Hydroxypropyl methyl cellulose ndi simenti ratio

Kodi chiŵerengero cha HPMC Hydroxypropyl methyl cellulose ndi simenti ndi chiyani?

Dongo lopanda madzi lopangira uinjiniya, mawonekedwe ake amadalira kulemera kwazinthu zopangira: Konkire 30-340, zomangamanga zomangira zinyalala ufa wa njerwa 40-50, lignin fiber 20-24, calcium formate 4-6,hydroxypropyl methyl cellulose7-9, silicon carbide powder 40-45, calcium hydroxide powder 10-20, bulauni corundum ufa 10-12, youma mzinda waukulu silt ufa 30-35, Datong city nthaka 40-45, aluminium sulfate 4-6, carboxymethyl Base wowuma 20-24, kusinthidwa zipangizo nanotechnology mpweya ufa 4-6, madzi 600-650;Mtondo wosakanizidwa ndi madzi wamtunduwu uli ndi kutentha kwamphamvu, kukana moto, kumangika mwamphamvu ndi khoma, kulimba mtima, kulimba mtima, kukana kukalamba bwino, kuteteza chilengedwe, kutetezedwa bwino kwa chinyezi, kukana ming'alu, kupewa kugwa.Lero tikambirana za kukhuthala kwa hydroxypropyl methyl cellulose aqueous solution ndi mbali ziti?Tiyeni tiphunzire izo.

1. Kulemera kwa maselo, kutentha kwa njira yamadzimadzi, kudula ndi njira yoyesera ya cellulose ether;2. Kutentha kwa kutentha kwa galasi, kumapangitsa kuti thupi likhale lolemera kwambiri, kukhuthala kwa yankho kumakhala kokwezeka;3. Zomwe zili mu cellulose ether, zimakweza kukhuthala kwa yankho, kotero pakukhazikitsa ntchitoyo tiyenera kulabadira kuchuluka koyenera kwa kuphatikizika, kupewa kuphatikizika ndikwambiri, ndikukhudza mwachindunji mawonekedwe a matope a simenti. ndi konkriti ya simenti;4. Monga njira zambiri zothetsera, kukhuthala kudzachepanso ndi kuwonjezeka kwa kutentha, kuphatikizapo apamwamba omwe ali ndi cellulose ether, kuwonongeka kwakukulu kwa kutentha;Kuphatikiza apo, kukhuthala kwenikweni kumasiyanasiyananso malinga ndi kuchuluka kwa madzi omwe amagwiritsidwa ntchito pa simenti ya epoxy.

Hydroxypropyl methyl cellulose amadzimadzi njira mamasukidwe akayendedwe kukhuthala amakhalanso ngati kugwirizana kiyi kwa ndemanga pa makhalidwe a mapadi efa, ndi apamwamba mamasukidwe akayendedwe a amadzimadzi njira, ndi wandiweyani wa epoxy simenti zipangizo ndi bwino, kumbuyo kwa mbale gelling katundu, koma ngati mamasukidwe akayendedwe ndi lalikulu kwambiri, kuvulaza epoxy simenti zopangira yomweyo liquidity ndi enforceability.Ponena za matope ena odzipangira okha omwe ali ndi madzi ambiri, kukhuthala kwa cellulose ether kudzafotokozedwa kukhala kotsika.

Ma cellulose ether amadzimadzi njira ndi pseudoplastic thupi, ife mu siteji ya posachedwapa kudziwika kwa kumeta ubweya mlingo ndi waukulu, mamasukidwe akayendedwe ndi ang'onoang'ono.

Choncho, mwachidule ndi: mgwirizano wa simenti matope adzakhala yafupika ndi mphamvu kunja, amene ndi opindulitsa kwa zomangamanga zomangamanga kumbuyo, koma mapadi etere amadzimadzi njira mu nkhani ya otsika kwambiri ndende mtengo, zidzachitika makhalidwe sanali Newtonian madzi, m'malo mwake, pamene ndende mtengo chiwonjezeke, njira madzi zidzachitika pseudoplastic madzi makhalidwe.

Kusunga madzi kuchokera ku hydroxypropyl methyl cellulose ndi chimodzi mwazinthu zofunika kwambiri za hydroxypropyl methyl cellulose.Kuchuluka kwa evaporation kwa madzi mumatope osakanikirana ndi pulasitala kumakhudzidwa ndi kutentha kwa mpweya, kutentha ndi kuthamanga kwa mpweya.Chifukwa chake, munyengo zosiyanasiyana, kuphatikiza hydroxypropyl methyl cellulose kuchuluka komweko kwamadzi amadzimadzi kumakhala ndi zosiyana.

Nthawi zambiri, kukwezeka kwa mamasukidwe a hydroxypropyl methyl cellulose ndikomwe kumapangitsa kuti kusungirako madzi kukhale kwabwinoko, koma kuvulaza kwa mamasukidwe akayendedwe kakusungirako madzi kudzachepetsedwa pambuyo poti mamasukidwe akayendedwe apitilira 100,000 Mpa.s.Pamene kukhuthala kwa HYDROXYpropyl methyl cellulose kupitilira 100,000, kuchuluka kwa madzi osungirako kumatha kuwongolera kwambiri pakuwonjezera kuchuluka kwa hydroxypropyl methyl cellulose.

Pomanga mwatsatanetsatane, mphamvu yosungira madzi ya slurry imatha kusinthidwa posintha kuchuluka kwa hydroxypropyl methyl cellulose.Mankhwala a Hydroxypropyl methyl cellulose amatha kuthetsa vuto la kusunga madzi pansi pa kutentha kosalekeza.M'nyengo yotentha yopitilira, makamaka m'malo otentha komanso otopetsa komanso kupanga chromatography kumbali yadzuwa, HYDROXYpropyl methyl cellulose yapamwamba imafunika kuti pakhale kusungirako madzi kwa slurry.

Ubwino wapamwamba wa hydroxypropyl methyl cellulose, uli ndi malire abwino, magulu ake apamwamba a butyl ndi hydroxypropyl okosijeni omwe amagwira ntchito limodzi ndi ma fiber molecular chain structure olowa, amatha kukhala ndi gulu la methyl aldehyde ndi mpweya, komanso mtundu wamadzi wamtundu wa digito womangika. , kukhala omangidwa madzi ndi madzi a kubalalitsidwa, ndiye mogwira kulamulira kutentha kutentha chifukwa cha evaporation madzi, mkulu madzi posungira.

Ubwino wapamwamba wa hydroxypropyl methyl cellulose ukhoza kukwanira malo otayirira komanso ochita malonda mumatope osakanikirana ndi pulasitala, ndipo tinthu tating'onoting'ono tating'onoting'ono, tonyowa, toziziritsa, timapanga filimu yosanjikiza, chinyezi pang'onopang'ono ndikutulutsa pang'onopang'ono kuchokera m'munsi. kuyambika kwa organic pawiri kusakaniza kwa hydration zimachitikira, ndiye zimatsimikizira kugwirizana kwa zopangira nyonga mphamvu ndi kumakoka mphamvu.Mu kupitiriza kutentha chilimwe ntchito yomanga Choncho, kufika madzi kwenikweni, ayenera kukhala mogwirizana ndi Chinsinsi cha ndalama zina ndi khalidwe la mankhwala hydroxypropyl methyl cellulose, apo ayi, adzasonyeza wotopetsa mofulumira kwambiri ndi kuchititsa osakwanira hydration, kuchepetsa compressive. mphamvu, kugawanika, zatulukira makhalidwe monga metope kanthu ng'oma ndi kukayikira, komanso pamodzi ndi wogwira ntchito yomanga movutikira coefficient.Pamene kutentha kumatsika, kuchuluka kwa hydroxypropyl methyl cellulose kumatha kuchepetsedwa pang'onopang'ono ndipo zotsatira zomwezo zosungira madzi zimatha kutheka.

Ngati mapadi efa si anawonjezera, ndi chromatography watsopano simenti matope mwamsanga youma, kupanga konkire sangathe hydrated mwachibadwa, chifukwa simenti matope sangakhale olimba primed ndi kupeza bwino adhesion.Pa nthawi yomweyi, kuwonjezera pa cellulose ether kumapangitsa matope a simenti kukhala ndi ductility wabwino komanso kusinthasintha, komanso kumapangitsa kuti pakhale mphamvu yolumikizirana yamatope a simenti.

1, hydroxypropyl methyl cellulose kukula kwa tinthu

Kukula kwa tinthu ta cellulose ether kumawononga kusungunuka kwake.Kuchuluka kwa cellulose ether ndiko, kufulumira kwa kusungunuka kwake m'madzi ndi kukwezera makhalidwe ake osunga madzi.Chifukwa chake, kukula kwa tinthu ta cellulose ether kuyenera kuphatikizidwa pakufufuza kwa chimodzi mwazinthu zake.Ambiri, mapadi etere tinthu kukula 80 mauna zochokera.

2, hydroxypropyl methyl cellulose youma popanda mphamvu yokoka

Dry manic palibe mphamvu yokoka, imatanthawuza kutentha kwa manic manic cellulose efa, kutayika kwa khalidwe la mankhwala kunakhala chitsanzo choyambirira cha khalidwe lachitsanzo.Pakuti ena khalidwe la mapadi efa mu youma popanda mlingo mphamvu yokoka ndi mkulu kwambiri, kuchepetsa zigawo zikuluzikulu mu mapadi efa, kuvulaza zotsatira zenizeni za ntchito makampani kumtunda, komanso kusintha mtengo wogula.Kawirikawiri youma cellulose ether popanda mphamvu yokoka si upambana 5.0%.

3, hydroxypropyl methyl cellulose potaziyamu thiocyanate phulusa

Pakuti ena khalidwe la mapadi etere mu phulusa zili kwambiri, kuchepetsa mapadi efa mu zigawo zogwirizana, kuvulaza zotsatira zenizeni za ntchito makampani kumtunda, mapadi etere potaziyamu thiocyanate phulusa zili ndi kuganizira kwambiri makhalidwe ake. index mtengo.

4, hydroxypropyl methyl cellulose viscosity

Hydroxypropyl methyl cellulose kusungidwa kwa madzi ndi kukhuthala ndiye chinsinsi chowonjezera simenti ya cellulose cellulose ether mu kukhuthala kwake komanso kuphatikiza kwake.

5, hydroxypropyl methyl cellulose PH mtengo

Kukhuthala kwa zinthu za hydroxypropyl methyl cellulose kumachepa pang'onopang'ono pa kutentha kwakukulu kapena kusungidwa kwa nthawi yayitali, makamaka pazinthu zowoneka bwino kwambiri, chifukwa chake pH iyenera kukhala yochepa.Nthawi zambiri zimanenedwa kuti gulu la PH la cellulose ether liyenera kugwiritsidwa ntchito ngati 5-9.

6. Kutumiza kwa hydroxypropyl methyl cellulose

Ubwino ndi kuipa kwa kutumiza kwa hydroxypropyl methyl cellulose kumatha kukhudza mwachindunji momwe amagwiritsidwira ntchito pazomangira.Zinthu zazikulu zomwe zimawononga kufalikira kwa cellulose ether ndi1) ubwino wa zipangizo;(2) zotsatira zenizeni za kupha;(3) Kukonzekera kwaukadaulo wopanga;(4) organic zosungunulira kukonzekera;(5) Zotsatira zenizeni za zhonghe.

Malinga ndi momwe ntchito ikugwiritsidwira ntchito, kutumiza kwa cellulose ether kuyenera kukhala kosachepera 80%.

7, hydroxypropyl methyl cellulose akuganiziridwa kutentha

Hydroxypropyl methyl cellulose m'zigawo za simenti monga chinsinsi chowonjezeretsa zomatira, kukhuthala komanso kusunga madzi, kotero kukhuthala kwa mamasukidwe ndi kutentha kwa gel ndikofunikira kwambiri index ya hydroxypropyl methyl cellulose.Kutentha kumagwiritsidwa ntchito kuweruza mtundu ndi ndondomeko ya cellulose ether, ndipo mlingo wa m'malo mwa cellulose ether umagwirizana.

8. Kuonjezera apo, mchere ndi zotsalira zidzawononganso kutentha kwa guluu.Pamene kutentha kwa njira yamadzimadzi kumakwera, fiber polima imasowa madzi pang'onopang'ono, ndipo kukhuthala kwa njira yamadzimadzi kumachepa.Pamene zomatira zafika, polima imauma kwathunthu ndipo zomatira zimapangidwa.Choncho, kutentha kwa ntchito kwa mamembala a simenti nthawi zambiri kumakhala pansi pa kutentha koyambirira kwa guluu.Pansi pa muyeso uwu, kutentha kutsika, kukwezeka kwa viscosity, komanso zotsatira zenizeni za viscosification ndi kusunga madzi.