pulasitiki ya thovu
Pulasitiki yokhala ndi thovu ndi mtundu wa pulasitiki womwe umapezeka mwakuthupi kapena mwamankhwala popanga kachipangizo kakang'ono mkati mwa pulasitiki.Pulasitiki yamtunduwu ili ndi ubwino wolemera pang'ono, kutsekemera kwa kutentha, kusungirako, kutsekemera, kutsutsa-kutu komanso mtengo wotsika.Pafupifupi mapulasitiki onse a thermosetting ndi thermoplastic amatha kupangidwa kukhala mapulasitiki a thovu.Mapulasitiki opangidwa ndi thovu ambiri ndi polystyrene, polyurethane, ndi polyolefin.
Kuyerekeza kwa mapulasitiki akuluakulu atatu a thovu
Chiyambi cha Foamed Polypropylene
Foamed polypropylene ndi pulasitiki wopanda thovu wokonzedwa kuchokera ku polypropylene ngati utomoni woyambira.Poyerekeza ndi mapulasitiki okhala ndi thovu omwe amagwiritsidwa ntchito kwambiri, polypropylene yokhala ndi thovu ili ndi zabwino zambiri.
Foamed polypropylene yaiwisi
Popeza mphamvu yotsika yosungunuka ya polypropylene wamba sikungatsimikizire kupsinjika kwa makoma a cell pamene thovu likukula, polypropylene yotulutsa thovu iyenera kugwiritsa ntchito high melt strength polypropylene (HMSPP).
Njira zowonjezerera mphamvu zosungunuka za polypropylene zimaphatikizapo kuphatikiza kwakuthupi ndikusintha kwamankhwala.
Pakalipano, opanga zida zamphamvu zosungunuka kwambiri za polypropylene zikuphatikizapo Basell, Borealis, Dow Chemical, Samsung, Exxon Mobil, ndi zina zotero. Opanga ndi teknoloji ya polypropylene foaming ikuphatikizapo JSP, Kaneka ndi BASF, Berstorff Company.Mabungwe ambiri ofufuza zapakhomo achita kafukufuku wambiri paukadaulo wotulutsa thovu, ndipo opanga ena azindikira kupanga mafakitale, monga Zhenhai Refinery, Yanshan Petrochemical Resin Research Institute, Wuhan Futiya, komabe pali kusiyana kwakukulu pakati pa khalidwe lazogulitsa ndi mayiko akunja. ..
Njira yopanga thovu polypropylene
Pali njira zazikulu zitatu zokonzekera: kusungunuka kwamphamvu kwa polypropylene thovu, kutulutsa thovu kolumikizana ndi polypropylene, ndi kusakanikirana kwa thovu.
Chinsinsi cha kukonzekera foamed polypropylene
Zinthu zopangidwa ndi thovu la polypropylene zimakhala ndi magwiridwe antchito abwino komanso chiyembekezo chogwiritsa ntchito, koma chitukuko chaukadaulo ndizovuta.Ukadaulo kiyi wa polypropylene thobvu ndondomeko ndi kulamulira thobvu bata ndi thobvu chiŵerengero cha polypropylene ndi kusintha kutentha ndondomeko.
Ntchito minda ya thovu polypropylene
1. Kuyika chakudya
Foamed polypropylene imakhala ndi kuwonongeka kwabwino komanso kukana kwamafuta abwino, zomwe zimapangitsa kuti zikhale ndi zabwino zodziwikiratu kuposa chakudya chowonjezera cha polystyrene pamsika wotayika.
2. Kutentha kwa kutentha
Zinthu zopangidwa ndi thovu la polypropylene ndi mtundu watsopano wazinthu zotenthetsera zotenthetsera zokhala ndi kutentha kwambiri.Nthawi zambiri imatha kupirira kutentha kwa -40 mpaka 110 ° C, ndipo imatha kupirira kutentha kwambiri kwa 130 ° C m'kanthawi kochepa.
3. Makampani opanga magalimoto
M'zaka zaposachedwa, kugwiritsidwa ntchito kwa zinthu zopangidwa ndi thovu la polypropylene pamsika wamagalimoto kwakula, zomwe zingachepetse kwambiri kulemera kwagalimoto ndikupulumutsa mafuta.
4. Munda womanga
Zida zoteteza madzi, zomangira pansi, zida zakunja zotchinjiriza khoma
5. Electronic Packaging
6. Kuyika kwa bafa
7. Katundu Wamasewera
8. Zoseweretsa
Waukulu opanga thovu polypropylene
Zopangira thovu za polypropylene zimakhala ndi magwiridwe antchito abwino komanso chiyembekezo chogwiritsa ntchito, koma chitukuko chaukadaulo ndizovuta kwambiri.Pakadali pano, ku China kulibe mankhwala okhudzana ndi mafakitale.Ukadaulo wapakatikati uli m'manja mwa JSP ndi KANEKA.
Nthawi yotumiza: Jun-09-2022