Ndeupi musiyano uripo pakati pemabhegi ezvekudya nemabhegi epurasitiki akajairwa?

1. Polyethylene: Chikamu chikuru chinonzi polyethylene resin, uye zvishoma zvemafuta, kukwegura uye zvimwe zvinowedzera zvinowedzerwa.Polyethylene hainhuwi, isina chepfu, ine mukaka chena waxy yakasimba.HDPE yakakamurwa kuita yakakwira-density polyethylene, yakaderera-density polyethylene uye mutsara yakaderera-density polyethylene zvinoenderana ne morphology, zvirimo uye cheni chimiro chepolymer.
Polyethylene plastiki inowanzonzi yepasi pressure HDPE.Kuenzaniswa neyakaderera-density polyethylene uye LLDPE, polyethylene mapurasitiki ane yakanyanya kupisa kupisa, abrasion resistance, mvura vapor hydrophilicity uye stress crack resistance munzvimbo dzakasikwa.Uye zvakare, polyethylene plastiki ine yakanakisa dielectric simba, kukanganisa kupikisa uye kutonhora kupikisa.Inokodzera zvigadzirwa zvisina makomba (senge mabhodhoro egirazi, mabhodhoro edetergent), jekiseni kuumba, jekiseni kuumba uye mamwe maindasitiri.
Linear low-density polyethylene (LINEARLOWDENSYPOYETHYLENE, LLDPE) ipolymer inogadzirwa nepolymerization ye ethylene uye shoma shoma yemaolefin epamberi pamberi pekatani.Chitarisiko chayo chakafanana nechepasi-density polyethylene, asi pamusoro payo gloss yakanaka, ine yakaderera tembiricha elongation uye yakakwirira Modulus, kukotama kuramba, kuramba pasi stress kutsemuka, kuderera tembiricha kukanganisa compressive simba uye zvimwe zvakanakira.
Inonyanya kushandiswa kuumba jekiseni, extrusion, blow molding uye dzimwe nzira dzekuumba kugadzira mafirimu, zvinodikanwa zvezuva nezuva, mapaipi, waya uye tambo.
2. Polypropylene: Chikamu chikuru chinonzi polypropylene resin, ine high gloss uye chiedza transmittance.Kupisa kwekuisa chisimbiso kuita kwakaipa kupfuura PE, asi kuri nani pane zvimwe zvinhu zvepurasitiki.
1. Barrier performance iri nani pane PE, simba rayo, kuoma uye kusimba zviri nani pane PE;
2. Utano nekuchengeteka zvakakwirira kudarika mitambo
3. Iine hutano hwakanaka hwekupisa uye inogona kushandiswa kwenguva yakareba pakupisa kwe100 degrees Celsius, asi kutonhora kwayo kunovandudza kushanda kweHDPE uye inova brittle pa -17 degrees Celsius.
Bhegi rekurongedzerwa rakagadzirwa nefirimu repurasitiki rakakunda platinamu, zvinhu zvakasvibirira zvinopenya uye zvinhu zvisingabvi kubvarura maererano nekupfeka kuramba uye kusamira kwehunyoro, asi dhizaini yekurongedza haina kunaka uye mutengo wakaderera.Inogona kushandiswa kudzoreredza kurongedza kwe lollipops uye snacks.Inogona kugadzirwa kuita kupisa kwechikafu shrinkable firimu kurongedza bhegi kupisa shrinkable firimu, senge chikafu uye chikafu mapurasitiki ekurongedza mabhegi uye mamwe mabhegi ekurongedza.
3. Polystyrene: A polymer ine styrene monomer sechikamu chikuru.Nyaya iyi iri pachena uye inopenya.
1. Kuramba kwehunyoro kwakaipa kudarika PE, kugadzikana kwemakemikari kunowanzo, kuoma kwakakwirira, asi brittleness yakakura.
2. Good yakaderera tembiricha kuramba, asi urombo yakakwirira tembiricha kuramba, haigoni kudarika 60≤80℃.
3. Zvakanaka kuchengetedza chinhu.