Maleic Anhydride-1
Txheej Txheem Cej Luam Khoom
Maleic anhydride (CAS No.: 108-31-6) yog ib qho tseem ceeb unsaturated organic anhydride nrog cov tshuaj mis ntawm C₄H₂TUS₃Nws zoo li cov nplaim dawb lossis daj daj crystalline nrog cov ntxhiab tsw qab, muaj kev ua haujlwm siab, thiab sib xws zoo nrog ntau yam monomers thiab tshuaj lom neeg. Ua cov khoom siv organic tshuaj lom neeg ntau yam, nws yog siv dav hauv cov polymers, coatings, pharmaceuticals, kev ua liaj ua teb, thiab roj & roj lag luam, muab kev ua haujlwm ruaj khov thiab zoo txhim khu kev qha rau kev tsim khoom lag luam.
Cov Ntawv Thov & Siv
Maleic Anhydride qhov kev siv tau zoo heev tsav nws txoj kev siv thoob plaws ntau yam lag luam:
Cov Resins Polyester Tsis Muaj Kev Sib Txuas (UPR)
Daim Ntawv Thov Tseem Ceeb: Tshaj 50% ntawm kev tsim khoom MA thoob ntiaj teb yog siv rau hauv UPRs.
Cov Khoom Siv Kawg: Cov yas fiberglass-reinforced, cov tank, cov kav dej, cov khoom siv tsheb, cov hull nkoj, thiab cov vaj huam sib luag tsim kho.
Cov tshuaj sib xyaw ua ke
Cov Khoom Siv Ntxiv rau Cov Roj Lubricant: Siv ua ib feem hauv cov copolymers uas ua haujlwm ua cov viscosity index improvers thiab dispersants.
Cov Txheej Txheem Nto: Ib qho khoom siv raw rau alkyd resins siv rau hauv cov xim pleev xim thiab cov txheej txheem zoo.
Cov Tshuaj Ua Liaj Ua Teb
Nruab Nrab: Siv rau hauv kev tsim cov tshuaj tua kab, cov tshuaj tua kab (piv txwv li, Malathion), thiab cov tshuaj tswj kev loj hlob ntawm cov nroj tsuag.
Cov Khoom Noj Ntxiv
Fumaric thiab Malic Acid: Maleic Anhydride yog ib qho ua ntej rau cov kua qaub no uas tsis muaj tshuaj lom, siv ua cov tshuaj acidulants hauv cov dej haus thiab cov khoom noj.
Lwm Cov Ntawv Thov
Kev Ntsuas Ntawv: Siv rau hauv kev tsim cov alkyl ketene dimer (AKD), uas yog ib qho tshuaj ntsuas ntawv feem ntau.
Tetrahydrofuran (THF) / Gamma-Butyrolactone (GBL): Cis-Butenedioic Anhydride yog ib txoj hauv kev tseem ceeb rau kev tsim cov kuab tshuaj muaj nqis no.
Succinic Anhydride: Yooj yim hloov mus rau succinic anhydride rau ntau yam tshuaj syntheses.
Cov Lus Qhia Txog Kev Siv
| Khoom | Cov Lus Qhia Tshwj Xeeb |
|---|---|
| Qhov tsos | Dawb los yog daj daj crystalline flakes, tsis pom impurities |
| Kev Huv Si (GC) | ≥ 99.5% |
| Qhov Kub Yaj | 52.5 - 54.5 °C |
| Kub Kub | 202 °C |
| Cov ntsiab lus noo noo | ≤ 0.2% |
| Cov ntsiab lus tshauv | ≤ 0.01% |
| Xim (APHA) | ≤ 50 |