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! Yabụ kedu ka 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. Ma n'ozuzu n'ikwu okwu, ọtụtụ n'ime ndị kasị mma cellulose ethers ka mma na-acha ọcha.
Nke abuo, ọ dabere na fineness nke hydroxypropyl methylcellulose: urughuru size nke hydroxypropyl carboxymethyl cellulose bụ 80-100 ntupu, ihe na-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 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, a na-emepụta kristal ettringite na calcium silicate hydrate colloid, na a na-edobe akụkụ nke latex na On the gel na cement cement na-adịghị edozi, ka mmeghachi omume hydration na-aga n'ihu, ngwaahịa hydration na-aga n'ihu na-abawanye, na nke nta nke nta nke nta nke nta. kpokọta na oghere nke ihe inorganic dị ka simenti, wee mepụta akwa akwa akwa akwa n'elu ciment gel. , n'ihi mbelata nke nta nke nta nke mmiri akọrọ, ihe ndị na-emechi emechi na-agbasasị na gel na voids coagulate na-emepụta ihe nkiri na-aga n'ihu, na-eme ngwakọta na matrix interpenetrating nke ciment mado, na-eme ka ciment mado na ndị ọzọ powders The aggregates. a na-ejikọta ibe ha.
Oge nzipu: Mee-11-2023