Ua ntej ntawm tag nrho cov, saib cov tsos. Qhov saum npoo ntawm cov phab ntsa sab hauv thiab sab nrauv ntawm cov yeeb nkab zoo PE yog du, tiaj tus, tsis muaj npuas, kev nyuaj siab, impurities thiab lwm yam tsis xws luag; qhov saum npoo ntawm cov phab ntsa sab hauv thiab sab nrauv ntawm cov yeeb nkab tsis zoo yog tsis du, tsis ci, muaj pitting, thiab muaj ntau yam granular impurities. Sab hauv thiab sab nrauv yog markedly concave. Cov khoom zoo PE yeeb nkab yog ci thiab tiaj tus, thiab tsis yooj yim rau tawg tom qab rov folding; Cov khoom lag luam tsis zoo yog cov xim tsaus, yooj yim tawg thaum folded, thiab yog qhov tsis yooj yim. Lub flanging ntawm cov khoom zoo PE yeeb nkab yog du thiab tiaj tus, thiab tom qab sib koom ua ke, lub flanging tuaj yeem ntev dua; qhov saum npoo ntawm cov khoom tsis zoo muaj ntau qhov pores tom qab flanging. Short hem tom qab seam siab. Cov yeeb nkab zoo PE muaj cov tshuaj tsw qab me ntsis tom qab ua tiav lossis cua sov thiab yaj, thiab cov khoom tom qab txias tsis muaj ntxhiab tsw ntxhiab; cov khoom tsis zoo muaj qhov muaj zog pungent tsw. Qhov zoo PE yeeb nkab kub hnyiab thiab melts ruaj khov, nplaim taws yog lub teeb xiav, thiab tsis muaj ntxhiab tsw ntxhiab. Cov khoom lag luam tsis zoo muaj kev sib txuas tsis ruaj khov, cov kua dej tsis sib xws, thiab cov pa luam yeeb me me thiab tsw ntxhiab tsw. Oxidation induction lub sij hawm yog lub sij hawm thaum tus qauv pib mus rau autocatalytic oxidation cov tshuaj tiv thaiv nyob rau hauv lub kub kub oxygen tej yam kev mob, thiab nws yog ib tug Performance index los ntsuam xyuas lub thermal degradation peev xwm ntawm cov ntaub ntawv thaum lub sij hawm molding, cia, vuam thiab siv. Lub sijhawm ntev oxidation induction, qhov zoo dua qhov kev laus ntawm cov khoom thiab qhov ua tau zoo dua.
