Nchikota tile nke simenti na-eme ugbu a bụ ngwa kachasị ukwuu nke ngwa ngwa agwakọta akọrọ pụrụ iche, nke bụ ciment mejupụtara dị ka isi cementious ihe na-agbakwunye ya site na mkpokọta graded, ndị na-ejigide mmiri, ndị na-ahụ maka ike mmalite, ntụ ntụ latex na ihe mgbakwunye organic ma ọ bụ inorganic ndị ọzọ. ngwakọta. N'ozuzu, ọ dị mkpa ka a gwakọta ya na mmiri mgbe ejiri ya. E jiri ya tụnyere ụrọ ciment nkịtị, ọ nwere ike imeziwanye ike njikọ dị n'etiti ihe na-eche ihu na mkpụrụ, ma nwee ezigbo nkwụghachi azụ na nguzogide mmiri dị mma na nguzogide okpomọkụ. Na uru nke ifriizi-thaw okirikiri eguzogide, tumadi na-eji mado ụlọ ime na mputa mgbidi taịl nile, n'ala taịl nile na ndị ọzọ ji achọ ihe, ọtụtụ-eji na ime na mputa mgbidi, ala, ime ụlọ ịwụ, kichin na ndị ọzọ ụkpụrụ ụlọ mma ebe, bụ ugbu a seramiiki tile bonding kacha ọtụtụ ebe eji.
Na-emekarị mgbe anyị na-ekpe ikpe na arụmọrụ nke nrapado tile, ọ bụghị nanị na anyị na-aṅa ntị na arụmọrụ arụmọrụ ya na ikike mgbochi, kamakwa ịṅa ntị na ike ọrụ ya na oge mmeghe. Cellulose ether na tile nrapado ọ bụghị naanị na-emetụta rheological Njirimara nke poselin nrapado, dị ka ezigbo ọrụ, ịrapara mma, wdg, ma na-enwe mmetụta siri ike na n'ibu Njirimara nke tile nrapado.
1. Oge mmeghe
Mgbe roba ntụ ntụ na cellulose ether na-adị na mmiri mmiri mmiri, ụfọdụ data ụdị na-egosi na roba ntụ ntụ nwere ike kinetic ike itinye na ciment hydration ngwaahịa, na cellulose ether adị ọzọ na interstitial mmiri mmiri, nke na-emetụta ọzọ Mortar viscosity na ịtọ oge. Esemokwu dị n'elu nke cellulose ether dị ukwuu karịa nke ntụ ntụ rọba, na ether cellulose ọzọ na-eme ka ọ dịkwuo mma na ngwa ngwa ngwa ga-aba uru maka ịmepụta njikọ hydrogen n'etiti ala ala na cellulose ether.
N'ime mmiri mmiri mmiri, mmiri dị na ngwa ngwa na-ekpochapụ, na cellulose ether na-eme ka ọ dịkwuo mma n'elu, a ga-emepụta ihe nkiri n'elu ngwa ngwa n'ime nkeji 5, nke ga-ebelata ọnụ ọgụgụ na-esote evaporation, dị ka mmiri ka ukwuu. wepụrụ si thicker ngwa agha Akụkụ nke ya na-akwaga na thinner ngwa agha oyi akwa, na fim e guzobere ná mmalite na- partially etisasịwo, na Mbugharị nke mmiri ga-eme ka ọzọ cellulose ether enrichment na ngwa agha elu.
Nhazi ihe nkiri nke cellulose ether n'elu ngwa agha nwere mmetụta dị ukwuu na arụmọrụ nke ngwa agha:
1. Ihe nkiri a kpụrụ akpụ dị oke mkpa, a ga-agbaze ugboro abụọ, enweghị ike igbochi evaporation nke mmiri ma belata ike.
2. Ihe nkiri a kpụrụ akpụ dị oke oke. Ntinye nke cellulose ether na mmiri mmiri interstitial ngwa agha dị elu na viscosity dị elu. Ọ dịghị mfe imebi ihe nkiri dị n'elu mgbe a na-agbanye taịl nile.
Enwere ike ịhụ na ihe ndị na-emepụta ihe nkiri nke cellulose ether nwere mmetụta dị ukwuu na oge oghere. Ụdị cellulose ether (HPMC, HEMC, MC, wdg) na ogo nke etherification (nchịkọta nnọchi) na-emetụta kpọmkwem ihe na-emepụta ihe nkiri nke cellulose ether, na ike na ike nke ihe nkiri ahụ.
Oge nzipu: Dec-26-2022