Lub duav (siab cuam tshuam polystyrene) cov ntawv qhia yog thermopicastic cov ntaub ntawv paub rau lawv cov kev cuam tshuam zoo heev, thiab tus nqi kim heev. Lawv siv dav hauv ntim, luam ntawv, tso saib, thiab cov ntawv thov thermoforming.
Tsis yog, lub duav yas yog suav hais tias yog cov khoom siv tsawg-piv rau lwm yam kev ua tshuab plastics. Nws muab kev sib npaug zoo ntawm kev pheej yig thiab kev ua tau zoo, ua rau nws zoo tagnrho rau cov ntawv thov pob nyiaj siv.
Thaum lub duav yog ntau yam, nws muaj qee qhov kev txwv:
Qis UV Kuj (tuaj yeem txwv nyob rau hauv lub hnub ci)
Tsis haum rau cov ntawv thov kub siab
Hmoov lom neeg tshuaj tiv thaiv piv rau lwm cov plastics
Hips yog ib daim ntawv hloov kho ntawm polystyrene. Cov qauv polystyrene yog nkig, tab sis lub duav, suav nrog roj hmab ntxiv kom txhim kho kev cuam tshuam tiv thaiv kev cuam tshuam. Yog li thaum lawv muaj feem xyuam, lub duav yog cov tawv me thiab muaj lub zog ruaj khov dua li cov polystyrene li niaj zaus.
Nws nyob ntawm daim ntawv thov:
HDPE muaj cov tshuaj zoo dua thiab UV kuj, thiab hloov tau yooj yim dua.
Hips yoojyim rau luam tawm thiab tau muaj kev ruaj khov zoo dua rau kev siv thiab kos npe.
Raws li cov neeg tuaj yeem tso cai (txias, qhuav qhov chaw kom deb ntawm lub hnub ncaj qha), hips daim ntawv muaj peev xwm ua tau ntau xyoo. Txawm li cas los xij, lub caij nyoog raug rau UV teeb lossis noo noo tuaj yeem cuam tshuam lawv cov khoom siv.
Thaum lub duav yog siv rau hauv cov ntawv thov kev lag luam, lub duav tsis haum rau kev mob impants xws li kev hloov hauv caug. Cov ntaub ntawv xws li Titanium alloys thiab ultra-high-molecular-phaus polyethylene (UHMWPE (UHMWPE) yog nyiam rau lawv cov biocompatibility thiab kev ua tau ntev ntev.
Lub duav tuaj yeem thuam lub sijhawm vim:
UV Raug (Ua rau Brittleness thiab kev tshem tawm)
Thaum Tshav Kub Kub thiab Vaum
Neeg tsis muaj kev cia siab
Txhawm rau ncua txee lub neej, khaws hips daim ntawv nyob hauv ib puag ncig tswj hwm.