Kub yaj nplaum nplaum yog ib qho hnyav-dawb, cov nplaum nplaum ua los ntawm yaj- sib xyaw cov thermoplastic resins los yog cov thermoplastic elastomers nrog ntxiv plasticizers, tackifying resins, antioxidants, nplaim retardants, thiab fillers. Vim nws tsis yog - tshuaj lom, ib puag ncig tus phooj ywg, thiab yooj yim - los - npaj qhov zoo, nws tau dhau los ua kev txhim kho tseem ceeb hauv kev ua lag luam nplaum. Kev tsim khoom txhua xyoo thoob ntiaj teb tau nce siab, nrog kev loj hlob siab tshaj plaws ntawm txhua hom nplaum, ua rau muaj ntau yam ntxiv thiab kev siv dav.
Ethylene vinyl acetate copolymer (EVA) kub yaj nplaum nplaum yog ib qho yooj yim los npaj thiab siv dav hauv kev ntim khoom, rooj tog tsim, shoemaking, zoo meej khi, sib txuas cov khoom siv hluav taws xob, thiab cov khoom siv niaj hnub. Nws tau dhau los ua cov khoom siv dav tshaj plaws thiab siv hom kub yaj nplaum nplaum. DuPont pioneered industrial ntau lawm ntawm cov khoom nyob rau hauv 1960, naming nws Elvax. Tom qab ntawd, cov tuam txhab xws li UCC, USI, Bayer, ICI, thiab Monsanto kuj tsim cov khoom no. EVA kub yaj nplaum nplaum muaj kev sib koom ua ke zoo thiab tsis tshua muaj molten nto nro. Nws muaj cov nplaum nplaum kub rau yuav luag txhua yam khoom thiab muaj cov tshuaj tiv thaiv zoo heev, thermal stability, huab cua tsis kam thiab hluav taws xob. Nws yog ceev hauv kev sib txuas, siv dav, tsis yog - lom thiab muaj kuab paug- dawb, thiab yog li hu ua "green adhesive", nyiam ntau thiab ntau dua.
