Chii chinonzi Cellulose Ethers uye Nei Chichishandiswa?

Cellulose ethers mapolymer anonyungudika nemvura akagadzirwa kubva ku cellulose, icho chikuru chechimiro chezvirimwa. Kune akati wandei emhando dze cellulose ethers, imwe neimwe iine akasiyana zvivakwa zvinoita kuti ive yakanaka kune akasiyana maapplication.

Tekinoroji mamakisi e cellulose ether anoshandiswa mune zvese kubva kumishonga uye zvekuzora kusvika pakuvaka nekugadzira machira. Mukuwedzera, ivo vanoshandiswa sezvokudya zvinowedzera uye thickeners mumapende uye machira.

Mhando dze cellulose ethers

Mhando nhatu dzinonyanya kuzivikanwa dze cellulose ethers ihydroxypropylmethylcellulose (HPMC), methylhydroxyethylcellulose (MHEC).

Nekuda kwekusiyana-siyana kwayo, HPMC ndiyo inonyanya kushandiswa mhando ye cellulose ether. Inowanikwa mumagiredhi akasiyana-siyana ane huremu hwemamorekuru akasiyana, madhigirii ekutsiva uye viscosities. HPMC inogona kushandiswa mune zvese acidic uye alkaline mhinduro, ichiita kuti ive yakanaka kune yakafararira maapplication.

MHEC yakafanana neHPMC asi ine yakaderera hydroxypropyl yemukati. Kuenzaniswa neHPMC, tembiricha yegelation yeMHEC inowanzokwira kupfuura 80 ° C, zvichienderana nezviri muboka uye nzira yekugadzira. MHEC inowanzoshandiswa seyakakora, binder, emulsion stabilizer kana firimu rekare.

Cellulose ethers ine zvakawanda zvekushandisa nekuda kwezvakasiyana zvivakwa. Zvimwe zvinowanzoitika zve cellulose ethers zvinosanganisira:

Thickeners: Cellulose ethers inogona kushandiswa semafuta ekuzora, zvinonamira, makemikari omumunda wemafuta, chikafu, zvizorwa, uye mishonga.

Binders: Cellulose ethers inogona kushandiswa semabhainda mumapiritsi kana magranules. Ivo vanovandudza iyo compressibility yehupfu vachiri kuchengetedza yakanaka kuyerera zvivakwa.

Emulsion Stabilizers: Cellulose ethers inogona kudzikamisa emulsions nekudzivirira kubatana kana flocculation yemadonhwe echikamu akapararira. Izvi zvinoita kuti dzive dzakanakira kushandiswa mu emulsion polymers senge latex pendi kana zvinonamira.

Vagadziri vemafirimu: Cellulose ethers inogona kushandiswa kugadzira mafirimu kana mabhanhire pamusoro. Ivo vanowanzo shandiswa mukuvaka zvikumbiro senge mataira kana mapepa ekunamatira. Mafirimu akaumbwa kubva ku cellulose ethers anowanzo kuve akajeka uye anochinjika, aine hunyoro hwekudzivirira.