Kapangidwe ka cellulose ether ndi momwe zimakhudzira matope

Cellulose ether ndiye chowonjezera chachikulu mumatope osakaniza okonzeka.Mitundu ndi mawonekedwe a cellulose ether amayambitsidwa.Zotsatira za hypromellose etha HPMC pa katundu wa matope amaphunzira mwadongosolo.Zotsatira zikuwonetsa kuti HPMC ikhoza kukonza malo okhala ndi madzi amatope, kuchepetsa madzi, kuchepetsa kusakanikirana kwa matope osakaniza, kutalikitsa nthawi yoikika, ndi kuchepetsa mphamvu yowonongeka ndi yopondereza ya matope.Tondo ndi chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri pantchito yomanga.Ndi chitukuko cha sayansi ya zipangizo ndi kufunikira kwa khalidwe la zomangamanga, matope akhala otchuka ngati konkire yosakaniza, yakhala ikugulitsidwa pang'onopang'ono.Poyerekeza ndi matope okonzedwa ndi luso lamakono, kupanga malonda a matope kuli ndi ubwino wambiri: 1, khalidwe lapamwamba;2, mkulu mankhwala Mwachangu;3, kuipitsidwa kochepa kwa chilengedwe, yabwino yomanga mwachitukuko, pakadali pano, pali Guangzhou, Shanghai, Beijing ndi mizinda ina yolimbikitsa matope okonzeka osakanikirana, miyezo yokhudzana ndi makampani, miyezo ndi miyezo yadziko yaperekedwa kapena iperekedwa posachedwa.Kusiyana kwakukulu pakati pa matope osakaniza okonzeka ndi matope achikhalidwe ndiko kuwonjezera kwa mankhwala osakaniza, omwe cellulose ether ndi mankhwala omwe amagwiritsidwa ntchito kwambiri.Ma cellulose ether nthawi zambiri amagwiritsidwa ntchito ngati chosungira madzi kuti apititse patsogolo Kugwira ntchito kwamatope osakaniza okonzeka.Choncho, ndizothandiza kusankha ndi kugwiritsa ntchito cellulose ether molondola komanso kuonetsetsa kukhazikika kwa ntchito ya matope a simenti pomvetsetsanso mphamvu ya mtundu wa cellulose ether ndi mawonekedwe ake pakuchita matope a simenti.

1. Mitundu ndi mapangidwe a cellulose ether cellulose ether ndi mtundu wa zinthu zosungunuka za polima zosungunuka m'madzi, zimapangidwa ndi cellulose yachilengedwe ndi yankho la alkali, grafting reaction (etherification) , kutsuka, kuyanika, kugaya ndi njira zina.Ma cellulose ether amagawidwa m'magulu a ionic ndi omwe si a ionic.Ionic cellulose imakhala ndi mchere wa carboxymethyl cellulose, pamene cellulose yopanda ionic imakhala ndi ethers ya hydroxyethyl cellulose, hydroxypropyl methyl cellulose ethers, ethers ya Methyl cellulose, ndi zina zotero.Chifukwa ionic cellulose ether (carboxymethyl cellulose) ndi yosakhazikika pamaso pa ayoni a calcium, sagwiritsidwa ntchito kawirikawiri muzinthu za ufa wouma ndi zinthu za simenti monga simenti ndi laimu wa hydrated, ma cellulose ethers omwe amagwiritsidwa ntchito mumatope owuma amakhala makamaka hydroxyethyl methyl cellulose ethers (HEMC). ) ndi hydroxypropyl methyl cellulose ethers (HPMC) , gawo lawo la msika likupitirira 90% 2. Zotsatira za cellulose ether pa katundu wa matope a simenti 1. The raw material cellulose ether pofuna kuyesa: opangidwa ndi Shandong Gomez Chemical Co., Ltd. kukhuthala: 75000;Simenti: 32.5 giredi composite simenti;Mchenga: mchenga wapakati;Fly Ash: II kalasi.2 zotsatira za mayeso 1. Kuchepetsa madzi a cellulose ether chithunzi 2 ndi mgwirizano pakati pa kusasinthasintha kwa matope ndi zomwe zili mu cellulose ether mu gawo losakanikirana losakanikirana, pang'onopang'ono kuwonjezeka.Pamene 0,3 ‰ ikuwonjezeredwa, kugwirizana kwa matope kumawonjezeka ndi pafupifupi 50% , zomwe zimasonyeza kuti cellulose ether ikhoza kupititsa patsogolo ntchito ya matope, ndi kuwonjezeka kwa zomwe zili mu cellulose ether, kuchuluka kwa madzi omwe amagwiritsidwa ntchito akhoza kuchepetsedwa pang'onopang'ono. .Zitha kuganiziridwa kuti cellulose ether ili ndi mphamvu yochepetsera madzi.2. Mtondo wokhala ndi madzi wosungira madzi umatanthawuza kukhoza kwa matope kusunga madzi, komanso ndi ndondomeko ya ntchito yoyesa kukhazikika kwa matope atsopano a simenti panthawi yoyendetsa ndi kuyimitsa magalimoto.Kusungidwa kwa madzi kwa matope osakaniza okonzeka kungayesedwe ndi ndondomeko ya Delamination ndi kusungirako madzi, koma sizowoneka bwino kuti ziwonetsere kusiyana kwake chifukwa chowonjezera chosungira madzi.Mayeso osungira madzi ndi kuwerengera kuchuluka kwa madzi osungira madzi poyesa kusintha kwa khalidwe la pepala la fyuluta isanayambe komanso itatha kukhudzana ndi malo otchulidwa matope mu nthawi inayake.Chifukwa cha kuyamwa bwino kwamadzi kwa pepala losefera, ngakhale kusungidwa kwamadzi kwamatope ndikwambiri, pepala losefera limathabe kuyamwa madzi amatope, kotero kuti kuchuluka kwa kusungirako madzi kumatha kuwonetsa bwino kusungidwa kwamadzi mumatope, m'pamenenso kusungirako madzi kukukwera. mtengo, ndi bwino kusunga madzi.