Izingxube zidlala indima ebalulekile ekuthuthukiseni ukusebenza kokwakha udaka oluxutshwe okomile. Lokhu okulandelayo kuhlaziya futhi kuqhathanise izakhiwo eziyisisekelo zempuphu ye-latex ne-cellulose, futhi kuhlaziya ukusebenza kwemikhiqizo yodaka oluxutshwe okomile kusetshenziswa izingxube.
Impuphu ye-latex ephinde ihlakazeke
Impuphu ye-latex ephinde ihlakazekeicutshungulwa ngokufuthwa komoya kwe-polymer emulsion ekhethekile. Impuphu ye-latex eyomisiwe iyizinhlayiya eziyindilinga ezingama-80 ~ 100mm eziqoqwe ndawonye. Lezi zinhlayiya ziyancibilika emanzini futhi zakha ukuhlakazeka okuzinzile okukhulu kancane kunezinhlayiya zokuqala ze-emulsion, 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) Ngemvai-cellulose etherUma i-mortar incibilikiswa emanzini, ukusatshalaliswa okusebenzayo nokulinganayo kwezinto eziqinisayo ohlelweni kuqinisekiswa ngenxa yomsebenzi wobuso, kanti i-cellulose ether, njenge-colloid evikelayo, "isonga" izinhlayiya eziqinile futhi Kukhiwa ungqimba lwefilimu yokugcoba ebusweni bayo bangaphandle, okwenza uhlelo lwe-mortar luzinze kakhudlwana, futhi kuthuthukise ukugeleza kwe-mortar 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-fibre 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: Ephreli-25-2024