Kukho iintlobo ezimbini eziphambili zepolypropylene ezikhoyo: i-homopolymers kunye ne-copolymers.Ii-copolymers zikwahlulahlulwe ngakumbi kwi-block copolymers kunye ne-random copolymers.
Udidi ngalunye lungena izicelo ezithile ngcono kunolunye.I-Polypropylene idla ngokubizwa ngokuba "yintsimbi" yoshishino lweplastiki ngenxa yeendlela ezahlukeneyo ezinokuthi zilungiswe okanye zenziwe ngokwezifiso ukuze zifezekise injongo ethile.
Oku kudla ngokufezekiswa ngokwazisa izongezo ezikhethekileyo kuyo okanye ngokuyivelisa ngendlela ekhethekileyo.Oku kuziqhelanisa neemeko kuyipropathi ebalulekileyo.
Homopolymer polypropylenelibakala lenjongo jikelele.Unokucinga oku njengemeko engagqibekanga yemathiriyeli yepolypropylene.Vimba i-copolymeri-polypropylene ineeyunithi ze-co-monomer ezicwangciswe kwiibhloko (oko kukuthi, kwipateni eqhelekileyo) kwaye iqulethe naphi na phakathi kwe-5% ukuya kwi-15% ye-ethylene.
I-ethylene iphucula iipropathi ezithile, njengokuchasa impembelelo ngelixa ezinye izongezo ziphucula ezinye iipropathi.
Copolymer Randomi-polypropylene - ngokuchaseneyo ne-block copolymer polypropylene - ineeyunithi ze-co-monomer ezicwangciswe ngeendlela ezingaqhelekanga okanye ezingaqhelekanga kunye ne-polypropylene molekyuli.
Zidla ngokudityaniswa naphi na phakathi kwe-1% ukuya kwi-7% ye-ethylene kwaye zikhethelwe usetyenziso apho kufunwa imveliso ethambileyo, ecace ngakumbi.
Ixesha lokuposa: Dec-05-2022