HydroxyPropyl methylcellose (HPMC) zvinonamatira zvakawana kutarisisa kwakawanda kutarisisa maindasitiri akasiyana siyana nekuda kweshamwari yavo inoshamisa uye neyakatipoteredza ushamwari. Ichi chinyorwa chinopa kutarisisa kwekunyatsoumbwa uye zvivakwa zveHPMC zvinonamatira. Iyo moleky chimiro cheHPMC, maitiro ayo ekugadzira, uye zvinhu zvinokanganisa zvivakwa zvinonamatira zvinokurukurwa. Pamusoro pezvo, inoongorora zvinoshambidza zvivakwa zveHPMC mune dzakasiyana zvikumbiro uye zvakanakira pamusoro petsika dzechinyakare.
Hydroxypropylmethylcylose (HPMC) ndeye cellulose inobviswa zvakanyanya kushandiswa mumasango akasiyana-siyana, kusanganisira mishonga yemishonga, chikafu, kuvaka uye kuomesa. HPMC madekisheni ari kuwana yakakurumbira seyakawirirana nedzimwe nzira kune tsika yekumanikidza nekuda kwezvinhu zvavo zvehukuru uye zvakanakisa kusungwa zvinhu.
1.Kuumbidzwa uye Molecular chimiro cheHPMC:
HPMC iri synthezed kubva kuCellulose, polysaccharide inowanikwa mumasango masero emadziro. Chemical modification of cellulose involves etherification of hydroxyl groups with propylene oxide and methylation with methyl chloride to form hydroxypropyl and methoxy groups respectively. Dhigirii rekutsiva
Iyo molecular chimiro cheHPMC ine mutsara maketeni eglucose units yakabatana ne β (1 → 4) Glycosic Zvisungo. Kuvapo kwehydroxypruppropyl uye methy Sripritue pane iyo cellulose ketani inopa solubility mumvura uye inowedzera mafirimu-ekuumba mafirimu. Iyo inotsiva maitiro uye degree rekutsiva rinokanganisa viscosity, solubility, uye inobata-gel maitiro eHPMC uye nekudaro kukodzera kwayo yekuzvinamatira.
2.HPMC inonamatira kugadzirwa maitiro:
HPMC madekisheni anowanzogadzirirwa nekuparadzira HPMC poda mumvura kana solvent kuti aumbe viscous solution. Iyo yekuparadzira maitiro inosanganisira hydration yeHPMC zvikamu, zvichikonzera kuumbwa kwekuumbwa kwemimisikidzwa. Iyo viscosity yemhinduro yekubatanidza inogona kugadziridzwa nekudzora kusunganidzwa uye degree rekutsiva kweHPMC.
Mune zvimwe zviitiko, mapurasitiki akadai se glycerol kana sorbitol inogona kuwedzerwa kugadzirisa kushandurudza uye kusungwa kwesimba. Kubatanidza-kubatanidza vamiririri vakadai seBorax kana simbi simbi vanogona zvakare kushandiswa kusimudzira simba rekubatanidza reHPMC madekisi. ADHESIRINE FAMPULTIVE inogona kuenderera mberi yakagadziridzwa nekuwedzera zvinowedzera senge tackfifiers, surfacts kana manhamba kuti agadzirise zvakananga zvivakwa.
3. Zvinhu zvinokanganisa kuita kwekunamatira:
Zvivakwa zveHPMC zvinokanganiswa nezvinhu zvakawanda, kusanganisira zvinongedzo zvinorema, degree rekutsiva, kusunganidzwa, ph, tembiricha uye kurapa mamiriro uye kuporesa mamiriro. Yakakwira molecular uremu uye degree rekutsiva kazhinji rinoguma nekuwedzera viscosity uye musungo simba. Nekudaro, kunyanyisa kutsiva kunogona kutungamira kugwenzi kana chikamu chekuparadzanisa chikamu, kubata zvivakwa zvinonamatira.
Iko kusvinuka kweHPMC mune yekunamatira mafomu inokanganisa viscosity, kunamatira uye kuoma nguva. ph uye tembiricha inokanganisa iyo solubility uye ine magyeta eHPMC, ine mamiriro akakwana akasiyana zvichienderana neyechokwadi giredhi uye zvido zvekushandisa. Kuporesa mamiriro ezvinhu, akadai sekuoma nguva uye tembiricha, anogona kukanganisa kusimudzira kugadzirwa uye kugadzirwa kwemafirimu.
4. Adhishing zvivakwa zveHPMC:
HPMC mahonyeti anoratidzira zvakanakisa zvekubatanidza zvinhu zvakasiyana-siyana zveSimberrates, kusanganisira pepa, huni, zvidimbu, ceramics uye mapurasitiki. Iyo inonamira inooma kuti igadzire chinoshanduka uye chinogara chisungo chine simba rakanaka kune unyoro, kupisa uye kukwegura. HPMC madekisheni zvakare akaderera-kunhuhwirira, asiri-ane chepfu, uye zvinoenderana nezvimwe zvinowedzera.
Mune mapepa uye kurongedza mafomu, HPMC zvinonyadziswa zvinoshandiswa kune mavara, carton chisimbiso uye kuomesa nekuda kwekutanga kwavo kwekutanga tack uye musungo simba. Muzvikamu zvekuvaka, HPMC-based Tile inonamira, plaster mauto uye majoini makomputa anopa kuita kwakanakisa kwekuvaka, kuderedza uye kudzokorora kwemvura. MuTEXILE kudhinda, HPMC thizipers inoshandiswa kudzora viscosity uye kuvandudza kudhinda kujekesa.
5. Zvakanakira HPMC Adesive:
HPMC madekisheni anopa akati wandei zvakanakira pamusoro pemanyorero echinyakare, achivaita sarudzo yekutanga kune akawanda mashandisirwo. Kutanga, HPMC inotorwa kubva mukuvandudzwa kwezvinhu zvinowanikwa uye ndeye biodegradable, kuderedza kukanganisa kwayo pane zvakatipoteredza. Chechipiri, HPMC Athesives ine yakaderera yehupfu uye allergenic kugona, kuvaita vakachengeteka kuti vashandise pakudya kwekudya uye zvekurapa.
HPMC mahonyeti anoda kugadzirira kushoma uye ipa yakanyanya kujairika kune akasiyana-siyana eSimberrates, kusanganisira yakasvibirira uye isina-pous zvinhu. Ivo vanopokana zvakanyanya nemvura, makemikari uye UV radiation, ichivimbisa kusimba kwenguva refu uye kuita. Uye zvakare, HPMC madekisheni anogona kugadzirwa kuti asangane nezvinodiwa chaizvo sekurapa nekukurumidza, kupisa kwakadzika kana kudzikisira kwevhisi.
6. Tarisiro yeramangwana uye kufambira mberi:
Kukura kuri kuwedzera kwezvinhu zvakaringana uye zvakatipoteredza zvigadzirwa zvekutyaira kutsvagisa uye kusimudzira kuedza kugadzirisa maitiro uye kuwanda kweHPMC anomiririra. Kufambira mberi kwemberi kunogona kuisa pfungwa pakuvandudza kudzikisira kwemvura, kugadzikana kwemvura, uye zvinonamatira zvimiro zveHPMC zvinowedzera, nzira dzinobatanidza, uye nzira dzekugadzirisa.
Iko kuvandudzwa kwe bio-best uye biohandura dzimwe nzira kune dzimba dzekudyara dzinotarisirwa kuwedzera huwandu hwekushandisa hweHPMC maindasitiri akasiyana siyana. Kubatana pakati peAcademia, maindasitiri, uye masangano ehurumende anokoshesa kufambira mberi tekinoroji yeHPMC uye kugadzirisa matambudziko anobuda sekudzokorora uye kurambidza marara.
HydroxyPropyl methylcellose (HPMC) zvinoshatisa zvinopa mhinduro dzakasarudzika uye dzinoverengeka dzezvishandiso zvakasiyana-siyana zvekubatanidza, kubva papepa uye kurongedza kune kuvaka uye zviyero. Kunzwisisa kuumbwa uye zvivakwa zveHPMC kwakakosha kuumba mainamatira nekuita kwakakwana kwekuita uye zvakatipoteredza kuenderana. Kuburikidza nekutsvagisa uye mharidzo yeHPMC ichatamba yakakosha mukusangana nekuchinja kwezvido zveindasitiri yemazuva ano uku kuderedza mamiriro ekunze.
Kutumira Nguva: Kukadzi-18-2025