Iphepha lekomityi ye-PE liyindlela entsha neyonga indalo endaweni yeekomityi zeplastiki zemveli. Lenziwe ngohlobo oluthile lwephepha eligqunywe ngomaleko obhityileyo we-polyethylene, okwenza lingangeni manzi kwaye lilungele ukusetyenziswa njengekomityi elahlwayo. Uphuhliso lwephepha lekomityi ye-PE lube luhambo olude nolunomdla olunemingeni emininzi kunye nempumelelo endleleni.
Imbali yephepha leekomityi ze-PE ingalandelwa emva kwiminyaka yoo-1900, xa iikomityi zephepha zaqala ukwaziswa njengendlela yokucoca nefanelekileyo endaweni yeekomityi ze-ceramic okanye zeglasi. Nangona kunjalo, ezi komityi zephepha zokuqala zazingenamandla kakhulu kwaye zazinokuvuza okanye zidilike xa zizaliswe zizinto ezishushu. Oku kwakhokelela ekuphuhlisweni kweekomityi zephepha ezigqunywe nge-wax ngeminyaka yoo-1930, ezazingamelani nolwelo nobushushu.
Kwiminyaka yoo-1950, i-polyethylene yaqala ukuveliswa njengezinto zokugquma iikomityi zephepha. Oku kwavumela ukuveliswa kweekomityi ezingangeni manzi, ezingatshiyo, kwaye ezinobuhlobo nokusingqongileyo kuneekomityi ezigqunywe ngewax. Nangona kunjalo, bekungeminyaka yoo-1980 apho ubuchwepheshe kunye neenkqubo zokuvelisa ezifunekayo ukuvelisa iphepha lekomityi ye-PE ngomlinganiselo omkhulu zaphuhliswa ngokupheleleyo.
Omnye wemingeni ephambili ekuphuhliseni iphepha lekomityi ye-PE yayikukufumana ulungelelwano olufanelekileyo phakathi kwamandla kunye nokuguquguquka. Iphepha kwakufuneka libe namandla ngokwaneleyo ukubamba ulwelo ngaphandle kokuvuza okanye ukudilika, kodwa likwafaneleke ukuba libunjwe libe yikomityi ngaphandle kokukrazuka. Omnye umceli mngeni yayikukufumana izinto ezifunekayo ukuvelisa iphepha lekomityi ye-PE ngobuninzi. Oku kwakufuna intsebenziswano yeefektri zephepha, abavelisi beplastiki, kunye nabavelisi beekomityi.
Nangona le mingeni inzima, imfuno yezinye iindlela ezinobuhlobo nokusingqongileyo nezizinzileyo endaweni yeekomityi zeplastiki zemveli iqhubekile nokukhula kwiminyaka yakutshanje. Iphepha lekomityi ye-PE ngoku lisetyenziswa kakhulu kwiivenkile zekofu, kwiivenkile zokutya ezikhawulezayo, nakwamanye amashishini enkonzo yokutya njengendlela enobuhlobo nokusingqongileyo. Ikwathandwa kakhulu ngabathengi abaxhalabileyo ngempembelelo yenkunkuma yeplastiki kwindalo esingqongileyo.
Ukuqukumbela, uphuhliso lwephepha leekomityi ze-PE lube luhambo olude nolunomdla oluye lwafuna iminyaka emininzi yophando nophuhliso. Nangona kunjalo, isiphumo sokugqibela yimveliso enobuhlobo nokusingqongileyo kunye nezoqoqosho. Njengoko imfuno yabathengi yeemveliso ezinobuhlobo nokusingqongileyo iqhubeka ikhula, kusenokwenzeka ukuba siza kubona inkqubela phambili ngakumbi kuphuhliso kunye nemveliso yeemveliso eziluhlaza njengephepha leekomityi ze-PE.
Ixesha lokuthumela: Epreli-21-2023