Hydroxypropyl methylcellulose (hpmc) ndi polymer yosiyanasiyana yomwe imagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana kuphatikiza mankhwala opanga mankhwala, zomangamanga, chakudya ndi zodzola. Pawiri imapangidwa kudzera mu njira zingapo zamankhwala zokhudzana ndi zinthu zosiyanasiyana zoyambira.
Hydroxypropylmethylcelulose ndi polymer polymer polymer yochokera ku cellulose, polymer achilengedwe omwe amapezeka khoma la cell. Chifukwa cha zovuta zake zapadera, zimagwiritsidwa ntchito ngati thiccener, okhazikika, komanso othandizira mafashoni osiyanasiyana. HPMC imapangidwa posinthira pa cellulose pogwiritsa ntchito mankhwala poyambitsa hydroxypyl ndi magulu a methyl.
zopangira:
1. Cellulose:
Source: Cellulose ndiye zida zazikulu zopangira hpmc ndipo zimachokera ku ulusi wazomera, nthawi zambiri nkhuni zamkati kapena thonje.
Kukonza: Cellulose imapezeka polemba ma cellulose yovuta m'mayunitsi ang'onoang'ono m'magawo ang'onoang'ono, chifukwa chake kupanga zida zoyambira kusinthitsa zina.
2. Mapulogalamu oxide:
Source: Propyyne oxide ndiye gawo lalikulu la kusintha kwa hydroxypropyl ndipo amachokera ku sefechemical proplene.
Kukonza: Prosidyne oxide amakumana ndi cellulose pamaso pa alkali kuti ayambitse magulu a hydroxypyl mu kilodi yam'madzi.
3. Methyl chloride:
Source: Methyl chloride nthawi zambiri amapangidwa kuchokera ku Methanol, omwe amatha kuchokera ku masitolo achilengedwe kapena magwero a biomass.
Kukonza: Methyl chloride amagwiritsidwa ntchito kuchita ndi cellulose kuyambitsa magulu a meya kuti apange mawonekedwe omaliza a hydroxypropyllulose.
4. Sodium hydroxide:
Source: sodium hydroxide, imadziwikanso kuti caustic soda, ndi maziko olimba opangidwa ndi electrolysis ya sodium chloride (mchere wamchere).
Kukonza: sodium hydroxide imagwiritsidwa ntchito ku ma cellulose kuti apititse patsogolo ma proplene oxide kuphatikiza magulu a hydroxypyl.
5. Hydrochloric acid:
Source: Hydrochloric acid ndi gawo la njira zingapo za mafakitale, monga chlorine kupanga.
Kukonza: Gwiritsani ntchito hydrochloric acid kusiya kusakaniza ndi kusakaniza kosakanikirana kuti muwonetsetse Ph moyenera PH imasungidwa munthawi ya HPMC.
6. Madzi:
Source: Madzi ndi gawo lalikulu mu kaphatikizidwe kwa HPMC, ndikuchita ngati njira yothandizira ndikulimbikitsa hydrolysis of cellulose.
Kukonza: Madzi amagwiritsidwa ntchito m'magawo osiyanasiyana pazopanga, kuphatikizapo hydrolysis of cellulose ndi kusambitsa ndi kuyeretsa.
Kupanga:
Kupanga kwa hydroxypropyl methylcellulose kumaphatikizapo njira zingapo, zomwe zidanenedwa pamwambapa zimatenga gawo mu kaphatikizidwe
Udindo Wamkulu.
Kukonzekera kwa Cellulose:
Cellulose amalekanitsidwa ndi ulusi wa chomera (zamkati kapena thonje) ndipo chimachitika njira zingapo kuti zichepetse kunenepa, kumapangitsa kuti zisinthe.
Chithandizo cha alkali:
Cellulose amathandizidwa ndi sodium hydroxide kuti apange malo okhala alkaline kuti achitire ndi ma propylene oxide.
Kuyamba kwa Hydroxypropyl:
Propyyne oxide imawonjezeredwa ndi cellulose yopangidwa ndi ma cellose yoyambitsa ma hydroxypyl m'magulu am'madzi a cellulose.
Mafalankhani a Methyl:
Methyl chloride imayambitsidwa mu zomwe sizingachitike, zomwe zimapangitsa kuwonjezera kwa magulu a methyl kupita ku hydroxyproproproproproproproproproproproproproproproproproproproproproproproproproproprose.
Kusintha:
Gwiritsani ntchito hydrochloric acid kuti athetse kusakaniza ndi kusakaniza kuti muwonetsetse kuti chinthu chomaliza sichili chofunikira kwambiri.
Kuchapa ndi kuyeretsa:
Chifukwa cha hydroxypropyl methylcellulose amatsuka ndikutsukidwa kuti achotse zodetsa, zosakwanira zopangira ndi zinthu.
Kuyanika:
HPMC yoyeretsedwa ikuuma kuti mupeze zomaliza, zomwe ndizoyera mpaka ufa woyera.
Ntchito za hydroxypropyl methylcellulose:
HPMC ili ndi ntchito m'mafakitale osiyanasiyana chifukwa cha malo ake apadera:
Mankhwala:
Amagwiritsidwa ntchito ngati zomatira, zokutira filimuyo komanso matrict-amasulidwa-kumasulidwa m'makonzedwe opanga mankhwala.
Pilira:
Amagwiritsidwa ntchito ngati thickener ndi madzi osungitsa madzi muzogulitsa zopangidwa ndi simenti monga mativa ndi ziphuphu.
Makampani Ogulitsa Chakudya:
Amagwiritsidwa ntchito ngati thicker, ribilifarite ndi emulsifier mu chakudya, kuphatikizapo msuzi, zovala ndi zinthu zophika ndi zinthu zophika.
zodzikongoletsera:
Ogwiritsidwa ntchito ngati thickir ndi kukhazikika pamapangidwe odzikongoletsera monga mafuta ndi mafuta odzola.
Utoto ndi zokutira:
Ntchito ngati thickir ndi rheology yosintha mumawu opangidwa ndi madzi ndi zokutira.
Zogulitsa Zaumwini:
Ikuwonjezeredwa pamagulu omwe amasamalira anthu monga shampoos ndi thupi limatsuka komanso kulimbitsa thupi.
Maganizo a Zachilengedwe:
Ngakhale HPMC imagwiritsidwa ntchito polymer yogwiritsidwa ntchito poliga, iyenera kuganiziridwa. Kupanga kwa HPMC kumakhudzanso zochita za mankhwala komanso kugwiritsa ntchito ma diatrochemamical. Kuyesayesa kumachitika kuti mupeze magwero okhazikika a cellulose ndikukonza njira zopangira kuti muchepetse zachilengedwe.
Hydroxypylmyl methylcellulose ndi polymer yofunika kwambiri ndi ntchito zosiyanasiyana mafakitale osiyanasiyana. Zopangira zophatikizika zomwe zimakhudzidwa ndi kaphatikizidwe kake zimaphatikizapo ma cellulose, ma prowyl oxide, sodium hydroxide, madzi omwe amapezeka njira zingapo zopangira malonda omaliza. Kuzindikira zopangira ndi kupanga njira ndizofunikira kuti mumvetsetse katundu ndi ntchito za HPMC ndikuwona njira zopangira zokhazikika mtsogolo.
Post Nthawi: Feb-19-2025