Ama-ether e-cellulose angama-polymer okwenziwa enziwe nge-cellulose yemvelo futhi aguqulwe ngamakhemikhali. I-ether ye-cellulose iwumphumela we-cellulose yemvelo. Ngokungafani nama-polymer okwenziwa, ukukhiqizwa kwe-ether ye-cellulose kusekelwe ku-cellulose, into eyisisekelo kakhulu, i-compound yemvelo ye-polymer. Ngenxa yokwakheka kwe-cellulose yemvelo, i-cellulose ngokwayo ayinawo amandla okusabela nama-ether e-ether. Kodwa-ke, ngemva kokwelashwa kwama-solubilizer, izibopho ezinamandla ze-hydrogen phakathi nangaphakathi kwamaketanga ama-molecule ziyabhujiswa, futhi umsebenzi weqembu le-hydroxyl ukhishwa ube yi-alkali cellulose enekhono lokusabela, futhi ngemva kokusabela kwe-ether e-ether iqembu le-OH liguqulwa libe yiqembu le-OR ukuthola i-ether ye-cellulose.
Ama-ether e-cellulose anomphumela ocacile wokungenisa umoya ezintweni ezisanda kuhlanganiswa zesimende. Ama-ether e-cellulose anamaqembu athanda amanzi (i-hydroxyl, i-ether) kanye ne-hydrophobic (i-methyl, i-glucose ring) futhi angama-surfactants anomsebenzi wobuso futhi ngaleyo ndlela anomphumela wokungenisa umoya. Umphumela wokungenisa umoya we-ether ye-cellulose uzokhiqiza umphumela "webhola", ongathuthukisa ukusebenza kwezinto ezintsha, njengokwandisa i-plasticity kanye nokushelela kwe-mortar ngesikhathi sokusebenza, okuzuzisa ekusakazeni kwe-mortar; kuzophinde kuthuthukise isivuno se-mortar futhi kunciphise izindleko zokukhiqizwa kwe-mortar; noma kunjalo, kuzokhulisa i-porosity yezinto eziqinile futhi kunciphise amandla azo kanye ne-elastic modulus, njll. Izakhiwo zemishini.
Njenge-surfactant, i-cellulose ether nayo inomphumela wokumanzisa noma wokugcoba ezinhlayiyeni zesimende, okuthi kanye nomphumela wayo wokungenisa umoya kwandisa ukugeleza kwezinto eziqinisayo, kodwa umphumela wayo wokujiya unciphisa ukugeleza, futhi umphumela we-cellulose ether ekujiyeni kwezinto eziqinisayo kuyinhlanganisela yemiphumela yokwenza ipulasitiki kanye nokuqina. Ngokuvamile, lapho inani le-cellulose ether liphansi kakhulu, libonisa kakhulu umphumela wokwenziwa ipulasitiki noma ukunciphisa amanzi; lapho inani liphezulu, umphumela wokuqina we-cellulose ether uyanda ngokushesha, futhi umphumela wayo wokungenisa umoya uvame ukugcwala, ngakho-ke ubonisa umphumela wokuqina noma wandise isidingo samanzi.
Isikhathi sokuthunyelwe: Ephreli-24-2022