Te pūhui hauwaioraitiri (HEC)He pūmua kore-ionic, wairewa-wai te HEC, i hangaia mai i te cellulose tūturu mā te etherification. Nā te mea ka hangaia he otinga colloidal mārama, pumau ina rewa ki te wai, he whānuitia te whakamahinga i roto i ngā paninga, ngā matū whare, ngā rauemi hanga, te keri hinu, me ētahi atu mara. Ko te pānga o te HEC ki te matotoru o te pūnaha tētahi o ana mahi tino nui, ā, he maha ngā āhuatanga e pā ana ki tēnei awe, tae atu ki te hanganga ngota, te wairewa, me ngā āhuatanga o waho.
1. Te whanaungatanga i waenga i te hanganga ngota me te matotorutanga
Ko te mekameka matua o te HEC he tuara cellulose e honoa ana e ngā here β-1,4-glucose, me ngā rōpū hydroxyl i runga i ngā waeine glucose e whakakapia ana e ngā rōpū hydroxyethyl. Ko te nui o te whakakapinga (DS) me te whakakapinga molar (MS) e whakatau ana i te wairewatanga o te ngota i roto i te wai me te ngāwari o ngā wāhanga mekameka. Ko ngā mekameka ngota roa ake (te taumaha ngota teitei ake) me te nui o te whakakapinga taurite ka hua ake he maha atu ngā raruraru i muri i te whakamakuku, ka nui ake te matotoru o te pūnaha. Ko te HEC taumaha ngota teitei ka puta he matotoru teitei ake i ngā momo taumaha ngota iti i te kukū kotahi.
2. Ka pāngia te matotoru e ngā tukanga whakarewa me te wai
E toru ngā wāhanga o te tukanga whakarewatanga o te HEC i roto i te wai: te whakamakuku, te horapa, me te whakamakuku. Ina pā te paura HEC ki te wai, ka mimiti tonu te paparanga o waho i te wai, ka whānui hei hanga i te kiriata, ā, muri iho ka whakamakuku haere te paparanga o roto. I muri i te whakamakuku katoa, ka horapa ōrite ngā ngota mekameka roa ki roto i te wai, ka hanga he otinga me te hanganga whatunga ā-wāhi e aukati ana i te rere o ngā ngota wai, ā, ka piki ake te matotoru o te otinga. Mena kāore i oti te whakarewatanga, ka puta rānei te kohikohinga, kāore ngā mekameka ngota e tino tuwhera, ka iti te matotoru.
3. Te whanaungatanga i waenga i te kukū me te matotoru
I te awhe kukū iti, ka piki haere te matotoru o te HEC i te āhua rārangi me te piki haere o te kukū. Ina tae te kukū ki te kukū honohono nui, ka nui ake ngā honohono i waenganui i ngā mekameka ngota, ā, ka piki haere te matotoru. Ka taea e ngā kukū tiketike rawa te whakaatu i te āhua rite ki te tiēre o te otinga, ka tino whakaiti i te rere o te wai. Nō reira, i roto i ngā mahi whaihua, me whiriwhiri te horopeta tika i runga i ngā whakaritenga pūnaha kia tutuki ai te matotoru e hiahiatia ana.
4. Ngā Pānga o ngā Āhuatanga o Waho ki te Matatini
Te Pāmahana: Ka heke te matotoru o ngā wairewa HEC i te pikinga o te pāmahana. Nā te mea ka kaha ake te nekehanga wera o ngā mekameka ngota i ngā pāmahana teitei, ka whakaiti i te pumau o te paparanga wai. pH: He pumau te matotoru o te HEC i roto i te awhe pH o te 2-12, engari ka taea e ngā āhuatanga waikawa me te kawakore tino kino te whakararuraru i ngā mekameka ngota, ka heke te matotoru.
Ngā Tote me ngā Whakarewa: Hei pūmua kore-ionic, he pumau te HEC i te aroaro o ngā irahiko. Heoi, ka pāngia te makuku e te nui o ngā tote, ngā whakarewa rauropi rānei, ā, ka whakaitihia te matotoru.
5. Te Whakahaere Matatini i roto i ngā Pūnaha Rerekē
Ahumahi Paninga: Ka whakaratohia e HEC te matotoru tono me ngā āhuatanga whakataurite i roto i ngā peita rapa, hei ārai i te taunga o te tae me te whakakī.
Ngā Matū o te Whare: I roto i te hopi horoi ringa me te hopi horoi makawe, ka hoatu e te HEC he āhua maeneene, he āhua whakau hoki.
Ngā Rauemi Hanga: I roto i te moata sima, ka mau te wai me te ōrite o te HEC, ka whakapai ake i te mahi tono.
Te Keri Hinu: Ka whakamahia te HEC i roto i ngā wai keri hei whakarerekē i te rheology me te whakarei ake i te kaha kawe maramara.
Ka whakanuia e te Hydroxyethyl cellulose te matotoru o te pūnaha mā te whakamakuku, te honohono, me te hanganga whatunga ā-wāhi o ōna ngota mekameka roa i roto i te wai. Kāore te matotoru e pā ana ki te taumaha ngota ngota o te HEC, te taumata o te whakakapinga, me te kukū anake, engari ka pāngia hoki e te pāmahana, te pH, me te hanganga pūnaha. I roto i te hoahoa whakatakotoranga,te whiriwhiri tika i te momo HECā, mā te inenga ka taea te whakahaere tika i ngā āhuatanga rheological o te hua, ka tutuki ai ngā momo pānga mai i te angiangi ki te matotoru.
Wā tuku: Akuhata-08-2025