Ugbu a enwere ọtụtụ ahịa maka hydroxypropyl carboxymethyl cellulose na ọnụ ahịa na-ezighi ezi, otu esi eme ngwa ngwa na ịchọpụta ogo hydroxypropyl carboxymethyl cellulose aghọwo ihe dị mkpa! Ya mere, otu esi ekpe ikpe ogo hydroxypropyl methylcellulose? Ihe mbụ ị ga-ele anya bụ ọcha nke hydroxypropyl cellulose; ọ bụ ezie na ọcha enweghị ike ikpebi ma HPMC dị mma maka ojiji, ụfọdụ ndị na-emepụta ihe na-adịghị mma ga-agbakwunye onye na-acha ọcha n'oge nhazi, nke ga-emetụta àgwà ya. Mana n'ikwu okwu n'ozuzu, ọtụtụ n'ime ethers cellulose mara mma nwere ọcha ka mma.
Nke abuo, ọ dabere na fineness nke hydroxypropyl methylcellulose: urughuru size nke hydroxypropyl carboxymethyl cellulose bụ 80-100 ntupu, erughị 120 ntupu, na hydroxyethyl cellulose HECHPMC bụ banyere 100 ntupu. Ọtụtụ n'ime hpmc bụ 60-80 mesh. N'ozuzu, ka methyl cellulose na-adị nro, ka mgbasawanye ahụ ka mma.
Ihe doro anya nke cellulose ether na ngwọta: tinye HPMC n'ime mmiri iji mepụta ngwọta colloidal transperent, nke dị elu nke doro anya, nke dị elu nke doro anya, na-ebelata ihe ndị na-adịghị edozi ahụ.
Mgbe ngwaahịa ahụ na-ekpo ọkụ, ọ na-agbaze ma ọ bụ ọdọ mmiri wee gbazee. Ọ bụ hydrophobic na soluble. Concrete bụ isi njikọ na demulsifying akụrụngwa maka putty ntụ ntụ na-eguzogide mmiri. Ụkpụrụ nke mmiri na-eguzogide mmiri bụ nke a: mgbe a na-ejikọta ntụ ntụ ntụ na ciment na mmiri, ntụ ntụ latex ga-anọgide na-alaghachi n'ụdị emulsion mbụ, na akụkụ nke latex na-agbasasịkwa n'ime ciment slurry. Mgbe ciment zutere mmiri, mmeghachi omume hydration na-amalite, na Ca (OH) ngwọta na-erute saturation na kristal na-ebuli elu. N'otu oge ahụ, ettringite kristal na calcium silicate hydrate colloid na-etolite, na latex irighiri na-edebe na On gel na unhydrated cement particles, dị ka hydration mmeghachi omume na-aga n'ihu, hydration ngwaahịa na-aga n'ihu na-abawanye, na latex ahụ nke nta nke nta na-agbakọta na voids nke inorganic ihe dị ka ciment, na-etolite a ciment juru n'ọnụ n'elu. , N'ihi mbelata nke nta nke nta nke mmiri akọrọ, ihe ndị na-emechi emechi na-atụgharị na gel na voids coagulate na-emepụta ihe nkiri na-aga n'ihu, na-eme ka ngwakọta na matrix interpenetrating nke ciment mado, na-eme ka ciment mado na ndị ọzọ powders The aggregates na- glued ibe ha.
Oge nzipu: Mee-11-2023