Focus on Cellulose ethers

Ka hoʻohana ʻana i ka cellulose ether i nā mea kūkulu hale mālama kaiapuni

ʻO ka cellulose ether kahi polymer semi-synthetic non-ionic, ʻo ia ka wai-soluble a me ka solvent-soluble. Loaʻa nā hopena like ʻole i nā ʻoihana like ʻole. No ka laʻana, i loko o nā mea hana kemika, loaʻa iā ia nā hopena i hui pū ʻia: ① mea mālama wai ② mānoanoa ③ waiwai pae ④ waiwai hana kiʻiʻoniʻoni ⑤ binder; i ka ʻoihana polyvinyl chloride, he emulsifier a me ka dispersant; i loko o ka ʻoihana lāʻau lapaʻau, he mea hoʻopaʻa a me ka mea hoʻopaʻa hoʻokuʻu i nā mea iwi iwi, a me nā mea ʻē aʻe, no ka mea, he ʻano like ʻole ka cellulose i nā hopena composite, no laila ʻoi aku ka nui o kāna mau kahua noi. Ma hope aʻe, e nānā au i ka hoʻohana ʻana a me ka hana o ka cellulose ether i nā mea kūkulu hale mālama kaiapuni.

 

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 o ka puaʻa, kōkua i ka hoʻopuehu ʻana, ka latex, a me ka paʻa o ka puaʻa, a hoʻonui i ka viscosity o ka ʻāpana, he mea kōkua ia no ka hana pae ʻana o ka hana. 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 ʻekolu mau ʻano hoʻohana:

 

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: ① E hoʻohui i ka nui o ka wai maʻemaʻe i loko o kahi pahu i hoʻolako ʻia me kahi mea hoʻouluulu kiʻekiʻe ② E hoʻomaka i ka hoʻoulu ʻana me ka wikiwiki haʻahaʻa, a ma ka manawa like e hoʻohui mālie i ka hui hydroxyethyl i loko o ka hopena ③E hoʻomau i ka hoʻoulu ʻana. a hiki i ka pau ʻana o nā mea granular ④Hoʻohui i nā mea kōkua ʻē aʻe a me nā mea hoʻohui kumu, a me nā mea ʻē aʻe.

 

Ⅱ. Hoʻolako ʻia me ka waiʻona makuahine no ka hoʻohana hope ʻana:

Hiki i kēia ʻano ke koho i ke ʻano koke, a he anti-mildew hopena cellulose. 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 e like me nā ʻanuʻu ①-④.

 

Ⅲ. E hoʻomākaukau i loko o ka porridge no ka hoʻohana hope ʻana:

No ka mea, ʻo nā mea hoʻoheheʻe organik he mau mea hoʻoheheʻe maikaʻi ʻole (inoluble) no ka hydroxyethyl, hiki ke hoʻohana ʻia kēia mau mea hoʻoheheʻe e hana i ka porridge. ʻO nā mea hoʻoheheʻe kūlohelohe maʻamau i hoʻohana ʻia, ʻo ia nā wai kūlohelohe i loko o nā hana 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 pono ʻia ka porridge hydroxyethyl cellulose i ka pena. E hoʻomau i ka hoʻouluʻana a hiki i ka hemo loa.

 

2. I loko o ka pā e ʻoki ana i ka putty

I kēia manawa, ma ka hapa nui o nā kūlanakauhale o koʻu ʻāina, ua waiwai nui ʻia e ka poʻe ka putty kūpaʻa i ka wai a me ka scrub-resistant environment-friendly putty. Hana ʻia ia e ka hopena acetal o ka waiʻona vinyl a me ka formaldehyde. No laila, hoʻopau mālie ʻia kēia mea e nā kānaka, a hoʻohana ʻia nā huahana cellulose ether series e pani i kēia mea. ʻO ia hoʻi, no ka hoʻomohala ʻana i nā mea hale e pili ana i ke kaiapuni, ʻo cellulose wale nō ka mea i kēia manawa.

 

I loko o ka putty wai-kūpaʻa, ua māhele ʻia i ʻelua ʻano: putty pauka maloʻo a me putty paste. Ma waena o kēia mau ʻano putty ʻelua, pono e koho ʻia ka methyl cellulose a me ka hydroxypropyl methyl. ʻO ka kikoʻī viscosity maʻamau ma waena o 30000-60000cps. ʻO ka hana nui o ka cellulose i ka putty ka mālama ʻana i ka wai, ka hoʻopaʻa ʻana, ka lubrication a pēlā aku.

 

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, etc., no laila nā kikoʻī, viscosity a me ke komo ʻana o cellulose i loko ʻokoʻa nō hoʻi nā papa ʻelua. ʻO ka nui i hoʻohui ʻia ma kahi o 2‰-3‰.

 

I ke kūkulu ʻana i ka putty ʻokiʻoki ʻana i ka pā, no ka mea, ʻo ka ʻili o ka pā o ka pā i kahi pae o ka hoʻoheheʻe wai (ʻo ka nui o ka hoʻoheheʻe wai o ka pā pōhaku ʻo 13%, a ʻo ka nui o ka hoʻoheheʻe ʻana o ka wai he 3-5%), hui pū me ka hoʻoheheʻe ʻana o ka honua i waho, inā e nalowale koke ka wai o ka putty, e alakaʻi ia i nā māwae a i ʻole ka pauka e hoʻonāwaliwali ai i ka ikaika o ka putty. No laila, 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 calcium lehu he mea nui loa. Ma muli o ka viscosity kiʻekiʻe o ka cellulose, ua hoʻonui ʻia ka buoyancy o ka putty, a pale ʻia ke ʻano 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 i ka ikaika hope loa, pono e hoʻopiha piha ʻia ka sima. ʻOi aku i ka hana ʻana i ke kauwela, e nalowale ka wai o ka mortar sima, a ua hoʻohana ʻia nā ana o ka hydration piha e mālama a kāpīpī i ka wai. ʻO ka hoʻopau ʻana i nā kumuwaiwai a me ka hana kūpono ʻole, ʻo ke kī ʻo ka wai wale nō ma luna o ka ʻili, a ʻaʻole i hoʻopiha ʻia ka hydration o loko, no laila ʻo ka hopena o kēia pilikia e hoʻohui i ka hydroxypropyl methylcellulose a i ʻole methylcellulose 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 e hoʻohui i ka wai ma hope o ka hui ʻana o ka pauka maloʻo.

 

4. I ke kāpili ʻana i ka gypsum, hoʻopaʻa gypsum, caulking gypsum

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 i hoʻopaʻa ʻia, gypsum inlaid, a me ka hoʻopili tile.

 

ʻO ka plastering gypsum kahi mea plastering kiʻekiʻe no nā paia o loko a me nā kaupaku. ʻO ka ʻili o ka pā i hamo ʻia me ia he maikaʻi a maʻemaʻe, ʻaʻole e hāʻule i ka pauka, paʻa paʻa i ke kumu, ʻaʻohe māha a hāʻule, a he hana pale ahi; ʻO ka gypsum paʻa ʻia he ʻano hou o ka hoʻopili ʻana i ka papa kukui hale he 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, nā hiʻohiʻona e like me ka ikaika mua, ka hoʻonohonoho wikiwiki, a me ka hoʻopaʻa paʻa ʻana, he mea kākoʻo ia no ke kūkulu ʻana i nā panela a me ke kūkulu ʻana i ka poloka; ʻO ka gypsum caulking agent he mea hoʻopiha āpau ma waena o nā panela gypsum a me kahi hoʻopihapiha hoʻopihapiha no nā paia a me nā māwae.

 

ʻO kēia mau huahana gypsum he mau hana like ʻole. Ma waho aʻe o ka hana o ka gypsum a me nā mea hoʻopihapiha pili, ʻo ka pilikia koʻikoʻi ʻo ka hoʻohui ʻana o ka cellulose ether additives i ke kuleana nui. Ma muli o ka hoʻokaʻawale ʻia ʻana o ka gypsum i ka gypsum anhydrous a me ka gypsum 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 ka hollowing a me ka haki ʻana, a ʻaʻole hiki ke loaʻa ka ikaika mua. No ka hoʻoponopono ʻana i kēia pilikia, ʻo ia ke koho ʻana i ke ʻano o ka cellulose a me ke ʻano hoʻohana pūhui o ka retarder. Ma kēia ʻano, koho maʻamau ka methyl a i ʻole hydroxypropyl methyl 30000. –60000cps, ʻo ka nui i hoʻohui ʻia ma waena o 1.5‰–2‰, hoʻohana nui ʻia ka cellulose no ka paʻa ʻana o ka wai a me ka lubrication retarding.

 

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 me ka ʻole o ka hoʻopili ʻana i ka ikaika mua.

 

ʻO ka mālama ʻana i ka wai e pili ana i ka nui o ka wai e nalowale maoli me ka ʻole o ka lawe ʻana i ka wai i waho. Inā maloʻo loa ka pā, ʻo ka hoʻoheheʻe ʻia ʻana o ka wai a me ka hoʻoheheʻe maoli ʻana ma ka ʻili kumu e hoʻolilo koke i ka wai i ka wai, a e hiki mai ana ka hollowing a me ka pohā.

 

Hoʻohui ʻia kēia ʻano hoʻohana me ka pauka maloʻo. Inā hoʻomākaukau ʻoe i kahi hāʻina, e ʻoluʻolu e nānā i ke ʻano hoʻomākaukau o ka hopena.

 

5. ʻO ka mīkini hoʻoheheʻe wela

He ʻano hou ʻano mea hoʻolalelale paia i loko o ka ʻāina ʻākau. He mea pā ia i hoʻohui ʻia e ka mea insulation, mortar a me ka binder. 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‰ ke ʻano o ka hoʻohana ʻana, ʻo ke ʻano o ka hoʻohana ʻana ʻo ka hui ʻana i ka pauka maloʻo.

 

6. Agena Interface

Pono ka tile adhesive ma luna o 60,000cps, a pono e hoʻohana ʻia ma ke ʻano he mānoanoa i ka mea hoʻopili, hiki ke hoʻomaikaʻi i ka ikaika tensile a me ka ikaika anti-arrow.


Ka manawa hoʻouna: Jan-31-2023
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