ʻO nā cellulose ethers i hoʻololi ʻia he hui like ʻole o nā pūhui kemika i loaʻa mai ka cellulose, kahi polymer kūlohelohe i loaʻa i loko o nā paia o nā mea kanu.ʻO ka Cellulose kahi polymer kaulahao laina i haku ʻia me nā ʻāpana glucose i hoʻopili pū ʻia e nā paʻa β-1,4-glycosidic.ʻO ia ka polymer kūlohelohe nui loa ma ka Honua a he nui nā waiwai pono e like me ka ikaika kiʻekiʻe, haʻahaʻa haʻahaʻa, biodegradability, a me ka hoʻohou.
Hoʻokumu ʻia nā eter cellulose i hoʻololi ʻia e ka hoʻokomo ʻana i nā pūʻulu kemika like ʻole i loko o ka molekole cellulose, kahi e hoʻololi ai i kāna mau waiwai kino a me ke kemika.Hiki ke hoʻokō ʻia kēia hoʻololi ʻana e kekahi mau ʻano, me ka etherification, esterification, a me ka oxidation.ʻO ka hopena o ka cellulose ethers i hoʻololi ʻia he nui nā noi i nā ʻoihana like ʻole, me ka meaʻai, nā lāʻau lapaʻau, nā mea hoʻonaninani, ke kūkulu ʻana, a me nā textiles.
ʻO kekahi ʻano maʻamau o ka cellulose ether i hoʻololi ʻia ʻo ia ka methyl cellulose (MC), i hana ʻia ma ka hana ʻana i ka cellulose me ka methyl chloride.ʻO MC kahi polymer non-ionic, wai-soluble i hoʻohana nui ʻia ma ke ʻano he mea mānoanoa i nā meaʻai, ma ke ʻano he mea hoʻopaʻa i nā seramika, a ma ke ʻano he uhi i ka hana pepa.He nui nā pono o ka MC ma mua o nā mea mānoanoa ʻē aʻe, e like me kona hiki ke hana i nā gels transparent, kona haʻahaʻa haʻahaʻa, a me kona kūpaʻa ʻana i ka hoʻohaʻahaʻa ʻana i ka enzyme.
ʻO kekahi ʻano o ka cellulose ether i hoʻololi ʻia ʻo ka hydroxypropyl methyl cellulose (HPMC), i hana ʻia e ka pane ʻana i ka cellulose me kahi hui o propylene oxide a me methyl chloride.ʻO ka HPMC he polymer non-ionic, wai-soluble i hoʻohana nui ʻia ma ke ʻano he mea mānoanoa i nā meaʻai a me nā huahana mālama pilikino, ma ke ʻano he mea hoʻopaʻa i nā papa lāʻau lapaʻau, a ma ke ʻano he uhi i ka ʻoihana kūkulu.He nui nā pono o ka HPMC ma mua o nā mea mānoanoa ʻē aʻe, e like me kona hiki ke hana i nā gel paʻa i nā haʻahaʻa haʻahaʻa, kona viscosity kiʻekiʻe ma nā wela haʻahaʻa, a me kona kūlike me kahi ākea o nā mea ʻē aʻe.
ʻO Carboxymethyl cellulose (CMC) kekahi ʻano o ka cellulose ether i hoʻololi ʻia i hoʻokumu ʻia ma ka hana ʻana i ka cellulose me ka waikawa monochloroacetic.ʻO CMC kahi polymer hiki ke hoʻoheheʻe ʻia i ka wai i hoʻohana nui ʻia ma ke ʻano he mea mānoanoa, stabilizer, a me emulsifier i nā meaʻai, nā lāʻau lapaʻau, a me nā huahana mālama pilikino.He ʻoi aku ka maikaʻi o ka CMC ma mua o nā mānoanoa ʻē aʻe, e like me kona hiki ke hana i nā gels transparent, kona kiʻekiʻe e paʻa i ka wai, a me kona kūpaʻa ʻana i ka hōʻino ʻana i ka enzyme.
ʻO ka Ethyl cellulose (EC) kahi ʻano o ka cellulose ether i hoʻololi ʻia i hana ʻia e ka pane ʻana i ka cellulose me ka ethyl chloride.ʻO EC kahi polymer non-ionic, wai-insoluble i hoʻohana nui ʻia e like me ka uhi ʻana i ka ʻoihana lāʻau.He ʻoi aku ka maikaʻi o ka EC ma mua o nā uhi ʻē aʻe, e like me kona hiki ke hana i kahi kiʻiʻoniʻoni hoʻomau, kona viscosity haʻahaʻa, a me kona kūpaʻa ʻana i ka makū a me ka wela.
ʻO ka Hydroxyethyl cellulose (HEC) kekahi ʻano o ka cellulose ether i hoʻololi ʻia i hana ʻia ma ka hana ʻana i ka cellulose me ka ethylene oxide.ʻO HEC kahi polymer hiki ke hoʻoheheʻe ʻia i ka wai i hoʻohana nui ʻia ma ke ʻano he mea mānoanoa i nā huahana mālama pilikino a ma ke ʻano he mea hoʻopaʻa i nā papa lāʻau lapaʻau.He nui nā pōmaikaʻi o HEC ma mua o nā mānoanoa ʻē aʻe, e like me kona hiki ke hana i nā gels transparent, kona hiki ke paʻa i ka wai kiʻekiʻe, a me kona kūlike me ka nui o nā mea ʻē aʻe.
ʻO nā waiwai a me nā hoʻohana ʻana o nā cellulose ethers i hoʻololi ʻia e hilinaʻi ʻia ma nā kumu he nui, e like me ke ʻano o ka hui kemika i hoʻokomo ʻia, ke degere o ka hoʻololi ʻana, ke kaumaha molekala, a me ka solubility.No ka laʻana, hiki i ka hoʻonui ʻana i ke kiʻekiʻe o ka hoʻololi ʻana o MC a i ʻole HPMC hiki ke hoʻonui i ko lākou mana paʻa wai a me ka viscosity, ʻoiai e hoʻemi ana i kā lākou solubility.Pēlā nō, hiki i ka hoʻonui ʻana i ke kaumaha molekala o CMC ke hoʻonui i kona viscosity a me kona hiki ke hana i nā gels, ʻoiai e hoʻemi ana i kona hiki ke paʻa i ka wai.
ʻO nā noi o nā cellulose ethers i hoʻololi ʻia he nui a ʻokoʻa.I ka ʻoihana meaʻai, hoʻohana ʻia lākou e like me nā mea mānoanoa, stabilizers, a me nā emulsifiers i nā ʻano huahana like ʻole, me ka soup, sauces, dressings, and desserts.Hoʻohana pū ʻia nā cellulose ethers i hoʻololi ʻia i ka hana ʻana i nā meaʻai haʻahaʻa haʻahaʻa a haʻahaʻa-calorie, no ka mea hiki iā lākou ke hoʻohālike i ke ʻano a me ka waha o ka momona me ka ʻole o ka hoʻohui ʻana i nā calorie.Eia kekahi, hoʻohana ʻia lākou e like me nā uhi a me nā glazes i nā huahana confectionery e hoʻomaikaʻi i ko lākou helehelena a me ke ola ʻana.
I ka ʻoihana lāʻau lapaʻau, hoʻohana ʻia nā cellulose ethers i hoʻololi ʻia e like me nā binders, disintegrants, a me nā uhi i nā papa a me nā capsules.Hoʻohana ʻia lākou e like me ka hoʻololi ʻana i ka viscosity i nā ʻano wai, e like me nā syrups a me nā hoʻokuʻu.ʻOi aku ka maikaʻi o nā cellulose ethers i hoʻololi ʻia ma mua o nā mea kōkua ʻē aʻe, no ka mea he inert, biocompatible, a he haʻahaʻa haʻahaʻa.Hāʻawi pū lākou i kahi kiʻekiʻe o ka mana o ka hoʻokuʻu ʻana o nā lāʻau lapaʻau, hiki ke hoʻomaikaʻi i ko lākou pono a me ka palekana.
I loko o ka ʻoihana hoʻonaninani, hoʻohana ʻia nā cellulose ethers i hoʻololi ʻia e like me nā mānoanoa, emulsifiers, a me nā stabilizers i loko o nā creams, lotions, a me nā gels.Hoʻohana ʻia lākou e like me nā mea hana kiʻiʻoniʻoni i nā huahana mālama lauoho, e like me nā shampoos a me nā conditioners.Hiki i nā cellulose ether i hoʻololi ʻia ke hoʻomaikaʻi i ke ʻano a me ke ʻano o nā huahana hoʻonaninani, a me ka hoʻomaikaʻi ʻana i ko lākou pono a me ka paʻa.
I ka ʻoihana kūkulu, hoʻohana ʻia nā cellulose ethers i hoʻololi ʻia e like me nā mānoanoa, nā mea hoʻopaʻa, a me nā mea hoʻopaʻa wai i ka sima, mortar, a me ka plaster.Hiki iā lākou ke hoʻomaikaʻi i ka hana, kūpaʻa, a me ka ikaika o kēia mau mea, a me ka hoʻohaʻahaʻa ʻana i kā lākou shrinkage a me ka haki.Hoʻohana ʻia nā cellulose ethers i hoʻololi ʻia e like me nā uhi a me nā mea hoʻopili i nā uhi pā a me nā papahele.
I ka ʻoihana textile, hoʻohana ʻia nā cellulose ethers i hoʻololi ʻia e like me ke ʻano nui a me nā mānoanoa i ka hana ʻana i nā lole a me nā yarns.Hiki iā lākou ke hoʻomaikaʻi i ka lawelawe ʻana a me ka ulana ʻana i nā waiwai o nā textiles, a me ka hoʻonui ʻana i ko lākou ikaika a me ka lōʻihi.
Ma ke ʻano holoʻokoʻa, ʻo nā cellulose ethers i hoʻololi ʻia he mea maʻalahi a waiwai nui i loaʻa nā noi he nui i nā ʻoihana like ʻole.Hāʻawi lākou i nā pono he nui ma mua o nā polymers ʻē aʻe, e like me kā lākou biocompatibility, biodegradability, a me ke ʻano hou.Hāʻawi pū lākou i kahi kūlana kiʻekiʻe o ka mana ma luna o nā waiwai kino a me nā kemika o nā huahana, hiki ke hoʻomaikaʻi i ko lākou maikaʻi a me ka hana.No laila, hiki ke hoʻomau ʻia nā cellulose ethers i hoʻololi ʻia i ka hana nui i ka hoʻomohala ʻana i nā huahana hou a me nā mea hou i ka wā e hiki mai ana.
Ka manawa hoʻouna: Apr-22-2023