Ko ngā etera cellulose he momo pūmua wairewa-wai taumaha-ngota teitei i ahu mai i te cellulose. Kua whakamahia whānuitia ēnei i roto i te umanga hanga hei ranunga whakarei ake i te mahi mō ngā hua e hangai ana ki te sima me te gypsum. I roto i ēnei, ko te hydroxypropyl methylcellulose (HPMC) tētahi o ngā etera cellulose tino nui mō te putty.
Hei kaihanga HPMC ngaio, ka whakamāramahia e mātou ki a koe te mahi a te cellulose ether i roto i te putty. Ko te tumanako ka whai hua mai tēnei pou i ētahi māramatanga mō te hunga e hiahia ana ki tēnei kaupapa.
1. Te pupuri wai
Ko tētahi o ngā mahi matua a te cellulose ether mō te putty ko te pupuri i te wai. He rauemi rite ki te whakapiri te putty e whakamahia ana hei whakakī i ngā āputa me ngā kapiti i ngā mata pērā i ngā pakitara, ngā tuanui me ngā papa. He wāhanga nui te wai i roto i ngā hanganga putty nā te mea ka āwhina i te whakarewa i ngā kai me te whakarato i te ngāwari ki te mahi. Heoi, ki te nui rawa te wai ka maroke te putty, ka tere te mimiti, ka arahi ki te pakaru me te kounga iti o te whakaotinga.
Ka hangaia he hanganga rite ki te tiēre e te cellulose ether, inā koa ko te HPMC, ina konatunatua ki te wai, ka taea te whakapai ake i te pupuri wai o te putty. Ka taea e ngā rōpū hydrophilic o te HPMC te mimiti i ngā ngota wai me te ārai i a rātou kia kaua e tere te mimiti. Mā tēnei āhuatanga ka roa ake te wā mahi me te kakano putty ōrite ake.
2. Whakapai ake i te ngāwari o te mahi
Ko tētahi atu mahi nui o te cellulose ether mō te putty ko te whakapai ake i tōna ngāwari ki te mahi. Ko te ngāwari ki te mahi ko te ngāwari o te paninga me te hanga i te putty kia maeneene ai te mata. Ka taea e te cellulose ether te whakarei ake i te rere me te horapa o te putty mā te whakaiti i te waku i waenga i ngā matūriki me te whakanui ake i te hinu whakahinuhinu o te pūnaha.
Mā te tāpiri i ngā cellulose ether ki ngā putty ka whakaitihia te mau o te hau i puta mai i te whakaranu, ka hua ake ai he mata koretake me te piri kino. Mā te whakamahi i ngā cellulose ether ka whakapai ake i te maeneene me te ōrite o te putty, ka hua ake he mahi pai ake me te mutunga ataahua ake.
3. Whakanuia te piri
Ko tētahi atu painga o te cellulose ether mō te putty ko te whakapiki i te piri. Ka whakamahia ngā putty hei whakakī i ngā āputa me ngā kapiti, hei hanga hoki i tētahi mata maeneene mō te peita, mō ētahi atu whakaotinga rānei. Nō reira, me kaha te putty ki te piri ki te papa, ā, me whakarato i tētahi hononga kaha.
Ka taea e te cellulose ether, inā koa ko te HPMC, te whakapai ake i te piri o te putty mā te hanga i tētahi kiriata ki te mata o te papa. Ka whakarei ake te kiriata i te hononga i waenga i te putty me te papa, ā, ka āwhina ki te whakakī i ngā hapa o te mata. Ka hua ake tēnei i tētahi hononga kaha ake, ā, ka roa ake te mau o te āhua.
4. Whakaitihia te whakahekenga
He raruraru noa te mimiti o te putty, nā te mea ka pakaru pea, ka iti hoki te kounga o te whakaotinga. Ka āwhina ngā cellulose ethers ki te whakaiti i te mimiti o te putty mā te whakapai ake i te pupuri wai me te ngāwari o te mahi o te putty. Ka pōturi ake te mimiti o te wai, ka maeneene ake te kakano o te putty, ā, ka ārai i te hanga o ngā kapiti me ngā āputaputa i te wā e whakamaroke ana.
Hei tāpiritanga, ka taea hoki e te cellulose ether te whakaiti i te mimiti kirihou o te putty, arā, te mimiti e puta ana i te wā tīmatanga. He mea nui rawa tēnei āhuatanga mō ngā putty tere-mutunga, nā te mea ka āwhina ki te pupuri i te āhua o te mata, ā, ka ārai i te hanganga o ngā kapiti.
5. Te roa o te mau
Hei whakamutunga, ka taea e ngā cellulose ethers te whakapai ake i te pakari o te putty mā te whakarei ake i tōna ātete ki ngā āhuatanga taiao pēnei i te huringa pāmahana, te haumākū me te pakū. Ka taea e ngā āhuatanga hanga kiriata o te cellulose ether te whakarato i tētahi ārai tiaki i runga i te mata o te putty hei ārai i te urunga mai o te wai me ētahi atu poke.
Heoi anō, ka taea hoki e te cellulose ether te whakapai ake i te kaha piko me te ātete pānga o te putty, kia ātete ake ai ki te pakaru me te pakaru. He mea nui rawa atu tēnei āhuatanga mō ngā tono e maha ana te whakamahi, te pānga rānei o ngā putty, pērā i ngā mahi whakatika, i ngā whakaotinga whakapaipai rānei.
hei whakamutunga
Hei whakamutunga, ko ngā cellulose ethers, inā koa ko te HPMC, he mea nui hei whakarei ake i te mahi a te putty. Ko ā rātou mahi ko te pupuri wai, te whakapai ake i te ngāwari o te tukatuka, te whakanui ake i te piri, te whakaiti i te whakahekenga me te whakapakari i te pakari. Mā te whakamahi i ngā cellulose ethers ka āwhina i te whakapai ake i te kounga me te mahi whānui o te putty, ka hua ake he whakaotinga pai ake me te roa ake o te ora. Hei kaihanga HPMC ngaio, e whakapau kaha ana mātou ki te whakarato i te cellulose ether kounga teitei me te tautoko hangarau ki ngā kiritaki.
Te wā tuku: Hōngongoi-20-2023