1. He aha te whakamahinga matua ohydroxypropyl methylcellulose (HPMC)?
E whakamahia whānuitia ana te HPMC i roto i ngā rauemi hanga, ngā paninga, ngā kapia hangai, ngā uku, ngā rongoā, ngā kai, ngā kakahu, ngā ahuwhenua, ngā mea whakapaipai, ngā tupeka me ētahi atu ahumahi. Ka taea te wehewehe i te HPMC ki ngā momo hanga, ngā momo kai me ngā momo rongoā i runga i te kaupapa. I tēnei wā, ko te nuinga o ngā hua o te whare he momo hanga. I roto i te momo hanga, he nui te whakamahinga o te paura putty, tata ki te 90% e whakamahia ana mō te paura putty, ā, ko te toenga e whakamahia ana mō te moata sima.
2. He aha te kakara o te hydroxypropyl methylcellulose (HPMC)?
Ko te HPMC i hangaia mā te tikanga whakarewa e whakamahi ana i te toluene me te isopropanol hei whakarewa. Mēnā kāore i te tino pai te horoinga, ka toe mai he haunga.
3. He aha ngā tikanga whakarewa o te hydroxypropyl methylcellulose (HPMC)?
Tikanga whakarewa wai wera: Nā te mea kāore te HPMC e whakarewa i te wai wera, ka taea te horapa ōrite te HPMC ki te wai wera i te tīmatanga, kātahi ka whakarewa wawe ina whakamatao. E rua ngā tikanga noa e whakaahuatia ana penei:
1) Ringihia te nui o te wai wera e hiahiatia ana ki roto i te ipu, ka whakamahana kia 70°C pea. I tāpirihia mārire te hydroxypropyl methylcellulose me te whakaoho mārire, i te tīmatanga ka mānu te HPMC ki runga i te mata o te wai, kātahi ka hanga mārire hei paraoa pokepoke, ka whakamataohia i te wā e whakaoho ana.
2), tāpirihia te 1/3, te 2/3 rānei o te nui o te wai e hiahiatia ana ki roto i te ipu, ka whakamahana ki te 70°C, ka whakamararatia te HPMC kia rite ki te tikanga o te 1), ka whakarite i te parai wai wera; kātahi ka tāpirihia te toenga o te wai matao ki te parai wai wera, ka whakamataohia te ranunga i muri i te whakaoho.
Tikanga whakaranu paura: whakaranua te paura HPMC me te nui o ētahi atu matū paura, whakaranua kia pai ki te mīhini whakaranu, kātahi ka tāpirihia he wai kia memeha, kātahi ka taea te memeha te HPMC i tēnei wā me te kore e whakaemi, nā te mea he iti noa te HPMC i roto i ia kokonga iti. Ka memeha tonu te paura ina pā ki te wai. ——Kei te whakamahi ngā kaihanga paura me te moata i tēnei tikanga. [Ka whakamahia te Hydroxypropyl methylcellulose (HPMC) hei whakamātotoru me te pupuri wai i roto i te moata paura moata. ]
4. Me pēhea te aromatawai i te kounga o te hydroxypropyl methylcellulose (HPMC) i roto i te huarahi māmā me te mārama?
(1) Te Mā: Ahakoa kāore e taea e te mā te whakatau mena he ngāwari te whakamahi i te HPMC, ā, ki te tāpirihia he kaimā i te wā o te tukanga whakaputa, ka pā ki tōna kounga. Heoi, he pai te mā o te nuinga o ngā hua pai.
(2) Te Maeneene: Ko te maeneene o te HPMC he 80 mata me te 100 mata te tikanga, ā, he iti iho te 120 mata. Ko te nuinga o ngā HPMC e hangaia ana i Hebei he 80 mata. Ko te maeneene o te maeneene, i te nuinga o te wā, ko te pai ake.
(3) Te tuku mārama: waihohydroxypropyl methylcellulose (HPMC)ki roto i te wai hei hanga i tētahi kōroiti mārama, ā, tirohia tōna whakawhiti mārama. Ko te nui ake o te whakawhiti mārama, ko te pai ake, e tohu ana he iti ake ngā mea kore e rewa i roto. He pai te urunga o ngā tauhohenga poutū, ā, he kino ake te urunga o ngā tauhohenga whakapae, engari ehara i te mea he pai ake te kounga o ngā tauhohenga poutū i te kounga o ngā tauhohenga whakapae, ā, he maha ngā āhuatanga e whakatau ana i te kounga o te hua.
(4) Taumaha motuhake: Ko te nui ake o te taumaha motuhake, ko te taumaha ake, ko te pai ake. He nui te motuhaketanga, i te nuinga o te wā nā te mea he nui te ihirangi o te rōpū hydroxypropyl i roto, ā, he nui te ihirangi o te rōpū hydroxypropyl, he pai ake te pupuri wai.
5. He aha te rerekētanga i waenga i te momo wai matao inamata me te momo hydroxypropyl methylcellulose wairewa-wera i roto i te tukanga whakaputa?
Ko te momo HPMC tere-marara ka rongoatia ki te mata ki te glyoxal, ā, ka tere te marara i roto i te wai matao, engari kāore e tino memeha. Ka memeha noa ina piki ake te matotoru. Kāore he maimoatanga mata o te momo inamata ki te glyoxal. Mena he nui te nui o te glyoxal, ka tere te marara, engari ka puhoi te piki o te matotoru, ā, ki te iti te nui, ka rerekē te āhua.
6. He aha te matotoru tika o te hydroxypropyl methylcellulose (HPMC)?
Ko te utu mō te paura putty he 100,000 yuan te nuinga, ā, he nui ake ngā whakaritenga mō te moata, ā, e 150,000 yuan te utu e hiahiatia ana mō te whakamahinga ngāwari. Heoi anō, ko te mahi nui rawa atu o te HPMC ko te pupuri i te wai, ā, muri iho ko te whakamātotoru. I roto i te paura putty, mena he pai te pupuri i te wai, ā, he iti te matotoru (70,000-80,000), ka taea hoki. Ko te tikanga, ko te teitei ake o te matotoru, ko te pai ake o te pupuri wai whanaunga. Ina neke atu te matotoru i te 100,000, ka pā te matotoru ki te pupuri wai. Kāore e nui rawa atu.
7. He aha ngā tohu hangarau matua o te hydroxypropyl methylcellulose (HPMC)?
Ko te nui o te hauwaiporoporo me te matotoru, he maha ngā tāngata e āwangawanga ana mō ēnei tohu e rua. Ko te hunga he nui te hauwaiporoporo he pai ake te pupuri wai. Ko te mea he nui te matotoru he pai ake te pupuri wai, he āhua noa (ehara i te tino), ā, ko te mea he nui te matotoru he pai ake te whakamahi i roto i te moata sima.
8. He aha ngā rauemi matua o te hydroxypropyl methylcellulose (HPMC)?
Ko ngā rauemi mata matua o te hydroxypropyl methylcellulose (HPMC): te miro parakore, te methyl chloride, te propylene oxide, me ētahi atu rauemi mata, te konutai waikura, te waikawa, te toluene, te isopropanol, me ētahi atu.
9. He aha te mahi matua o te tono oHPMCi roto i te paura putty, ā, ka puta mai i te taha matū?
I roto i te paura putty, e toru ngā mahi a te HPMC, arā, te whakamātotoru, te pupuri wai, me te hanganga.
Te Whakamātotoru: Ka taea te whakamātotoru i te cellulose hei whakairi me te pupuri i te wai kia ōrite ki runga, ki raro, ā, kia kore ai e totohu.
Te pupuri wai: kia āta maroke te paura putty, ā, āwhina i te konupūmā pungarehu kia tauhohe i raro i te mahi a te wai.
Hanganga: He pānga whakahinuhinu tō te cellulose, ā, ka pai te hanganga o te paura putty.
He tauhohenga matū te tāpiri wai ki te paura putty, me te pani ki te pakitara, nā te mea ka puta he matū hou. Ki te tangohia e koe te paura putty i runga i te pakitara mai i te pakitara, ka hurihia kia paura, ka whakamahia anō, kāore e mahi nā te mea kua puta he matū hou (konupūmā kāponāte).
Ko ngā wāhanga matua o te paura konupūmā pungarehu ko: he ranunga o te Ca(OH)2, CaO me te iti o te CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Kei roto i te wai me te hau te konupūmā pungarehu. I raro i te mahi a te CO2, ka puta te konupūmā kāponāte, ko te HPMC ia ka pupuri i te wai anake, ka āwhina i te tauhohenga pai ake o te konupūmā pungarehu, ā, kāore e whai wāhi ki tētahi tauhohenga.
10. He etera cellulose kore-ionic te HPMC, nō reira he aha te kore-ionic?
Ki te kīanga māmā noa, ko ngā mea kore-iona he matū kāore e iona i roto i te wai. Ko te iona e pā ana ki te tukanga e wehea ai te electrolyte ki ngā iona kua utua ka taea te neke noa i roto i tētahi whakarewa motuhake (pēnei i te wai, te waipiro). Hei tauira, ko te konutai pūhaumāota (NaCl), te tote e kainga ana e tātou i ia rā, ka rewa ki te wai ka iona hei whakaputa i ngā iona konutai (Na+) neke noa he utu pai me ngā iona pūhaumāota (Cl) he utu kino. Arā, ina whakanohoia te HPMC ki roto i te wai, e kore e wehea hei iona kua utua, engari kei roto i te āhua o ngā ngota.
11. He aha te pānga o te pāmahana tiēre o te hydroxypropyl methylcellulose?
E pā ana te pāmahana tiēre o te HPMC ki te nui o te methoxy, ka iti ake te nui o te methoxy, ka teitei ake te pāmahana tiēre.
12. He hononga kei waenganui i te maturuturunga iho o te paura putty me te HPMC?
Ko te ngaronga o te paura putty e pā ana ki te kounga o te konupūmā pungarehu, ā, kāore he pānga ki te HPMC. Ko te iti o te konupūmā o te konupūmā hina me te ōwehenga hē o te CaO me te Ca(OH)2 i roto i te konupūmā hina ka puta te ngaronga o te paura. Mena he pānga ki te HPMC, ki te kore e pai te pupuri wai o te HPMC, ka puta hoki te ngaronga o te paura.
13. He aha te rerekētanga i waenga i te momo wai matao inamata me te momo hydroxypropyl methylcellulose wairewa-wera i roto i te tukanga whakaputa?
Ko te momo horapa tere oHPMCka rongoatia ki te mata ki te glyoxal, ā, ka tere te marara i roto i te wai matao, engari kāore e tino memeha. Ka memeha noa ina piki ake te matotoru. Kāore he maimoatanga mata o te momo inamata ki te glyoxal. Mena he nui te nui o te glyoxal, ka tere te marara, engari ka puhoi te piki o te matotoru, ā, ki te iti te nui, ka rite te ritenga ke.
Wā tuku: Paenga-whāwhā-25-2024