Kugadzirira uye zvivakwa zvemuviri zve hydroxyprupyl strar ether

Hydroxypropyl Starch Ether (hpste) yakagadzirirwa kuburikidza nemakemikari kugadzirisa kunosanganisira kuunza hydroxpressl mapoka mumasumbu embeu. Iyo yekugadzirira nzira kazhinji inosanganisira matanho anotevera:

1. Kusarudzika kusarudzika: Yakakwirira-mhando starch, kazhinji inotorwa kubva kune zvinyorwa zvakadai sechibage, gorosi, mbatatisi, kana tapioca, inosarudzwa seyakatangira zvinhu. Sarudzo yeStar surime sosi inogona kukanganisa zvinhu zveiyo yekupedzisira hpste chigadzirwa.
2. Kugadzirira kwetsvina paste: Nhungamiro yakasarudzwa yakapararira mumvura kuti igadzire starch paste. Iyo Pasita inotsemurwa kune imwe tembiricha yekushongedza grousarti zights stranules, ichibvumira kushanda zviri nani uye kupinzwa kwevamwe kumashure mumatanho akagadziriswa ekugadzirisa.
3. Eteraifition Reaction: iyo gelatined starch paste inozoitwa neye propeylene oxide (PO) pamberi pechikamu chakadzorwa. Propylexe oxide inoreva neiyo hydroxyl mapoka (-OOH) pane iyo starch molecule, inokonzeresa mubatanidzwa we hydroxpremyl mapoka (-Och2ch (oh) ch3) kusvika kune strare backbone.
4. Kusarerekera uye kucheneswa: Mushure mekuchinja kwetsika, iyo musanganiswa wekuita inotsanangurwa kubvisa chero yakawandisa reagents kana inochera. Iyo inokonzeresa hydroxpropropyl strar ether inobva yanatswa kuburikidza nemaitiro akadai seyekufa, kugeza, uye kuomesa kubvisa tsvina uye nemakemikari akasara.
5. Saizi yekugadzirisa

Zvivakwa zvemuviri zve hydroxyprusyl strar ether chinogona kusiyana zvichienderana nezvinhu zvakaita seyero yekutsiva (ds) Zvimwe zviitiko zvakajairika zvehipste zvinosanganisira:

1. Chitarisiko: Hpste kazhinji chichena kune chena-chena poda neine yakanaka sizi yekugovera. Iyo yemukati morphology inogona kusiyana kubva kuomera kumhando isina kujairika zvichienderana nekugadzira maitiro.
2. Saizi yeChipenga: Saizi yehukuru hweHPSte inogona kubva kune mashoma micrometers kumakumi ematani, zvine chekuita nekupararira kwayo, uye solubility mune dzakasiyana siyana application.
3. Bulk density: Iyo yakawanda density yeHpste inokanganisa kuyerera kwayo, kubata hunhu, uye kurongedza zvinodiwa. Izvo zvinowanzo kuyerwa muGraims pa cubic centimeter (g / cm³) kana kilograph) per liter (kg / l).
4. Solubility: Hpste haina kujekesa mumvura inotonhora asi inogona kupararira nekuzvimba mumvura inopisa, kuumba mazwi ekuvhara kana gels. Iyo Solubility uye hydration Properties yeHpste inogona kusiyana zvichienderana nezvinhu zvakaita seDS, zvinorema, uye tembiricha.
5. Viscosity: Hpste inoratidzira kuremedza uye rheological kudzora zvinhu mune masisitimu emvura, kufurira viscosity, kuyerera maitiro, uye kugadzikana kwekufungidzira. Iyo viscosity yeHPSte mhinduro dzinoenderana nezvinhu zvakadai sekusimbirira, tembiricha, uye shear rate.
6. Hydration chiyero: Iyo hydration chiyero cheHPSte chinoreva chiyero icho chinobvisa mvura uye chinopfura mvura yekuumba viscous mhinduro kana gels. Ichi chivakwa chakakosha mukushandisa iyo kukurumidza hydration uye kureruka kunodiwa.

Iyo yekugadzirira uye yemuviri zvivakwa zve hydroxpropyl strar ether inogadziriswa kuti isangane nezvayo application zvinodiwa uye maitiro ekuita, anowedzera kuwanda uye anokosha maindasitiri uye akasiyana maindasitiri uye mafambiro.