Pe hnab yog ib lub hnab yas, kev siv cov ntaub ntawv yog polyethylene, cov khoom siv no tsis tsuas yog cov tshuaj lom thiab tsis qab thiab zoo heev, tseem ceeb dua, tuaj yeem ua tau raws li cov qauv ntawm cov khoom noj khoom haus. PP lub hnab yog ua los ntawm cov khoom siv los ntawm polypropylene, kev siv cov txheej txheem ntau lawm yog xim xim thiab offset printing. Ntawd Pe hnab nrog PP hnab thaum kawg qhov txawv ntawm nws?
Ua ntej tshaj plaws, ntawm ob qhov kev xav txawv: Pe hnab yog mos, tes zoo nkaus li zoo nkaus li siv quav ciab, Rally muaj zog, txawm tias lub kneading tsis yog li cas, PP hnab ntau dua nkig, yooj yim tawg, tus interface yog feem ntau kub yaj, kneading lus yuav wrinkled.
Thib ob, cov yam ntxwv ntawm ob yog tsis zoo tib yam: lub hnab ntim tsis tau saj, tsis muaj tshuaj lom, nrog rau lub zog ua kom tsis muaj zog, thiab cov khoom siv tshuaj muaj zog ruaj khov, ntsib kev qaug zog thiab alkali yuav tsis hloov, thaum sov li qhov kev hnyav tag nrho yuav tsis qhuav, thiab dej haus tsawg, tab sis kuj muaj hluav taws xob zoo zoo, tab sis kev tiv thaiv kev laus tsis zoo heev. PP lub hnab muaj cov khoom sib xyaw kom zoo, zoo toughness, tej zaum kuj zoo dua, nyob hauv cov kua qaub thiab alkali thiab cov organic solvents yuav tsis hloov.
Tsis tas li ntawd, kev siv ntawm qhov ntau ntawm ob qho tsis zoo ib yam, cov hnab ntim nrog ntau lub hnab yas muaj qee zaj duab xis, tab sis kev siv pp hnab ntau dua hauv qee lub lag luam, rau ntau yam khoom noj thiab dej haus, thiab lwm yam. Npaj ntim zoo.
