Ngwakọta ntụ ntụ kpọrọ nkụ na-ezo aka n'ihe granular ma ọ bụ ntụ ntụ akpụpụtara site na ịgwakọta mkpokọta anụ ahụ, ihe simenti siri ike, na ihe mgbakwunye a mịrị amị ma kpuchie ya n'ụzọ ụfọdụ.Kedu ihe mgbakwunye a na-ejikarị maka ngwa ngwa ntụ ntụ akọrọ?Ngwakọta ntụ ntụ akọrọ n'ozuzu na-eji ciment Portland dị ka ihe simenti, ọnụ ọgụgụ nke simentious ihe na-abụkarị 20% ruo 40% nke ntụ ntụ ntụ;Ọtụtụ nchịkọta dị mma bụ ájá quartz ma na-achọ nnukwu ọgwụgwọ tupu ọgwụgwọ dị ka ihicha na nyocha iji hụ na nha nha na àgwà ha na-agbaso ihe achọrọ nke usoro ahụ;Mgbe ụfọdụ, a na-agbakwunye uyi ofufe, ntụ ntụ, wdg dị ka admixtures;A na-ejikarị admixtures eme ihe na obere ego, sitere na 1% ruo 3%, mana nwere mmetụta dị ukwuu.A na-ahọrọkarị ha dịka ihe achọrọ nke usoro ngwaahịa ahụ iji melite arụmọrụ, ịkwa akwa, ike, nkwụsịtụ, na ntu oyi nke ngwa agha.
Kedu ụdị ihe mgbakwunye ntụ ntụ ntụ akọrọ a na-ejikarị?
ntụ ntụ latex enwere ike agbasa
Uzuzu latex na-agbanwe agbanwe nwere ike melite njirimara ndị a na ngwa ngwa ntụ ntụ akọrọ:
① Njide mmiri na arụ ọrụ nke ngwa agha agwakọtara ọhụrụ;
② Ọrụ njikọta nke ọkwa dị iche iche;
③ Mgbanwe na arụrụ arụ nke ngwa agha;
④ Na-ehulata ike na njikọta;
⑤ Yiri nguzogide;
⑥ Nkwụsị ike;
⑦ Kọmpat (enweghị ike).
Ngwa nkentụ ntụ latex redisperableNgwunye akwa akwa akwa akwa akwa akwa, ihe nkedo seramiiki, sistemu mkpuchi mgbidi dị n'èzí, yana ihe eji eme ala ala egosila ezigbo nsonaazụ.
Onye na-ejigide mmiri na ihe na-eme ka ọ dị arọ
Mmiri na-ejigide thickeners tumadi gụnyerecellulose ethers, starch ethers, wdg The cellulose ether eji akọrọ ntụ ntụ ngwa agha bụ tumadi methyl hydroxyethyl cellulose ether (MHECna hydroxypropyl methyl cellulose ether.HPMC).
Onye na-ebelata mmiri
Ọrụ bụ isi nke ihe na-ebelata mmiri bụ ibelata agụụ mmiri nke ngwa agha, si otú a na-emeziwanye ike mkpakọ ya.Ihe ndị bụ isi na-ebelata mmiri nke a na-eji na ngwa ngwa ntụ ntụ akọrọ gụnyere casein, ihe na-ebelata mmiri naphthalene, melamine formaldehyde condensate, na polycarboxylic acid.Casein bụ ezigbo superplasticizer, ọkachasị maka ngwa agha oyi akwa, mana n'ihi ọdịdị okike ya, ogo ya na ọnụahịa ya na-agbanwekarị.Naphthalene usoro mmiri na-ebelata ihe ndị a na-ejikarị β-Naphthalenesulfonic acid formaldehyde condensate.
Coagulant
Enwere ụdị coagulant abụọ: accelerator na retarder.A na-eji ihe ndị na-eme ngwa ngwa na-eme ka nhazi na ike siri ike nke ngwa ngwa, na calcium formate na lithium carbonate na-ejikarị eme ihe.Aluminate na sodium silicate nwekwara ike iji dị ka ihe na-eme ngwa ngwa.A na-eji retarder na-ebelata nhazi na ike nke ngwa agha, na tartaric acid, citric acid na nnu ya, yana gluconate ejiriwo nke ọma mee ihe.
Onye na-egbochi mmiri
Ihe ndị na-egbochi mmiri na-agụnyekarị ogige polymer dị ka ígwè chloride, ogige silane organic, salts fatty acid, polypropylene fibers, na styrene butadiene roba.Ihe na-egbochi mmiri nke iron chloride nwere mmetụta mgbochi mmiri dị mma, mana ọ na-enwekarị mmebi nke ihe mgbochi nchara na akụkụ igwe agbakwunyere.Nnu calcium na-adịghị ahụkebe nke a na-emepụta site na mmeghachi omume nke fatty acid salts na calcium ions na ntinye nke cement na mgbidi nke capillaries, na-ekere òkè n'igbochi pores na ime ka mgbidi ndị a na-eme ka mgbidi dị elu ghọọ hydrophobic, si otú ahụ na-arụ ọrụ mgbochi mmiri.Ọnụ ego nke ngwaahịa ndị a dị ntakịrị, ma ọ na-ewe ogologo oge iji gwakọta ngwa agha ahụ na mmiri.
eriri
A na-eji eriri ndị a na-eji maka ụrọ ntụ ntụ akọrọ gụnyere eriri iko na-eguzogide alkali, eriri polyethylene (fiber polypropylene), ike dị elu na modul polyvinyl alcohol fiber (polyvinyl alcohol fiber),eriri osisi, wdg Ndị a na-ejikarị eme ihe bụ ike dị elu na elu modulus polyvinyl alcohol fibers na polypropylene fibers.Ike dị elu na eriri polyvinyl mmanya modulus nwere arụmọrụ dị mma yana ọnụ ala dị ala karịa eriri polypropylene ebubata.A na-ekesa fibers n'oge na-adịghị anya na otu n'otu n'otu na matrix ciment, yana njikọ chiri anya na ciment iji gbochie nguzobe na mmepe nke microcracks, na-eme ka matriks nke ngwa agha sie ike, ma si otú ahụ nwee ọrụ mgbochi mmiri na mmetụta magburu onwe ya na nkwụsị mgbawa.Ogologo ya bụ 3-19 mm.
Defoamer
Ka ọ dị ugbu a, ndị defoamers ntụ ntụ a na-eji mee ihe na ntụ ntụ ntụ bụ tumadi polyols na polysiloxanes.Ngwa nke defoamers nwere ike ọ bụghị naanị dozie ọdịnaya afụ, kamakwa ibelata shrinkage.N'ime ngwa bara uru, iji melite arụmọrụ zuru oke, ọ dị mkpa iji ọtụtụ mgbakwunye n'otu oge.N'ebe a, ọ dị mkpa ịṅa ntị na mmetụta mmekọrịta dị n'etiti ihe mgbakwunye dị iche iche.Tụkwasị na nke ahụ, ọ dịkwa mkpa ịṅa ntị na ọnụ ọgụgụ ihe mgbakwunye agbakwunyere.Obere ole na-egosipụta mmetụta nke mgbakwunye;Nke ukwuu, enwere ike inwe mmetụta.
Oge nzipu: Ọgọst-29-2023