Low mamasukidwe akayendedwe HPMC :HPMC 400 zimagwiritsa ntchito kudziletsa leveling matope, koma zambiri kunja.
Chifukwa: Kukhuthala kwamadzi kumakhala kotsika, ngakhale kusungidwa kwamadzi kumakhala koyipa, koma kusanja ndikwabwino, ndipo kachulukidwe kamatope ndikwambiri.
Kukhuthala kwapakati ndi kochepa:hydroxypropyl methylcelluloseHPMC 20000-40000 zimagwiritsa ntchito matailosi zomatira, wothandizila caulking, odana akulimbana matope, matenthedwe kutchinjiriza bonding matope, etc.
Chifukwa: kugwira ntchito bwino, kuwonjezera madzi pang'ono, kuphatikizika kwakukulu kwamatope.
1. Kodi cholinga chachikulu cha hydroxypropyl methylcellulose (HPMC) ndi chiyani?
——A: HPMC imagwiritsidwa ntchito kwambiri pomanga, zokutira, utomoni wopangira, zoumba, mankhwala, chakudya, nsalu, ulimi, zodzoladzola, fodya ndi mafakitale ena. HPMC akhoza kugawidwa mu: kalasi yomanga, kalasi chakudya ndi kalasi mankhwala malinga ndi cholinga. Pakali pano, zinthu zambiri zapakhomo ndizomangamanga. Pomanga kalasi, kuchuluka kwa ufa wa putty ndi waukulu kwambiri, pafupifupi 90% amagwiritsidwa ntchito popanga putty, ndipo enawo amagwiritsidwa ntchito ngati matope a simenti ndi guluu.
2. Pali mitundu ingapo ya hydroxypropyl methylcellulose (HPMC), ndipo pali kusiyana kotani pakugwiritsa ntchito kwawo?
——Yankho: HPMC ikhoza kugawidwa mumtundu wanthawi yomweyo komanso mtundu wosungunuka. Mankhwala amtundu wanthawi yomweyo amamwazikana mwachangu m'madzi ozizira ndikulowa m'madzi. Panthawiyi, madziwa alibe mamasukidwe akayendedwe, chifukwa HPMC amangomwazika m'madzi ndipo alibe kuvunda kwenikweni. Patapita mphindi 2, mamasukidwe akayendedwe a madzi pang`onopang`ono kuchuluka, kupanga mandala viscous colloid. Mankhwala osungunuka kutentha, akakumana ndi madzi ozizira, amatha kumwazikana m'madzi otentha, ndikutha m'madzi otentha. Kutentha kumatsika mpaka kutentha kwina (zogulitsa za kampani yathu ndi madigiri 65 Celsius), kukhuthala kumawonekera pang'onopang'ono mpaka kumapanga mawonekedwe a viscous colloid. Mtundu wosungunuka wotentha ukhoza kugwiritsidwa ntchito mu putty ufa ndi matope. Mu guluu wamadzimadzi ndi utoto, chodabwitsa cha clumping chidzachitika ndipo sichingagwiritsidwe ntchito. Mtundu wapomwepo uli ndi mapulogalamu ambiri. Itha kugwiritsidwa ntchito mu putty ufa ndi matope, komanso mu guluu wamadzimadzi ndi utoto, popanda zotsutsana.
3. Kodi njira zosungunulira za hydroxypropyl methylcellulose (HPMC) ndi ziti?
——Yankho: Njira yosungunula madzi otentha: Popeza HPMC simasungunuka m’madzi otentha, HPMC imatha kumwazikana mofanana m’madzi otentha pagawo loyambirira, kenako n’kusungunuka mofulumira ikakhazikika. Njira ziwiri zodziwika bwino zimafotokozedwa motere:
1) Ikani madzi otentha ofunikira mumtsuko ndikutenthetsa pafupifupi 70 ° C. Hydroxypropyl methylcellulose inawonjezeredwa pang'onopang'ono ndikugwedeza pang'onopang'ono, poyamba HPMC inayandama pamwamba pa madzi, ndipo pang'onopang'ono imapanga slurry, yomwe inakhazikika ndi kusonkhezera.
2), onjezani 1/3 kapena 2/3 ya kuchuluka kwa madzi ofunikira mumtsuko, ndikuwotcha mpaka 70 ° C, malinga ndi njira ya 1), kumwaza HPMC, konzani slurry yamadzi otentha; kenaka yikani madzi otsala otsala kumadzi otentha Mu slurry, kusakaniza kunakhazikika pambuyo poyambitsa.
Njira yosakaniza ufa: Sakanizani ufa wa HPMC ndi zinthu zina zambiri zaufa, sakanizani bwino ndi chosakanizira, kenaka yikani madzi kuti asungunuke, ndiye HPMC ikhoza kusungunuka panthawiyi popanda kugwirizana, chifukwa pali HPMC pang'ono chabe. ngodya yaying'ono. Ufa udzasungunuka mwamsanga pokhudzana ndi madzi. ——Njirayi imagwiritsidwa ntchito ndi opanga putty ufa ndi matope. [Hydroxypropyl methylcellulose (HPMC) amagwiritsidwa ntchito ngati thickener ndi chosungira madzi mu putty powder mortar. ]
4. Kodi mungaweruze bwanji ubwino wa hydroxypropyl methylcellulose (HPMC) mophweka komanso mwachidziwitso?
——Yankho: (1) Kuyera: Ngakhale kuyera sikungadziwe ngati HPMC ndi yosavuta kugwiritsa ntchito, ndipo ngati chowunikira chikuwonjezeredwa popanga, chidzakhudza ubwino wake. Komabe, zinthu zambiri zabwino zimakhala ndi zoyera zabwino. (2) Fineness: Ubwino wa HPMC nthawi zambiri amakhala ma mesh 80 ndi mauna 100, ndipo mauna 120 amakhala ochepa. Ambiri a HPMC opangidwa ku Hebei ndi 80 mesh. Kukongoletsedwa bwino, kumakhala bwinoko. (3) Transmittance: Ikani hydroxypropyl methylcellulose (HPMC) m'madzi kuti mupange colloid yowonekera, ndikuwona kufalikira kwake. Kuchuluka kwa mpweya, kumakhala bwino, kusonyeza kuti muli zinthu zochepa zosasungunuka mmenemo . The permeability wa ofukula riyakitala zambiri zabwino, ndi yopingasa riyakitala ndi zoipa, koma sitinganene kuti khalidwe ofukula riyakitala ndi bwino kuposa ya yopingasa riyakitala, ndipo pali zinthu zambiri zimene zimatsimikizira mankhwala khalidwe. (4) Kukoka kwapadera: kukulira kwa mphamvu yokoka yeniyeni, kulemera kwake kumakhala bwinoko. Kukoka kwapadera ndi kwakukulu, makamaka chifukwa chakuti hydroxypropyl yomwe ili mmenemo ndi yochuluka, ndipo hydroxypropyl imakhala yochuluka, kusungirako madzi kumakhala bwinoko.
5. Kuchuluka kwa hydroxypropyl methylcellulose (HPMC) mu putty powder?
——Yankho: Kuchuluka kwa HPMC komwe kumagwiritsidwa ntchito pochita ntchito kumasiyanasiyana malinga ndi nyengo, kutentha, khalidwe la calcium la phulusa la m’deralo, ndondomeko ya ufa wa putty ndi "khalidwe lofunika kwa makasitomala". Nthawi zambiri, ndi pakati pa 4 kg ndi 5 kg. Mwachitsanzo, ufa wambiri wa putty ku Beijing ndi 5 kg; ambiri a putty ufa mu Guizhou ndi 5 makilogalamu m'chilimwe ndi 4.5 makilogalamu m'nyengo yozizira;
6. Kodi kukhuthala koyenera kwa hydroxypropyl methylcellulose (HPMC) ndi chiyani?
——Yankho: Putty ufa nthawi zambiri umakhala 100,000 yuan, ndipo matope amakhala ovuta kwambiri, ndipo ndi osavuta kugwiritsa ntchito pa 150,000 yuan. Komanso, ntchito yofunika kwambiri ya HPMC ndi kusunga madzi, kenako thickening. Mu ufa wa putty, bola ngati kusungirako madzi kuli bwino komanso kukhuthala kumakhala kotsika (70,000-80,000), ndizothekanso. Inde, mamasukidwe akayendedwe ndi apamwamba, ndipo wachibale kusunga madzi ndi bwino. Pamene mamasukidwe akayendedwe amaposa 100,000, zotsatira za mamasukidwe akayendedwe pa kusunga madzi si zambiri.
7. Kodi zizindikiro zazikulu za hydroxypropyl methylcellulose (HPMC) ndi ziti?
——Yankho: Zomwe zili ndi Hydroxypropyl ndi kukhuthala, ogwiritsa ntchito ambiri amasamala za zizindikiro ziwirizi. Kukwera kwa hydroxypropyl kumapangitsa kuti madzi asungidwe bwino. Kukhuthala kwakukulu, kusunga madzi, bwino (osati mtheradi) bwino, komanso kukhuthala kwakukulu, kugwiritsa ntchito bwino mumatope a simenti.
8. Kodi zopangira zazikulu za hydroxypropyl methylcellulose (HPMC) ndi ziti?
—— A: Zida zazikulu za hydroxypropyl methylcellulose (HPMC): thonje woyengedwa, methyl chloride, propylene oxide, zopangira zina monga flake alkali, asidi, toluene, isopropanol, etc.
9. Kodi ntchito yaikulu ya HPMC ndi yotani pakugwiritsa ntchito ufa wa putty, ndipo kodi pali chemistry?
——Yankho: HPMC ili ndi ntchito zitatu zakukhuthala, kusunga madzi ndi kumanga mu putty powder. Kukhuthala: Ma cellulose amatha kukhuthala kuti ayimitse, sungani yankho kuti likhale lofanana komanso losasinthasintha, komanso kukana kugwa. Kusungirako madzi: Pangani ufa wa putty kuti uume pang'onopang'ono, ndipo thandizani kuyamwa kwa calcium phulusa pansi pamadzi. Kumanga: Ma cellulose ali ndi mphamvu yothira mafuta, zomwe zingapangitse ufa wa putty kukhala ndi ntchito yabwino. HPMC satenga nawo gawo pazamankhwala aliwonse ndipo imangogwira ntchito yothandizira. Kuonjezera madzi ku ufa wa putty ndikuwuyika pakhoma ndi mankhwala. Chifukwa cha kupangidwa kwa zinthu zatsopano, tengani ufa wa putty pakhoma, ugaye kukhala ufa, ndikugwiritsanso ntchito. Sizigwira ntchito, chifukwa zinthu zatsopano (calcium carbonate) zapangidwa. ) pamwamba. Zigawo zazikulu za ufa wa phulusa la calcium ndi: kusakaniza kwa Ca(OH)2, CaO ndi CaCO3 pang'ono, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium m'madzi ndi mpweya Pansi pa zochita za CO2, calcium carbonate imapangidwa, pamene HPMC imangokhala ndi madzi ndipo imathandizira kuti phulusa la calcium liziyenda bwino, ndipo silitenga nawo mbali pazochita zilizonse zokha.
10. HPMC ndi non-ionic cellulose ether, ndiye non-ionic ndi chiyani?
- Yankho: M'mawu a layman, osakhala ayoni ndi zinthu zomwe sizimayatsa madzi. Ionization imatanthawuza njira yomwe electrolyte imasiyanitsidwa ndi ma ion osunthika opanda pake mu zosungunulira zina (monga madzi, mowa). Mwachitsanzo, sodium chloride (NaCl), mchere wodyedwa tsiku lililonse, umasungunuka m'madzi ndi ionizes kuti apange ma ion a sodium (Na +) omwe ali ndi magetsi abwino ndi chloride ions (Cl) omwe ali ndi vuto loipa. Ndiko kuti, pamene HPMC imayikidwa m'madzi, sichimalekanitsa mu ma ion opangidwa, koma imakhala ngati mamolekyu.
Nthawi yotumiza: Oct-17-2022