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01. ʻO ka ʻokoʻa ma waena o ka hydroxypropyl methyl hoʻopunipuni a me ka hydroxypropyl methyl kiʻekiʻe. Ke ʻano: ʻIke ʻia ka palaoa maʻemaʻe HPCM he homogeneous loa, ma waena o 0.3 a me 0.4 g/ml. Hoʻopaʻa ʻo Amylum i ka palaoa no laila he wai ka HPCM a emi ke kaumaha ma mua o nā detoxifiers maʻamau. Nā kūlana: piha ka palaoa i ka palaoa, hpm ...E heluhelu hou aku»
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ʻAʻole nui ka poʻe hoʻohana e hoʻolohe pinepine i ka pilikia o ka mahana gel o ka hydroxypropyl methylcellulose. I kēia mau lā, ua hoʻokaʻawale ʻia ka hydroxypropyl methylcellulose e like me ka viscosity, akā no kekahi mau wahi kūikawā a me nā ʻoihana kūikawā, ʻo ka viscosity wale nō o ka huahana ke hōʻike ʻia...E heluhelu hou aku»
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Nui nā kumu e pili ana i ka hoʻopili ʻana o ka hydroxypropyl methylcellulose HPMC i nā mea kūkulu hale, ʻoi aku ka plaster gypsum, penei: 1 ka paʻa ʻana o ka wai ʻO Hydroxypropyl methylcellulose no ke kūkulu ʻana e pale aku i ka omo nui ʻana o ka wai e ka substrate, a i ka wā e hana ai ka gyp ...E heluhelu hou aku»
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He palena ko ka hoʻohuihui hoʻokahi i ka hoʻomaikaʻi ʻana i ka hana o ka slurry gypsum. Inā makemake ka hana o ka mortar gypsum e hoʻokō i nā hopena kūpono a hoʻokō i nā koi noi like ʻole, pono e hoʻohuihui ʻia nā mea hoʻohuihui kemika, nā mea hoʻohuihui, nā mea hoʻopiha, a me nā mea like ʻole a c...E heluhelu hou aku»
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ʻO Hydroxypropyl methylcellulose - ka mortar masonry E hoʻonui i ka hoʻopili ʻana me ka ʻili masonry, a hoʻonui i ka paʻa ʻana o ka wai, i hiki ke hoʻomaikaʻi ʻia ka ikaika o ka mortar. Hoʻomaikaʻi ʻia ka lubricity a me ka plasticity no nā waiwai noi i hoʻomaikaʻi ʻia, ʻoi aku ka maʻalahi o ka noi e mālama i ka manawa a hoʻomaikaʻi...E heluhelu hou aku»
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Hana ʻia ka cellulose hydroxypropyl methyl ether mai ka cellulose pulupulu maʻemaʻe loa ma o ka etherification kūikawā ma lalo o nā kūlana alkaline. hopena: 1. ʻOihana kūkulu hale: Ma ke ʻano he mea mālama wai a me ka mea hoʻopaneʻe i ka mortar sima, hiki iā ia ke hoʻolilo i ka mortar i mea hiki ke pamu ʻia. I loko o ka plaster, gypsum, putty powder a i ʻole...E heluhelu hou aku»
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1. Mahana o ka gel (0.2% solution) 50-90°C. 2. Hoʻoheheʻe ʻia i ka wai a me ka hapa nui o ka polar c a me ka hapa kūpono o ka ethanol/wai, propanol/wai, dichloroethane, a pēlā aku, ʻaʻole hoʻoheheʻe ʻia i ka ether, acetone, ethanol piha, a pehu i loko o ka moakāka a i ʻole ka turbid iki i loko o ka wai anuanu colloidal solution. ʻO ka wai ...E heluhelu hou aku»
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ʻO MC ka methyl cellulose, i hana ʻia me ka cellulose ether ma ka mālama ʻana i ka pulupulu i hoʻomaʻemaʻe ʻia me ka alkali, me ka hoʻohana ʻana i ka methane chloride ma ke ʻano he etherification agent, a ke hele nei i loko o kahi moʻo o nā hopena. Ma keʻano laulā, ʻo ke kekelē o ka pani ʻana he 1.6 ~ 2.0, a ʻokoʻa hoʻi ka solubility me nā kekelē like ʻole o...E heluhelu hou aku»
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ʻO ka hydroxypropyl methylcellulose papa kemika o kēlā me kēia lā he polymer synthetic i hana ʻia mai nā linters pulupulu cellulose kūlohelohe ma o ka hoʻololi ʻana o ka etherification. ʻO ka Cellulose ether kahi derivative o ka cellulose kūlohelohe. He ʻokoʻa ka hana ʻana o ka cellulose ether mai nā polymers synthetic. ʻO kāna ma kumu nui ...E heluhelu hou aku»
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ʻO ka hoʻohui ʻana i ka hydroxypropyl methylcellulose e hana i ka pauka putty, ʻaʻole maʻalahi ka nui o kona viscosity, ʻo ka nui loa e hana ai i ka hana maikaʻi ʻole, no laila pehea ka nui o ka viscosity e pono ai ka hydroxypropyl methylcellulose no ka pauka putty? E kālailai kākou no nā mea āpau. ʻOi aku ka maikaʻi o ka hoʻohui ʻana i ka hydroxypropyl methylc...E heluhelu hou aku»
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I loko o ka sima sima a me ka slurry gypsum-based, ʻo ka hydroxypropyl methylcellulose ke kuleana nui o ka paʻa ʻana o ka wai a me ka mānoanoa, a hiki ke hoʻomaikaʻi maikaʻi i ka hoʻopili ʻana a me ke kūpaʻa sag o ka slurry. ʻO nā mea e like me ka mahana o ka ea, ka mahana a me ka wikiwiki o ke kaomi makani e hoʻopilikia i ka volatili...E heluhelu hou aku»
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1. Nā pilikia maʻamau i ka pauka putty Ka maloʻo wikiwiki: ʻO kēia ke kumu nui o ka nui o ka pauka calcium lime i hoʻohui ʻia (nui loa, hiki ke hoʻemi kūpono ʻia ka nui o ka pauka calcium lime i hoʻohana ʻia i loko o ke ʻano putty) e pili ana i ka helu paʻa wai o ka fiber, a pili pū kekahi i ka dr...E heluhelu hou aku»