Cov khoom siv raw thiab nws daim ntawv thov: Cov iav fiber muaj qhov kub dua dua li cov organic fiber, tsis sib haum, tiv thaiv corrosion, zoo cua sov thiab suab rwb thaiv tsev, siab tensile lub zog, thiab zoo hluav taws xob rwb thaiv tsev. Tab sis nws yog nkig thiab tsis zoo hnav tsis kam. Nws yog siv los ua cov plastics muaj zog (saib duab xim) lossis roj hmab txhawb ntxiv. Raws li cov khoom coj ua kom muaj zog, iav fiber muaj cov yam ntxwv nram qab no. Cov yam ntxwv no ua rau kev siv cov iav fiber ntau deb dua li lwm hom fiber ntau, thiab nws txoj kev loj hlob tau kuj dhau deb. Nws cov yam ntxwv yog teev raws li hauv qab no:
(1) Lub zog tensile muaj zog thiab tsawg elongation (3%).
Iav fiber txiav xov
(2) High elastic coefficient thiab zoo rigidity.
(3) elongation yog loj hauv qhov tsis pub dhau elastic thiab lub zog tensile loj, yog li qhov cuam tshuam rau lub zog yog loj.
(4) Nws yog cov roj ntsha inorganic nrog uas tsis sib txuas thiab zoo tshuaj lom neeg.
(5) Kev nqus dej tsawg.
(6) Muaj qhov ruaj khov seem thiab kub tsis kam yog qhov zoo.
