Low mamachulukidwe akayendedwe: 400 makamaka ntchito matope okha-leveling, koma nthawi zambiri kunja.
Chifukwa: kukhuthala kochepa, kusasunga bwino kwa madzi, koma malo abwino owongolera, kachulukidwe kakang'ono kamatope.
Kukhuthala kwapakatikati ndi kotsika: 20000-40000 imagwiritsidwa ntchito makamaka pakumatira matailosi, wothandizila caulking, matope odana ndi ming'alu, matope opangira matenthedwe, etc.
Zifukwa: Kugwira ntchito bwino, kuthira madzi pang'ono, komanso kuchuluka kwamatope.
1. Kodi hydroxypropyl methylcellulose (HPMC) amagwiritsidwa ntchito bwanji?
——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 mankhwala kalasi monga ntchito. Pakalipano, zinthu zambiri zapakhomo ndizomangamanga. M'kalasi yomanga, ufa wa putty umagwiritsidwa ntchito mochuluka, pafupifupi 90% umagwiritsidwa ntchito popanga putty, ndipo enawo amagwiritsidwa ntchito ngati matope a simenti ndi guluu.
2. Kodi pali mitundu ingati ya hydroxypropyl methylcellulose (HPMC)? Kodi amagwiritsa ntchito chiyani?
——A: HPMC akhoza kugawidwa mu mtundu yomweyo ndi otentha Sungunulani mtundu. Instant mankhwala kumwazikana mwamsanga madzi ozizira ndi kutha m'madzi. The madzi alibe mamasukidwe akayendedwe pa nthawi ino chifukwa HPMC kokha omwazika m'madzi osati kwenikweni kusungunuka. Pambuyo pa mphindi ziwiri, kukhuthala kwamadzimadzi kumawonjezeka pang'onopang'ono ndipo mawonekedwe a viscous colloid amapangidwa. Zinthu zosungunuka zotentha zimatha kumwazikana m'madzi otentha ndikuzimiririka m'madzi otentha zikakumana ndi madzi ozizira. Kutentha kumatsika mpaka kutentha kwina (zogulitsa za kampani yathu ndi madigiri 65 Celsius), kukhuthala kumawonekera pang'onopang'ono mpaka kupangika kwa viscous colloid. Mtundu wosungunula wotentha ungagwiritsidwe ntchito ngati putty ufa ndi matope. Mu guluu wamadzimadzi ndi utoto, clumping idzachitika ndipo sungagwiritsidwe ntchito. Mtundu waposachedwa uli ndi ntchito zambiri. Itha kugwiritsidwa ntchito ngati putty ufa, matope, guluu wamadzimadzi, ndi utoto popanda zotsutsana.
3. Kodi njira zosungunulira za hydroxypropyl methylcellulose (HPMC) ndi ziti?
——Yankho: Njira yosungunula madzi otentha: Popeza HPMC sisungunuka m’madzi otentha, HPMC imatha kumwazikana mofanana m’madzi otentha pagawo loyambirira ndi kusungunuka mwamsanga pambuyo pozizira. Njira ziwiri zodziwika bwino zafotokozedwa pansipa:
1) Ikani madzi otentha ofunikira mumtsuko ndikuwotha mpaka 70 ℃. Pang'onopang'ono onjezani hydroxypropyl methylcellulose ndikuyambitsa pang'onopang'ono. Poyamba HPMC imayandama pamadzi, kenako imapanga slurry, ndikuzizira ndikugwedeza.
2). Onjezerani 1/3 kapena 2/3 ya madzi ofunikira mumtsuko, kutentha mpaka 70 ° C, kufalitsa HPMC molingana ndi njira mu 1), ndikukonzekera madzi otentha slurry; kenaka yikani madzi ozizira otsalawo ku slurry yamadzi otentha. slurry m'madzi, yambitsani ndikuziziritsa kusakaniza.
Njira yosakaniza ufa: Sakanizani ufa wa HPMC ndi zinthu zina zambiri za ufa, sakanizani bwino ndi blender, kenaka yikani madzi kuti musungunuke. Panthawiyi, HPMC ikhoza kusungunuka ndipo sichidzaphatikizana, chifukwa pali HPMC pang'ono pa gawo lililonse. Ngodya yaying'ono. Ufa umasungunuka nthawi yomweyo ukakumana ndi madzi. --Opanga ufa wa putty ndi matope amatengera njira iyi. Hydroxypropyl methylcellulose (HPMC) amagwiritsidwa ntchito ngati thickener ndi kusunga madzi mu putty powder mortar.
4. Kodi mungaweruze bwanji ubwino wa hydroxypropyl methylcellulose (HPMC) mophweka komanso mwachidziwitso?
——Yankho: (1) Kuyera: Ngakhale kuyera sikumatsimikizira ngati HPMC ndi yosavuta kugwiritsa ntchito, ngati zowunikira zimawonjezeredwa panthawi yopanga, zimakhudza ubwino wake. Komabe, zinthu zambiri zabwino zimakhala ndi zoyera zabwino. (2) Fineness: Ubwino wa HPMC nthawi zambiri umakhala 80 mauna ndi 100 mauna, ndi 120 mauna kukhala ochepa. Ambiri a HPMC opangidwa ku Hebei ndi 80 mesh. Kukongoletsedwa bwino kumakhala bwinoko. (3) Kutumiza kwa kuwala: Ikani hydroxypropyl methylcellulose (HPMC) m'madzi kuti mupange colloid yowonekera, ndikuyang'ana kuwala kwake. Kukwera kwa kuwala kwapamtunda, kumakhala bwino, kusonyeza kuti mkati mwake muli zinthu zosasungunuka. The mpweya permeability wa ofukula riyakitala zambiri kuposa ya yopingasa riyakitala, koma sitinganene kuti khalidwe ofukula riyakitala ndi bwino kuposa ya yopingasa riyakitala. Pali zinthu zambiri zomwe zimatsimikizira mtundu wa mankhwala. (4) Mphamvu yokoka yeniyeni: Kuchuluka kwa mphamvu yokoka ndi kulemera kwake, kumakhala bwinoko. Mphamvu yokoka yeniyeni nthawi zambiri imakhala chifukwa cha kuchuluka kwa hydroxypropyl momwemo. Kukwera kwa hydroxypropyl kumapangitsa kuti madzi asungidwe bwino.
5. Kodi mlingo wa hydroxypropyl methylcellulose (HPMC) mu putty powder ndi wotani?
——Yankho: Mlingo wa HPMC pakugwiritsa ntchito kwenikweni umasiyanasiyana malinga ndi nyengo, kutentha, mtundu wa calcium wa phulusa, ndi njira yolowera. ty ufa ndi "khalidwe lofunidwa ndi kasitomala". Nthawi zambiri, ndi pakati pa 4kg ndi 5kg. Mwachitsanzo, ufa wambiri wa putty ku Beijing ndi 5 kg; ufa wambiri wa putty ku Guizhou ndi 5 kg m'chilimwe ndi 4.5 kg m'nyengo yozizira;
6. Kodi kukhuthala koyenera kwa hydroxypropyl methylcellulose (HPMC) ndi chiyani?
——Yankho: Ufa wa putty nthawi zambiri umawononga ma yuan 100,000, ndipo matope amafunikira zambiri, ndiye 150,000 yuan ndiyokwanira. Ndipo ntchito yofunika kwambiri ya HPMC ndi kusunga madzi, kenako thickening. Mu putty powder, bola ngati ali ndi madzi osungira bwino komanso kutsika kwa viscosity (70,000-80,000), zili bwino. Zoonadi, kukwezeka kwa viscosity kumapangitsa kuti madzi azikhala bwino. Pamene mamasukidwe akayendedwe kuposa 100,000, mamasukidwe akayendedwe ali ndi zotsatira zochepa pa kusunga madzi.
7. Kodi zizindikiro zazikulu za hydroxypropyl methylcellulose (HPMC) ndi ziti?
——A: Hydroxypropyl zili ndi mamasukidwe akayendedwe, ogwiritsa ntchito ambiri amakhudzidwa ndi zizindikiro ziwirizi. Kukwera kwa hydroxypropyl kumapangitsa kuti madzi asungidwe bwino. Ndi kukhuthala kwakukulu, kusungirako madzi kumakhala bwino (osati mwamtheradi), ndipo ndi kukhuthala kwakukulu, kumagwiritsidwa 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, zinthu zina zopangira monga caustic soda, asidi, toluene, mowa wa isopropyl, ndi zina.
9. Kodi ntchito yaikulu ya HPMC ndi yotani pakugwiritsa ntchito ufa wa putty? Kodi ili ndi zotsatira za mankhwala?
——Yankho: HPMC ili ndi ntchito zazikulu zitatu za thickening, kusunga madzi ndi kumanga mu putty powder. Makulidwe: Ma cellulose amatha kukulitsa kuyimitsidwa, kusunga yunifolomu ya yankho ndikukana kugwa. Kusungirako madzi: Pangani ufa wa putty kuti uume pang'onopang'ono ndikuthandizira kuyamwa kwa calcium yotuwa pansi pamadzi. Zomangamanga: Ma cellulose amakhala ndi mafuta opangira mafuta ndipo amatha kupanga ufa wa putty kukhala ndi ntchito yabwino. HPMC sitenga nawo gawo pazosintha zilizonse zamakina ndipo imangogwira ntchito yothandizira. Pamene putty ufa wawonjezedwa m'madzi ndikugwiritsidwa ntchito pakhoma, zotsatira za mankhwala zidzachitika. Pamene chinthu chatsopano chimapangidwira, ufa wa putty pakhoma umachotsedwa pakhoma ndikuyika ufa musanagwiritse ntchito. Izi sizikugwira ntchito chifukwa chinthu chatsopano (calcium carbonate) chapangidwa. ) pamwamba. Zigawo zazikulu za ufa wa calcium imvi ndi: osakaniza Ca(OH)2, CaO ndi CaCO3 pang'ono, CaO+H2O=Ca(OH)2 -Ca(OH)2+CO2=CaCO3↓+H2O Gray calcium imasungunuka m'madzi ndi mpweya CO2 Pansi pa calcium carbonate, HPMC imangosunga madzi ndipo imathandizira calcium yotuwa kuti izichita bwino, ndipo satenga nawo mbali pazochita zilizonse zokha.
10. HPMC ndi ether yosakhala ionic cellulose, ndiye yomwe si-ionic ndi chiyani?
A: M'mawu a layman, ma non-ion ndi zinthu zomwe sizimayatsa m'madzi. Ionization ndi njira yomwe ma electrolyte amasiyanirana ndi ayoni oyenda momasuka mu zosungunulira zina (monga madzi, mowa). Mwachitsanzo, sodium chloride (NaCl), mchere womwe umadyedwa tsiku lililonse, umasungunuka m'madzi ndi kusungunula, kupanga ma ayoni a sodium (Na+) oyendetsedwa momasuka komanso ma chloride ions (Cl). Ndiko kuti, pamene HPMC imayikidwa m'madzi, simadzigawanitsa mu ma ions odzaza, koma imakhala mu mawonekedwe a maselo.
Nthawi yotumiza: Feb-06-2024