1 Kupu Whakataki
Mai i te taenga mai o ngā tae tauhohe, ko te konutai alginate (SA) te whakapiri matua mō te tānga tae tauhohe ki runga i ngā papanga miro.
Mā te whakamahi i ngā momo e toru ongā etera celluloseKo te CMC, te HEC me te HECMC i whakaritea i te Upoko 3 hei whakapiri taketake, i pania ki te tānga tae tauhohe.
putiputi. I whakamatautauria ngā āhuatanga taketake me ngā āhuatanga tā o ngā whakapiri e toru, ā, i whakaritea ki te SA, ā, i whakamatautauria hoki ngā muka e toru.
Ngā āhuatanga tā o ngā huaora etera.
2 Wāhanga whakamātautau
Ngā rauemi whakamātautau me ngā rongoā
Ngā rauemi mata me ngā rongoā i whakamahia i roto i te whakamātautau. I roto i ēnei, kua tangohia, kua whakatikatikaina ngā papanga tā tae tauhohe, me ētahi atu.
He raupapa miro parakore kua oti te tukatuka i mua, he matotoru 60/10cm×50/10cm, he miro whatu 21tex×21tex.
Te whakarite i te whakapiri tā me te whakapiri tae
Te whakarite i te whakapiri tā
Mō ngā whakapiri taketake e whā o SA, CMC, HEC me HECMC, e ai ki te ōwehenga o ngā ihirangi totoka rerekē, i raro i ngā āhuatanga whakaohooho
Kātahi ka ata tāpirihia te whakapiri ki roto i te wai, me te whakaoho tonu mō tētahi wā, kia rite te whakapiri taketake, kia mārama hoki, kati te whakaoho, ka whakatakoto ki runga i te oumu.
I roto i te karāhe, waiho kia tū mō te pō.
Te whakarite i te whakapiri tā
Tuatahi, whakarewahia te urea me te tote ārai-tae S ki te iti o te wai, kātahi ka tāpirihia ngā tae tauhohe kua rewa ki te wai, whakamahanahia, ka whakaohokia ki roto i te kaukau wai mahana.
I muri i te whakaoho mō tētahi wā, tāpirihia te wai tae kua tātarihia ki te whakapiri taketake, ka whakaohokia kia ōrite. Tāpirihia te wairewa kia tīmata rā anō te tā.
He pai te konutai paikāpōnati. Ko te tauira o te whakapiri tae ko: te tae tauhohe 3%, te whakapiri taketake 80% (he totoka te ihirangi 3%), te konutai paikāpōnati 3%,
Ko te tote ārai-parahanga S he 2%, ko te urea he 5%, ā, hei whakamutunga ka tāpirihia te wai kia 100%.
tukanga tā
Te tukanga tā tae tauhohe o te papanga miro: te whakarite i te whakapiri tā → te tā pae aukume (i te pāmahana rūma me te pēhanga, tā 3 ngā wā) → te whakamaroke (105℃, 10min) → te korohū (105±2℃, 10min) → te horoi wai matao → te horoi wera ki te wai (80℃) → te kohua hopi (ngā maramara hopi 3g/L,
100℃, 10min) → horoi wai wera (80℃) → horoi wai matao → whakamaroke (60℃).
Whakamātautau mahi taketake o te whakapiri taketake
Whakamātautau tere whakapiri
E whā ngā whakapiri taketake o SA, CMC, HEC me HECMC me ngā ihirangi totoka rerekē i whakaritea, ā, ko Brookfield DV-Ⅱ
I whakamātauria te matotoru o ia whakapiri he rerekē te nui o te totoka mā te whakamahi i te ine matotoru, ā, ko te pihi whakarerekētanga o te matotoru me te kukū ko te tere hanganga whakapiri o te whakapiri.
piko
Te Rheology me te Tānga Matatini
Rheology: I whakamahia te rheometer hurihuri MCR301 hei ine i te matotoru (η) o te whakapiri taketake i ngā tere kutikuti rerekē.
Ko te pihi huringa o te tere kutikuti ko te pihi rheological.
Taupū matotoru tā: Ko te taupū matotoru tā e whakaatuhia ana e PVI, PVI = η60/η6, ko η60 me η6 ia.
Ko te matotoru o te whakapiri taketake i inehia e te mita matotoru Brookfield DV-II i te tere hurihuri kotahi o te 60r/min me te 6r/min.
whakamātautau pupuri wai
Paunahia te 25 karamu o te whakapiri taketake ki roto i tētahi kapure 80mL, ka tāpiri mārire atu i te 25mL o te wai matao, me te whakaoho tonu kia puta te ranunga.
Ka whakaranua kia ōrite. Tangohia he pepa tātari tauanga, ko te roa × te whānui he 10cm × 1cm, ka tohua tetahi pito o te pepa tātari ki te rārangi tauine, kātahi ka whakaurua te pito kua tohua ki roto i te whakapiri, kia ōrite te rārangi tauine ki te mata o te whakapiri, ā, ka tīmata te wā i muri i te whakaurunga o te pepa tātari, ā, ka tuhia ki te pepa tātari i muri i te 30 meneti.
Te teitei e piki ake ai te makuku.
4 Whakamātautau Hototahi Matū
Mō te tānga tae tauhohe, whakamātauria te hototahitanga o te whakapiri taketake me ētahi atu tae i tāpirihia ki te whakapiri tā,
Arā, ko te hototahitanga i waenga i te whakapiri taketake me ngā wāhanga e toru (urea, konutai paikāpōnate me te tote ārai-waikura S), ko ngā mahi whakamātautau motuhake koia ēnei:
(1) Hei whakamātautau i te matotoru tohutoro o te whakapiri taketake, tāpirihia te 25mL o te wai whakapūkara ki te 50g o te whakapiri tānga taketake, whakaohokia kia ōrite, kātahi ka ine i te matotoru.
Ko te uara matotoru kua whiwhihia ka whakamahia hei matotoru tohutoro.
(2) Hei whakamātautau i te matotoru o te whakapiri taketake i muri i te tāpiri i ngā momo kai (urea, konutai paikāpōnate me te tote ārai-waikura S), tāpirihia te 15% kua oti te whakarite
Te otinga urea (wāhanga papatipu), te otinga tote S ārai-waikura 3% (wāhanga papatipu) me te otinga konutai paikāpōnati 6% (wāhanga papatipu)
I tāpirihia he 25mL ki te 50g o te whakapiri taketake, ā, i whakaohokia kia ōrite, ā, i waiho mō tētahi wā, kātahi ka ine i te matotoru o te whakapiri taketake. Hei whakamutunga, ka inehia te matotoru.
I whakaritea ngā uara matotoru ki te matotoru tohutoro e rite ana, ā, i tatauhia te ōrau o te huringa matotoru o te whakapiri taketake i mua me muri i te tāpiri i ia tae me te rauemi matū.
Whakamātautau Pūmautanga Rokiroki
Penapenahia te whakapiri taketake ki te pāmahana rūma (25°C) i raro i te pēhanga noa mō ngā rā e ono, inehia te matotoru o te whakapiri taketake i ia rā i raro i ngā āhuatanga ōrite, ā, tatauhia te matotoru o te whakapiri taketake i muri i ngā rā e 6 ki te whakataurite ki te matotoru i inehia i te rā tuatahi mā te tātai 4-(1). Ka aromatawaihia te taumata marara o ia whakapiri taketake mā te tohu marara hei taupū.
Te pumau o te rokiroki, ko te iti o te mararatanga, ko te pai ake o te pumau o te rokiroki o te whakapiri taketake.
Whakamātautau tere paheke
Whakamarokehia te papanga miro hei tānga ki te taumaha pumau, paunatia, ka tuhia hei mA; kātahi ka whakamarokehia te papanga miro i muri i te tānga ki te taumaha pumau, paunatia, ka tuhia.
ko mB; hei whakamutunga, ka whakamaroketia te papanga miro kua tāia i muri i te koromamao, te hopi me te horoi kia pumau te taumaha, ka paunatia, ka tuhia hei mC
Whakamātautau ringaringa
Tuatahi, ka tātarihia ngā papanga miro i mua atu, ā, i muri i te tānga, e ai ki te hiahia, kātahi ka whakamahia te taputapu momo papanga phabrometer hei ine i te ngāwari o ngā papanga.
I arotakehia whānuitia te kare ā-ringa o te papanga i mua me muri i te tānga mā te whakatairite i ngā āhuatanga kare ā-ringa e toru, arā, te maeneene, te pakari me te ngawari.
Te whakamātautau pumau tae o ngā papanga tānga
(1) Whakamātautau pumau tae ki te mirimiri
Whakamātautauhia kia rite ki te GB/T 3920-2008 "Te pumau o te tae ki te mirimiri hei whakamātautau pumau o te tae o ngā kakahu".
(2) Whakamātautau pumau tae ki te horoinga
Whakamātautau kia rite ki te GB/T 3921.3-2008 "Te whakamātautau pumau tae ki te hopi o ngā kakahu".
Te ihirangi totoka taketake o te whakapiri/%
CMC
HEC
HEMCC
SA
Te kōpiko rerekētanga o te matotoru o ngā momo whakapiri taketake e whā me te ihirangi totoka
ko te konutai alginate (SA), te carboxymethyl cellulose (CMC), te hydroxyethyl cellulose (HEC) me
Ngā ānau matotoru o ngā momo whakapiri taketake e whā o te hydroxyethyl carboxymethyl cellulose (HECMC) e ai ki te pānga o te ihirangi totoka.
, i piki ake te matotoru o ngā whakapiri taketake e whā i te pikinga ake o te ihirangi totoka, engari kāore i rite ngā āhuatanga hanga whakapiri o ngā whakapiri taketake e whā, i roto i ēnei ko SA
Ko te āhuatanga whakapiri o te CMC me te HECMC te mea pai rawa atu, ā, ko te āhuatanga whakapiri o te HEC te mea kino rawa atu.
I inehia ngā ānau mahi rheological o ngā whakapiri taketake e whā mā te whakamahi i te rheometer hurihuri MCR301.
- Te kōpiko matotoru hei pānga o te tere kutikuti. I piki ake ngā matotoru o ngā whakapiri taketake e whā i te tere kutikuti.
te piki me te heke, ko te SA, te CMC, te HEC me te HECMC he wai rūpahu katoa. Ripanga 4.3 Ngā uara PVI o ngā momo whakapiri mata
Momo whakapiri mata SA CMC HEC HECMC
Uara PVI 0.813 0.526 0.621 0.726
Ka kitea i te Ripanga 4.3 he nui ake te taupū matotoru tā o SA me HECMC, ā, he iti ake te matotoru hanganga, arā, ko te whakapiri taketake tā.
I raro i te mahi a te kaha kutikuti iti, he iti te tere huringa matotoru, ā, he uaua ki te whakatutuki i ngā whakaritenga o te mata hurihuri me te mata papatahi; i te mea ko HEC me CMC
Ko te taupū matotoru tā o te CMC he 0.526 anake, ā, he nui te matotoru hanganga, arā, he iti ake te kaha kutikuti o te whakapiri tā taketake.
I raro i te mahi, he taurite te tere whakarerekētanga matotoru, ka pai ake te whakatutuki i ngā whakaritenga o te tā mata hurihuri me te tā mata papatahi, ā, he pai hoki mō te tā mata hurihuri me te maha o ngā mata.
He māmā te whiwhi i ngā tauira me ngā rārangi mārama. Te matotoru/mPa·s
Ngā kōpiko rheological o ngā whakapiri mata e whā he totoka 1%
Momo whakapiri mata SA CMC HEC HECMC
hāora/henimita 0.33 0.36 0.41 0.39
Ko ngā hua whakamātautau pupuri wai o te whakapiri taketake 1%SA, 1%CMC, 1%HEC me te 1%HECMC.
I kitea ko te kaha pupuri wai o SA te mea pai rawa atu, ā, whai muri ko te CMC, ā, ko te HECMC me te HEC te mea kino rawa atu.
Whakataurite Hototahi Matū
Te rerekētanga o te matotoru o te whakapiri taketake o SA, CMC, HEC me HECMC
Momo whakapiri mata SA CMC HEC HECMC
Te matotoru/mPa·s
Te matotoru i muri i te tāpiri i te urea/mPa
Te matotoru i muri i te tāpiri i te tote ārai-whakataetae S/mPa s
Te matotoru i muri i te tāpiri i te konutai paikāpōnate/mPa s
Ka rerekē ngā matotoru whakapiri matua e whā o SA, CMC, HEC me HECMC i runga i ngā tāpiri matua e toru: urea, tote ārai-waikura S me
Kei te ripanga ngā panoni o te tāpiritanga o te konutai paikāpōnate. , te tāpiritanga o ngā tāpiringa matua e toru, ki te whakapiri taketake
He rerekē rawa te tere o te panoni o te matotoru. I roto i ēnei, mā te tāpiri i te urea ka taea te whakanui ake i te matotoru o te whakapiri taketake mā te 5% pea, ka taea pea tēnei
Nā te āhua waikura me te pupuhi o te urea i hua mai ai; ā, ka paku whakanuia anō hoki e te tote ārai-waikura S te matotoru o te whakapiri taketake, engari he iti noa iho tōna pānga;
Nā te tāpiri o te konutai paikāpōnate i tino whakaiti te matotoru o te whakapiri taketake, ā, i tino heke te CMC me te HEC, ā, i tino heke te matotoru o te HECMC/mPa·s.
66
Tuarua, he pai ake te hototahitanga o te SA.
SA CMC HEC HECMC
-15
-10
-5
05
Urea
Tote ārai-waikura S
konutai paikāpōnati
Te hototahitanga o ngā whakapiri rakau SA, CMC, HEC me HECMC me ngā matū e toru
Te whakataurite i te pumau o te rokiroki
Te horapa o te matotoru o ia rā o ngā momo whakapiri mata
Momo whakapiri mata SA CMC HEC HECMC
Marara/% 8.68 8.15 8. 98 8.83
ko te tohu marara o SA, CMC, HEC me HECMC i raro i te matotoru o ia rā o ngā whakapiri taketake e whā, ko te marara
Ko te iti o te uara o te tohu, ko te pai ake o te pumau o te rokiroki o te whakapiri taketake e rite ana. Ka kitea i roto i te ripanga he tino pai te pumau o te rokiroki o te whakapiri mata CMC.
He ngoikore te pumau o te rokiroki o te HEC me te HECMC mata whakapiri, engari kāore i te hira te rerekētanga.
Wā tuku: Hepetema-29-2022