Methyl cellulose (MC) yakagadzirwa nechigadzirwa chechisikigo

Methyl cellulose (MC) inobva mu cellulose, inova polymer yechisikigo inowanikwa mumadziro emasero emiti. Cellulose ndeimwe yemakemikari eorganic akawanda kwazvo pasi pano, anonyanya kuwanikwa kubva muhuni pulp uye cotton fibers. MC inogadzirwa kubva mu cellulose kuburikidza nemaitiro akasiyana-siyana emakemikari anosanganisira kutsiviwa kwe hydroxyl groups (-OH) mu cellulose molecule ne methyl groups (-CH3).

Kunyange zvazvo MC pachayo iri musanganiswa wemakemikari, zvinhu zvayo zvekugadzira, cellulose, zvinobva muzvinhu zvakasikwa. Cellulose inogona kutorwa kubva mumiti yakasiyana-siyana, kusanganisira huni, donje, hemp, nezvimwe zvinomera zvine fibrous. Cellulose inogadziriswa kubvisa tsvina uye kuishandura kuita chimiro chinoshandiswa pakugadzira MC.

Kana cellulose yawanikwa, inozoiswa mu etherification kuti iunze mapoka e methyl kumusana we cellulose, zvichikonzera kuumbwa kwe methyl cellulose. Maitiro aya anosanganisira kurapa cellulose nemusanganiswa we sodium hydroxide ne methyl chloride mumamiriro ezvinhu akarongwa.

Methyl cellulose inobuda ihupfu hunobva pakuva huchena kusvika pahuchena, husina hwema, uye husina kunaka hunonyungudika mumvura inotonhora uye hunoita mushonga unonamira. Inoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana, anosanganisira chikafu, mishonga, kuchengetedza muviri, uye kuvaka, nekuda kwekukora kwayo, kugadzikana, uye hunhu hwekugadzira firimu.

Kunyange zvazvo MC iri chinhu chakagadziriswa nemakemikari, inobva mu cellulose yechisikigo, zvichiita kuti ive sarudzo inoora uye isingakuvadzi nharaunda inoshandiswa kakawanda.