Ma cellulose ether ndi polymer ya cellulose semi-synthetic high molecular polymer, yomwe imasungunuka m'madzi komanso kusungunuka.Zili ndi zotsatira zosiyana m'mafakitale osiyanasiyana.Mwachitsanzo, muzinthu zomangira mankhwala, zimakhala ndi zotsatirazi:
①Wosunga madzi ②Thickener ③Leveling katundu ④Katundu wopanga mafilimu ⑤Binder
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.Zotsatirazi zikuyang'ana pa ntchito ndi ntchito ya cellulose ether mu zipangizo zosiyanasiyana zomangira.
(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 motetezeka pakati pa PI mtengo 2 ndi 12. Njira zogwiritsira ntchito ndi izi:
I. Add mwachindunji kupanga: njira imeneyi ayenera kusankha hydroxyethyl mapadi kuchedwa mtundu, ndi mapadi hydroxyethyl ndi Kutha nthawi ya mphindi 30, njira zake ntchito ndi motere:
① Konzani kuchuluka kwa madzi oyeretsedwa mumtsuko wokhala ndi chowotcha chometa ubweya wambiri
②Yambani kugwedezeka mosalekeza pa liwiro lotsika, ndipo nthawi yomweyo onjezerani pang'onopang'ono hydroxyethyl ku yankho mofanana.
③Pitirizani kugwedeza mpaka zida zonse za granular zinyowetsedwa
④ Onjezani zina zowonjezera ndi zoyambira, ndi zina.
⑤ Limbikitsani mpaka magulu onse a hydroxyethyl atasungunuka kwathunthu, kenaka yikani zigawo zina mu ndondomekoyi, ndikupera mpaka mankhwala atha.
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 pambuyo pake: Popeza zosungunulira za organic ndi zosungunulira zosakwanira (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, 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 wosamva madzi, imagawidwa m'mitundu iwiri: ufa wowuma 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 cellulose ether mu powder putty.Kupanga ndi kugwiritsa ntchito kwake ndikosavuta.Zodzaza ndi zowonjezera zimatha kusakanikirana mofanana mu ufa wouma.
(3) Dongo la konkriti:
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, gypsum yomangika, gypsum yokhotakhota:
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.Ndi oyenera kugwirizana pakati pa zinthu zosiyanasiyana zomanga khoma zipangizo.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.
Ma gypsum awa ali ndi ntchito zosiyanasiyana.Kuphatikiza pa ntchito ya gypsum ndi zowonjezera zowonjezera, vuto lalikulu ndiloti 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 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 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 wosungunula matenthedwe
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) mawonekedwe 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.Amagwiritsidwa ntchito ngati chosungira madzi pomangirira matailosi kuti tilepheretse kutaya madzi mwachangu komanso kugwa.
Nthawi yotumiza: Feb-16-2023