Ko te Hydroxypropyl methylcellulose (HPMC) he ether cellulose kore-ionic i hangaia mai i te rauemi polymer tūturu cellulose mā roto i te raupapa o ngā tukanga matū. He paura ma, kāore he kakara, kāore he reka, kāore hoki he paitini, ka pupuhi hei wairewa colloidal mārama, paku kapua rānei i roto i te wai matao. He āhuatanga whakamātotoru, here, horapa, whakaemulsifying, hanga kiriata, whakatārewatanga, mimiti, whakapūmau, hohe mata, pupuri makuku me te tiaki colloid. Ka taea te whakamahi i te Hydroxypropyl methylcellulose me te methylcellulose ki ngā rauemi hanga, te ahumahi peita, te kapia hangai, te ahumahi uku, te rongoā, te kai, te kakahu, te ahuwhenua, te matū o ia rā me ētahi atu ahumahi.
Tātai matū:
Hydroxypropylmethylcellulose (HPMC)[C6H7O2(OH)3-mn(OCH3)m(OCH2CH(OH)CH3)n]x
Ko te whakamahinga matua o te hydroxypropyl methylcellulose HPMC i roto i ngā rauemi hanga:
1. te paraikete i hangaia ki te sima
⑴ Whakapai ake i te ōritetanga, kia māmā ake te parai i te parai, kia ātete ki te totohu, kia pai ake te rere me te kaha ki te papu, me te whakapai ake i te pai o te mahi.
⑵ He nui te pupuri wai, ka roa ake te wā rokiroki o te moata, ka whakapai ake i te pai o te mahi, ā, ka āwhina i te whakamakuku me te whakapakeketanga o te moata kia puta ai he kaha miihini teitei.
⑶ Whakahaerehia te urunga mai o te hau hei whakakore i ngā kapiti i te mata paninga, hei hanga hoki i tētahi mata maeneene tino pai.
2. Ngā hua paraikete me te paraikete i hangaia ki te gypsum
⑴ Whakapai ake i te ōritetanga, kia māmā ake te parai i te parai, kia ātete ki te totohu, kia pai ake te rere me te kaha ki te papu, me te whakapai ake i te pai o te mahi.
⑵ He nui te pupuri wai, ka roa ake te wā rokiroki o te moata, ka whakapai ake i te pai o te mahi, ā, ka āwhina i te whakamakuku me te whakapakeketanga o te moata kia puta ai he kaha miihini teitei.
⑶ Whakahaerehia te matotoru o te moata kia puta he paninga mata tino pai.
3. Moata Whakairoiro
⑴ Whakapai ake i te piri ki te mata o te pereki, kia mau tonu te wai, kia kaha ake hoki te moata.
⑵ Whakapai ake i te hinu whakahinuhinu me te kirihou, me te whakapai ake i te hanganga; he māmā ake te hanga i te moata i whakapaitia e te cellulose ether, ka penapena i te wā hanga me te whakaiti i ngā utu hanga.
⑶ He matū cellulose ether tino-teitei e pupuri ana i te wai, he pai mō ngā pereki mimiti-wai.
4. Whakakī hononga panera
⑴He tino pai te pupuri wai, ka roa ake te wā whakatuwheratanga, ā, ka pai ake te mahi. He nui te hinu whakahinuhinu, he māmā ake te whakaranu. ⑵ Ka whakapai ake i te ātete ki te mimiti me te pakaru, ka whakapai ake i te kounga o te mata paninga. ⑶ Ka whakapai ake i te piri o te mata piri, ā, ka puta he kakano maeneene, maeneene hoki.
5. Piripiri Tāera ⑴He ngāwari ki te whakamaroke i ngā kai whakaranu, kāore he puranga, ka tere ake te tono, ka pai ake te mahi hanga, ka penapena wā mahi me te whakaiti i te utu mahi. ⑵ Mā te whakaroa i te wā whakatuwheratanga, ka taea te whakapai ake i te whai huatanga o te tāera, ā, ka taea te whakarato i te pānga piri pai rawa atu.
6. Ngā rauemi papa whakaōrite-ake ⑴ ka whakarato i te matotoru, ā, ka taea te whakamahi hei tāpiri ārai-pūtake. ⑵Ka whakarei ake i te kaha papu o te rere me te whakapai ake i te whai huatanga o te whakatakoto i te whenua. ⑶ Whakahaere i te pupuri wai me te mimiti, whakaiti i ngā kapiti me te mimiti o te whenua.
7. Peita wai ⑴Ārai i te maturuturunga totoka, ā, ka roa ake te ora o te hua i roto i te ipu. He pumau koiora teitei, he hototahi pai ki ētahi atu wāhanga. ⑵ Whakapai ake i te rere o te wai, he pai ngā āhuatanga ārai-piripiri, ārai-totoka me te whakataurite, ā, kia tino pai te āhua o te mata.
8. Paura pepapātū ⑴ Ka tere te memeha, kāore he puranga, he pai mō te whakaranu. ⑵ ka whakarato i te kaha piri teitei.
9. He tino piripono, he tino hinuhinu hoki te papa sima kua whakapūtāhia (1), ā, ka whakarei ake i te ngāwari o te miihini o ngā hua kua whakapūtāhia. ⑵ Ka whakapai ake i te kaha matomato, ka whakatairanga i te pānga makuku me te whakamaroke, ā, ka whakapiki ake i te hua.
10. Ngā hua HPMC e hāngai ana ki te moata kua oti te whakaranu He pai ake te pupuri wai o ngā hua HPMC e hāngai ana ki te moata kua oti te whakaranu i roto i te moata kua oti te whakaranu i ngā hua noa, e whakarite ana i te makuku o ngā rauemi sima kore-waro, e ārai ana i te whakahekenga o te kaha here i puta mai i te maroke nui, me ngā pakaru i puta mai i te whakahekenga maroke. He pānga hopu hau anō hoki tō te HPMC. Ko te hua HPMC e whakamahia ana mō te moata kua oti te whakaranu he nui ngā mirumiru hau e tika ana, he ōrite, he iti hoki, ka taea te whakapai ake i te kaha me te whakangawari o te moata kua oti te whakaranu. He pānga whakaroa tō te hua HPMC e whakamahia ana mō te moata kua oti te whakaranu, ka taea te whakaroa i te wā whakatuwheratanga o te moata kua oti te whakaranu me te whakaiti i te uaua o te hanga.
Wā tuku: Mei-24-2023