Zomata za matailosi zimagwira ntchito yofunika kwambiri pantchito yomanga, kupereka njira zokhazikika komanso zokongola zomata matailosi kumalo osiyanasiyana. Kuchita bwino kwa zomatira za matailosi kumadalira kwambiri zomwe zili muzowonjezera zazikulu, zomwe ma polima opangidwanso ndi cellulose ndizo zigawo ziwiri zazikulu.
1. Ma polima otayikanso:
1.1 Tanthauzo ndi katundu:
Redispersible ma polima ndi ufa zina zopezedwa ndi kutsitsi kuyanika polima emulsions kapena dispersions. Ma polima awa nthawi zambiri amakhala opangidwa ndi vinyl acetate, ethylene, acrylics kapena copolymers ena. Fomu ya ufa ndi yosavuta kugwiritsira ntchito ndipo imatha kuphatikizidwa muzitsulo zomatira matayala.
1.2 Kupititsa patsogolo kumamatira:
Ma polima opangidwanso amathandizira kwambiri kumamatira kwa zomatira kumagulu osiyanasiyana. Polima imauma kuti ipange filimu yosinthika, yomata yomwe imapanga mgwirizano wamphamvu pakati pa zomatira ndi matailosi ndi gawo lapansi. Kumamatira kowonjezereka kumeneku ndikofunikira kuti tilepheretse moyo wautali komanso bata.
1.3 Kusinthasintha ndi kukana kwa crack:
Kuwonjezera pa redispersible polima amapereka matailosi zomatira kusinthasintha, kulola kuti agwirizane ndi kayendedwe ka gawo lapansi popanda kusweka. Kusinthasintha kumeneku n'kofunika makamaka m'madera omwe kutentha kumasintha kapena kusintha kwapangidwe kungatheke, kuteteza mapangidwe a ming'alu yomwe ingasokoneze kukhulupirika kwa pamwamba pa matayala.
1.4 Kukana madzi:
Ma polima opangidwanso amathandizira kukana kwamadzi kwa zomatira matailosi. Filimu ya polima yomwe imapanga pamene ikuuma imakhala ngati chotchinga, kuteteza madzi kuti asalowe ndipo motero amateteza mgwirizano. Izi ndizofunikira makamaka m'malo achinyezi monga mabafa ndi makhitchini, momwe chinyezi chimakhala chambiri.
1.5 Kukhazikika ndi maola otsegulira:
Makhalidwe a rheological a ma polima opangidwanso amatenga gawo lofunikira pakugwiritsa ntchito zomatira matailosi. Zimathandizira kukhazikika koyenera ndikuwonetsetsa kugwiritsa ntchito mosavuta. Kuphatikiza apo, polima yopangidwanso imathandizira kukulitsa nthawi yotseguka ya zomatira, kupatsa oyika nthawi yokwanira kuti asinthe malo a matailosi asanakhazikike zomatira.
2. Ma cellulose:
2.1 Tanthauzo ndi mitundu:
Cellulose ndi polima wachilengedwe wopangidwa kuchokera ku makoma a cell cell ndipo nthawi zambiri amagwiritsidwa ntchito ngati chowonjezera pazomatira matailosi. Ma cellulose ethers, monga methylcellulose (MC) ndi hydroxyethylcellulose (HEC), amagwiritsidwa ntchito mobwerezabwereza chifukwa cha kusungidwa kwawo bwino kwa madzi komanso kukhuthala kwawo.
2.2 Kusunga madzi:
Imodzi mwa ntchito zazikulu za cellulose mu zomatira matailosi ndikutha kusunga madzi. Mbali imeneyi imakulitsa nthawi yotseguka ya zomatira, potero kukulitsa kuthekera. Ma cellulose akamayamwa madzi, amapanga mawonekedwe ngati gel omwe amalepheretsa zomatira kuti zisaume mwachangu panthawi yopaka.
2.3 Sinthani processability ndi sag kukana:
Cellulose imathandizira kugwira ntchito kwa zomatira matailosi popewa kugwada pakayimitsidwa. Kuchulukana kwa cellulose kumathandizira zomatira kukhalabe mawonekedwe ake pakhoma, kuonetsetsa kuti matailosi amamatira mofanana popanda kugwa.
2.4 Chepetsani kuchepa:
Ma cellulose amatha kuchepetsa kuchepa kwa zomatira matailosi panthawi yowuma. Izi ndizofunikira chifukwa kuchepa kwakukulu kungayambitse kupangika kwa voids ndi ming'alu, kusokoneza kukhulupirika kwathunthu kwa mgwirizano.
2.5 Mphamvu yamphamvu yamanjenje:
Zomata za matailosi zimakhala ndi cellulose kuti ziwonjezere mphamvu zawo. Izi ndizofunikira makamaka m'madera omwe ali ndi katundu wolemetsa kapena kupanikizika, chifukwa zimathandiza kuti pakhale kukhazikika komanso kugwira ntchito kwa tile pamwamba.
3. Synergistic zotsatira za redispersible polima ndi mapadi:
3.1 Kugwirizana:
Redispersible ma polima ndi mapadi nthawi zambiri amasankhidwa kuti azigwirizana wina ndi mzake ndi zosakaniza zina mu kapangidwe zomatira matailosi. Kugwirizana kumeneku kumatsimikizira kusakaniza kofanana komwe kumakulitsa phindu la chowonjezera chilichonse.
3.2 Kuphatikiza kogwirizana:
Kuphatikiza kwa redispersible polima ndi mapadi kumapanga synergistic zotsatira kugwirizana. Mafilimu osinthika opangidwa kuchokera ku ma polima opangidwanso amathandizira kusunga madzi ndi kukhuthala kwa cellulose, zomwe zimapangitsa kuti pakhale zomatira zolimba, zolimba komanso zogwira ntchito.
3.3 Kuchita bwino:
The redispersible polima ndi mapadi palimodzi amawongolera magwiridwe antchito onse a zomatira matailosi, kupereka kumamatira kwabwino, kusinthasintha, kukana madzi, kutheka komanso kulimba. Kuphatikiza uku ndikopindulitsa kwambiri komanso kofunikira pamapulogalamu omwe amafunikira mgwirizano wodalirika komanso wokhalitsa.
Kuphatikizira ma polima opangidwanso ndi cellulose mu zomatira matailosi ndi njira yabwino komanso yotsimikizika pantchito yomanga. Zowonjezera izi zimagwira ntchito yofunika kwambiri pakulimbikitsa kumamatira, kusinthasintha, kukana madzi, kusinthika ndi kukhazikika kwa nthawi yaitali. Kugwirizana pakati pa ma polima opangidwanso ndi ma cellulose kumabweretsa zomata zokhazikika zomwe zimakwaniritsa zofunikira zamapulojekiti amakono. Pamene ukadaulo ndi kafukufuku zikupitilirabe patsogolo, zatsopano zomangira matayala zikuyembekezeredwa kuchitika, ndikugogomezera kukulitsa magwiridwe antchito ndi kukhazikika kwa zida zomangira zofunikazi.
Nthawi yotumiza: Dec-26-2023