I roto i te hanganga o te moata paura maroke, he iti noa te taapiri o te methyl cellulose, engari he taapiri nui ka taea te whakapai ake i te whakaranu me te mahi hanga o te moata.Ki te whakamaarama, tata katoa nga mea whakaranu makuku o te kumete ka kitea ma te kanohi tahanga ka tukuna e te cellulose ether.He pärönaki cellulose i whiwhi ma te whakamahi i te cellulose mai i te räkau me te miro, ka tauhohe ki te houra kawa, me te whakakoi ki te kaihoko whakakoi.
Nga Momo Methyl Cellulose Ether
A.Ko te Hydroxypropyl methylcellulose (HPMC) he mea hanga mai i te miro parakore tino parakore hei rauemi mata, he mea whakahiato i raro i nga tikanga kawakore.
B.Ko te Hydroxyethyl methyl cellulose (HEMC), he ether cellulose kore-ionic, he paura ma, he kakara, he kore reka.
C.Ko te Hydroxyethylcellulose (HEC) he surfactant kore katote, he ma te ahua, he hongi, he kore reka, he ngawari te rere o te paura.
Ko nga mea i runga ake nei ko nga etera cellulose kore-katote, me nga etera cellulose katote (pēnei i te carboxymethyl cellulose (CMC)).
I te wa e whakamahia ana te moata paura maroke, na te mea karekau te katote cellulose (CMC) i te aroaro o nga katote konupūmā, he uaua ki te whakamahi i roto i nga punaha whakaraera parakore me te ciment me te kotakota riki hei rauemi cimenting.I etahi waahi i Haina, Ko etahi o nga pakitara o roto ka tukatukahia me te maaka kua whakarereketia hei mea sima matua me te paura Shuangfei hei whakakii i te whakamahi CMC hei whakamaroke, engari na te mea he ngawari tenei hua ki te koriri me te kore he wai-atete, ka whakakorea haeretia. na te maakete.I tenei wa, ko te ether cellulose te nuinga e whakamahia ana i Haina ko HPMC.
Kei te nuinga whakamahia Cellulose ether hei kaihoko pupuri wai, me te thickener i roto i ngā rauemi e hāngai ana ciment.
Ka taea e tana mahi pupuri wai te aukati i te tïpako kia tere rawa te ngongo o te wai me te aukati i te whakaetonga o te wai, kia pai ai te nui o te wai o te sima i te wa e hydrated ai.Tangohia te mahi raima hei tauira.I te wa e whakamahia ana te slurry sima noa ki te mata o te tïpako, ka tere te mimiti o te tïpako maroke me te maiengi i te nui o te wai mai i te slurry, a ko te paparanga slurry ciment e tata ana ki te tïpako ka ngaro te hydration.Na reira, e kore e taea anake te hanga i te kiri sima me te kaha piri ki runga i te mata o te tïpako, engari he ngawari hoki te paheketanga me te mahanga wai, kia ngawari te taka o te paparanga slurry sima.I te wa e angiangi ana te grout, he ngawari hoki te hanga kapiti i roto i te grout katoa.Na reira, i nga wa o mua ki te whakakikorua i te mata, ko te nuinga o te waa ka whakamakukuhia nga mea turanga ki te wai i te tuatahi, engari he nui te mahi me te pau o te waa, he uaua ki te whakahaere i te kounga o te mahi.
Ko te tikanga, ka piki te pupuri wai o te slurry ciment ki te pikinga o te ihirangi o te cellulose ether.Ko te nui ake o te viscosity o te ether cellulose taapiri, ka pai ake te pupuri wai.
I tua atu i te pupuri i te wai me te whakamaroketanga, ka pa ano te cellulose ether ki etahi atu ahuatanga o te kumete ciment, penei i te whakaheke, te urunga o te hau, me te whakanui ake i te kaha here.Ko te cellulose ether e whakaroa ana i te whakatakotoranga me te whakamaroke o te sima, na reira ka roa te wa mahi, na reira ka whakamahia i etahi wa hei kaiwhakahaere huinga.
Na te whanaketanga o te kumete whakamaroke-whakaranu, kua noho te cellulose ether hei whakaurunga moata sima nui.Heoi ano, he maha nga momo me nga whakaritenga o te cellulose ether, ka rere ke tonu te kounga i waenga i nga puranga.
1. Ko nga ahuatanga mahi o te moata kua whakarereketia e tino hono ana ki te whanaketanga pokey o te cellulose ether.Ahakoa ko nga hua me te pokey whakaingoa nui he tino pokey whakamutunga, na te puhoi o te whakakorenga, he roa te wa ki te whiwhi i te pokey whakamutunga;i tua atu , Ko te etera cellulose me nga matūriki he nui ake te roa ki te whiwhi i te viscosity whakamutunga, na te hua ki te pokey teitei e kore e tikanga pai ake te mahi.
2. Na te iti o te tohu o te polymerization o te cellulose ether raw rauemi, he iti ano te pokey o te cellulose ether.
3. He mea tika ki te tirotiro i te hoko, te tukanga whakaputa me te tirotiro wheketere ki te karo i nga rereketanga o te kounga.
Wā tuku: Feb-17-2023