Polyanionic cellulose (PAC) ichokwadi polymer, yakakosha mumaindasitiri akasiyana, kunyanya mukuchera uye kuongorora mafuta. Kuti tinzwisise kukosha uye zvimiro zve polyanionic cellulose, ngatitangei kuongorora mukuumbwa kwayo, mashandisiro, uye zvazvinoreva muzvikamu zvakasiyana.
Pakati payo, polyanionic cellulose inotorwa kubva kune cellulose, inongoitika polima inowanikwa muchirimwa sero madziro. Cellulose pachayo i polysaccharide inoumbwa neglucose units akabatanidzwa pamwechete ne β(1→4) glycosidic bonds. Urongwa uhwu hunopa cellulose simba rayo uye kusimba, zvichiita kuti ive chinhu chakakosha chechimiro muzvirimwa. Nekudaro, izvo zvemukati zvimiro zve cellulose zvinogona kugadziridzwa uye kukwidziridzwa kuti zvienderane neakasiyana maindasitiri mashandisirwo, zvichitungamira mukuvandudzwa kwezvinobuda senge polyanionic cellulose.
Polyanionic cellulose inogadzirwa kuburikidza nekugadziriswa kwemakemikari ye cellulose, umo hydroxyl mapoka (-OH) aripo mu cellulose morekuru anotsiviwa necarboxymethyl (-CH2COOH) mapoka. Kugadziridzwa uku kunopa hunhu hweanionic kumusana we cellulose, zvichikonzera polima ine polyanionic zvimiro. Iyo dhigirii yekutsiva (DS) inotaridza huwandu hwecarboxymethyl kutsiva pane cellulose musana, ichipesvedzera iyo polymer yakazara zvimiro uye mashandisiro.
Imwe yeakanyanya kukosha mashandisirwo epolyanionic cellulose iri muindasitiri yemafuta negasi, kunyanya mumvura yekuchera. Mvura yekuchera, inowanzozivikanwa semadhaka, inoshandisa zvinangwa zvakasiyana panguva yekuchera, zvinosanganisira mafuta, kutonhora, uye kubvisa tsvina. Polyanionic cellulose inowedzerwa kune yekuchera zvinwiwa se viscosifier uye fluid kurasikirwa control agent.
Seviscosifier, polyanionic cellulose inopa rheological zvimiro kumvura yekuchera, ichiwedzera kugona kwavo kumisa kuchekwa kwekuchera uye kuchengetedza kugadzikana kwetsime. Iyo polymer yakakwira molecular huremu uye anionic chimiro inobvumira kuti igadzire network chimiro mukati memvura, ichiwedzera viscosity uye kudzivirira kudonha kana kugadzika kwezvakaoma. Uyezve, polyanionic cellulose inoratidza kushivirira kwemunyu kwakanakisa, zvichiita kuti ive yakakodzera kushandiswa munzvimbo dzakanyanya-munyu wekuchera zvakajairika mukuchera kumahombekombe.
Pamusoro pebasa rayo seviscosifier, polyanionic cellulose inoshanda seyemvura kurasikirwa inodzora mumiriri mukuchera zvinwiwa. Nekugadzira keke rakatetepa, risingapindiki resefa pamadziro etsime, iyo polymer inobatsira kudzikisira kurasikirwa kwemvura mukuumbwa, nekudaro kuchengetedza kwakaringana kudzora kudzvanywa uye kudzivirira kukuvara kwekuumbwa. Ichi chivakwa chakakosha pakugadzirisa kuchera uye kuderedza njodzi dzekushanda.
Kupfuura chikamu chemafuta negesi, polyanionic cellulose inowana mashandisirwo mune akasiyana mamwe maindasitiri, anosanganisira emishonga, chikafu, uye zvekuzora. Mukugadzirwa kwemishonga, inoshanda sebhainda, disintegrant, kana viscosity modifier mukugadzira piritsi uye nemuromo kumiswa. Muindasitiri yechikafu, polyanionic cellulose inoshandiswa seyakakora mumiriri, stabilizer, kana emulsifier muzvigadzirwa kubva kumasoso uye madhirezi kune zvigadzirwa zvemukaka uye zvinwiwa. Iyo biocompatibility uye isiri-chepfu hunhu inoita kuti ive yakakodzera kushandiswa mune zvekuchengetedza zvigadzirwa senge lotions, makirimu, uye shampoos, uko inoshanda seyakakora kana kumisa mumiriri.
Polyanionic cellulose inomira sepolymer inosiyana-siyana ine yakapararira maapplication mumaindasitiri akawanda. Hunhu hwayo hwakasiyana, hunobva mukugadziriswa kwe cellulose, hunoita kuti ive yakakosha muzvikamu zvakaita seoiri negesi, mishonga, chikafu, uye zvekuzora. Sezvo kutsvagisa uye kufambira mberi kwetekinoroji kuri kuenderera mberi, kushandiswa kwe polyanionic cellulose kunotarisirwa kuwedzera mberi, zvichibatsira mukuvandudza uye kushanda zvakanaka mundima dzakasiyana.
Nguva yekutumira: May-10-2024