Pehea e koho ai i ka cellulose pono

(1) Hoʻokaʻawale ʻia ka Hydroxypropyl methylcellulose (HPMC) i ke ʻano maʻamau (ʻano wela-soluble) a me ke ʻano wai anuanu.

ʻAno maʻamau, puʻupuʻu i ka wai anuanu, akā hiki ke hoʻopuehu koke i ka wai wela a nalowale i ka wai wela. Ke hāʻule ka mahana i kekahi mahana, e ʻike mālie ʻia ka viscosity a hiki i ka hana ʻana i kahi colloid viscous transparent. ʻO ke kumu o ka loaʻa ʻana o nā puʻupuʻu wai anuanu: ʻo ka pauda cellulose waho e hālāwai me ka wai anuanu, lilo koke ia i viscous, mānoanoa i loko o kahi colloid maopopo, a ua hoʻopuni ʻia ka cellulose i loko e ka colloid ma mua o ka hoʻopili ʻana me ka wai, a ʻo ia ka pauda. ʻano. , aka hehee malie. ʻAʻole pono nā huahana maʻamau e hoʻohana i ka wai wela i nā noi kūpono, no ka mea, ʻo ka pauka putty a i ʻole ka mortar he pauka paʻa. Ma hope o ka hui ʻana maloʻo, hoʻokaʻawale ʻia ka cellulose e nā mea ʻē aʻe. Ke hālāwai ʻo ia me ka wai, e lilo koke ia i ʻeleʻele a ʻaʻole e hui.

Hoʻopuehu koke ka huahana i ka wā e hālāwai ai me ka wai anuanu a nalowale i ka wai. I kēia manawa, ʻaʻohe viscosity o ka wai, no ka mea, hoʻopuehu wale ʻia ka HPMC i ka wai me ka ʻole o ka hoʻoheheʻe maoli ʻana. Mai kahi o 2 mau minuke, piʻi mālie ka viscosity o ka wai, e hana ana i kahi colloid viscous transparent.

(2) ʻO ke ʻano o ka hoʻohana ʻana i ke ʻano maʻamau a me ke ʻano koke: hoʻohana nui ʻia ke ʻano koke i ke kāpili wai, nā mea hoʻonaninani, a me ka mea holoi holoi. No ka mea ua mālama ʻia ka ʻili o ka cellulose koke me ka dialdehyde, ʻaʻole maikaʻi ka paʻa ʻana o ka wai e like me nā huahana maʻamau. No laila, i ka pauka maloʻo e like me ka pauka putty a me ka mortar, paipai mākou i nā huahana maʻamau.

Pehea e koho ai i ka viscosity kūpono o ka cellulose:

1. ʻO ka mea mua, pono mākou e hoʻomaopopo i ke kuleana o ka cellulose ether: ka paʻa ʻana o ka wai a me ka mānoanoa.
2. Hiki i ka ʻoihana ke ʻōlelo maʻamau he 100,000 viscosity, 150,000 viscosity, a me 200,000 viscosity. He aha ke ʻano o kēia mau ana? He aha ka hopena o nā ʻāpana like ʻole o ke ana i ka huahana?

(1) No ka mālama ʻana i ka wai
Hoʻonui ka hana paʻa wai me ka piʻi ʻana o ka viscosity, akā e like me nā kūlana mākeke, ke ʻoi aku ka viscosity o cellulose ma mua o 100,000, piʻi ka hana paʻa wai me ka viscosity.

(2) No ka mānoanoa
ʻO ka ʻōlelo maʻamau, inā maʻamau ka ʻike kūpono, ʻoi aku ka nui o ka ʻāpana, ʻoi aku ka maikaʻi o ka hana mānoanoa. ʻO ia hoʻi, pono ka nui o ka wai i ka viscosity kiʻekiʻe, a ʻaʻole loli nui ka paʻa wai.

3. Nui nā hui e hoʻohana i nā ratio like ʻole, ʻo ia hoʻi, ʻokoʻa nā mortar a me cellulose ether, akā no nā hale liʻiliʻi, e hoʻonui ia i ke kumukūʻai. Hoʻohana wale nā ​​hale liʻiliʻi i hoʻokahi fiber plastic ether no ka hoʻohana maʻamau, ʻo ia hoʻi, ʻokoʻa ka dosage. ! ʻO ka maʻamau, ʻo 100,000 mau ʻāpana ka mea i hoʻohana nui ʻia.

4. Hoʻohana pinepine ʻia ka viscosity 200,000 no ka hoʻopaʻa ʻana i ka hamo, a ʻo ka 100,000 no ka hoʻonui ʻana iā ia iho, 100,000 no ka hoʻomaʻamaʻa ponoʻī, a me 80,000 no ka plastering. ʻOiaʻiʻo, hoʻoholo nui ʻia e ka maikaʻi o ka mālama ʻana i ka wai. ʻAʻole mākou e paipai i nā mea kūʻai aku e hoʻohana i ka viscosity kiʻekiʻe. No ka laʻana, no nā ʻāpana 200,000, ʻoi aku ka kiʻekiʻe o ka viscosity o cellulose ether, ʻoi aku ka paʻa ʻole, a ʻoi aku ka nui o nā huahana hoʻopunipuni. Ke hōʻike nei kekahi poʻe kūʻai aku ua paʻa loa ka huahana 20W maoli a ʻaʻole maikaʻi loa ke kūkulu ʻana.

5. ʻOkoʻa ka paʻa wai o ka cellulose ether i hoʻohana ʻia i ka mortar me ka paʻa wai o ka cellulose ether i ka hoʻokolohua. ʻOiai inā maikaʻi ka paʻa ʻana o ka wai o ka cellulose ether ponoʻī, ʻaʻole ia he manaʻo ʻo ka hopena i loko o ka mortar ua maopopo ʻo Well, ua hoʻoholo nui ʻia e ka hana o nā mea hoʻohui i koe i ke ʻano, ka nui o ka hoʻohui, a me ka hopena hui ʻana o ka mea paahana pauda maloo. ʻOi aku ka maikaʻi o ka hoʻohana ʻana ma ka paia e ʻike i ka hopena. ʻO kēia ka ʻoiaʻiʻo!