Nā hiʻohiʻona, hoʻomākaukau a hoʻohana ʻana i ka cellulose ether i ka ʻoihana

Ua loiloi ʻia nā ʻano, nā ʻano hoʻomākaukau, nā waiwai a me nā ʻano o ka cellulose ether, a me nā noi o cellulose ether i ka ʻaila, ka hana, ka hana pepa, ka lole, ka lāʻau lapaʻau, ka meaʻai, nā mea photoelectric a me nā ʻoihana kemika i kēlā me kēia lā. Ua hoʻolauna ʻia kekahi mau ʻano hou o ka cellulose ether derivatives me nā manaʻo hoʻomohala a ua hoʻomaka ʻia kā lākou noi noi.

Hua'ōlelo nui:cellulose etera; Hana; Noi; Nā mea i loaʻa mai i ka cellulose

ʻO ka Cellulose kahi ʻano o ka hui polymer maoli. ʻO kona ʻano kemika he macromolecule polysaccharide me ka β-glucose anhydrous ma ke apo kumu, me hoʻokahi pūʻulu hydroxyl mua a me ʻelua pūʻulu hydroxyl lua ma kēlā me kēia apo kumu. Ma ka hoʻololi kemika, hiki ke loaʻa i kahi ʻano o nā derivatives cellulose, cellulose ether kekahi o lākou. Loaʻa ka cellulose etera ma ka hopena o cellulose a me NaOH, a laila etherize me nā monomers hana like me ka methane chloride, ethylene oxide, propylene oxide, a me nā mea ʻē aʻe, ma ka holoi ʻana i ka paʻakai huahana a me ka sodium cellulose. ʻO ka cellulose ether kahi waiwai nui o ka cellulose, hiki ke hoʻohana nui ʻia i ka lāʻau lapaʻau a me ke olakino, kemika o kēlā me kēia lā, pepa, meaʻai, lāʻau lapaʻau, kūkulu, nā mea a me nā ʻoihana ʻē aʻe. No laila, ʻo ka hoʻomohala ʻana a me ka hoʻohana ʻana i ka cellulose ether he mea koʻikoʻi koʻikoʻi no ka hoʻohana piha ʻana i nā kumuwaiwai biomass hou, ka hoʻomohala ʻana i nā mea hou a me nā ʻenehana hou.

1. Hoʻokaʻawale a hoʻomākaukau i ka cellulose ether

Hoʻokaʻawale ʻia ka hoʻokaʻawale ʻana o cellulose ethers i ʻehā mau ʻāpana e like me kā lākou mau waiwai ionic.

1.1 Nonionic cellulose ether

ʻO ka non-ionic cellulose ether ka nui o ka cellulose alkyl ether, ke ʻano o ka hoʻomākaukau ʻana ma ka cellulose a me ka hopena NaOH, a laila me nā ʻano monomers hana like me ka methane chloride, ethylene oxide, propylene oxide etherification reaction, a laila ma ka holoi ʻana i ka huahana. ka paʻakai a me ka sodium cellulose e loaʻa. ʻO ka methyl cellulose ether, methyl hydroxyethyl cellulose ether, methyl hydroxypropyl cellulose ether, hydroxyethyl cellulose ether, cyanoethyl cellulose ether, hydroxybutyl cellulose ether. He ākea loa kona noi.

1.2 Anionic cellulose etera

ʻO ka Anionic cellulose ether ka nui o ka sodium carboxymethyl cellulose, ka sodium carboxymethyl hydroxyethyl cellulose. ʻO ke ʻano o ka hoʻomākaukau ʻana ma ka hopena o cellulose a me NaOH, a laila etherify me ka monochloroacetic acid a i ʻole ethylene oxide, propylene oxide, a laila holoi i ka paʻakai a me ka sodium cellulose e loaʻa.

1.3 cationic cellulose etera

ʻO ka cationic cellulose ether ka nui o 3 - chlorine - 2 - hydroxypropyl trimethyl ammonium chloride cellulose ether. ʻO ke ʻano o ka hoʻomākaukau ʻana ma ka hopena o cellulose a me NaOH, a laila ka cationic etherifying agent 3 - chlorine - 2 - hydroxypropyl trimethyl ammonium chloride a i ʻole ethylene oxide, propylene oxide me ka etherifying reaction, a laila holoi i ka paʻakai a me ka sodium. cellulose e loaa.

1.4 Zwitterionic cellulose etera

ʻO Zwitterionic cellulose ether nā pūʻulu anionic a me nā pūʻulu cationic ma ke kaulahao mole, ʻo ke ʻano hoʻomākaukau ma ka cellulose a me ka hopena NaOH, a laila me ka chloroacetic acid a me ka cationic etherifying agent 3 - chlorine - 2 hydroxypropyl trimethyl ammonium chloride etherification reaction, a laila holoi ʻia. e ka paʻakai a me ka sodium cellulose a loaʻa.

2. nā waiwai a me nā ʻano o ka cellulose ether

2.1 Nā hiʻohiʻona hiʻohiʻona

ʻO ka cellulose ether ka maʻamau keʻokeʻo a i ʻole ka waiū keʻokeʻo, ʻono ʻole, ʻaʻohe mea ʻawaʻawa, me ka wai o ka pauka fibrous, maʻalahi ke komo i ka makū, hoʻoheheʻe ʻia i loko o ka wai i loko o kahi colloid paʻa viscous.

2.2 Hoʻokumu kiʻiʻoniʻoni a pili

He mana nui ka etherification o ka cellulose ether i kona mau waiwai, e like me ka solubility, ka hiki ke hana kiʻiʻoniʻoni, ka ikaika paʻa a me ka hoʻomanawanui paʻakai. ʻO ka cellulose ether ka ikaika mechanical kiʻekiʻe, ka maʻalahi, ka pale wela a me ke kū'ē anu, a he kūpono maikaʻi me nāʻano resins a me nā plasticizers, hiki ke hoʻohanaʻia no ka hanaʻana i nā plastics, nā kiʻiʻoniʻoni, nā varnishes, nā mea hoʻopili, ka latex a me nā mea hoʻopili lāʻau.

2.3 Solubility

Hiki ke hoʻoheheʻe ʻia ka Methyl cellulose i ka wai anuanu, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai wela, akā hiki ke hoʻoheheʻe ʻia i kekahi mau mea hoʻoheheʻe organik; Methyl hydroxyethyl cellulose hiki ke hoʻoheheʻe ʻia i ka wai anuanu, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai wela a me nā mea hoʻoheheʻe organik. Akā, i ka wā e wela ai ka wai wai o ka methyl cellulose a me ka methyl hydroxyethyl cellulose, e kahe ka methyl cellulose a me ka methyl hydroxyethyl cellulose. Methyl cellulose precipitated ma 45 ~ 60 ℃, oiai etherized etherized methyl hydroxyethyl cellulose precipitated ma 65 ~ 80 ℃. Ke hāʻule ka mahana, hoʻoheheʻe hou nā ea.

Hiki ke hoʻoheheʻe ʻia ka sodium hydroxyethyl cellulose a me carboxymethyl hydroxyethyl cellulose i ka wai i kēlā me kēia mahana, akā hiki ʻole ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik (me kekahi mau ʻokoʻa).

2.4 Mānoanoa

Hoʻoheheʻe ʻia ka cellulose ether i loko o ka wai ma ke ʻano colloidal, a hilinaʻi kona viscosity i ke ʻano o ka polymerization o cellulose ether. Aia ka hopena i nā macromolecules o ka hydration. Ma muli o ka hoʻopili ʻia ʻana o nā macromolecules, ʻokoʻa ka ʻano kahe o ka hoʻonā me ko nā wai Newtonian, akā hōʻike i kahi ʻano like ʻole me ka hoʻololi ʻana o nā ikaika shear. Ma muli o ke ʻano macromolecular o cellulose ether, piʻi wikiwiki ka viscosity o ka hoʻonā me ka hoʻonui ʻana i ka ʻike a emi koke me ka piʻi ʻana o ka mahana.

2.5 Hoʻohaʻahaʻa

Hoʻohana ʻia ka cellulose ether i ka pae wai. I ka wā e loaʻa ai ka wai, e ulu ka bacteria. ʻO ka ulu ʻana o ka bacteria e alakaʻi i ka hana ʻana o ka bacteria enzyme. Ua hana ka bacteria enzyme i ka hoʻopaʻa ʻāpana glucose dehydrated i hoʻololi ʻole ʻia e pili ana i ka haʻihaʻi cellulose ether a ua emi ke kaumaha molekala o ka polymer. No laila, inā e mālama ʻia kahi hopena wai o ka cellulose ether no ka manawa lōʻihi, pono e hoʻohui ʻia i kahi mea mālama, ʻoiai inā hoʻohana ʻia ka cellulose ether antibacterial.

3.ka noi o ka cellulose ether ma ka ʻoihana

3.1 ʻOihana ʻAila

Hoʻohana nui ʻia ka sodium carboxymethyl cellulose i ka hoʻohana ʻana i ka ʻaila. Hoʻohana ʻia ia 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 aku i nā ʻino paʻakai hiki ke hoʻoheheʻe ʻia a hoʻomaikaʻi i ka helu hoʻihoʻi ʻaila.

ʻO ka sodium carboxymethyl hydroxypropyl cellulose a me ka sodium carboxymethyl hydroxyethyl cellulose kahi ʻano ʻoi aku ka maikaʻi o ka hoʻomaʻamaʻa ʻana i ka lepo lepo a me ka hoʻomākaukau ʻana i nā mea wai hoʻopihapiha, kiʻekiʻe pulping kiʻekiʻe, paʻakai paʻakai, kūpaʻa calcium, hiki i ka viscosification maikaʻi, ke kūpaʻa wela (160 ℃). He mea kūpono no ka hoʻomākaukau ʻana i ka wai hou, ka wai kai a me ka wai paʻakai wai hoʻoheheʻe wai, ma lalo o ke kaumaha o ka calcium chloride hiki ke hoʻohui ʻia i loko o nā ʻano like ʻole (103 ~ 1279 / cm3) wai hoʻoheheʻe, a hana ia i kahi viscosity a me ka kānana haʻahaʻa. ʻoi aku ka maikaʻi o kona viscosity a me kāna kānana ma mua o ka hydroxyethyl cellulose, he mea hoʻohui aila maikaʻi. Hoʻohana nui ʻia ʻo Sodium carboxymethyl cellulose i ke kaʻina o ka hoʻohana ʻana i ka ʻaila o ka cellulose derivatives, i ka wai drilling, cementing fluid, fracturing fluid a me ka hoʻomaikaʻi ʻana i ka hana ʻaila i hoʻohana ʻia, ʻoi aku ka nui o ka hoʻohana ʻana i ka wai wili, ʻoi aku ka nui o ka lawe ʻana a me ka pae ʻana a me ka viscosification.

Hoʻohana ʻia ʻo Hydroxyethyl cellulose i ke kaʻina o ka ʻeli ʻana, hoʻopau ʻana a me ka hoʻopaʻa ʻana ma ke ʻano he stabilizer mānoanoa lepo. Ma muli o ka hydroxyethyl cellulose a me ka sodium carboxymethyl cellulose, guar gum i hoʻohālikelike ʻia me ka hopena mānoanoa maikaʻi, ke one hoʻokuʻu, ka paʻakai kiʻekiʻe o ka paʻakai, ke kūpaʻa wela maikaʻi, a me ke kūʻē liʻiliʻi, ka liʻiliʻi o ka wai, ka haki ʻana i ka pahu pahu, nā ʻano haʻahaʻa haʻahaʻa, ua hoʻohana nui ʻia.

3.2 ʻOihana hana a me ka uhi ʻana

ʻO ka hale kūkulu hale a me ka plastering mortar admixture: hiki ke hoʻohana ʻia ka sodium carboxymethyl cellulose e like me ka retarding agent, ka mea mālama wai, ka mānoanoa a me ka mea hoʻopili, hiki ke hoʻohana ʻia e like me ka gypsum lalo a me ka sima lalo plaster, mortar a me ka lepo pae honua dispersant, ka mea mālama wai, thickener. He ʻano ia o ka masonry kūikawā a me ka plastering mortar admixture no ka aerated concrete blocks i hana ʻia me ka carboxymethyl cellulose, hiki ke hoʻomaikaʻi i ka hana, ka paʻa ʻana o ka wai a me ka pale ʻana o ka mortar a pale aku i ka haki ʻana a me ka hakahaka o ka pā pā.

ʻO nā mea hoʻonani hale kūkulu hale: ʻO Cao Mingqian a me nā methyl cellulose i hana ʻia i ke ʻano o ka mālama ʻana i ke kaiapuni i nā mea hoʻonaninani hale, maʻalahi kāna kaʻina hana, maʻemaʻe, hiki ke hoʻohana ʻia no ka pā kiʻekiʻe, ka ʻili pōhaku, hiki ke hoʻohana ʻia no ke kolamu. , hoʻohiwahiwa ili papa. ʻO Huang Jianping i hana ʻia me ka carboxymethyl cellulose kahi ʻano sealant tile ceramic, nona ka ikaika hoʻopaʻa paʻa, hiki ke hoʻololi maikaʻi, ʻaʻole hana i nā māwae a hāʻule, ka hopena wai maikaʻi, ʻulaʻula a me ka waihoʻoluʻu, me ka hopena hoʻonaninani maikaʻi.

No ka hoʻohana ʻana i ka uhi: Methyl cellulose a me hydroxyethyl cellulose hiki ke hoʻohana ʻia e like me ka stabilizer, thickener a me ka mea mālama wai no ka latex coatings, ma kahi ʻē aʻe, hiki ke hoʻohana ʻia e like me ka dispersant, viscosifier a me ka mea hana kiʻiʻoniʻoni no nā uhi sima kala. ʻO ka hoʻohui ʻana i ka cellulose ether me nā kikoʻī kūpono a me ka viscosity i ka pena latex hiki ke hoʻomaikaʻi i ka hana hana o ka pena latex, pale i ka spatter, hoʻomaikaʻi i ka paʻa o ka mālama ʻana a uhi i ka mana. ʻO ka māla mea kūʻai nui ma waho o ka latex coatings, no laila, lilo pinepine nā huahana cellulose ether i koho mua o ka mānoanoa pena latex. No ka laʻana, hiki i ka methyl hydroxyethyl cellulose ether i hoʻololi ʻia ke hoʻomau i ke kūlana alakaʻi i ka mānoanoa o ka pena latex ma muli o kāna mau waiwai piha. No ka laʻana, no ka cellulose ether loaʻa nā ʻano gel thermal kūikawā a me ka solubility, ka paʻakai paʻakai, ka wela wela, a loaʻa iā ia ka hana ʻili kūpono, hiki ke hoʻohana ʻia ma ke ʻano he mea mālama wai, mea hoʻokuʻu, emulsifier, mea hana kiʻiʻoniʻoni, lubricant, binder a me rheological hoʻololi. .

3.3 ʻOihana Pepa

ʻO nā mea hoʻohui pepa: hiki ke hoʻohana ʻia ka CMC ma ke ʻano he fiber dispersant a me ka hoʻonui ʻana i ka pepa, hiki ke hoʻohui ʻia i ka pulp, no ka mea, ʻo ka sodium carboxymethyl cellulose a me ka pulp a me ka hoʻopili ʻana i nā ʻāpana like ka uku, hiki ke hoʻonui i ke kaulike o ka fiber, hoʻomaikaʻi i ka ikaika o ka. pepa. E like me ka mea hoʻoikaika i hoʻohui ʻia i loko o ka pepa, hoʻonui ia i ka pilina paʻa ma waena o nā fibers, a hiki ke hoʻomaikaʻi i ka ikaika tensile, ka haki ʻana i ka pale, ka like ʻana o ka pepa a me nā ʻōlelo kuhikuhi kino ʻē aʻe. Hiki ke hoʻohana ʻia ʻo Sodium carboxymethyl cellulose ma ke ʻano he mea nui i ka pulp. Ma waho aʻe o kona degere sizing ponoʻī, hiki ke hoʻohana ʻia ma ke ʻano he mea pale o ka rosin, AKD a me nā mea ʻē aʻe. Hiki ke hoʻohana ʻia ka Cationic cellulose ether ma ke ʻano he kānana kōkua paʻa pepa, hoʻomaikaʻi i ka pae paʻa o ka fiber maikaʻi a me ka filler, hiki ke hoʻohana ʻia e like me ka hoʻoikaika ʻana i ka pepa.

Hoʻopili paʻa: Hoʻohana ʻia no ka hoʻopili ʻana i ka hoʻopili ʻana i ka paʻi pepa, hiki ke hoʻololi i ka paʻakai, kahi ʻāpana o ka latex, i maʻalahi ke komo ʻana i ka ʻīnika paʻi, ka ʻaoʻao māmā. Hiki ke hoʻohana ʻia e like me ka dispersant pigment, viscosifier a me stabilizer.

Mea hoʻohana i ka ʻili: Hiki ke hoʻohana ʻia ka sodium carboxymethyl cellulose ma ke ʻano he mea hoʻonui i ka ʻili o ka pepa, hoʻomaikaʻi i ka ikaika o ka ʻili o ka pepa, ke hoʻohālikelike ʻia me ka hoʻohana ʻana i ka waiʻona polyvinyl i kēia manawa, ka starch i hoʻololi ʻia ma hope o ka hoʻonui ʻia ʻana o ka ikaika ma kahi o 10%, hoʻemi ʻia ka dosage. ma kahi o 30%. ʻO ia kahi mea hoʻolaha nui o ka ʻili no ka hana pepa, a pono e hoʻomohala ikaika ʻia kāna mau ʻano ʻano hou. ʻOi aku ka maikaʻi o ka cationic cellulose ether ma mua o ka cationic starch, ʻaʻole hiki ke hoʻomaikaʻi wale i ka ikaika o ka pepa, akā hiki ke hoʻomaikaʻi i ka absorption ink o ka pepa, hoʻonui i ka hopena dyeing, ʻo ia hoʻi kahi mea hoʻohiki nui.

3.4 Hana lole lole

I ka ʻoihana textile, hiki ke hoʻohana ʻia ka cellulose ether e like me ka sizing agent, leveling agent a me ka thickening agent no ka textile pulp.

Sizing agent: cellulose ether e like me ka sodium carboxymethyl cellulose, hydroxyethyl carboxymethyl cellulose ether, hydroxypropyl carboxymethyl cellulose ether a me nā ʻano ʻano ʻē aʻe hiki ke hoʻohana ʻia e like me ka sizing agent, a ʻaʻole maʻalahi e hoʻopōʻino a hoʻoheheʻe ʻia, paʻi a me ke kala ʻana, me ka ʻole o ka manaʻo, hiki ke hoʻoikaika i ka ʻaʻahu. colloid i ka wai.

Mea hoʻonanea: hiki ke hoʻonui i ka mana hydrophilic a me ka osmotic o ka wai, no ka mea liʻiliʻi ka loli viscosity, maʻalahi e hoʻoponopono i ka ʻokoʻa kala; Loaʻa ka cationic cellulose ether i ke kala a me ka hopena kala.

ʻAno mānoanoa: sodium carboxymethyl cellulose, hydroxyethyl carboxymethyl cellulose ether, hydroxypropyl carboxymethyl cellulose ether hiki ke hoʻohana ʻia e like me ka paʻi ʻana a me ka dyeing slurry thickening agent, me ke koena liʻiliʻi, nā hiʻohiʻona kala kiʻekiʻe, he papa o nā mea hoʻohui textile loa.

3.5 ʻOihana kemika hale

Paʻa viscosifier: ʻO ka sodium methylcellulose i loko o ka pauka paʻa maka mea hoʻopili i nā huahana pāʻani i ka paʻa ʻana o ka dispersion suspension, i ka wai a i ʻole emulsion cosmetics thickening, dispersing, homogenizing a me nā kuleana ʻē aʻe. Hiki ke hoʻohana ʻia e like me ka stabilizer a me ka viscosifier.

Emulsifying stabilizer: hana aila, shampoo emulsifier, mānoanoa a me stabilizer. Hiki ke hoʻohana ʻia ka sodium carboxymethyl hydroxypropyl cellulose ma ke ʻano he toothpaste adhesive stabilizer, me nā waiwai thixotropic maikaʻi, i loaʻa i ka toothpaste ka formability maikaʻi, deformation lōʻihi, ʻaʻahu a me ka ʻono maikaʻi. ʻO ka sodium carboxymethyl hydroxypropyl cellulose paʻakai paʻakai, ʻoi aku ka maikaʻi o ka pale ʻana i ka waikawa, ʻoi aku ka maikaʻi o ka hopena ma mua o ka carboxymethyl cellulose, hiki ke hoʻohana ʻia e like me ka detergent i ka viscosifier, ka mea pale pale lepo.

Hoʻopuehu mānoanoa: I ka hana detergent, ka hoʻohana maʻamau o ka sodium carboxymethyl cellulose e like me ka detergent detergent lepo dispersant, wai mānoanoa wai a me ka dispersant.

3.6 ʻOihana lāʻau lapaʻau a me nā meaʻai

I ka ʻoihana lāʻau lapaʻau, hiki ke hoʻohana ʻia ka hydroxypropyl carboxymethyl cellulose e like me nā excipients i ka lāʻau lapaʻau, hoʻohana nui ʻia i ka hoʻokuʻu ʻana i ka iwi o ka lāʻau lapaʻau a me ka hoʻomākaukau hoʻokuʻu mau ʻana, ma ke ʻano he mea hoʻokuʻu i mea e hoʻoponopono ai i ka hoʻokuʻu ʻana o nā lāʻau lapaʻau, e like me ka mea uhi mea hoʻokuʻu i hoʻokuʻu ʻia, hoʻokuʻu mau pellets. , hoʻokuʻu mau capsules. ʻO ka mea i hoʻohana nui ʻia ʻo methyl carboxymethyl cellulose, ethyl carboxymethyl cellulose, e like me MC i hoʻohana pinepine ʻia i ka hana ʻana i nā papa a me nā capsules, a i ʻole nā ​​​​papa i uhi ʻia i ke kō.

Hiki ke hoʻohana ʻia ka pae maikaʻi o ka cellulose ether i ka ʻoihana meaʻai, i nā ʻano meaʻai he mea hoʻomaʻamaʻa maikaʻi, emulsifier, stabilizer, excipient, wai hoʻopaʻa wai a me mechanical foaming agent. Ua ʻike ʻia ʻo Methyl cellulose a me hydroxypropyl methyl cellulose ma ke ʻano he mea ʻino ʻole ka metabolic inert. Hiki ke hoʻohui ʻia ka carboxymethyl cellulose ka maʻemaʻe kiʻekiʻe (99.5% a i ʻole ka maʻemaʻe) i nā meaʻai, e like me ka waiū a me nā huahana cream, condiments, jams, jelly, cans, table syrups a me nā mea inu. Hiki ke hoʻohana ʻia ka maʻemaʻe ma mua o 90% carboxymethyl cellulose i nā mea e pili ana i ka meaʻai, e like me ka hoʻopili ʻana i ka lawe ʻana a me ka mālama ʻana i nā huaʻai hou, ʻoi aku ka maikaʻi o ka mālama ʻana i ka plastic wrap, ka liʻiliʻi o ka pollution, ʻaʻohe pōʻino, maʻalahi i nā pono hana mechanized.

3.7 ʻO nā mea hana ʻenehana a me ka uila

Electrolyte thickening stabilizer: ma muli o ke kiʻekiʻe maʻemaʻe o ka cellulose etera, maikaʻi ka waikawa kū'ē, paʻakai kū'ē, oi loa aku ka hao a me ke kaumaha metala maʻiʻo mea haʻahaʻa, no laila, ka colloid paa loa, kūpono no ka alkaline pākaukau, zinc manganese pākahi electrolyte thickening stabilizer.

ʻO nā mea wai aniani wai: Mai ka makahiki 1976, ʻo ka ʻike mua ʻana o ka hydroxypropyl cellulose - ka ʻōnaehana wai wai aniani noiʻi ʻāpana, ua loaʻa i loko o ka hopena kūlohelohe kūpono, nui nā cellulose derivatives i ke kiʻekiʻe kiʻekiʻe hiki ke hana i ka hopena anisotropic, no ka laʻana, hydroxypropyl cellulose a me kāna acetate, propionate. , benzoate, phthalate, acetyxyethyl cellulose, hydroxyethyl cellulose, etc. Ma waho aʻe o ka hana ʻana i ka colloidal ionic liquid crystal solution, hōʻike pū kekahi mau esters o ka hydroxypropyl cellulose i kēia waiwai.

He nui nā cellulose ethers e hōʻike ana i nā waiwai kristal wai thermotropic. Hoʻokumu ʻia ʻo Acetyl hydroxypropyl cellulose i ka thermogenic cholesteric liquid crystal ma lalo o 164 ℃. ʻO Acetoacetate hydroxypropyl cellulose, trifluoroacetate hydroxypropyl cellulose, hydroxypropyl cellulose a me kāna mau mea i loaʻa, ethyl hydroxypropyl cellulose, trimethylsiliccellulose a me butyldimethylsiliccellulose, heptyl cellulose a me butoxylethyl cellulose, allethyl hydroxypropyl cellulose, hydroxylethyl cellulose. ʻO kekahi esters cellulose e like me cellulose benzoate, p-methoxybenzoate a me p-methylbenzoate, hiki i ka cellulose heptanate ke hana i nā kristal wai cholesteric thermogenic.

Mea hoʻoheheʻe uila: cyanoethyl cellulose etherifying agent no ka acrylonitrile, kona kiʻekiʻe dielectric mau, haʻahaʻa poho coefficient, hiki ke hoʻohana ʻia e like me ka phosphorus a me nā kukui electroluminescent resin matrix a me ka mea hoʻololi hoʻololi.

4. Olelo Hoopau

ʻO ka hoʻohana ʻana i ka hoʻololi kemika no ka loaʻa ʻana o nā derivatives cellulose me nā hana kūikawā he ala kūpono e ʻimi ai i nā hoʻohana hou no cellulose, ka mea kūlohelohe kūlohelohe nui loa ma ka honua. E like me kekahi o ka cellulose derivatives, cellulose ether e like me ka physiological harmless, pollution-free wai-soluble material polymer ma muli o kona mau waiwai maikaʻi, ua hoʻohana ʻia i loko o nā ʻoihana he nui, a e loaʻa iā ia kahi manaʻo ākea no ka hoʻomohala ʻana.