Kuenzaniswa nePET uye PP zvinhu, PP ichave yakanyanya kukwirira mukuita.
1. Musiyano kubva kutsanangudzo
PET(Polyethylene terephthalate) zita resainzi ndiro polyethylene terephthalate, inowanzozivikanwa sepolyester resin, iresin zvinhu.
PP(polypropylene) zita resainzi ndipolypropylene, inova polima inoumbwa nekuwedzera polymerization yepropylene, uye iri thermoplastic synthetic resin.
2.Kubva kuhunhu hwekusiyana
(1) PET
①PET ichena yemukaka kana yero yakatsvuka yakanyanya crystalline polymer ine nzvimbo yakatsetseka uye inopenya.
②PET zvinhu zvine kumira zvakanaka kwekuneta, kuramba kweabrasion uye kugadzikana kwedimensional, kupfeka kwakaderera uye kuoma kwakanyanya, kubhenda simba re200MPa, uye elastic modulus ye4000MPa.
③Iyo PET zvinhu ine yakanakisa yakakwira uye yakaderera tembiricha yekudzivirira kuita, iyo inogona kushandiswa kwenguva yakareba mutembiricha ye120 ° C, uye inogona kumira tembiricha yepamusoro ye150 ° C yekushandiswa kwenguva pfupi uye yakaderera tembiricha ye -70 ° C. C.
④ Ethylene glycol inoshandiswa mukugadzirwa kwePET ine mutengo wakaderera uye yakakwira mutengo kuita.
⑤Iyo PET zvinhu haisi-chepfu, ine kugadzikana kwakanaka kunopesana nemakemikari, uye inopesana neasina simba acids uye organic solvents, asi haigoni kunyudzwa mumvura inopisa uye alkali.
(2) PP
①PP ichena waxy zvinhu zvine kujeka uye kujeka kutaridzika.Ndiyo mhando yakareruka yeanowanzo shandiswa resin.
②PP zvinhu zvine yakanakisa mechini zvivakwa uye yakanaka kupisa kupisa, uye kuenderera kwekushandisa tembiricha inogona kusvika 110-120 °C.
③PP zvinhu zvine kugadzikana kwakanaka kwemakemikari uye hazvidyidzane nemakemikari mazhinji kunze kweakasimba oxidants.
④PP zvinhu zvine tembiricha yekunyungudika uye simba rekusimba, uye kujeka kwefirimu kwakakwira.
⑤PP zvinhu zvine yakanakisa kuvharwa kwemagetsi, asi iri nyore kuchembera uye ine simba rakashata rekuita pakudziya kwakaderera.
3. Kusiyana mukushandiswa
PET inoshandiswa zvakanyanya, sekutenderera mu polyester fiber, kureva, polyester;sepurasitiki, inogona kuputirwa mumabhodhoro akasiyana-siyana;sezvikamu zvemagetsi, mabheya, magiya, nezvimwe.
PP zvinhu zvinoshandiswa zvakanyanya mukugadzira jekisenizvigadzirwa zvekuumba, mafirimu, mapaipi, mahwendefa, fibers, coatings, nezvimwewo, pamwe chete nemidziyo yemumba, steam, makemikari, kuvaka, indasitiri yemwenje nemimwe minda.
Nguva yekutumira: Sep-13-2022