LDPE (Low-Density Polyethylene) thiab HDPE (High-Density Polyethylene) yog ob hom yas zaj duab xis nrog cov yam ntxwv sib txawv:
Molecular Structure thiab ntom:
LDPE:LDPE muaj qhov qis dua piv rau HDPE. Nws feem ntau nyob ntawm {{0}}.910 txog 0.940 g/cm³. Qhov qis dua no muab LDPE hloov tau yooj yim dua thiab tsis tshua muaj qauv.
HDPE:HDPE muaj qhov ntom ntom dua li ntawm {{0}}.941 txog 0.965 g/cm³. Qhov siab dua no ua rau HDPE nruj dua thiab muaj zog piv rau LDPE.
Lub zog thiab tawv:
LDPE:LDPE yog hloov tau yooj yim dua thiab muaj zog elongation ntau dua, txhais tau tias nws tuaj yeem ncab ntau dua ua ntej tawg. Nws tsis tshua muaj zog thiab tsis tshua muaj zog rau tearing piv rau HDPE.
HDPE:HDPE yog qhov tawv thiab muaj zog dua. Nws muaj kev tiv thaiv zoo dua rau kev sib tsoo thiab tawg dua li LDPE. Nws kuj tseem tiv taus tshuaj lom neeg thiab muaj zog tensile ntau dua.
Kev ua thiab kev siv:
LDPE:LDPE yog qhov yooj yim rau kev ua thiab tuaj yeem tsim rau hauv cov yeeb yaj kiab nrog qhov pom tseeb zoo. Nws yog feem ntau siv rau kev ntim cov ntawv thov uas xav tau yooj yim thiab pob tshab, xws li cov hnab yas, qhwv qhwv, thiab cov yeeb yaj kiab ua liaj ua teb.
HDPE:HDPE yog siv rau qhov yuav tsum tau muaj zog thiab ua haujlwm ntev, xws li hauv cov hnab khib nyiab, cov hnab ntim hnyav, thiab geomembranes rau hauv ob sab phlu landfills thiab pas dej. Nws kuj tseem siv rau hauv lub raj mis (cov mis mis, lub raj mis detergent) thiab cov kav dej vim nws tsis kam mus rau cov tshuaj.
Environmental Impact:
Ob leeg LDPE thiab HDPE yog cov khoom siv rov ua dua tshiab, tab sis HDPE feem ntau siv dua tshiab vim nws qhov ceev thiab lub zog ntau dua, uas ua rau nws muaj txiaj ntsig zoo rau cov txheej txheem rov ua dua tshiab.
