Hydroxypropyl Methyl Cellulose Ether (HPMC)

Mawonekedwe:
① Ndi kusungirako bwino kwa madzi, kukhuthala, rheology ndi kumamatira, ndiye chisankho choyamba chopangira zida zomangira ndi zokongoletsera.
②Magwiritsidwe osiyanasiyana: chifukwa cha magiredi athunthu, atha kugwiritsidwa ntchito pazomangira zonse za ufa. 
③Mlingo waung'ono: 2-3 kg pa tani ya zida zomangira ufa chifukwa chapamwamba kwambiri.
④ Kutentha kwabwino kwa kutentha: kuchuluka kwa madzi osungiramo zinthu zamtundu wa HPMC kudzachepa ndi kuwonjezeka kwa kutentha. Mosiyana ndi zimenezi, mankhwala athu amatha kupanga matope kuti azikhala ndi madzi ochuluka kwambiri pamene kutentha kumafika 30-40 ° C. Kusunga madzi okhazikika ngakhale kutentha kwambiri kwa maola 48.
⑤Kusungunuka kwabwino: kutentha kwapakati, onjezerani madzi ndikugwedeza kwa mphindi zisanu, lolani kuti likhale kwa mphindi zingapo, kenaka gwedezani kuti lisungunuke. Kusungunuka kumafulumizitsa pa PH8-10. Njira yothetserayi imayikidwa kwa nthawi yayitali ndipo imakhala yokhazikika. Muzinthu zosakaniza zowuma, kuthamanga kwa kufalikira ndi kusungunuka m'madzi kumakhala koyenera.

Udindo wa HPMC mumatope owuma a ufa

Mumatope owuma a ufa, methyl cellulose ether imagwira ntchito yosungira madzi, kulimbitsa ndi kupititsa patsogolo ntchito yomanga. Kuchita bwino kosungirako madzi kumatsimikizira kuti matopewo sangapangitse mchenga, ufa ndi kuchepetsa mphamvu chifukwa cha kusowa kwa madzi ndi hydration yosakwanira simenti; kukhuthala kumawonjezera mphamvu zamapangidwe a matope onyowa, ndipo kuwonjezera kwa methyl cellulose ether mwachiwonekere Kumathandizira kukhathamiritsa konyowa kwa matope onyowa, komanso kumamatira bwino ku magawo osiyanasiyana, potero kuwongolera magwiridwe antchito a matope onyowa pakhoma ndikuchepetsa. kutaya.

Nthawi zambiri, kukwezeka kwa mamachulukidwe kumapangitsa kuti madzi asungidwe bwino. Komabe, kukwezeka kwa mamachulukidwe apamwamba, kukwezeka kwa mamolekyu a MC, ndipo kusungunuka kwake kudzachepetsedwa, zomwe zitha kusokoneza mphamvu ndi ntchito yomanga ya matope. The apamwamba mamasukidwe akayendedwe, ndi zoonekeratu kwambiri thickening zotsatira pa matope, koma si mwachindunji molingana. Kukwezeka kwa viscosity, m'pamenenso matope onyowa amawonekera kwambiri. Pakumanga, zimawonetsedwa ngati kumamatira ku scraper ndi kumamatira kwakukulu ku gawo lapansi. Koma sizothandiza kuwonjezera mphamvu zamapangidwe a dothi lonyowa palokha.

Thupi ndi mankhwala katundu:

1. Maonekedwe: ufa woyera kapena woyera.
2. Tinthu kukula: 80-100 mauna pass rate ndi wamkulu kuposa 98.5%; 80 mesh pass rate ndi 100%.
3. Kutentha kwa carbonization: 280-300 ° C
4. Kuwoneka kowoneka bwino: 0.25-0.70 / cm3 (kawirikawiri kuzungulira 0.5 / cm3), mphamvu yokoka yeniyeni 1.26-1.31.
5. Kutentha kwamtundu: 190-200 ° C.
6. Kuthamanga kwapamwamba: 2% yothetsera madzi ndi 42-56dyn / cm3.
7. Zosungunuka m'madzi ndi zosungunulira zina, monga ethanol / madzi, propanol / madzi, trichloroethane, ndi zina zotero. Madzi amadzimadzi amagwira ntchito pamtunda. Kuwonekera kwapamwamba komanso magwiridwe antchito okhazikika. Zosiyanasiyana zazinthu zimakhala ndi kutentha kosiyanasiyana kwa gel osakaniza, ndipo kusungunuka kumasintha ndi mamasukidwe akayendedwe. M'munsi mamasukidwe akayendedwe, kwambiri solubility. Mafotokozedwe osiyanasiyana a HPMC ali ndi kusiyana kwina mu ntchito, ndipo kusungunuka kwa HPMC m'madzi sikukhudzidwa ndi pH mtengo.
8. Ndi kuchepa kwa methoxyl, gel point imawonjezeka, kusungunuka kwa madzi kwa HPMC kumachepa, ndipo ntchito yapamwamba imachepanso.
9. HPMC ilinso ndi makhalidwe a thickening luso, kukana mchere, otsika phulusa okhutira, PH bata, kusunga madzi, dimensional bata, kwambiri filimu kupanga, ndi osiyanasiyana enzyme kukana, dispersibility ndi cohesiveness.

Cholinga chachikulu:

1. Makampani omangamanga: Monga chosungira madzi komanso chobwezeretsanso matope a simenti, amatha kupangitsa kuti matopewo azipopa. Amagwiritsidwa ntchito ngati chomangira mu pulasitala, pulasitala, putty ufa kapena zida zina zomangira kuti azitha kufalikira ndikutalikitsa nthawi yogwira ntchito. Itha kugwiritsidwa ntchito ngati matailosi a phala, marble, kukongoletsa pulasitiki, kulimbitsa phala, komanso kuchepetsa kuchuluka kwa simenti. Kusunga madzi kwa HPMC kumalepheretsa slurry kusweka chifukwa cha kuyanika mwachangu mukatha kugwiritsa ntchito, ndikuwonjezera mphamvu pambuyo poumitsa.
2. Makampani opanga Ceramic: Amagwiritsidwa ntchito kwambiri ngati chomangira popanga zinthu za ceramic.
3. Makampani opaka: Amagwiritsidwa ntchito ngati thickener, dispersant ndi stabilizer mu makampani ❖ kuyanika, ndi zogwirizana bwino m'madzi kapena organic solvents. Itha kugwiritsidwa ntchito pochotsa utoto.
4. Kusindikiza kwa inki: Amagwiritsidwa ntchito ngati thickener, dispersant ndi stabilizer mu makampani a inki, ndipo ali ndi mgwirizano wabwino m'madzi kapena organic solvents.
5. Pulasitiki: imagwiritsidwa ntchito ngati kupanga chotulutsa, chofewa, mafuta odzola, etc.
6. Polyvinyl kolorayidi: Amagwiritsidwa ntchito ngati dispersant popanga polyvinyl kolorayidi, ndipo ndi wothandizira wamkulu pokonzekera PVC ndi kuyimitsidwa polymerization.
7. Zina: Izi zimagwiritsidwanso ntchito kwambiri pazikopa, mapepala, kusunga zipatso ndi masamba komanso mafakitale a nsalu.

Momwe mungasungunulire ndikugwiritsa ntchito:

1. Tengani 1/3 kapena 2/3 ya madzi otentha ofunikira ndikutenthetsa pamwamba pa 85 ° C, onjezerani cellulose kuti mutenge madzi otentha, kenaka yikani madzi ozizira otsalawo, pitirizani kuyambitsa, ndikuziziritsa. chifukwa osakaniza.
2. Pangani mowa wonga phala: choyamba pangani mowa wa amayi a HPMC mokhazikika kwambiri (njirayi ndi yofanana ndi yomwe ili pamwamba pa slurry), onjezerani madzi ozizira ndikupitiriza kusonkhezera mpaka kuwonekera.
3. Kugwiritsa ntchito mosakanikirana: Chifukwa cha kugwirizana kwabwino kwa HPMC, kumatha kusakanikirana bwino ndi simenti, gypsum powder, pigments ndi fillers, ndi zina zotero, ndikukwaniritsa zomwe mukufuna.

Kuyika, kusunga ndi zodzitetezera:

Mmatumba mu pepala pulasitiki kapena makatoni migolo alimbane ndi polyethylene matumba apulasitiki, kulemera ukonde pa thumba: 25kg. Osindikizidwa kuti asungidwe. Tetezani ku dzuwa, mvula ndi chinyezi panthawi yosungira ndi kuyendetsa.