Hydroxypropylmethylcellulose (HPMC) ndeye multifunctional molecular compound iyo yakashandiswa zvakanyanya muindasitiri yekuvaka.Inoshandiswa zvakanyanya mumaputty application sezvo ichivandudza kuita kwese uye kunaka kweiyo putty.Muchikamu chino, tichaongorora mashandisirwo eHPMC mune putty, ongorora matambudziko angamuka panguva yekushandiswa kwayo, uye togovera mamwe matipi ekudzivirira aya matambudziko.
Kutanga, ngatitarisei zvakanyanya maitiro eHPMC.Ndiyo nonionic cellulose ether, inonyungudika mumvura uye mamwe maorganic solvents.Yayo yakasarudzika molecular chimiro inopa yakanakisa viscosity, kuchengetedza mvura uye inonamatira zvimiro.Naizvozvo, ndeye yakanakira yekuwedzera kune putty application.
HPMC inogona kushandiswa seyakakora, binder uye emulsifier mune putty maumbirwo.Iyo ine yakanakisa kuchengetedza mvura iyo inobatsira kudzivirira putty kubva pakuoma nekukasira.Iyo inowedzerawo kunamatira kweputty kune substrate, ichiita kuti igare yakasimba.Izvi zvivakwa zvinoita kuti HPMC ive chinhu chakakosha mumhando yepamusoro putties.
Nekudaro, mamwe matambudziko anogona kuitika kana HPMC ichishandiswa mu putty.Dambudziko rekutanga nderekuti HPMC inonzwa pH uye shanduko yekushisa.Kana iyo pH yekuumbwa kweputty yakanyanya kuwanda, inogona kukonzera iyo HPMC kurasikirwa neviscosity.Panguva imwecheteyo, kana kutonhora kwakanyanya, kuchaita kuti HPMC iderere, izvo zvinokanganisa kushanda kweputty.
Rimwe dambudziko rinogona kumuka ndere kubhuroka.Kana HPMC isina kusanganiswa zvakanaka nezvimwe zvinongedzo mune putty formula, inogona kuumba clumps kana clumps.Aya mapundu anokanganisa kunaka kweiyo putty, zvichiita kuti isanyanya kutsvedzerera uye zvakanyanya kuoma kuisa.
Kuti udzivise matambudziko aya, mimwe mitemo yakakosha inofanirwa kutevedzwa kana uchishandisa HPMC muPutty application.Kutanga, zvinodikanwa kuti usarudze iyo yakakodzera HPMC mhando yekuumbwa kweputty.Mhando dzakasiyana dzeHPMC dzinogona kunge dziine hunhu hwakasiyana, saka mhando chaiyo inofanirwa kusarudzirwa imwe application.
Chechipiri, zvakakosha kunyatsosanganisa HPMC pamwe nezvimwe zvinongedzo mukugadzira putty.Izvi zvinobatsira kudzivirira mapundu kana mapundu.Izvo zvakakoshawo kushandisa iyo chaiyo yekusanganisa maitiro kuve nechokwadi chekuti putty yakanyatso kusanganiswa.
Chechitatu, teerera kune pH uye tembiricha yeputty formula.Izvo zvakakosha kuve nechokwadi kuti pH iri mukati meiyo yakakurudzirwa renji yemhando yeHPMC iri kushandiswa.Izvo zvakakoshawo kutarisa tembiricha yekugadzira uye kuichengeta mukati meyakakurudzirwa renji kudzivirira HPMC kudzikira.
Muchidimbu, HPMC chinhu chakakosha mumhando yepamusoro putty magadzirirwo.Iyo inopa yakanakisa kuchengetedza kwemvura, adhesion uye viscosity maitiro ayo anogona kuvandudza kuita kwese uye kunaka kwe putties.Zvisinei, mamwe matambudziko anogona kuitika panguva yekushandiswa kwayo, zvakadai sekunzwa kune pH uye kuchinja kwekushisa, caking, etc. Nokutevera mamwe mitemo inokosha kana uchishandisa HPMC, matambudziko aya anogona kudziviswa uye putty yepamusoro inogona kuwanikwa.
Nguva yekutumira: Jul-27-2023