PP kana PE Inova Chikafu-giredhi
PP uye PE ese ari maviri-chikafu-giredhi zvinhu.
PP ine nzvimbo yakakwirira yekunyunguduka uye inogona kushandiswa kugadzira mabhodhoro emukaka wesoya, mabhodhoro ejusi, mabhokisi ezvokudya zvemicrowave, nezvimwewo. PE ine huwandu hwakawanda hwekushandiswa uye inowanzoshandiswa mukugadzirwa kwezvigadzirwa zvefiber zvakadai sezvipfeko nemagumbeze, midziyo yezvokurapa. , motokari, mabhasikoro, zvikamu, pombi dzekutakura, midziyo yemakemikari, pamwe chete nekudya uye kurongedzerwa kwezvinodhaka.
Chinhu chikuru chePE i polyethylene, inozivikanwa seyakanakisa zvinhu zvekusangana kwechikafu pasi rese. Haina chepfu, haina kunhuhwirira, uye ine waxy manyorerwo, inosangana nehutsanana hutsanana hwekurongedza chikafu.
Chinhu chikuru chePP ipolypropylene . Polypropylene ine density yakaderera pakati pemapurasitiki ese, inenge 0.90.
Kubva pamaonero ekudzivirira kupisa, polypropylene ine yakanyanya kupisa kupisa kupfuura polyethylene. Mumamiriro ezvinhu akajairika, tembiricha yekunyunguduka yepolypropylene inosvika 40% -50% yakakwirira kupfuura iyo polyethylene, ingangoita 160-170 ° C. Naizvozvo, zvigadzirwa zvakagadzirwa nePP zvinogona kuomeswa patembiricha iri pamusoro pe100 ° C uye zvinoramba zvisingachinji pa150 ° C pasina deformation pasina simba rekunze.
Chikafu-giredhi Plastic Tsanangudzo
Kune marudzi akasiyana-siyana epurasitiki yekurongedza kwekudya kwekubata, kusanganisira polyethylene (PE)polypropylene (PP), polyvinyl chloride (PVCpolystyrene (PS), polyester (PET), polycarbonate (PC), nezvimwewo.
Pakati pavo, PP uye PS inonyanya kushandiswa kuraswa epurasitiki cutlery. PP yakanyanya kugadzikana, nepo PS inogona kuunza kumwe kukuvadza kumuviri wemunhu nekuda kwekuvapo kwekutevera kunokuvadza monomers kana zvinhu zvinoputika.
Mhando dzakasiyana dzekurasa epurasitiki cutlery ane akasiyana mamiriro ekushandisa uye anoratidza mutsauko wakakura mukupisa uye kumanikidza kuramba. Tembiricha yekushandisa inoraswa epurasitiki cutlery kazhinji iri pasi pe100 ℃, uye tembiricha yepamusoro haifanire kudarika 150 ℃.
