Selulosi Hydroxyethyl Methyl (MHEC)
Methyl Hydroxyethyl Cellulose (MHEC/HEMC)
CAS:9032-42-2
O le Hydroxyethyl Methyl Cellulose (HEMC) e taʻua foʻi oMethyl Hydroxyethyl Cellulose(MHEC), o se cellulose ether e tele ona fa'aoga, e fa'aaogaina e fai ma vaila'au e taofia ai le vai, fa'amautu, mea fa'apipi'i ma vaila'au e fausia ai ata tifaga i ituaiga o mea faufale. E fa'aaogaina lautele le MHEC/HEMC i galuega fa'apisinisi, e pei o galuega faufale, vaila'au fa'amama, vali ma vali, e mafai fo'i ona matou tu'uina atu le HEMC e tusa ai ma mana'oga o tagata fa'atau. A mae'a ona fa'aleleia ma togafitia le luga, e mafai ona matou maua oloa e vave ona fa'asalalauina i le vai, fa'alauteleina le taimi e tatala ai, e tete'e ai i le goto ifo, ma isi mea fa'apena.
Meatotino masani
| Foliga vaaia | Pa'u pa'epa'e i le pa'epa'e eseese |
| Tele o le vaega | 98% e oo atu i le 100 mesh |
| Susū (%) | ≤5.0 |
| Tau o le PH | 5.0-8.0 |
Fausaga Fa'akemikolo o le MHEC
E gaosia le MHEC eetherifying cellulose masanifaatasi mavaega methyl ma hydroxyethyl. O nei suiga e faaleleia atili ai lonale mafai ona solo i le vai, le mafiafia, ma le fetaui leleima meafaitino eseese.
Uiga Autū o le MHEC:
- Fa'aaogāina i le Vai: E mafai ona fa'aaogāina i le vai vevela ma le vai malulu, ma fausia ai ni fofo manino.
- Malosiaga Fa'amafiafia: E maua ai le maualuga o le viscosity ma le pulea lelei o le rheology.
- Taofiofia o le Vai: E taofia ai le maumau o le vai i oloa e fa'avae i le sima ma le gypsum, e fa'aleleia atili ai le fa'amamago ma le pipii.
- Natura e Lē Fa'a-Ionic: E fetaui ma le tele o vaila'au eseese, e aofia ai masima ma vaila'au e fa'amama ai mea.
- Tomai e Fausia ai Ata Tifaga: E fatuina ai ata tifaga e fetuutuunai ma umi, e aoga i vali ma fa'aoga fa'afoma'i.
- Mausali i le Vevela: Tete'e i le vevela, e talafeagai ai mo galuega i le vevela maualuga.
Fa'amatalaga
| Vasega masani | Malōlōga (NDJ, mPa.s, 2%) | Malōlōga (Brookfield, mPa.s, 2%) |
| MHEC MH60M | 48000-72000 | 24000-36000 |
| MHEC MH100M | 80000-120000 | 4000-55000 |
| MHEC MH150M | 120000-180000 | 55000-65000 |
| MHEC MH200M | 160000-240000 | Min70000 |
| MHEC MH60MS | 48000-72000 | 24000-36000 |
| MHEC MH100MS | 80000-120000 | 40000-55000 |
| MHEC MH150MS | 120000-180000 | 55000-65000 |
| MHEC MH200MS | 160000-240000 | Min70000 |
Talosaga
| Talosaga | Meatotino | Fautuaina le togi |
| Sima fa'amafanafana puipui i fafo Sima palasita sima Fa'atulagaina e oe lava Sima paluga mago Palasitika | Fa'amālosi Fausiaina ma fa'amālōlōina Pipii mau i le vai Fa'atuai le taimi e tatala ai, tafe lelei Fa'amālosi, Fa'amauina i le vai | MHEC MH200MMHEC MH150MMHEC MH100MMHEC MH60MMHEC MH40M |
| Kelu mo pepa puipui mea fa'apipi'i latex Kelu laupapa | Fa'amālūlūina ma le fa'a'asu'uina Fa'amālosi ma le fusifusia i le vai Fa'amālosi ma le tumau o mea malo | MHEC MH100MMHEC MH60M |
| Fufulu | Fa'amālosi | MHEC MH150MS |
Aogā o le Fa'aaogaina o le MHEC
✔ Taofiofia Lelei o le Vai – Puipuia le mago vave i galuega faufale ma teuteuga.
✔ Fa'aleleia atili le Pipii – Fa'aleleia atili le malosi o le pipii i mea pipii o le ta'ele ma le sima.
✔ Tumau i se pH lautele – E aoga lelei i siosiomaga 'āsi, lē 'āsi, ma 'alkali.
✔ Fegalegaleai ma le Lē Fa'a-Ionic – E lelei fo'i ona fa'aoga ma masima, surfactants, ma isi polymers.
✔ Fa'aleleia atili le Rheology ma le Tafe o le Vai – E mafai ai ona pulea lelei le mafiafia, e puipuia ai le tafe ma le pa'u'ū.
Afifiina:
O le oloa MHEC/HEMC ua teuina i totonu o se taga pepa vaega e tolu ma ua fa'amalosia i totonu le taga polyethylene, o le mamafa mama e 25kg i le taga e tasi.
Teuina:
Taofi i totonu o se fale teu oloa malūlū ma mago, ʻaloʻese mai le susu, la, afi, ma le timu.
Kamupani Kemikolo a Kima, Ltd.o se kamupani gaosi oloa fa'apolofesa o cellulose ethers, e aofia aiHydroxyethyl Methylcellulose (HEMC), e ta'ua fo'i oMethyl Hydroxyethyl Cellulose (MHEC)O lo'o fa'agaoioia le kamupani i lalo o le igoa tau fefa'ataua'iga KimaCell®, ma e mafai ona gaosia le 20,000 tone i le tausaga, ma sapalaiina oloa lelei i le tele o alamanuia i le lalolagi atoa.