Pallets za pulasitiki pano zimapangidwa makamaka ndi HDPE, ndipo magulu osiyanasiyana a HDPE ali ndi zinthu zosiyanasiyana. Makhalidwe apadera a HDPE ndi kuphatikiza koyenera kwa mitundu inayi: kachulukidwe, kulemera kwa maselo, kugawa kwa maselo ndi zowonjezera. Zothandizira zosiyanasiyana zimagwiritsidwa ntchito kupanga ma polima osankhidwa mwapadera. Zosinthazi zimaphatikizidwa kuti zipange magiredi a HDPE pazolinga zosiyanasiyana, kukwaniritsa magwiridwe antchito.
Pakupanga kwenikweni ndi kukonza ma pallets apulasitiki, mtundu wamitundu yayikuluyi umakhudza wina ndi mnzake. Tikudziwa kuti ethylene ndiye chinthu chachikulu chopangira polyethylene, ndipo ma comonomers ena ochepa, monga 1-butene, 1-hexene kapena 1-octene, amagwiritsidwanso ntchito nthawi zambiri kukonza ma polima. Kwa HDPE, zomwe zili m'ma monomer ochepa pamwambapa nthawi zambiri sizidutsa 1% -2%. Kuphatikiza kwa ma comonomers kumachepetsa pang'ono crystallinity ya polima. Kusintha kumeneku kumayesedwa ndi kachulukidwe, ndipo kachulukidwe kamakhala kogwirizana ndi crystallinity.
M'malo mwake, kachulukidwe kosiyanasiyana kwa HDPE kudzatulutsa kusiyana kwakukulu pakuchita kwa mapaleti apulasitiki opangidwa. Kachulukidwe wa polyethylene wapakatikati (MDPE) amayambira 0.926 mpaka 0.940g/CC. Zigawo zina nthawi zina zimayika MDPE ngati HDPE kapena LLDPE. Ma homopolymers ali ndi kachulukidwe kwambiri, kuuma, kusasunthika kwabwino komanso malo osungunuka kwambiri.
Nthawi zambiri popanga ma pallets apulasitiki, zowonjezera zina zimafunikira nthawi zambiri kuti zitsimikizire kuti zikuyenda bwino. Kugwiritsa ntchito kwina kumafunikira zowonjezera zowonjezera, monga kuwonjezera kwa ma antioxidants kuti ateteze kuwonongeka kwa polima panthawi yokonza ndikuletsa makutidwe ndi okosijeni a chinthu chomwe chamalizidwa pakugwiritsa ntchito. Zowonjezera za antistatic zimagwiritsidwa ntchito m'makalasi ambiri onyamula kuti achepetse kumamatira kwa fumbi ndi dothi kumabotolo kapena zonyamula.
Kuonjezera apo, pofuna kuonetsetsa kuti mapepala apulasitiki ali abwino, chidwi chachikulu chiyenera kuperekedwa ku ma CD ndi kusungirako zipangizo. Nthawi zambiri posunga zida za HDPE, zimafunika kukhala kutali ndi zozimitsa moto, zotsekereza, ndipo nyumba yosungiramo katundu iyenera kukhala yowuma komanso yaudongo. Nkoletsedwa kotheratu kusakaniza zonyansa zilizonse, ndipo n’zoletsedwa kotheratu kukumana ndi dzuŵa ndi mvula. Kuonjezera apo, poyendetsa, ziyenera kusungidwa m'ngolo yoyera, youma ndi yophimba kapena kanyumba, ndipo palibe zinthu zakuthwa monga misomali zomwe ziyenera kuloledwa.
Nthawi yotumiza: Jul-04-2025
