Focus on Cellulose ethers

He pehea te pai o te cellulose ether e pa ana ki te mahi o te kumete?

Ka taea te whakamahi i te carboxymethyl cellulose me te methyl cellulose hei taonga pupuri wai mo te raima, engari he iti rawa te awenga pupuri wai o te carboxymethyl cellulose i tera o te methyl cellulose, me te carboxymethyl cellulose kei roto te tote konutai, no reira kaore e pai mo te raima. pari.He whakaroa, he whakaheke i te kaha o te raima o paris.Ko te Methyl cellulose he whakaurunga pai mo nga rawa cimentitious gypsum e whakauru ana i te pupuri wai, te whakakaha, te whakakaha, me te viscosifying, engari ko etahi momo ka whai hua whakaroa ina he nui te inenga.teitei ake i te carboxymethyl cellulose.Mo konei, ko te nuinga o nga rawa whakahiato gypsum gelling e whakamahi ana i te tikanga mo te whakakotahi i te carboxymethyl cellulose me te methyl cellulose, ehara i te mea ko o raatau ahuatanga anake (penei i te aukati o te carboxymethyl cellulose, te whakakaha o te methyl cellulose), me te whakamahi i o raatau painga noa. (pērā i te pupuri wai me te pānga mātotoru).Ma tenei ara, ka taea te whakapai ake i nga mahi pupuri wai o nga mea raima gypsum me te mahi matawhānui o nga mea raima gypsum, i te mea ka mau tonu te pikinga o te utu ki te waahi iti rawa.

 

Ko te pokey he tawhā nui o te mahi methyl cellulose ether.

 

Ko te tikanga, ko te teitei ake o te pokey, ko te pai ake o te pupuri wai o te moata gypsum.Heoi, ko te teitei ake o te pokey, ko te teitei ake o te taumaha ngota o te methyl cellulose ether, me te heke o tona whakarewatanga ka pa kino ki te kaha me te mahi hanga o te moata.Ko te teitei ake o te pokey, ka tino kitea te kaha o te whakapawera ki runga i te kumete, engari kaore i te rite tonu.Ko te teitei ake o te pokey, ka kaha ake te poiri o te kumete maku.I te wa o te hanga, ka kitea he piri ki te kirikiri me te piri nui ki te tïpako.Engari ehara i te mea pai ki te whakanui ake i te kaha o te hanganga o te kumete maku.I tua atu, i te wa e hanga ana, kaore e kitea te mahi anti-sag o te kumete maku.Engari, he tino pai te kaha o te hanga o te methyl cellulose ethers me te iti te pokey engari kua whakarereketia hei whakapai ake i te kaha hanga o te kumete maku.

 

Ko te pai he tohu mahi nui o te methyl cellulose ether.Ko te MC e whakamahia ana mo te paura paura maroke e hiahiatia ana he paura me te iti o te wai, me te pai hoki me 20% ki te 60% o te rahi o te matūriki kia iti iho i te 63m.Ka pa te pai ki te whakarewatanga o te methyl cellulose ether.Ko te MC nui te nuinga o te kirikiri, he ngawari ki te marara me te memeha i roto i te wai kaore he agglomeration, engari he tino puhoi te tere o te whakakorenga, na reira kaore e pai mo te whakamahi i te paura paura maroke.Ko etahi o nga hua o te kainga he kopa, ehara i te mea ngawari ki te marara me te memeha ki te wai, he ngawari ki te whakahiato.I roto i te kumete paura maroke, ka marara te MC ki waenga i nga rauemi cimenting penei i te whakahiato, te whakakii pai me te sima, a ko te paura pai anake ka taea te karo i te whakahiatotanga o te methyl cellulose ether ina ranu ki te wai.Ina tapirihia te MC ki te wai hei whakakore i nga agglomerates, he tino uaua ki te marara me te memeha.Ko te Coarse MC ehara i te mea moumou noa, engari ka whakaheke i te kaha o te rohe o te kumete.Ina utaina taua moata paura maroke ki tetahi waahi nui, ka tino heke te tere whakaora o te moata o te rohe, a ka puta nga kapiti na te rereke o nga wa whakaora.Mo te kumete rehu me te hanga miihini, he nui ake te whakaritenga mo te pai na te poto ake o te wa whakaranu.

 

Ko te pai o te MC he paanga ano ki tana pupuri wai.Ko te tikanga, mo te methyl cellulose ethers he rite tonu te potata engari he rereke te pai, i raro i te nui o te taapiri, ko te pai ake ka pai ake te painga o te pupuri wai.


Wā tuku: Feb-02-2023
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