Cov yas pallets tam sim no feem ntau yog ua los ntawm HDPE, thiab cov qib sib txawv ntawm HDPE muaj cov yam ntxwv sib txawv. Cov yam ntxwv tshwj xeeb ntawm HDPE yog kev sib xyaw ua ke ntawm plaub qhov sib txawv yooj yim: qhov ceev, qhov hnyav molecular, qhov hnyav molecular faib thiab cov khoom ntxiv. Cov catalysts sib txawv yog siv los tsim cov polymers kev ua tau zoo tshwj xeeb. Cov hloov pauv no tau sib xyaw ua ke los tsim cov qib HDPE rau ntau lub hom phiaj, ua tiav qhov sib npaug hauv kev ua tau zoo.
Hauv kev tsim khoom thiab ua cov yas pallets tiag tiag, qhov zoo ntawm cov hloov pauv tseem ceeb no muaj feem cuam tshuam rau ib leeg. Peb paub tias ethylene yog cov khoom siv tseem ceeb rau polyethylene, thiab ob peb lwm cov comonomers, xws li 1-butene, 1-hexene lossis 1-octene, kuj feem ntau siv los txhim kho cov khoom polymer. Rau HDPE, cov ntsiab lus ntawm ob peb monomers saum toj no feem ntau tsis pub tshaj 1% -2%. Kev ntxiv cov comonomers me ntsis txo qhov crystallinity ntawm polymer. Qhov kev hloov pauv no feem ntau ntsuas los ntawm qhov ceev, thiab qhov ceev yog linearly cuam tshuam nrog crystallinity.
Qhov tseeb, qhov sib txawv ntawm HDPE yuav tsim qhov sib txawv tseem ceeb hauv kev ua tau zoo ntawm cov yas pallets ua. Qhov ceev ntawm cov polyethylene nruab nrab (MDPE) ntau ntawm 0.926 txog 0.940g / CC. Lwm cov kev faib tawm qee zaum faib MDPE ua HDPE lossis LLDPE. Homopolymers muaj qhov ceev tshaj plaws, qhov tawv, qhov tsis zoo thiab qhov chaw yaj siab tshaj plaws.
Feem ntau thaum ua cov yas pallets, qee cov khoom ntxiv feem ntau xav tau los xyuas kom meej tias muaj kev ua tau zoo. Kev siv tshwj xeeb xav tau cov qauv ntxiv tshwj xeeb, xws li ntxiv cov tshuaj antioxidants kom tiv thaiv kev puas tsuaj ntawm polymer thaum lub sijhawm ua thiab tiv thaiv kev oxidation ntawm cov khoom tiav thaum lub sijhawm siv. Cov tshuaj ntxiv antistatic yog siv rau hauv ntau qib ntim khoom kom txo qhov kev nplaum ntawm hmoov av thiab av rau lub raj mis lossis ntim khoom.
Tsis tas li ntawd xwb, txhawm rau kom ntseeg tau tias cov yas pallets zoo, yuav tsum tau saib xyuas ntau dua rau kev ntim khoom thiab khaws cov khoom siv raw. Feem ntau thaum khaws cov ntaub ntawv HDPE, nws yuav tsum nyob deb ntawm cov qhov chaw hluav taws, rwb thaiv tsev, thiab lub tsev rau khoom yuav tsum khaws cia kom qhuav thiab huv si. Nws raug txwv tsis pub sib tov cov khoom tsis huv, thiab nws raug txwv tsis pub raug tshav ntuj thiab nag. Tsis tas li ntawd xwb, thaum lub sijhawm thauj mus los, nws yuav tsum khaws cia rau hauv lub tsheb thauj khoom huv, qhuav thiab npog, thiab tsis pub siv cov khoom ntse xws li cov ntsia hlau.
Lub sijhawm tshaj tawm: Lub Xya Hli-04-2025
