1. Kuvandudza kuchengetwa kwemvura kwedhaka
Hydroxypropyl methylcellulose (HPMC) chinhu chakanakisisa chekuchengetedza mvura chinonyatsotora uye kuchengetedza mvura nekugadzira chimiro cheyunifomu network mudhaka. Uku kuchengetwa kwemvura kunogona kurebesa nguva yekubuda kwemvura mudhaka uye kuderedza mwero wekurasikirwa kwemvura, nekudaro kunonotsa hydration reaction rate uye kuderedza vhoriyamu shrinkage kutsemuka kunokonzerwa nekukurumidza kubuda kwemvura. Panguva imwecheteyo, nguva yakareba yakavhurika uye nguva yekuvaka inobatsirawo kuvandudza kunaka kwekuvaka uye kuderedza mukana wekutsemuka.
2. Kuvandudza kushanda uye rheology yedhaka
HPMC inogona kugadzirisa viscosity yedhaka, zvichiita kuti zvive nyore kushanda. Kuvandudzwa uku hakungonatsiridza kuyerera uye kushanda kwedhaka, asiwo kunowedzera kunamatira kwayo uye kuvhara pane substrate. Mukuwedzera, AnxinCel®HPMC inogonawo kuderedza kupatsanurwa uye kunyura kwemvura mumatope, kuita kuti zvikamu zvedhaka zviparadzike zvakaenzana, kudzivisa kushushikana kwekunetseka kwemunharaunda, uye kuderedza zvinobudirira mukana wekutsemuka.
3. Simbisa kunamatira uye kutsemuka kuramba kwedhaka
Iyo viscoelastic firimu yakaumbwa neHPMC mudhaka inogona kuzadza pores mukati medhaka, kuvandudza density yedhaka, uye kuwedzera kunamira kwedhaka kune substrate. Kuumbwa kwefirimu iyi hakungosimbisi chimiro chese chedhaka, asiwo kune chivharo chekudzivirira pakuwedzera kwe microcracks, nokudaro kuvandudza zvakanyanya kuputika kwemarara. Uye zvakare, iyo polymer chimiro cheHPMC inogona kuparadzira kushushikana panguva yekurapa dhaka, kuderedza kushushikana kunokonzerwa nekuremerwa kwekunze kana deformation ye substrate, uye kubatsira kudzivirira kumwe kukura kwekutsemuka.
4. Rongedza shrinkage uye plastiki shrinkage yedhaka
Dhaka rinowanzoita kutsemuka nekuda kwekubuda kwemvura panguva yekuomeswa, uye nzvimbo yekuchengetedza mvura yeHPMC inogona kunonoka kurasikirwa kwemvura uye kuderedza kuwanda kwevhoriyamu kunokonzerwa nekuderera. Uye zvakare, HPMC inogona zvakare kuderedza njodzi yekutsemuka kwepurasitiki shrinkage, kunyanya padanho rekutanga rekuisa dhaka. Iyo inodzora kumhanya kwekufamba uye kugovera kwemvura, inoderedza kushushikana kwecapillary uye kushushikana kwepamusoro, uye inoderedza zvinobudirira mukana wekuputika pamusoro pevhu.
5. Kuvandudza kutonhora-kunyungudutswa kwedhaka
Kuwedzerwa kweHPMC kunogona zvakare kusimudzira kutonhora-thaw kuramba kwedhaka. Kuchengeta kwayo mvura uye kugona kugadzira firimu kunobatsira kudzikisira kutonhora kwemvura mudhaka pasi pemamiriro ekunze ekupisa, kudzivirira kukuvadzwa kwechimiro chedhaka nekuda kwekuwedzera kwevhoriyamu yemakristasi echando. Uye zvakare, iyo optimization yeiyo pore chimiro chedhaka neHPMC inogona zvakare kudzikisa kukanganiswa kwechando-thaw kutenderera pane kutsemuka kuramba kwedhaka.
6. Rebesa iyo hydration reaction nguva uye optimize iyo microstructure
HPMC inorebesa iyo hydration reaction nguva yedhaka, ichibvumira simende hydration zvigadzirwa kuzadza dhaka pores zvakaenzana uye kuvandudza density yedhaka. Uku optimization ye microstructure inogona kuderedza chizvarwa chekuremara kwemukati, nekudaro ichivandudza iyo yakazara crack resistance yematope. Uye zvakare, iyo polymer cheni yeHPMC inogona kuumba kumwe kudyidzana neiyo hydration chigadzirwa, ichiwedzera kuvandudza simba uye kutsemuka kuramba kwedhaka.
7. Kuwedzera deformation kuramba uye simba absorption maitiro
AnxinCel®HPMC inopa dhaka imwe shanduko uye deformation kuramba, kuitira kuti igone kuchinjika kune yekunze nharaunda kana ichiiswa kunze kwemasimba kana shanduko yekushisa. Iyi simba yekunyudza pfuma inonyanya kukosha kune crack resistance, iyo inogona kuderedza kuumbwa uye kuwedzera kwekutsemuka uye kuvandudza kusimba kwenguva refu kwedhaka.
HPMC inonatsiridza kutsemuka kwedhaka kubva kune akawanda maficha kuburikidza neyakasiyana kuchengetedza mvura, kunamatira uye kugona kugadzira firimu, kusanganisira optimize kushanda kwedhaka, kuderedza shrinkage uye kuputika kwepurasitiki kutsemuka, kuwedzera kunamatira, kuwedzera nguva yakavhurika uye anti-freeze-thaw kugona. Muzvigadzirwa zvemazuva ano zvekuvaka, HPMC yave musanganiswa wakakosha wekuvandudza kutsemuka kwedhaka, uye tarisiro yekushandiswa kwayo yakakura kwazvo.
Nguva yekutumira: Jan-08-2025