Hydroxypropyl methylcellulose HPMC inogona kuvandudza zvakanyanya kuchengetwa kwemvura kwedhaka.Muyero wakaderera wehydroxypropyl methylcellulose HPMC unogona kuvandudza zvakanyanya mwero wekuchengetedza mvura yedhaka.Kana dosi iri 0.02%, mwero wekuchengetedza mvura unowedzera kubva pa83% wakasimuka kusvika pa88%;apo dosi yaive 0.2%, mwero wekuchengetedza mvura wakasvika 97%.Panguva imwecheteyo, iyo yakaderera yeHPMC inoderedzawo zvakanyanya dhigirii ye delamination uye kubuda ropa kwedhaka, izvo zvinoratidza kuti HPMC haigone kungovandudza kuchengetwa kwemvura yedhaka, asi zvakare inovandudza zvakanyanya kubatanidzwa kwedhaka, iro. yakakosha pakufanana kwemhando yekuvaka dhaka.zvakanaka kwazvo.
Nekudaro, hydroxypropyl methylcellulose HPMC ine imwe dhigirii yekukanganisa pane inoshanduka simba uye inomanikidza simba redhaka.Nekuwedzera kwehydroxypropyl methylcellulose HPMC yemukati, iyo flexural simba uye kumanikidza simba redhaka zvishoma nezvishoma zvakaderera.Panguva imwecheteyo, hydroxypropyl methylcellulose HPMC inogona kuwedzera kusimba kwedhaka.Kana zvirimo zvehydroxypropyl methylcellulose HPMC zviri mukati me 0.1%, simba rekusimba redhaka rinoramba richiwedzera nekuwedzera kweHPMC, nepo Kana zvirimo zvinodarika 0.1%, simba rekusimba harichawedzera zvakanyanya.Hydroxypropyl methylcellulose HPMC inogonawo kuwedzera zvakanyanya iyo compressive shear bond simba redhaka.Kuwedzera 0.2% HPMC inogona kuita kuti dhaka bhondi simba kubva 0.72MPa riwedzere kusvika 1.16MPa.
Zvidzidzo zvakaratidza kuti hydroxypropyl methylcellulose HPMC inogona kurebesa nguva yekutonhora yedhaka uye kuderedza zvakanyanya kutsvedza kwedhaka, iro rinobatsira zvakanyanya pakuvaka mataira paste.Kana HPMC isati yawedzerwa, simba rechisungo redhaka rakatonhodzwa kwemaminetsi makumi maviri rinoderera kubva pa0.72MPa kuenda ku0.54MPa.Mushure mekuwedzera 0.05% uye 0.1% HPMC, iyo bond simba redhaka rakatonhodzwa kwemaminetsi makumi maviri ndeye 0.8MPa uye 0.84MPa, zvichiteerana.Kana HPMC isina kuwedzerwa, kutsvedza kwedhaka ndeye 5.5mm.Nekuwedzera kweHPMC zvemukati, kutsvedza kunoramba kuderera.Kana zvirimo zviri 0.2%, kutsvedza kwedhaka kunodonha kusvika 2.1mm, uye kutsvedza kunoderera zvakanyanya.Uye kumwe kuonda-layer kuvaka kunopa rubatsiro rwehunyanzvi.
Mukuwedzera, hydroxypropyl methylcellulose HPMC inogona kunyatsodzivisa kuumbwa kwepurasitiki inoputika mudhaka uye kuderedza zvakanyanya kuputika kwepurasitiki.Kana zvirimo zveHPMC zvadzikira, iyo crack index inodzikira zvakanyanya nekuwedzera kwezviri mukati meHPMC.Kana zvirimo zveHPMC zviri 0.1% uye 0.2%, hukama hwakapwanyika indekisi yedhaka i63% ne50%, zvichiteerana.Mushure mekunge zvirimo zveHPMC zvinodarika 0.2%, Kutsemuka kwepurasitiki kwedhaka hakuchadzikiswa zvakanyanya.
Nguva yekutumira: Kubvumbi-11-2023