Ngā āhuatanga e pā ana ki te pupuri wai o ngā etera cellulose

He momo rauemi pūmua wairewa-wai ngā etera cellulose, e whakamahia whānuitia ana i roto i te hanga, te rongoā, te kai, ngā matū o ia rā me ētahi atu ahumahi. I roto i te mara o te hanga (pēnei i te moata maroke-whakaranu, te piripiri taera, te paura putty, me ētahi atu), ko tētahi o ngā āhuatanga tino nui ongā etera celluloseko tōna pupuri wai, arā, ka taea te pupuri i te wai i roto i te pūnaha i te wā e whakamahia ana hei ārai i te mimiti tere o te wai, kia pai ai te hanganga me te mahi whakamutunga o te rauemi. He maha ngā āhuatanga e pā ana ki te pupuri wai o ngā cellulose ethers, tae atu ki tōna hanganga matū, te nui o te whakakapinga, te matotoru, te nui o te tāpiri, te rahi o te matūriki, te tere whakarewa, me ngā āhuatanga taiao o waho.

1. Ngā āhuatanga o ngā etera cellulose anō

Te Tohu o te Whakakapinga (DS) me te ōritetanga

Ko te taumata o te whakakapinga e pā ana ki te maha toharite o ngā rōpū hydroxyl i roto i ngā ngota cellulose kua whakakapia ki ngā rōpū ether. I te nuinga o te wā, ko te teitei ake o te taumata o te whakakapinga, ko te kaha ake o te hydrophilicity o ngā cellulose ethers, ā, ko te pai ake o te kaha pupuri wai. Heoi anō, he uara nui anō hoki. Mā te uara teitei rawa ka nui rawa te wairewatanga me te hinuhinu nui, ka pā ki te pumau o te hanganga rauemi.

He mea nui anō hoki te ōritetanga o te whakakapinga. Mēnā he ōrite te whakakapinga, ka pumau ake te hanganga whatunga i hangaia e te cellulose ether i roto i te wai, ā, ka kaha ake te pupuri i te makuku.

Te matotoru

Ka pā tika te matotoru o te cellulose ether i roto i te wai ki tōna "kaha hiri" ki te makuku. I te nuinga o te wā, ka taea e ngā cellulose ether matotoru-teitei (pēnei i te HPMC, HEMC, me ētahi atu) te hanga i tētahi hanganga whatunga toru-ahu matotoru ake, ka whakawhāiti i te tere o te hekenga o te wai, ā, ka whakapai ake i te pupuri wai. Heoi, ki te nui rawa te matotoru ka pā ki te mahi a te rauemi, pērā i te uaua o te hanga, te paninga koretake rānei.

Taumaha ngota me te taumata o te whakakotahitanga

Ko te nui ake o te taumaha ngota o te cellulose ether, ko te kaha ake o te hononga i waenga i ngā wāhanga mekameka, ko te matotoru ake o te otinga colloidal kua hangaia, ā, ko te kaha ake o te pupuri wai. Heoi anō, me taurite te pupuri wai nui me te ngāwari o te wairewa.

Te rahi o te matūriki me te mararatanga

Ka pā te rahi o te matūriki o te paura mata cellulose ether ki tōna tere memeha me tōna horapa i roto i te wai. Ko te iti o te rahi o te matūriki, ko te tere o te memeha, ā, ko te māmā ake te tohatoha ōrite i roto i te rauemi, ā, ka pai ake te pupuri i te wai. Heoi, ki te mea he tino angiangi te paura, ka ngāwari te mimiti i te makuku me te haaputuputu i te wā rokiroki me te kawe, ka pā ki te mahi.

2. Whakamahia te tātai me ngā āhuatanga e pā ana ki te pūnaha

Te nui o te tāpiri

Ko te nui o te cellulose ether e tāpirihia ana ki te tauira ka pā tika ki te mahi pupuri wai. I te nuinga o te wā, i te pikinga o te nui tāpiri, ka tino pai ake te pupuri wai, engari i muri i te hipa i tētahi awhe, ka piki ake te pānga pikinga ki te mākū, ā, ka pā anō hoki ki te utu me te mahi hanga.

Te mimiti wai o ētahi atu rauemi mata

Ka pā anō hoki te mimiti wai o ngā rauemi mata pērā i te sima, te gypsum, te onepu, me ētahi atu ki te pupuri wai. Mā ngā rauemi he kaha te mimiti wai ka tere te mimiti i te wai mai i te pūnaha, ka tere ake te maroke, ā, ka nui ake te pānga pupuri wai o te cellulose ether. Nō reira, i roto i tēnei momo pūnaha, me whakamahi te cellulose ether he matotoru ake, he nui ake rānei te nui o te tāpiri.

Te ōwehenga wai-sima (W/C)

I roto i ngā rauemi hanga, ka pāngia hoki te pupuri wai o te cellulose ether e ngā panonitanga o te ōwehenga wai-sima. Ina iti te ōwehenga wai-sima, ka iti ake te wai i roto i te pūnaha, ā, ka nui ake te pēhanga pupuri wai o te cellulose ether; ina teitei te ōwehenga wai-sima, he nui te wai i roto i te pūnaha, ā, ka taea e te cellulose ether te whakaroa ake i te ngaronga o te wai.

3. Ngā āhuatanga taiao

Te pāmahana

Mā te pikinga o te pāmahana ka tere ake te mimiti o te wai, ā, ka nui ake ngā whakaritenga mō te pupuri wai o te cellulose ether. Ina koa i ngā taiao wera me te maroke, ki te ngoikore te mahi pupuri wai o te cellulose ether, ka ngawari te pakaru o te moata, te putty me ētahi atu rauemi hanga, te paura me te kore e ranea te kaha.

Me mōhio hoki ka rerekē anō te wairewatanga o te cellulose ether i te pāmahana tiketike, ā, ka piri ētahi momo, ka pā ki tana mahi whakahaere makuku.

Te haumākū me te tere o te hau

Ina iti te haumākū o te hau, ā, ina tere te hau, ka tere ake te mimiti o te wai, ā, ka nui ake te tūponotanga ka ngaro te wai i roto i te pūnaha, ā, me whakamahi he kaihoko pupuri wai whai hua ake hei whakahaere i tēnei. I roto i te taiao haumākū nui, he uaua te ngaro o te wai, ā, he iti noa te pēhanga pupuri wai o te cellulose ether.

4. Ngā āhuatanga hangahanga

Te matotoru o te paninga me te tikanga whakahaere

He nui ake te tūponotanga o te ngaronga o te wai i te paninga paparanga angiangi i te paparanga matotoru, nō reira, he nui ake te whakawhirinaki o te hanganga paparanga angiangi ki te cellulose ether me te pupuri wai nui. I taua wā anō, ko te ōritetanga o te whakaoho, te tikanga paninga (ā-ringa, ā-ringa rānei), te tere mimiti wai o te papa, me ētahi atu, ka pā ki te mahi tuturu o te pupuri wai.

Te mimiti wai o te papa

Hei tauira, he rerekē te mimiti wai o ngā papa pēnei i te pereki, te raima, me ngā papa gypsum, ka pā tēnei ki te kaha o te cellulose ether ki te pupuri i te wai. Ko te nui ake o te mimiti o te papa, ko te tere ake o te mimiti i te wai mai i te moata, ā, me tere te hanga e te cellulose ether he ārai pupuri wai.

Tete āhuatanga pupuri wai o te cellulose etherHe āhuatanga tēnei e whakatauhia ana e ngā āhuatanga maha. Ko tōna hanganga ake (pēnei i te nui o te whakakapinga, te matotoru, te rahi o te matūriki), te taiao whakamahi (te pāmahana, te haumākū, te tere o te hau) me te tauira hanga (te nui o te tāpiri, te ōwehenga wai-sima, ngā āhuatanga o te rauemi mata) ka pā nui ki tōna mahi. Nō reira, i roto i te tono, me whiriwhiri tika te momo me te nui o te cellulose ether kia rite ki te whakamahinga motuhake me te hoahoa tauira kia tutuki ai te pānga pupuri wai me te mahi hanga pai rawa atu.