He mahi nui tā ngā piripiri tāera i roto i te umanga hanga, e whakarato ana i ngā otinga pakari me te ataahua mō te whakapiri i ngā tāera ki ngā momo mata. Ko te whai huatanga o ngā piripiri tāera e whakawhirinaki ana ki te nui o ngā tāpiringa matua, arā, ko ngā polymer redispersible me te cellulose ngā kai matua e rua.
1. Ngā pūmua ka taea te whakamarara anō:
1.1 Te whakamāramatanga me ngā āhuatanga:
Ko ngā pūmua ka taea te whakamarara anō he paura tāpiri i whiwhihia mā te whakamaroke i ngā pūmua, ngā whakamarara rānei. Ko te tikanga, he mea hanga ēnei pūmua i te vinyl acetate, te ethylene, te acrylics, ētahi atu copolymers rānei. He ngāwari te whakamahi i te paura, ā, ka taea te whakauru ki ngā hanganga piri taera.
1.2 Whakapai ake i te piri:
Ka whakapai ake ngā pūmua ka taea te whakamarara anō i te piri o ngā piripiri taera ki ngā momo papa. Ka maroke te pūmua hei hanga i tētahi kiriata piri ngāwari, e hanga ana i tētahi hononga kaha i waenganui i te piripiri me te taera me te papa. He mea nui tēnei piri pai ake hei whakarite i te roa me te pumau o te mata taera.
1.3 Ngāwari me te ātete ki te pakaru:
Mā te tāpiri o te pūmua ka taea te whakamarara anō ka ngāwari te piri o te taera, ka taea ai e ia te urutau ki te nekehanga o te papa me te kore e pakaru. He mea nui rawa tēnei ngāwari i ngā taiao e puta ai ngā huringa pāmahana, ngā huringa hanganga rānei, hei ārai i te hanganga o ngā kapiti ka whakararu i te kounga o te mata o te taera.
1.4 Ātete wai:
Ka whai wāhi ngā pūmua ka taea te whakamarara anō ki te ātete wai o ngā piri taera. Ko te kiriata pūmua e hanga ana i te wā e maroke ana ka mahi hei ārai, hei ārai i te wai kei uru, ā, ka tiaki i te hononga. He mea nui rawa tēnei i ngā wāhi makuku pērā i ngā kaukau me ngā kīhini, he nui te makuku.
1.5 Te āheinga hanga me ngā hāora whakatuwheratanga:
He mea nui ngā āhuatanga rheological o ngā pūmua ka taea te whakamarara anō ki te mahi a ngā piri taera. Ka āwhina rātou ki te pupuri i te ōritetanga tika, ā, ka ngāwari hoki te whakamarara. Hei tāpiri, ka āwhina te pūmua ka taea te whakamarara anō i te wā tuwhera o te piri, ka hoatu he wā ki ngā kaiwhakauru ki te whakatika i te tūranga taera i mua i te whakapūmautanga o te piri.
2. Te pūtaurohi:
2.1 Te whakamāramatanga me ngā momo:
He pūhui taiao te cellulose i ahu mai i ngā pakitara pūtau tipu, ā, he maha ngā wā ka whakamahia hei tāpiri i roto i ngā piripiri taera. Ko ngā cellulose ethers, pērā i te methylcellulose (MC) me te hydroxyethylcellulose (HEC), e whakamahia pinepinetia ana nā te mea he pai rawa atu ō rātou āhuatanga pupuri wai me te whakamātotoru.
2.2 Te pupuri wai:
Ko tētahi o ngā mahi matua a te cellulose i roto i ngā piripiri taera ko tōna kaha ki te pupuri i te wai. Mā tēnei āhuatanga ka roa ake te wā tuwhera o te piripiri, ka roa ake te tukatuka. Ina mimiti te cellulose i te wai, ka hangaia he hanganga rite ki te tiēre e ārai ana i te maroke tere o te piripiri i te wā e pania ana.
2.3 Whakapai ake i te ngāwari o te tukatuka me te ātete ki te totohu:
Ka whakapai ake te cellulose i te ngāwari o te mahi a te piri taera mā te ārai i te totohu i te wā e pania poutū ana. Mā te pānga matotoru o te cellulose ka āwhina i te piri kia mau tonu tōna āhua ki te pakitara, kia piri ōrite ai ngā taera me te kore e hinga.
2.4 Whakaitihia te whakahekenga:
Ka taea e te cellulose te whakaiti i te mimiti o te piri taera i te wā e whakamaroke ana. He mea nui tēnei nā te mea ka taea e te mimiti nui te arahi ki te hanganga o ngā āputa me ngā kapiti, ka whakararu i te pumau whānui o te hononga.
2.5 Pānga ki te kaha kume:
Kei roto i ngā piri taera te cellulose hei whakanui ake i tō rātou kaha kume. He mea nui rawa tēnei i ngā wāhi e pāngia ana e ngā kawenga taumaha, e te pēhanga rānei, nā te mea ka whai wāhi ki te roa me te mahi o te mata taera.
3. Te pānga mahi tahi o te pūmua me te cellulose ka taea te whakamarara anō:
3.1 Hototahitanga:
He maha ngā wā ka whiriwhiria ngā pūmua me te cellulose ka taea te whakamarara anō nā te mea he hototahi ki a rātou anō, me ētahi atu kai anō hoki i roto i te hanganga piri taera. Mā tēnei hototahi ka whakarite kia ōrite te ranunga e whakanui ana i ngā painga o ia tāpiringa.
3.2 Te whakakotahitanga mahi tahi:
Mā te whakakotahitanga o te pūmua ka taea te whakamarara anō me te cellulose ka puta he pānga mahi tahi ki te hononga. Ko ngā kiriata ngāwari i hangaia mai i ngā pūmua ka taea te whakamarara anō ka tāpiri atu ki ngā āhuatanga pupuri wai me te matotoru o te cellulose, ka hua ake he piripiri kaha, pakari, ā, ka taea te whakamahi.
3.3 Te mahi whakarei ake:
Ka whakapai ake te mahi whānui o te piripiri taera i te whakakotahitanga o te polymer me te cellulose, ka pai ake te piri, te ngāwari, te ātete ki te wai, te ngāwari ki te tukatuka me te roa. He tino painga tēnei huinga, ā, he mea nui hoki mō ngā tono e hiahia ana kia piri pono, kia roa hoki te mau.
He mahi rautaki, kua whakamātauhia hoki te whakauru i ngā pūmua ka taea te whakamarara anō me te cellulose ki roto i ngā piri tāera i roto i te umanga hanga. He mahi nui tā ēnei tāpiringa ki te whakarei ake i te piri, te ngāwari, te ātete wai, te ngāwari ki te tukatuka me te roa o te wā. Ko te mahi tahi i waenga i ngā pūmua ka taea te whakamarara anō me te cellulose ka hua ake he hanganga piri taurite e tutuki ai ngā whakaritenga nui o ngā kaupapa hanga hou. I te haere tonu o te whanaketanga o te hangarau me te rangahau, e tumanakohia ana ka puta ake ētahi atu auahatanga i roto i te ao piri tāera, me te aro tonu ki te arotau i te mahi me te pumau o ēnei rauemi hanga nui.
Wā tuku: Hakihea-26-2023