Oke mmetụta nke cellose ether

Mkpụrụ osisi ikuku na-efe efe na ụdị viocosity nwere ezigbo vieding, nke nwere ike ịbawanye ikike njikọta n'etiti mmiri mmiri na ntọala ndabere nke ngwa agha. A na-ejikarị ya na ngwa agha plasta, usoro mmekpuru na mpụga na ngwa ngwa ngwa. Ihe ndị na - emepụta nke cellulose ether nwere ike mụbaa nke ihe ndị dabeere na mgbochi ciment nke ọma, enwere ike iji ya na eriri dị iche iche.

Mkpụrụ osisi na-abawanye viscosise nke ihe ciment n'ihe sitere na viscosity nke cellulose ehul. A na-ejikarị Index nke "Viscosis" iji nyochaa viscosity nke sel sel. Vieocistose nke cellose na-ezo aka na sellulose ehuru ether na ụfọdụ ịta (dịka 2%). Speed ​​(ma ọ bụ ntụgharị ntụgharị, dịka 20 RPM), uru viscosit na-eji ngwa viscosis na-eji ngwa ọrụ a akọwapụtara (dịka ndị na-ahụ maka ntụgharị).

Visaty bụ ihe dị mkpa iji nyochaa arụmọrụ nke ether. Na viscy Viet nke sel ehuru nke, ka mma viscosise nke ciment ihe, ka mma nrasion nke mkpụrụ, na ike na-enweghị mgbochi na mgbochi mkpọsa. Ọ bụrụ na viscosity ya dị oke elu, ọ ga-emetụta ọgwụ mgbochi na arụmọrụ nke ihe ciment (dị ka ịrapara na ngwa plasta n'oge a na-ere ọkụ. Ya mere, viscosity nke sel other ejiri ya na ngwa agha a gwakọtara na-abụkarị 15,000 ~ 60,000. S-1, ngwa agha nke onwe ya na nke onwe na-enweghị onwe, nke chọrọ mmiri mmiri dị elu, chọrọ obere viscosis nke sel.

Na mgbakwunye, ihe na-eme ka mmetụta nke cellulose na-eme ka ciment chọrọ mmiri ciment, si otú a na-amụba mkpụrụ nke ngwa agha.

Viscosity nke evet ellugul na-adabere na ihe ndị a:

Igodo molecular (ma ọ bụ ogo polymerization) na ịta nke cellose eather, ngwọta okpomọkụ, ọnụego ya na usoro nnwale.

1. Onye kachasị elu nke polmerization nke cellulose eart, ịdị arọ molecular ka ukwuu, na nke viscosity na viscosity nke ya;

2. Onye dị elu na-agbanwe agbanwe (ma ọ bụ itinye uche) nke cellulose, a ga-elebara anya ka ọ họrọ ya mgbe ị na-eji ya, ka ọ ghara imetụta arụmọrụ nke ngwa agha na ihe dị oke elu;

3. Dị ka ọtụtụ mmiri, viscosity nke cellulose a ga - ebelata na mmụba nke okpomọkụ, na elu ịta ahụ nke cellose eart, ka ukwuu mmetụta nke okpomọkụ;

4. Ngwọta Eweret na-abụkarị pseudoplastic, nke nwere ala nke shining. Ọnụego osisi a na-enwe n'oge ule ahụ, nke na-adịghị ala ala.

Ya mere, a ga-ebelata mkpuchi nke ngwa agha a ga-ebelata n'ihi ike mpụga, nke bara uru owuwe ihe ọkụkụ nke ngwa agha, ya mere na ụkọ mmiri nwere ike ịnwe ezigbo ọrụ na cohesion n'otu oge. Agbanyeghị, sellulose evether ga-egosipụta njirimara mmiri Newtonian mgbe ịta ahụhụ dị ala na viscosity dị obere. Mgbe ịta ahụ na-abawanye, ihe ga - eji nwayọ gosipụta njirimara pseudoplastics, na elu ịta, na pseudoplastity.