I-plastiki

Iplastiki sisixhobo esitshintshayo ngokwendlela esime ngayo, ngoko ke izinto ezininzi zisenokwenziwa ngeplastiki.  zininzi iintlobo zeplastiki.  Ezinye zazo zinokuma ngendlela ethile kuphela xa zigqitywa kwenziwa; zize ke emva koko ziqine.  Ezinye zingatshintsha ngokuthi zitshiswe okanye zide zinyibilikiswe.  

Uninzi lweplastiki zenziwe ngezandla;  azenzeki ngokwendalo.  zivamise ukwenziwa nge-oyile evela emhlabeni. Inkqubo yokwenza iiplastiki intsokothile.  Uninzi lwezixhobo ezibizwa ngokuba ziiplastiki zizii- polymers. Ii-Polymers ngamatsheyini amade ee-atoms aphingeneyo.  

Abantu basebenze ngeeplastiki  ezenziwe ngee-polymers ixesha elide.  U-Alexander Parkes, umcebisi weNgesi (1813-1890), wenza uhlobo lweplaski yokuqala ngo-1855. Yayiqinile kodwa isebenziseka kwaye ikhaya, waza wayibiza ngokuba yi- "Parkesine."

Iiplastiki zithe saa emhlabeni kwaye maxa wambi ukuba uyawatshisa akhupha ivumba eliyingozi.  Ukuba asiwasebenzisi kwakhona, abakukungcola.  

 Ukwenziwa kwe-Plastic  
Iiplastiki zivamise ukuba-petrochemicals, zenziwa kwi-petroleum, uhlobo lwe-oyile. Iinjineli zithi ziyicole i-petroleum ehamba ngenkqubo yobushushu.  Ivelisa i-ethylene ne-propylene, eziziseko zokwakha iikhemikali zeeplastiki ezininzi. Ezi khemikhali ziye zidityaniswe ukuze zikhuphe i- polymer.

 Iiplastiki ezaziwayo nemisebenzi yazo 
 Polyamide (usually called nylon)  Women's stockings.
 Polycarbonate – bulletproof glass, compact discs, DVDs.
 Polyethylene – tubes made of plastic
 Polyethylene terephtalate (called PET when used for bottles, and polyester when used for clothes or other materials)
 Polypropylene
 Polystyrene
 Polyurethane
 Polyvinyl chloride (called PVC, usually). Used for insulation of electric wires, but also for pipes and road signs.