1. Incamake ya selile ether (HPMC)
Hydroxypropyl methylcellulose (HPMC) ni selile ikoreshwa cyane ya selile ether, ihindurwa muburyo bwa chimique na selile. Ifite amazi meza cyane, gukora firime, kubyimba no gufatira hamwe, bityo ikoreshwa cyane mubikoresho byubaka. Ikoreshwa rya HPMC mubikoresho bishingiye kuri sima ahanini ni ukunoza amazi, kubika amazi no guhindura igihe cyagenwe.
2.Ibikorwa shingiro byo gushiraho sima
Inzira ya sima ikora namazi kugirango ikore hydrates yitwa hydration reaction. Iyi nzira igabanijwemo ibyiciro byinshi:
Igihe cyo kwinjiza: Ibice bya sima bitangira gushonga, bikora calcium ion na silike ion, byerekana imiterere yigihe gito.
Igihe cyo kwihuta: Ibicuruzwa bitanga amazi byiyongera byihuse kandi gahunda yo gushiraho iratangira.
Igihe cyo kwihuta: Igipimo cyamazi kigabanuka, sima itangira gukomera, kandi harakorwa ibuye rikomeye rya sima.
Igihe cyo gutuza: Ibicuruzwa bitanga amazi bikura buhoro buhoro kandi imbaraga ziyongera buhoro buhoro.
Gushiraho igihe mubisanzwe bigabanijwe mugihe cyambere cyo gushiraho nigihe cyo gushiraho. Igihe cyambere cyo gushiraho bivuga igihe paste ya sima itangiye gutakaza plastike, naho igihe cyanyuma cyo kwerekana bivuga igihe paste ya sima itakaza burundu plastike ikinjira murwego rwo gukomera.
3. Mechanism yingaruka za HPMC mugihe cyo gushiraho sima
3.1 Ingaruka
HPMC ifite ingaruka zikomeye zo kubyimba. Irashobora kongera ubwiza bwa paste ya sima kandi igakora sisitemu yo hejuru cyane. Ingaruka yibyibushye izagira ingaruka ku gutatanya no gutembera kwa sima, bityo bikagira ingaruka kumajyambere ya hydration. Ingaruka yibyibushye igabanya igipimo cyibicuruzwa biva mumazi hejuru ya sima, bityo bigatinda igihe cyo gushiraho.
3.2 Kubika amazi
HPMC ifite ubushobozi bwiza bwo gufata amazi. Kongera HPMC kuri sima paste birashobora kunoza cyane gufata amazi ya paste. Kugumana amazi menshi birashobora kubuza amazi hejuru ya sima guhumuka vuba, kugirango bigumane amazi muri paste ya sima kandi byongere igihe cyo gufata amazi. Byongeye kandi, kubika amazi bifasha paste ya sima kugumana ubuhehere bukwiye mugihe cyo gukira no kugabanya ibyago byo guturika biterwa no gutakaza amazi hakiri kare.
3.3 Kubura amazi
HPMC irashobora gukora firime ikingira itwikiriye ubuso bwa sima, bizabangamira reaction ya hydration. Iyi firime ikingira irinda guhuza hagati ya sima namazi, bityo bikadindiza inzira ya hydrata ya sima kandi bikongerera igihe cyagenwe. Ingaruka yo gutinda igaragara cyane cyane muburemere buke bwa HPMC.
3.4 Thixotropy yazamuye
Kwiyongera kwa HPMC birashobora kandi kongera thixotropy ya sima ya sima (nukuvuga, amazi yiyongera bitewe nimbaraga ziva hanze hanyuma agasubira muburyo bwambere nyuma yimbaraga ziva hanze). Uyu mutungo wa thixotropic ufasha kunoza imikorere ya sima ya sima, ariko kubijyanye no kugena igihe, iyi thixotropy yongerewe imbaraga irashobora gutuma slurry igabanywa munsi yingufu zogosha, bikongerera igihe cyo gushiraho.
4. Gushyira mubikorwa HPMC bigira ingaruka kumwanya wo gushiraho sima
4.1 Ibikoresho byo hasi
Mubikoresho byo kuringaniza hasi, sima isaba igihe kirekire cyo gutangiza igihe cyo kuringaniza no kugenzura. Ongeraho HPMC irashobora kongera igihe cyambere cyo gushiraho sima, bigatuma ibikoresho byo kwipimisha bigira igihe kinini cyo gukora mugihe cyubwubatsi, birinda ikibazo cyatewe no gushiraho hakiri kare sima ya sima mugihe cyo kubaka.
4.2
Muri minisiteri yabugenewe, HPMC ntabwo itezimbere gusa amazi ya minisiteri, ahubwo inongerera igihe cyo gushiraho. Ibi ni ingenzi cyane cyane mugihe gifite igihe kirekire cyo gutwara no kubaka, kureba ko minisiteri ikomeza gukora neza mbere yo kuyikoresha no kwirinda ingorane zubwubatsi zatewe nigihe gito cyo gushiraho.
4.3 Amabuye yumye
HPMC ikunze kongerwaho kumashanyarazi ivanze kugirango yongere imikorere yubwubatsi. Ingaruka yibyibushye ya HPMC yongerera ubwiza bwa minisiteri, byoroshye kuyikoresha no kurwego mugihe cyubwubatsi, kandi ikanongerera igihe cyagenwe, igaha abubatsi umwanya uhagije wo guhindura.
5. Ibintu bigira ingaruka kumwanya wo gushiraho sima na HPMC
5.1 Amafaranga yinyongera ya HPMC
Umubare wa HPMC wongeyeho ni ikintu cyingenzi kigira ingaruka kumwanya wa sima. Mubisanzwe, uko umubare munini wa HPMC wongeyeho, niko bigaragara cyane kwagura igihe cyo gushiraho sima. Ni ukubera ko molekile nyinshi za HPMC zishobora gutwikira hejuru ya sima kandi bikabangamira reaction.
5.2 Uburemere bwa molekuline ya HPMC
HPMC yuburemere butandukanye bwa molekuline igira ingaruka zitandukanye mugihe cyo gushiraho sima. HPMC ifite uburemere buke bwa molekuline mubisanzwe ifite imbaraga zo kubyimba hamwe nubushobozi bwo gufata amazi, bityo irashobora kongera igihe cyo gushiraho cyane. Nubwo HPMC ifite uburemere buke bwa molekile nayo irashobora kongera igihe cyo gushiraho, ingaruka ni nkeya.
5.3 Ibidukikije
Ubushyuhe bwibidukikije nubushuhe nabyo bizagira ingaruka ku ngaruka za HPMC ku gihe cyo gushiraho sima. Mu bushyuhe bwo hejuru, sima hydration reaction irihuta, ariko umutungo wo gufata amazi ya HPMC ugabanya umuvuduko. Mugihe cy'ubushyuhe buke, hydrata reaction ubwayo iratinda, kandi kubyimba no gufata amazi ya HPMC birashobora gutuma igihe cyo gushiraho sima kiba kirekire.
Umubare w'amazi-sima
Imihindagurikire y’amazi-sima nayo izagira ingaruka ku ngaruka za HPMC ku gihe cyo gushiraho sima. Ku kigereranyo kinini cy’amazi-sima, hari amazi menshi muri paste ya sima, kandi ingaruka zo gufata amazi ya HPMC zishobora kutagira ingaruka nke mugihe cyagenwe. Ku kigereranyo cyo hasi y'amazi-sima, ingaruka zo kwiyongera kwa HPMC zizagaragara cyane, kandi ingaruka zo kongera igihe cyo gushiraho zizaba zikomeye.
Nka sima yingenzi ya sima, HPMC igira uruhare runini mugihe cyo gushiraho sima ikoresheje uburyo butandukanye nko kubyimba, gufata amazi, no kudindiza reaction. Ikoreshwa rya HPMC rirashobora kongera igihe cyambere nicyanyuma cyo gushiraho sima, gutanga igihe kirekire cyo gukora, no kunoza imikorere yibikoresho bishingiye kuri sima. Mubikorwa bifatika, ibintu nkubunini bwa HPMC yongeyeho, uburemere bwa molekile, hamwe nibidukikije bihuriza hamwe ingaruka zabyo mugihe cyo gushiraho sima. Muguhindura muburyo bushyize mu gaciro, kugenzura neza igihe cyo gushiraho sima birashobora kugerwaho kugirango bikenewe imishinga itandukanye yo kubaka.
Igihe cyo kohereza: Jun-21-2024