Te Pūtauora Waikawa (HEC)He pūhui wai-wai kore-ionic te mea nei, he mea whakarerekē matū mai i te cellulose tūturu. He pai tōna wairewatanga wai, he matotoru, he pupuri wai, ā, he pai hoki ōna āhuatanga hanga kiriata. I roto i te peita rapa, he mea nui te hydroxyethyl cellulose, ā, e whakamahia whānuitia ana i roto i ngā paninga pakitara o roto, o waho hoki hei whakamatotoru, hei whakau, hei whakamarara, hei whakatārewa me te whakapai ake i te ngāwari o te mahi.
1. Ngā āhuatanga matua o te hydroxyethyl cellulose
He pai te wairewatanga wai: Ka taea te wairewa tere i te HEC ki te wai matao me te wai wera hei hanga i tētahi otinga colloidal mārama, ōrite hoki.
Te pānga matotoru mārama: Ka taea e ia te whakanui ake i te matotoru o te peita rapa me te whakapai ake i tōna mahi me te whakataurite.
Te pumau kaha o te whakatārewatanga: Ka taea e ia te aukati i te whakatōnga o ngā tae me ngā whakakī, me te whakapai ake i te pumau rokiroki o te peita rapa.
Ngā āhuatanga hanga kiriata pai: Ka āwhina ki te hanga i tētahi kiriata paninga matotoru, me te whakapai ake i te kī me te papatahi o te kiriata peita.
Hototahi kaha: He pai te hototahi ki te maha o ngā momo whakaehunga, ngā tae, ngā whakakī me ētahi atu tāpiringa.
2. Te tūranga o te hydroxyethyl cellulose i roto i te peita latex
Whakamātotoru: Whakahaerehia ngā āhuatanga rheological o te peita, ārai i te maturuturu me te tauhiuhi, me te whakapai ake i te mahi paraihe me te hurihuri.
Ārai pupuri wai: Ārai i te ngaromanga o te wai i roto i te peita i te wā hanga, ā, whakapai ake i te kounga hanga kiriata i te wā whakamaroke.
Kaiwhakaū: Whakapai ake i te marara me te pumau o te whakaemulsion me te whakakī tae i roto i te tauira hei ārai i te paparanga me te whakahiato.
Whakapai ake i te mahi hanga: Whakapai ake i te hinu whakahinuhinu me te maeneene o te hanga kia maeneene ake, kia maori ake hoki te paraihe.
3. Tikanga whakamahi
3.1. Tikanga horapa tika o te paura maroke
E pā ana ki ngā āhuatanga whakaputa me ngā taputapu horapa tere-teitei:
Tāpirihia te nui kua tohua o te wai ma ki te tāke whakaranu;
Tīmatahia te whakaoho tere tere, ka tāpirihia mārire te paura maroke HEC;
Me whakaoho tonu mō te 15-30 meneti kia tino mākū te HEC, kia marara hoki;
Waiho kia tū mō te 1-2 hāora (neke atu rānei) kia pupuhi rawa;
Whakaohokia anō kia memeha rawa kia puta he wai mātotoru, mārama hoki;
Tāpirihia ētahi atu whakapūkara, ngā tae, ngā tāpiringa, me ētahi atu hei hanga peita rapa.
3.2. Tikanga wai whaea kua whakakātia i mua
He pai mō te whakaputa papatipu, he ngāwari ki te whakahaere me te ine:
Whakamākuhia te HEC ki te wai i te tuatahi;
Whakamahana āta ki te 60-70℃ me te whakaoho tere iti hei whakatere i tōna memeha;
Whakahohehia rānei te tukanga whakarewa mā te tāpiri i tētahi iti o te kawakore (pērā i te wai haukini);
I muri i te whakarewatanga, ka hangaia he wai whaea kua oti te whakawera i mua i te gelatin, ka taea te tāpiri ki te peita rapa ina hiahiatia.
4. Te taunakitanga mō te horopeta
Ko te nui o te hydroxyethyl cellulose e tāpirihia ana ki te peita latex he 0.2%~1.0% (i runga i te kounga o te hua kua oti), ka whakarerekētia kia rite ki te matotoru e hiahiatia ana me te mahi hanga.
He whānuitia ngā kōwhiringa mō te matotoru (e ahu mai ana i te 2% wairewa), mai i ngā tekau mPa·s ki ngā rau mano mPa·s. Ko ngā mea e whakamahia whānuitia ana ko:
30,000~60,000 mPa·s: mō ngā peita rapa matotoru reo me te matotoru teitei;
100,000~200,000 mPa·s: mō ngā peita matotoru, ngā peita whakapiri rānei.
5. Ngā Whakatūpato
He mea nui te raupapatanga o te mararatanga: me marara ōrite te paura maroke kia kore ai e piri te puehu me te uaua ki te whakarewa.
Ārai i te kirikiri: I te wā e tāpirihia ana te HEC, me mau tonu te whakaoho tere kia kore ai e pā te haaputupututanga o te paura ki te whakarewanga.
Te pumau o te rokiroki: Me penapena te otinga HEC i te pāmahana rūma hei karo i te pānga roa ki te pāmahana teitei, ki te taiao waikawa me te kawakore kaha rānei.
Whakamātautau hototahitanga: Ka rerekē pea te hototahitanga o HEC me ngā whakamomona me ngā tāpiringa mai i ngā kaihanga rerekē, ā, me whakatau te tātai i muri i te whakamātautau.
Hei whakamātotoru wairewa-wai whai hua, whai hua, ā, he hoa hoki ki te taiao, ko te whakamahinga ote hydroxyethyl cellulose i roto i te peita rapaKa whakaratohia he wheako whakahaere rheological me te hanga pai ki te hua. Mā te whiriwhiri tika i te taumata matotoru, te whakahaere i te tikanga tāpiri me te ōwehenga tātai, ka taea te whakapai ake i te mahi a te peita rapa. Mā te whai tonu i te tiaki taiao me te mahi i roto i te umanga paninga hoahoanga, ka nui ake te māramatanga o te uara tono o te HEC.
Wā tuku: Mei-31-2025