Cellulose etrars ndi mtundu wa ma polymer polic amasinthidwa ku cellulose wachilengedwe. Amagwiritsidwa ntchito pomanga zida zomangira, makamaka m'magawo a simenti. Mphamvu ya cellulose pa cental hydratem njira imawonekeranso makamaka: Kubalalika kwa simenti tinthu, kusungunuka kwamadzi, komanso kulimbikitsa kwa morphology zopangidwa ndi simenti.
1. Kuyambitsa kwa simenti hydration
Njira ya hydration ya simenti ndi mndandanda wazovuta zamagetsi komanso zamankhwala pakati pa simenti ndi madzi. Izi zimapangitsa kuti simenti ikhale yolimba pang'onopang'ono kuti apange mawonekedwe olimba, pambuyo pake amapanga zinthu zamagetsi monga calcium silmium hydrate (Ch) ndi calcium hydroxide (Ch). Panthawi imeneyi, kuchitira nkhanza zomwe simenti, madzi ndi kusungidwa kwamadzi kwa slorry, ndipo mapangidwe azomera hydrate amakhudzanso mphamvu ndi kukhazikika kwa konkriti yomaliza.
2. Ligwirira ntchito ya zochita za cellulose et
Ma cellulose ether amachita mbali yofunika kwambiri yamankhwala ndi mankhwala muyeso hydraction. Cellulose ether imakhudzanso simenti ya simenti m'njira ziwiri: chimodzi ndi chofatsa ndikugawa madzi ndi kusintha kwamadzi mu simenti slurry; Zina ndi zomwe zimakhudza kubalalitsidwa ndi kuphatikizika kwa tinthu tambiri.
Kuwongolera chinyezi ndi kusungidwa kwamadzi
Cellulose eder amatha kusintha madzi osungira mapiko a simenti. Chifukwa cha hydrophilicity yamphamvu, cellulose ether imatha kupanga yankho lokhazikika m'madzi, lomwe limatha kuyamwa ndikusunga chinyezi. Kutha kwa madzi uku ndikofunikira pakuchepetsa ming'alu yoyambitsidwa chifukwa cha kuchepa kwa madzi mwachangu mu konkriti koyambirira. Makamaka mu malo owuma kapena malo omanga kutentha kwambiri, ma cellulose ether amatha kupewa bwino madzi mwachangu ndikuwonetsetsa kuti kuchuluka kwamadzi mu simenti kumakhala kokwanira kuchirikiza mankhwalawa.
Rhelogy ndi kukula
Cellulose eders amathanso kusintha zomwe simelogy za simenti. Pambuyo kuwonjezera ether ether, kusinthana kwa simenti slorry kumawonjezera kwambiri. Izi ndizomwe zimadziwika kuti ndi ma cellulose ethel mamolekyulu m'madzi. Molekyumu wa nthawi yayitali uyu amatha kuletsa kuyenda kwa tinthu tating'onoting'ono tambiri, potero kuwonjezera mamasukidwe ndi kusasinthika kwa slurry. Katunduyu ndi wofunikira makamaka pantchito monga zomata ndi matayala, monga zimalepheretsa matope a sile kuchokera kumayendedwe otalika kwambiri popereka ntchito zomanga.
Kuzengereza hydration ndi kusintha kukhazikitsa nthawi
Cellulose ether mutha kuchedwetsa mankhwala hydration zomwe simenti ya simenti ndikuwonjezera nthawi yoyambirira ndi nthawi yomaliza ya simenti slorry. Izi zimachitika chifukwa mamolekyulu a ethel ether etherged pamtunda wa simenti tinthu, ndikupanga chotchinga chomwe chimalepheretsa kulumikizana mwachindunji pakati pa madzi ndi simenti. Mwa kuchedwetsa kupeza nthawi, cellosese yokwanira imatha kupititsa patsogolo mgwirizano womanga ntchito, kupereka nthawi yopangana nthawi yambiri kuti musinthe ndi kusintha.
3. Zotsatira za mawonekedwe a zinthu za simenti
Kukhalapo kwa cellulose edell kumakhudzanso micrestructuctuctuctuctuctuction zinthu zamitundu ya simenti. Kafukufuku wasonyeza kuti morphology ya calcium silmium scharter hydrate (CSH) gel asintha pambuyo kuwonjezera ma cellulose ether ether ether. Cellulose ethel mamolekyulu amatha kukhudza kapangidwe ka CSS, ndikupangitsa kuti ikhale yomasuka. Kapangidwe kameneka kamatha kuchepetsa mphamvu zoyambirira, komanso kumathandizanso kukonza zinthuzo.
Cellulose eders amathanso kuchepetsa mapangidwe a StTringete Pazomera. Popeza ma cellulose ether amasula kuchuluka kwa mankhwala othandizira, mapangidwe a Sttherite mu simenti amachepetsedwa, motero kuchepetsa nkhawa zomwe zimachitika chifukwa cha kuchuluka kwa kuchuluka kwa ntchito.
4. Zotsatira zakukula
Cellulose eders amathandizanso kwambiri kukulitsa mphamvu yakutukuka kwa zinthu za simenti. Chifukwa cellose edle adabweza Mlingo wa simenti, chitukuko choyambirira cha pasitepe simenti nthawi zambiri amakhala pang'onopang'ono. Komabe, monga momwe mankhwala ogwirizira amapitirira, kukhazikitsidwa kwa ma eleluse ethel ethel elelulogy ndi hydrac mankhwala pang'ono kumatha kutuluka pang'onopang'ono, komwe kungathandize kukonza mphamvu m'gawo pambuyo pake.
Tiyenera kudziwa kuti kuchuluka kowonjezeredwa ndi mtundu wa ethel ether kumakhala ndi vuto lililonse. Kuchuluka kwa ether koyenera kumatha kupititsa patsogolo ntchito zomanga ndikuchulukitsa mphamvu pambuyo pake, koma kugwiritsa ntchito kwambiri kumatha kuchepa kwa zinthu zoyambirira zazinthu za simenti ndikukhumudwitsa zomaliza. Chifukwa chake, mu ntchito zothandiza, mtundu ndi mlingo wa ethel ether umayenera kukhala wokonzeka kukhala ndi zofunikira malinga ndi zofunikira zapadera.
Cellulose ether umakhudza njira zamagetsi komanso simenti ya simenti popangitsa kuti zinthu zisasunge madzi, kusintha ma hydration kukula, komanso kukhudza mawonekedwe a zinthu hydrate. Ngakhale kuti cellulose eyange zitha kuchititsa mphamvu yoyambirira, imatha kusintha kukhazikika ndi kulimba kwa konkriti munthawi yayitali. Kuphatikiza kwa ethel ether kungathandizenso kulimbitsa mphamvu, makamaka mu zochitika zantchito zomwe zimafuna kuti nthawi yayitali ogwira ntchito ndi zofunika madzi. Zili ndi zabwino zosatheka. M'mayiko enieni a usilikali, kusankha koyenera kwa mtundu ndi mlingo wa ethel ether amatha kusamala mphamvu, zomangamanga ndi zofuna za zinthuzo.
Post Nthawi: Sep-27-2024