Chidule:Zotsatira za zosiyana za hydroxypropyl methylcellulose ether pa katundu wamba wamba wosakaniza wowuma wowuma anaphunzira.Zotsatira zinasonyeza kuti: ndi kuwonjezeka kwa zomwe zili mu cellulose ether, kusasinthasintha ndi kachulukidwe kunachepa, ndipo nthawi yokhazikitsa inachepa.Kuwonjeza, 7d ndi 28d mphamvu zopondereza zatsika, koma ntchito yonse yamatope osakaniza owuma yasinthidwa.
0. Mawu Oyamba
Mu 2007, mautumiki asanu ndi limodzi ndi makomiti a dzikolo adatulutsa "Chidziwitso Choletsa Kusakaniza Kwamatope Pamalo M'mizinda Ina mkati mwa Nthawi Yokwanira".Pakalipano, mizinda ya 127 m'dziko lonselo yagwira ntchito "yoletsa matope omwe alipo", zomwe zabweretsa chitukuko chosaneneka pakupanga matope owuma.mwayi.Ndi chitukuko champhamvu cha matope osakaniza owuma m'misika yomanga nyumba ndi kunja, mitundu yosiyanasiyana ya matope owuma yalowanso m'makampani omwe akubwera, koma makampani ena opanga matope ndi malonda amakokomeza mwadala mphamvu ya mankhwala awo, kusocheretsa owuma- makampani osakaniza matope.chitukuko cha thanzi ndi mwadongosolo.Pakalipano, monga zosakaniza za konkire, zosakaniza zowuma zowuma zimagwiritsidwa ntchito pophatikizana, ndipo zochepa zimagwiritsidwa ntchito zokha.Makamaka, pali mitundu yambiri ya zosakaniza zina mumatope osakanikirana owuma, koma Mumatope osakaniza owuma, palibe chifukwa chotsatira chiwerengero cha admixtures, koma tcheru kwambiri chiyenera kuperekedwa ku practicability ndi operability. pewani kugwiritsa ntchito kwambiri zosakaniza zamatope, zomwe zimayambitsa zinyalala zosafunikira, komanso kusokoneza ntchitoyo.Mumtondo wamba wosakanizika, cellulose ether imagwira ntchito yosunga madzi, kukhuthala, ndikuwongolera ntchito yomanga.Kuchita bwino kwa madzi osungira madzi kumatsimikizira kuti matope osakaniza owuma sangapangitse mchenga, ufa ndi kuchepetsa mphamvu chifukwa cha kusowa kwa madzi ndi simenti yosakwanira;thickening zotsatira kwambiri kumawonjezera structural mphamvu ya chonyowa matope.Pepalali likuchita kafukufuku wokhazikika pakugwiritsa ntchito ma cellulose ether mumtondo wamba wosakanizika wowuma, womwe uli ndi tanthauzo la momwe mungagwiritsire ntchito zosakaniza bwino mumatope wamba wosakanikirana.
1. Zopangira ndi njira zomwe zimagwiritsidwa ntchito poyesa
1.1 Zida zopangira mayeso
Simentiyo inali P. 042.5 simenti, phulusa la ntchentche ndi phulusa la Class II kuchokera ku malo opangira magetsi ku Taiyuan, chophatikizira chabwino ndi mchenga wouma wa mtsinje ndi kukula kwa 5 mm kapena kuposerapo, fineness modulus ndi 2.6, ndi cellulose ether ndi hydroxypropyl methyl cellulose ether (makamakamakamaka 12000 MPa·s).
1.2 Njira yoyesera
Kukonzekera kwachitsanzo ndi kuyesa magwiridwe antchito kunachitika molingana ndi JCJ/T 70-2009 njira yoyeserera yoyambira yopangira matope.
2. Ndondomeko yoyesera
2.1 Fomula ya mayeso
Pakuyesa uku, kuchuluka kwa 1 toni ya matope osakaniza owuma amagwiritsidwa ntchito ngati njira yoyambira kuyesa, ndipo madzi ndikumwa madzi a 1 toni yamatope osakaniza owuma.
2.2 Dongosolo lachindunji
Pogwiritsa ntchito chilinganizo ichi, kuchuluka kwa hydroxypropyl methylcellulose ether anawonjezera tani iliyonse ya youma wothira pulasitala matope ndi: 0.0 kg/t, 0.1 kg/t, 0,2 kg/t, 0,3 kg/t, 0,4 kg/tt, 0.6 kg/ t, kuphunzira zotsatira za Mlingo wosiyanasiyana wa hydroxypropyl methylcellulose ether pa kusungirako madzi, kusasinthika, kachulukidwe kowoneka bwino, nthawi yoyika, komanso mphamvu yopondereza ya matope wamba osakanikirana owuma, kuti atsogolere pulasitala wowuma. admixtures amatha kuzindikira ubwino wa njira yosavuta yopangira matope owuma, kumanga kosavuta, kuteteza chilengedwe ndi kupulumutsa mphamvu.
3. Zotsatira zoyesa ndi kusanthula
3.1 Zotsatira za mayeso
Zotsatira za Mlingo wosiyanasiyana wa hydroxypropyl methylcellulose ether pa kusungirako madzi, kusasinthika, kachulukidwe kowoneka bwino, nthawi yoyika, komanso mphamvu yopondereza ya matope wamba osakanikirana owuma.
3.2 Kusanthula zotsatira
Zitha kuwoneka kuchokera ku zotsatira za Mlingo wosiyanasiyana wa hydroxypropyl methylcellulose ether pa kusungirako madzi, kusasinthika, kachulukidwe kowoneka bwino, nthawi yoyika, komanso mphamvu yopondereza ya matope wamba osakanikirana owuma.Ndi kuwonjezeka kwa cellulose ether okhutira, mlingo wosungira madzi wa matope onyowa ukuwonjezekanso pang'onopang'ono, kuchokera ku 86.2% pamene hydroxypropyl methyl cellulose siisakaniza, mpaka 0.6% pamene hydroxypropyl methyl cellulose imasakanikirana.Kuchuluka kwa madzi osungira madzi kumafika ku 96.3%, zomwe zimatsimikizira kuti madzi osungira madzi a propyl methyl cellulose ether ndi abwino kwambiri;kusinthasintha kumachepa pang'onopang'ono pansi pa mphamvu yosungira madzi ya propyl methyl cellulose ether (kugwiritsira ntchito madzi pa tani yamatope kumakhalabe kosasintha panthawi yoyesera);Kachulukidwe kowoneka bwino kakuwonetsa kutsika, kuwonetsa kuti kusungidwa kwa madzi kwa propyl methyl cellulose ether kumawonjezera kuchuluka kwa matope onyowa ndikuchepetsa kuchuluka kwake;nthawi yoikika imatalika pang'onopang'ono ndikuwonjezeka kwa zomwe zili mu hydroxypropyl methyl cellulose ether, ndipo zomwe zili mu Ikafika pa 0.4%, imaposa mtengo wa 8h wofunikira ndi muyezo, zomwe zikuwonetsa kuti kugwiritsa ntchito moyenera hydroxypropyl methylcellulose ether kuli zabwino zoyendetsera nthawi operability wa chonyowa matope;mphamvu yopondereza ya 7d ndi 28d yatsika (Kuchuluka kwa mlingo, kumachepetsanso koonekeratu).Izi zikugwirizana ndi kuwonjezeka kwa voliyumu ya matope komanso kuchepa kwa kachulukidwe kowoneka bwino.Kuphatikiza kwa hydroxypropyl methyl cellulose ether kumatha kupanga chitsekerero chotsekeka mkati mwa matope owumitsidwa panthawi yokhazikitsa ndi kuuma kwa matope.Ma Micropores amathandizira kukhazikika kwa matope.
4. Njira zodzitetezera pakugwiritsa ntchito cellulose ether mumtondo wamba wosakanikirana wowuma
1) Kusankha mankhwala a cellulose ether.Nthawi zambiri, kukhuthala kwakukulu kwa cellulose ether, kumapangitsanso kuti madzi asungidwe bwino, koma kukhuthala kwamphamvu, kumachepetsa kusungunuka kwake, zomwe zimawononga mphamvu ndi ntchito yomanga matope;ubwino wa cellulose ether ndi wochepa mumatope osakaniza owuma.Akuti kung'ambika bwino, kusungunuka mosavuta.Pansi pa mlingo womwewo, kuwongolera bwino, kumapangitsa kuti madzi asungidwe bwino.
2) Kusankha mlingo wa cellulose ether.Kuchokera ku zotsatira zoyesa ndi kusanthula zotsatira za zomwe zili mu cellulose ether pa ntchito ya matope osakaniza osakaniza owuma, zikhoza kuwonedwa kuti ndipamwamba zomwe zili mu cellulose ether, bwino, ziyenera kuganiziridwa kuchokera ku mtengo wopangira. khalidwe la mankhwala, ntchito yomanga ndi Zinayi za malo omanga kuti asankhe bwino mlingo woyenera.Mlingo wa hydroxypropyl methyl cellulose ether mumtondo wamba wosakanizidwa bwino ndi 0.1 kg / t-0.3 kg / t, ndipo zotsatira zosungira madzi sizingakwaniritse zofunikira ngati kuchuluka kwa hydroxypropyl methyl cellulose ether kuwonjezeredwa pang'ono.Ngozi yabwino;Mlingo wa hydroxypropyl methyl cellulose ether mumtondo wapadera wosamva phala ndi pafupifupi 3 kg/t.
3) Kugwiritsa ntchito cellulose ether mumtondo wamba wosakanikirana wowuma.Pokonzekera matope wamba wothira wowuma, mutha kuonjeza kuchuluka koyenera kwa osakaniza, makamaka ndi madzi ena osungira ndi kukhuthala, kuti athe kupanga mawonekedwe ophatikizika ndi cellulose ether, kuchepetsa mtengo wopanga, ndikusunga zinthu. ;ngati agwiritsidwa ntchito okha Pa cellulose ether, mphamvu yomangirira singakwaniritse zofunikira, ndipo kuchuluka koyenera kwa ufa wa latex wopangidwanso ukhoza kuwonjezeredwa;chifukwa cha kuchepa kwa matope admixture, cholakwika choyezera chimakhala chachikulu chikagwiritsidwa ntchito chokha.Ubwino wa mankhwala owuma osakaniza matope.
5. Mapeto ndi malingaliro
1) Mumatope osakaniza owuma owuma, ndi kuwonjezeka kwa zomwe zili mu hydroxypropyl methylcellulose ether, madzi osungira madzi amatha kufika 96.3%, kusasinthasintha ndi kachulukidwe kumachepetsedwa, ndipo nthawi yoyikirayo imatalika.Mphamvu yopondereza ya 28d inachepa, koma ntchito yonse ya matope osakanizidwa owuma idakula bwino pamene zomwe zili mu hydroxypropyl methyl cellulose ether zinali zochepa.
2) Pokonzekera matope wamba osakanikirana, ma cellulose ether okhala ndi mamasukidwe oyenera ndi fineness ayenera kusankhidwa, ndipo mlingo wake uyenera kutsimikiziridwa mosamalitsa mwa kuyesa.Chifukwa cha kuchepa kwa matope admixture, cholakwika choyezera chimakhala chachikulu chikagwiritsidwa ntchito chokha.Ndikoyenera kusakaniza ndi chonyamulira choyamba, ndiyeno kuonjezera kuchuluka kwa kuwonjezera kuonetsetsa ubwino wa zowuma zosakaniza matope mankhwala.
3) Mtondo wowuma ndi bizinesi yomwe ikubwera ku China.M'kati ntchito matope admixtures, sitiyenera mwachimbulimbuli kulondola kuchuluka, koma kulabadira kwambiri khalidwe ndi kuchepetsa mtengo kupanga, kulimbikitsa ntchito zotsalira zinyalala mafakitale, ndi kukwaniritsadi kupulumutsa mphamvu ndi kuchepetsa kumwa.
Nthawi yotumiza: Feb-22-2023