Kodi hydroxyethyl cellulose polymer?

Hydroxyethyl cellulose (hec) ndi polymer. Kuti timvetse bwino izi, tiyenera kufufuza malingaliro oyambira a ma polima, kapangidwe ka cellulose ndi zochokera ku cellulose ndi zochokera, kapangidwe kake ndi katundu wa hydroxyethyl cellulose, komanso ntchito zake.

1. Malingaliro oyambira a polima

Ma polima ndi ma macroroleclar pa mankhwala opangidwa ndi kuchuluka kwakukulu kwa mayunitsi obwereza (otchedwa monomers) olumikizidwa ndi zomangira zamankhwala. Izi moommers amapanga zojambula zazitali kudzera pamavuto, kupatsa ma polima apadera akuthupi ndi mankhwala. Malinga ndi zomwe amayambitsa, ma poizo amatha kugawidwa kukhala ma poizo achilengedwe komanso ma polimars. Makosi achilengedwe amaphatikizapo ma cellulose, mapuloteni, ndi mphira wachilengedwe; Opanga ma politymers amaphatikizapo polyethylene, polystyrene, ndi polyvinyl chloride.

2. Cellulose ndi kapangidwe kake

Cellulose ndiye polic yolemera kwambiri polymer yochulukirapo mwachilengedwe, imapezeka mu makhoma a cell. Cellulose ndi polysaccharide wopangidwa ndi mayunitsi olumikizidwa ndi β (1 → 4) zomangira, zokhala ndi makeke okhazikika komanso okhazikika. Chifukwa cha mayunitsi ake obwereza, cellulose omwe ali ponseponse.

3. Kaphatikizidwe ndi kapangidwe ka Hydroxethyl cellulose

Hydroxyethyl cellulose ndi wochokera ku cellulose, yomwe imapezeka poyambitsa hydroxyethyl (-ch₂ch₂oh) m'malo ophatikizika mu cellulose molecular unyolo. Makamaka, cellulose zomwe zimakhudzana ndi ethyl chloroacetate kapena ethyl chloroacetate yankho pansi pa alkiline mikhalidwe ya hydroxyethyl cellulose.

Makina, hydroomthyl cellose amasungabe kuchuluka kwa ma cellose, ndiye kuti, unyolo waukulu wopangidwa ndi ambiri a mayunitsi a shuga obwereza. Komabe, magulu ena a hydroxyl amasinthidwa ndi magulu a hydroxyethyl, ndipo kusinthaku kumapangitsa kuti ma cellose akhale ndi soluluse ndi mawonekedwe a ufa wosiyana ndi ma cellulose oyamba. Ngakhale mafotokozedwe a milemiti, hydroxyethyl cellose akadali kuchuluka kwambiri, ndipo mawonekedwe ake ochulukitsa amakhala ndi mayunitsi mobwerezabwereza, motero amakwaniritsa tanthauzo la polymer.

4. Katundu wa hydroxyethyl cellulose

Monga polymer, hydroxethyl cellulose ili ndi polymer ena motere:

Kulemera kwambiri kwa molecular: ma molecular kulemera kwa hydroxethyl cellulose nthawi zambiri pamakhala pakati pa anthu masauzande komanso mamiliyoni a ma Dalton, akuwonetsa zowonekera za polymer.

Njira Yothetsera: Hydroxyethyl cellulose imatha kupanga njira yothetsera cololous colloidal yankho mu madzi ozizira komanso otentha. Makutu a yankho lake amakhudzana ndi kulemera kwa maselo ndi kuchuluka kwa zolowa m'malo mwake. Katunduyu ndilofunika kwambiri pakugwiritsa ntchito zambiri.

Thermossensitivity: Makulidwe a Hydroxethyl cellulose yankho limasintha ndi kutentha, kuwonetsa makermossensitivity, omwe ndi chinthu chodziwika bwino cha mayankho a polymer.

Kutha kwa mafilimu: Chifukwa cha kukopeka ndi kulumikizana kwa maunyolo ake a polymerl, ma hydroxethyl cellulose amatha kupanga mawonekedwe okhazikika mu njira yothetsera vutoli, ndikupereka luso labwino kwambiri.

V. Kugwiritsa ntchito hydroxyethyl cellulose

Chifukwa cha polymer yake yapadera, hydroxethyl cellulose imagwiritsidwa ntchito kwambiri m'minda yambiri. Otsatirawa ndi njira zina:

Zipangizo zomangira: Monga chowonjezera cha simenti, hydroxyethyl cellulose imatha kukonza madzi ndi kusungidwa kwamadzi kwa simenti slorry ndikusintha magwiridwe antchito.

Zovala ndi zojambula: Mu zofunda, hec imagwiritsidwa ntchito ngati thiccener, okhazikika komanso othandizira mafilimu kuti apititse patsogolo zotsatsa ndi mawonekedwe osalala.

Kuchita malonda: Katundu wake wabwino wabwino kumapangitsa kuti ikhale chinthu chofunikira motsatira mawonekedwe.

Makampani opanga mapepala: Hec amagwiritsidwa ntchito pokutidwa ndi pepala ndikukonzekera kusintha mawonekedwe ndi kusindikiza katundu.

Zodzikongoletsera: Hec imagwiritsidwa ntchito kwambiri pamafuta, mankhwala ndi zinthu za pakhungu.

Mapulogalamu awa amagwiritsa ntchito mwayi wa polymer katundu wa hydrothyl cellulose, monga mafayilo apamwamba, mawonekedwe a filimu komanso kukhazikika, ndikuwonetsanso magwiridwe ake komanso kufunikira kwake ngati polymer.

Hydroxyethyl cellulose ndi polymer omwe amapezeka ndi kusintha kwa mankhwala kwa cellulose. Kupanga kwake kwa maselo ake kumakhala ndi zigawo zambiri za ma shuga obwereza, omwe amasungabe machitidwe a zolemera kwambiri komanso kapangidwe kake pambuyo pa hydroxyethyl. Hydroxyethyl cellulose imawonetsa zachilengedwe monga mafayilo akuluakulu, yankho pulasitiki ndi luso la makanema, ndipo zimagwiritsidwa ntchito kwambiri m'minda yambiri. Chifukwa chake, zitha kunenedwa momveka bwino kuti hydroxethyl cellulose ndi polymer yofunika.