Qhov Tseem Ceeb - Nitrile vs Latex
Latex thiab nitrile latex yog polymeric dispersions uas muaj ntau yam kev siv. Lo lus 'latex' yog siv los txhais ntau yam ntawm latices, uas suav nrog ob qho tib si ntuj thiab hluavtaws latices whereas lo lus 'nitrile' yog siv rau NBR (acrylonitrile butadiene roj hmab) latex. Qhov no yog qhov sib txawv tseem ceeb ntawm nitrile thiab latex. Feem ntau, ob daim ntawv muaj nyob hauv cov kua hauv qhov xwm txheej thiab tuaj yeem ua tiav kom tau cov khoom siv polymeric.
Nitrile yog dab tsi?
Nitrile yog lub npe nrov rau NBR latex, uas ua los ntawm copolymer ntawm acrylonitrile thiab butadiene. Nitrile latex yog tsim los ntawm cov txheej txheem hu ua emulsion polymerization. Kev tsim khoom yog ib qho batch lossis cov txheej txheem txuas ntxiv. Daim ntawv latex ntawm nitrile yog terpolymer ntawm acrylonitrile, butadiene, thiab methacrylic acid thiab feem ntau hu ua carboxylated NBR lattices. Nitrile latex muaj cov ntsiab lus siab butadiene uas sawv cev rau 55-70%, thaum cov ntsiab lus acrylonitrile thiab methacrylic yog 25-50% thiab 3-6% feem.
Khoom thiab kev siv ntawm Nitrile
Nitrile roj hmab qhia tau zoo heev rau cov kuab tshuaj, roj, roj, thiab roj. Ntxiv mus, nws muaj qhov zoo abrasion resistant, high degree ntawm toughness thiab bonds rau ntau hom substrates. Nitrile roj hmab feem ntau yog siv los ua cov khoom siv tseem ceeb rau cov hnab looj tes latex pov tseg thiab cov ntaub ntawv thiab cov khoom siv tsis-woven. Nws kuj yog siv los tsim cov tawv hluavtaws, cov nplaum (los ntawm kev sib xyaw nrog phenolic thiab epoxy resin emulsions), coatings, sealants, thiab ua ib qho ntxiv rau cov roj tar thiab asph alt. Vim nws txoj kev siv dav dav, cov roj hmab nitrile tau dhau los ua ib qho ntawm cov neeg sib tw tseem ceeb ntawm cov roj hmab latex.
NBR latex tshuaj qauv
Luas yog dab tsi?
Latex yog colloidal dispersion, uas feem ntau muaj cov khoom polymeric nrog ob peb puas nanometers hauv txoj kab uas hla thiab dej. Dej yog qhov nruab nrab dispersion ntawm cov khoom polymeric. Colloid feem feem ntau muaj li ntawm 50% los ntawm qhov hnyav ntawm qhov tawg. Muaj ob hom latex, uas yog; natural thiab hluavtaws latex. Lub ntuj latex feem ntau yog cov roj hmab latex, uas yog sau los ntawm ib tsob ntoo hu ua Hevea brasiliensis. Feem ntau ntawm cov khoom xyaw tseem ceeb ntawm hluavtaws latices tau txais los ntawm cov khoom siv roj av. Qee qhov piv txwv rau cov khoom siv hluavtaws muaj xws li nitrile latex, polychloroprene latex, styrene-butadiene roj hmab latex, acrylic latex, butyl latex, chlorosulfonated polyethylene latex, thiab lwm yam.
Daim ntawv thov ntawm Latex
Owing rau cov khoom tshwj xeeb ntawm cov latices, lawv tau siv rau ntau daim ntawv thov. Cov ntawv thov rau latex muaj xws li xim thiab txheej, nplaum, sealants, hloov asph alt, ntim khoom (tsim lub hnab, hnab ntawv, raj, thiab lwm yam), textile thiab nonwovens, rooj tog (tsim ua npuas ncauj hauv ncoo, ua npuas ncauj, thiab lwm yam), cov neeg siv khoom cov khoom, ntawv thiab lwm yam kev siv (hnab looj tes, tsheb inks, thiab lwm yam).
Natural roj hmab latex
Nitrile thiab Latex txawv li cas?
Definition:
Latex yog ib lo lus dav siv rau polymeric colloidal dispersions.
Nitrile yog ib lub npe rau acrylonitrile butadiene roj hmab latex.
Composition:
Latex feem ntau muaj cov polymeric colloids (kwv yees li 50%) thiab dej lossis lwm yam hnyav raws li qhov nruab nrab dispersion.
Nitrile latex suav nrog butadiene (55-70%), acrylonitrile (25-50%) thiab methacrylic (3-6%).
Daim ntawv thov:
Latex muaj ntau yam kev siv hauv kev tsim cov xim thiab txheej, cov khoom siv, cov ntaub ntawv ntim, textiles thiab nonwovens, rooj tog, cov khoom siv, cov ntaub ntawv thiab lwm yam khoom.
Nitrile latex yog siv los tsim cov hnab looj tes latex, textile thiab non-woven reinforcement, hluavtaws tawv, adhesives (los ntawm kev sib xyaw nrog phenolic thiab epoxy resin emulsions), coatings, sealants, thiab additive rau thee tar thiab asph alt.
