Iplastiki yePolyethylene (PE)

* I-PE yiplastiki ye-polyethylene, enokwenziwa ibe yifilimu yeplastiki, iingxowa zeplastiki kunye neendawo ezahlukeneyo. Ukuze kuncitshiswe ungcoliseko olumhlophe, izinto ezibangela ukubola zingongezwa kwiplastiki ukuze kufezekiswe injongo yokubola ngokukhawuleza, olu hlobo lwe-polyethylene lubizwa ngokuba yiplastiki enobuhlobo nokusingqongileyo. Ilula, ihlala ixesha elide, kwaye yenye yeplastiki eveliswa kakhulu.

* Iimveliso zeplastiki ze-PE ezenziwe ngokwezifiso okanye iinxalenye

KOMELELEYO

AYINAMPAMVU

Iimpawu zombane ezintle kakhulu

Yintoni i-PE Plastiki?

I-Polyethylene ebizwa ngokuba yi-PE, yi-resin ye-thermoplastic eveliswa yi-polymerization ye-ethylene, lulwakhiwo lweekhompawundi ze-polymer ezilula ze-organic, izixhobo ze-polymer ze-polyethylene ze-PE ezisetyenziswa kakhulu kwihlabathi liphela, i-polymerization ye-ethylene, ngokweengxinano ezahlukeneyo zahlulwe zibe yi-polyethylene enoxinano oluphezulu, i-polyethylene enoxinano oluphakathi kunye ne-polyethylene enoxinano oluphantsi.

I-Polyethylene ayinavumba, ayinatyhefu, ivakala ngathi yiwax, inokumelana kakuhle nobushushu obuphantsi (ubushushu obuphantsi bokusetyenziswa ukuya kuthi ga kwi -100 ~ -70 ° C), izinzile kakuhle kwiikhemikhali, inokumelana nee-asidi ezininzi kunye ne-alkalis (ayixhathisi kwiimpawu ze-oxidizing ze-asidi). Ayinyibiliki kwizinyibilikisi ngokubanzi kubushushu begumbi, ayifunxwa ngamanzi amaninzi, kwaye ayinyibiliki kakuhle kwii-insulation zombane.

Yenziwa njani i-PE?

I-Polyethylene yenziwe nge-polymerization ye-ethylene (okanye i-ethene) monomer. Ii-PE chains ziveliswa ngokudibanisa okanye nge-radical polymerization. Iindlela ezinokwenzeka zokwenziwa zezi:

I-Ziegler-Natta Polymerization kunye

I-catalysis ye-Metallocene

Ngaba ii-resin ze-PE ziyingozi?

Xa ikwimo eqinileyo, iPolyethylene ithathwa njengekhuselekileyo kwaye ayinabungozi. Inokuba yityhefu ukuba iphefumlwe kwaye/okanye ifunxwe njengomphunga okanye ulwelo (oko kukuthi, ngexesha leenkqubo zokwenziwa).

Ziziphi iintlobo eziqhelekileyo ze-PE?

Ngokuxhomekeke kuxinano lwayo kunye nobubanzi bayo, amanqanaba e-PE ahlukeneyo anokuba nokusebenza okwahlukileyo kakhulu komnye nomnye.

Ngoko ke amanqanaba e-PE ahlulwe ngolu hlobo lulandelayo.

Iinguqulelo ezihlanganisiweyo

I-polyethylene enoxinano oluphantsi (LDPE)

I-polyethylene exineneyo ethe tyaba (LLDPE)

Iinguqulelo eziLula

I-polyethylene enoxinano oluphezulu (i-HDPE)

I-polyethylene enobunzima obuphezulu kakhulu (UHMWPE)

I-polyethylene edityanisiweyo (i-PEX okanye i-XLPE)

Ukongeza, ezinye iintlobo ze-PE ziyafumaneka ezifana nezi:

I-polyethylene enoxinano oluphakathi (i-MDPE)

I-polyethylene exinene kakhulu (i-ULDPE)

I-polyethylene enobunzima obuphezulu (HMWPE)

I-polyethylene yeMetallocene (mPE)

I-polyethylene ekhlorini (CPE)

Qalisa ngesicatshulwa sasimahla esikhawulezileyo!

Zonke izinto ezilayishiweyo zikhuselekile kwaye ziyimfihlo

ISIFUMANI SEMVELISO IZIKHOKELO ZOBUNJINELI

Ungayithelekisa njani phakathi kweentlobo eziphambili ze-PE?

	I-LDPE	I-LLDPE	I-HDPE
Igama elipheleleyo lePolymer	I-Polyethylene enoxinano oluphantsi	I-Polyethylene enoxinano oluphantsi oluLinear	I-Polyethylene enoxinano oluphezulu
Ulwakhiwo	Inqanaba eliphezulu lekhonkco elifutshane ukuhlanganisa amasebe + ukuhlanganisa amasebe ngomtya omde	Inqanaba eliphezulu lokuhlanganiswa kweekhonkco ezimfutshane	Umgca othe tyaba (okanye inqanaba eliphantsi lokuhlanganiswa kweetyathanga ezimfutshane)
I-Catalyst kunye nenkqubo	Ukusebenzisa i-radical polymerization usebenzisa indlela yetyhubhu okanye indlela ye-autoclave	Ukusebenzisa i-Ziegler-Natta catalyst okanye i-metallocene catalyst	I-catalyst yeZiegler-Natta kwi: - Ukwenziwa kwepolymeri kwinqanaba elinye - I-polymerization yezigaba ezininzi okanye i-catalyst yohlobo lwe-Cr okanye lwe-Phillips
Uxinano	0.910-0.925 g/cm3	0.91-0.94 g/cm3	0.941-0.965 g/cm3
Ubukristali	Ikristali ephantsi kwaye iphezulu i-amorphous (ingaphantsi kwe-50-60% yekristale)	I-semi-crystalline, inqanaba eliphakathi kwama-35 ukuya kuma-60%	Ikristali ephezulu kwaye incinci (ikristali engaphezulu kwama-90%)
Ikhowudi yokurisayikilisha
Iimpawu	Ukuguquguquka nokungafihli nto Iimpawu ezilungileyo zokuthintela ukufuma Amandla aphezulu okuchaphazela kubushushu obuphantsi Ukumelana kakuhle nee-asidi, iziseko kunye neoyile yemifuno	Xa kuthelekiswa ne-LDPE, ine: amandla aphezulu okuxinana impembelelo ephezulu kunye nokumelana nokubhoboza	Ukumelana okugqwesileyo kweekhemikhali Amandla aphezulu okuxinana Iipropati ezintle kakhulu zokuthintela ukufuma Kunzima ukuyitshintsha kancinci
Izicelo eziBanzi	Ukusonga okuncitshisiweyo, iifilimu, iibhotile ezicudiswayo iingxowa zenkunkuma, ii-extrusion moldings, kunye nee-laminates	Iingxowa ezisebenza kakuhle, iifilimu zokuthambisa, iifilimu zokwahlula amatayara, ii-liner zemizi-mveliso, iifilimu ze-elastiki, iingxowa zomkhenkce, iingxowa zokongeza ukupakisha kunye neengxowa zenkunkuma	Ukusasazwa kobunzima be-molecular kuncinci kakhulu, kunezicelo kwii-injection moldings okanye kwii-flat yarns, kunye nohlobo lokugqibela Ukusasazwa kobunzima beemolekyuli kubanzi, kusetyenziswa ukwenza iimveliso zefilimu, iimveliso zeplastiki ezingenanto kunye nemibhobho

Zithini iimpawu zeHDPE?

1. I-Polyethylene yi-thermoplastic eqhelekileyo, ayinavumba, ayinancasa, kwaye ayinatyhefu.

2. Iqondo lokunyibilika kwe-polyethylene yi-100-130C - ukumelana kwayo nobushushu obuphantsi kugqwesileyo.

3. I-Polyethylene izinzile kakuhle kwiikhemikhali kwaye ayixhathisi kwi-asidi ye-nitric enyibilikisiweyo, i-asidi ye-sulfuric enyibilikisiweyo, i-asidi ye-hydrochloric, i-asidi ye-hydrofluoric, i-asidi ye-phosphoric, i-asidi ye-formic, i-asidi ye-acetic, i-ammonia, i-amines, i-hydrogen peroxide, i-asidi ye-sodium, i-asidi ye-potassium kunye nezinye izisombululo kubushushu begumbi.

4. I-Polyethylene kulula ukuyifota, iyanyibilika kubushushu, iyabola, kwaye yonakala lula xa isenziwa yimisebe ye-ultraviolet.

5. Ubushushu obuqhubekayo: -50 ° C ukuya ku +60 ° C, izinto eziqinileyo ezinokukwazi ubushushu obuluncedo

6. I-polymer ebiza kancinci enokulungiswa kakuhle

7. Ukufunxwa kwamanzi okuncinci kakhulu

Loluphi uhlobo lwe-PE olunokuphinde lusetyenziswe?

Ikhowudi yokuQikelela iResin kwiintlobo ezimbini eziphambili ze-PE zezi:

I-LDPE kunye ne-HDPE aziboli ngokwemvelo. Zinegalelo elikhulu kwimveliso yenkunkuma yeplastiki yehlabathi. Zombini ezi ntlobo ze-PE ziyaphinda zisetyenziswe. Zisetyenziselwa ukuvelisa iibhotile zezinto ezingezizo zokutya, iiplastiki zokusetyenziswa ngaphandle, iibhini ze-compost, njl.njl.

Iinkonzo Ezifumanekayo Kwiplastiki Ye-PE

Iimveliso ezigqityiweyo

Imveliso enye epheleleyo eyenziwe ngezinto ze-PE, ezifana nezinye izixhobo zokuhombisa, iitoti zenkunkuma, njl.

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