Viscosity chinhu chakakosha pakunzwisisa maitiro emvura, kusanganisira cellulose ethers.Cellulose ethers iboka remakomisheni akaumbwa kubva muselulosi, polima rinongoitika rinowanikwa muzvirimwa.Aya ether anoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana nekuda kwezvimiro zvavo zvakasiyana, kusanganisira viscosity modification.
1. Nhanganyaya kune Cellulose Ethers:
Cellulose ethers zvinobva kune cellulose inowanikwa nekugadziriswa kwemakemikari.Mienzaniso yakajairika inosanganisira methylcellulose, ethylcellulose, hydroxypropylcellulose, uye hydroxyethylcellulose.Mishonga iyi inoratidzirwa nehuremu hwayo hwemamorekuru uye kuvepo kwemapoka ehydroxyl, ayo anoita kuti anyungudika mumvura uye organic solvents kune akasiyana madhigirii.
2. Kukosha kweViscosity:
Viscosity chiyero chekuramba kwemvura kuyerera.Panyaya ye cellulose ethers, viscosity inotora basa rakakosha pakuona kukodzera kwavo kune akasiyana maapplication.Semuyenzaniso, muindasitiri yechikafu, viscosity inokanganisa magadzirirwo uye muromo wezvigadzirwa zvakaita sesosi nemapfekero.Mumishonga yemishonga, inokonzera kuwirirana uye kupararira kwemafuta nemafuta.Saka, kunzwisisa uye kudzora viscosity kwakakosha pakugadzirisa kuita kwechigadzirwa.
3. Zvinhu Zvinokanganisa Viscosity:
Zvinhu zvinoverengeka zvinopesvedzera viscosity ye cellulose ethers:
Molecular Weight: Yakakwira molecular uremu kazhinji inotungamira kune yakakwira viscosity nekuda kwekuwedzera ketani kubatanidzwa.
Kutsiva Level: Iyo dhigirii yekutsiviwa kwemapoka ether pane cellulose musana inokanganisa kunyungudika uye, nekudaro, viscosity.
Tembiricha: Viscosity inowanzodzikira nekuwedzera tembiricha nekuda kwekudzikira kwekudyidzana kwema molecular.
Kuisa pfungwa: Kukwirira kwepamusoro kwe cellulose ethers kunowanzokonzera viscosity yakakwirira, kutevera hukama husina-mutsara.
4. Matekiniki ekuyera:
Viscosity inogona kuyerwa uchishandisa nzira dzakasiyana siyana:
Rotational Viscometry: Inowanzo shandiswa kugadzirisa uye kumiswa, nzira iyi inosanganisira kuyera torque inodiwa kutenderedza spindle mumvura.
Capillary Viscometry: Iyi nzira inoyera nguva inotorwa kuti mvura idzerere nemucapillary chubhu pasi peyakatarwa pressure gradient.
Rheology: Rheological zviyero zvinopa nzwisiso yekuti chinhu chinokanganisa sei pasi pekunetsekana, kusanganisira shear uye elongational viscosity.
5. Zvishandiso zveCellulose Ethers:
Cellulose ethers inowana maapplication mumaindasitiri akasiyana siyana:
Zvokudya: Zvinoshandiswa sezvikobvu, zvinosimbisa, uye emulsifiers muzvigadzirwa zvakaita seaizikirimu, yoghuti, uye mapfekero esaladhi.
Pharmaceuticals: Vanoshandirwa sevasungiridzi, disintegrants, uye vanogadzira firimu mukugadzirwa kwehwendefa, mafuta ekuzora, uye kumiswa.
Kuvaka: Yakawedzerwa kusimende nedhaka kuvandudza kushanda, kuchengetedza mvura, uye kunamatira.
Chengetedzo Yega: Inosanganisirwa muzvizoro, shampoos, uye mafuta ekuzora pakukora uye gelling zvimiro.
6. Mafambiro uye Zvinetso:
Iko kudiwa kwema cellulose ethers inotarisirwa kukura, ichitungamirwa nekuwedzera maapplication mugirinhi chemistry, biomedicine, uye zvemberi zvinhu.Nekudaro, zvinonetsa zvakaita sekukwikwidza kwemitengo, zvinonetsa zvekudzora, uye kudiwa kwekugadziriswa kwekutsvaga uye nzira dzekugadzira zvinoramba zviripo.
7. Mhedziso:
iyo viscosity ye cellulose ethers ndiyo yakakosha parameter inopesvedzera mashandiro avo mumashandisirwo akasiyana siyana.Kunzwisisa zvinhu zvinokanganisa viscosity uye kushandisa nzira dzekuyera dzakakodzera kwakakosha pakugadzirisa zvigadzirwa nemagadzirirwo.Sezvo maindasitiri ari kuramba achivandudza, cellulose ethers angangoita basa rinowedzera kukosha mukuumba ramangwana rezvinhu zvesainzi uye tekinoroji.
iyo viscosity ye cellulose ethers chinhu chakaoma asi chakakosha icho chinokanganisa mashandiro avo mumaindasitiri akasiyana.Nekunzwisisa kukosha kwayo, zvinhu zvinoipesvedzera, matekiniki ekuyera, uye mashandisirwo, vaongorori nevarapi vanogona kushandisa nemazvo cellulose ethers munzvimbo dzakasiyana siyana, zvichibatsira mukufambira mberi mune zvesainzi uye tekinoroji.
Nguva yekutumira: Mar-29-2024