Ma cellulose ether ndi polima osapangidwa ndi ionic semisynthetic, omwe amasungunuka m'madzi komanso osungunuka.Zili ndi zotsatira zosiyana m'mafakitale osiyanasiyana.Mwachitsanzo, mu zipangizo zomangira mankhwala, ali ndi zotsatirazi zotsatira gulu: ① madzi posungira wothandizira ② thickener ③ kusanja katundu ④ mafilimu kupanga katundu ⑤ binder;mu makampani a polyvinyl chloride, ndi emulsifier ndi dispersant;mu makampani opanga mankhwala, ndi binder ndi buffering agent Tulutsani zida za mafupa, ndi zina zotero, chifukwa mapadi ali ndi zotsatira zosiyanasiyana, kotero minda yake yogwiritsira ntchito ndi yochuluka kwambiri.Kenako, ndimayang'ana kwambiri kugwiritsa ntchito ndi ntchito ya cellulose ether muzomangamanga zoteteza chilengedwe.
1. Mu utoto wa latex
M'makampani opanga utoto wa latex, hydroxyethyl cellulose iyenera kusankhidwa.Matchulidwe ambiri a mamasukidwe akayendedwe ndi RT30000-50000cps, ndipo mlingo wotchulidwa nthawi zambiri ndi 1.5 ‰-2 ‰.Ntchito yaikulu ya hydroxyethyl mu utoto wa latex ndi kukhuthala, kuteteza kutsekemera kwa pigment, kuthandizira kubalalitsidwa, latex, ndi kukhazikika kwa pigment, ndi kuonjezera kukhuthala kwa chigawocho, chomwe chimathandiza kuti ntchito yomangamanga ikhale yabwino: hydroxyethyl Ethyl cellulose ndiyosavuta kugwiritsa ntchito.Ikhoza kusungunuka m'madzi ozizira ndi madzi otentha, ndipo sichikhudzidwa ndi pH mtengo.Itha kugwiritsidwa ntchito pakati pa pH ya 2 ndi 12. Pali njira zitatu zogwiritsira ntchito:
I. Onjezani mwachindunji pazopanga:
Njira imeneyi ayenera kusankha hydroxyethyl mapadi anachedwa mtundu - hydroxyethyl mapadi ndi kuvunda nthawi ya mphindi 30.Njira zake ndi izi: ① Onjezani madzi enaake mumtsuko wokhala ndi chowotcha chometa ubweya wambiri ② Yambani kugwedezeka mosalekeza pa liwiro lotsika, ndipo nthawi yomweyo onjezerani pang'onopang'ono gulu la hydroxyethyl mu yankho mofanana ③Pitirizani kugwedeza. mpaka zida zonse za granular zinyowetsedwa ④Onjezani zowonjezera zina ndi zowonjezera zowonjezera, ndi zina zotero. ⑤Limbikitsani mpaka magulu onse a hydroxyethyl asungunuke, kenaka Onjezani zigawo zina mu fomula ndikupera mpaka mankhwala omalizidwa.
Ⅱ.Zokhala ndi mowa wamayi kuti mudzagwiritse ntchito pambuyo pake:
Njirayi imatha kusankha mtundu wanthawi yomweyo, ndipo imakhala ndi anti-mildew effect cellulose.Ubwino wa njirayi ndikuti umakhala ndi kusinthasintha kwakukulu ndipo ukhoza kuwonjezeredwa mwachindunji ku utoto wa latex.Njira yokonzekera ndi yofanana ndi masitepe ①-④.
Ⅲ.Konzani phala kuti mudzagwiritse ntchito pambuyo pake:
Popeza organic solvents ndi osauka solvents (insoluble) kwa hydroxyethyl, zosungunulira izi angagwiritsidwe ntchito kupanga phala.Zosungunulira zomwe zimagwiritsidwa ntchito kwambiri ndi zamadzimadzi zomwe zimapangidwa ndi utoto wa latex, monga ethylene glycol, propylene glycol, ndi opanga mafilimu (monga diethylene glycol butyl acetate).Phala la hydroxyethyl cellulose likhoza kuwonjezeredwa mwachindunji ku utoto.Pitirizani kusonkhezera mpaka kusungunuka kwathunthu.
2. Pakhoma scraping putty
Pakali pano, m'mizinda yambiri m'dziko langa, putty wosamva madzi komanso wosapaka malo otetezedwa ndi chilengedwe wakhala amtengo wapatali kwambiri ndi anthu.Amapangidwa ndi acetal reaction ya vinyl mowa ndi formaldehyde.Choncho, nkhaniyi imachotsedwa pang'onopang'ono ndi anthu, ndipo mankhwala a cellulose ether amagwiritsidwa ntchito m'malo mwa nkhaniyi.Izi zikutanthauza kuti, pakupanga zida zomangira zachilengedwe, cellulose ndiyo yokhayo.
Mu putty yosagwira madzi, imagawidwa m'mitundu iwiri: ufa wowuma wa putty ndi putty phala.Mwa mitundu iwiriyi ya putty, methyl cellulose yosinthidwa ndi hydroxypropyl methyl iyenera kusankhidwa.Mawonekedwe a viscosity nthawi zambiri amakhala pakati pa 30000-60000cps.Ntchito yayikulu ya cellulose mu putty ndikusunga madzi, kulumikiza, kudzoza ndi zina zotero.
Popeza makonzedwe a putty a opanga osiyanasiyana ndi osiyana, ena ndi imvi kashiamu, kashiamu wopepuka, simenti yoyera, etc., ndipo ena ndi gypsum ufa, imvi kashiamu, calcium kuwala, etc., kotero specifications, mamasukidwe akayendedwe ndi malowedwe a cellulose mu njira ziwiri ndi zosiyana.Ndalama zomwe zawonjezeredwa ndi pafupifupi 2 ‰-3 ‰.
Pomanga khoma scraping putty, popeza m'munsi mwa khoma ali ndi mlingo wina wa mayamwidwe madzi (mayamwidwe madzi mayamwidwe khoma la njerwa ndi 13%, ndi mlingo mayamwidwe madzi konkire ndi 3-5%), kuphatikiza ndi evaporation ya dziko lakunja, ngati putty kutaya madzi mofulumira kwambiri , Zidzatsogolera ku ming'alu kapena kuchotsa ufa, zomwe zidzafooketsa mphamvu ya putty.Choncho, kuwonjezera cellulose ether kuthetsa vutoli.Koma khalidwe la filler, makamaka khalidwe la phulusa calcium ndi zofunika kwambiri.Chifukwa cha kukhuthala kwakukulu kwa cellulose, kuyanika kwa putty kumakulitsidwanso, ndipo kugwedezeka kwapanthawi yomanga kumapewedwanso, ndipo kumakhala komasuka komanso kopulumutsa ntchito pambuyo pakupala.
3. Dongo la konkire
Mu matope a konkire, kuti mukwaniritse mphamvu zomaliza, simenti iyenera kukhala ndi madzi okwanira.Makamaka pomanga chilimwe, matope a konkire amataya madzi mofulumira kwambiri, ndipo miyeso ya hydration yathunthu imagwiritsidwa ntchito kusunga ndi kuwaza madzi.Kuwonongeka kwazinthu ndi ntchito yovuta, chinsinsi ndi chakuti madzi ali pamtunda, ndipo hydration yamkati ikadali yosakwanira, kotero njira yothetsera vutoli ndikuwonjezera hydroxypropyl methylcellulose kapena methylcellulose ku konkire yamatope, Kufotokozera kwa viscosity kuli pakati. 20000-60000cps, kuwonjezera kuchuluka ndi za 2 ‰–3 ‰, ndi mlingo madzi posungira akhoza ziwonjezeke kwa oposa 85%.Njira yogwiritsira ntchito konkire yamatope ndikuwonjezera madzi pambuyo pa ufa wowuma wosakanikirana mofanana.
4. Popaka gypsum, kumanga gypsum, caulking gypsum
Ndi chitukuko chofulumira cha ntchito yomanga, kufunikira kwa anthu kwa zomangira zatsopano kukukulirakuliranso tsiku ndi tsiku.Chifukwa chakuchulukirachulukira kwa anthu pakuzindikira zachitetezo cha chilengedwe komanso kuwongolera mosalekeza kwa zomangamanga, zida za simenti za gypsum zakula mwachangu.Pakalipano, zinthu zodziwika bwino za gypsum ndizo pulasitala gypsum, gypsum yomangirira, gypsum yopaka, ndi zomatira matailosi.
Plastering gypsum ndi pulasitala wapamwamba kwambiri pamakoma amkati ndi kudenga.Khoma lopangidwa ndi khomalo ndi labwino komanso losalala, silimagwetsa ufa, limamangirizidwa mwamphamvu kumunsi, lilibe kusweka ndi kugwa, ndipo limagwira ntchito yoletsa moto;gypsum yomangidwa ndi mtundu watsopano womatira pa bolodi lowala ndi chinthu chomata chopangidwa ndi gypsum ngati maziko ndikuwonjezera zowonjezera zosiyanasiyana.Ndizoyenera kulumikizana pakati pa zida zosiyanasiyana zomanga khoma.Sichiwopsezo, chopanda pake, Zinthu monga mphamvu zoyamba, kukhazikika mwachangu, ndi kulumikizana kolimba, ndizinthu zothandizira mapanelo omangira ndi zomangamanga;gypsum caulking agent ndi chodzaza mipata pakati pa mapanelo 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.
5. Mtondo wotsekemera wotentha
Insulation mortar ndi mtundu watsopano wazinthu zotchingira khoma m'chigawo chakumpoto.Ndi khoma lazinthu zopangidwa ndi zinthu zotsekemera, matope ndi binder.Pankhani iyi, 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 ndikusakaniza ufa wowuma.
6. Interface wothandizira
Zomatira za matailosi ziyenera kukhala pamwamba pa 60,000cps, ndipo ziyenera kugwiritsidwa ntchito ngati thickener mu mawonekedwe othandizira, zomwe zingathe kupititsa patsogolo mphamvu zowonongeka ndi mphamvu zotsutsa-muvi.
Nthawi yotumiza: Jan-31-2023