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01. Te rerekētanga i waenga i te hydroxypropyl methyl rūpahu me te hydroxypropyl methyl kounga teitei Te āhua: Ko te māngaro parakore HPCM te āhua he rite rawa, i waenga i te 0.3 me te 0.4 g/ml. Ka herea te Amylum ki te māngaro, nō reira he wai te HPCM, ā, he iti ake te ahotea i ngā mea whakamātao noa. Ngā āhuatanga: kī tonu te māngaro i te māngaro, hpm ...Pānuihia atu»
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He maha ngā kaiwhakamahi kāore i te aro nui ki te raruraru o te pāmahana o te hydroxypropyl methylcellulose. I ēnei rā, ko te hydroxypropyl methylcellulose te tikanga whānuitia e wehewehea ana i runga i te matotoru, engari mō ētahi taiao motuhake me ngā ahumahi motuhake, ko te matotoru anake o te hua ka whakaatahia...Pānuihia atu»
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He maha ngā āhuatanga e pā ana ki te whakamahinga o te hydroxypropyl methylcellulose HPMC i roto i ngā rauemi hanga, inā koa te raima gypsum, penei: 1 te pupuri wai Ka ārai te Hydroxypropyl methylcellulose mō te hanga i te mimiti nui o te wai e te papa, ā, ina...Pānuihia atu»
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He iti noa ngā herenga o te ranunga kotahi ki te whakapai ake i te mahi a te paru gypsum. Ki te hiahia te mahi a te moata gypsum kia pai ai ngā hua, kia tutuki ai hoki ngā whakaritenga tono rerekē, me whakaranu, me whakakī hoki ngā matū tāpiri, ngā mea tāpiri, ngā mea whakakī, me ngā momo rauemi...Pānuihia atu»
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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»