Ngaba i-HPMC ivutha

I-HydroxyPOpyl Methylcelcelsulose (HPMC) sisifo se-Polynents esetyenziswe ngokubanzi kumashishini ahlukeneyo kubandakanya amayeza, ukutya, ukwakhiwa kunye ne-cosmetics. Inqaku elibalulekileyo layo nayiphi na impahla, ngakumbi enye kwizicelo ezininzi, kukukhanya kwayo. Ukuvutha kubhekisa kubuchule bento yokukhupha kwaye kuqhubeke ukutshiswa phantsi kweemeko ezithile. Kwimeko ye-HPMC, ithathelwa ingqalelo ngokubanzi ayinakutsha okanye inobuthathaka obuphantsi kakhulu. Nangona kunjalo, kuyimfuneko ukuphonononga oku ngakumbi ukuqonda izinto eziphembelela ukuvutha kwayo, indlela aziphethe ngayo phantsi kweemeko ezahlukeneyo kunye nazo naziphi na izinto eziqwalaselwayo ezihambelana nokusetyenziswa kwayo.

1.Kwazisa uMgangatho:
I-HPMC yi-polymer ye-semi-spyhemetic ethathwe kwi-seluplose, i-polymer yendalo ifunyenwe kwiindonga zeseli zezityalo. I-Hydroxypropy ye-Hydropyl kunye ne-methyl iziswayo ngokuguqulelwa kwekhemikhali ukomeleza amanzi kunye nezinye iipropathi zeselselose. I-Seleculose geneant ayivunyelwanga kakhulu, kwaye ayicacanga ukuba ukumiliselwa kwala maqela amachiza kuyanda ukuvutha umlilo. Isakhiwo sekhemikhali se-HPMC sibonisa ukuba iphakathi kweepropathi ezinokutsha kakhulu ezinxulumene nezinto eziphilayo.

I-2. Uhlalutyo lwe-thermogravim (TGA):
I-TGA yindlela esetyenziselwa ukufundisisa uzinzo lwe-shirt kunye nokubola kwezinto. Izifundo ze-HPMC zisebenzisa i-TGA ibonakalise ukuba ihlala iphantsi kwe-thermal ye-thermal ngaphambi kokufikelela kwindawo yayo yokunyibilika ngaphandle kokubonisa indlela yokuziphatha enokutsha. Iimveliso ze-Devisation zihlala zingamanzi, ikharbon diokside, kunye neminye imithetho engafikelelekiyo.

I-3. Ubushushu bokulinganisa:
Iqondo lokushisa le-Ingling yeyona qondo lokushisa liphantsi apho into enokuyifaka khona kwaye igcina i-quation. I-HPMC ineqondo lokushisa eliphezulu kwaye lingaphantsi le-contaadoolly ngokuzenzekelayo. Iqondo lobushushu lingahluka ngokuxhomekeka kwibakala elithile kunye nokuqulunqwa kwe-HPMC.

I-4. Ukunciphisa i-Index ye-OXYGEN (i-LOI):
I-LOI ngumlinganiso wokufana nokufakwa kwempahla, ukulinganiswa njengeyona xinzelelo ye-oxygen efunekayo ukuxhasa ukudibanisa. Iinqobo eziphezulu ze-LOI zibonisa ukuvutha kwezantsi. I-HPMC ngokubanzi ine-loi ephezulu, ebonisa ukuba i-quassotion yayo ifuna uxinzelelo oluphezulu lweoksijini.

5. Izicelo eziSebenzayo:
I-HPMC iqhele ukusetyenziswa kumzi-mveliso wamachiza, apho imigangatho yokhuseleko eqinileyo ibalulekile. I-flamm yayo ephantsi yenza ukhetho lokuqala lwenziwa apho ukhuseleko lomlilo luyinkxalabo. Ukongeza, i-HPMC isetyenziswa kwizixhobo zokwakha ezifana nokufa kukamanzi, apho ipropathi yayo engenziweyo iyingenelo.

I-6. Amanyathelo okhuseleko:
Ngelixa i-HPMC ngokwayo ayicodli kakhulu, ukwenziwa kwangoku kwaye nayiphi na eyongezelelweyo ikhoyo kufuneka ithathelwe ingqalelo. Ezinye izicelo zinokuba neempawu ezahlukeneyo zokungavutha. Ukuphatha ngokufanelekileyo kunye neendlela zokugcina kufuneka kulandelwe ukuqinisekisa ukhuseleko lwabasebenzi kunye nokukhusela imililo yengozi.

7. Imigaqo kunye neMigangatho:
Iiarhente ezahlukeneyo zolawulo, ezinje nge-FDA (i-FDA kunye nolawulo lweziyobisi) kunye neminye imibutho yehlabathi, zinezikhokelo ngokusetyenziswa kwezixhobo kwizicelo ezahlukeneyo. Le migaqo ihlala ibandakanya ukuqwalaselwa komlilo. Ukuthobela le migaqo iqinisekisa ukuba iimveliso eziqulathe i-HPMC ihlangabezana nemigangatho ethile yokhuseleko.

I-HPMC ithathelwa ingqalelo ngokubanzi ayinakutsha okanye inobuthathaka obuphantsi kakhulu. Ubume bayo bekhemikhali, ubushushu obuphezulu bokufundisa kunye nezinye iipropathi ze-thermal banegalelo kukhuseleko lwayo kwizicelo ezahlukeneyo. Nangona kunjalo, ukuqulunqwa ngokupheleleyo kunye nayiphi na imisebenzi ekhoyo kufuneka kuthathelwe ingqalelo nezikhokelo zoKhuseleko kunye nemigaqo ihlala ihambelana nokuqinisekisa ukusetyenziswa kwe-HPMC enoxanduva kwimizi-mveliso eyahlukeneyo.