N'ime ngwa agha akọrọ, cellulose ether bụ ihe mgbakwunye bụ isi nke nwere ike imeziwanye arụmọrụ nke ngwa agha mmiri ma na-emetụta arụmọrụ nke ngwa agha.Methyl cellulose ether na-arụ ọrụ nke njide mmiri, ịgbatị, na imeziwanye arụmọrụ ihe owuwu.Ezigbo njide mmiri na-eme ka ọ bụrụ na ngwa agha ahụ agaghị eme ka ájá, ntụ ntụ na mbelata ike n'ihi ụkọ mmiri na hydration ciment ezughị ezu;thickening mmetụta The structural ike nke mmiri mmiri ngwa agha na-amụba nke ukwuu, na mgbakwunye na nke methyl cellulose ether nwere ike budata mma mmiri viscosity nke mmiri ngwa agha, na nwere ezi adhesion dị iche iche substrates, si otú ahụ na-emeziwanye arụmọrụ nke mmiri ngwa agha na mgbidi. na ibelata ihe mkpofu;na mgbakwunye, dị iche iche Ọrụ cellulose na ngwaahịa dị iche iche, dịka ọmụmaatụ: cellulose na tile adhesives nwere ike ime ka oge imeghe ma gbanwee oge;cellulose na n'ibu spraying ngwa agha nwere ike melite structural ike nke mmiri ngwa agha;na ọkwa nke onwe, cellulose na-ekere òkè na igbochi mmezi, nkewa na stratification.
The mmepụta nke cellulose ether bụ tumadi mere nke eke emep uta eri site alkali mgbasa, grafting mmeghachi omume (etherification), ịsa, ihicha, egweri na ndị ọzọ Filiks.Isi akụrụngwa nke eke emep uta eri nwere ike kewaa: owu eriri, cedar eriri, beech eriri, wdg ha ogo polymerization dị iche iche, nke ga-emetụta ikpeazụ viscosity nke ha ngwaahịa.Ka ọ dị ugbu a, ndị isi na-emepụta cellulose na-eji eriri owu (ngwaahịa sitere na nitrocellulose) dị ka ihe bụ isi.Enwere ike kewaa cellulose ethers na ionic na ndị na-abụghị ionic.Ụdị ionic na-agụnyekarị nnu carboxymethyl cellulose, na ụdị nke na-abụghị ionic gụnyere methyl cellulose, methyl hydroxyethyl (propyl) cellulose, na hydroxyethyl cellulose.Su na ndị ọzọ.Na akọrọ ntụ ntụ ngwa agha, n'ihi na ionic cellulose (carboxymethyl cellulose nnu) bụ ejighị n'aka na ọnụnọ nke calcium ion, ọ na-adịkarịghị eji na akọrọ ntụ ntụ ngwaahịa dị ka ciment slaked wayo dị ka cimentious ihe.
Njide mmiri nke cellulose na-emetụtakwa ọnọdụ okpomọkụ eji.Njide mmiri nke methyl cellulose ether na-ebelata na mmụba nke okpomọkụ.Dịka ọmụmaatụ, n'oge okpomọkụ, mgbe ìhè anyanwụ dị, a na-agbanye mgbidi mgbidi dị n'èzí, nke na-emekarị ka a gwọọ ciment na ngwa agha.Ịkwụsị ike na mbelata nke njide mmiri na-eduga n'echiche doro anya na ma arụ ọrụ ihe owuwu na arụmọrụ mgbochi na-emetụta.N'okwu a, ọ dị oke mkpa iji belata mmetụta nke ihe okpomọkụ.Mgbe ụfọdụ ọ nweghị ike gboo mkpa nke ojiji.A na-eme ọgwụgwọ ụfọdụ na cellulose, dị ka ịba ụba nke etherification, wdg, nke mere na mmetụta njide mmiri ka nwere ike ịnọgide na-enwe mmetụta dị mma na okpomọkụ dị elu.
Njide mmiri nke cellulose: Isi ihe na-emetụta njide mmiri nke ngwa agha gụnyere ọnụọgụ cellulose agbakwunyere, viscosity nke cellulose, ịdị mma nke cellulose, na okpomọkụ nke gburugburu ebe ọrụ.
Viscosity nke cellulose: N'ikwu okwu n'ozuzu, ka viscosity dị elu, ka mma njide mmiri na-enwe mmetụta, ma elu viscosity, elu nke molekụla arọ nke cellulose, na kwekọrọ ekwekọ mbelata ya solubility, nke nwere mmetụta ọjọọ na-ewu arụmọrụ. na ike nke ngwa agha .Ihe dị elu nke viscosity, otú ahụ ka ọ na-apụta ìhè nke ọma mmetụta na ngwa ngwa, ma ọ bụghị kpọmkwem.Ka viscosity dị elu, ka ngwa ngwa mmiri ga-adịkwu viscous.N'oge a na-ewu ihe, ọ ga-arapara na scraper ma nwee nnukwu nrapado na mkpụrụ, ma ọ gaghị enyere aka nke ukwuu iji mee ka ike nhazi nke ngwa agha mmiri n'onwe ya dịkwuo elu, na ọrụ mgbochi-sag agaghị apụta ìhè n'oge a na-ewu ya.
Ịdị mma nke cellulose: ịdị mma na-emetụta solubility nke cellulose ether.Cellulose siri ike na-abụkarị granular ma na-efesa ngwa ngwa n'ime mmiri na-enweghị agglomeration, mana ọnụego mgbasa na-adị ngwa ngwa.Ọ dịghị mma maka ojiji na akọrọ ntụ ntụ ngwa agha.Emepụtara n'ime ụlọ Ụfọdụ n'ime cellulose na-agbagharị, ọ dịghị mfe ịgbasa na igbari na mmiri, ọ dịkwa mfe agglomerate.Naanị ezigbo ntụ ntụ nwere ike izere methyl cellulose ether agglomeration mgbe ị na-agbakwunye mmiri na edemede.Ma ether cellulose nke buru ibu abụghị naanị na-emebi emebi kamakwa ọ na-ebelata ike mpaghara nke ngwa agha ahụ.Mgbe a na-arụ ụrọ ntụ ntụ dị otú ahụ n'ebe buru ibu, a na-ebelata ngwa ngwa ngwa ngwa nke mpaghara ahụ, na mgbawa n'ihi oge ọgwụgwọ dị iche iche na-apụta.N'ihi obere oge ịgwakọta, ngwa agha na-arụ ọrụ na-arụ ọrụ chọrọ ịdị mma dị elu.
Oge nzipu: Feb-13-2023