Kayayyaki

Alamar inganci:

Bayyanar: Ruwan Marar Gaskiya

Abun ciki: ≥ 99%

Maimaita narkewa - 108^oC

Matsayin tafasa: 66^oC

Yawa: 0.887 g / ml a 20^oC

Aparfin ƙananan 2.5 (vs iska)

Pressurearfin zafi <0.01 mm Hg (25^oC)

Nunin nishaɗi n 20 / D 1.465

Maɓallin filashi> 230^of

Umarni:

1. Tetrahydrofuran, kayan albarkatun spandex kira, na iya zama polycondensated kai (bude ringi da sake polymerization fara ta cation) zuwa poly (tetramethylene ether glycol) (PTMEG), wanda kuma aka sani da tetrahydrofuran polyether. An yi amfani da PTMEG da toluene diisocyanate (TDI) don yin roba ta musamman tare da jure lalacewar, juriya na mai, kyakkyawan yanayin zafin jiki mai kyau da ƙarfi mai ƙarfi, kuma an yi toshe kayan polyether polyester na roba da dimethyl terephthalate da 1,4-butanediol. PTMEG tare da nauyin kwayoyin 2000 da p-methylene bis (4-phenyl) diisocyanate (MDI) ana amfani dasu azaman albarkatun kasa don zaren roba na polyurethane (zaren spandex), roba ta musamman da wasu kayan shafawa na musamman. Babban amfani da THF shine samar da PTMEG. Dangane da ƙididdiga masu kauri, ana amfani da sama da 80% na THF a duniya don samar da PTMEG, kuma PTMEG galibi ana amfani dashi don samar da fiber spandex na roba. 2.Tetrahydrofuran(THF) shine kyakkyawan mahimmin narkewa, musamman dacewa da narkar da PVC, polyvinylidene chloride da butylamine. An yadu amfani da matsayin sauran ƙarfi ga surface shafi, anticorrosive shafi, bugu tawada, tef da kuma film shafi. Yana iya sarrafa kauri da kuma haske na aluminum Layer lokacin da amfani da electroless aluminum plating wanka. Tef shafi, PVC surface shafi, tsabtace PVC reactor, cire PVC fim, cellophane shafi, roba bugu tawada, thermoplastic polyurethane shafi, m sauran ƙarfi, yadu amfani da farfajiya, m shafi, tawada, hakar wakili da kuma roba fata surface jiyya wakili.

3. An yi amfani dashi azaman albarkatun ƙasa don haɗakar ƙwayoyi kamar magunguna. A cikin masana'antun magunguna, ana amfani dashi don hada kebiqing, rifamycin, progesterone da wasu kwayoyi masu magunguna. Ana iya amfani dashi azaman wakili mai ƙamshi (ƙarin ganewa) a cikin iskar gas da babban mai narkewa a masana'antar magunguna.

4. ana amfani da sinadarin chromatographic don sauran amfani (gel permeation chromatography) ana amfani dashi ga iskar gas, sinadarin acetylene, daskararrun hasken polymeric, da dai sauransu Tare da fadin aikace-aikace na tetrahydrofuran, musamman saurin bunkasar masana'antar spandex a kasar China a cikin yan shekarun nan, da bukatar PTMEG a China yana karuwa kowace rana, kuma bukatar tetrahydrofuran shima yana nuna saurin ci gaba.

Kariya don ajiya: gabaɗaya, ana ƙara samfuran tare da mai hana polymerization. Adana a cikin ɗakuna mai sanyi da iska. Nesanta daga wuta da tushen zafi. Yanayin ajiyar kada ya wuce 30 ℃. Ya kamata a rufe kunshin kuma ba cikin hulɗa da iska ba. Ya kamata a adana shi daban daga oxidant, acid, alkali, da sauransu. Ana amfani da hasken haske na fashewa da wuraren samun iska. An haramta amfani da kayan aikin injiniya da kayan aikin da ke da sauƙin samar da tartsatsin wuta. Yankin ajiya zai kasance sanye take da kwararar kayan aikin gaggawa da kuma kayan adanawa masu dacewa.

Shiryawa: 180kg / drum.

Matsayin shekara-shekara: Tan 2000 / shekara