Zotsatira za hydroxypropyl methylcellulose pazinthu za konkriti!

Hydroxypropyl methylcellulose (HPMC) ili ndi katundu wokhuthala kwambiri ndipo itha kugwiritsidwa ntchito ngati anti-dispersant yabwino kwambiri ya konkire.M'mbuyomu, nkhaniyi inali mankhwala omwe anali ochepa ku China, ndipo mtengo wake unali wokwera.Chifukwa cha zifukwa zosiyanasiyana, ntchito yake mu The ntchito mu makampani zomangamanga dziko langa, m'zaka zaposachedwapa, ndi mosalekeza chitukuko cha kunja luso kutchinjiriza khoma, kusowa patsogolo luso kupanga mapadi, ndi makhalidwe abwino a HPMC principal ndi chidwi, HPMC. yakhala ikugwiritsidwa ntchito kwambiri pantchito yomanga.

Choyamba: Kuyesa kwa Anti-dispersion:

Kukana kwa dispersion ndi ndondomeko yofunikira yaumisiri kuti muyese ubwino wa kulekana.HPMC ndi madzi sungunuka polima pawiri, amadziwikanso kuti madzi sungunuka utomoni kapena madzi sungunuka polima.Kumawonjezera osakaniza ndandanda ndi kuonjezera mamasukidwe akayendedwe ndi madzi.Ndi pro-Madzi-based polima zipangizo akhoza kupasuka m'madzi kupanga njira kapena dispersions.Mayesero amasonyeza kuti pamene kuchuluka kwa madzi ochepetsera madzi opangidwa ndi naphthalene kumawonjezeka, kuwonjezera kwa zochepetsera madzi kudzachepetsa kukana kwa kubalalitsidwa kwa simenti yatsopano yosakanizidwa.Izi zili choncho chifukwa chochepetsera madzi cha naphthalene chokhazikika kwambiri ndi chopanda madzi.Pamene chochepetsera madzi chikuwonjezeredwa kumatope, chochepetsera madzi chimayang'ana pamwamba pa tinthu ta simenti kuti pamwamba pazitsulo za simenti zikhale ndi malipiro omwewo.Kuthamangitsidwa kwamagetsi kumeneku kumapangitsa kuti tinthu tating'onoting'ono ta simenti Mapangidwe a flocculation awonongeke, ndipo madzi omwe ali m'kati mwake amamasulidwa, zomwe zidzachititsa kuti gawo la simenti liwonongeke.Nthawi yomweyo, zimapezeka kuti pakuwonjezeka kwa zomwe zili mu HPMC, kukana kwamwala kwa matope osakanikirana a simenti kukuyenda bwino.

Awiri: mphamvu za konkriti:

(1) Kuphatikizika kwa hydroxypropyl methylcellulose kumawonekera pang'onopang'ono kusakaniza kwamatope.Ndi kuwonjezeka kwa kuchuluka kwa HPMC, nthawi yochepetsera matope imakulitsidwa motsatizana.Pansi pa kuchuluka komweko kwa HPMC, kuumba pansi pa madzi Nthawi yoyika matope mumlengalenga ndi yotalika kuposa yomwe ili mumlengalenga, yomwe imapindulitsa popopera konkire yamadzi.

(2) Tondo la simenti lomwe wangosakaniza kumene ndi hydroxypropyl methylcellulose lili ndi zinthu zolumikizana bwino ndipo sizimatuluka magazi.

(3) Kuchuluka kwa hydroxypropyl methylcellulose ndi kufunikira kwa madzi mumatope kunatsika koyamba kenako ndikuwonjezeka mwachiwonekere.

(4) Kuphatikizika kwa chinthu chochepetsera madzi kumawongolera vuto la kuchuluka kwa madzi ofunikira pamatope, koma mlingo wake uyenera kuyendetsedwa moyenera, apo ayi matope oletsa kubalalitsidwa pansi pamadzi amatope osakanikirana a simenti nthawi zina achepetsedwa.

(5) Powonjezera hydroxypropyl methylcellulose pansi pamadzi osakaniza konkire osabalalika, kuwongolera mlingo kumapindulitsa ku mphamvu.Mayesowa amasonyeza kuti mphamvu ya konkire yopangidwa ndi madzi ndi mpweya wopangidwa ndi mpweya ndi 84,8%, ndipo zotsatira zake zimafaniziridwa kwambiri.