Premium Dimethylacetamide (DMAc): Xigwitsirisi xa Polar xa Matirhelo ya le Henhla xa Tiindasitiri ta le Henhla
Tinsimu Letikulu ta Xikombelo
1. Vumaki bya Tipholimer: Ku endla leswaku ku va na Switirhisiwa swa Matirhelo ya le Henhla
DMAc i ribye ra xisekelo eka vuhumelerisi bya ti polymers ta xiyimo xale henhla, ngopfu ngopfu eka ku endliwa ka ti fibre ta matimba yale henhla na tifilimi:
Tifibre ta Aramid:
Eka ku endliwa ka ti fibre ta aramid (xikombiso, Kevlar®), DMAc yitirha tani hi solvent ya polyamide polymerization, leswi endlaka leswaku ku endliwa switirhisiwa swa ultra - strong leswi tirhisiwaka eka ti bulletproof vests, ti aerospace composites, na tintambhu ta ti indasitiri. Xikombiso, tikontiraka ta vusirheleri ta le United States ti titshege hi DMAc ku humelerisa ti fibre ta aramid leti nga na matimba yo tsana lama tlulaka 3,600 MPa.
Tifilimi ta Polyimide:
Yitirhisiwa eka vuhumelerisi bya ti films ta polyimide (PI) (xikombiso, Kapton®), DMAc yi n’okisa ti polyamic acid precursors, leswi pfumelelaka vulawuri lebyi kongomeke bya vukulu bya film xikan’we na swivumbeko swa optical. Tifilimi leti i ta nkoka swinene eka switirhisiwa swa elektroniki leswi cinca-cincaka (xikombiso, swikombiso swa OLED, ti-PCB leti cinca-cincaka) na ku pfaleriwa ka mahiselo ya le henhla eka timovha ta mimovha.
Spandex na Tifibre ta Xiendliwa:
Eka vumaki bya swiambalo (xikombiso, swimilani swa spandex swale Asia), DMAc yi olovisa ku rhendzeleka ka ti fibre ta polyurethane, ku tiyisisa diameter leyi fanaka na elasticity eka malapi lawa ya tirhisiwaka eka swiambalo swa mintlangu na swiambalo swa ntshikelelo wa swa vutshunguri.
2. Pharmaceutical & Biotechnology: Xigwitsirisi na Xitirhisiwa xo Angula
Ku Endliwa ka Swidzidziharisi: .
DMAc yitirha tani hi solvent yotala eka switirhisiwa swale xikarhi swa mirhi na vuhumelerisi bya active pharmaceutical ingredient (API). Vuswikoti bya yona byo n’okisa swihlanganisi swa organic na inorganic swiendla leswaku yiva kahle eka condensation, cyclization, na oxidation reactions. Xikombiso, yi tirhisiwa eka ku endliwa ka mirhi ya antiretroviral (xikombiso, ti HIV protease inhibitors) eka switirhisiwa swa mirhi swa le Yuropa.
Nseketelo wa Vumaki:
Eka swivumbeko swa le henhla (xikombiso, ti cream, ti gels), DMAc yi ndlandlamuxa ku nghena ka mirhi ya lipophilic hi nhlonge, leswi antswisaka bioavailability. Yitlhela yitirhisiwa eka ti parenteral solutions hikokwalaho ka chefu ya yona yale hansi xikan’we naku fambisana na physiology ya vanhu (LD5⁄4 > 3,000 mg/kg eka ti rats).
Switirhisiwa swa Biotech:
Eka vumaki bya biopharmaceutical, DMAc yitirhisiwa eka maendlelo yo basisa ti protein, kufana na chromatography, ku solubilize ti protein ta membrane xikan’we naku antswisa vuswikoti byo hambanyisa.
3. Vumaki bya Elektroniki & Semiconductor: Xigwitsirisi xo kongoma xa Microfabrication
Ku Susiwa ka Photoresist:
Eka ku endliwa ka semiconductor, DMAc yitirhisiwa eka maendlelo ya xiyimo xale henhla yo basisa ku susa masalela ya photoresist yo nonoka kusuka eka ti silicon wafers. Solvency ya yona yale henhla eka epoxy - based photoresists yi endla leswaku yiva na nkoka swinene eka nanolithography (xikombiso, EUV lithography eka 3nm chip nodes).
Vumaki bya OLED na Display:
Eka vuhumelerisi bya ti organic light - emitting diodes (OLEDs), DMAc yi n’okisela ti organic semiconductors nati dopants, leswi endlaka leswaku kuva na uniform thin - film deposition hiku tirhisa inkjet printing kumbe spin - coating. Vaendli va swikombiso va le Korea va tirhisa DMAc ku fikelela ku kongoma ka tipikseli ku ya fika eka swikalo swa micrometer.
Ku Electroplating na Ku Etching:
Yi tirha tani hi co - solvent eka ti electroplating baths ta nsuku na koporo, ku antswisa ku fana ka dipoziti eka thekinoloji ya xiyimo xale henhla ya ku paka (xikombiso, 3D ICs, fan - out wafer level packaging).
4. Ku Endliwa ka Swiambalo na Swikhumba: Switshuxo leswi nga ta tshama nkarhi wo leha
Ku rhendzeleka ka Fibre yo Endliwa: .
Eka vuhumelerisi bya ti acrylic fibres, DMAc yi siva ti solvents letingana chefu swinene (xikombiso, dimethylformamide, DMF), leswi nyikaka solvency leyi ringanisiwaka na ku khumbeka ka mbango wale hansi. Swigayo swa swiambalo swa le Yuropa swi tirhisa DMAc eka maendlelo lama nga onhiki ntumbuluko lama tiyisisiweke hi OEKO - TEX® Standard 100.
Ku Tshwuka Hi Xikhumba:
Tanihi xitirhisiwa xo cinca switirhisiwa swa ndzhavuko swo tshungula, DMAc yi ndlandlamuxa ku nghena ka ti tannins ta miroho, ku humesa dzovo ro olova, leri hefemulaka swinene eka swilo swa xiyimo xale henhla (xikombiso, swikhwama swa mavoko swa dzovo ra Italy). Ku cinca cinca ka yona ka le hansi swihunguta ku humesiwa ka VOC eka tindzhawu to endla madzovo.
5. Ku Basisa na ku Humesa ka Tiindasitiri: Ku tirha kahle na Vuhlayiseki
Ku Susa Mafurha hi Nsimbi:
Eka tiindasitiri ta swihahampfhuka na mimovha, DMAc yi susa masalela ya oyili, girisi, na flux eka swiphemu swa precision (xikombiso, ti turbine blades, swiphemu swa njhini). Nhlayo ya yona yale henhla yo vila (166°C) yitiyisisa ku khuluka kutsongo hinkarhi wa ku basisiwa ka ultrasonic, leswi hungutaka ku lahlekeriwa hi solvent.
Ku Humesiwa ka Swikumiwa swa Ntumbuluko:
Yitirhisiwa eka ku humesiwa ka ti pigments ta ntumbuluko (xikombiso, carotenoids kusuka eka algae) na mirhi kusuka eka switirhisiwa swa swimilani, DMAc yinyika solvency yo hlawula handle ko kavanyeta bioactivity ya ti compounds leti kongomisiweke.
Swihlawulekisi swa kona
| Vito ra Xiendliwa | Asidi ya Propionic | |||||||||
| Fomula ya Tikhemikhali | C3H6O2 | |||||||||
| Ndzilo wa Molekhuli | 74,08 g/mol | |||||||||
| Xivumbeko | Mati lama nga erivaleni lama nga riki na muhlovo | |||||||||
| Ndhawu yo N’oka | -20.8°C | |||||||||
| Ndhawu yo Vila | 141,1°C | |||||||||
| Rendzo | 0.993 g/cm3 | |||||||||
| CAS NO | 79 - 09 - 4. Xitsonga | |||||||||
| Khodi ya HS | 29155000 | |||||||||
| EINECS NO | 201 - 176 - 3. Xihlamusela-marito xa Xitsonga | |||||||||
| Xikombelo | Yi cheriwa eka tipulasitiki, pharma, swakudya, swintshuxekisi na swinun’hweriso | |||||||||
Xiphephana xa Vulawuri bya Khwalithi
| Vito ra Xiendliwa | Asidi ya Propionic | ||||||
| NCHUMU | NKOKA WA XIYIMO XA LE HENHLA (%) . | NKOKA WA XIKAMBELANTWISISO (%) . | |||||
| Nhlayo ya Propionic Acid, w/%≥ | 99.5 | 99.9 | |||||
| Ku tsindziyela (20/20°C) . | 0.993-0.997 | 0.996 | |||||
| Nhlayo ya ku vila/°C | 138.5-142.5 | 139.4-141.1 | |||||
| Masalela ya ku khuluka,w/%≤ | 0.01 | 0.006 | |||||
| Mati,w/%≤ | 0.15 | 0.02 | |||||
| Aldehyde,w/%≤ | ≤0.05 | 0.04 | |||||
| oxidization yo olova,w/%≤ | ≤0.05 | 0.01 | |||||
| Pb mg/kg≤ | 2.0.0 | ≤2.0 | |||||
| Tanihi mg/kg≤ | 3.0.0 | ≤3.0 | |||||
| Mahetelelo | Landzelela swipimelo swa GB 1886.210-2016 | ||||||
Khwalithi & Ku landzelerisa
Tigredi ta Vutengi: .
Giredi ya Elektroniki: ≥99.9% ya ku basa, na ti ions ta nsimbi ≤1 ppm, ku fikelela swipimelo swa SEMI C8 swa ku tirhisiwa ka semiconductor.
Giredi ya Mirhi: Yi fambisana na USP, EP, na JP, laha kungana ndzhongho ≤0.1% na UV absorbance ≤0.05 eka 260 nm.
Giredi ya Tiindasitiri: ≥99% ya ku basa, yi lulamerile eka switirhisiwa swa polymer na swiambalo, na nhlayo yale hansi ya sulphur na chloride.
Tiyiseleka:
Yi humelerisiwa hiku tirhisa catalytic amidation ya acetic anhydride na dimethylamine, hiku tirhisa energy - efficient distillation xikan’we na ti solvent recovery systems.
Swi nga tirhisiwa nakambe naswona swi fambisana na maendlelo ya tiindasitiri lama pfalekeke - ku fambisana na tipakani ta Pulani ya Matirhelo ya Ikhonomi ya Xirhendzevutani ya EU.
Vuhlayiseki:
Yi pakiwile eka swigubu swa nsimbi leyi nga riki na swilo swo bola kumbe mathangi ya ISO, na ku landzelerisa loku heleleke ka MSDS na ku lebula ka GHS eka vutleketli lebyi hlayisekeke (UN 2265, Class 3).
Ha Yini Hi Hlawula Dimethylacetamide Ya Hina?
Kunga khathariseki leswaku u tumbuluxa tipolymers ta xitukulwana lexi landzelaka ta swihahampfhuka, ku endla ti semiconductor ta xiyimo xa le henhla, kumbe ku vumba mirhi ya vutumbuluxi, DMAc ya hina yi tisa ku hakela loku nga ringanisiwiki na nchumu na ku tshembheka. Hi nseketelo wa xithekiniki wa misava hinkwayo na mphakelo lowu antswisiweke ku rhumeriwa hi ku hatlisa, hi tiyisisa leswaku matirhelo ya wena ya vuyeriwa eka matirhelo ya solvent leyi yo cinca-cinca na ku tshamiseka.
Pfula vuswikoti bya switirhisiwa swa xiyimo xa le henhla hi Premium Dimethylacetamide—laha ku kongoma ku hlanganaka na matirhelo eka indasitiri yin’wana na yin’wana.