Ndeupi musiyano uripo pakati pekuita kwemethyl cellulose ether uye lignin fiber

Ndeupi musiyano uripo pakati pekuita kwemethyl cellulose ether uye lignin fiber

Mhinduro: Kuenzanisa kwekuita pakati pemethyl cellulose ether uye lignin fiber inoratidzwa mutafura

 Kuenzanisa kwekuita pakati pemethyl cellulose ether uye lignin fiber

Chii chinofanira kutariswa kana uchishandisa methyl cellulose uye carboxymethyl cellulose?

Mhinduro: (1) Paunenge uchishandisa mvura inopisa kunyungudutsa cellulose, inofanira kunyatsotonhodzwa isati yashandiswa. Tembiricha inodiwa kuti iparadzwe zvachose uye kujeka kwakakodzera kunoenderana nerudzi rwe cellulose.

(2) Tembiricha inodiwa kuti uwane viscosity yakakwana

Carboxymethylcellulose≤25℃, methylcellulose≤20℃

(3) Zvishoma nezvishoma uye zvakaenzana sieve cellulose mumvura, uye fambisa kusvikira zvikamu zvose zvanyorova, uye zvino funganya kusvikira mhinduro yose ye cellulose yakanyatsojeka uye yakajeka. Usadira mvura zvakananga mu cellulose, uye usawedzera zvakananga huwandu hwakawanda hweselulosi iyo yakanyoroveswa uye yakaumbwa kuita mapundu kana mabhora mumudziyo.

(4) Pamberi peiyo cellulose poda yakanyoroveswa nemvura, usawedzera alkaline zvinhu kune musanganiswa, asi mushure mekupararira uye kunyura, shoma shoma yealkaline aqueous solution (pH8 ~ 10) inogona kuwedzerwa kukurumidza kupera. Izvo zvinogona kushandiswa ndezvi: sodium hydroxide aqueous solution, sodium carbonate aqueous solution, sodium bicarbonate aqueous solution, lime mvura, ammonia mvura uye organic ammonia, nezvimwewo.

(5) Iyo yepamusoro-yakagadziriswa cellulose ether ine dispersibility iri nani mumvura inotonhora. Kana iyo yakawedzerwa zvakananga kune alkaline solution, kurapwa kwepamusoro kuchakundikana uye kunokonzera condensation, saka kunyanya kutarisirwa kunofanira kutorwa.

Chii chinonzi methylcellulose?

Mhinduro: (1) Kana inopisa pamusoro pe200 ° C, inonyunguduka uye inoparara. Dota rinenge rinenge 0.5% kana rapiswa, uye harina kwarakarerekera kana raitwa slurry nemvura. Kana iri viscosity yayo, zvinoenderana nehuwandu hwepolymerization.

(2) Solubility mumvura inopesana netembiricha, tembiricha yakanyanya ine yakaderera solubility, yakaderera tembiricha ine yakanyanya solubility.

(3) Inogona kunyungudutswa mumusanganiswa wemvura uye organic solvents, zvakadai semethanol, ethanol, ethylene glycol, glycerin uye acetone.

(4) Kana paine simbi yemunyu kana organic electrolytes mune ayo aqueous solution, mhinduro inogona kuramba yakagadzikana. Apo electrolyte yakawedzerwa muhuwandu hwakawanda, gel kana kunaya kuchaitika.

(5)Ine chiitiko chepamusoro. Nekuda kwekuvapo kwe hydrophilic uye hydrophobic mapoka mumamorekuru ayo, ine mabasa emulsification, inodzivirira colloid uye kugadzikana kwechikamu.

(6)Kupisa. Kana iyo aqueous solution inokwira kune imwe tembiricha (pamusoro petembiricha yegel), inova turbid kusvika yaita gels kana kudonha, zvichiita kuti mhinduro irasikirwe neviscosity yayo, asi inogona kudzokera kune yekutanga mamiriro mushure mekutonhora. Tembiricha iyo gelation uye kunaya kwemvura inoitika zvinoenderana nerudzi rwechigadzirwa, kusungirirwa kwemhinduro, uye mwero wekupisa.

(7) pH yakagadzikana. Iyo viscosity yeaqueous solution haibatike nyore neasidhi uye alkali. Mushure mekuwedzera huwandu hwealkali, zvisinei nekupisa kwakanyanya kana kuderera kwekushisa, hazvizokonzeri kuora kana kupatsanurwa kweketani.

(8) Mushure mekunge mhinduro yaoma pamusoro, inogona kuumba firimu rakajeka, rakaoma uye rakasununguka, rinopesana nemafuta ehupenyu, mafuta nemafuta akasiyana-siyana. Iyo haishanduke yero kana fluffy kana yaiswa pachiedza, uye inogona kunyungudika zvakare mumvura. Kana formaldehyde yakawedzerwa kune mhinduro kana mushure-yakagadziriswa ne formaldehyde, iyo firimu haina kunyungudika mumvura, asi inogona kuwedzera zvishoma.

(9)Kukora. Inogona kukora mvura uye isiri-aqueous masisitimu, uye ine yakanaka anti-sag performance.

(10)Viscosity. Mhinduro yaro ine mvura ine kubatana kwakasimba, iyo inogona kuvandudza kubatana kwesimende, gypsum, pendi, pigment, Wallpaper, nezvimwe.

(11)Kumiswa. Inogona kushandiswa kudzora coagulation uye kunaya kwezvimedu zvakasimba.

(12) Chengetedza iyo colloid uye uvandudze kugadzikana kweiyo colloid. Inogona kudzivirira kuunganidzwa uye kubatana kwemadonhwe uye pigment, uye zvinobudirira kudzivirira kunaya kwemvura.

(13)kuchengeta mvura. Iyo aqueous solution ine high viscosity. Kana yakawedzerwa kune dhaka, inogona kuchengetedza huwandu hwemvura, iyo inobudirira inodzivirira kubatwa kwemvura yakawandisa ne substrate (yakadai sezvidhinha, konkrete, nezvimwewo) uye inoderedza chiyero chekubuda kwemvura.

(14) Kufanana nemamwe macolloidal mhinduro, inosimbiswa ne tannins, mapuroteni precipitants, silicates, carbonates, nezvimwe.

(15) Inogona kusanganiswa ne carboxymethyl cellulose mune chero chikamu kuti uwane yakakosha mhedzisiro.

(16)Kuita kwekuchengetedza kwemhinduro kwakanaka. Kana ichikwanisa kuchengetwa yakachena panguva yekugadzirira uye kuchengetedza, inogona kuchengetwa kwemavhiki akawanda pasina kuora.

CHERECHEDZA: Methylcellulose haisi yekukura kwema microorganisms, asi kana yakasvibiswa ne microorganisms, haizodziviriri kuwedzera.Kana mhinduro yacho inopisa kwenguva yakareba, kunyanya pamberi peasidhi, maketani emaketani anogonawo kupatsanurwa. uye viscosity ichaderera panguva ino. Inogonawo kukonzera kupatsanurwa mune oxidizing agents, kunyanya mune alkaline mhinduro.

Chii chinonyanya kukosha checarboxymethyl cellulose (CMC) pagypsum?

Mhinduro: Carboxymethyl cellulose (CMC) inonyanya kuita basa rekukora uye kunamatira, uye mhedzisiro yekuchengeta mvura haisi pachena. Kana ikashandiswa pamwe chete neajenti yekuchengetedza mvura, inogona kuomesa uye kuomesa gypsum slurry uye kuvandudza kushanda kwekuvaka, asi carboxymethyl cellulose Iyo base cellulose inodzoreredza kugadzika kwegypsum, kana kutotadza kusimba, uye simba richadonha zvakanyanya. , saka huwandu hwekushandisa hunofanira kunyatsodzorwa.