepi ndi zokutira filimu. Ikhoza kuyendetsa makulidwe ndi kuwala kwa chosanjikiza cha aluminiyamu mukamagwiritsa ntchito kusamba kosanjikiza kwa aluminiyamu Kupaka matepi, zokutira pamwamba pa PVC, kuyeretsa chojambula cha PVC, kuchotsa kanema wa PVC, zokutira cellophane, inki yosindikiza ya pulasitiki, zokutira za thermoplastic polyurethane, zosungunulira zomatira, zomwe zimagwiritsidwa ntchito kwambiri pakuphimba, zokutira zoteteza, inki, wothandizila komanso wothandizila wopangira zikopa.

3. Amagwiritsidwa ntchito ngati zopangira zopangira zinthu monga mankhwala. M'makampani opanga mankhwala, amagwiritsidwa ntchito popanga kebiqing, rifamycin, progesterone ndi mankhwala ena a mahomoni. Thiabendazole angagwiritsidwe ntchito ngati fungo wothandizila (chizindikiritso zowonjezera) mu mafuta mafuta ndi zosungunulira waukulu makampani mankhwala.

4. zosungunulira za chromatographic zogwiritsidwa ntchito zina (gel permeation chromatography) zimagwiritsidwa ntchito popanga mafuta achilengedwe, zotsekemera za acetylene, zotchingira kuwala kwa polymeric, ndi zina zambiri. Pogwiritsa ntchito tetrahydrofuran, makamaka kukula mwachangu kwa mafakitale a spandex ku China mzaka zaposachedwa, kufunika kwa PTMEG ku China kukuwonjezeka tsiku ndi tsiku, ndipo kufunika kwa tetrahydrofuran kukuwonetsanso kukula kwachangu.

Njira zopewera kusungira: zambiri, zinthuzo zimawonjezedwa ndi ma polymerization inhibitor. Sungani mosungira bwino komanso kozizira. Khalani kutali ndi gwero la moto ndi kutentha. Kutentha kosungira sikuyenera kupitirira 30 ℃. Phukusili liyenera kusindikizidwa osati kulumikizana ndi mpweya. Iyenera kusungidwa mosiyana ndi okosijeni, asidi, alkali, ndi zina. Zipangizo zowunikira kuphulika ndi malo opumira mpweya ndizovomerezeka. Ndizoletsedwa kugwiritsa ntchito zida zamakina ndi zida zomwe ndizosavuta kutulutsa ma spark. Malo osungira azikhala ndi zida zochiritsira zodontha mwadzidzidzi ndi zida zoyenera zosungira.

Wazolongedza: 180kg / ng'oma.

Mphamvu yapachaka: 2000 matani / chaka