Owona mahluko ubalulekileyo phakathi kweplastiki kunye nerabha kukuba ukuguqulwa kweplastiki kukuguqulwa kweplastiki, ngelixa irabha i-elastic deformation.Ngamanye amazwi, iplastiki ayilula ukuyibuyisela kwimeko yayo yangaphambili emva kokuguqulwa, ngelixa irabha ilula.I-elasticity yeplastiki incinci kakhulu, ngokuqhelekileyo ingaphantsi kwe-100%, ngelixa irabha inokufikelela kwi-1000% okanye ngaphezulu.Uninzi lwenkqubo yokubumba iplastiki igqityiwe kwaye inkqubo yemveliso igqityiwe, ngelixa inkqubo yokubumba irabha idinga inkqubo ye-vulcanization.
Iplastiki kunye nerabha zombini zizixhobo zepolymer, eziqulunqwe ikakhulu yi-carbon kunye ne-athomu ye-hydrogen, kwaye ezinye ziqulethe i-oksijini encinci, i-nitrogen, i-chlorine, i-silicon, i-fluorine, i-sulphur kunye nezinye ii-athom.Zineepropati ezikhethekileyo kunye nokusetyenziswa okukhethekileyo.Iiplastiki kwiqondo lobushushu begumbi Iqinile, inzima kakhulu, kwaye ayinakolulwa kwaye ikhubazeke.Irabha ayikho phezulu kukuqina, i-elastic, kwaye inokolulwa ukuze ibe nde.Inokubuyiselwa kwisimo sayo sokuqala xa iyeka ukolula.Oku kubangelwa zizakhiwo zabo ezahlukeneyo zeemolekyuli.Omnye umahluko kukuba iPlastiki inokuphinda isetyenziswe kwaye iphinde isetyenziswe amaxesha amaninzi, ngelixa irabha ingenakuphinda isetyenziswe ngokuthe ngqo.Inokusetyenzwa kuphela kwirabha ebuyiselweyo phambi kokuba isetyenziswe.Ubume beplastiki kwii-degrees ezingaphezu kwe-100 ukuya kuma-degrees angama-200 kunye nokuma kwerabha kwi-60 ukuya kwi-100 degrees.Ngokufanayo, iplastiki ayibandakanyi irabha.
Indlela yokwahlula iplastiki kwiplastiki?
Ukusuka kwindawo yokujonga, i-rubber ine-soft, ikhululekile kunye ne-delicate touch, kwaye inomlinganiselo othile we-elasticity, ngelixa iplastiki i-inelastic ngokupheleleyo kwaye inomlinganiselo othile wokuqina ngenxa yokuba ilukhuni kwaye i-brittle.
Ukusuka kwijiko loxinzelelo loxinzelelo, iplastiki ibonisa imodyuli ephezulu yolutsha kwinqanaba lokuqala loxinzelelo.Igophe loxinzelelo linokwenyuka okunyukayo, kwaye emva koko isivuno, ukunweba kunye nokwaphuka kwenzeka;irabha idla ngokuba nenqanaba elincinci lokuguqula.Uxinzelelo olucacileyo luyenyuka, luze lungene kwinqanaba elithambileyo lokunyuka, de ijiko loxinzelelo libonise indawo enyukayo xa sele iza kophuka.
Ukusuka kwimbono ye-thermodynamic, iplastiki ingaphantsi kobushushu beglasi yokutshintsha kwezinto kuluhlu lobushushu bokusetyenziswa, ngelixa irabha isebenza kwimo enwebekayo ngaphezu kobushushu beglasi.
Ixesha lokuposa: Dec-31-2021