Cellulose ether ndi polima yopanda ionic semi-synthetic, yomwe imasungunuka m'madzi komanso imasungunuka. Ili ndi zotsatira zosiyanasiyana m'mafakitale osiyanasiyana. Mwachitsanzo, mu zipangizo zomangira mankhwala, ili ndi zotsatira zotsatirazi: ① chosungira madzi ② chothirira ③ katundu wolinganiza ④ katundu wopanga filimu ⑤ chomangira; mu makampani opanga mankhwala a polyvinyl chloride, ndi emulsifier ndi dispersant; mu makampani opanga mankhwala, ndi chomangira ndi chomangira. Tulutsani zinthu za mafupa, ndi zina zotero, chifukwa cellulose ili ndi zotsatira zosiyanasiyana zomangira, kotero minda yake yogwiritsidwa ntchito nayonso ndi yayikulu kwambiri. Kenako, ndidzayang'ana kwambiri pa kugwiritsa ntchito ndi ntchito ya cellulose ether mu zipangizo zomangira zoteteza chilengedwe.
1. Utoto wa latex
Mu makampani opanga utoto wa latex, posankha hydroxyethyl cellulose, kufotokozera kwa viscosity yofanana ndi RT30000-50000cps, komwe kumagwirizana ndi specification ya HBR250, ndipo mlingo wofunikira nthawi zambiri umakhala pafupifupi 1.5‰-2‰. Ntchito yayikulu ya hydroxyethyl mu utoto wa latex ndikukhuthala, kuletsa gelation ya utoto, kuthandiza kufalikira kwa utoto, kukhazikika kwa latex, ndikuwonjezera viscosity ya zigawo, zomwe zimathandiza kuti kapangidwe kake kakhale kofanana: Hydroxyethyl cellulose ndi yosavuta kugwiritsa ntchito. Itha kusungunuka m'madzi ozizira ndi madzi otentha, ndipo siyikhudzidwa ndi pH. Itha kugwiritsidwa ntchito mosamala pakati pa PI value 2 ndi 12. Njira zogwiritsira ntchito ndi izi:
(1) Onjezani mwachindunji mu kupanga:
Pa njira iyi, hydroxyethyl cellulose delayed type iyenera kusankhidwa, ndipo hydroxyethyl cellulose yokhala ndi nthawi yosungunuka ya mphindi zoposa 30 imagwiritsidwa ntchito. Njira zake ndi izi: ① Ikani madzi oyera pang'ono mu chidebe chokhala ndi agitator yodula kwambiri ② Yambani kusakaniza mosalekeza pa liwiro lotsika, ndipo nthawi yomweyo onjezerani pang'onopang'ono gulu la hydroxyethyl mu yankho mofanana ③Pitirizani kusakaniza mpaka zinthu zonse za granular zitanyowa ④Onjezani zowonjezera zina ndi zowonjezera zoyambira, ndi zina zotero. ⑤Sakanizani mpaka magulu onse a hydroxyethyl atasungunuka kwathunthu, kenako Onjezani zigawo zina mu fomula ndikupera mpaka chinthu chomalizidwa.
(2) Yokhala ndi mowa wothira madzi kuti mugwiritse ntchito pambuyo pake:
Njira iyi ingasankhe mtundu wa instant, ndipo ili ndi anti-mildew effect cellulose. Ubwino wa njira iyi ndikuti imakhala yosinthasintha kwambiri ndipo imatha kuwonjezeredwa mwachindunji ku utoto wa latex. Njira yokonzekera ndi yofanana ndi masitepe ①-④.
(3), yophikidwa mu phala kuti igwiritsidwe ntchito pambuyo pake:
Popeza zosungunulira zachilengedwe sizisungunuka bwino (sizisungunuka) za hydroxyethyl, zosungunulirazi zingagwiritsidwe ntchito popanga phala. Zosungunulira zachilengedwe zomwe zimagwiritsidwa ntchito kwambiri ndi zakumwa zachilengedwe zomwe zimapezeka mu utoto wa latex, monga ethylene glycol, propylene glycol, ndi zinthu zopangira filimu (monga diethylene glycol butyl acetate). Porridge ya hydroxyethyl cellulose ikhoza kuwonjezeredwa mwachindunji ku utoto. Pitirizani kusakaniza mpaka itasungunuka kwathunthu.
2. Mu putty yokanda pakhoma
Pakadali pano, m'mizinda yambiri m'dziko langa, anthu amaona kuti putty yosalowa madzi komanso yosawononga chilengedwe ndi yofunika kwambiri. Imapangidwa ndi acetal reaction ya vinyl alcohol ndi formaldehyde. Chifukwa chake, anthu amachotsa pang'onopang'ono zinthuzi, ndipo zinthu za cellulose ether zimagwiritsidwa ntchito m'malo mwa zinthuzi. Izi zikutanthauza kuti, popanga zipangizo zomangira zosawononga chilengedwe, cellulose ndiye chinthu chokhacho chomwe chimagwiritsidwa ntchito.
Mu putty yosalowa madzi, imagawidwa m'mitundu iwiri: putty youma ndi putty phala. Pakati pa mitundu iwiri ya putty iyi, methyl cellulose yosinthidwa ndi hydroxypropyl methyl ziyenera kusankhidwa. Mafotokozedwe a viscosity nthawi zambiri amakhala pakati pa 30000-60000cps. Ntchito zazikulu za cellulose mu putty ndi kusunga madzi, kugwirizana ndi mafuta.
Popeza ma formula a putty a opanga osiyanasiyana ndi osiyana, ena ndi imvi calcium, calcium yopepuka, simenti yoyera, ndi zina zotero, ndipo ena ndi ufa wa gypsum, imvi calcium, calcium yopepuka, ndi zina zotero, kotero kufotokozera, kukhuthala ndi kulowa kwa cellulose m'ma formula awiriwa nakonso n'kosiyana. Kuchuluka komwe kumawonjezedwa ndi pafupifupi 2‰-3‰.
Popanga putty yokanda khoma, popeza pamwamba pa khoma pali madzi enaake (kuchuluka kwa madzi olowa pakhoma la njerwa ndi 13%, ndipo kuchuluka kwa madzi olowa pa konkire ndi 3-5%), kuphatikiza ndi kutuluka kwa madzi kuchokera kunja, ngati putty itataya madzi mwachangu kwambiri, izi zipangitsa kuti pakhale ming'alu kapena kuchotsedwa kwa ufa, zomwe zidzafooketsa mphamvu ya putty. Chifukwa chake, kuwonjezera cellulose ether kudzathetsa vutoli. Koma mtundu wa filler, makamaka mtundu wa phulusa la calcium, nawonso ndi wofunikira kwambiri. Chifukwa cha kuchuluka kwa ma cellulose, kuyandama kwa putty kumawonjezeka, ndipo kutsika kwa madzi panthawi yomanga kumapewedwanso, ndipo kumakhala kosavuta komanso kopulumutsa ntchito mukamaliza kukanda.
Ndikosavuta kuwonjezera cellulose ether mu ufa wa putty. Kupanga kwake ndi kugwiritsa ntchito kwake ndikosavuta. Chodzaza ndi zowonjezera zimatha kusakanikirana mofanana mu ufa wouma.
3. Simenti yolimba
Mu matope a konkriti, kuti apeze mphamvu yokwanira, simenti iyenera kukhala ndi madzi okwanira. Makamaka nthawi yachilimwe yomanga, matope a konkriti amataya madzi mwachangu kwambiri, ndipo miyeso ya madzi okwanira imagwiritsidwa ntchito kusunga ndi kuwaza madzi. Kutaya zinthu ndi ntchito yosasangalatsa, chofunikira ndichakuti madzi azikhala pamwamba pa nthaka yokha, ndipo madzi amkati sakukwanira, kotero yankho la vutoli ndikuwonjezera zinthu zisanu ndi zitatu zosungira madzi ku konkriti ya konkriti, nthawi zambiri sankhani hydroxypropyl methyl kapena methyl Cellulose, kuchuluka kwa kukhuthala kuli pakati pa 20000-60000cps, ndipo kuchuluka kowonjezera ndi 2%-3%. Kuchuluka kwa madzi osungira madzi kumatha kuwonjezeredwa mpaka kupitirira 85%. Njira yogwiritsira ntchito mu konkriti ya konkriti ndikusakaniza ufa wouma mofanana ndikutsanulira m'madzi.
4. Mu plaster gypsum, bonding gypsum, caulking gypsum
Chifukwa cha kukula kwa makampani omanga, anthu akufunikiranso zipangizo zatsopano zomangira zomwe zikuchulukirachulukira tsiku ndi tsiku. Chifukwa cha kuchuluka kwa chidziwitso cha anthu chokhudza kuteteza chilengedwe komanso kupititsa patsogolo ntchito yomanga, zinthu zopangidwa ndi gypsum zokhazikika zakula mofulumira. Pakadali pano, zinthu zodziwika kwambiri za gypsum ndi plastering gypsum, bonded gypsum, inlaid gypsum, ndi tile glue.
Kupaka pulasitala gypsum ndi chinthu chapamwamba kwambiri chopaka pulasitala mkati mwa makoma ndi padenga. Pakhoma lopakidwa ndi losalala komanso losalala. Chomatira chatsopano cha bolodi la nyumba ndi chinthu chomata chopangidwa ndi gypsum ngati maziko ndi zowonjezera zosiyanasiyana. Ndi choyenera kumangirira pakati pa zipangizo zosiyanasiyana zosapanga dzimbiri. Sichimayambitsa poizoni, Sichimanunkha, chimakhala cholimba msanga komanso chimakhazikika mwachangu, chimakhala cholimba komanso chili ndi makhalidwe ena, ndi chinthu chothandizira pa matabwa omangira ndi zomangamanga; chotchingira gypsum ndi chodzaza mipata pakati pa matabwa a gypsum ndi chodzaza chokonzera makoma ndi ming'alu.
Zipangizo za gypsum izi zili ndi ntchito zosiyanasiyana. Kuwonjezera pa ntchito ya gypsum ndi zodzaza zina, nkhani yaikulu ndi yakuti zowonjezera za cellulose ether zimagwira ntchito yotsogola. Popeza gypsum imagawidwa mu gypsum ya anhydrous ndi hemihydrate gypsum, gypsum yosiyana imakhala ndi zotsatira zosiyana pa magwiridwe antchito a chinthucho, kotero kukhuthala, kusunga madzi ndi kuchedwa kumatsimikizira ubwino wa zipangizo zomangira gypsum. Vuto lofala la zipangizozi ndi kusweka ndi kusweka, ndipo mphamvu yoyamba siingapezeke. Kuti tithetse vutoli, ndikusankha mtundu wa cellulose ndi njira yogwiritsira ntchito compound ya retarder. Pachifukwa ichi, methyl kapena hydroxypropyl methyl 30000 nthawi zambiri amasankhidwa. -60000cps, kuchuluka kowonjezera ndi 1.5%–2%. Pakati pawo, cellulose imayang'ana kwambiri pakusunga madzi ndi kuletsa mafuta.
Komabe, n'zosatheka kudalira cellulose ether ngati retarder, ndipo ndikofunikira kuwonjezera citric acid retarder kuti musakanize ndikugwiritsa ntchito popanda kukhudza mphamvu yoyambirira.
Kusunga madzi nthawi zambiri kumatanthauza kuchuluka kwa madzi omwe angatayike mwachilengedwe popanda kuyamwa madzi akunja. Ngati khoma lili louma kwambiri, kuyamwa madzi ndi kusungunuka kwa madzi pansi pa nthaka kudzapangitsa kuti zinthuzo zitayike madzi mwachangu kwambiri, ndipo mabowo ndi ming'alu zidzachitikanso.
Njira yogwiritsira ntchito iyi imasakanizidwa ndi ufa wouma. Ngati mukukonzekera yankho, chonde onani njira yokonzekera yankho.
5. Chotenthetsera cha kutentha
Chophimba choteteza makoma ndi mtundu watsopano wa zinthu zotetezera makoma mkati mwa dera lakumpoto. Ndi zinthu zotetezera makoma zopangidwa ndi zinthu zotetezera makoma, chophimba makoma ndi chomangira. Mu zinthuzi, cellulose imagwira ntchito yofunika kwambiri pakulumikizana ndikuwonjezera mphamvu. Nthawi zambiri sankhani methyl cellulose yokhala ndi kukhuthala kwakukulu (pafupifupi 10000eps), mlingo nthawi zambiri umakhala pakati pa 2‰-3‰), ndipo njira yogwiritsira ntchito ndi kusakaniza ufa wouma.
6. Wothandizira mawonekedwe
Sankhani HPNC 20000cps ya chogwirizira cholumikizira, sankhani 60000cps kapena kuposerapo pa chogwirira cha matailosi, ndipo yang'anani kwambiri pa chokhuthala chomwe chili mu chogwirizira cholumikizira, chomwe chingawongolere mphamvu yokoka ndi mphamvu yotsutsana ndi mivi.
Nthawi yotumizira: Feb-17-2023