1. Nānā:
ʻO ka cellulose ether he pūhui polymer maoli, ʻo kona ʻano kemika he macromolecule polysaccharide e pili ana i ka anhydrous β-glucose, a aia hoʻokahi pūʻulu hydroxyl mua a ʻelua pūʻulu hydroxyl lua ma kēlā me kēia apo kumu.Ma o ka hoʻololi kemika, hiki ke loaʻa ke ʻano o nā derivatives cellulose, a ʻo ka cellulose ether kekahi o lākou.ʻO ka cellulose ether he hui polymer me kahi hale ether i hana ʻia me ka cellulose, e like me ka methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, a pēlā aku. , propylene oxide a i ʻole monochloroacetic acid.
2. Hana a me nā hiʻohiʻona:
(1) Nā hiʻohiʻona hiʻohiʻona
ʻO ka cellulose ether ka mea maʻamau keʻokeʻo a i ʻole ka waiu keʻokeʻo, ʻaʻala ʻole, ʻona ʻole, ka pauka fibrous wai, maʻalahi ke komo i ka makū, a hoʻoheheʻe ʻia i loko o kahi colloid kūpaʻa viscous i loko o ka wai.
(2) Hoʻokumu kiʻiʻoniʻoni a pili
He mana nui ka etherification o ka cellulose ether i kona mau hiʻohiʻona a me kāna hana, e like me ka solubility, ka hiki ke hana kiʻiʻoniʻoni, ka ikaika paʻa a me ka paʻakai paʻakai.ʻO ka cellulose ether ka ikaika mechanical kiʻekiʻe, ka maʻalahi, ka wela a me ke kū'ē anuanu, a he kūpono maikaʻi me nā resins likeʻole a me nā plasticizers, a hiki ke hoʻohanaʻia e hana i nā plastics, nā kiʻiʻoniʻoni, nā varnishes, nā mea hoʻopili, ka latex a me ka lāʻau lapaʻau.
(3) Hoʻoheheʻe
Hiki ke hoʻoheheʻe ʻia ka Methylcellulose i ka wai anuanu, hiki ʻole ke hoʻoheheʻe ʻia i ka wai wela, a hiki ke hoʻoheheʻe ʻia i loko o kekahi mau mea hoʻoheheʻe organik;Hiki ke hoʻoheheʻe ʻia ka methyl hydroxyethyl cellulose i ka wai anuanu, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai wela a me nā mea hoʻoheheʻe organik.Eia naʻe, ke hoʻomehana ʻia ka wai o ka methylcellulose a me ka methylhydroxyethylcellulose, e hoʻoheheʻe ʻia ka methylcellulose a me ka methylhydroxyethylcellulose.Methylcellulose precipitates ma 45-60°C, oiai ka etherified etherified methyl hydroxyethyl cellulose piʻi i 65-80°C.Ke hoʻohaʻahaʻa ʻia ka mahana, hoʻoheheʻe hou ka ea.Hiki ke hoʻoheheʻe ʻia ka hydroxyethyl cellulose a me ka sodium carboxymethyl hydroxyethyl cellulose i ka wai i kēlā me kēia mahana a hiki ʻole ke hoʻoheheʻe ʻia i nā mea hoʻoheheʻe organik.
(4) mānoanoa
Hoʻoheheʻe ʻia ka cellulose ether i ka wai ma ke ʻano colloidal, a ʻo kona viscosity e pili ana i ka degere o ka polymerization o cellulose ether.Loaʻa i ka hopena nā macromolecules hydrated.Ma muli o ka hoʻopili ʻia ʻana o nā macromolecules, ʻokoʻa ke ʻano o ka hoʻoheheʻe ʻana i ka wai o Newtonian, akā e hōʻike ana i kahi ʻano e loli me ka hoʻololi ʻana i ka ikaika shear.Ma muli o ke ʻano macromolecular o cellulose ether, piʻi wikiwiki ka viscosity o ka hopena me ka piʻi ʻana o ka noʻonoʻo a hoʻemi wikiwiki me ka piʻi ʻana o ka mahana.
Palapala noi
(1) ʻOihana ʻaila
Hoʻohana nui ʻia ka sodium carboxymethyl cellulose i ka ʻili ʻaila, a hoʻohana ʻia i ka hana ʻana i ka lepo e hoʻonui i ka viscosity a hoʻemi i ka nalowale o ka wai.Hiki iā ia ke pale i nā ʻino paʻakai hiki ke hoʻoheheʻe ʻia a hoʻonui i ka hoʻihoʻi ʻana i ka ʻaila.ʻO ka sodium carboxymethyl hydroxypropyl cellulose (NaCMHPC) a me ka sodium carboxymethyl hydroxyethyl cellulose (NaCMHEC) he mau lāʻau lapaʻau wili maikaʻi a me nā mea hana no ka hoʻomākaukau ʻana i nā wai hoʻopau, me ka nui o ka slurrying a me ka paʻakai paʻakai, ʻO ka hana anti-calcium maikaʻi, hiki ke hoʻonui i ka viscosity, ke kūpaʻa mahana. (160 ℃) waiwai.He kūpono ia no ka hoʻomākaukau ʻana i nā wai wili no ka wai hou, ka wai kai a me ka wai paʻakai.Hiki ke hoʻopili ʻia i loko o nā wai wili o nā ʻano like ʻole (103-127g/cm3) ma lalo o ke kaumaha o ka calcium chloride, a loaʻa iā ia kahi viscosity a me ka emi o ka wai haʻahaʻa, ʻoi aku ka maikaʻi o kona hiki ke hoʻonui i ka viscosity a me ka hiki ke hōʻemi i ka wai ma mua o ka hydroxyethyl cellulose. , a he mea hoʻohui maikaʻi ia no ka hoʻonui ʻana i ka hana ʻaila.
ʻO ka sodium carboxymethyl cellulose kahi derivative cellulose i hoʻohana nui ʻia i ke kaʻina hana ʻaila.Hoʻohana ʻia ia i ka wai wili, ka wai cementing, ka wai haʻihaʻi a me ka hoʻomaikaʻi ʻana i ka hoʻihoʻi ʻana o ka aila, ʻoi aku hoʻi i ka wai wili.ʻO ia ka mea nui e hoʻemi i ka nalowale o ka wai a hoʻonui i ka viscosity.Hoʻohana ʻia ʻo Hydroxyethyl cellulose (HEC) ma ke ʻano he mānoanoa lepo a hoʻopaʻa i ke kaʻina hana o ka wili ʻana, hoʻopau maikaʻi a me ka cementing.Ke hoʻohālikelike ʻia me ka sodium carboxymethyl cellulose a me ka guar gum, hydroxyethyl cellulose ka hopena mānoanoa maikaʻi, ka hoʻokuʻu ʻana i ke one ikaika, ka paʻakai kiʻekiʻe, ke kūpaʻa wela maikaʻi, ka liʻiliʻi o ka hui ʻana, ka emi ʻana o ka wai, a me ka haki ʻana o ka gel.Ua hoʻohana nui ʻia ka poloka, ke koena haʻahaʻa a me nā ʻano ʻē aʻe.
(2) Hana hana a pena
Hiki ke hoʻohana ʻia ʻo Sodium carboxymethyl cellulose ma ke ʻano he retarder, ka mea mālama wai, ka mānoanoa a me ka mea hoʻopaʻa no ke kūkulu ʻana i ka masonry a me ka plastering mortar admixtures, a hiki ke hoʻohana ʻia e like me ka plaster, mortar a me nā mea pae ʻāina no ka base gypsum a me ka kumu sima. mea mālama a mānoanoa.ʻO kahi hoʻohui ʻia ʻana o ka masonry kūikawā a me ka plastering mortar i hana ʻia me ka carboxymethyl cellulose, hiki ke hoʻomaikaʻi i ka hana, ka paʻa ʻana o ka wai a me ke kūpaʻa ʻana o ka mortar, a pale aku i ka haki ʻana a me nā hakahaka i ka pā poloka.pahu.Ua hana ʻo Cao Mingqian a me nā mea ʻē aʻe i mea hoʻonani ʻili o ka hale mai ka methyl cellulose.He maʻalahi a maʻemaʻe ka hana hana.Hiki ke hoʻohana ʻia no ka pā kiʻekiʻe kiʻekiʻe a me nā papa tile pōhaku, a hiki ke hoʻohana ʻia no ka hoʻonani ʻana o nā kolamu a me nā monuments.
(3) ʻOihana kemika i kēlā me kēia lā
ʻO ka stabilizing viscosifier sodium carboxymethyl cellulose ka hana o ka hoʻopuehu a me ka hoʻopaʻa ʻana i ka hoʻopaʻa ʻana i nā huahana paʻi o ka pauka paʻa paʻa, a hoʻokani i ka hana o ka mānoanoa, hoʻopuehu a homogenizing i ka wai a i ʻole emulsion cosmetics.Hiki ke hoʻohana ʻia e like me ka stabilizer a me ka tackifier.Hoʻohana ʻia nā emulsion stabilizers e like me nā emulsifiers, thickeners a me nā stabilizers no ka ʻaila a me nā shampoos.ʻO ka sodium carboxymethyl hydroxypropyl cellulosehiki ke hoʻohana ʻia ma ke ʻano he stabilizer no nā toothpaste adhesives.Loaʻa iā ia nā waiwai thixotropic maikaʻi, kahi e hoʻomaikaʻi ai i ka toothpaste i ka formability, mālama lōʻihi me ka ʻole deformation, a me ka ʻono a me ka ʻono.ʻO ka sodium carboxymethyl hydroxypropyl cellulose ka paʻakai ʻoi aku ka paʻakai a me ke kūpaʻa waikawa, a ʻoi aku ka maikaʻi o kona hopena ma mua o ka carboxymethyl cellulose.Hiki ke hoʻohana ʻia ma ke ʻano he mānoanoa i nā detergents a me kahi mea anti-stain agent.Hoʻohana pinepine ʻia ka sodium carboxymethylcellulose ma ke ʻano he dispersant lepo no ka holoi ʻana i ka pauka, kahi mānoanoa a me kahi dispersant no nā mea holoi wai.
(4) Lapaʻau a me ka ʻoihana meaʻai
I loko o ka ʻoihana lāʻau lapaʻau, hiki ke hoʻohana ʻia ka hydroxypropyl carboxymethylcellulose (HPMC) ma ke ʻano he lāʻau lapaʻau, hoʻohana nui ʻia i ka hoʻokuʻu ʻana i ka matrix o ka lāʻau lapaʻau a me ka hoʻomākaukau hoʻokuʻu mau ʻana, ma ke ʻano he mea hoʻokuʻu e hoʻoponopono i ka hoʻokuʻu ʻana o nā lāʻau lapaʻau, ma ke ʻano he mea uhi e hoʻolōʻihi i ka hoʻokuʻu. nā mea hana, nā pellets hoʻokuʻu lōʻihi, nā capsules hoʻokuʻu lōʻihi.ʻO ka methyl carboxymethyl cellulose a me ka ethyl carboxymethyl cellulose ka mea i hoʻohana nui ʻia, e like me MC, i hoʻohana pinepine ʻia no ka hana ʻana i nā papa a me nā capsules, a i ʻole e uhi i nā papa i uhi ʻia i ke kō.Hiki ke hoʻohana ʻia nā eter cellulose premium ma ka ʻoihana meaʻai, a he mau mānoanoa kūpono, stabilizers, excipients, nā mea hoʻopaʻa wai a me nā mea hoʻohua mechanical i nā meaʻai like ʻole.Ua ʻike ʻia ʻo Methyl cellulose a me hydroxypropyl methyl cellulose ma ke ʻano he mau mea inert metabolic physiologically harmlessly.Hiki ke hoʻohui ʻia ka carboxymethylcellulose (CMC) kiʻekiʻe (ma luna o 99.5%) i ka meaʻai, e like me ka waiū a me nā huahana cream, condiments, jams, jelly, canned food, table syrup a me nā mea inu.Hiki ke hoʻohana ʻia ʻo Carboxymethyl cellulose me kahi maʻemaʻe ma mua o 90% i nā mea pili i ka meaʻai, e like me ka lawe ʻana a me ka mālama ʻana i nā huaʻai hou.Loaʻa i kēia ʻano ʻili palaki nā mea maikaʻi o ka hopena mālama hou, emi ka pollution, ʻaʻohe pōʻino, a me ka hana mechanized maʻalahi.
(5) Optical a me nā mea hana uila
Electrolyte thickening stabilizer he kiʻekiʻe maʻemaʻe o cellulose etera, maikaʻi kaʻakika kū'ē a me ka paʻakai kū'ē, o ka haʻahaʻa haʻahaʻa hao a me ke kaumaha metala maʻiʻo, no laila, ka colloid mea paa loa, kūpono no ka alkaline pāʻani, zinc-manganese pākuʻi Electrolyte thickening stabilizer.He nui nā cellulose ethers e hōʻike ana i ka crystallinity wai thermotropic.Hoʻokumu ka Hydroxypropyl cellulose acetate i nā kristal wai cholesteric thermotropic ma lalo o 164 ° C.
Ka manawa hoʻouna: Jan-12-2023