1. Ka mana hana hale o kēia manawa a me ke koi no ka hydroxyethyl cellulose
1.1 Hoʻolauna Huahana
ʻO ka Hydroxyethyl cellulose (i kapa ʻia ʻo hydroxyethyl cellulose) he hydroxyalkyl cellulose koʻikoʻi, i hoʻomākaukau maikaʻi ʻia e Hubert i ka makahiki 1920 a ʻo ia hoʻi he cellulose ether hiki ke hoʻoheheʻe wai me ka nui o ka hana ma ka honua. ʻO kēia wale nō ka nui a me ka hoʻomohala wikiwiki o ka cellulose ether ma hope o CMC a me HPMC. ʻO ka hydroxyethyl cellulose kahi polymer non-ionic wai-soluble i loaʻa ma ke ʻano o ka hana kemika o ka pulupulu hoʻomaʻemaʻe (a i ʻole ka pulp lāʻau). He mea keʻokeʻo, ʻala ʻole, pauka ʻono ʻole a i ʻole mea paʻa paʻa.
1.2 Ka mana hana honua a me ka koi
I kēia manawa, ʻoi aku ka nui o nā ʻoihana hana hydroxyethyl cellulose o ka honua i nā ʻāina ʻē. Ma waena o lākou, he nui nā hui e like me Hercules a me Dow i ʻAmelika Hui Pū ʻIa i ka mana hana ikaika, a ukali ʻia e United Kingdom, Iapana, Netherlands, Kelemānia a me Rusia. Ua manaʻo ʻia he 160,000 tons ka nui o ka hana honua o ka hydroxyethyl cellulose ma 2013, me ka awelika o ka ulu ʻana o ka makahiki he 2.7%.
1.3 Ka mana hana a me ke koi o Kina
I kēia manawa, he 13,000 tons ka nui o ka hana helu helu kūloko o ka hydroxyethyl cellulose. Ma waho aʻe o nā mea hana liʻiliʻi, ʻo ke koena ka hapa nui o nā huahana i hoʻololi ʻia a hui pū ʻia, ʻaʻole ia he hydroxyethyl cellulose i ke ʻano maoli. Kū nui lākou i ka mākeke papa ʻekolu. ʻO ka hoʻopuka ʻana o ka cellulose base ma lalo o 3,000 tons i kēlā me kēia makahiki, a ʻo ka nui o ka mākeke kūloko i kēia manawa he 10,000 tons i kēlā me kēia makahiki, a ʻoi aku ka nui ma mua o 70% i lawe ʻia a hāʻawi ʻia e nā ʻoihana kālā ʻē aʻe. ʻO nā mea hana haole nui ʻo Yakuolong Company, Dow Company, Klein Company, AkzoNobel Company; ʻO nā mea hana huahana hydroxyethyl cellulose home ka nui o North Cellulose, Shandong Yinying, Yixing Hongbo, Wuxi Sanyou, Hubei Xiangtai, Yangzhou Zhiwei, a me nā mea'ē aʻe. noho ʻia e nā huahana haole. Mahele o ka lole lole, resin a me ka inika makeke. Aia kahi ʻokoʻa maikaʻi ma waena o nā huahana kūloko a me nā huahana ʻē aʻe. ʻO ka mākeke kiʻekiʻe kiʻekiʻe o ka hydroxyethyl i hoʻopaʻa ʻia e nā huahana ʻē aʻe, a ʻo nā huahana kūloko ke kumu ma waena a me ka mākeke haʻahaʻa. E hoʻohana i ka hui ʻana e hōʻemi i ka pilikia.
ʻO ka noi no ka mākeke hydroxyethyl cellulose e pili ana i ka ʻāina, ʻo ka Pearl River Delta (South China) ka mea mua; a ukali ʻia e ka muliwai ʻo Yangtze Delta (Kina Hikina); ʻO ke kolu, ʻo ke Komohana Hema a me Kina ʻĀkau; ka luna 12 latex coatings koe wale no Nippon Paint a me Zijinhua, i ke keʻena poʻo ma Shanghai, ke koena i basically aia ma ka Hema Kina wahi. ʻO ka hāʻawi ʻana i nā ʻoihana kemika i kēlā me kēia lā ma Kina Hema a me Kina Hikina.
Ma ka hoʻoholo ʻana mai ka hiki ke hana i lalo, ʻo ka pena ka ʻoihana me ka nui o ka hoʻohana ʻana i ka hydroxyethyl cellulose, a ukali ʻia e nā kemika o kēlā me kēia lā, a ʻo ke kolu, ʻo ka ʻaila, a me nā ʻoihana ʻē aʻe e ʻai liʻiliʻi loa.
Hāʻawi ʻia ka home a me ke koi o ka hydroxyethyl cellulose: ka hāʻawi ʻana a me ke koena koi, ʻoi aku ka liʻiliʻi o ka hydroxyethyl cellulose kiʻekiʻe, a ʻo ka haʻahaʻa haʻahaʻa ʻenehana uhi ʻenehana hydroxyethyl cellulose, petroleum-grade hydroxyethyl cellulose, a me ka hydroxyethyl cellulose i hoʻololi ʻia ʻo Cellulose ka mea i hoʻolako nui ʻia e ʻoihana kūloko. ʻO 70% o ka mākeke hydroxyethyl cellulose kūloko i noho ʻia e nā haole hydroxyethyl cellulose kiʻekiʻe.
Nā waiwai a me ka hoʻohana ʻana o 2-hydroxyethyl cellulose
2.1 Nā waiwai o ka hydroxyethyl cellulose
ʻO nā waiwai nui o ka hydroxyethyl cellulose he mea hiki ke hoʻoheheʻe ʻia i ka wai anuanu a me ka wai wela, ʻaʻohe waiwai gelling. Loaʻa iā ia kahi ākea o ka degere pani, solubility a me ka viscosity. ka ua. Hiki i ka hydroxyethyl cellulose solution ke hana i kahi kiʻiʻoniʻoni, a loaʻa iā ia nā hiʻohiʻona o ke ʻano non-ionic ʻaʻole e launa pū me nā ion a loaʻa ka hoʻohālikelike maikaʻi.
①Kiʻekiʻe ka wela a me ka wai hoʻoheheʻe: Hoʻohālikelike ʻia me ka methyl cellulose (MC), hiki ke hoʻoheheʻe ʻia i ka wai anuanu, hiki ke hoʻoheheʻe ʻia ka hydroxyethyl cellulose i ka wai wela a i ʻole ka wai anuanu. Ka laulā o ka solubility a me ka viscosity ano, a me ka non-thermal gelation;
②Paʻakai pale: Ma muli o kona ʻano non-ionic, hiki iā ia ke hui pū me nā polymers hiki ke hoʻoheheʻe ʻia i ka wai, surfactants a me nā paʻakai ma kahi ākea. No laila, ke hoʻohālikelike ʻia me ka ionic carboxymethyl cellulose (CMC), ʻoi aku ka maikaʻi o ka paʻakai hydroxyethyl cellulose.
③Ka paʻa ʻana o ka wai, ka pae ʻana, ka hana kiʻiʻoniʻoni: ʻoi aku ka paʻa o ka paʻa wai i ka methyl cellulose, me ka hoʻoponopono maikaʻi ʻana a me ka hana kiʻiʻoniʻoni maikaʻi loa, ka emi ʻana o ka wai, miscibility, pale colloid sex.
2.2 Hoʻohana i ka hydroxyethyl cellulose
ʻO ka Hydroxyethyl cellulose kahi huahana cellulose ether non-ionic wai, hoʻohana nui ʻia i nā hale kūkulu hale, petroleum, polymer polymerization, lāʻau lapaʻau, hoʻohana i kēlā me kēia lā, pepa a me ka inika, nā lole, nā seramika, ke kūkulu ʻana, ka mahiʻai a me nā ʻoihana ʻē aʻe. Loaʻa iā ia nā hana o ka mānoanoa, hoʻopaʻa, emulsifying, dispersing a stabilizing, a hiki ke mālama i ka wai, hana i kahi kiʻiʻoniʻoni a hāʻawi i ka hopena colloid pale. Hiki ke hoʻoheheʻe ʻia i ka wai anuanu a me ka wai wela, a hiki ke hāʻawi i kahi hoʻonā me kahi ākea o ka viscosity. ʻO kekahi o ka cellulose ethers wikiwiki.
1) Pena Latex
ʻO ka Hydroxyethyl cellulose ka mānoanoa maʻamau i hoʻohana ʻia i nā uhi latex. Ma waho aʻe o ka mānoanoa o ka latex coatings, hiki iā ia ke emulsify, hoʻopuehu, hoʻopaʻa a mālama i ka wai. Hōʻike ʻia ia e ka hopena mānoanoa kupaianaha, hoʻomohala kala maikaʻi, waiwai hana kiʻiʻoniʻoni a me ka mālama paʻa. ʻO ka Hydroxyethyl cellulose kahi mea ionic cellulose derivative hiki ke hoʻohana ʻia i kahi ākea pH ākea. He kūpono maikaʻi me nā mea ʻē aʻe i loko o ka ʻāpana (e like me nā puaʻa, nā mea hoʻohui, nā mea hoʻopiha a me nā paʻakai). ʻO nā uhi i mānoanoa ʻia me ka hydroxyethyl cellulose he rheology maikaʻi ma nā ʻano ʻoki like ʻole a he pseudoplastic. Hiki ke hoʻohana ʻia nā ʻano hana hana e like me ka palaki ʻana, ka uhi ʻana i ka wili, a me ka pipi ʻana. Maikaʻi ke kūkulu ʻana, ʻaʻole maʻalahi e kulu, sag a splash, a me ka pae maikaʻi.
Ka manawa hoʻouna: Nov-11-2022