Kodi zinthu za HDPE ndi chiyani? Kusanthula kwathunthu kwa mawonekedwe ndi ntchito za polyethylene yapamwamba kwambiri
M'makampani opanga mankhwala, HDPE ndi chinthu chofunika kwambiri, dzina lake lonse ndi High-Density Polyethylene (High-Density Polyethylene).Kodi HDPE ndi chiyani kwenikweni? Nkhaniyi ikupatsirani yankho latsatanetsatane komanso kusanthula mozama za mawonekedwe a HDPE, momwe amapangira komanso kugwiritsa ntchito kwake.
Malingaliro Oyamba ndi Kapangidwe ka Mankhwala a HDPE
HDPE ndi chiyani? Kuchokera pamawonekedwe amankhwala, HDPE ndi polima ya thermoplastic yopangidwa ndi kuwonjezera ma polymerization a ethylene monomers. Mapangidwe ake a molekyulu amadziwika ndi maunyolo aatali a polyethylene okhala ndi mamolekyu apamwamba kwambiri komanso maunyolo ochepa anthambi pakati pawo, zomwe zimapangitsa kuti ma cell apangike kwambiri. Kapangidwe ka maselo olimba kameneka kamapangitsa HDPE kukhala yolimba kwambiri m'banja la polyethylene, nthawi zambiri pakati pa 0.940 g/cm³ ndi 0.970 g/cm³.
Zapamwamba Zakuthupi za HDPE
Zinthu za HDPE zimawonetsa zinthu zambiri zabwino kwambiri chifukwa cha mawonekedwe ake apadera a maselo. Zili ndi mphamvu zambiri komanso zolimba ndipo zimatha kupirira zovuta zamakina apamwamba, zomwe zimapangitsa kuti zikhale zabwino kwambiri pamapulogalamu onyamula katundu.HDPE ili ndi kukana kwambiri kwa mankhwala, zomwe zimapangitsa kuti zikhale zothandiza kusunga mankhwala.
HDPE imakhalanso ndi kukana kwabwino kwa kutentha kochepa, komwe kumatha kukhalabe olimba m'malo otsika mpaka -40 ° C popanda kukhala brittle. Ilinso ndi zida zabwino zotchinjiriza magetsi, zomwe zapangitsa kuti azigwiritsidwa ntchito popangira mawaya ndi zingwe.
Njira zopangira HDPE ndi njira zopangira
Pambuyo pomvetsetsa kuti HDPE ndi yamtundu wanji, tiyeni tiwone momwe zimapangidwira.HDPE nthawi zambiri imapangidwa ndi njira yochepetsera mphamvu ya polymerization, mwachitsanzo, pansi pa zovuta zochepa, ndi Ziegler-Natta chothandizira kapena Phillips chothandizira monga chothandizira chachikulu, kupyolera mu gawo la mpweya, yankho. kapena njira za slurry polymerization. Njirazi zimabweretsa HDPE yokhala ndi crystallinity yotsika komanso mitengo yonyezimira kwambiri, zomwe zimapangitsa kuti pakhale polyethylene yochuluka kwambiri.
Zipangizo za HDPE zimakhala ndi mphamvu zoyendetsera bwino ndipo zimatha kupangidwa ndi njira zosiyanasiyana zopangira, monga jekeseni, kuwombera ndi kutulutsa extrusion. Zotsatira zake, HDPE ikhoza kupangidwa kukhala mitundu yambiri ya zinthu monga mapaipi, mafilimu, mabotolo ndi zotengera zapulasitiki.
Malo osiyanasiyana ogwiritsira ntchito HDPE
Chifukwa cha zinthu zambiri zabwino za HDPE, zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana. M'makampani opanga ma CD, HDPE imagwiritsidwa ntchito popanga mitundu yosiyanasiyana ya mabotolo apulasitiki, zipewa za botolo, mafilimu opangira chakudya, ndi zina zambiri. M'makampani omangamanga, HDPE imagwiritsidwa ntchito popanga mapaipi operekera madzi ndi ngalande ndi mapaipi a gasi, ndipo kuwononga kwake komanso kukana kwake kumapangitsa kuti ikhale yodalirika m'malo ovuta.
Mu gawo laulimi, HDPE imagwiritsidwa ntchito popanga mafilimu aulimi, maukonde amthunzi ndi zinthu zina, pomwe kukana kwake kwa UV ndi kulimba kwake kumatsimikizira chitetezo cha mbewu ndi zokolola.HDPE imagwiritsidwanso ntchito kwambiri popanga kusungunula kwa mawaya ndi zingwe, komanso mu mitundu yosiyanasiyana ya akasinja osamva mankhwala.
Mapeto
HDPE ndi zinthu za polima za thermoplastic zomwe zili ndi zinthu zabwino kwambiri monga mphamvu zambiri, kukana mankhwala, kukana kutentha pang'ono komanso kukonza kosavuta. Lili ndi ntchito zosiyanasiyana mu mankhwala, zomangamanga, ulimi ndi zina. Ngati mukuganizabe "zinthu za HDPE ndi chiyani", ndikuyembekeza kuti kudzera m'nkhaniyi, mukumvetsetsa bwino za mawonekedwe ndi ntchito za HDPE, HDPE mosakayikira ndi imodzi mwazinthu zofunika kwambiri pamakampani amakono.