Ntchito ndi kugwiritsa ntchito cellulose ether
Cellulose etherndi sanali maayoni theka-kupanga polima, madzi sungunuka ndi zosungunulira awiri, m'mafakitale osiyana chifukwa ndi udindo osiyana, monga mu mankhwala zomangira, ali ndi gulu zotsatira: ① madzi-kusunga wothandizila ② thickening wothandizila ③ kusanja ④ kupanga filimu ⑤ binder; M'makampani a PVC, ndi emulsifier, dispersant; M'makampani opanga mankhwala, ndi mtundu wa binder komanso kutulutsa pang'onopang'ono mafupa azinthu, chifukwa mapadi amakhala ndi zotsatira zosiyanasiyana, choncho ndi gawo lomwe limagwiritsidwa ntchito kwambiri. Pansipa ndimayang'ana pakugwiritsa ntchito cellulose ether muzinthu zosiyanasiyana zomangira komanso gawo.
1, utoto wa latex:
Mu mzere wa utoto wa latex, kusankhahydroxyethyl cellulose, kutsimikizika kwakukulu kwa mamasukidwe akayendedwe ndi RT3000-50000cps, kumafanana ndi mafotokozedwe a HBR250, mlingo wowerengera nthawi zambiri ndi 1.5 ‰-2 ‰. Udindo waukulu wa hydroxyethyl mu utoto lalabala utoto ndi thicken, kuteteza pigment gelation, zimathandiza kuti kubalalitsidwa pigment, latex, bata, ndipo akhoza kusintha mamasukidwe akayendedwe a zigawo zikuluzikulu, zimathandiza kuti kusanja ntchito yomanga: Hydroxyethyl mapadi ndi yosavuta kugwiritsa ntchito, madzi ozizira ndi otentha amatha kusungunuka, ndipo samakhudzidwa ndi mtengo wa PH. Itha kugwiritsidwa ntchito mosamala pakati pa PI mtengo 2 ndi 12. Njira zogwiritsira ntchito ndi izi:
I. Onjezani mwachindunji:
Panjira iyi, hydroxyethyl cellulose yochedwa ndi nthawi yosungunuka yopitilira mphindi 30 iyenera kusankhidwa. Ndondomeko ndi motere: (1) kukhala mkulu ayenera kudula blender chidebe kuchuluka madzi oyera (2) mkati mphamvu ya anthu anayamba otsika-liwiro kusanganikirana, hydroxyethyl yunifolomu pang'onopang'ono pa nthawi yomweyo kuti agwirizane mu njira ya (3) pitirizani kusonkhezera mpaka zipangizo zonse zonyowa granular (4) kuti agwirizane zina zina ndi zina zamchere (5) chipwirikiti mpaka kwathunthu kusungunuka onse hydroxyethyl, kuwonjezera zigawo zina za chilinganizo, akupera kuti yomalizidwa mankhwala.
ⅱ. Zokhala ndi mowa wamayi:
Njirayi imatha kusankha kusala - kusungunuka kwa cellulose, ndipo imakhala ndi mildew - umboni. Ubwino wa njirayi ndikuti imakhala ndi kusinthasintha kwakukulu ndipo imatha kuwonjezeredwa mwachindunji mu utoto wa latex, njira yokonzekera ndi yofanana ndi masitepe ①-④.
ⅲ, ndi phala ntchito:
Popeza zosungunulira organic ndi osauka solvents (insoluble) kwa hydroxyethyl, angagwiritsidwe ntchito pokonza phala. Zomwe zimagwiritsidwa ntchito kwambiri ndi zosungunulira zamadzimadzi zomwe zimapangidwira muzojambula za latex, monga ethylene glycol, propylene glycol ndi mafilimu opanga mafilimu (monga diethylene glycol butyl acetate), phala la hydroxyethyl cellulose likhoza kuwonjezeredwa mwachindunji ku utoto, mutatha kuwonjezera, pitirizani kusonkhezera mpaka kusungunuka kwathunthu.
2, kukwapula khoma mu putty:
Pakalipano, China ili m'mizinda yambiri yamadzi kukana, kukana swab ya chitetezo cha chilengedwe putty wakhala makamaka anatengedwa mozama ndi anthu, mu zaka zingapo zapitazo, chifukwa putty wopangidwa ndi kumanga guluu kuwala kuwononga mpweya formaldehyde kuwononga thanzi la anthu, nyumba. guluu amapangidwa ndi polyvinyl mowa ndi formaldehyde acetal reaction. Choncho nkhaniyi pang'onopang'ono inathetsedwa ndi anthu, ndi m'malo mwa zinthu zimenezi ndi mapadi efa mndandanda wa mankhwala, ndiko kunena kuti, chitukuko cha zomangira chitetezo chilengedwe, mapadi ndi mtundu okhawo zinthu pakali pano.
M'madzi osamva putty amagawidwa kukhala owuma ufa putty ndi putty phala mitundu iwiri, mitundu iwiri ya putty nthawi zambiri amasankha kusinthidwa methyl cellulose ndi hydroxypropyl methyl mitundu iwiri, kukhuthala kwa kukhuthala kumakhala mu 3000-60000cps pakati pa zoyenera kwambiri, mu gawo lalikulu la cellulose mu putty ndi kusunga madzi, kugwirizana, mafuta ndi zina.
Chifukwa putty chilinganizo cha wopanga aliyense si yemweyo, ena ndi imvi kashiamu, kuwala kashiamu, woyera simenti, ena ndi gypsum ufa, imvi kashiamu, kuwala kashiamu, etc., kotero specification mamasukidwe akayendedwe ndi kulowetsedwa kuchuluka kwa mapadi mwa njira ziwiri. sizili zofanana, kuchuluka kwa kuwonjezera ndi 2 ‰ -3 ‰ kapena choncho.
Pakuwomba khoma kukhala wotopa ndi kumanga kwa ana, maziko a khoma amakhala ndi zotengera zina (khoma la njerwa la kuchuluka kwake kunali 13%, konkire ndi 3-5%), kuphatikiza ndi nthunzi wakunja, kotero ngati mukutopa ndi mwana. Kutaya madzi mofulumira kwambiri, kungachititse kuti mng'alu kapena chodabwitsa monga mungu, kuti mphamvu ya putty yafooke, choncho, pambuyo polowa mapadi ether adzathetsa vutoli. Koma mtundu wa zinthu zodzazitsa, makamaka mtundu wa calcium imvi ndiwofunikanso kwambiri. Chifukwa cha kukhuthala kwakukulu kwa cellulose, kumapangitsanso kusungunuka kwa putty, ndikupewa zochitika zakuyenda komwe kumapachikidwa pakumanga, ndipo kumakhala komasuka komanso kupulumutsa ntchito pambuyo pakupala.
Mu putty ya ufa, ether ya cellulose iyenera kuwonjezeredwa moyenerera ku fakitale, kupanga kwake, kugwiritsa ntchito kwake ndikosavuta, kudzaza zinthu ndi ufa wowonjezera wowuma ukhoza kusakanikirana bwino, kumanga kumakhala kosavuta, kugawa madzi pamalowo, kuchuluka kwake ndi kuchuluka kwake.
3, matope a konkriti:
Mu matope konkire, kwenikweni kukwaniritsa mphamvu mtheradi, ayenera kupanga simenti hydration anachita kwathunthu, makamaka m'chilimwe, pomanga konkire matope kutaya madzi mofulumira, miyeso kwathunthu hydrated pa kuchiritsa madzi, njira imeneyi ndi kuwononga gwero madzi ndi ntchito yovuta, chinsinsi chili pamwamba, madzi ndi hydration akadali si kwathunthu, kotero njira zothetsera vutoli, Onjezani eyiti madzi kusunga wothandizila mapadi mu matope konkire kusankha hydroxypropyl methyl kapena methyl cellulose, kukhuthala makulidwe mu 20000- 60000cps pakati, onjezani 2% -3%. About, mlingo madzi posungira akhoza ziwonjezeke kwa oposa 85%, mu matope ntchito konkire njira ufa youma wogawana wosakaniza pambuyo pakamwa m'madzi kungakhale.
4, gypsum yopaka utoto, gypsum yolumikizira, gypsum yomanga:
Ndikukula kwachangu kwamakampani omanga, kufunikira kwa anthu kwa zida zomangira zatsopano kukuchulukiranso tsiku ndi tsiku, chifukwa chakuwonjezeka kwa kuzindikira kwa anthu zachitetezo cha chilengedwe komanso kupititsa patsogolo ntchito zomanga, zinthu za simenti za gypsum zakhala zikukula mwachangu. Pakali pano katundu wamba wa gesso ali ndi stucco gesso, caking gesso, set gesso, choyika matayala chodikirira.
Plastering pulasitala ndi mtundu wabwino mkati khoma ndi denga pulasitala zakuthupi, ndi misozi khoma ndi wosakhwima ndi yosalala, musagwetse ufa ndi m'munsi chomangira mwamphamvu, palibe akulimbana chodabwitsa, ndipo ali ndi ntchito kupewa moto; Zomatira gypsum ndi mtundu watsopano wa zomangamanga kuwala bolodi zomatira, gypsum monga zakuthupi m'munsi, kuphatikiza zosiyanasiyana kuwonjezera mphamvu pakamwa wothandizila zopangidwa zomatira zakuthupi, ndi oyenera mitundu yonse ya zinthu zomangira zomangira khoma pakati pa chomangira, ndi sanali poizoni. , zoipa, oyambirira mphamvu kusala kudya, kugwirizana ndi bolodi nyumba, chipika yomanga zipangizo zothandizira; Wothandizira kudzaza msoko wa gypsum ndi mbale ya gypsum pakati pa zinthu zodzaza mipata ndi khoma, kudzaza ming'alu.
Zogulitsa za gypsumzi zimakhala ndi ntchito zosiyanasiyana, kuphatikizapo gypsum ndi zowonjezera zowonjezera kuti zigwire ntchito, chinthu chofunika kwambiri ndi zowonjezera zowonjezera za cellulose ether zimagwira ntchito yaikulu. Chifukwa gesso wagawanika kukhala popanda madzi gesso ndi senti ya theka la madzi gesso, osiyana gesso ndi wosiyana ndi zotsatira za ntchito ya mankhwala, kuonjezera wandiweyani, kuteteza madzi, pang'onopang'ono coagulate khalidwe wasankha gesso zomangira. Vuto lodziwika bwino la zinthuzi ndi kusweka kwa ng'oma yopanda kanthu, mphamvu zoyamba sizingachitike, kuti athetse vutoli, ndikusankha mtundu wa cellulose ndi retarder pawiri kugwiritsa ntchito vuto, pankhani iyi, kusankha kwa methyl kapena hydroxypropyl methyl. 30000-60000cps, kuwonjezera kuchuluka ndi 1.5% - 2%. Pakati, cholinga cha cellulose ndikusunga madzi komanso kutsekemera kwapang'onopang'ono kwa condensation.
Komabe, mu izi kudalira mapadi efa monga retarder si mpaka, ayenera kuwonjezera citric asidi retarder pambuyo ntchito wosanganiza sizingakhudze mphamvu koyamba.
Mlingo wosunga madzi nthawi zambiri umatanthawuza kuchuluka kwa madzi omwe amatayika popanda kuyamwa kwamadzi kunja. Ngati khomalo ndi louma, pamwamba pake pamakhala madzi ndipo kutuluka kwachilengedwe kumapangitsa kuti zinthuzo ziwonongeke kwambiri, komanso padzakhala ng'oma yopanda kanthu ndi zochitika zosweka.
Njira yogwiritsira ntchito iyi ndi kusakaniza ufa wouma, ngati kukonzekera yankho kungatanthauze njira yokonzekera yothetsera.
5, insulation matope
Thermal insulation mortar ndi mtundu watsopano wamkati wamkati wamkati wamatenthedwe otenthetsera zida kumpoto kwa China. Ndi khoma zinthu apanga ndi matenthedwe kutchinjiriza zakuthupi, matope ndi binder. Pankhani iyi, cellulose imagwira ntchito yofunika kwambiri pakulumikizana ndikuwonjezera mphamvu. Nthawi zambiri, methyl cellulose yokhala ndi mamasukidwe apamwamba (pafupifupi 10,000 CPS) imasankhidwa, ndipo mlingo umakhala pakati pa 2 ‰ ndi 3 ‰. Njira yosakaniza ufa wowuma imagwiritsidwa ntchito.
6, mawonekedwe othandizira
Wothandizira mawonekedwe ndi HPMC20000cps, chomangira matayala ndi choposa 60000cps, ndipo mawonekedwe ogwiritsira ntchito amagwiritsidwa ntchito ngati thickener, omwe amatha kupititsa patsogolo mphamvu zamakokedwe ndi mphamvu za muvi.
Nthawi yotumiza: Jun-02-2022