Firimu repurasitiki sechishandiso chekudhinda, rinodhindwa sebhegi rekurongedza, rine chiedza uye rakajeka, rinodzivirira hunyoro uye okisijeni, kusimba kwemhepo, kusimba uye kupeta, nzvimbo yakatsetseka, rinogona kuchengetedza chigadzirwa, uye rinogona kubereka chimiro chechigadzirwa, ruvara nezvimwe zvakanakira. Nekuvandudzwa kweindasitiri yepetrochemical, mhando dzakawanda dzefirimu repurasitiki, purasitiki firimu repolyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polyester firimu (PET), polypropylene (PP), nylon (PA) nezvimwewo. Pamusoro pezvo, kune mamwe marudzi mazhinji efirimu repurasitiki, nyanzvi yekugadzira mapurasitiki inochinjika Shunfa packing inofunga kuti zvakakosha kunzwisisa hunhu hwefirimu repurasitiki usati waisa mabhegi ekurongedza akagadzirwa. Yakarongedza hunhu hwemhando gumi neimwe dzefirimu repurasitiki pasi pebhegi rekurongedza kuti utarise.
1. Polyvinyl chloride (PVC)
Zvakanakira zvePVC film nePET zvakafanana, uye zvakafanana ndezvehunhu hwekujeka, kufema, acid uye alkali resistance. Mabhegi mazhinji echikafu ekutanga anogadzirwa nemabhegi ePVC. Zvisinei, PVC inogona kuburitsa carcinogens nekuda kwekusakwana kwepolymerization yemamwe mamonomers mukugadzirwa, saka haina kukodzera kuzadza zvinhu zvemhando yepamusoro, uye akawanda akachinja kuita mabhegi ePET packaging, zvichiratidza kuti chiratidzo chezvinhu zvacho inhamba 3.
2. Polystyrene (PS)
Kunyudzwa kwemvura kwePS film kwakaderera, asi kugadzikana kwayo kuri nani, uye inogona kugadziriswa nekushandisa pfuti yekupfura, kudzvanya pfuti, extrusion uye thermoforming. Kazhinji, yakakamurwa kuita mapoka maviri ekufumisa uye kuburitsa furo zvichienderana nekuti yapinda here mukuita kwefuro. Unfoamed PS inonyanya kushandiswa muzvinhu zvekuvaka, matoyi, magwaro ekushandisa, nezvimwewo, uye inogonawo kugadzirwa mumidziyo yakazadzwa nezvigadzirwa zvemukaka zvakaviriswa, nezvimwewo. Mumakore achangopfuura, yakashandiswawo zvakanyanya mukugadzira tafura dzinoraswa, uye chiratidzo chezvinhu zvacho inhamba 6.
3. Polypropylene (PP)
Firimu rePP rinoshandisa blow molding, nzira iri nyore uye inodhura zvishoma, asi mashandiro ekuona akaderera zvishoma pane CPP neBOPP. Chinhu chikuru chePP inodzivirira kupisa kwakanyanya (inenge -20 ° C ~120 ° C), uye nzvimbo yekunyunguduka inosvika 167 ° C, iyo yakakodzera kuzadza mukaka wesoya, mukaka wemupunga nezvimwe zvigadzirwa zvinoda hutachiona hwemhepo. Kuoma kwayo kwakakwira kupfuura PE, iyo inoshandiswa kugadzira zvivharo zvemidziyo, uye chiratidzo chezvinhu zvacho inhamba 5. Kazhinji, PP ine kuoma kwakanyanya, uye pamusoro payo pane kupenya kwakanyanya, uye haiburitse hwema hunopisa kana ichitsva, nepo PE ine hwema hwekenduru hwakanyanya.
4. Firimu rePolyester (PET)
Firimu rePolyester (PET) ipurasitiki yeinjiniya yethermoplastic. Firimu rakatetepa rakagadzirwa nejira gobvu nenzira yekubvisa uye kutambanudza mativi maviri. Firimu rePolyester rinoratidzwa nehunhu hwakanaka hwemakanika, kuomarara kwakanyanya, kuomarara uye kusimba, kuramba kuboorwa, kuramba kukweshana, kuramba kupisa kwakanyanya uye kwakaderera, kuramba makemikari, kuramba mafuta, kusimba kwemhepo uye kuchengetedza kwakanaka kwekunhuhwirira, ndeimwe yezvikamu zvemafirimu anoshandiswa zvakanyanya kudzivirira kupenya, asi kuramba korona kwakaderera, mutengo wakakwira. Ukobvu hwefirimu hunowanzo 0.12mm, iyo inowanzo shandiswa sechinhu chekunze chebhegi rekurongedza chikafu, uye kugona kudhindwa kwakanaka. Maka chiratidzo chechinhu 1 muchigadzirwa chepurasitiki.
5. Naironi (PA)
Firimu repurasitiki reNylon (polyamide PA) parizvino riri kugadzirwa nemaindasitiri emhando dzakasiyana-siyana, idzo mhando huru dzinoshandiswa kugadzira firimu ndiNylon 6, Nylon 12, Nylon 66 nezvimwewo. Firimu reNylon ifirimu rakaoma kwazvo, rinoonekera zvakanaka, uye rine kupenya kwakanaka. Simba rekudhonza, simba rekudhonza, simba rekudhonza, kupisa kwakanyanya uye kwakaderera, kuramba mafuta, kuramba organic solvent, kuramba kupfeka uye kuramba kubhoorwa zvakanaka kwazvo, uye firimu racho rakapfava, kuramba oxygen kwakanaka, asi chinodzivirira mvura ine utsi chakashata, kunyudzwa kwemvura, kupindira kwehunyoro kwakakura, uye kuvhara kupisa kwakashata. Yakakodzera kurongedza zvinhu zvakaoma, zvakaita sechikafu chine mafuta, chikafu chakakangwa, chikafu chekurongedza chevacuum, chikafu chekubika, nezvimwewo.
6. Polyethylene Yakanyanya Kuwanda (HDPE)
Firimu reHDPE rinonzi geomembrane kana kuti firimu risingapindi mvura. Nzvimbo yaro yekunyunguduka inenge 110℃-130℃, uye huwandu hwaro hwakafanana ne0.918-0.965kg/cm3. Iine crystallinity yakakura, non-polar thermoplastic resin, chitarisiko chepakutanga cheHDPE chakaita sechichena chemukaka, muchikamu chidiki chine chiedza chakati. Rinodzivirira zvakanaka tembiricha yepamusoro neyakaderera uye rinodzivirira kukanganiswa, kunyangwe pa -40F tembiricha yakaderera. Kugadzikana kwayo kwemakemikari, kuomarara, kusimba kwemuchina, simba rekubvaruka zvakanaka, uye nekuwedzera kwehuwandu, hunhu hwemuchina, hunhu hwezvipingamupinyi, simba rekudhonza uye kuramba kupisa zvichavandudzika zvinoenderana, zvinogona kudzivirira acid, alkali, organic solvents nezvimwe ngura. Kuzivikanwa: kazhinji kacho hakuoneki, kunonzwa sekunge wakisi, kukwesha bhegi repurasitiki kana kukwesha kana richikwesha.
7. Polyethylene Yakaderera (LDPE)
Kuwanda kwefirimu reLDPE kwakaderera, kwakapfava, kunodzivirira kupisa kwakaderera, kugadzikana kwemakemikari kwakanaka, kana zvakajairika, asidhi (kunze kweasidhi yakasimba ye oxidizing), alkali, ngura yemunyu, ine insulation yakanaka yemagetsi. LDPE inonyanya kushandiswa mumabhegi epurasitiki, chiratidzo chechinhu ichi inhamba 4, uye zvigadzirwa zvayo zvinonyanya kushandiswa muinjiniya yezvemagariro uye minda yekurima, senge geomemofilm, firimu rekurima (firimu reshed, firimu remulch, firimu rekuchengetera, nezvimwewo). Kuzivikanwa: Bhegi repurasitiki rakagadzirwa neLDPE rakapfava, harinyanyi kupetwa kana richikandwa, firimu repurasitiki rekurongedza rekunze rakapfava uye riri nyore kubvarura LDPE, uye firimu rePVC kana PP rinonyanya kuputsika uye kuoma.
8. Doro rePolyvinyl (PVA)
Firimu rePolyvinyl alcohol (PVA) rine bhatiri rakawanda rinoumbwa nekuputira mvura inonyungudika yepolyvinyl alcohol yakagadziriswa papurasitiki yepolyethylene. Nekuti firimu repolyvinyl alcohol rine bhatiri rakawanda rine bhatiri rakanaka uye rinozadzisa zvinodiwa zvekuchengetedzwa kwezvakatipoteredza, mukana wekutengesa zvinhu izvi wakajeka kwazvo, uye kune nzvimbo yakakura yemusika muindasitiri yechikafu.
9. Firimu rePolypropylene (CPP)
Firimu reCasting polypropylene (CPP) imhando yefirimu rekunze risina kutatamuka, risingataridzike, rinogadzirwa nekutonhodza kwemvura inonyunguduka. Rinoonekwa nekukasira kugadzirwa, goho guru, kujeka kwefirimu, kupenya, hunhu hwechivharo, kupfava, ukobvu hwakafanana, rinogona kumira kupisa kwakanyanya (kupisa kwekubika kuri pamusoro pe120 ° C) uye kupisa kwakaderera (kupisa kwekupisa kuri pasi pe125 ° C), chiyero chekushanda chakanakisa. Basa rekutevera rakadai sekudhinda, composite iri nyore, rinoshandiswa zvakanyanya mumachira, chikafu, kurongedza zvinodiwa zvezuva nezuva, kuita substrate yemukati yekurongedza kwakabatana, kunogona kuwedzera hupenyu hwesherufu yechikafu, kuwedzera runako.
10. Firimu repolypropylene rinotenderera kaviri (BOPP)
Firimu reBiaxial polypropylene (BOPP) ibhegi rekurongedza rinoonekera uye rinochinjika rakagadzirwa muma1960, iro riri mutsetse wekugadzira wakakosha wekusanganisa zvinhu zvepolypropylene uye zvinowedzera zvinoshanda, kunyungudutsa nekusanganisa, kugadzira mapepa, uye wobva wagadzira firimu nekutambanudza. Firimu iri harina chete zvakanakira zvekuva nekushomeka kwakaderera, kuramba ngura uye kuramba kupisa kwakanaka kwePP resin yekutanga, asiwo rine hunhu hwakanaka hwemaziso, simba remakanika, manyuko akapfuma ezvinhu zvakachekwa, hunhu hwakanaka hwekudhinda, uye rinogona kusanganiswa nepepa, PET nezvimwe zvinhu. Rine hunhu hwepamusoro uye kupenya, kunyudzwa kweinki kwakanaka uye kunamira kwekuvhara, simba rakawanda rekusunga, hunhu hwakanaka hwekudzivirira mafuta, hunhu hwakaderera hwemagetsi.
11. Firimu rakaumbwa nesimbi
Firimu rakaumbwa nesimbi rine hunhu hwepurasitiki nesimbi. Basa rekuputira aruminiyamu pamusoro pefirimu nderekudzivirira chiedza nekudzivirira mwaranzi ye ultraviolet, iyo inowedzera hupenyu hwezviri mukati uye inovandudza kupenya kwefirimu, ichitsiva foil yearuminiyamu kusvika pamwero wakati, uye ine hunhu hwakachipa, hwakanaka uye hwakanaka hwekudzivirira. Nokudaro, firimu rakaumbwa nesimbi rinoshandiswa zvakanyanya mukuputira kwakabatana, rinonyanya kushandiswa mumabhisikiti uye mamwe mapurasitiki echikafu akaoma, akaputirwa, mishonga uye mapurasitiki ekuzora.
Nguva yekutumira: Chikunguru-19-2023