Yuav ua li cas thiaj ua qhov yooj yim ntawm cov khoom zoo thiab tsis zoo:
Saib ntawm qhov tsos
1. Saib seb qhov khoom tiav thiab tsis tiav.
2. Seb qhov xim yog tsis muaj xim, txawm tias muaj xim muaj qhov sib txawv, seb xim puas yog qaim thiab kajsiab.
Kov khoom
1. Kov cov nplais ntawm cov khoom nrog tes kom pom tias nws yog tus du.
2. Seb lub rooj sib txoos sib kho zoo li cas thiab qhov teebmeem muaj kev ruaj ntseg.
3. Txawm hais tias qhov khoom qub lawm laus zuj zus lawm, cov laus yog cov khoom hauv cov khoom tawv thiab tsis muaj zog, thiab qhov zoo ntawm qhov khoom muag thiab muag muag.
toughness
Raws li qhov nyhav
1. Nyhav nyhav. Nyob rau hauv cov nqe lus ntawm polymerization txheej txheem thiab lub cev cov khoom ntawm raw cov ntaub ntawv, qhov feem cuam yog lub teeb, qhia tias tsawg crystallinity, siab purity thiab impurity.
tsawg dua
2. Cov khoom uas muaj tib lub qauv thiab tib lub phab ntsa thickness yog tsim nrog raw cov ntaub ntawv thiab tshuab. Dhau li ntawm cov lus hais saum toj no, qhov nyhav yog qhov nyhav.