Hydroxypropyl methylcellulose (HPMC) ndi ether yosakhala ionic cellulose yopangidwa kuchokera ku cellulose yachilengedwe ya polima kudzera munjira zingapo zama mankhwala.Hydroxypropylmethylcellulose (Mtengo wa HPMC) ndi ufa woyera wopanda fungo, wosakoma, wopanda poizoni womwe ukhoza kusungunuka m'madzi ozizira kuti upange njira yowonekera yowonekera.Lili ndi katundu wa thickening, kumanga, kubalalika, emulsifying, filimu kupanga, suspending, adsorbing, gelling, pamwamba yogwira, kusunga chinyezi ndi kuteteza colloid.
HPMC chimagwiritsidwa ntchito zomangamanga, zokutira, utomoni kupanga, 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, ufa wa putty umagwiritsidwa ntchito mochuluka, pafupifupi 90% umagwiritsidwa ntchito ngati putty ufa, ndipo enawo amagwiritsidwa ntchito ngati matope a simenti ndi guluu.
Ma cellulose ether ndi polymer ya cellulose semi-synthetic high molecular polymer, yomwe imasungunuka m'madzi komanso kusungunuka.
Zotsatira zomwe zimayambitsidwa ndi mafakitale osiyanasiyana ndizosiyana.Mwachitsanzo, muzinthu zomangira mankhwala, zimakhala ndi zotsatirazi:
①Wosunga madzi, ②Thickener, ③katundu woyezera, ④Katundu wopanga mafilimu, ⑤Binder
Mu polyvinyl kolorayidi makampani, ndi emulsifier ndi dispersant;mu makampani opanga mankhwala, ndi binder ndi pang'onopang'ono ndi kulamulidwa kumasulidwa chimango zakuthupi, etc. Chifukwa mapadi ali ndi zotsatira zosiyanasiyana zophatikizana, ntchito yake Munda ndi wochuluka kwambiri.Kenako, ndidzayang'ana kwambiri kugwiritsa ntchito ndi ntchito ya cellulose ether muzinthu zosiyanasiyana zomangira.
Kugwiritsa ntchito in khomaputty
Mu putty powder, HPMC imagwira ntchito zitatu zokulitsa, kusunga madzi ndi kumanga.
Kukhuthala: Ma cellulose amatha kukhuthala kuti ayimitse ndikusunga yunifolomu ya yankho mmwamba ndi pansi, ndikupewa kugwa.
Zomangamanga: Ma cellulose amakhala ndi mafuta, omwe amatha kupanga ufa wa putty kukhala womanga bwino.
Ntchito mu matope a konkriti
Mtondo wokonzedwa popanda kuwonjezera madzi osungira madzi umakhala ndi mphamvu zopondereza kwambiri, koma katundu wosasunga madzi bwino, mgwirizano, kufewa, kutulutsa magazi kwambiri, kusagwira ntchito bwino, ndipo kwenikweni sangathe kugwiritsidwa ntchito.Choncho, madzi-kusunga thickening zakuthupi ndi chigawo chofunikira cha matope okonzeka osakaniza.Mu konkire yamatope, hydroxypropyl methyl cellulose kapena methyl cellulose nthawi zambiri amasankhidwa, ndipo kuchuluka kwa madzi osungirako kumatha kukwezedwa kupitilira 85%.Njira yogwiritsira ntchito konkire yamatope ndikuwonjezera madzi pambuyo pa ufa wowuma wosakanikirana mofanana.Kusunga madzi kwambiri kumatha kutsitsa simenti mokwanira.Kuwonjezeka kwakukulu kwa mgwirizano.Pa nthawi yomweyi, mphamvu yothamanga ndi yometa ubweya imatha kusinthidwa moyenera.Kuwongolera kwambiri ntchito yomanga ndikuwongolera magwiridwe antchito.
Kugwiritsa ntchito zomatira matailosi
1. Hydroxypropyl methylcellulose zomatira matailosi amagwiritsidwa ntchito mwapadera kupulumutsa kufunika koviikidwa kale matailosi m'madzi.
2. Standardized phala ndi amphamvu
3. Kuchuluka kwa phala ndi 2-5mm, kupulumutsa zipangizo ndi malo, ndikuwonjezera malo okongoletsera
4. Zofunikira pakuyika zaukadaulo kwa ogwira ntchito sizokwera
5. Palibe chifukwa chokonzekera ndi mapepala apulasitiki a mtanda nkomwe, phala silidzagwa pansi, ndipo kumamatira kumakhala kolimba.
6. Sipadzakhala slurry wochuluka m'magulu a njerwa, zomwe zingapewe kuipitsidwa kwa njerwa.
7. Zidutswa zingapo za matailosi a ceramic zitha kulumikizidwa palimodzi, mosiyana ndi kukula kwa matope a simenti yomanga.
8. Kuthamanga kwa zomangamanga kumathamanga, pafupifupi 5 nthawi mofulumira kuposa kuyika matope a simenti, kupulumutsa nthawi ndi kupititsa patsogolo ntchito.
Kugwiritsa ntchito caulking agent
Kuwonjezera pa cellulose ether kumapangitsa kuti ukhale wabwino m'mphepete adhesion, shrinkage otsika ndi mkulu abrasion kukana, amene amateteza zinthu m'munsi ku kuwonongeka makina ndi kupewa zotsatira zoipa kulowa madzi pa nyumba yonse.
Kugwiritsa ntchito pazida zodziyimira pawokha
Pewani magazi:
Imathandiza kwambiri kuyimitsidwa, kuteteza slurry mafunsidwe ndi magazi;
Pitirizani kuyenda ndi:
The mankhwala otsika mamasukidwe akayendedwe samakhudza otaya slurry ndipo n'zosavuta ntchito.Zimakhala ndi kusungirako madzi ena ndipo zimatha kubweretsa zotsatira zabwino pamtunda pambuyo podzikweza kuti zipewe ming'alu.
Kugwiritsa ntchito matope otsekera kunja kwa khoma
Pazinthu izi, ether ya cellulose makamaka imagwira ntchito yolumikizana ndikuwonjezera mphamvu, kupangitsa kuti matope azikhala osavuta kuvala ndikuwongolera magwiridwe antchito.Panthawi imodzimodziyo, imakhala ndi mphamvu yokana kupachika.Kukana kwa mng'alu, kupititsa patsogolo khalidwe lapamwamba, kuonjezera mphamvu za mgwirizano.
Kuphatikizika kwa hydroxypropyl methylcellulose kunalinso ndi kuchepa kwakukulu pakusakaniza kwamatope.Ndi kuwonjezeka kwa kuchuluka kwa HPMC, nthawi yoyika matope ikuwonjezeka, ndipo kuchuluka kwa HPMC kumawonjezekanso moyenerera.Nthawi yoyika matope opangidwa pansi pa madzi ndi yaitali kuposa yomwe imapangidwa mumlengalenga.Mbali imeneyi ndi yabwino kupopera konkire pansi pa madzi.Mtondo watsopano wa simenti wosakanikirana ndi hydroxypropyl methylcellulose uli ndi zinthu zolumikizana bwino ndipo pafupifupi palibe madzi otuluka.
Kugwiritsa ntchito matope a gypsum
1. Kupititsa patsogolo kuchuluka kwa kufalikira kwa gypsum base: Poyerekeza ndi hydroxypropyl methylcellulose ether yofanana, chiwerengero chofalikira chikuwonjezeka kwambiri.
2. Magawo ogwiritsira ntchito ndi mlingo: gypsum yopepuka pansi yopepuka, mlingo woyenera ndi 2.5-3.5 kg/tani.
3. Kuchita bwino kwambiri kwa anti-sagging: palibe sag pamene kumanga chiphaso chimodzi kumagwiritsidwa ntchito muzitsulo zolimba, palibe sag pamene ikugwiritsidwa ntchito kwa maulendo oposa awiri (kuposa 3cm), pulasitiki yabwino kwambiri.
4. Zomangamanga zabwino kwambiri: zosavuta komanso zosalala zikamapachika, zimatha kupangidwa nthawi imodzi, ndipo zimakhala ndi pulasitiki.
5. Kuchuluka kwa madzi osungira madzi: kutalikitsa nthawi yogwiritsira ntchito gypsum base, kupititsa patsogolo nyengo ya gypsum base, kuonjezera mphamvu zomangira pakati pa gypsum base ndi maziko, ntchito yabwino yomangirira yonyowa, ndi kuchepetsa phulusa lofika.
6. Kugwirizana kwamphamvu: Ndikoyenera kwa mitundu yonse ya gypsum base, kuchepetsa nthawi yomira ya gypsum, kuchepetsa kuyanika kwa shrinkage, ndipo pamwamba pa khoma sikophweka kubisala ndi kusweka.
Kugwiritsa ntchito mawonekedwe othandizira
Hydroxypropylmethylcellulose (HPMC) ndi hydroxyethylmethylcellulose (HEMC) amagwiritsidwa ntchito kwambiri zomangira,
Ikagwiritsidwa ntchito ngati cholumikizira makoma amkati ndi kunja, imakhala ndi izi:
-N'zosavuta kusakaniza popanda zotupa:
Mwa kusakaniza ndi madzi, kukangana panthawi ya kuyanika kumachepetsedwa kwambiri, kumapangitsa kusakaniza kukhala kosavuta komanso kusunga nthawi yosakaniza;
- Kusunga madzi bwino:
Amachepetsa kwambiri chinyezi chomwe chimatengedwa ndi khoma.Kusungidwa bwino kwa madzi kumatha kutsimikizira nthawi yayitali yokonzekera simenti, ndipo kumbali ina, imathanso kuwonetsetsa kuti ogwira ntchito amatha kukwapula khoma la putty nthawi zambiri;
- Kukhazikika kwabwino pantchito:
Kusungidwa bwino kwa madzi pamalo otentha kwambiri, oyenera kugwira ntchito m'chilimwe kapena madera otentha.
- Zofunikira zamadzi zowonjezera:
Kumawonjezera kwambiri kufunikira kwa madzi pazinthu za putty.Imawonjezera nthawi yautumiki wa putty pakhoma, kumbali ina, imatha kukulitsa malo okutira a putty ndikupanga chilinganizocho kukhala chandalama.
Ntchito mu gypsum
Pakalipano, zinthu zodziwika bwino za gypsum ndizo pulasitala gypsum, gypsum yomangirira, gypsum yopaka, ndi zomatira matailosi.
Gypsum pulasitala ndi pulasitala wapamwamba kwambiri m'kati makoma ndi kudenga.Khoma lopangidwa ndi khomalo ndilobwino komanso losalala, silitaya ufa, limamangirizidwa mwamphamvu kumunsi, lilibe kusweka ndi kugwa, ndipo limakhala ndi ntchito yoyaka moto;
Adhesive gypsum ndi mtundu watsopano wa zomatira zomangira matabwa owala.Zimapangidwa ndi gypsum monga maziko ndi zowonjezera zosiyanasiyana.
Ndizoyenera kulumikizana pakati pa zida zosiyanasiyana zomanga khoma.Imakhala ndi mawonekedwe osagwiritsa ntchito poizoni, osakoma, mphamvu zoyambilira komanso kukhazikitsa mwachangu, komanso kulumikizana kolimba.Ndizinthu zothandizira pomanga matabwa ndi zomangamanga;
Gypsum caulk ndi chodzaza mipata pakati pa matabwa a gypsum ndi chodzaza makoma ndi ming'alu.
Zogulitsa za gypsumzi zimakhala ndi ntchito zosiyanasiyana.Kuphatikiza pa ntchito ya gypsum ndi zowonjezera zowonjezera, nkhani yaikulu ndi yakuti zowonjezera zowonjezera za cellulose ether zimagwira ntchito yaikulu.Chifukwa gypsum amagawidwa mu gypsum anhydrous ndi hemihydrate gypsum, osiyana gypsum ali ndi zotsatira zosiyana pa ntchito mankhwala, kotero thickening, posungira madzi ndi retardation kudziwa khalidwe la gypsum zomangira.Vuto lodziwika bwino la zidazi ndikubowola ndi kung'ambika, ndipo mphamvu zoyambira sizingafikire.Pofuna kuthetsa vutoli, ndikusankha mtundu wa cellulose ndi njira yogwiritsira ntchito pawiri ya retarder.Pachifukwa ichi, methyl kapena hydroxypropyl methyl 30000 nthawi zambiri amasankhidwa.-60000cps, kuchuluka kwake kuli pakati pa 1.5 ‰–2 ‰, mapadi amagwiritsidwa ntchito makamaka posungira madzi komanso kuchepetsa mafuta.
Komabe, ndizosatheka kudalira cellulose ether ngati retarder, ndipo m'pofunika kuwonjezera citric acid retarder kusakaniza ndi kugwiritsa ntchito popanda kukhudza mphamvu yoyamba.
Kusunga madzi nthawi zambiri kumatanthauza kuchuluka kwa madzi omwe angatayike mwachilengedwe popanda kuyamwa kwamadzi kunja.Ngati khomalo ndi louma kwambiri, kuyamwa kwa madzi ndi kutuluka kwachilengedwe pamtunda kumapangitsa kuti zinthuzo ziwonongeke msanga, ndipo kung'ambika ndi kung'ambika kudzachitikanso.
Njira yogwiritsira ntchitoyi imasakanizidwa ndi ufa wouma.Ngati mukukonzekera yankho, chonde onani njira yokonzekera yankho.
Kugwiritsa ntchito utoto wa latex
M'makampani opanga utoto wa latex, hydroxyethyl cellulose iyenera kusankhidwa.Mafotokozedwe a kukhuthala kwapakati ndi 30000-50000cps, omwe amafanana ndi mafotokozedwe a HBR250.Mlingo wamankhwala nthawi zambiri umakhala pafupifupi 1.5 ‰ -2 ‰.Ntchito yaikulu ya hydroxyethyl mu utoto wa latex ndi kukhuthala, kuteteza kusungunuka kwa pigment, kuthandizira kubalalika kwa pigment, kukhazikika kwa latex, ndikuwonjezera kukhuthala kwa zigawozo, zomwe zimathandiza kuti ntchito yomanga ikhale yolimba. .
Nthawi yotumiza: Dec-13-2022