Luhlobo luni lwePolymer yi-HPMC?

I-HydroxyPOpyl Methylcelcelsulose (HPMC) yi-polymer eguquguqukayo efumana izicelo ezibanzi kumashishini ahlukeneyo, kubandakanya amayeza, ukutya, ukwakhiwa kunye ne cosmetics.

1. Intshayelelo kwi-HPMC:

I-HydroxyPOpyl Methylcelcelsulose (HPMC) yi-semi-synthetic, i-InErt, i-villmelastic polymer ethathwe kwi-sellulose. Inziwa ngokuguqulwa kweekhemikhali kwe-seluplose, ebandakanya i-etheriya ye-alkali selsulose nge-propylene oxide kunye ne methyl chloride. Imveliso ebangela ukuba ibe mhlophe ukuya kwi-off-off-off-ngaphandle kwe-powder enganyibilikisi emanzini kodwa i-insulanyile kwizinyibilikisi eziphilayo.

2. Ulwakhiwo kunye neepropathi:

Isakhiwo sika-HPMC siqulathe i-wacklose ye-sellyulose, i-polymer yendalo eyenziwe ngeeyunithi ze-glucose ezidityaniswe ngu-β (1 → 4) Glycosidic Bonds. Kwi-HPMC, amanye amaqela e-hydroxyl kwiiyunithi zeGlucose zifakwe endaweni ye-2-hydroxyl kunye namaqela e-methyl. Oku kutshintsha endaweni yepropathi yePolymer xa kuthelekiswa ne-Native Selelose, ukudlulisela ukwenziwa kokuphucula amandla, i-viscofity, kunye nesakhono sokwenza ifilimu.

Iipropathi ze-HPMC ziyahluka ngokuxhomekeka kwizinto ezinje ngenqanaba lokufakwa endaweni (DS), ubunzima bemolekyuli, kunye nokusasazwa kobungakanani be-suctor. Ngokubanzi, imiboniso ye-HPMC:

Iipropathi zefilimu ezilungileyo zefilimu

Ukuziphatha kwe-thermal

Umthamo ophezulu wokugcina amanzi

Uzinzo ngaphezulu kwe-pH ye-pH

Ukuhambelana nezinye ii-polymers kunye nokongezwa

Ubume be-ionic, beyenza ihambelana nezithako ezahlukeneyo

I-3. Synthesis ye-HPMC:

I-Synthesis ye-HPMC ibandakanya amanyathelo aliqela:

I-Alkali Selsulose: I-Seleulose inyangwa ngesisombululo se-alkaline ukuze senze i-alkali sellulose.

Isiko le-ether

Ukuhlamba kunye nokucoca Imveliso yesiphumo ihlanjwa, yahlanjwa, kwaye ihlanjululwe ukuba isuse ukungcola.

Ukomisa: I-HPMC ecocekileyo yomiswe ukufumana imveliso yokugqibela kwifom yomgubo.

4. Ukusetyenziswa kwe-HPMC:

I-HPMC ifumana izicelo ezixhaphakileyo kumashishini ahlukeneyo:

I-PhamaceOuticals: I-HPMC isetyenziswa ngokufanelekileyo njengombono wamachiza okwenza umbilini wecwecwe, ifomu yokukhutshwa kwe-Oppermes, amalungiselelo e-Ophthalmic, kunye nokumiswa. Isebenza njenge-binder, i-thi cokener, ifilimu yangaphambili, kunye ne-Arhente yokukhupha i-orhente kwiifom zedosi ezahlukeneyo.

Umzi-mveliso wokutya: kwishishini lokutya, i-HPMC isetyenziswa njenge-thi chorner, i-sticker, i-eulsifier, kunye nearhente yokugcina umswakama kwiimveliso ezifana nempahla ebhakiweyo, iisethi, iintsana. Iphucula ukuqulunqwa, ishesi yobomi, kunye nomlomo kwiimveliso zokutya.

Ulwakhiwo: I-HPMC sisithako esiphambili kwizixhobo zokwakha ezifana nokufa kukamanzi, imifuno ye-tile, kunye neemveliso ezisesikweni. Isebenza njengearhente yokugcina amanzi, iphucula ukusebenza ngokusebenza, kunciphisa ukungcungcutheka, kunye nokuphucula ubunamatheko kwimeko yokwakha.

I-cosmetics: i-HPMC isetyenziswa kwi-cosmetics kunye neemveliso zononophelo lomntu njenge-thi choickerer, i-stabilizer, kunye ne-arhente yokwakha ifilimu kwiimveliso, i-lotions, i-shampoos, kunye neeglasi. Inika i-viscosity, yandisa ukuthungwa, kwaye inika imvakalelo egudileyo, engathandekiyo.

Ezinye iinkqubo: I-HPMC ikwaqeshwa kwiprinta yokushicilela, i-ceramics, ipeyinti, isiciko, kunye neoli kwiinkqubo ezahlukeneyo zemizi-mveliso.

5. Imbono yexesha elizayo kunye nemiceli mngeni:

Imfuno ye-HPMC kulindeleke ukuba iqhubeke ngokukhula ngenxa yeepropathi zawo ezihambelanayo kunye nezicelo ezahlukeneyo. Nangona kunjalo, imiceli mngeni efana nokuyitshintsha amaxabiso ezinto ezibonakalayo, iingxaki zolawulo, kunye nokhuphiswano oluvela kwezinye iipolimers zinokufumana ifuthe elinamandla. Iinzame zophando zigxile ekuphuculeni ukusebenza kwe-HPMC, ukuphononongwa kweendlela ezizinzileyo ze-synthesi, kunye nokwandisa izicelo zayo kumacandelo avelileyo afana ne-biodicinology.

I-HydroxyPOpyl Methylcelcelsele (i-HPMC) yi-polymer exabisekileyo ngoluhlu olubanzi lwezicelo kumashishini amaninzi. Isakhiwo sayo esahlukileyo, iipropathi, kunye ne-synthesis zenza isithako esibalulekileyo kwiimveliso zamachiza, iimveliso zokutya, izixhobo zokwakha, izixhobo zokuthambisa, kunye nezicelo ezahlukeneyo zeshishini. Njengoko iinzame zophando kunye nophuhliso ziyaqhubeka, i-HPMC ilungele ukuhlala umdlali ophambili kwishishini lePolymer, ehambisa izisombululo ezinobuchule bokuhlangabezana neemfuno zentengiso.