Mitundu ya mamalonda omwe nthawi zambiri amagwiritsidwa ntchito pomanga matope osakanikirana, mawonekedwe awo, makina a kuchitapo kanthu, komanso chitsogozo chawo pa matope owuma. Kupititsa patsogolo kwa othandizira otetezeka monga ma cellulose ndi ma etherry etherx ndi zida za manyowa ndi manyowa pa matope osakanikirana adakambidwa motsimikiza.
Admixtimes amatenga mbali yofunika kwambiri pakukonza matope osakanikirana, koma kuwonjezera kwa matope osakanizidwa kumapangitsa kuti matope osakanizika apamwamba kuposa matope owuma, omwe ali ndi ndalama zoposa 40%. Pakadali pano, gawo lalikulu la mgwirizano limaperekedwa ndi opanga zakunja, ndipo kuchuluka kwa malonda kumaperekedwanso ndi wotsatsa. Zotsatira zake, mtengo wa zinthu zosakanizika-zosakanizika zimakhazikika, ndipo nkovuta kugwirizanitsa matope wamba ndi matope okhala ndi madera ambiri; Zogulitsa pamsika waukulu zimayendetsedwa ndi makampani akunja, ndipo opanga matope owuma amakhala ndi phindu lotsika komanso kulolerana ndi mitengo; Pali kusowa kwa kafukufuku wa mwadongosolo komanso woyang'aniridwa pakugwiritsa ntchito mankhwala a mankhwala, ndipo njira zakunja zimatsatiridwa mwakhungu.
Kutengera pazifukwa zomwe zili pamwambapa, pempho ili limasanthula ndikufanizira zinthu zina zoyambira, ndipo pamaziko ochulukirapo omwe anthu ambiri amagwiritsa ntchito zouma zowuma pogwiritsa ntchito matope.
1 Mthandizi Wosunga Madzi
Mthandizi wosunga madzi ndi gawo lalikulu kusintha matope osakaniza ndi matope osakanikirana, ndipo ndi amodzi mwazovomerezeka kuti adziwe mtengo wamativesi.
1. Hydroxypropyll Methyl cellulose ether (hpmc)
Hydroxypylmmyl ndi mawu ambiri opangidwa ndi zinthu zingapo zomwe zimapangidwa ndi zomwe alkali adachita cellulose ndikumukonda. Ma cellulose amasinthidwa ndi othandizira osiyanasiyana kuti apeze cellulose yosiyanasiyana. Malinga ndi ma ionization katundu wa magalimoto, cellulose edel amatha kugawidwa m'magulu awiri: Ionic (monga carboxymethyl cellulose). Malinga ndi mtundu wa gawo lamitundu yamitundu itha kugawidwa mu monoether (monga methyl cellulose) ndi ethersed ether (monga hydroxypropyl celyiluse). Malinga ndi kusungunuka kosiyanasiyana, imatha kugawidwa m'madzi (monga hydrothyl cellulose) ndi matope osungunuka ndi ethyl cellulose.
Limagwirira ku zochita za cellulose ether mu matope ndi motere:
(1) Hydroxypypyll methylcellulose imasungunuka mosavuta m'madzi ozizira, ndipo imakumana ndi zovuta pakusungunuka m'madzi otentha. Koma kutentha kwake kwamadzi otentha kumakhala kokulirapo kuposa kwa methyl cellulose. Kusungunuka m'madzi ozizira kumathandizanso kwambiri poyerekeza ndi methyl cellulose.
. Kutentha kumakhudzanso mamasukidwe awo, pamene kutentha kumakulirakulira, ma virucy amachepetsa. Komabe, mawonekedwe ake okwera amakhala ndi kutentha kochepa kuposa celyyl cellulose. Njira yake imakhala yokhazikika ikasungidwa kutentha.
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. Diasc Soda ndi madzi a laimu samalimbikitsa pang'ono pa ntchito yake, koma alkali amatha kufulumizitsa kufalikira kwake ndikuwonjezera mawonekedwe ake. Hydroxypylropyl ndi chokhazikika pamchere wambiri, koma pamene kuchuluka kwa mchere ndi yayitali, mamasukidwe a hydroxypropyl so methylcellulose yankho limayamba kuchuluka.
. Monga mowa wa mulyvinyl, madzi owuma, masamba chingamu, etc.
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2. Methylcellulose (MC)
Wokongoletsa wokonzayo atathandizidwa ndi alkali, cellulose ether amapangidwa kudzera mu mndandanda wazomwe zimachitika ndi methane chloride ngati wothandizira. Nthawi zambiri, kuchuluka kwa zolowa ndi 1.6 ~ 2.0, ndipo solubility ndizosiyananso ndi madigiri osiyanasiyana. Ndi ya ether ether ether ether.
(1) Methylcellulose imasungunuka m'madzi ozizira, ndipo zingakhale zovuta kusungunuka m'madzi otentha. Njira yake yothetsera matenda imakhala yokhazikika mu pro = 3 ~ 12. Imakhala ndi kulumikizana bwino ndi wowuma, Guar Gum, etc. ndi ambiri okonda. Kutentha kukafika kwa kutentha kwa kutentha, gelation kumachitika.
. Nthawi zambiri, ngati kuchuluka kwake ndi kwakukulu, kukoma mtima ndikochepa, ndipo ma virus ndi akulu, osunga madzi ndi okwera. Pakati pawo, kuchuluka kwa kuwonjezera komwe kumapangitsa kuti pakhale madzi osunga madzi, ndipo kuchuluka kwa ma virus sikuphatikizidwa mwachindunji pamlingo wamadzi osamala yamadzi. Chiwerengero chophweka chimatengera kuchuluka kwa kuchuluka kwa ma cellulose tinthu tating'onoting'ono. Pakati pa cellulose yomwe ili pamwambapa, methyl cellulose ndi hydroxypropyl meth celyl cellulose imakhala ndi mitengo yapamwamba yamadzi.
(3) Kusintha kwa kutentha kumakhudza kwambiri malo osungitsa madzi a methyl cellulose. Nthawi zambiri, kutentha kwambiri, kumadzaza madzi. Ngati kutentha kwa matope kupitirira 40 ° C, kusunga madzi a methyl cellulose idzachepetsa kwambiri, kukhudzana ndi kapangidwe ka matope.
(4) Methyl cellulose imakhudzanso ntchito yomanga ndi kutsatira matope. "Zomatira" apa zikutanthauza mphamvu yotsatsira yomwe ikukhudzidwa pakati pa chida cha wogwira ntchito ndi khomalo, ndiye kuti, kung'amba matope. Kumatira ndikokwera, kukana matope ndi kwakukulu, ndipo mphamvu zofunidwa ndi ogwira ntchito pakugwiritsa ntchito nthawi zambiri zimagwiritsidwanso ntchito ndizochulukirapo, ndipo zomangamanga za matope ndi osauka. Methyl cellulose yotsatira ndi pamlingo woyenera mu cellulose ether ether.
3. Hydroxyethylcelulose (Hec)
Amapangidwa kuchokera ku thonje loyeyeretsedwa limathandizidwa ndi alkali, ndipo anachita ndi Ethylene oxide ngati othandizila mu Acetune. Mulingo wazolowa m'malo mwake 1.5 ~ 2.0. Ili ndi hydrophilicity wamphamvu ndipo ndizosavuta kuyamwa chinyezi.
(1) Hydroxethyl cellose imasungunuka m'madzi ozizira, koma zimakhala zovuta kusungunuka m'madzi otentha. Njira yake imakhazikika kutentha kwambiri osafuula. Itha kugwiritsidwa ntchito kwa nthawi yayitali pansi pa kutentha kwambiri kumatope, koma madzi ake ndi otsika kuposa a methyl cellulose.
(2) Volrorothyl cellulose ndi khola kwa onse ndi alkali. Alkali amathandizira kusungunuka kwake ndikuwonjezera pang'ono mamasukidwe ake. Kubalalitsa kwake m'madzi kumakulitsa pang'ono kuposa kwa methyl cellulose ndi hydroxypropyl methyl celluse. .
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Wowuma
Wosagwirara ndi matope omwe amagwiritsidwa ntchito m'matalemba amasinthidwa kuchokera ku ma polls achilengedwe a polysaccharides. Monga mbatata, chimanga, chinangwa, ndewu za ndevu ndi zina zotero.
1. Wosinthidwa wosinthika
Wowuma efa adasinthidwa kuchokera mbatata, chimanga, chinangwa, ndi zina zambiri zomwe zimachepetsa madzi. Chifukwa cha kusinthidwa kosinthika, kukhazikika kwa asidi ndi alkali ndi yosiyana. Zinthu zina ndizoyenera kugwiritsa ntchito matope a gypsum, pomwe ena angagwiritsidwe ntchito m'matavalo a simenti. Kugwiritsa ntchito chivundikiro cham'matontho kumatope kumagwiritsidwa ntchito makamaka ngati chotsitsimutsa katundu wa matope, kuchepetsa cholumikizira cha matope onyowa, ndikukulitsa nthawi yotseguka.
Kukula kwamitundu nthawi zambiri kumagwiritsidwa ntchito limodzi ndi cellulose, kotero kuti zinthu ndi zabwino za zinthu ziwiri izi zothandizana. Popeza kusintha kwa ether ether ndi kotsika mtengo kwambiri kuposa ethel ether, kugwiritsa ntchito stuther ether, kugwiritsa ntchito matope ozizira kumathetsa mtengo wamatope.
2. Guar Gum ether
Guar Gum ether ndi mtundu wa ether ether ndi katundu wapadera, womwe umasinthidwa ndi nyemba zachilengedwe. Makamaka potengera chikopa cha chingamu ndi gulu la acryliliction
. Mphamvu ya p ph ya nyutala imakhala yosakhudzidwa.
. Koma kusasinthika, anti-sag, thixotropy ndipo motero ayi.
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. Ilibe zovuta pa nthawi yokhala ndi mphamvu yamatope a gypsum.
3.. Zosinthidwa michere yamadzi
Thupi losungidwa ndi madzi opangidwa ndi mchere wachilengedwe kudzera mu kusinthana ndikugwiritsidwa ntchito ku China. Michendu yayikulu yomwe imagwiritsidwa ntchito pokonza madzi osungirako madzi ndi: Sepiolite, Bentonite, Montmorillonite, Kaolin, malo ena osungirako madzi ndi kukula kwamitundu ina. Mtundu wamtunduwu wokhala ndi madzi wosunga matope ali ndi machitidwe otsatirawa.
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(3) Mtengo wa zinthuzo ndi wotsika kwambiri kuposa wa cellulose ndi ether ether.
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Wobwezeretsedwa Polymer park
Ufa wobwezeretsedwanso umakonzedwa ndi kupukuta kwa emulsion yapadera. Mukukonzekera kukonza, kuteteza colloid, odana ndi anti-caring edge, etc. kukhala zowonjezera zowonjezera. Ufa wowuma ndi tinthu ena ozungulira 80 ~ 100mm asonkhana palimodzi. Tinthu toyambitsa timasungunuka m'madzi ndikupanga zomwe zimabalalitsa pang'ono pang'ono kuposa gawo loyambirira la emulsion. Kubalalitsa kumeneku kumapanga filimu pambuyo pakuwuma ndi kuyanika. Kanemayu ndiwosasinthika monga momwe ambiri amasinthira, ndipo osatinso ndalama zikakumana ndi madzi. Kubala.
Ufa wokwezedwa wobwezeretsedwa ukhoza kuphatikizidwa: styrene-butadiene pobolic acid ethylene cololic acid, etc., vinyl lalunjika, ndi zina zambiri. Njira zosinthira zosiyanasiyana zimapangitsa kuti mphire wosinthidwa ndi mphira ukhale ndi katundu wosiyana ndi madzi monga kukana madzi, alkali akukana, kukana ndi kusinthasintha. Muli vinyl laurate ndi silicone, yomwe imatha kupanga ufa wa mphira uli ndi hydrophobicity yabwino. Wokhazikika wa vinyl wobiriwira kwambiri wokhala ndi mtengo wotsika wa TG ndi kusinthasintha.
Mitundu iyi ya mphira iyi ikayika matope, onse amakhala ndi kuchepa kwa nthawi ya simenti, koma kuchedwa kuli kocheperako kuposa kugwiritsa ntchito mwachindunji kwa emulsions yofananayo. Poyerekeza, styrene-budiene ali ndi mphamvu yayikulu kwambiri yobwezeretsa, ndipo ethylene-vinyl acetate ali ndi mphamvu yochepetsetsa. Ngati Mlingo wake ndi wocheperako, zotsatira za momwe matope amapangira matope sizachidziwikire.
Post Nthawi: Apr-03-2023