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Te moata hydroxypropyl methylcellulose – te moata pereki Ka whakarei ake i te piri ki te mata pereki, ka whakanui ake hoki i te pupuri wai, kia kaha ake ai te moata. Ka whakapai ake i te hinu me te kirihou hei whakapai ake i ngā āhuatanga tono, ka māmā ake te tono ka penapena wā, ka whakapai ake hoki...Pānuihia atu»
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He mea hanga te cellulose hydroxypropyl methyl ether mai i te cellulose miro tino parakore mā te whakaetere motuhake i raro i ngā āhuatanga kawakore. Ngā pānga: 1. Ahumahi hanga: Hei kaihoko pupuri wai me te whakaroa i te moata sima, ka taea te papu i te moata. I roto i te parai, te gypsum, te paura putty, te...Pānuihia atu»
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1. Te pāmahana o te kirikiri (0.2% otinga) 50-90°C. 2. Ka wairewa ki te wai me te nuinga o te c polar me te ōwehenga tika o te etanoru/wai, te propanol/wai, te dichloroethane, me ētahi atu, kāore e wairewa ki te ether, te acetone, te etanoru tino, ā, ka pupuhi ki te mārama, ki te paku pōuri rānei i roto i te wai matao colloidal solution. Ko te wai ...Pānuihia atu»
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Ko te MC he methyl cellulose, he mea hanga mai i te cellulose ether mā te rongoā i te miro kua whakapaia ki te alkali, te whakamahi i te methane chloride hei kaihoko etherification, me te haere i roto i te raupapa o ngā tauhohenga. Ko te tikanga, ko te nekehanga o te whakakapinga he 1.6~2.0, ā, he rerekē anō hoki te wairewatanga me ngā nekehanga rerekē o...Pānuihia atu»
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Ko te hydroxypropyl methylcellulose karaehe matū o ia rā he pūmua hangai i hangaia mai i ngā miro cellulose tūturu mā te whakarerekētanga etherification. Ko te cellulose ether he mea hanga mai i te cellulose tūturu. He rerekē te hanga o te cellulose ether i ngā pūmua hangai. Ko tōna tikanga taketake...Pānuihia atu»
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Mā te tāpiri i te hydroxypropyl methylcellulose ki te hanga paura putty, ehara i te mea ngāwari ki te rahi rawa te matotoru, ka ngoikore te mahi ina nui rawa, nō reira, e hia te matotoru e hiahiatia ana mō te paura putty hydroxypropyl methylcellulose? Me tātari tātou mō te katoa. He pai ake te tāpiri i te hydroxypropyl methylc...Pānuihia atu»
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I roto i te moata sima me te paru gypsum, ko te hydroxypropyl methylcellulose te nuinga o te mahi hei pupuri wai me te whakamātotoru, ā, ka taea te whakapai ake i te piri me te ātete totoro o te paru. Ko ngā āhuatanga pēnei i te pāmahana hau, te pāmahana me te tere o te pēhanga hau ka pā ki te mimiti...Pānuihia atu»
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1. Ngā raruraru noa i roto i te paura putty Te maroke tere: Ko te take nui o tēnei ko te nui o te paura konupūmā raima i tāpirihia (he nui rawa, ka taea te whakaiti tika i te nui o te paura konupūmā raima i whakamahia i roto i te tauira putty) e pā ana ki te tere pupuri wai o te muka, ā, e pā ana hoki ki te maroke...Pānuihia atu»
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maroke tere Ko te take nui o tēnei ko te nui rawa o te paura konupūmā pungarehu (ka taea te whakaiti i te nui o te paura konupūmā pungarehu e whakamahia ana i roto i te tauira putty) e pā ana ki te tere pupuri wai o te hydroxypropyl methylcellulose, ā, e pā ana hoki ki te maroke o te pakitara. Te tihore i te...Pānuihia atu»
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Ko te Hydroxypropyl methylcellulose he ether cellulose kore-ionic i tukatukahia mai i te miro kua whakapaia mā roto i te raupapa o ngā tauhohenga matū. He matū paura ma, kāore he kakara, kāore he paitini, ka rewa ki te wai, ā, ka puta he wairewa koloidal mārama, paku kapua rānei. He āhuatanga ōna o te...Pānuihia atu»
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Ko te ingoa Hainamana o te HPMC ko te hydroxypropyl methylcellulose. He kore-ionic, ā, he maha ngā wā ka whakamahia hei pupuri wai i roto i te moata maroke-ranu. Koinei te rauemi pupuri wai e whakamahia whānuitia ana i roto i te moata. He hua ether e ahu mai ana i te polysaccharide i hangaia mā te alkaliization me te etherification. Kāore he...Pānuihia atu»
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1. Ngā raruraru noa i roto i te paura putty maroke tere Ko te nuinga o tēnei e pā ana ki te nui o te paura konupūmā pungarehu i tāpirihia (he nui rawa, ka taea te whakaiti i te nui o te paura konupūmā pungarehu i whakamahia i roto i te tauira putty) me te tere pupuri wai o te hydroxypropyl methylcellulose (HPMC), ā, he mea anō hoki...Pānuihia atu»