1. hygroscopicity
Carboxymethylcellulose sodium CMC yana da shayar ruwa iri ɗaya kamar sauran manne masu narkewar ruwa.Ma'auni na zafi yana ƙaruwa tare da karuwar zafi kuma yana raguwa tare da karuwar zafin jiki.Mafi girman DS, mafi girman yanayin iska, kuma samfurin yana da ƙarfi da sha ruwa.Idan an buɗe jakar kuma an sanya shi cikin iska tare da abun ciki mai zafi na ɗan lokaci, ɗanɗanon sa zai iya kaiwa 20%.Lokacin da abun ciki na ruwa ya kasance 15%, foda na samfurin ba zai canza ba.Lokacin da abun cikin ruwa ya kai kashi 20%, wasu ɓangarorin za su taru su manne da juna, suna rage ruwa na foda.CMC zai karu da nauyi bayan ya sha danshi, don haka dole ne a sanya wasu kayan da ba a cika su ba a cikin kwantena masu hana iska ko adana su a wuri mai bushe.
2. Carboxymethyl Cellulose Sodium CMC Narkar da
Carboxymethylcellulose sodium CMC, kamar sauran polymers masu narkewar ruwa, yana nuna kumburi kafin narkewa.Lokacin da babban adadin carboxymethylcellulose sodium CMC bayani yana buƙatar shirya, idan kowane barbashi ya kumbura iri ɗaya, samfurin yana narkewa da sauri.Idan an jefa samfurin a cikin ruwa da sauri kuma ya tsaya a kan toshe, za a samar da "idon kifi".Mai zuwa yana bayyana hanyar narkar da CMC da sauri: a hankali sanya CMC cikin ruwa a ƙarƙashin matsakaicin motsawa;An riga an tarwatsa CMC tare da sauran ƙarfi mai narkewa (kamar ethanol, glycerin), sannan a hankali ƙara ruwa a ƙarƙashin matsakaicin motsawa;Idan ana buƙatar ƙara wasu abubuwan da aka yi da foda a cikin maganin, da farko a haxa abubuwan da ake da su da kuma CMC foda, sa'an nan kuma ƙara ruwa don narke;don dacewa da masu amfani, ana ƙaddamar da granule nan take da foda nan take.
3. Rheology na Sodium Carboxymethyl Cellulose Magani CMC
Sodium carboxymethyl cellulose CMC bayani ne wanda ba Newtonian ruwa, wanda ya nuna low danko a high gudun, wato, saboda danko darajar sodium carboxymethyl cellulose CMC dogara a kan ma'auni yanayi, don haka "bayani danko" da ake amfani da su bayyana ta. yanayi.
An nuna akan zane mai lanƙwasa rheological: Yanayin ruwan da ba na Newtonian ba shine dangantakar dake tsakanin juzu'i (gudun juyawa akan viscometer) da ƙarfin ƙarfi (ƙarfin viscometer) ba alaƙar layi ba ce, amma lanƙwasa.
Carboxymethyl cellulose sodium CMC bayani ne mai pseudoplastic ruwa.Lokacin auna danko, saurin jujjuyawar saurin juyi, ƙarami ma'aunin ma'aunin ma'auni, wanda shine abin da ake kira tasirin thinning mai ƙarfi.
4. Carboxymethyl Cellulose sodium CMC danko
1) Danko da matsakaicin digiri na polymerization
Dankowar sodium carboxymethylcellulose CMC bayani ya dogara ne akan matsakaicin digiri na polymerization na sarƙoƙin cellulose da ke kafa tsarin.Akwai kusan alaƙar layi ɗaya tsakanin danko da matsakaicin digiri na polymerization.
2) Dankowa da maida hankali
Dangantaka tsakanin danko da maida hankali na wasu nau'ikan sodium carboxymethylcellulose CMC.Dankowa da maida hankali kusan logarithmic ne.Sodium carboxymethyl cellulose CMC bayani na iya samar da quite high danko a low taro, wannan halayyar sa CMC za a iya amfani da matsayin mai kyau thickener a cikin aikace-aikace.
3) Dankowa da zafin jiki
A danko na carboxymethylcellulose sodium CMC ruwa bayani ragewa tare da karuwa da zazzabi, ko da kuwa na irin da taro, da Trend na bayani danko da zafin jiki kwana kwana ne m guda.
4) Danko da pH
Lokacin da pH ya kasance 7-9, danko na CMC bayani ya kai iyakarsa kuma yana da kwanciyar hankali.Dankowar sodium carboxymethylpyramid ba zai canza sosai a cikin kewayon pH na 5-10 ba.CMC yana narkewa da sauri a cikin yanayin alkaline fiye da yanayin tsaka tsaki.Lokacin pH> 10, zai haifar da CMC don ragewa da rage danko.Lokacin da aka ƙara acid zuwa maganin CMC, kwanciyar hankali na maganin yana raguwa saboda H + a cikin maganin ya maye gurbin Na + akan sarkar kwayoyin.A cikin maganin acid mai ƙarfi (pH = 3.0-4.0) Semi-sol ya fara farawa, wanda ke rage danko na maganin.Lokacin da pH <3.0, CMC ya fara zama cikakke a cikin ruwa kuma yana samar da CMC acid.
CMC tare da babban matsayi na maye gurbin ya fi karfi a cikin acid da juriya na alkali fiye da CMC tare da ƙananan DS;CMC tare da ƙananan danko ya fi ƙarfin acid da juriya na alkali fiye da CMC tare da babban danko.
Lokacin aikawa: Janairu-28-2023