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. Chotsatira, ndidzayang'ana pa ntchito ndi ntchito ya cellulose ether mu zipangizo zomangira zotetezera chilengedwe.
1. Mu utoto wa latex
Mu makampani lalabala utoto kusankha hydroxyethyl mapadi, mfundo wamba wofanana mamasukidwe akayendedwe 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 gelation ya pigment, kuthandizira kubalalika kwa pigment, kukhazikika kwa latex, ndikuwonjezera kukhuthala kwa zigawo, zomwe zimathandiza kuti ntchito yomangayo ikhale yolimba: Hydroxyethyl cellulose ndiyosavuta kugwiritsa ntchito. Ikhoza kusungunuka m'madzi ozizira ndi madzi otentha, ndipo sichikhudzidwa ndi pH mtengo. Itha kugwiritsidwa ntchito mosamala pakati pa PI mtengo 2 ndi 12. Njira zogwiritsira ntchito ndi izi:
(1) Onjezani mwachindunji pazopanga:
Kwa njirayi, mtundu wochedwa wa hydroxyethyl uyenera kusankhidwa, ndipo mapadi a hydroxyethyl okhala ndi nthawi yosungunuka yopitilira mphindi 30 amagwiritsidwa ntchito. Masitepe ake ndi awa: ① Ikani madzi enaake mumtsuko wokhala ndi chowotchera chometa ubweya wambiri ② Yambani kugwedezeka mosalekeza pa liwiro lotsika, ndipo nthawi yomweyo onjezerani gulu la hydroxyethyl mu yankho mofanana ③Pitirizani kugwedeza mpaka zonyowa zonse za granular ④Onjezani zowonjezera zina ndi zina zoyambira, ndi zina. ⑤Limbikitsani mpaka zonse Magulu a hydroxyethyl amasungunuka kwathunthu, ndiye Onjezani zigawo zina mu chilinganizo ndikupera mpaka mankhwala omalizidwa.
(2) Okhala ndi chakumwa cha mayi kuti adzagwiritse ntchito mtsogolo:
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.
(3), otchedwa phala kuti agwiritse ntchito mtsogolo:
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 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 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.
Ndikosavuta kuwonjezera pa cellulose ether mu powder putty. Kupanga ndi kugwiritsa ntchito kwake ndikosavuta. Zodzaza ndi zowonjezera zimatha kusakanikirana mofanana mu ufa wouma.
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 ndichakuti madziwo ali pamtunda, ndipo hydration yamkati ikadali yosakwanira, kotero njira yothetsera vutoli ndikuwonjezera othandizira asanu ndi atatu osungira madzi ku konkire yamatope, nthawi zambiri amasankha hydroxypropyl 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. 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 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. Mtondo wotenthetsera kutentha
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
Sankhani HPNC 20000cps kwa wothandizira mawonekedwe, sankhani 60000cps kapena kuposerapo kwa zomatira matailosi, ndipo yang'anani pa thickener mu mawonekedwe othandizira, omwe amatha kupititsa patsogolo mphamvu zamakokedwe ndi mphamvu zotsutsa-muvi.
Nthawi yotumiza: Feb-17-2023