Kugwiritsa ntchito HPMC mu mapulawa a simenti ndi ma placesters

1. Mwachidule za HPMC
HPMC (Hydroxypypyl Methylcellulose, hydroxypropyll methylcellulose) ndi polymer polymer porther yokhazikitsidwa ndi mankhwala a cellulose. Ili ndi madzi abwino kusungunuka, kagwiridwe ka makanema, zotsatsa, zotsatsa, kusungidwa kwamadzi ndi rheology, ndipo zimagwiritsidwa ntchito, mankhwala, chakudya. M'makampani omanga, makamaka mu pulasitala wopangidwa ndi simenti, hpmc, hpmc, monga owonjezera, amatha kusintha zinthuzo, kukhala kofunikira kwambiri kukonza zinthu zomanga.

2. Kugwiritsa ntchito hpmc mu simenti-poyimitsa ndi Stucco
Sinthani magwiridwe antchito
Panthawi yomanga ya pulasitala yomanga ndi Stucco, HPMC imatha kusintha madzimadzi ndi kuwunikira, kupanga njira yomangayi komanso yunifolomu yambiri. Mayendedwe enieni ndi awa:

Fotokozerani nthawi yotseguka: HPMC ikhoza kuchedwa nthawi yoyambira simenti, potero ikuwonjezera nthawi yotseguka ya nkhaniyi. Izi zimathandiza ogwira ntchito yomanga nthawi yayitali, makamaka pomanga madera akulu, ndipo amalepheretsa simenti slorry kuti ikhale yolimba mwachangu komanso yokhudza zomangamanga.
Sinthani chotsatsa: pulasitiki yochokera pansi ndi StucCo nthawi zambiri imagwiritsidwa ntchito polumikizana pakati pa malo osiyanasiyana. HPMC imatha kusintha molunjika, kuchepetsa kukumbira, ndikuwonetsetsa kuti cholumikizira cha pulasitiki zosanjikiza kapena stucco.

Sinthani kusungidwa kwamadzi
Mu ma punyani okhala ndi miyala ndi ziphuphu za mmenga, zomwe zimaperekedwa kwa HPMC ndizofunikira kwambiri. Madzi mu simenti slurry amatuluka mwachangu, makamaka kutentha kwambiri komanso malo owuma, omwe amatha kuwongolera mosavuta kwa simenti osakwanira, ndikukhudza mphamvu ndi kukhazikika kwa pulasitala kapena matope. Pokonza madzi osungidwa, hpmc amatha kuchepetsa malire a madzi ndikuwonjeza simenti, potero kuwonjezera mphamvu ya pulasitiki yochokera kapena kuwonetsetsa zomanga.

Kulimbana ndi kusokoneza
Popeza zida zokhazikitsidwa ndi simenti ndi zida za Stucco zimapanga nkhawa zamkati pakulimbana, zimakonda ming'alu, makamaka m'malo owuma ndi kutentha kwakukulu. HPMC imatha kuchepetsa nthawi yopuma yowuma posintha rheology ndi kusungidwa kwamadzi kwa simenti slorry. Kuphatikiza apo, cholumikizira cha HPMC chikuwongolera mphamvu yolumikizirana pakati pa pulasitiki ndipo amachepetsa mapangidwe aming'alu yakunja, ndikuwongolera kukana kwa pulasitiki wosanjikiza.

Sinthani chiwerewere
HPMC imagwiritsidwa ntchito ngati thickiter mu mapulasi a pulayala ndi ziphuphu, zomwe zimapangitsa chidwi chazosalala. Itha kupangitsa kuti malowa akhale ndi madzi abwino komanso akuwoneka bwino, kupewa mavuto omanga omwe ndi owonda kwambiri kapena onenepa kwambiri. Mwachitsanzo, HPMC imatha kukonza kuyimitsidwa, kotero kuti tinthu tating'onoting'ono tinthu tating'onoting'ono timagawidwanso, kupewa kukhazikika, ndikuwonetsetsa kuti mapulani abwino.

Kutsuka
HPMC imatha kukonza kusamba kwamadzi kwa cement-porter-center ndi stucco ndikuchepetsa kukokoloka kwa madzi pa slurry pamalo otentha. Ngati simenti yoluma ya simenti ilibe madzi okwanira, zidzakhudza kuthamanga ndi mphamvu ya simenti. HPMC imatha kupangitsa kuti madzi kukanamizidwe a simenti ndi ziwalo kuti mupewe kukokoloka kwakunja ndi chinyezi chakunja, motero kukonza kukhazikika kwa chimbudzi.

3. Mlingo ndi malingaliro a ntchito za HPMC
Mlingo wa hpmc nthawi zambiri umadalira mtundu wa purmenta kapena stucco ndi zofunikira zake. Nthawi zambiri, kuchuluka kwa hpmc chowonjezeredwa pafupifupi 0.1% -0.5% ya simenti, koma kuchuluka kwake kumafunikira kusintha malinga ndi momwe zinthu ziliri. Mwachitsanzo, pamapulogalamu apadera, zowonjezera zapamwamba zimatha kupititsa patsogolo zotsatsa zathupi, kusungidwa kwamadzi, kapena chiwerewere.

Mukamagwiritsa ntchito HPMC, muyenera kulabadira mfundo zotsatirazi:
Kuphatikiza yunifolomu: HPMC imaberekanso bwino m'mapazi ndi ma pulota. Mukamagwiritsa ntchito, onetsetsani kuti imasakanikirana kwathunthu ndi zosakanikirana zina kuti mupewe kubula.
HPMC ili ndi mtundu wina wa hygrosopicity ndipo iyenera kusungidwa pamalo owuma kuti mupewe kunyowa kumabweretsa kuchepa kwa magwiridwe ake.
Mgwirizano ndi zina zowonjezera: mukamagwiritsa ntchito powonjezera njira yophatikizira, ndikofunikira kuonetsetsa kuti kugwirizana kwa HPMC ndi zina zowonjezera zamankhwala kuti mupewe kusokoneza.

4. Ubwino ndi zovuta za HPMC

Ubwino:
Chitetezo cha chilengedwe: Monga zinthu zachilengedwe za polymer, hpmc ali ndi magwero okhazikika ndipo amalemetsa kwambiri zachilengedwe.
Kuthana ndi Kumanga: HPMC imatha kusintha magwiridwe antchito a pulaiment-romedo, kupanga njira yomangako kukhala yosavuta komanso mwachangu.
Kukhazikika kwabwino: kumawonjezera kusungidwa kwamadzi, kukana madzi ndi kusamba kwamadzi kukana mapulawa ndi ma punyashi, kufalitsa moyo wazomangamanga.

Vuto:
Nkhani yotsika mtengo: Mtengo wa HPMC ndi wokwera kwambiri, makamaka mukamagwiritsidwa ntchito pamlingo waukulu, womwe ungakulitse mtengo wonse wa zida.
Vuto Logwirizana: HPMC ili ndi zotsatira zosiyanasiyana m'mitundu yosiyanasiyana ya simenti, komanso kufalikira koyenera kumatha kukhudza magwiridwe omaliza.

Monga chowonjezera cha ntchito zowonjezera, HPMC ili ndi mtengo wofunikira kwambiri mu cement-porterd-rocca. Mwa kusintha magwiridwe antchito, kuwonjezera madzi osungira madzi, kuyanjana kwa madzi, ndikuwongolera kukana kwa zinthu za simenti kumathandizira ndikukwaniritsa zofunikira zamakono zomanga thupi ndi zomangamanga. Komabe, kugwiritsa ntchito HPMC kumafunikiranso kuphatikizidwa ndi zofunikira zenizeni ndi mlingo wake ndi kuchuluka kwake kuyenera kusankhidwa kuti zitsimikizire kuti zili bwino kwambiri pazomangira.