Udindo wa hydroxpyl methylcellulose mu matope a simenti ndi gypsum

Hydroxypropyl methylcellulose (hpmc) ndi polymer polymer, yomwe imagwiritsidwa ntchito kwambiri pakumanga, makamaka mu matope a simenti ndi gypsum - yowonjezerapo. Zimatha kukonza magwiridwe antchito, kusintha zomanga, ndikuwonjezera kulimba komanso kuterera kwa malonda.

1. Udindo wa simenti
Matope a simenti ndi zinthu zomangamanga zopangidwa ndi simenti, madzi abwino, madzi ndi zowonjezera, zomwe zimagwiritsidwa ntchito kukhoma, pansi ndi zomanga zina zomangamanga. Udindo waukulu wa HPMC mu matope a simenti imaphatikizanso mbali zotsatirazi:

Sinthani Kuthekera
Mukamagwiritsa ntchito matope a simenti, mafakisoni ndi madzi ndi mfundo zazikuluzikulu zomwe zimatsimikizira zomanga. Monga polymer yosungunuka yamadzi, hpmc imatha kupanga matope a matope, kusintha madzimadzi, ndikuwonjezera kapangidwe kake ndi kuthekera kwake. Matope a simenti pogwiritsa ntchito HPMC ndi yowoneka bwino, imatha kuphatikizidwa mosavuta kukhoma, ndipo sikophweka kungokhala, zomwe zimakhala zosavuta kungomanga ogwira ntchito.

Kuchedwa kwa cemement hydrate machitidwe ndikuwonjezera nthawi yotseguka
Kuchita kwa simenti ndi njira yofunika kwambiri ya simenti. HPMC imatha kupanga mawonekedwe a Colloidal mu matope, kuchedwetsa kwa manyowa kwa simenti, ndikuletsa simenti kuti asabwezere mwachangu panthawi yomanga, potero ndikuwonjezera nthawi ya matope. Nthawi yotseguka imathandizira omanga kumanga nthawi yogwiritsa ntchito nthawi yogwiritsira ntchito pomanga pamlingo waukulu.

Sinthani zotsutsana ndi kubereka ndi kusungidwa kwamadzi
HPMC imatha kusintha madzi osungira matope a simenti, kupewa kulowa madzi kusintha madzi, ndikusunga madzi okwanira m'matope nthawi ya ma simenti hydraction pomanga. Kuphatikiza apo, hpmc amathanso kuletsa kulekanitsa kwamadzi ndi kuphatikizika mu matope ndikuchepetsa tsankho la matope. Izi ndizofunikira kwambiri pakugona matope pamalo akulu, makamaka kutentha kwakukulu ndi malo owuma.

Kukulitsa chitsamba cha matope
Makina a HPMC amatha kupanga mawonekedwe a thupi pakati pathunthu ndi tinthu tating'onoting'ono, ndikulimbika chitsande cha matope. Izi zitha kusintha matope a simenti pamtunda magawo osiyanasiyana, makamaka pamagawo owuma kapena malo osakhazikika.

Sinthani kusalala kwa malo
Chifukwa cha mkaka wa hpmc, matope a simenti omwe ali ndi HPMC omwe amawonjeza ndi bwino, kuchepetsa kukula komwe kumatulutsidwa pa ntchito yomanga ndikuwongolera mawonekedwe ofunda komaliza. Izi ndizofunikira kwambiri mkati mwakokongoletsa, khoma lopanga ndi zomanga zina.

2. Udindo wa gypsum
Gypsum-yochokera ku gypsum imapangidwa ndi gypsum ufa, madzi ndi zowonjezera, ndipo zimagwiritsidwa ntchito kwambiri kukhoma lokongoletsa, kuyika ndi zokongoletsera. Udindo wa HPMC mu gypsum-yofanana ndi matope a simenti, komanso imakhalanso ndi ntchito zina zapadera.

Sinthani madzimadzi ndi kubisala
Zofanana ndi matope a simenti, madzimadzi ndi chinsinsi cha skerry gypsum-yochokera ku gypsum - zimakhudzanso zomanga. HPMC imatha kuwonjezera madzi a gypsum slurry, kuletsa kugona chifukwa chokhala osagwirizana komanso kutamatira panthawi yosakanikirana kapena kumanga, ndikuwonetsetsa zomanga bwino.

Kuchedwetsa kwa gypsum kukhazikitsa nthawi
Nthawi yokhazikika ya gypsum slurry imakhala yochepa. HPMC imatha kuchedwetsa kukhazikika kwa gypsum, kotero kuti malo otsekemera amatha nthawi yayitali pomanga. Izi zimathandizira omangamanga kuti azigwiritsa ntchito bwino pogwira ntchito yayikulu ndipo pewani zovuta zomanga chifukwa cholimbikitsidwa mwachangu.

Sinthani chitetezo chamadzi komanso kukana kukana
Gypsum slurry nthawi zambiri imakumana ndi vuto la kusakhalitsa m'madzi panthawi yomanga, yomwe idzayambitsa malo opumira. HPMC imatha kukonza madzi osungirako madzi osalala, kuchepetsa kuchuluka kwa madzi, potero kuchepetsa m'badwo wa ming'alu ndikusintha kukana kwa gypsum-pokana.

Kupititsa patsogolo
HPMC imatha kukonza zomatira pakati pa gypsum yokhazikika komanso magawo osiyanasiyana, makamaka pamiyala yolimba kapena yosakhazikika. Mwa kukonza zomata za slurry, hpmc imathandizira kukhazikika kwa gypsum ndikupewa mavuto monga momwe pambuyo pake akutsukira.

Sinthani Kusalala ndi Kukongoletsa
Ma gypsum-okhazikika nthawi zambiri amagwiritsidwa ntchito pomanga zokongoletsa, kotero kuti mawonekedwe ake ndi omaliza ndi ofunika kwambiri. Kuphatikiza kwa HPMC kumatha kupanga gypsum kusalala kwambiri komanso kosalala, kuchepetsa chodabwitsa panthawi yomanga, ndikusintha zotsatira zomaliza.

Udindo wa HPMC mu matope a simenti ndi gypsum-zochokera ku gypsum ndi mafuta ambiri. Imathandiza kwambiri ntchito yomangayi ndi zotsatira zomaliza za matope ndi gypsum-zopangidwa ndi simenti hydration kapena gypsum kusungika, kukonza madzi kukana, komanso kulimbikitsa komizidwa. Makamaka pakupanga kwakukulu ndi zokongoletsera, kugwiritsa ntchito HPMC kwasintha kwambiri pantchito komanso mtundu wopindulitsa, ndipo wakhala wowonjezera komanso wowonjezera pazomangamanga.