Ko P putty he taonga nui mo te hanga pakitara, me ana mahi e pa tika ana ki te taapiri o te peita me te kounga hanga. I roto i te hanganga o Puty, he taapiri taapiri a Cellulose e whai waahi nui ana.Hydroxypropyl methylcellulose (HPMC), ano he mea tino nui rawa atu o nga mahi cellulose whakamahia, ka pai ake te whakapai ake i te tirohanga, te mahinga hanga me te rokiroki me te rokiroki o PuTy.
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1.. Tuhinga o mua o te hydroxypropyl methylcellose
Ko te HPMC he polymer wai-kore-koiora me te matotoru o te wai, te pupuri i te wai, te wehewehe, te whakaheke me te hanga-kiriata. Ko tana tirohanga e pa ana ki te tohu o te whakakapinga, te tohu o te polymerization me nga tikanga ngoikore. Ko te otinga o te awangawanga o te awangawanga o te awangawanga o te wai pseudoplastic, ara, ka heke te reiti o te kutikuti, he mea nui ki te hanga Putty.
2. Tuhinga o mua
2.1 Te Pakanga Tino
Ko te HPMC te tikanga nui i muri i te whakakore i te wai. Ko tana huanga matotoru e kitea ana i enei waahanga:
Ko te whakapai ake i te thixotropy o Putty: Ka taea e te HPMC te pupuri i te tirohanga nui i te wa e arai ana kia kore e tirotirohia, ka whakapiki i te mahi hanga.
Te whakarei ake i te huringa o Putty: Ka taea e te HPMC te whakapai ake i te ngoikore o te putty, ka maeneene haere me te whakaiti i te aukati.
Ka pa ki te kaha whakamutunga o te Putty: Ko te hua matotoru o te HPMC e hanga ana i nga taonga me nga taonga i roto i te putty me te karo i te wehenga me te whakapai ake i nga mahi whakapakeke i muri i te hanga.
2.2 Te Paanga i runga i te Tukanga Hydration
Ko te HPMC he pai rawa te wahanga o te wai, ka taea te whakaiti i te whakahekenga tere o te wai i te papa putty, na reira ka roa te heke o te putty me te whakapai ake i te kaha o te Putty. Heoi, ko te tino nui o te huringa o te HPMC ka pa ki te hau o te hau me te tere o te horopeta, ka hua mai i te kaha hanga. Na reira, ko te nui o te HPMC me whakarite te mahi i te wa e karo ana i nga paanga kino i te waa whakapakeke.
2.3 Te hononga i waenga i te taumaha o te hpmc me te tirohanga o Putty
Ko te teitei o te taumaha o te HPMC, ko te nui o te whakamaaro o tana otinga wai. I roto i te putty, te whakamahinga o te HPMC tirohanga nui (penei i te momo me te tirotiro nui atu i te 100,000 mba · s) ka tino whakapai ake i te pupuri i te wai me te aukati i te riihi . Na reira, i raro i nga whakaritenga hanga rereke, me te rapu i te HPMC me te tono tika kia taurite te pupuri i te wai, te mahi mahi me te mahi whakamutunga.
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2.4 Te Whakaputanga o te HPMC i runga i te Tirohanga Putty
Ko te nui o te awangawanga i te awangawanga he nui te paanga o te tirohanga o Putty, a ko te inenga i waenga i te 0.1% me te 0.5%. I te wa e iti ana te horopeta o te HPMC, he iti noa te paanga o te Putty, a kaore pea e pai ki te whakapai ake i te whaikaha me te pupuri i te wai. I te wa e tiketike rawa te horopeta, he nui rawa te ahua o te putty o te putty, ka piki ake te kaha o te aukati, a ka pa pea te tere maroke o te Putty. Na reira, he mea tika kia tohua te nui o te HPMC e tika ana ki te tauira o te Putty me te taiao hanga.
Ko te methylcropyl methylcellulose e whai waahi ana ki te matotoru, te pupuri i te wai me te whakapai ake i te mahi i Puty. Te taumaha o te koriri, te tohu o te whakakapi me te nui taapiri oHPMCka pa ki te tirohanga o Putty. Ko te nui o te HPMC ka taea te whakapai ake i te punaha me te aukati wai o Putty, i te mea ka nui te uaua o te hanga. Na reira, i roto i te tono tuuturu o Puty, ko nga ahuatanga o te tirohanga me nga whakaritenga hangahanga o te HPMC me tino whakatikatika kia whiwhi ai i te mahinga pai me te kounga whakamutunga.
Te wa tuku: Feb-10-2025