Izingxube zidlala indima ebalulekile ekuthuthukiseni ukusebenza kokwakha udaka oluxutshwe okomile. Lokhu okulandelayo kuhlaziya futhi kuqhathanise izakhiwo eziyisisekelo zempuphu ye-latexr kanye ne-cellulose, futhi kuhlaziya ukusebenza kwemikhiqizo yodaka oluxutshwe okomile kusetshenziswa izingxube.
Impuphu ye-latex ephinde ihlakazeke
Impuphu ye-latexr ephinde ihlakazeke icutshungulwa ngokufutha nge-polymer emulsion ekhethekile. Impuphu ye-latexr eyomisiwe iyizinhlayiya eziyindilinga ezingama-80 ~ 100mm eziqoqwe ndawonye. Lezi zinhlayiya ziyancibilika emanzini futhi zakha ukuhlakazeka okuzinzile okukhulu kancane kunezinhlayiya ze-emulsion zokuqala, ezakha ifilimu ngemva kokuphelelwa amanzi emzimbeni nokomiswa.
Izindlela ezahlukene zokuguqula zenza ukuthi i-latex powder ephinde ihlakazeke ibe nezakhiwo ezahlukene njengokumelana namanzi, ukumelana ne-alkali, ukumelana nesimo sezulu kanye nokuguquguquka. I-latex powder esetshenziswa ku-mortar ingathuthukisa ukumelana nokushayisana, ukuqina, ukumelana nokuguguleka, ukulula kokwakhiwa, amandla okubopha kanye nokuhlangana, ukumelana nesimo sezulu, ukumelana nokuqandisa, ukumelana namanzi, amandla okugoba kanye namandla okuguquguquka komortar.
I-ether ye-cellulose
I-Cellulose ether yigama elijwayelekile lochungechunge lwemikhiqizo ekhiqizwa ukusabela kwe-alkali cellulose kanye ne-etherifying agent ngaphansi kwezimo ezithile. I-alkali cellulose ithathelwa indawo yi-ethers ehlukene etherifying ukuze kutholakale ama-ether e-cellulose ahlukene. Ngokwezakhiwo ze-ionization zezithasiselo, ama-ether e-cellulose angahlukaniswa ngezigaba ezimbili: i-ionic (njenge-carboxymethyl cellulose) kanye ne-non-ionic (njenge-methyl cellulose). Ngokohlobo lwe-substituent, i-cellulose ether ingahlukaniswa ibe yi-monoether (njenge-methyl cellulose) kanye ne-ether exubile (njenge-hydroxypropyl methyl cellulose). Ngokwe-solubility ehlukene, ingahlukaniswa ibe yi-soluble emanzini (njenge-hydroxyethyl cellulose) kanye ne-organic solvent-soluble (njenge-ethyl cellulose), njll. I-dry-mixed mortar ikakhulukazi i-cellulose encibilikayo emanzini, kanti i-cellulose encibilikayo emanzini ihlukaniswe ibe uhlobo olusheshayo kanye nohlobo lokuncibilika oluphathwe ubuso.
Indlela yokusebenza kwe-cellulose ether ku-mortar yile elandelayo:
(1) Ngemva kokuba i-cellulose ether esesimendeni incibilikiswe emanzini, ukusatshalaliswa okusebenzayo nokulinganayo kwezinto eziqinisayo ohlelweni kuyaqinisekiswa ngenxa yomsebenzi wobuso, kanti i-cellulose ether, njenge-colloid evikelayo, "isonga" izinhlayiya eziqinile futhi kwakheka ungqimba lwefilimu yokugcoba ebusweni bayo bangaphandle, okwenza uhlelo lwesimende luzinze kakhudlwana, futhi kuthuthukise ukugeleza kwesimende ngesikhathi senqubo yokuxuba kanye nokushelela kokwakhiwa.
(2) Ngenxa yesakhiwo sawo sama-molecule, isixazululo se-cellulose ether senza amanzi asesigqumeni angabi lula ukuwalahla, futhi kancane kancane siyawakhipha isikhathi eside, okwenza isigqumeni sibe nokugcinwa kwamanzi okuhle nokusebenza kahle.
i-fiber yokhuni
I-fiber yokhuni yenziwe ngezitshalo njengezinto eziyinhloko zokusetshenziswa futhi icutshungulwa ngochungechunge lobuchwepheshe, futhi ukusebenza kwayo kuhlukile kunokwe-cellulose ether. Izakhiwo eziyinhloko yilezi:
(1) Ayincibiliki emanzini nasezincibilikisini, futhi ayincibiliki ezixazululweni ze-asidi ebuthakathaka nezisekelo ezibuthakathaka
(2) Uma isetshenziswa ku-mortar, izohlangana ibe yisakhiwo esinezilinganiso ezintathu esimweni esingaguquki, yandise ukumelana kwe-thixotropy kanye nokuwa kwe-mortar, futhi ithuthukise ukwakheka kwayo.
(3) Ngenxa yesakhiwo se-fiber yokhuni esinezinhlangothi ezintathu, inesimo "sokuvala amanzi" ku-mortar exubile, futhi amanzi ku-mortar ngeke amuncwe noma asuswe kalula. Kodwa ayinawo amanzi amaningi okugcina i-cellulose ether.
(4) Umphumela omuhle we-capillary we-fiber yokhuni unomsebenzi "wokuhambisa amanzi" ku-mortar, okwenza ukuthi umphezulu kanye nokuqukethwe komswakama kwangaphakathi kwe-mortar kuvame ukuhambisana, ngaleyo ndlela kunciphisa imifantu ebangelwa ukuncibilika okungalingani.
(5) I-fibre yokhuni inganciphisa ukucindezeleka kokuguquguquka kwe-mortar eqinile futhi inciphise ukushwabana nokuqhekeka kwe-mortar.
Isikhathi sokuthunyelwe: Mashi-10-2023