Tirohanga
Ko te Cellulose he waerau maori i titoa mai i nga waeine β-glucose anhydrous, a e toru ona roopu hydroxyl ki ia mowhiti turanga.Ma te whakarereketanga matū o te cellulose, ka taea te whakaputa i nga momo pärönaki cellulose, ko tëtahi o aua mea ko te cellulose ether.Ko te Ether Cellulose he huinga polymer me te hanganga ether i ahu mai i te cellulose, tae atu ki te methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, me etahi atu.I te nuinga o te wa ka puta enei hua ma te tauhohe i te cellulose alkali ki te monochloroalkane, ethylene oxide, propylene oxide, waikawa monochloroacetic ranei.Ko te hua o te cellulose ether he tino pai te wairewa wai, te kaha matotoru, me nga taonga hanga kiriata, ka whakamahia nuitia i roto i nga umanga penei i te hangahanga, te rongoa, te kai, me te whakapaipai.Ko te Cellulose ether he mea whakahou, he mea koiora, he mea kore-paitini, na reira he mea rongonui ki nga polymers waihanga.
Mahinga me nga ahuatanga
1. Āhuatanga Āhuatanga
Ko te cellulose ether he paura ma, he hongi, he kirikiri ka ngawari ki te ngongo i te makuku, ka hanga he koroi mau, pokarekare, maramara ina rewa ki te wai.
2. Hanga Whitiāhua me te Adhesion
Ko te whakarerekētanga matū o te cellulose ki te whakaputa i te cellulose ether ka tino pa ki ona ahuatanga, tae atu ki te whakarewatanga, te kaha ki te hanga kiriata, te kaha here, me te aukati tote.Ko enei ahuatanga ko te cellulose ether he polymer tino hiahia me te kaha miihini pai, te ngawari, te aukati wera, me te aukati makariri.I tua atu, he pai te whakaatu i te hototahitanga ki nga momo kapia me nga raima, e pai ana mo te whakamahi ki te hanga kirihou, kiriata, waituhi, whakapiri, latex, me nga taonga paninga tarukino.Na ona taonga maha, kua noho te cellulose ether hei taonga nui i roto i te umanga whakangao, e pai ake ai te mahi, te pumau, me te mau tonu ki te tini o nga hua.Ko te mutunga mai, he maha nga tono i roto i nga momo mara, tae atu ki nga rongoa, paninga, kakano, hanga, me nga umanga kai, me etahi atu.
3. Wairewa
Ko te whakarewatanga o nga etera cellulose penei i te methylcellulose, methyl hydroxyethyl cellulose, hydroxyethyl cellulose, me te konutai carboxymethyl hydroxyethyl cellulose he rereke i runga i te pāmahana me te whakarewa i whakamahia.Ko te Methylcellulose me te methyl hydroxyethyl cellulose he wairewa i roto i te wai matao me etahi whakarewa pararopi engari ka tohe ina whakamahana, me te methylcellulose e rere ana i te 45-60°C me te methyl hydroxyethyl cellulose i konatunatua ki te 65-80°C.Heoi ano, ka memeha ano nga rerenga i te wa e whakahekehia ana te pāmahana.I tetahi atu taha, ko te hydroxyethyl cellulose me te konutai carboxymethyl hydroxyethyl cellulose he wai-wairewa ahakoa te pāmahana engari karekau i roto i nga whakarewa pararopi.He rereke nga ahuatanga o te wairewa me te wairere o enei cellulose ethers e pai ana mo nga momo tono i roto i nga umanga penei i te kirihou, kiriata, paninga, me te whakapiri.
4. Whakamatotoru
Ka memeha ana te etera cellulose ki te wai, ka hanga he otinga colloidal tona pokey e awehia ana e te tohu o te polymerization o te cellulose ether.Kei roto i te wairewa nga macromolecules hydrated e whakaatu ana i te whanonga ehara i te Newtonian, ara, ka huri te rere o te rere i runga i te kaha kutikuti.Na te hanganga macromolecular, ka tere te piki o te pokey o te otinga ki te kukū, engari ka heke tere i te pikinga o te pāmahana.Ko te pokey o nga otinga cellulose ether ka awehia e te pH, te kaha katote, me te noho o etahi atu matū.Ko enei ahuatanga ahurei o te cellulose ether e whai hua ana ki nga momo tono penei i te whakapiri, te paninga, te whakapaipai, me nga hua kai.
Taupānga
1. Ahumahi hinuhinu
Ko te konutai carboxymethyl cellulose (NaCMC) he ether cellulose me te whānuitanga o nga tono i roto i te tukanga tango hinu.Ko te tino pai o te piki o te pokey me te whakaheke i te wai, he mea rongonui ki te keri wai, ki te whakaki i nga wai, me nga wai pakaru.Ina koa, kua whakaatuhia he hua pai ki te whakapai ake i te whakaora hinu.Ka taea e NaCMC te aukati i nga momo parahanga tote wairewa me te whakanui ake i te whakaora hinu ma te whakaiti i te mate o te wai, me te kaha o te tote me te kaha-nui ake o te kaha ki te whakarite i nga wai keri mo te wai hou, te wai moana, me te wai tote kukū.
Ko te konutai carboxymethyl hydroxypropyl cellulose (NaCMHPC) me te konutai carboxymethyl hydroxyethyl cellulose (NaCMHEC) e rua nga hua o te cellulose ether me te tere o te slurrying, te pai o te mahi anti-konupora, me te pai o te kaha ki te whakanui ake i te kirikiri, he pai rawa atu hei kowhiringa hei rongoa mo te keri paru me nga taonga mo te whakarite wai oti.Ka whakaatuhia e ratou te kaha ki te whakanui ake i te kaha me te whakaheke i te wai ki te hydroxyethyl cellulose, me to raatau kaha ki te hanga ki roto i nga wai keri o nga momo kiato i raro i te taumaha o te konupūmā pūhaumāota ka waiho hei taapiri mo te whakanui ake i te mahi hinu.
Ko te Hydroxyethyl cellulose (HEC) tetahi o nga hua o te cellulose e whakamahia ana hei whakamarumaru paru me te whakapumau i roto i te keri, te whakaoti me te mahi sima.Ka whakatauritea ki te konutai carboxymethyl cellulose me te kapia guar, he kaha te whakatārewatanga o te onepu HEC, te kaha o te tote, te pai o te wera wera, te iti o te whakakotahitanga, te iti o te mate wai, me te paraka pakaru gel.Kua whakamahia whānuitia te HEC na te pai o te whakakaha, te iti o te toenga, me etahi atu taonga.I roto i te katoa, ko nga ether cellulose pera i te NaCMC, NaCMHPC, NaCMHEC, me te HEC e whai waahi nui ana ki te mahi tango hinu me te whakaatu i te kaha nui ki te whakapai ake i te whakaora hinu.
2. Hangahanga me te Ahumahi Peita
Ko te konutai carboxymethyl cellulose he taapiri rawa mo te hanga whare ka taea te whakamahi hei parepare, hei kaikawe pupuri wai, hei whakakaha me te here mo te hanga raima me te raima moata.Ka taea hoki te whakamahi hei dispersant, te wai pupuri wai me te thickener mo te raima, moata me nga rauemi paparite whenua.Ka taea e te whakaurunga masonry motuhake me te raima moata i hangaia ki te carboxymethyl cellulose te whakapai ake i te mahi, te pupuri wai me te aukati kapiti, te karo i te pakaru me te kore i roto i te pakitara poraka.I tua atu, ka taea te whakamahi i te methyl cellulose ki te hanga i nga taonga whakapaipai mata o te whare taiao mo nga pakitara teitei me nga papa taera kohatu, me te whakapaipai o te mata o nga pou me nga tohu.
3. Ahumahi matū o ia ra
Ko te konutai carboxymethyl cellulose he viscosifier whakapumau ka taea te whakamahi i roto i nga momo hua.I roto i nga hua whakapiri kei roto i nga rawa paura totoka, he mea nui ki te whakamararatanga me te whakapumautanga whakatārewatanga.Mo nga mea whakapaipai wai, emulsion ranei, ka mahi hei maatete, whakamarara, me te homogenizing.Ka taea hoki e tenei pärönaki cellulose te mahi hei whakaahuru whakaehunga, he hinu me te shampoo whakakao me te whakapumau, te toothpaste adhesive stabilizer, me te hopi horoi me te aporo anti-stain.Ko te konutai carboxymethyl hydroxypropyl cellulose, he momo cellulose ether, e whakamahia whanuitia ana hei whakapumau toothpaste na ona ahuatanga thixotropic, e awhina ana ki te pupuri i te ahua me te riterite o te toothpaste.He atete ki te tote me te waikawa ano hoki tenei pärönaki, na te mea hei whakakaha pai i roto i nga hopi horoi me nga maatete aukati.Ko te konutai carboxymethyl cellulose te nuinga o te wa e whakamahia ana hei whakamarara paru, hei whakamaroke, hei whakamararatanga i roto i te hanga o te paura horoi me te horoi wai.
4. Ahumahi rongoa me te Kai
I roto i te umanga ho'oraa, Yibang hydroxypropyl carboxymethylcellulose (HPMC) e whakamahia whanuitia ana hei rongoa rongoa mo te tuku rongoa a-waha me nga whakaritenga tuku pumau.Ko te mahi hei taonga whakaroa hei whakahaere i te tukunga o nga raau taero, me te mea hei paninga hei whakaroa i te tukunga o nga waihanga.Ko te Methyl carboxymethyl cellulose me te ethyl carboxymethyl cellulose e whakamahia nuitia ana hei hanga papa me nga kapene, hei whakakakahu ranei i nga papa pani huka.I roto i te umanga kai, ko nga etero cellulose te utu utu he mea whakakoi, he whakapumau, he whakauru, he kai pupuri wai me nga miihini whakakoka i roto i nga momo kai.Ko te Methylcellulose me te hydroxypropylmethylcellulose e kiia ana he mokowhiti noa, he haumaru mo te kai.Ko te carboxymethylcellulose tino parakore ka taea te taapiri atu ki nga hua kai, tae atu ki te miraka me te kirīmi, ki nga mea kakara, ki te tami, ki te tiēre, ki te kai kēne, ki te tirikara tepu, me nga inu.I tua atu, ka taea te whakamahi i te carboxymethyl cellulose ki te kawe me te rokiroki o nga hua hou hei takai kirihou, he pai te pupuri hou, he iti te poke, he kore kino, he ngawari te hanga miihini.
5. Nga Rawa Mahi Matapihi me te Hiko
Ko te etera cellulose parakore-nui me te waikawa pai me te tote he mahi hei whakapumau i te electrolyte thickening, e whakarato ana i nga taonga colloidal pumau mo nga pākahiko alkaline me te zinc-konupora.Ko etahi etera cellulose e whakaatu ana i te tioata wai werawera, penei i te hydroxypropyl cellulose acetate, e hanga ana i nga tioata wai cholesteric i raro i te 164°C.
Tohutoro Matua
● Papakupu o nga matū matū.
● Nga ahuatanga, te whakarite me te tono ahumahi o te cellulose ether.
● Tūnga Quo me te ia whanaketanga o Cellulose Ether Market.
