Ma cellulose ether ndi polima osapangidwa ndi ionic semisynthetic, omwe amasungunuka m'madzi komanso osungunuka. Zili ndi zotsatira zosiyana m'mafakitale osiyanasiyana. Mwachitsanzo, muzinthu zomangira mankhwala, zimakhala ndi zotsatirazi:
① Wosunga madzi
②Wonenepa
③Kukweza
④Kupanga mafilimu
⑤ Binder
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.
1. Mu mafakitale utoto utoto kusankha hydroxyethyl mapadi, mfundo zonse kukhuthala ofanana kukhuthala ndi RT30000-50000cps, lolingana ndi mfundo za HBR250, ndi buku mlingo zambiri za 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. : Hydroxyethyl cellulose ndiyosavuta kugwiritsa ntchito. Ikhoza kusungunuka m'madzi ozizira kapena madzi otentha, ndipo sichikhudzidwa ndi pH mtengo. Itha kugwiritsidwa ntchito mosamala pakati pa PI mtengo 2 ndi 12. Njira zogwiritsira ntchito ndi izi:
I. Onjezani mwachindunji pakupanga: Kwa njirayi, mtundu wochedwa wa hydroxyethyl cellulose uyenera kusankhidwa, ndipo hydroxyethyl cellulose yokhala ndi nthawi yosungunuka yopitilira mphindi 30 imagwiritsidwa ntchito. Madzi oyeretsedwa ochulukira mkati mkamwa ②Yambani kusonkhezera pang'onopang'ono mosalekeza, ndipo nthawi yomweyo onjezerani hydroxyethyl mu yankho mofanana ③Pitirizani kusonkhezera mpaka zida zonse za granular zinyowetsedwa ④Onjezani zowonjezera zina ndi zina zamchere, ndi zina zotero. ⑤Limbikitsani mpaka magulu onse a hydroxyethyl atakhala kwathunthu kusungunuka, ndiye kuwonjezera zigawo zina mu chilinganizo, ndi pogaya mpaka mankhwala omalizidwa.
Ⅱ. Zokhala ndi chakumwa cha mayi kuti mugwiritse ntchito mtsogolo: Njira iyi imatha kusankha cellulose waposachedwa, yomwe imakhala ndi anti-mildew effect. 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 mtsogolo: Popeza zosungunulira za organic ndi zosungunulira zosasungunuka (zosasungunuka) za hydroxyethyl, zosungunulirazi zitha kugwiritsidwa ntchito pokonza 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, putty yoteteza zachilengedwe yomwe ili yosamva madzi komanso yosamva kukwapula m'mizinda yambiri m'dziko langa yayamikiridwa kwambiri ndi anthu. Guluu wathanzi, womanga amapangidwa ndi acetalizing polyvinyl mowa ndi formaldehyde. Choncho, nkhaniyi pang'onopang'ono inathetsedwa ndi anthu, ndi mapadi etere mndandanda mankhwala ntchito m'malo 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 zazikulu za cellulose mu putty ndikusunga madzi, kugwirizana ndi kudzoza. 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 mapadi 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 ofunika kwambiri. Chifukwa cha kukhuthala kwakukulu kwa cellulose, kuyanika kwa putty kumakulitsidwanso, ndipo kugwedezeka kwapanthawi yomanga kumapewedwanso, ndipo kumakhala komasuka komanso kopulumutsa ntchito pambuyo pakupala. Ndikosavuta kuwonjezera pa cellulose ether mu powder putty. Kupanga ndi kugwiritsa ntchito kwake ndikosavuta. Zodzaza ndi zowonjezera zimatha kusakanikirana mofanana mu ufa wouma.
3. Mtondo wa konkire: Mu matope a konkire, kuti mukwaniritse mphamvu zazikulu, 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. Njira yoyamba ndiyo kuwononga madzi ndi kusokoneza ntchito. Mfundo yofunika kwambiri ndi yakuti madzi ali pamtunda, ndipo hydration yamkati imakhala yosakwanira. Choncho, njira yothetsera vutoli ndi kuwonjezera zida zisanu ndi zitatu zosungira madzi ku konkire yamatope. Nthawi zambiri, hydroxypropyl imasankhidwa. Methyl kapena methyl cellulose, mawonekedwe a viscosity ali pakati pa 20000-60000cps, ndipo kuchuluka kwake ndi 2% -3%. Mlingo wosungira madzi ukhoza kuwonjezeka kufika pa 85%. Njira yogwiritsira ntchito konkire yamatope ndikusakaniza ufa wouma mofanana ndikutsanulira m'madzi.
4. Populasitala gypsum, gypsum yomangira, ndi caulking gypsum: Ndi chitukuko chofulumira chamakampani omanga, kufuna kwa anthu zomangira zatsopano kukuchulukiranso. Chifukwa chakuchulukirachulukira kwa anthu pakudziwitsa zachitetezo cha chilengedwe komanso kuwongolera kosalekeza kwa zomangamanga, zida za simenti zopangidwa ndi Gypsum zapangidwa 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 lopakidwa nalo ndi labwino komanso losalala. Chomatira chatsopano cha board board ndi chinthu chomata chopangidwa ndi gypsum monga maziko ake ndi zowonjezera zosiyanasiyana. Ndizoyenera kulumikizana pakati pa zida zosiyanasiyana zomanga khoma. Sichiwopsezo, Chopanda fungo, mphamvu yoyambirira komanso kukhazikika mwachangu, kulumikizana mwamphamvu ndi mawonekedwe ena, ndizinthu zothandizira matabwa omangira ndi kumanga chipika; gypsum caulking agent ndi chodzaza mipata pakati pa matabwa a gypsum ndi chokonzera 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. Popeza gypsum amagawidwa mu gypsum anhydrous ndi hemihydrate gypsum, osiyana gypsum ali ndi zotsatira zosiyana pa ntchito ya 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, ndalama zowonjezera ndi 1.5% -2%. Pakati pawo, cellulose imayang'ana kwambiri kusunga madzi komanso kuchepetsa mafuta. Komabe, ndizosatheka kudalira cellulose ether monga 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 kwamadzi ndi kutuluka kwachilengedwe pamtunda kumapangitsa kuti zinthuzo zitaya madzi mwachangu, ndipo kung'ambika ndi kung'ambika kumachitikanso. Njira yogwiritsira ntchitoyi imasakanizidwa ndi ufa wouma. Ngati mukukonzekera yankho, chonde onani njira yokonzekera yankho.
5. Insulation mortar Insulation mortar ndi mtundu watsopano wa zida 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 agent Sankhani HPNC 20,000 cps ngati mawonekedwe ogwiritsira ntchito, sankhani 60,000 cps kapena kuposerapo ngati zomatira matailosi, ndipo yang'anani pa thickening wothandizira mu mawonekedwe othandizira, omwe amatha kupititsa patsogolo mphamvu zamakokedwe ndi mphamvu zotsutsa-muvi. Amagwiritsidwa ntchito ngati chosungira madzi pomangirira matailosi kuti tilepheretse kutaya madzi mwachangu komanso kugwa.
Nthawi yotumiza: Feb-18-2023