Tawm low-density polyethylene yog ib hom kab hlau tawm uas yog thawj zaug uas ua los ntawm DuPont nyob rau hauv 1959 hauv tebchaws Canada, nrog rau cov ceg ntoo luv luv uas tsim los ntawm kev sib txuas ntawm ethylene nrog cov ntev chains ntawm olefins. Nws yog zoo li ib feem ntawm poly-olefins tsev neeg uas muaj qee yam kev txawv ntawm cov pa LDPE (Low-density polyethylene).
Feem ntau, cov kab low-density polyethylene polymers yog ua rau tsis tshua muaj siab kub thiab pressures los ntawm cov co-polymerization ethylene thiab dua alpha-olefins xws li Butene, Hexene los sis Octene. Lawv qhov kev sib txawv hauv cov txheej txheem co-polymerization kuj ua rau sib txawv ntawm molecular luj faib ntawm LDPE thiab linear low-density polyethylene resins, raws li cov polymers muaj narrower molecular luj faib tshaj LDPE polymers.
Lub cev ntawm Cov Kab Tawm Tsawg:
Tensile zog yog 30 MPA thiab lub zog qhov ua tau zoo yog 06+ kJ / m
Kev ceev yog 916 g / cm³
Tshaj siab tshaj kev khiav haujlwm yog 50 ° C
Tawm expansion muaj 20 × 10-5 / ° C
Dej nqus dej yog feem ntau yog 01%
Melting Temp. Ntau hom polymer yog 120 mus 160 ° C
Cov Kev Pab ntawm Cov Tawm Tsawg Feem Coj Polyethylene Tubes
Ntau lub zog tensile thiab siab tawg ntho siab.
Lawv muab Superior kev nyuaj siab thiab sib zog ua haujlwm.
Cov hlab no muaj kev tiv thaiv zoo heev.
Tawm low-density polyethylene tubing yog ib co impintable gasses thiab noo noo.
Lawv muaj superior dielectric zog.
Kev Nyog, Tshaj Tawm thiab Thiaj Nyog.
Muaj nyob rau hauv cov xim sib txawv xws li dub, grey, liab, ntsuab, xiav, daj, txiv kab ntxwv, ntshiab, thiab ntshav.
