Mayelana nenani le-latex evuselelayo ye-latex evukweni ngodaka, amakhasimende amaningi akhathazekile ngokulandelayo. Isingeniso esifushane: I-Redisperible Featx Powder ingathuthukisa kakhulu ukunamathela phakathi kodaka nesisekelo, kepha futhi izokwehlisa ukumelana kwamanzi ngodaka. ucansi. Ukuphindisela kwamanzi kungathuthukisa ngempumelelo amandla kadaka ukuze umelane namanzi angcindezi ancanyana, kepha ukuphindisela kwamanzi kunganciphisa ukuhlangana kodaka. Ngakho-ke, lapho kwakha imikhiqizo yodaka yodaka oluhlanganisiwe, kufanele sibheke ngokugcwele ithonya lengxenye ngayinye kwizinkomba zokusebenza kodaka, futhi inqume ifomula ethuthukisiwe yodaka ngodaka ngokuhlola. I-FATTEX evuselelayo ye-latex ingathuthukisa kakhulu amandla webhondi lodaka. Ngenxa yentengo ephezulu ye-latex ye-latex ye-latex evuselelekayo, enkulu umthamo, ukukhuphuka kwezindleko zodaka oluxutshwe, ngakho-ke kumele lubhekwe ngezindleko. Amandla e-High Bond angavimbela i-shrinkage ngezinga elithile, futhi ingcindezi ekhishwe yi-deformation kulula ukuhlakazeka nokukhululwa. Ngakho-ke, amandla e-bond kubaluleke kakhulu ukuthuthukisa ukumelana nokuqhekeka.
Ucwaningo lukhombisa ukuthi umphumela we-synerfistic we-cellulose ether ne-ruble powder kuyazuzisa ukuthuthukisa amandla ebhondi kasimende kasimende. Ngokunyuka kwenani le-polymer powder ehlakazekile, amandla ebhondi anda kancane kancane. Lapho inani le-latex powder lalilincane, amandla ebhondi akhuphuke kakhulu ngokunyuka kwenani le-latex powder. Isibonelo, lapho inani le-latex powder lingu-2%, amandla okubopha afinyelela ku-0182mpa, ahlangabezane nesidingo esijwayelekile sikazwelonke se-0160MPA. Thatha i-putty powder njengesibonelo: Ukungeza i-latex powder kungathuthukisa kakhulu amandla okubopha ama-putty kanye ne-capillate, ngoba i-hydrophilic latex tument ingena kwi-pores kanye ne-capillaries ye-matrix ndawonye, futhi i-latex powder ingena kuma-pores kanye nama-capillaries. Ifilimu yakheka ku-capillary futhi i-adsorbed eqinile ebusweni be-substrate, ngaleyo ndlela iqinisekise amandla amahle ebhondi phakathi kokufakazelwa kohlamvu kanye ne-substrate. Lapho uPutty esuswa epuletini lokuhlola, futhi kwatholakala ukuthi ukwanda kwenani le-satex powder kwathuthukisa ukunamathela kwe-putTrete. Kepha uma inani le-latex powder lidlula u-4%, umkhuba owandayo wamandla we-bond wehlisa. Hhayi nje kuphela i-latex tablex ye-latex, kodwa futhi nezinto ezi-inorganic ezinjengesimende kanye ne-calcium calbonate ye-calcium enamandla zinikela ngamandla anamathela ama-putty, ngakho-ke amandla anamathela awakhombisi umthetho we-latex powder.
Ukumelana kwamanzi kanye nokuphikiswa kwe-alkali ye-putty kuyinkomba ebalulekile yokuhlola ukwahlulela ukuthi ngabe uPuterty angasetshenziswa yini njengokumelana kwamanzi odongeni lwangaphakathi noma udonga lwangaphandle. Lapho inani le-latex powder lalingaphansi kune-4%, ngokwanda kwenani le-towx ye-latex, ukuvalwa kwamanzi kwakhombisa ukuthambekela phansi, futhi umphumela wasobala. Lapho umthamo ungaphezulu kwama-4%, izinga lokufakwa kwamanzi lincipha kancane. Isizathu ukuthi usimende usetshenziswa njengento ebophayo ku-putty. Lapho i-polymer polymer powder engangeziwe, kunezinto eziningi ezingenamthelela ohlelweni. Kungakha ifilimu ukuvimba izikhala kuhlelo lwe-tutty, ukuze ungqimba olungaphezulu lwe-putty lungakha ifilimu elidonswayo ngemuva kokubhidlizwa futhi zomiswe ngempumelelo ukufakwa kwamanzi, futhi kuvikele ngempumelelo ukufakwa kwamanzi, futhi kuthuthukise ukumelana kwamanzi. Lapho inani le-latex powder lifinyelela ku-4%, i-polymer emulsion ngemuva kwempuphu ye-latex ehlelekile ingagcwalisa ngokuphelele i-voidty ohlelweni lwe-putty futhi yakha ifilimu eliphelele nelibutheni, ukuze ukumuncwa kwamanzi kwe-putty kuncipha ekukhuphukeni kwenani le-towx ye-latex. Ukwanda kuba isicaba.
Uma kucatshangelwa ithonya le-latex powder kumandla e-bonding kanye nokumelana kwamanzi kwe-putty, kanye nokucatshangelwa kwentengo ye-latex powder, inani elifanele kakhulu le-4% kuya ku-4%, futhi i-putty inamandla amakhulu okumelana nokuphikiswa kwamanzi. I-emulsion polymer ngemuva kokubuyiselwa emuva kwe-latex powder ingagcwalisa ama-voids ohlelweni lwe-putty futhi yakha ifilimu ephelele, ngakho-ke izinto ezibonakalayo kulo lonke uhlelo lwe-tutty zingahlanganiswa ngokuphelele, ngakho-ke azinazo izinyembezi, ngakho-ke zinganciphisa kakhulu inani le-putty. ukumuncwa kwamanzi.
Isikhathi sePosi: Feb-20-2025