Nā ʻano o ka Methyl Cellulose Etera
A. ʻO ka Hydroxypropyl methylcellulose (HPMC) ka mea i hana nui ʻia me ka pulupulu hoʻomaʻemaʻe maʻemaʻe maʻemaʻe e like me ka mea maka, kahi i hoʻokaʻawale ʻia ma lalo o nā kūlana alkaline.
B. ʻO ka Hydroxyethyl methyl cellulose (HEMC), kahi etera cellulose non-ionic, he pauka keʻokeʻo, ʻala ʻole a ʻono ʻole.
C？ ʻO ka Hydroxyethylcellulose (HEC) he surfactant non-ionic, keʻokeʻo ke nānā aku, ʻaʻole ʻono a ʻono ʻole a maʻalahi ke kahe ʻana o ka pauka.
ʻO nā mea i luna nei he mau ethers cellulose non-ionic, a me nā ethers cellulose ionic (e like me carboxymethyl cellulose (CMC)).
I ka wā o ka hoʻohana ʻana i ka mortar pauka maloʻo, no ka mea ʻaʻole paʻa ka ionic cellulose (CMC) i ke alo o nā ion calcium, ʻaʻole i hoʻohana pinepine ʻia i nā ʻōnaehana gelling inorganic me ka sima a me ka lime slaked e like me nā mea cementing. Ma kekahi mau wahi ma Kina, Hoʻohana ʻia kekahi mau putties o loko me ka starch i hoʻololi ʻia e like me ke kumu cementing material a me ka pauka Shuangfei e like me ka hoʻohana ʻana o ka mea hoʻopihapiha i ka CMC ma ke ʻano he mānoanoa, akā no ka mea hiki i kēia huahana ke maʻa a ʻaʻole kū i ka wai, ua hoʻopau ʻia ia. e ka makeke .
I kēia manawa, ua kapa ʻia ʻo hydroxypropyl methylcellulose ether (HPMC) a me ka hydroxyethyl methylcellulose ether (HEMC) nā mea hoʻohana maʻamau cellulose eter i loko o nā huahana mortar maloʻo maloʻo. No nā huahana me nā hoʻohana like ʻole, ʻokoʻa ke ʻano o ka cellulose ether, e like me ka haʻahaʻa e like me ka 0.02% e like me ka mortar pā i ka 0.1%. E like me ka plastering mortar, hiki ke kiʻekiʻe mai 0.3% a i 0.7% e like me ka tile adhesive.
Nā waiwai o ka Cellulose Etera
❶ He maikaʻi loa ka paʻa wai o ka cellulose ether i loko o ka pahū. Hiki i kāna hana paʻa wai ke pale i ka substrate mai ka lawe ʻana i ka wai i ka wikiwiki a keʻakeʻa i ka hoʻoheheʻe ʻana o ka wai, i mea e hōʻoia ai i ka lawa o ka wai i ka wā e hydrated ka sima. Hiki iā ia ke pale pono i ka mortar mai ka maloʻo a me ka haki ʻana ma muli o ka wikiwiki o ka wai, i ʻoi aku ka lōʻihi o ke kūkulu ʻana o ka mortar.
Ma ka ʻōlelo maʻamau, piʻi ka paʻa ʻana o ka wai o ka slurry cement me ka hoʻonui ʻana o ka ʻike o ka cellulose ether. ʻO ka nui o ka viscosity o ka cellulose ether i hoʻohui ʻia, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai.
❷ Hiki i ka hopena mānoanoa o ka cellulose ether ke hoʻomalu i ka mortar e hoʻokō i ka kūlike maikaʻi loa, hoʻomaikaʻi i ka cohesion o ka mortar, hoʻokō i ka hopena anti-sag, hoʻomaikaʻi i ka hana, a hoʻonui nui i ka hana hana.
❸ Hiki i ka cellulose ether ke hoʻomaikaʻi maikaʻi i ka viscosity pulu o ka mortar pulu, e hōʻoia ana i ka hopena maikaʻi o ka mortar pulu ma luna o nā substrate like ʻole.
❹ ʻO ka cellulose ether ka mea e hoʻomaikaʻi nui ai i ka ikaika paʻa o ka mortar, a hiki ke hōʻoia i ka manawa wai kūpono e hoʻomaʻemaʻe piha i ka sima a i loko o kahi ʻano wela kiʻekiʻe, pēlā e hōʻoia ai i ka hoʻopaʻa maikaʻi ʻana o ka mortar.
Ke kahua noi o cellulose ether
Ma muli o ka sima:
⑴. ⑾, paʻipaʻi pōhaku, ⑿, pahū hoʻoponopono, ⒀, slurry hoʻokaʻawale wela, ⒁, EIFS thermal insulation bonding mortar, ⒂, non-shrinkage grouting material.
Nā mea kūkulu hale ʻē aʻe:
⑴, punawai wai, ⑵, lua-hui puna.
Me ka hoʻomohala ʻana i ka mortar maloʻo, ua lilo ka cellulose ether i mea hoʻohui nui sima. Eia nō naʻe, nui nā ʻano a me nā kikoʻī o ka cellulose ether, a ke loli mau nei ka maikaʻi ma waena o nā pūʻulu. I ka hoʻohana ʻana, pono ʻoe e hoʻolohe i:
1. ʻO nā hiʻohiʻona hana o ka mortar i hoʻololi ʻia e pili kokoke ana i ka ulu ʻana o ka viscosity o cellulose ether. ʻOiai ʻo nā huahana me ka viscosity nominal kiʻekiʻe he kiʻekiʻe kiʻekiʻe ka viscosity hope loa, ma muli o ka lohi o ka hemo ʻana, lōʻihi ka manawa e loaʻa ai ka viscosity hope; Eia kekahi, ʻoi aku ka lōʻihi o ka cellulose ether me nā ʻāpana coarser no ka loaʻa ʻana o ka viscosity hope, no laila ʻaʻole pono ka huahana me ka viscosity kiʻekiʻe i nā hiʻohiʻona hana ʻoi aku ka maikaʻi.
2. Ma muli o ka palena o ka degere o ka polymerization o ka cellulose ether maka, ua kaupalena ʻia ka viscosity kiʻekiʻe o ka cellulose ether.
Ka manawa hoʻouna: Feb-02-2023