Focus on Cellulose ethers

CMC Hua Whakataki mo te Whakapiri Reactive Printing

1. Konutai Carboxymethyl Cellulose
Ko te whakapiri tā tauhohenga he pärönaki me te hanganga ether i riro mai i te whakarereke matū o te cellulose taiao.He kāpia wairewa-wai ka taea te memeha ki te wai matao me te wai wera.Ko tana wairewa wai nga mahi o te honohono, te whakapakeke, te whakamarara, te whakatarewa me te whakapumau.

He hua o te konutai carboxymethyl cellulose me te kaha o te etherification.Ko te tukanga motuhake ka whakakapia tona roopu hydroxyl tuatahi, kia kore ai e tauhohe nga waikano tauhohenga.

Ka rite ki te thickener o te whakapiri tā, ka taea e te whakapiri tā reactive whakaū i te pokey, te whakapai ake i te wai o te whakapiri, te whakarei ake i te kaha hydrophilic o te waikano, hanga te kākahu tae me te whakaiti i te rerekētanga tae;i te wa ano, i roto i te tukanga horoi i muri i te tuhi me te tae, ka nui ake te tere o te horoi, Ka ngawari te papanga ki te pa.

2. Te whakatairite i nga ahuatanga o te whakapiri i te reactive tā me te konutai alginate
2.1 Reiti whakapiri

Ka whakatauritea ki te konutai alginate, he nui ake te potata o te whakapiri i te reactive, ahakoa ka whakamahia anake, ka whakakotahihia ranei me etahi atu kaitao, ka taea te whakaiti i te utu o te whakapiri;i te nuinga o te wa, ko te whakapiri i te kaha o te whakapiri Ko te inenga ko te 60-65% anake o te konutai alginate.

2.2 Tae hua me te ahua

Ko te hua o te tae o te whakapiri ta kua rite ki te whakapiri i te reactive tā hei whakamatotoru he rite ki te konutai alginate, a ka ngawari te papanga i muri i te whakakore, he rite ki nga hua whakapiri konutai alginate.

2.3 Whakapiri pumau

Ko te konutai alginate he colloid maori, he iti te manawanui ki nga microorganisms, he poto te wa rokiroki o te whakapiri tae, he ngawari ki te pahua.He tino pai ake te pumau o nga hua konutai carboxymethyl cellulose ki tera o te konutai alginate.Kua pai ake nga hua whakapiri mo te reactive e te tukanga motuhake, a he pai ake to ratou parenga electrolyte i nga hua konutai carboxymethyl cellulose noa.I te wa ano, he pai te hototahi ki nga awhina matū me nga waikano, a kaore i te ngawari ki te pirau me te kino i te wa e rokiroki ana.He pai ake te pumau matū i te konutai alginate.

2.4 Rheology (tautoko)

Ko te konutai alginate me te CMC he wai pseudoplastic, engari ko te konutai alginate he iti te pokey hanganga me te uara PVI teitei, no reira kaore i te pai mo te panui mata a tawhio noa (flat), ina koa te taarua mata teitei;Ko nga hua whakapiri taapiri he nui te kaha o te hanganga, he 0.5 te uara PVI, he ngawari ki te tuhi i nga tauira maamaa me nga raina.Ka taea e te whakakotahitanga o te konutai alginate me te whakapiri taapiri kaha te whakatutuki i nga whakaritenga rheological o te whakapiri ta


Wā tuku: Apr-03-2023
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