1. He aha te kaupapa matua o te HPMC?
E whakamahia ana tēnei hua hei whakamātotoru, hei whakamarara, hei here, hei tāpiri, hei paninga ātete-hinu, hei whakakī, hei whakaemulsifier me hei whakaū i roto i te umanga kakahu. E whakamahia whānuitia ana hoki i roto i te kapia hangai, te hinu matū, te uku, te pepa, te hiako, te rongoā, te kai me ngā ahumahi whakapaipai.
2. He aha te tūranga oHPMCi roto i te paura putty pakitara o roto?
E toru ngā mahi a te HPMC: te paura putty mō te pakitara o roto, te whakamātotoru, te raka wai me te hanga. Te kukū: Ka taea te kukū i te methyl cellulose mā te wai mānu, mā te wai rānei hei pupuri i ngā mahi ōrite me te ōrite, me te ārai i te rere me te iri. Te raka wai: Ka maroke mārire te paura pakitara o roto, ā, ka whakaatahia te konupūmā raima tāpiri ki te whakamahinga o te wai. Te hanga hangarau: He mahi mākū te methyl cellulose, ka taea ai te hanga i te paura putty pakitara o roto kia pai te hanganga hangarau. Kāore te HPMC e whai wāhi ki te huringa o ngā matū katoa, engari ka whai wāhi noa ki te whakakī. Ko te paura putty pakitara o roto, i runga i te pakitara, he huringa matū, nā te mea he huringa matū hou, ka tangohia te paura putty pakitara o roto mai i te pakitara, ka mira, ka whakamahia anō, nā te mea kua puta he matū hou (konupūmā paikāponate). Ko ngā wāhanga matua o te paura konupūmā hina ko: he ranunga o Ca(OH)2, CaO me te iti o CaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O konupūmā hina i roto i te wai me te hau. I raro i te mahi a te CO2, ka hangaia te konupūmā kāponāte, ko te HPMC ia ka pupuri i te wai anake, ā, ka āwhina i te tauhohenga pai ake o te konupūmā hina, ā, kāore e whai wāhi ki tētahi tauhohenga.
3. Me pēhea te aromatawai i te kounga oHPMChe māmā noa iho, he mārama hoki ki te hinengaro?
(1) Te Mā: Ahakoa kāore e taea e te mā te whakatau mēnā he ngāwari te whakamahi i te HPMC, ā, mēnā ka tāpirihia he mea whakamārama ki te tukanga whakaputa, ka pā ki tōna kounga. Heoi, he pai te mā o ngā hua pai. (2) Te Matatini: Ko te matatini o te HPMC he 80 mesh me te 100 mesh, he iti iho te 120 mesh, ā, ko te nuinga o ngā HPMC i hangaia i Hebei he 80 mesh. Ko te matatini he pai ake te pai. (3) Te Tuku: Tāpirihia te hydroxypropyl methylcellulose (HPMC) ki roto i te wai hei hanga i tētahi colloid mārama, ā, tirohia tōna tuku. Ko te nui ake o te tuku, ko te pai ake, e tohu ana he iti ake ngā mea kore e rewa i roto. . Ko te urunga o te tauhohenga poutū he pai te nuinga, ā, he kino ake te tauhohenga whakapae, engari ehara i te mea he pai ake te kounga o te tauhohenga poutū i te tauhohenga whakapae. He maha tonu ngā āhuatanga e whakatau ana i te kounga o te hua. (4) Te Taurite: Ko te nui ake o te taurite, ko te taumaha he pai ake. Ko te tino motuhaketanga i te nuinga o te wā nā te nui o te hydroxypropyl i roto, ā, ki te nui ake te ihirangi hydroxypropyl, ka pai ake te pupuri wai.
4. He aha ngā mea hei aro atu ina whakamahia ana te matotoru me te pāmahana o te HPMC?
He rerekē te matotoru o te HPMC ki te pāmahana, arā, ka piki ake te matotoru i te hekenga o te pāmahana. E kīia ana ko te matotoru o tētahi hua e pā ana ki te hua o te whakamātautau i tana wairewa 2% i te pāmahana o te 20 nekehanga Celsius. I roto i ngā mahi whaihua, i ngā wāhi he nui te rerekētanga pāmahana i waenga i te raumati me te hotoke, me mōhio he pai ake te whakamahi i te matotoru iti i te hotoke, he pai ake mō te hanga. Ki te kore, ina iti te pāmahana, ka piki ake te matotoru o te cellulose, ā, ka taumaha te ringa ina waruhia.
5. He aha ngā tikanga whakarewa o te HPMC?
Tikanga whakarewa wai wera: Nā te mea kāore te HPMC e whakarewahia ki te wai wera, ka taea te whakamarara ōrite i te HPMC ki te wai wera i te tīmatanga, kātahi ka tere te whakarewa ina whakamatao. E rua ngā tikanga noa e whakaahuahia ana penei: 1). Te nui o te wai wera ka whakamahanahia ki te 70°C pea. Tāpirihia mārire te hydroxypropyl methylcellulose me te whakaoho mārire, tīmatahia te HPMC kia mānu i runga i te mata o te wai, kātahi ka hanga mārire he paraoa pokepoke, ka whakamatao i te paraoa pokepoke me te whakaoho. 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. E ai ki te tikanga 1), whakamararatia te HPMC hei whakarite i te paraoa pokepoke wai wera; kātahi ka tāpirihia te toenga o te wai matao ki te wai wera. I roto i te paraoa pokepoke, whakamataohia te ranunga i muri i te whakaoho. Tikanga whakaranu paura: whakaranua te paura HPMC me te nui o ētahi atu rauemi 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 piri, e whakaemi rānei, nā te mea he iti noa te HPMC i roto i ia kokonga iti. Ka memeha tonu te paura ina tūtaki ki te wai. -Ka whakamahia tēnei tikanga e ngā kaihanga paura me ngā moata. [Ka whakamahia te Hydroxypropyl methyl cellulose (HPMC) hei whakamātotoru me te pupuri wai i roto i te moata paura moata. ]
6. He aha te horopeta o te HPMC ka tāpirihia ki te paura putty?
Te nui oHPMCKa rerekē te taumaha e whakamahia ana i roto i ngā tono tūturu i runga i te āhuarangi, te pāmahana, te kounga o te konupūmā pungarehu o te rohe, te tauira o te paura putty, me te "kounga e hiahiatia ana e ngā kiritaki". I te nuinga o te wā, kei waenganui i te 4 kg me te 5 kg. Hei tauira, ko te paura putty i roto i te whakapaipai '> Beijing he 5 kg te nuinga; ko te paura putty i Guizhou he 5 kg te nuinga i te raumati me te 4.5 kg i te takurua; he iti noa te nui o te tāpiri a Yunnan, ko te nuinga he 3 kg-4 kg me ētahi atu.
Wā tuku: Paenga-whāwhā-26-2024