Iji chọpụta ogo nke hydroxypropyl methyl cellulose

Ugbu ahydroxypropyl carboxymethyl celluloseAhịa ahịa na-akawanye njọ, ọnụ ahịa anaghị agbanwe agbanwe, otu esi ewepụ ịdị mma nke hydroxypropyl methyl cellulose ngwa ngwa aghọwo nsogbu dị oke mkpa! Yabụ kedu ka esi ekpebi ịdị mma nke hydroxypropyl methylcellulose? Ihe mbụ ị ga-eleba anya bụ ịdị ọcha nke hydroxypropyl cellulose; Ọ bụ ezie na enweghị ike idobe ọcha ma HPMC dabara adaba maka ojiji, mana n'usoro nhazi enwere ụfọdụ ndị nrụpụta ọjọọ ga-agbakwunye ihe na-eme ka ọcha dị mma, ga-emebi ịdị mma ya. Mana n'ozuzu, ọtụtụ cellulose ether dị mma bụ ịdị ọcha ka mma.

Nke abụọ, ịhụ ịdị mma nke hydroxypropyl methyl cellulose: nha ihe dị na hydroxypropyl carboxymethyl cellulose nke 80-100 mesh, 120 mesh pere mpe, hydroxyethyl cellulose HECHPMC ihe dị ka 100 mesh. HPMC maka ọtụtụ mesh 60-80, methyl cellulose dị nro, mgbasa ka mma.

Ngwọta nke cellulose ether doro anya:HPMCTinye ya n'ime mmiri iji mepụta mmiri colloid doro anya, lee ka mkpebi ahụ si dị elu, otú ahụ ka mkpebi ahụ si dị elu, nke na-anaghị agbaze ihe kemịkalụ ahụ dị ala.

Mgbe e kpochara ngwa ahịa ahụ ọkụ, a na-agwakọta ya ma ọ bụ na-agbaze ya ma mechaa gbazee ya. Ọ na-eme ka mmiri ghara ịgbaze ma na-agbaze mmiri. Kọnktrị bụ ihe dị mkpa nke na-ejikọta ma na-ewepụ ihe ndị na-adịghị mma nke ntụ ntụ putty na-eguzogide mmiri. Ụkpụrụ ya na-anaghị ekwe ka mmiri ghara ịgbaze bụ ndị a: N'usoro itinye mmiri ma na-akpali ntụ ntụ latex na simenti a na-agbaze agbaze, ntụ latex na-alaghachi n'ụdị emulsion mbụ, a na-agbasakwa mkpụrụ latex ahụ n'ime simenti ahụ. Mgbe simenti zutere mmiri, mmeghachi omume mmiri ahụ na-amalite, ngwọta Ca (OH) 2 na-erute njupụta ma na-akpali kristal, n'otu oge ahụ, a na-emepụta kristal ettringite na calcium silicate hydrate colloids. A na-etinye mkpụrụ latex na gel na mkpụrụ simenti a na-anaghị agbaze agbaze. Ka mmeghachi omume mmiri na-aga n'ihu, ngwaahịa mmiri na-abawanye, a na-achịkọtakwa mkpụrụ latex nwayọ nwayọ n'ebe ihe ndị na-adịghị mma dị ka simenti dị, ma na-emepụta oyi akwa mkpokọta n'elu jel simenti. N'ihi mbelata nke mmiri kpọrọ nkụ nke nta nke nta, ihe ndị e ji latex mee nke ọma na gel na voids na-agbakọta iji mepụta ihe nkiri na-aga n'ihu, na-emepụta ngwakọta nke simenti matte interpassing matrix, ma jikọta simenti matte ahụ na ngwakọta ntụ ntụ ndị ọzọ.