Hoʻohana nui ʻia ʻo Starch ether i ke kūkulu ʻana i ka mortar, hiki ke hoʻopili i ke kūlike o ka mortar e pili ana i ka gypsum, ka sima a me ka lime, a hoʻololi i ke kūkulu ʻana a me ke kū ʻana o ka mortar. Hoʻohana pinepine ʻia nā ethers starch me nā cellulose ethers i hoʻololi ʻole ʻia a hoʻololi ʻia. He kūpono ia no nā ʻōnaehana kūʻokoʻa a me ka alkaline, a kūpono me ka hapa nui o nā mea hoʻohui i ka gypsum a me nā huahana sima (e like me nā surfactants, MC, starch a me polyvinyl acetate a me nā polymers hiki ke hoʻoheheʻe wai).
ʻO nā hiʻohiʻona o ka starch ether ma lalo nei:
(1) Hoʻomaikaʻi i ka pale sag;
(2) E hoʻomaikaʻi i ke kūkulu ʻana;
(3) ʻOi aku ka nui o ka mīkini palaki.
He aha ka hana nui o ka starch ether i loko o ka gypsum-based dry mortar?
Pane: ʻO ka starch ether kekahi o nā mea hoʻohui nui o ka mortar pauka maloʻo. Hiki ke kūpono me nā mea hoʻohui ʻē aʻe. Hoʻohana nui ʻia ia i nā tile adhesives, hoʻoponopono i nā morta, plastering gypsum, loko a me waho o ka paia putty, gypsum-based caulking a me nā mea hoʻopiha piha, nā mea hoʻopili, masonry I nā morta, kūpono hoʻi ia no ka lima a i ʻole ka hoʻopili ʻana me ka cement-based a gypsum. -mau morta hoʻokumu. Ke hana nei ia penei:
(1) Hoʻohana pinepine ʻia ka starch ether me ka methyl cellulose ether, e hōʻike ana i kahi hopena synergistic maikaʻi ma waena o nā mea ʻelua. ʻO ka hoʻohui ʻana i ka nui kūpono o ka starch ether i ka methyl cellulose ether hiki ke hoʻomaikaʻi nui i ke kūpaʻa sag a me ke kūpaʻa paheʻe o ka mortar, me ka waiwai kiʻekiʻe.
(2) ʻO ka hoʻohui ʻana i ka nui kūpono o ka starch ether i ka mortar i loaʻa i ka methyl cellulose ether hiki ke hoʻonui nui i ka paʻa ʻana o ka mortar, hoʻomaikaʻi i ka wai, a hoʻomaʻamaʻa i ke kūkulu ʻana.
(3) ʻO ka hoʻohui ʻana i ka nui kūpono o ka starch ether i ka mortar i loaʻa i ka methyl cellulose ether hiki ke hoʻonui i ka paʻa ʻana o ka wai o ka pahu a hoʻolōʻihi i ka manawa wehe.
He aha nā pōmaikaʻi o ka noi a me nā ala mālama o ka starch ether?
Pane: Hiki ke hoʻohana ʻia ma ke ʻano he mea hoʻohui no nā huahana ciment-based, nā huahana gypsum-based a me nā huahana lehu-calcium.
(1) Nā pono a me nā noi:
a. He hopena mānoanoa kona ma ka mortar, hiki ke mānoanoa koke, a he lubricity maikaʻi;
b. He liʻiliʻi ka dosage, a hiki ke loaʻa kahi hopena haʻahaʻa loa;
c. E hoʻomaikaʻi i ka mana anti-slide o ka mortar paʻa;
d. hoʻonui i ka manawa hāmama o ka mea;
e. E hoʻomaikaʻi i ka hana hana o ka mea a hoʻomaʻamaʻa i ka hana.
(2) Waihona:
Hiki ke hoʻopili ʻia ka huahana i ka makū a pono e mālama ʻia i kahi maloʻo a maloʻo i loko o ka pahu kumu. ʻOi aku ka maikaʻi o ka hoʻohana ʻana i loko o 12 mau mahina. (Ua paipai ʻia e hoʻohana pū me ka high-viscosity cellulose ether, a ʻo ka lākiō maʻamau o ka cellulose ether i ka starch ether he 7:3~8:2)
He aha ke kuleana o ka methyl cellulose ether i loko o ka mortar pauka maloʻo?
A: ʻO ka methyl hydroxyethyl cellulose ether (MHEC) a me ka methyl hydroxypropyl cellulose ether (HPMC) i hui pū ʻia me ka methyl cellulose ether.
Ma ke kahua o ka pauka maloʻo maloʻo, methyl cellulose ether he mea koʻikoʻi i hoʻololi ʻia no ka pauka maloʻo maloʻo e like me ka plastering mortar, plastering gypsum, tile adhesive, putty, self-leveling material, spray mortar, wallpaper adhesive and caulking material. I loko o nā mortar pauka maloʻo, ʻo ka methyl cellulose ether ka mea nui i ka hana o ka mālama ʻana i ka wai a me ka mānoanoa.
He aha ke kaʻina hana o ka cellulose ether?
Pane: ʻO ka mea mua, ʻoki ʻia ka cellulose maka, a laila alkalized a pulped ma lalo o ka hana o ka soda caustic. E hoʻohui i ka olefin oxide (e like me ka ethylene oxide a i ʻole propylene oxide) a me ka methyl chloride no ka etherification. ʻO ka hope, holoi ʻia ka wai a me ka hoʻomaʻemaʻe ʻana i ka pauka keʻokeʻo. ʻO kēia pauda, ʻoi aku ka nui o kāna hoʻonā wai, loaʻa nā waiwai kino hoihoi. ʻO ka cellulose ether i hoʻohana ʻia i ka ʻoihana kūkulu hale ʻo methyl hydroxyethyl cellulose ether a i ʻole methyl hydroxypropyl cellulose (i hoʻopau ʻia ʻo MHEC a i ʻole MHPC, a i ʻole he inoa maʻalahi MC). He mea koʻikoʻi loa kēia huahana ma ke kahua o ka lepo lepo maloʻo. kuleana nui.
Ka manawa hoʻouna: Jan-30-2023