Zvinokoradzinoshandiswa zvakanyanya, uye tsvakiridzo yekushandiswa kwazvino yakabatanidzwa zvakanyanya mukudhinda nekudhaya machira, machira anobva mumvura, mishonga, kugadzira chikafu uye zvinodiwa zvezuva nezuva.
1. Kudhinda nekudhaya machira
Kudhinda machira nependi kuti pave nemhedzisiro yakanaka yekudhinda uye mhando, zvakanyanya zvinoenderana nekushanda kwepurinda rekudhinda, umo mashandiro epurinda anoita basa rakakosha. Kuwedzera kwepurinda rekudhinda kunogona kuita kuti chigadzirwa chekudhinda chipe ruvara rwakanyanya, dhinda rakajeka, ruvara rwakajeka uye rwakazara, kunatsiridza kupenya kwechigadzirwa uye thixotropy, uye kugadzira nzvimbo yakakura yepurofiti yemakambani ekudhinda nekupenda. Purinda rekudhinda repurinda raimbova natural starch kana sodium alginate. Nekuda kwekuoma kwepurinda remuchina wekugadzira uye mutengo wakakwira wesodium alginate, inotsiviwa zvishoma nezvishoma nepurinda reacrylic nekupenda.
2. Pendi inobva mumvura
Basa guru rependi nderekushongedza nekuchengetedza chinhu chakaputirwa. Kuwedzera kwakakodzera kwechinhu chinopinzwa kunogona kushandura zvinobudirira hunhu hwemvura hwechinopinzwa, kuitira kuti chive nethixotropy, kuitira kuti chipe chisimbiso chakanaka chekuchengetera uye hunhu hwekushandisa. Chinhu chinopinzwa chakanaka chinofanira kusangana nezvinodiwa zvinotevera: kuvandudza viscosity yejira panguva yekuchengetera, kudzivirira kuparadzaniswa kwejira, kuderedza viscosity panguva yekupenda nekukurumidza, kuvandudza viscosity yefirimu rekupinzwa mushure mekupenda, kudzivirira kuitika kwechiitiko chekurembera kwemvura, nezvimwewo. Zvinhu zvinopinzwa zvechinyakare zvinowanzoshandisa mapolymer anonyungudika mumvura, akadai sehydroxyethyl cellulose (HEC), polymer mu cellulose derivatives. Data reSEM rinoratidza kuti chinhu chinopinzwa chepolymer chinogonawo kudzora kuchengetwa kwemvura panguva yekuputirwa kwezvigadzirwa zvepepa, uye kuvapo kwechinhu chinopinzwa kunogona kuita kuti pamusoro pepepa rakaputirwa pave pakanaka uye pakaenzana. Kunyanya, chinhu chinopinzwa che emulsion (HASE) chine simba rakanaka rekudzivirira kupararira uye chinogona kushandiswa pamwe chete nedzimwe mhando dzechinhu chinopinzwa pakupisa zvakanyanya kushata kwepamusoro kwepepa rekupinzwa.
3: Chikafu
Kusvika pari zvino, kune mhando dzinopfuura makumi mana dzezvinhu zvinosimbisa chikafu zvinoshandiswa muindasitiri yechikafu pasi rose, izvo zvinonyanya kushandiswa kuvandudza nekugadzirisa hunhu hwechikafu, kuwedzera kunaka kwechikafu, kupa chikafu kuravira kwakapfava, uye kuita basa mukukora, kudzikamisa, kuita homogenizing, emulsifying gel, masking, kugadzirisa kuravira, kuwedzera kunaka, uye kutapira. Kune mhando dzakawanda dzezvinosimbisa, izvo zvakakamurwa kuita synthesis yechisikigo neyemakemikari. Zvinosimbisa zvakasikwa zvinonyanya kuwanikwa kubva kumiti nemhuka, uye zvinosimbisa makemikari zvinosanganisira CMC-Na, propylene glycol alginate nezvimwewo.
4. Indasitiri yemakemikari yezuva nezuva
Parizvino, kune zvinhu zvinopfuudza zvinopfuura mazana maviri zvinoshandiswa muindasitiri yemakemikari ezuva nezuva, kunyanya munyu usingasanganisike, zvinhu zvinosanganisa masurfactants, mapolymer anonyungudika mumvura uye mafuta ane alcohols uye mafuta acids. Kana tichitaura nezvezvinodiwa zuva nezuva, inoshandiswa semvura yekugeza ndiro, iyo inogona kuita kuti chigadzirwa chive chakajeka, chakagadzikana, chakapfuma nefuro, chakapfava muruoko, chiri nyore kusuka, uye chinowanzoshandiswa muzvizoro, mushonga wemazino, nezvimwewo.
5. Zvimwe
Chinotisa ndiyo chinhu chikuru chinowedzera mumvura inopwanyika, iyo ine chekuita nekushanda kwemvura inopwanyika uye kubudirira kana kukundikana kwekuputika. Pamusoro pezvo, zvinotisa zvinoshandiswawo zvakanyanya mukurapa, kugadzira mapepa, zveceramics, kugadzirisa dehwe, kugadzira mapurasitiki nezvimwe zvinhu.
Nguva yekutumira: Gunyana-19-2023