Kodi zida za riw za hydroxypypyl ndi chiyani methylcellulose?

Hydroxypropyll methylcellulose (hpmc) ndi polimyo yolimba ndi ntchito zosiyanasiyana mafakitale osiyanasiyana, kuphatikizapo zamankhwala osiyanasiyana, kuphatikiza, chakudya ndi zodzola. Zopangira zogwiritsidwa ntchito ku kaphatikizidwe kwa HPMC zimachokera ku magwero achilengedwe ndikusintha njira zingapo zothetsera zomwe mukufuna.

Cellulose: zoyambira

Zolemba zazikuluzikulu za HPMC ndi cellulose, chakudya chovuta chopezeka mumalo a cell. Thonje ndi zamkati zamkati ndi magwero wamba a cellulose. Mafuta a cellulose amayamba kuchotsa zodetsa kenako mordrolyzd kuti muchepetse unyolo wa cellulose mu polysaccharides. Njirayi imaphatikizapo kugwiritsa ntchito asidi kapena ma enzymes kuti ayambitse ma glycosidic zomangira zomwe zilipo mu cellulose, zomwe zimachitika m'zipinda za cellulose zotchedwa cellulose yokhazikika.

Propyyne oxide: Kuyambitsa hydroxypropyl

Pambuyo popeza ma etheerose ether, gawo lotsatira limaphatikizapo kuyambitsa magulu a hydroxypyl mu msana wa m'kompyuta. Propyyne oxide ndizinthu zopangira zofunikira zomwe zimagwiritsidwa ntchito ndi izi. Pamaso pa chothandizira cha alkaline, ma prowyne oxide amakumana ndi magulu a hydroxyl pa cellulose pamtunda, zomwe zimapangitsa kuphatikiza kwa magulu a hydroxypyl. Izi, zotchedwa Tortherition, zimathandizanso kuti zisinthe thupi ndi mankhwala a cellulose, kupanga hydroxypropyl cellulose.

Methyl chloride: kuwonjezera gulu la methyl

Polowetsa njira yotsatira, methyl chloride imagwiritsidwa ntchito kuyambitsa ma medyl magulu am'madzi am'deralo. Njira iyi, yotchedwa methylation, imaphatikizapo kugwirira cellulose ndi methyl chloride pamaso pa maziko a maziko. Magulu a methyl amawonjezeredwa ku hydroxypropyllulose kuti apange hydroxypropymethylcellulose (hpmc). Mlingo wa zolowa m'malo mwa hydroxypyl ndi meth me metrine gawo la glucose mu cellulose mu cellulose mu cellulose mu cellulose mkati mwa ma cellulose ndipo amatha kuwongolera katundu wa HPMC.

Alkali: Nesselizizs ndikuwongolera ma visc

Pambuyo pa embimbication ndi methslation masitepe, hpmc nthawi zambiri zimakhala nsomba. Maziko monga sodium hydroxide amagwiritsidwa ntchito pokana malonda. Gawoli ndilofunikira kukwaniritsa gawo lofunikira ndikuwonjezera kukhazikika kwa HPMC. Kuonjezeranso maziko amathandizanso kuwongolera njira zothetsera HPMC, ndikuwapangitsa kuti akhale oyenera kugwiritsa ntchito mitundu yosiyanasiyana yomwe ufa umatenga gawo lofunikira, zinthu zomanga zamankhwala.

Kuyeretsa ndi kusefa: kuwonetsetsa kuti

Pambuyo mankhwala, zinthu za HPMC zimatsukidwa kuti zichotse zida zilizonse zosakwanira, zopangidwa ndi zinthu, kapena zosayera. Kuyeretsa kumeneku kumachitika pogwiritsa ntchito kusefa zinthu, kuonetsetsa kuti chinthu chomaliza cha HPMC chimakwaniritsa miyezo yapamwamba. Kuyeretsa ndi njira yovuta yothetsera zinthu zomwe zingakhudze magwiridwe antchito ndi chitetezo cha HPMC pakugwiritsa ntchito kwake.

Mapulogalamu a hydroxypropyll methylcellulose

Gawo la mankhwala: HPMC imagwiritsidwa ntchito kwambiri makampani opanga mankhwala ngati chofunda, kanema wakale komanso wovomerezeka womasulidwa mu ma piritsi. Kutha kwake kupanga mafilimu owonekera kumapangitsa kuti zikhale zoyenera piritsi, kupereka mankhwala oteteza mankhwala.

Ntchito Yomanga: M'makampani omanga, HPMC imagwiritsidwa ntchito pazolinga za simenti monga matope, zomatira a Stucco, ndi Tile. Imagwira ntchito ngati thiccener, wogulitsa madzi, ndikusintha mphamvu ndi kutsatira.

Makampani ogulitsa zakudya: HPMC imagwiritsidwa ntchito pazachipatala ngati thiccener, ribiface ndi emulsifier. Amagwiritsidwa ntchito m'njira zosiyanasiyana zakudya, kuphatikizapo msuzi, zovala ndi zakudya.

Zodzikongoletsera: Mu zodzikongoletsera, hpmc imagwiritsidwa ntchito popanga zina monga zonona, zotupa, ndi shampoos kupereka mapangidwe, ndikuwonjezera ntchito yonseyo.

Utoto ndi zokutira: hpmc imagwiritsidwa ntchito ngati thickir ndi kusungunuka m'matumba ochokera m'madzi ndikukuthandizani kuti athandize kukonza zomwe zimachitika.

Zogulitsa Zaumwini: HPMC imapezeka m'malo osiyanasiyana osamalira patokha, kuphatikizapo mankhwala osamalira mano komanso tsitsi, komwe kumachitika ngati chofunda komanso kusinthika kwa usckous.

Hydroxypylmmyl methylcellulose ndi polymer yofunika kwambiri yogwiritsa ntchito mafakitale osiyanasiyana. Kaphatikizidwe wa HPMC imaphatikizapo kugwiritsa ntchito cellulose, ma propyle oxide, methyl chloride, alkali ndi kuyeretsa njira kuti awonetsetse kuti zinthu zili bwino kwambiri. Kusintha kwa HPMC kumayambira kuchokera pakusintha kwa thupi ndi mankhwala a cellulose, ndikupangitsa kukhala chofunikira kwambiri pa mankhwala, omanga, chakudya, zodzola zawo. Kuzindikira zopangira ndi kapangidwe kake ndizofunikira kwambiri kuti mugwirizane ndi ma hpmc pa mapulogalamu apadera ndikutha kugwiritsa ntchito magwiridwe ake osiyanasiyana.