ʻO ka cellulose ether kahi ʻano non-ionic semi-synthetic high molecular polymer. Loaʻa iā ia ʻelua ʻano o ka wai-soluble a me ka solvent-based properties. Loaʻa nā hopena like ʻole i nā ʻoihana like ʻole. No ka laʻana, i loko o nā mea hale kemika, loaʻa iā ia nā hopena i hui pū ʻia: ①Water-retaining agent ②Thickener ③Leveling ④Film-forming ⑤Binder; i ka ʻoihana PVC, he emulsifier a me ka dispersant; i ka ʻoihana lāʻau lapaʻau, he mea hoʻopaʻa a No ka mea he ʻano like ʻole ka cellulose i nā hopena composite, ʻo ia hoʻi ka mea i hoʻohana nui ʻia. Ma lalo nei e nānā au i ka hoʻohana ʻana a me ka hana o nā cellulose ethers i loko o nā mea kūkulu hale.
1. I ka pena latex
I ka ʻoihana pena latex, pono e koho ʻia ka hydroxyethyl cellulose. ʻO ka kikoʻī maʻamau o ka viscosity ʻo RT30000-50000cps, a ʻo ka helu kuhikuhi maʻamau ma kahi o 1.5‰-2‰. ʻO ka hana nui o ka hydroxyethyl i ka pena latex ʻo ia ka mānoanoa, pale i ka gelation pigment, kōkua i ka hoʻopuehu puaʻa, latex, a me ka paʻa, a hiki ke hoʻomaikaʻi i ka viscosity o nā ʻāpana a kōkua i ka pae hoʻokō o ke kūkulu ʻana: ʻoi aku ka maʻalahi o ka hydroxyethyl Ethyl cellulose e hoʻohana. Hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu a me ka wai wela, ʻaʻole pili i ka waiwai pH. Hiki ke hoʻohana ʻia ma waena o ka waiwai pH o 2 a me 12. Aia nā ʻano ʻekolu:
I. Hoʻohui pololei i ka hana ʻana:
Pono kēia ʻano e koho i ka hydroxyethyl cellulose i hoʻopaneʻe ʻia - hydroxyethyl cellulose me ka manawa hoʻopau ʻoi aku ma mua o 30 mau minuke. Penei nā ʻanuʻu e hoʻohana ai: ① E hoʻohui i kekahi nui o ka wai maʻemaʻe i loko o kahi pahu me kahi mea hoʻouluulu kiʻekiʻe ② E hoʻomaka i ka hoʻoulu ʻana me ka wikiwiki haʻahaʻa, a ma ka manawa like e hoʻohui i ka hui hydroxyethyl i loko o ka hopena ③ E hoʻomau i ka hoʻoulu ʻana. a hiki i ka pulu ana o na mea ili a pau ④ E hoohui i na mea hoohui a me na mea hou alkaline, etc. ⑤ E hooulu a hiki i ka hydroxyethyl a pau pau loa nā hui, E hoʻohui i ke koena o nā meaʻai i loko o ka meaʻai a wili a hiki i ka pau ʻana.
Ⅱ. Hoʻolako ʻia me ka ʻona makuahine:
Hiki i kēia ʻano ke koho i ke ʻano koke, a loaʻa ka hopena o ka cellulose anti-mildew. ʻO ka maikaʻi o kēia ʻano hana ʻoi aku ka maʻalahi a hiki ke hoʻohui pololei ʻia i ka pena latex. ʻO ke ʻano o ka hoʻomākaukau ʻana ua like ia me nā ʻanuʻu o ①–④.
Ⅲ. No ka hoʻomākaukau ʻana i nā waiwai e like me ka porridge:
No ka mea, ʻo nā mea hoʻoheheʻe organik he mau mea hoʻoheheʻe maikaʻi ʻole (inoluble) no nā hui hydroxyethyl, hiki ke hana ʻia nā porridges me kēia mau solvents. ʻO nā mea hoʻoheheʻe organik i hoʻohana pinepine ʻia he wai kūlohelohe i loko o nā ʻano pena latex, e like me ka ethylene glycol, propylene glycol a me nā mea hana kiʻiʻoniʻoni (e like me diethylene glycol butyl acetate). Hiki ke hoʻohui pololei ʻia ka porridge hydroxyethyl cellulose i ka pena. E hoʻomau i ka hoʻouluʻana a hiki i ka hemo loa.
2, ʻokiʻoki i ka pā pā
I kēia manawa, mahalo nui ʻia e ka poʻe ka putty pili i ke kaiapuni i kūpaʻa i ka wai a me ka ʻōpala i ka hapa nui o nā kūlanakauhale o koʻu ʻāina. I nā makahiki i hala iho nei, no ka mea, ʻo ka putty i hana ʻia i ke kāpili kūkulu e hoʻopuka i ke kinoea formaldehyde a hōʻino i ke olakino o nā kānaka, hana ʻia ke kāpili kūkulu ʻia me ka polymer Ua hoʻomākaukau ʻia e ka hopena acetal o ka waiʻona vinyl a me ka formaldehyde. No laila, hoʻopau mālie ʻia kēia mea e ka poʻe, a ua hoʻololi ʻia nā huahana cellulose ether series e kēia mea, ʻo ia hoʻi, ka hoʻomohala ʻana i nā mea hale e pili ana i ke kaiapuni, ʻo ka cellulose wale nō ka mea i kēia manawa.
I loko o ka putty wai-kūpaʻa, ua māhele ʻia i ka pauka maloʻo putty a me ka putty paste. Ma waena o kēia mau ʻano putty ʻelua, koho maʻamau ka methyl cellulose a me ka hydroxypropyl methyl. ʻO ka kikoʻī viscosity ma waena o 30000-60000cps. ʻO nā hana nui o ka cellulose i ka putty ka mālama ʻana i ka wai, ka hoʻopaʻa ʻana a me ka lubrication.
No ka mea he ʻokoʻa nā ʻano putty o nā mea hana like ʻole, he calcium hina, calcium māmā, sima keʻokeʻo, a me nā mea ʻē aʻe, a ʻo kekahi he pauka gypsum, calcium hina, calcium māmā, a me nā mea ʻē aʻe, no laila e koho nā ʻano ʻelua i nā kikoʻī cellulose, viscosity a me ke komo ʻana. . ʻO ka huina hoʻohui e pili ana i 2‰-3‰.
I ke kūkulu ʻia ʻana o ka putty pā pōhaku, no ka mea, ʻo ka ʻili o ka pā o ka pā i kekahi wai absorption (ʻo ka wai absorption rate o ka pā pōhaku ʻo 13%, a ʻo ka wai absorption rate o ka pahu he 3-5%), hui pū ʻia me ka hoʻoheheʻe ʻana o ka honua i waho, inā he wikiwiki ka wai o ka putty, e alakaʻi ia i nā māwae a i ʻole ka pauka a me nā mea ʻē aʻe, a laila e hoʻonāwaliwali ai ka ikaika o ka putty. No kēia kumu, ʻo ka hoʻohui ʻana i ka cellulose ether e hoʻoponopono i kēia pilikia. Akā ʻo ka maikaʻi o ka mea hoʻopihapiha, ʻoi aku ka maikaʻi o ka lime calcium, he mea nui loa. No ka mea he viscosity kiʻekiʻe ka cellulose, hoʻonui ia i ka buoyancy o ka putty, pale i ka sagging i ka wā o ke kūkulu ʻana, a ʻoi aku ka ʻoluʻolu a me ka mālama ʻana i ka hana ma hope o ka ʻoki ʻana.
3. ʻO ka pāpaʻi paʻa
I loko o ka mīkini paʻakai, e hoʻokō maoli i ka ikaika hope, pono e hoʻomaʻemaʻe piha ʻia ka sima, ʻoi aku ka nui o ke kūkulu ʻana i ke kauwela, e nalowale koke ka wai i ka wai, a lawe ʻia nā ana o ka hydration piha e mālama a kāpīpī i ka wai. ʻO ka ʻōpala o nā kumuwaiwai a me ka hana maʻalahi, ʻo ke kī ʻo ia wale nō ka wai ma luna o ka ʻili, a ʻaʻole i hoʻopiha ʻia ka hydration o loko, no laila ʻo ka hopena i kēia pilikia e hoʻohui i ka hydroxypropyl methyl cellulose a i ʻole methyl cellulose i ka mortar concrete. ʻO ka kikoʻī viscosity ma waena o 20000–60000cps, ʻo ka nui o ka hoʻohui ʻana ma kahi o 2‰–3‰, a hiki ke hoʻonui ʻia ka nui o ka mālama ʻana i ka wai ma mua o 85%. ʻO ke ʻano o ka hoʻohana ʻana i ka mortar concrete ka hui ʻana i ka pauka maloʻo me ka like a laila hoʻohui i ka wai.
4. I ka hoʻopalapala ʻana i ka hamo, ka hamo hoʻopaʻa ʻana a me ka hamo ʻana
Me ka hoʻomohala wikiwiki ʻana o ka ʻoihana kūkulu, ke piʻi nei ka makemake o nā kānaka no nā mea hale hou i kēlā me kēia lā. Ma muli o ka hoʻonui ʻana o ka ʻike o ka poʻe i ka mālama ʻana i ke kaiapuni a me ka hoʻomau mau ʻana o ka hana ʻana o ke kūkulu ʻana, ua ulu wikiwiki nā huahana gypsum cementitious. I kēia manawa, ʻo nā huahana gypsum maʻamau ka plastering gypsum, gypsum bonding, inlaying gypsum, tile adhesive a pēlā aku.
ʻO Stucco plaster kahi ʻano mea hoʻonaninani kiʻekiʻe no nā paia o loko a me nā hale. ʻO nā pā i hamo ʻia me ia, ua maikaʻi a paʻa, ʻaʻole e hāʻule i ka pauka, e hoʻopaʻa paʻa i ka substrate, ʻaʻohe māha a hāʻule, a he pale ahi; ʻO ka hamo hoʻopaʻa ʻana he ʻano hamo. ʻO kahi ʻano hou o ka hoʻopili ʻana i ka papa kukui hale kahi mea paʻa i hana ʻia me ka gypsum ma ke ʻano he kumu kumu a hoʻohui i nā mea hoʻohui like ʻole. He kūpono ia no ka hoʻopaʻa ʻana ma waena o nā mea pā hale hale inorganic. ʻAʻohe mea ʻawaʻawa, ʻono ʻole, loaʻa iā ia nā ʻano o ka ikaika mua, ka hoʻonohonoho wikiwiki a me ka hoʻopaʻa paʻa ikaika, a he mea kākoʻo no ke kūkulu ʻana i nā papa kūkulu hale a me nā poloka;
ʻO kēia mau huahana gypsum he mau hana like ʻole, ma kahi o ka hana o ka gypsum a me nā mea hoʻopihapiha pili, ʻo ke kumu nui ʻo ia ka hoʻohui ʻana o ka cellulose ether auxiliary i ke kuleana alakaʻi. No ka hoʻokaʻawale ʻana o ka gypsum i ka gypsum anhydrite a me ka hemihydrate, ʻokoʻa ka hopena o ka gypsum i ka hana o ka huahana, no laila ʻo ka mānoanoa, ka paʻa ʻana o ka wai a me ka hoʻihoʻi ʻana e hoʻoholo i ka maikaʻi o nā mea kūkulu hale gypsum. ʻO ka pilikia maʻamau o kēia mau mea ʻo ia ka haki ʻana, a ʻaʻole hiki ke loaʻa ka ikaika mua. No ka hoʻoponopono ʻana i kēia pilikia, ʻo ia ka pilikia o ke koho ʻana i ke ʻano cellulose a me ke ʻano hoʻohana hoʻohui o ka retarder. Ma kēia ʻano, koho maʻamau ka methyl a i ʻole hydroxypropyl methyl 30000. –60000cps, ʻo ka helu hoʻohui ma waena o 1.5‰–2‰, ʻo ka manaʻo o ka cellulose ʻo ka paʻa ʻana o ka wai, hoʻihoʻi a me ka lubrication.
Eia naʻe, ʻaʻole hiki ke hilinaʻi i ka cellulose ether ma ke ʻano he retarder, a pono e hoʻohui i ka citric acid retarder e hui a hoʻohana i ʻole e hoʻopilikia ʻia ka ikaika mua.
ʻO ka nui o ka paʻa ʻana o ka wai e pili ana i ka nalowale maoli o ka wai me ka ʻole o ka lawe ʻana o ka wai i waho. Inā maloʻo loa ka pā, ʻo ka hoʻomoʻa ʻana o ka wai a me ka hoʻoheheʻe maoli ʻana ma ka ʻili kumu e lilo koke ka wai i ka mea, a e hiki mai ana ka hollowing a me ka pohā.
Hoʻohui ʻia kēia ʻano hoʻohana me ka pauka maloʻo. Inā hoʻomākaukau ʻia kahi haʻina, e ʻoluʻolu e nānā i ke ʻano hoʻomākaukau o ka hopena.
5. ʻO ka momi hoʻokaʻawale
He ʻano hou ʻano mea hoʻoheheʻe wela o ka paia o loko ma ka ʻāina ʻākau. He mea pā ia i haku ʻia me nā mea hoʻoheheʻe wela, ka mortar a me ka mea hoʻopaʻa. I loko o kēia mea, he mea nui ka cellulose i ka hoʻopaʻa ʻana a me ka hoʻonui ʻana i ka ikaika. E koho maʻamau i ka methyl cellulose me ka viscosity kiʻekiʻe (e pili ana i 10000eps), ma waena o 2‰-3‰ ka nui o ke ʻano), a ʻo ke ʻano o ka hoʻohana ʻana ʻo ke ʻano hui ʻana i ka pauka maloʻo.
6. Agena Interface
ʻO HPNC20000cps ka mea hoʻopili, a ʻoi aku ka paʻa o ka tile ma mua o 60000cps. I loko o ka mea kikowaena interface, hoʻohana nui ʻia e like me kahi mānoanoa, hiki ke hoʻomaikaʻi i ka ikaika tensile a me ke kū ʻana o ka pua.
Ka manawa hoʻouna: Nov-02-2022