Focus on Cellulose ethers

Kodi cellulose ether ndi chiyani?

Cellulose etherndizowonjezera komanso zogwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikiza zomangamanga, zamankhwala, chisamaliro chamunthu, chakudya, ndi zina zambiri. Amachokera ku cellulose, polima yachilengedwe yomwe imapezeka m'makoma a cell a zomera. Ma cellulose ether amapangidwa ndikusintha molekyulu ya cellulose kudzera pamachitidwe amankhwala, zomwe zimapangitsa kuti zinthu zizikhala bwino komanso magwiridwe antchito omwe amawapangitsa kukhala oyenera kugwiritsidwa ntchito mosiyanasiyana.

Gwero lalikulu la cellulose popanga malonda a cellulose ether ndi zamkati zamatabwa, ngakhale magwero ena opangira mbewu monga thonje ndi zinthu zina zaulimi zitha kugwiritsidwanso ntchito. Ma cellulose amapatsidwa mankhwala osiyanasiyana, kuphatikizapo kuyeretsedwa, alkalization, etherification, ndi kuyanika, kuti apange mankhwala omaliza a cellulose ether.

Cellulose ether imapereka zinthu zingapo zofunika zomwe zimapangitsa kuti zikhale zofunikira pamagwiritsidwe osiyanasiyana:

1.Kusungunuka kwamadzi:Ma cellulose ether nthawi zambiri amasungunuka m'madzi, zomwe zimapangitsa kuti azimwazikana ndikuphatikizidwa m'mapangidwe osiyanasiyana. Zimapanga njira zomveka bwino komanso zokhazikika m'madzi, zomwe zimapereka kukhuthala kwambiri komanso kukhazikika.
2. Kusintha kwa Rheology:Chimodzi mwazabwino kwambiri za cellulose ether ndikutha kusintha machitidwe otaya komanso kukhuthala kwa zakumwa. Zitha kukhala ngati thickening wothandizira, kupereka kusasinthasintha, kapangidwe, ndi kukhazikika kwa zinthu. Mwa kusintha mtundu ndi mlingo wa cellulose ether, ndizotheka kukwaniritsa ma viscosities osiyanasiyana, kuchokera kumadzi otsika kwambiri mpaka ma gels owoneka bwino.
3.Kupanga Mafilimu:Ma cellulose ether amatha kupanga mafilimu pamene yankho lawuma. Mafilimuwa ndi owonekera, osinthika, ndipo ali ndi mphamvu zokhazikika. Atha kugwiritsidwa ntchito ngati zokutira zoteteza, zomangira, kapena matrices m'njira zosiyanasiyana.
4.Kusunga Madzi:Ma cellulose ether ali ndi zabwino zosunga madzi. Pazomangamanga, zitha kugwiritsidwa ntchito pazinthu zopangidwa ndi simenti kuti zithandizire kugwira ntchito, kuchepetsa kutayika kwa madzi, komanso kukonza kayendedwe ka madzi. Izi zimabweretsa kukulitsa kwamphamvu kwamphamvu, kutsika kwapang'onopang'ono, komanso kukhazikika kwa konkriti komaliza kapena matope.
5.Kumamatira ndi Kumanga:Ma cellulose ether amawonetsa zomatira, zomwe zimapangitsa kuti zikhale zothandiza ngati zomangira pazinthu zosiyanasiyana. Itha kulimbikitsa kumamatira pakati pa zinthu zosiyanasiyana kapena kukhala ngati chomangira m'mapiritsi, ma granules, kapena mapangidwe a ufa.
6.Chemical Kukhazikika:Ma cellulose ether amalimbana ndi hydrolysis pansi pazikhalidwe zabwinobwino, kupereka bata ndi magwiridwe antchito pamitundu yambiri ya pH. Izi zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito m'malo a acidic, alkaline, kapena osalowerera ndale.
7. Kukhazikika kwa Thermal:Ma cellulose ether amawonetsa kukhazikika kwamafuta abwino, kulola kuti asunge katundu wake pamitundu yosiyanasiyana ya kutentha. Izi zimapangitsa kuti zikhale zoyenera kwa mapulogalamu omwe amaphatikizapo kutentha kapena kuzizira.

Mtundu wotchuka wa Cellulose ether

Cellulose ether imapezeka m'makalasi osiyanasiyana, iliyonse ili ndi makhalidwe ake enieni ndi makhalidwe ake.Makalasi omwe amagwiritsidwa ntchito kwambiri pa cellulose ether ndi Hydroxypropyl Methylcellulose (HPMC), Methyl Hydroxyethylcellulose (MHEC), Hydroxyethylcellulose (HEC), Carboxymethylcellulose (CMC), Ethyl Hydroxyethylcellulose Ethylcellulose (EC), ndi methylcellulose (MC). Tiyeni tifufuze giredi iliyonse mwatsatanetsatane:

1.Hydroxypropyl Methylcellulose (HPMC):

HPMC ndi imodzi mwama cellulose ether omwe amagwiritsidwa ntchito kwambiri. Amachokera ku cellulose kudzera mukusintha kwamankhwala ndi propylene oxide ndi methyl chloride. HPMC imadziwika chifukwa cha kusunga madzi, kukhuthala, komanso kupanga mafilimu. Imapereka magwiridwe antchito abwino kwambiri, kumamatira bwino, komanso kutsegulira nthawi yayitali pantchito zomanga monga matope owuma, zomatira matailosi, ndi masinthidwe a simenti. M'makampani opanga mankhwala, HPMC imagwiritsidwa ntchito ngati chophatikizira, chopangira filimu, komanso chowongolera-chotulutsa m'mapangidwe a mapiritsi.
2.Methyl Hydroxyethylcellulose (MHEC):

MHEC ndi kalasi ya cellulose ether yomwe imapangidwa pochita ma cellulose ndi methyl chloride ndi ethylene oxide. Imakhala ndi zinthu zofanana ndi HPMC koma yokhala ndi luso losunga madzi. Amagwiritsidwa ntchito kwambiri pomatira matailosi, ma grouts, ndi zida zopangira simenti komwe kumafunika kugwira ntchito bwino, kusunga madzi, ndi kumamatira. MHEC imapezanso ntchito mu makampani opanga mankhwala monga binder ndi mafilimu opanga mafilimu muzopanga mapiritsi.
3. Hydroxyethyl cellulose (HEC):

HEC imachokera ku cellulose kudzera pakuwonjezera magulu a ethylene oxide. Ndiwosungunuka m'madzi ndipo imapereka mphamvu zowongolera bwino komanso zowongolera ma rheology. HEC imagwiritsidwa ntchito kwambiri pazinthu zosamalira anthu, monga ma shampoos, zowongolera, ndi mafuta odzola, kuti apereke mamasukidwe akayendedwe, kukulitsa kukhazikika kwa thovu, ndikusintha mawonekedwe amalingaliro. Amagwiritsidwanso ntchito ngati thickener ndi binder mu utoto, zokutira, ndi zomatira.

4.Carboxymethylcellulose (CMC):

CMC imapangidwa pochita ma cellulose ndi sodium monochloroacetate kuti ayambitse magulu a carboxymethyl pa unyolo wa cellulose. CMC ndiyosungunuka kwambiri m'madzi ndipo imawonetsa kukhuthala, kukhazikika, komanso kupanga mafilimu. Amagwiritsidwa ntchito kwambiri m'makampani azakudya ngati chowonjezera, chokhazikika, komanso chotsitsa muzakudya zosiyanasiyana, kuphatikiza mkaka, makeke, sosi, ndi zakumwa. CMC imagwiritsidwanso ntchito muzamankhwala, chisamaliro chamunthu, ndi mafakitale a nsalu.

5.Ethyl Hydroxyethylcellulose (EHEC):

EHEC ndi mapadi etere kalasi kuti Chili katundu ethyl ndi hydroxyethyl m'malo. Imawonjezera kukhuthala, kuwongolera ma rheology, komanso kuthekera kosunga madzi. EHEC amagwiritsidwa ntchito mu zokutira madzi ofotokoza, zomatira, ndi zipangizo zomangamanga kusintha workability, sag kukana, ndi filimu mapangidwe.
6.Ethylcellulose (EC):

EC ndi non-ionic cellulose ether yomwe imagwiritsidwa ntchito makamaka m'mafakitale opanga mankhwala ndi zokutira. Sisungunuka m'madzi koma sungunuka mu zosungunulira za organic. EC imapereka mawonekedwe opangira mafilimu, ndikupangitsa kuti ikhale yoyenera machitidwe operekera mankhwala osokoneza bongo, zokutira za enteric, ndi zokutira zotchinga. Amagwiritsidwanso ntchito popanga inki zapadera, ma lacquers, ndi zomatira.
7.Methylcellulose (MC):

MC imachokera ku cellulose powonjezera magulu a methyl. Imasungunuka m'madzi ndipo imawonetsa mawonekedwe abwino kwambiri opangira mafilimu, kukhuthala, komanso kupanga emulsifying. MC imagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala monga binder, disintegrant, ndi viscosity modifier pamapangidwe amapiritsi. Imagwiritsidwanso ntchito m'makampani azakudya monga thickener, stabilizer, ndi emulsifier muzinthu zosiyanasiyana.
Makalasi a cellulose ether awa amapereka magwiridwe antchito osiyanasiyana ndipo amasankhidwa malinga ndi zofunikira za pulogalamu iliyonse. Ndikofunika kuzindikira kuti giredi iliyonse ikhoza kukhala ndi mawonekedwe osiyanasiyana ndi magwiridwe antchito, kuphatikiza kukhuthala, kulemera kwa maselo, mulingo wolowa m'malo, ndi kutentha kwa gel. Opanga amapereka zidziwitso zaukadaulo ndi malangizo othandizira posankha giredi yoyenera pakupanga kapena kugwiritsa ntchito.

makalasi a cellulose ether monga HPMC, MHEC, HEC, CMC, EHEC, EC, ndi MC ali ndi katundu wosiyanasiyana ndipo amagwiritsidwa ntchito m'mafakitale osiyanasiyana. Amapereka kusunga madzi, kukhuthala, kupanga mafilimu, kumamatira, komanso kulimbitsa mphamvu. Makalasi a cellulose ether awa amagwira ntchito yofunika kwambiri pakupanga zida zomangira, mankhwala, zinthu zosamalira anthu, chakudya, utoto ndi zokutira, zomatira, ndi zina zambiri, zomwe zimathandizira kuti magwiridwe antchito ndi magwiridwe antchito amitundu yambiri apangidwe ndi zinthu.

https://www.kimachemical.com/news/what-is-cellulose-ether/

Ma cellulose ether amapeza ntchito zambiri m'mafakitale osiyanasiyana:

1. Makampani Omangamanga: Pomanga, cellulose ether imagwiritsidwa ntchito ngati chowonjezera chofunikira mumatope owuma, zomatira za matailosi, ma grouts, masimenti a simenti, ndi zodzipangira zokha. Imawonjezera kugwira ntchito, kusunga madzi, kumamatira, komanso kulimba kwa zinthu izi. Kuphatikiza apo, ether ya cellulose imathandizira magwiridwe antchito a makina otsekemera akunja (ETICS) powonjezera kumamatira ndi kusinthasintha kwa matope omatira.

2.Pharmaceutical Industry: Cellulose ether imagwiritsidwa ntchito kwambiri popanga mankhwala. Imagwira ntchito ngati chomangira, chosokoneza, komanso chowongolera chotulutsa pamapangidwe a piritsi. Amapereka kulimba kwa piritsi, kusungunuka mwachangu, komanso kuwongolera kutulutsa kwamankhwala. Kuphatikiza apo, ether ya cellulose itha kugwiritsidwanso ntchito ngati kusinthira kukhuthala kwamadzimadzi, kuyimitsidwa, ndi emulsions.

3.Chisamaliro Chaumwini ndi Zodzoladzola: Muzinthu zothandizira anthu, cellulose ether amagwiritsidwa ntchito ngati thickening agent, stabilizer, ndi kupanga mafilimu. Amapereka mawonekedwe ofunikira komanso ma rheological ku zodzoladzola, mafuta odzola, ma gels, ma shampoos, ndi zina zopangira chisamaliro chamunthu. Cellulose ether imathandizira kukhazikika, kufalikira, komanso chidziwitso chonse chazinthu izi. Ikhozanso kupititsa patsogolo khalidwe la chithovu muzokonza zoyeretsa.

Makampani a 4.Food: Cellulose ether amagwiritsidwa ntchito m'makampani azakudya monga chowonjezera chowonjezera, emulsifier, stabilizer, ndi zakudya zowonjezera zakudya. Itha kusintha mawonekedwe, kamvekedwe ka mkamwa, ndi moyo wa alumali wazakudya. Cellulose ether amagwiritsidwa ntchito kwambiri muzovala za saladi, sosi, zophika buledi, zotsekemera zoziziritsa kukhosi, komanso zakudya zopanda mafuta kapena zopatsa mphamvu zochepa.

5.Paints ndi Zopaka: Ma cellulose ether amagwiritsidwa ntchito mu utoto ndi zokutira monga rheology modifier ndi thickening agent. Zimathandizira kuwongolera kukhuthala, kuyenda, ndi kusanja kwa zokutira. Ma cellulose ether amathandiziranso kukhazikika ndi kubalalitsidwa kwa inki ndi zodzaza mu utoto.

6.Zomatira ndi Zisindikizo: Ma cellulose ether amapeza ntchito mu zomatira ndi zosindikizira kuti awonjezere kukhuthala kwawo, kumamatira, ndi kusinthasintha. Imawongolera magwiridwe antchito komanso kukhazikika kwa ma formulations, kupangitsa kulumikizana koyenera kwa zinthu zosiyanasiyana.

7.Mafakitale a Mafuta ndi Gasi: Ma cellulose ether amagwiritsidwa ntchito pobowola madzi ndikumaliza mumsika wamafuta ndi gasi. Amapereka kuwongolera kwamakayendedwe, kuchepetsa kutaya kwamadzimadzi, komanso kuletsa kwa shale. Cellulose ether imathandiza kuti madzi akubowola azikhala okhazikika komanso kuti azitha kugwira ntchito pamavuto.

Makampani a 8.Textile: M'makampani opanga nsalu, ether ya cellulose imagwiritsidwa ntchito ngati chowonjezera chopangira zovala zosindikizira nsalu. Imakulitsa kusasinthasintha, kuyenda, ndi kusintha kwa mitundu ya phala losindikizira, kuonetsetsa kuti zisindikizo zofananira ndi zowoneka bwino.

Ndikofunika kuzindikira kuti pali mitundu yosiyanasiyana ya ether ya cellulose yomwe ilipo pamsika, iliyonse ili ndi katundu wake ndi ntchito zake. Kusankhidwa kwa cellulose ether kumatengera momwe amagwiritsidwira ntchito, mawonekedwe omwe amafunidwa, komanso kugwirizana ndi zinthu zina zomwe zimapangidwira.

Mwachidule, cellulose ether ndi chowonjezera chosunthika chochokera ku cellulose. Amapereka kusungunuka kwamadzi, kusinthika kwa rheology, kupanga filimu, kusunga madzi, kumamatira, ndi kukhazikika kwa kutentha. Ma cellulose ether amapeza ntchito zomanga, zamankhwala, chisamaliro chamunthu, chakudya, utoto ndi zokutira, zomatira, mafuta ndi gasi, ndi mafakitale a nsalu. Katundu wake wosunthika umapangitsa kuti ikhale yofunikira pakuwongolera magwiridwe antchito, kukhazikika, ndi magwiridwe antchito amitundu yosiyanasiyana m'magawo osiyanasiyana.

Mndandanda wazinthu za KimaCell Cellulose ether


Nthawi yotumiza: Dec-02-2021
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