Cellulose ether inoshandisa mune yakaoma yakasanganiswa motsi

Mhedzisiro yehuwandu hwehuwandu hwehuwandu hwevanhu vasina murume uye madhiri akasanganiswa mune yakaoma-yakavhenganiswa nekuchengetwa kwemvura uye kusvibiswa, kushandira mhepo, uye kusimba kwemotokari yakaoma-yakasanganiswa. Zviri nani pane ether imwe; Iyo nzira yekuvandudza yekushandiswa kweCellulose ether mune yakaoma-yakavhenganiswa motsi inodarika.

Mazwi Akakosha:cellulose ether; yakaoma-yakavhenganiswa dhaka; imwe chete ether; yakasanganiswa ether

Dhuma yetsika ine matambudziko akadai sekupaza nyore, kubuda ropa, kusvibiswa zvisina kunaka, kusvibiswa kwezvakatipoteredza, nezvimwe zvishoma nezvishoma kutsiviwa neakaoma-yakasanganiswa dhiri. Dry-yakavhenganiswa mongwe, zvakare inozivikanwa sePre-yakasanganiswa (yakaoma) mongororo yehupfumi, yakaoma powder dope Cellulose ether ane zvakanakisa zvivakwa zvakadai sekukakavara, kumiswa, kuumbwa kwemafirimu, kuchengetedza, kunyoroveswa, uye kushamwaridzana, uye kwakakosha mudhara mune yakaoma-yakavhenganiswa.

Iri pepa rinosuma zvakanakira, zvakashata uye nekuvandudza maitiro emasero enthth mukushandisa kweiyo yakaoma-yakasanganiswa dhiri.

1. Hunhu hwekuomeswa-hwakaoma

Maererano nezvinodiwa zvekuvaka, iyo yakaoma-yakavhenganiswa madhiri inogona kushandiswa mushure mekuyerwa nenzira kwayo uye yakasanganiswa mumusangano wekugadzira, uye wobva wasanganiswa nemvura panzvimbo yekuvaka maererano neyekuvaka mvura-simende. Kuenzaniswa neyechinyakare motokari, yakaoma-yakavhenganiswa motsi ine zviyero zvinotevera:①Yakanakisa mhando, yakaoma-yakavhenganiswa motsi inogadzirwa zvichienderana neyesainzi formula, yakakura-chiyero automation, yakabatanidzwa neyakafanirwa naAymixture kuti ive nechokwadi chekuti chigadzirwa chinogona kusangana nezvinodiwa zvakanaka;②Kusiyanisa kwakazara, kwakasiyana-siyana kwemamita kunogona kugadzirwa zvichienderana nezvinodiwa zvakasiyana;③Kuita kwakanaka kwekuita, zviri nyore kushandisa uye kutsvaira, kubvisa kukosha kwekunyorova kwekunyorova uye kutevera mvura yekuchengetedza;④Zviri nyore kushandisa, ingowedzera mvura uye kumutsa, zviri nyore kutakura uye kuchengeta, zvakanakira manejimendi ekuvaka;⑤Green uye dziviriro yezvakatipoteredza, hapana guruva pane yekuvaka nzvimbo, hapana maronda akasiyana-siyana ezvekushandisa, achideredza maitiro akapoteredzwa.⑥Hupfumi, yakaoma-yakasanganiswa motsi inodzivisa kushandiswa kwezvinhu zvisina musoro nekuda kwezvisikwa zvine musoro, uye zvakakodzera kumuchina wekuvaka kupotsa kutenderera kwekuvaka uye kuderedza mari yekuvaka.

Cellulose ether ihasha yakakosha yeiyo yakaoma-yakasanganiswa dhiri. Cellulose ether inogona kugadzira calcium yakagadzikana-silte-hydroxide (CSS) yakaomeswa nejecha uye simende yekuita zvinodiwa zvezvinyorwa zvepamusoro-soro.

2. Cellulose ether seAdmixture

Cellulose ether is a lolymer yakasarudzika mune iyo hydrogen maatomu pane hydroxyl boka muCellulose Chimiro chetura chakatsiviwa nemamwe mapoka. Type, huwandu uye kugoverwa kwemapoka akashata pane cellulose main cheni inosarudza mhando nechisikigo.

Iyo hydroxyl boka pane cellulose ether molecular cheni inogadzira intermolecular zvisungo zveokisijeni, izvo zvinogona kuvandudza kufanana uye kuzere kweiyo siment hydration; Wedzera kuwirirana kwerufu, chinja rheology uye kutarisirwa kwemutya; kuvandudza kupaza kupokana kwemutya; Kupinza mweya, kuvandudza kushanda kwerufu.

2.1 Kushandiswa kweCarboxyMethyl Cellelose

CarboxyMethylcellose (CMC) ndeye Ionic Water-Soluble single cellulose ether, uye munyu wayo weSodium unowanzoshandiswa. Yakachena CMC ine chena kana mukaka chena chena hupfu kana granules, dzinoshatisa uye isina kunaka. Iyo Main Zviratidzo kuyera mhando yeCMC idanho rekutsiva (DS) uye viscosity, transparistrarency uye kugadzikana kwemhinduro.

Mushure mekuwedzera cmc kune dhiri, ine pachena yekukakavara uye yekuchengetwa kwemvura, uye iyo inoshatisa inokanganisa inoenderana neyakaomesesa uremu uye degree rekutsiva. Mushure mekuwedzera cmc kwemaawa makumi mana nemasere, yakayerwa kuti mwero wekunyura kwemufananidzo wakadzikira. Iyo yakadzika iyo mvura yekutora mvura, yakakwira yekuchengetedza mvura. Iyo yekuchengetedza mvura yekuwedzera inowedzera nekuwedzera kweCMC yekuwedzera. Nekuda kweiyo mvura yakanaka yekuchengeta mari, inogona kuve nechokwadi chekuti iyo yakaoma-yakasanganiswa motsi musanganiswa haina kubuda ropa kana kusarudzika. Parizvino, CMC inonyanya kushandiswa seyenzi-yekuchera mumadutu mune madam

CMC ndeyekunyorwa kwechiwic uye ane zvakakwirira zvinodiwa paCA (OL) yeCMC haina kuremara; Iyo enzyme kuramba cmc haina kunaka.

2.2 Kushandiswa kweHydroxytHyl Celluloseuye hydroxyprupyl cellulose

HydroxytHyl Cellulose (HEC) uye hydroxyprusterl Cellulosel Cellulosel (HPC) haina-Ionic Water-solullo one cellin cell kurwisa munyu. Hec yakagadzikana kupisa; zvinyoro-nyoro mumvura inotonhora uye inopisa; Kana iyo pH kukosha iri 2-12, iyo viscosity inoshanduka zvishoma. HPC inonyudzwa mumvura pazasi makumi mana°C uye huwandu hukuru hwepolar sol sol. Iyo ine thermoplasticity uye nzvimbo yemusoro. Iyo yakakwira iyo degree rekutsiva, iyo yakadzika tembiricha yemvura umo HPC inogona kunyungudika.

Sezvo huwandu hwehesi yakawedzerwa kune inowedzera inowedzera, simba rinomanikidza, simba reChinoresera uye kupokana kwerudzi kuderera kwenguva, uye kuita kwacho kuchinjana kwenguva pfupi. Hec zvakare inokanganisa kugovera kwemapures mune dhaka. Mushure mekuwedzera HPC kuenda kuimba, iko kupokana kweguruva kwakaderera kwazvo, uye mvura inodiwa yakaderedzwa, nokudaro ichidzora mashandiro ekushanda kwemutya. Mukushandisa chaiko, HPC inofanira kushandiswa pamwe chete nePlasticzezer yekuvandudza mashandiro emota.

2.3 Kushandiswa kweMethyl Cellulose

Methylcellose (mc) is is-ionic single cellulose ether, iyo inogona kukurumidza kupararira nekuzvimba mumvura inopisa pa80-90°C, uye nyangamo nekukurumidza mushure mekutonhora. Mhinduro yemvura yeMC inogona kuumba gel. Paanotyisidzirwa, mc haivheneke mumvura kuti aumbe gel, uye paakadzorerwa, iyo gel inonyungudika. Ichi chiitiko chinokonzerwa zvachose. Mushure mekuwedzera mc kune dhiragi, iyo mvura yekuchengeta mvura iri pachena iri pachena. Kuchengetwa kwemvura kweMC kunoenderana nekwavo viscosity, degree rekutsiva, rakafanana, uye kuwedzera huwandu. Kuwedzera mc kunogona kuvandudza iyo anti-sagging pfuma yemadhaka; Kuvandudza iyo Lubricity uye Yakatambanudzirwa Zvikamu, Ita Kuti Mother Spother uye yakawanda yunifomu, mhedzisiro yekutsvaira uye inonyatsoita zvakanaka, uye kuita kwekushanda kwakavandudzwa.

Mari yeMC inowedzera ine pesvedzero huru pane dhaka. Kana iyo MC zvemukati yakakura kupfuura 2%, simba rerudzi ruri kuderedzwa kusvika hafu yeiyo yekutanga. Iyo yekuchengetwa kwemvura inowedzera nekuwedzera kweiyo viscosity yeMC, asi kana visikopa yeMC, iyo soluusity yeMC inodzora, kuchengetwa kwemvura hakuchinje zvakawanda, uye kuita kwekuvaka kunoderera.

2.4 Kushandiswa kwehydroxythylmethylsellose uye hydroxypropylmethcylosellose

Imwe ether ine zvakashata zvekuparadzaniswa zvisina kunaka, kuomesa uye nekukurumidza kuomesa kana huwandu hwakawedzerwa idiki, uye hwakawandisa mumoto kana huwandu hwakawedzera, uye kuomarara kwekongiri; Naizvozvo, kushanda, simba rekumanikidza, uye kushanduka-shanduka simba rekuita harina kunaka. Vakasanganiswa vaTyit vanokwanisa kukurira zvikanganiso zveanababa vasina kuroora kune imwe nhanho; Mari inowedzerwa haina kuderera pane iyo yevana vasina mumwe.

HydroxyThylmethylcylsellose (Hemc) uye hydroxypresslmethelose (HPMC) is nonition yakasanganiswa cellulose macoulose Cellucose Cellulose Cellulose

Kuonekwa kwehemc kuchena, kubva-chena poda kana granule, kusanzwisisika uye kusavapo, hygroscopic, kusaziva mumvura inopisa. Iko kushungurudzika hakuna kukanganiswa nePP kukosha (kwakafanana ne mc), asi nekuda kwekuwedzera kwehydroxylsl mapoka, hemc ine mhodzi yemunyu kupfuura mc, iri nyore kunyungudika mumvura, uye ine tembiricha yakakwirira yekudziya. Hemc ine yakasimba mvura yekuchengetedza kupfuura MC; Kugadzikana kwe viscossity, kuparadzira, uye kupararira kwakasimba kupfuura hec.

HPMC ine chena kana kubva-chena poda, isiri-ine chepfu, isina kana isina kunaka. Iko kuita kweHPMC pamwe nezvirevo zvakasiyana zvakasiyana. HPMC inodonha mumvura inotonhora kuti ive yakajeka kana zvishoma turbid colodal solution, nyura mune mamwe organic soles, uye zvakare zvine simba mumvura. Yakasanganiswa sol sol sol sol sol sol sol sol solhanol mune yakakodzera chikamu, mumvura. Iyo mhinduro yemvura ine hunhu hwebasa repamusoro, rakakwira transparcy uye rakagadzikana kuita. Kupararira kweHPMC mumvura hakusi kwakakanganiswa naPH. Solubility inosiyana neViscosity, iyo yakaderera viscosity, yakakura solubility. Nekuderera kweiyo nzira yemukati muHPMC mamorekuru, iyo Gel Point yeHPMC inowedzera, iyo solublity yemvura inoderera, uye chiitiko chePasi chinoderera. Pamusoro pehunhu hwakajairika hwemamwe mheremalose eva, Hpmc zvakare kuramba kwakanaka kwemunyu, kugadzikana kwevanhurume, kuparadzaniswa kukuru, nekuparadzaniswa kukuru.

Iyo huru inoshanda yeHEMC uye HPMC mune yakaoma-yakavhenganiswa motokari iri seinotevera.①Kuchengeta kwemvura kwakanaka. Hemc uye HPMC inogona kuve nechokwadi chekuti durari harizokonzeresa matambudziko senge sanding, poda nekuderedza kwechigadzirwa nekuda kwekushaikwa kwemvura uye isina kukwana yeiyo hydration. Kuvandudza Uwandu, Kubata uye Chigadzirwa Kuomesa. Kana huwandu hweHPMC yakawedzerwa yakakura kupfuura 0.08%, kushushikana kwechibereko uye plastiki viscosity yerudzi zvakare kuwedzera nehuwandu hwehuwandu hweHPMC.②Semhepo-yemhepo yekupinda mumiririri. Kana zvirimo zveHEMC uye HPMC iri 0.5%, gasi gasi ndiyo yakakura, inenge 55%. Simba rinosindimukira simba uye simba rekumanikidza remutya.③Kuvandudza Kudzorera. Kuwedzerwa kweHEMC uye HPMC inofambisa kadhi rekutetepa-rakatetepa dorari uye kuveza kwekuparadza dhaka.

Hemc uye HPMC inogona kunonoka iyo hydration yeMortares, DS ndiyo yakakosha chinhu chinokanganisa hydration, uye maitiro ezvekunonoka kwe hydration yakakura kupfuura iyo yeiyo hydroxytl uye hydroxyprupropyl zvemukati.

Izvo zvinofanirwa kucherechedzwa kuti cellulose ether ine maviri maitiro pakuita kwehudyu, uye zvinogona kutora basa rakanaka kana ikashandiswa nemazvo, asi ichave nemhedzisiro yakaipa kana ikashandiswa zvisina kunaka. Iko kuita kweiyo yakaoma-yakavhenganiswa mota ndeyekutanga zvine chekuita nekushomeka kweCellulose Ether, uye iyo inoshanda cellulose ether inoenderana nezvinhu zvakadai uye kurongeka kwekuwedzera. Mune zvinoshanda zvinoshanda, imwe chete mhando yemheremellose ether inogona kusarudzwa, kana mhando dzakasiyana dze cellulose ether inogona kushandiswa musanganiswa.

3. Outlook

Iko kukurumidza kukura kweiyo yakaoma-yakavhenganiswa mert inopa mikana uye matambudziko ekuvandudza uye kushandiswa kwe cellulose ether. Vanotsvaga uye vaongorori vanofanirwa kutora mukana wekuvandudza mwero wavo wehunyanzvi, uye shanda nesimba kuti uwedzere marudzi uye kugadzirisa kugadzikana kwechigadzirwa. Paunenge uchisangana nezvinodiwa zvekushandiswa kwekusasanganiswa-wakasanganiswa muto, hwakawana kusvetuka muCellulose etatu indasitiri.