Cellulose ether ndiye chowonjezera chachikulu cha gypsum wopepuka, chomwe chimagwira ntchito yofunika kwambiri pakuyika gypsum yopepuka. Kumanja si tcheru pulasitala maziko a mapadi efa HPMC mankhwala, akhoza mofulumira adzalowerera mu mitundu yonse ya mankhwala gypsum ndipo sadzabala masango, porosity wa pulasitala gypsum pambuyo kuchiritsa popanda zotsatira zoipa, kuti kuonetsetsa kupuma ntchito pulasitala gypsum. , retading kanthu koma alibe mphamvu pa gypsum makhiristo anakulira, ndi yoyenera yonyowa viscous mphamvu kuonetsetsa chuma kugwirizana luso, pa m'munsi pamwamba Kupititsa patsogolo ntchito yomanga gypsum mankhwala, kuwapangitsa kukhala kosavuta kufalitsa popanda kumamatira zida.
Monga inu nonse mukudziwa, m'zaka zaposachedwa, ndi chitukuko cha dziko ndi kusintha ndondomeko, chitukuko cha zobiriwira chitetezo chilengedwe zipangizo zomangira wakhala otentha malo, monga m'nyumba pulasitala zinthu zatsopano, pulasitala gypsum akuchulukirachulukira, pulasitala gypsum ndi. m'malo simenti matope a zipangizo zatsopano zopulumutsira mphamvu, kuteteza chilengedwe, chuma, onse mphamvu ya simenti, ndi kuyerekeza ndi simenti thanzi chitetezo chilengedwe, cholimba, zomatira mphamvu ndi lalikulu, si zophweka ufa, osati akulimbana, osati opanda kanthu. ng'oma, osati kuponya ufa ndi ubwino wina, yosavuta kugwiritsa ntchito, kupulumutsa mtengo, kuwala pulasitala gypsum makamaka zochokera kumanga pulasitala ufa monga mfundo yaikulu, kuyatsa perlite kapena galasi mikanda monga akaphatikiza, kuwonjezera zosiyanasiyana zipangizo zatsopano pulasitala.
Cellulose ether Lili ndi zabwino izi:
Choyamba, kusintha chinyezi mpweya, pamene chinyezi kunja ndi apamwamba kuposa lolingana chinyezi cha pulasitala, chifukwa kunja nthunzi kuthamanga ndi apamwamba kuposa ano zimalimbikitsa nthunzi kuthamanga, kulimbikitsa ntchito mkati adsorption madzi, kuti achedwe kukwera kwa mpweya. chinyezi; Pamene chinyezi chakunja ndi chotsika kuposa chinyezi chofananira cha pulasitala gypsum, mphamvu ya nthunzi yakunja imakhala yotsika kuposa kuthamanga kwake kwa nthunzi, zomwe zimapangitsa kuti mamolekyu amadzi amkati asamawonongeke. Chifukwa chake, imatha kugwira ntchito yosintha ndikuwongolera chinyezi.
Chachiwiri, ogwira lawi retadancy. Kulemera kwa molekyulu ya dihydrous gypsum ndi 172, ndipo kulemera kwa madzi ndi 18. Nyumba ya 100m2 ikakumana ndi moto, kutentha kukafika 110 ℃ kapena pamwamba, dihydrous gypsum imamasula mwamsanga madzi a kristalo mu semihydrous gypsum ndikusintha kwina. mu gypsum ya anhydrous, yomwe imatha kutulutsa madzi okwana 560kg. Madzi amatha kuyamwa kutentha kwakukulu munjira ya nthunzi. Ikhoza kuteteza kukwera mofulumira kwa kutentha kwa chipinda ndikuwonjezera mwayi wothawa.
Chachitatu, kuteteza zachilengedwe zobiriwira. Gypsum itatha chithandizo chosavulaza, ilibe zoipitsa zosungunuka, kugwiritsa ntchito zida za gel osakaniza, zowonjezera ndi zinthu zoteteza chilengedwe, zopangidwa ndi pulasitala wopepuka satulutsa formaldehyde ndi zinthu zina zovulaza, chitetezo chachilengedwe chobiriwira, chitetezo ndi mpumulo.
Chachinayi, kutchinjiriza kutentha, kupulumutsa mphamvu, kuyamwa kwa mawu, kukana mphamvu. Kutentha kwa pulasitala pulasitala ndi 0.17W / (MK), kotero kuti matenthedwe pulasitala pulasitala ndi 20% ya miyambo simenti pulasitala matope, amene ali ndi mphamvu kutchinjiriza matenthedwe mphamvu ndipo akhoza kuchepetsa mphamvu ya nyumba. Plastering gesso ali mu ndondomeko condense, mkati umapanga kusiyana ting'onoting'ono, chifukwa akhoza attenuate phokoso kuthamanga, angalepheretse phokoso mphamvu polojekiti kachiwiri, akhoza kusintha phokoso mphamvu mu kutentha mphamvu, ndi zabwino phokoso kutchinjiriza ntchito kotero. Chifukwa cha porous dongosolo pambuyo condensation, akhoza bwino kuyamwa mphamvu mphamvu, kotero si kung'ambika ndi kugwa pamene kukhudzidwa.
Kupaka gypsum ndi cellulose ether makamaka kumakhala ndi izi:
1, zomangamanga zabwino kwambiri: kukanda kosavuta, kosalala, kumatha kukhala kuumba, ndi pulasitiki.
2, kusintha pulasitala matope ❖ kuyanika mlingo: poyerekeza ndi mapalo ofanana efa, ❖ kuyanika mlingo wawonjezeka kwambiri.
3, magwiridwe antchito abwino kwambiri odana ndi dontho: kukwapula kolimba kwa nyumba imodzi sikumayenda, kukwapula kopitilira kawiri (kuposa 3cm) sikugwetsa, pulasitiki yabwino kwambiri.
4, kuchuluka kwamadzi osungira madzi: kutalikitsa nthawi yogwiritsira ntchito gypsum base, sinthani kukana kwanyengo kwa gypsum base, onjezerani mphamvu zomangira za gypsum base ndi maziko, kugwira ntchito bwino konyowa, kuchepetsa phulusa lapansi.
5, kuyanjana kwamphamvu: koyenera kwa mitundu yonse ya gypsum m'munsi, kuchepetsa nthawi yokalamba ya gypsum, kuchepetsa kuyanika kwa shrinkage, khoma sikophweka kuchotsa ng'oma, kusweka.
6, ntchito munda ndi kuchuluka: kuwala pansi pulasitala gypsum, analimbikitsa mlingo 0.18% - 0,25%.
Plastering gypsum ndi mapadi ether amapangidwa ndi thonje wapamwamba woyengedwa ndi etherification anachita, sanali ionic mapadi efa, khola katundu thupi, sangabweretse mankhwala anachita ndi zipangizo zina ndi kutulutsa zinthu zoipa, zachilengedwe, osakhudza thanzi la munthu, mu pulasitala gypsum ndi mtundu wa zobiriwira mphamvu kupulumutsa zina, KIMA wakhala lingaliro la wobiriwira kuteteza zachilengedwe ndi kusunga mphamvu mu katundu kampani ndi kasamalidwe, ife kulimbikitsa chitukuko zisathe, poyankha kuitana dziko, mapiri obiriwira ndi golide ndi siliva. mapiri, KIMA idzagwiritsa ntchito zinthu zabwino za cellulose ether kuti zithandizire dziko lapansi kupanga zobiriwira zoteteza zachilengedwe m'nyumba zopaka khoma.
Nthawi yotumiza: Feb-18-2022