Hydroxypropyl starch ether (HPS)acellulose eteraʻelua mau mea hoʻohui kemika hana maʻamau, hoʻohana nui ʻia i nā mea kūkulu hale, e like me ka mortar, putty pauda, nā uhi, a me nā mea ʻē aʻe. ʻOiai he mau like ko lākou i kekahi mau waiwai, aia nā ʻokoʻa nui ma nā ʻano he nui e like me nā kumu kumu waiwai, nā hale kemika, nā waiwai kino. , nā hopena noi, a me nā koina.
1. Nā kumu waiwai maka a me ka hana kemika
Hydroxypropyl starch ether (HPS)
Hoʻokumu ʻia ka HPS ma ka starch maoli a loaʻa ma o ka hoʻololi ʻana i ka etherification. ʻO kāna mau mea maka nui ʻo ke kulina, ka palaoa, ka ʻuala a me nā mea kanu maoli ʻē aʻe. Hoʻokumu ʻia nā molekala starch me nā ʻāpana glucose i hoʻopili ʻia e nā paʻa α-1,4-glycosidic a me kahi liʻiliʻi o nā paʻa α-1,6-glycosidic. Ma hope o ka hydroxypropylation, hoʻokomo ʻia kahi pūʻulu hydrophilic hydroxypropyl i loko o ka hale molekala HPS, hāʻawi iā ia i kekahi mau hana mānoanoa, paʻa wai a me nā hana hoʻololi.
cellulose etera
Loaʻa nā cellulose ethers mai ka cellulose maoli, e like me ka pulupulu a me ka lāʻau. Hoʻokumu ʻia ka cellulose me nā ʻāpana glucose i hoʻopili ʻia e nā paʻa β-1,4-glycosidic. ʻO nā eter cellulose maʻamau ka hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), hydroxyethyl cellulose (HEC), a me nā mea ʻē aʻe.
2. Na waiwai kino
Nā hiʻohiʻona hana o HPS
Mānoanoa: He hopena mānoanoa maikaʻi ka HPS, akā ke hoʻohālikelike ʻia me ka cellulose ether, ʻoi aku ka nāwaliwali o kona mānoanoa.
Paʻa wai: He haʻahaʻa ka paʻa wai o ka HPS a he kūpono ia no nā mea hale haʻahaʻa a waena.
Hiki ke hana: Hiki i ka HPS ke hoʻomaikaʻi i ka hana o ka mortar a hōʻemi i ka haʻalulu i ka wā o ke kūkulu ʻana.
Ke kū'ē i ka wela: He mea ko'iko'i ka HPS i ka wela a ua ho'opilikia nui 'ia e ka wela ambient.
Nā hiʻohiʻona hana o cellulose ethers
Mānoanoa: He hopena mānoanoa ko ka cellulose ether a hiki ke hoʻonui nui i ka viscosity o ka mortar a i ʻole putty.
Ka paʻa ʻana o ka wai: ʻO ka cellulose ether ka waiwai paʻa wai maikaʻi loa, ʻoi aku ka nui ma nā wahi wela kiʻekiʻe, hiki ke hoʻolōʻihi i ka manawa wehe o ka mortar a pale i ka nui o ka wai.
Hiki ke hana: He mea maikaʻi loa ka cellulose ether i ka hoʻomaikaʻi ʻana i ka hana a hiki ke hōʻemi pono i nā pilikia e like me ka haki ʻana a me ka pauka.
Kū'ē wela: He hiki ke hoʻololi i ka mahana a me ka hana paʻa o ka cellulose ether.
3. Nā hopena noi
Ka hopena noi oHPS
Ma ka mortar maloʻo, hoʻokani ka HPS i ka hana o ka hoʻomaikaʻi ʻana i ka hana, hoʻomaikaʻi i ka mālama ʻana i ka wai, a hoʻemi i ka delamination a me ka hoʻokaʻawale ʻana. He mea waiwai a kūpono no ka hoʻohana ʻana i nā hiʻohiʻona me nā koi hoʻokele kiʻekiʻe, e like me ka pauka putty pā hale maʻamau, mortar leveling floor, etc.
Hoʻohana i ka hopena o ka cellulose ether
Cellulose ethershoʻohana nui ʻia i loko o nā mīkini hana kiʻekiʻe, nā tile adhesives, nā mea gypsum-based a me nā ʻōnaehana pale o waho. Hiki ke hoʻomaikaʻi maikaʻi i ka ikaika hoʻopaʻa ʻana a me ka hana anti-slip o ka mea ʻoi aku ka mānoanoa a me ka paʻa ʻana o ka wai, a kūpono loa i nā papahana i loaʻa nā koi kiʻekiʻe i ka hana hana a me ka maikaʻi o ka huahana.
4. ʻO ke kumukūʻai a me ka palekana kaiapuni
koina:
He haʻahaʻa ko HPS a he kūpono no ka hoʻohana ʻana i nā mākeke pili kumu kūʻai. ʻO ka cellulose ethers he mea kūʻai nui, akā he hana maikaʻi loa a he kumu kūʻai i ka koi ʻana i nā hana kūkulu.
Palekana kaiapuni:
Loaʻa ʻia nā mea ʻelua mai nā mea kūlohelohe a loaʻa nā waiwai kūlohelohe maikaʻi. Eia nō naʻe, no ka liʻiliʻi o nā reagents kemika i hoʻopau ʻia i ke kaʻina hana o HPS, ʻoi aku ka haʻahaʻa o kona kaumaha kaiapuni.
5. Kumu koho
Nā koi hana: Inā loaʻa iā ʻoe nā koi kiʻekiʻe no ka mānoanoa a me ka mālama ʻana i ka wai, pono ʻoe e koho i ka cellulose ether; no nā mea pili i ke kumu kūʻai akā makemake ʻoe i nā hoʻomaikaʻi ʻana i ka hana, hiki iā ʻoe ke noʻonoʻo e hoʻohana i ka HPS.
Nā hiʻohiʻona hoʻohana: ʻO ke kūkulu ʻana i ka wela kiʻekiʻe, ka pale ʻana i ka paia o waho, ka tile adhesive a me nā hiʻohiʻona ʻē aʻe e koi ana i ke kākoʻo kiʻekiʻe e kūpono i ka cellulose ether; no ka putty pā o loko maʻamau a i ʻole mortar kumu, hiki i ka HPS ke hāʻawi i nā hoʻonā waiwai a kūpono.
Hydroxypropyl starch etheracellulose etera loaʻa i kēlā me kēia mea ko lākou pono ponoʻī a pāʻani lākou i nā kuleana like ʻole i nā mea kūkulu hale. Pono e noʻonoʻo nui ʻia ke koho e pili ana i nā koi o ka hana, ka mālama ʻana i ke kumukūʻai, ke kūkulu hale a me nā mea ʻē aʻe o ka papahana kikoʻī e loaʻa ai ka hopena hoʻohana maikaʻi loa.
Ka manawa hoʻouna: Nov-21-2024