Kedu ka ntụ ntụ emulsion si eme ka nrụgide nke ihe ngwa agha dịkwuo elu

Ntụ ntụ emulsion ahụ mechara mepụta ihe nkiri polymer, a na-emepụtakwa usoro nke ihe owuwu inorganic na organic na moto a gwọrọ agwọ, ya bụ, ọkpụkpụ siri ike ma sie ike nke ejiri ihe hydraulic mee, yana ihe nkiri nke ntụ ntụ latex redispersible na oghere na elu siri ike mepụtara. netwọk na-agbanwe agbanwe. Ike nrụgide na njikọta nke ihe nkiri resin polymer nke ntụ latex mepụtara na-eme ka ọ dịkwuo mma. N'ihi mgbanwe nke polima ahụ, ikike mgbanwe dị elu karịa nke usoro siri ike nke nkume simenti, a na-eme ka arụmọrụ mgbanwe nke moto ahụ ka mma, a na-emekwa ka mmetụta nke nrụgide gbasaa dịkwuo mma, si otú a na-eme ka iguzogide mgbawa nke moto ahụ ka mma. Site na mmụba nke ọdịnaya nke ntụ latex redispersible, sistemụ ahụ dum na-etolite na plastik. N'ihe gbasara nnukwu ọdịnaya nke ntụ latex, usoro polymer na moto a gwọrọ agwọ ji nwayọọ nwayọọ gafere usoro ngwaahịa hydration inorganic, moto ahụ ga-agbanwekwa àgwà ma ghọọ elastomer, ebe ngwaahịa hydration nke simenti na-aghọ "ihe na-ejupụta". ".

Ike nrụgide, mgbanwe, mgbanwe na ike mkpuchi nke ngwa agha e ji ntụ latex redispersible gbanwee ka mma. Ngwakọta nke ntụ latex redispersible na-enye ohere ka ihe nkiri polymer (ihe nkiri latex) mepụta ma mepụta akụkụ nke mgbidi oghere ahụ, si otú a na-emechi usoro porosity dị elu nke ngwa agha ahụ. Akpụkpọ ahụ latex nwere usoro ịgbatị onwe ya nke na-etinye nrụgide ebe ọ kwụgidere na ngwa agha ahụ. Site na ike dị n'ime ndị a, a na-ejigide ngwa agha ahụ dum, si otú a na-eme ka ike njikọ nke ngwa agha ahụ dịkwuo elu. Ọnụnọ nke polymers na-agbanwe agbanwe ma na-agbanwe agbanwe nke ukwuu na-eme ka mgbanwe na ike nke ngwa agha ahụ dịkwuo mma. Usoro maka mmụba na nrụgide mmepụta na ike ọdịda bụ dị ka ndị a: mgbe etinyere ike, a na-egbu oge microcracks ruo mgbe a ga-eru nrụgide dị elu n'ihi mgbanwe na ike ịgbatị ka mma. Na mgbakwunye, ngalaba polymer e jikọtara ọnụ na-egbochikwa njikọta nke microcracks n'ime mgbawa ndị na-abanye. Ya mere, ntụ polymer redispersible na-eme ka nrụgide ọdịda na nrụgide ọdịda nke ihe ahụ ka mma.

Ihe nkiri polima dị na polima agbanweela nwere mmetụta dị oke mkpa na moto siri ike. Ntụ latex a na-agbanwe agbanwe nke a na-ekesa na interface ahụ na-arụ ọrụ ọzọ dị mkpa mgbe a gbasasịrị ya ma mepụta ihe nkiri, nke bụ ịbawanye nrapado na ihe ndị a kpọtụrụ aha. Na obere nhazi nke polima gbanwere taịlị na njikọ taịlị, ihe nkiri nke polima mepụtara na-emepụta àkwà mmiri n'etiti taịlị vitrified nwere obere mmiri na-abanye na matriks simenti. Mpaghara kọntaktị n'etiti ihe abụọ dị iche iche bụ ebe dị oke egwu maka mgbawa mbelata ịkpụpụta ma duga na mfu nke njikọ. Ya mere, ikike nke ihe nkiri latex ịgwọ mgbawa mbelata dị oke mkpa maka ihe njikọta taịlị.