1. Pab tsim txoj kev nruj thiab tawv. Qhov nce ntawm cov iav fiber ntau tuaj yeem ua rau muaj zog thiab nruj ntawm cov yas, tab sis cov tawv ntawm cov yas tib yam yuav txo qis. Piv txwv: flexural modulus;
2. Txhim kho kub tsis kam ua kom sov thiab kub ua kom tsis sov; coj cov nylon ua piv txwv, nce rau fiberglass nylon, qhov kub hloov lub tshav kub yog qhov tsawg kawg yog ob npaug, cov iav dav dav siv tam nylon kub tuaj yeem ncav cuag 220 degrees lossis ntau dua
3. Txhim kho qhov ntev seem ruaj khov thiab txo qis ntsws;
4. Txo kev ua tsov rog tsis txaus deformation;
5. Txo cov tsiaj me;
6. Cov nplaim taws rov ua tau zoo vim cov nplais nyhuv, yuav cuam tshuam rau cov nplaim rov ua kom zoo dua qub, cuam tshuam rau cov nplaim retardant nyhuv;
7. Txo qhov ci ntawm lub ntsej muag;
8. nce hygroscopicity;
9. Cov iav fiber kho: qhov ntev ntawm cov iav fiber ncaj qha cuam tshuam lub brittleness ntawm cov khoom. Yog tias cov fiberglass tsis ua haujlwm zoo, lub plawg fiber ntau yuav txo qhov kev cuam tshuam lub zog, thiab kev kho cov fiber ntau ntev ntev yuav ua rau lub zog muaj zog. Txhawm rau ua kom lub brittleness ntawm cov ntaub ntawv kom tsis txhob poob zoo heev, nws yog ib qhov tsim nyog los xaiv qee qhov ntev ntawm cov iav fiber.
