Yintoni i-PE? Unolwazi olungakanani ngephepha eligqunywe yi-PE?

Wonke umntu kufuneka aqhelane nephepha. Kuba sinokubona zonke iintlobo zeemveliso zephepha kwiindawo ezininzi kubomi bemihla ngemihla. Umzekelo, siqhelene neekomityi zephepha, izitya zephepha, iipleyiti zephepha kunye neebhokisi zokutya okukhawulezayo. Sonke siyazi ukuba iphepha li-hygroscopic (lifunxa umswakama ngokulula) kwaye linamandla amancinci okuqhuma. Kodwa ukuba ulumkile, uya kufumanisa ukuba la maphepha anefilimu ecacileyo, ekhazimlayo, egudileyo ngaphakathi. Leyo yifilimu ye-PE, ebonakala ngathi ibeka ijazi lomlingo ephepheni, elinika amandla amakhulu okungoyiki amanzi neoyile. Masityhile imfihlakalo yephepha eligqunywe kunye!

Isiqulatho

1. Yintoni i-PE?
2. Uhlu lwe-PE.
3. Ukusasazwa kwamandla emveliso ye-PE ngokwelizwe.
4. Yintoni iphepha eligqunywe nge-PE? Lisetyenziselwa ntoni?
5, Uhlu lwephepha eligqunywe nge-PE.
6. Ukusetyenziswa kwephepha eligqunywe nge-PE.

Yintoni i-PE?

Ngaphambi kokuba siqonde iphepha eligqunywe nge-PE, masithethe ngezinto zalo eziphambili - i-polyethylene. I-Polyethylene lifutshane ne-PE, eliyi-thermoplastic resin eyenziwe nge-polymer evela kwi-ethylene. Imbonakalo ye-polyethylene ngamasuntswana amhlophe anjenge-wax, angenancasa, angenavumba, angenatyhefu kwaye avakala ngathi yi-wax. Uphawu oluphambili lwe-polyethylene luxabiso eliphantsi, olunokumelana nokubanda okugqwesileyo, uzinzo lweekhemikhali, ubushushu bombane kunye nezinye iimpawu. Ngoko ke inoluhlu olubanzi kakhulu lwezicelo. Isetyenziswa kakhulu ekwenziweni kweefilimu, izinto zokupakisha, izikhongozeli, iipayipi, iingcingo kunye neentambo, izinto ezifunekayo zemihla ngemihla, njl. Ngaphezu koko, ingasetyenziswa njengezinto zokukhusela ezisetyenziswa rhoqo kwiithelevishini, ii-radar, njl. Ukusukela oko yasetyenziswa ngo-1922, i-polyethylene iye yaba yi-resin enkulu yokwenziwa emhlabeni kwaye isetyenziswa kakhulu kwizinto zokupakisha zeplastiki. Ithatha indawo ebalulekileyo kushishino lweplastiki.

Ulwahlulo lwe-PE
Ngenxa yeenkqubo ezahlukeneyo ze-polymerization ye-polyethylene, ulwakhiwo lwayo nalo lwahlukile, kwaye iimpawu zemveliso ezihambelanayo nazo zahlukile kakhulu. Ngokuyintloko zingahlulwa zibe: i-Low-Density Polyethylene (LDPE), i-Linear Low Density Polyethylene (LLDPE), i-High-Density Polyethylene (HDPE).
I-LDPE: Isetyenziswa kakhulu kwiphepha elenziweyo, ifilimu yezolimo, ifilimu yokupakisha kwimizi-mveliso, ucingo, njl.njl.;
I-LLDPE: Isetyenziswa kakhulu kwiingcingo kunye neentambo, iipayipi, izinto ezifunekayo zemihla ngemihla, njl.njl.;
I-HDPE: Isetyenziswa kakhulu kwiiligatures, iintambo, iminatha yokuloba, njl.njl.

 

Ukusasazwa kwamandla emveliso ye-PE ngokwelizwe
Ukusukela ngo-Epreli 2022, amandla okuvelisa i-PE eTshayina afikelele kwiitoni ezingama-29.18 ezigidi, nto leyo ethetha i-21% yamandla okuvelisa i-PE kwihlabathi liphela. Kuyabonakala kwidatha ukuba amandla okuvelisa i-PE kwihlabathi liphela agxile kakhulu eTshayina, eMelika naseSaudi Arabia. ITshayina ngoku lilizwe elinamandla okuvelisa i-polyethylene amaninzi kwihlabathi liphela.

 

 

Yintoni iphepha eligqunywe nge-PE?

Sele sinolwazi olunzulu nge-PE apha ngasentla, ngoko ke yintoni iphepha eligqunywe yi-PE? Ngamafutshane, iphepha eligqunywe yi-PE liyinto edityanisiweyo eyenziwe ngephepha njengezinto ezisisiseko kwaye igqunywe ngomaleko wefilimu ye-polyethylene kwiphepha elisisiseko, oko kukuthi, amasuntswana eplastiki agqunywe phezu kwephepha ngomatshini wokuphosa. Iphepha kulula ukulimanzisa, kodwa emva kokuba lidityaniswe ngokugqibeleleyo ne-polyethylene, iphepha eligqunywe linokufezekisa imiphumo yokumelana nokungangeni manzi, ukumelana neoyile kunye nobushushu obuphezulu.

Uhlu lwephepha eligqunywe nge-PE

Ngokomahluko phakathi kwenani lefilimu egqunyiweyo, ingahlulwa ibe liphepha eligqunyiweyo le-PE elinamacala amabini, iphepha eligqunyiweyo le-PE elinamacala amabini, kunye nephepha eligqunyiweyo le-PE eliphakathi.

1. Iphepha elifakwe i-PE elicala elinye
Iphepha elinomfanekiso we-PE elinomgca omnye ligqunywe ngefilimu ye-PE kwelinye icala lephepha elisisiseko. Lisetyenziswa kwiikomityi zephepha lokusela ezishushu, iphepha le-hamburger, njl.njl.
2. Iphepha elifakwe i-PE elinamacala amabini
Iphepha eligqunywe nge-PE elinamacala amabini ligqunywe nge-PE kumacala omabini ephepha elisisiseko. Lisetyenziswa kwiikomityi zephepha lokusela ezibandayo.
Iphepha eligqunywe phakathi kweeleya

Iphepha eligqunywe ngesandwich lenzelwe ukubeka i-PE coating phakathi kwamaphepha amabini esiseko ukuze kudityaniswe iphepha elinye ukuphucula ukuguquguquka kwephepha.
Isetyenziswa kakhulu: kwiipakethe ze-desiccant, kwiingxowa zokupakisha ukutya, njl.
Ngokweengubo ezahlukeneyo, inokwahlulwa ibe ziintlobo ezimbini: ifilimu eqaqambileyo kunye nefilimu engaphantsi.
Ifilimu eqaqambileyo yifilimu ye-polyethylene ecacileyo enamacala amabini enomphezulu okhanyayo kunye nesandla esigudileyo. Ifilimu eqaqambileyo yifilimu ye-polyethylene engabonakaliyo enefilimu engabonakaliyo enomphezulu onkungu.
Iisequins zinemibala ecacileyo kwaye izinto eziprintiweyo zinemibala engakumbi. Iifilimu ezithambileyo zinombala othe tyaba.
Ukusetyenziswa kwephepha eligqunyiweyo
Iphepha eligqunyiweyo linxulumene kakhulu nobomi bethu bemihla ngemihla kwaye linoluhlu olubanzi lokusetyenziswa, olusetyenziswa kakhulu ekupakisheni, ekutyeni, kwezonyango, kwi-elektroniki, kwi-hardware, ekusikeni iidayi, njl.njl.

Ububanzi besicelo sephepha eligqunyiweyo:

Ububanzi bokusetyenziswa kwephepha eligqunyiweyo
1. Iikhemikhali: ukupakishwa kwe-desiccant, ii-mothballs, i-washing powder, izithinteli.
2. Ukutya: iipakethe zeenoodles, ukupakishwa kwe-ayisikhrim, ubisi.