Kunezinhlobo ezimbili eziyinhloko ze-polypropylene ezitholakalayo: ama-homopolymers nama-copolymers.Ama-copolymers aphinde ahlukaniswe abe ama-block copolymers nama-copolymers angahleliwe.
Isigaba ngasinye silingana izinhlelo zokusebenza ezithile kangcono kunezinye.I-Polypropylene ivame ukubizwa ngokuthi "insimbi" yemboni yepulasitiki ngenxa yezindlela ezihlukahlukene ezingashintshwa ngazo noma zenziwe ngokwezifiso ukuze zifeze kangcono inhloso ethile.
Lokhu kuvame ukufezwa ngokwethula izithasiselo ezikhethekile kuyo noma ngokuyikhiqiza ngendlela ekhetheke kakhulu.Lokhu kuvumelana nezimo kuyisici esibalulekile.
I-Homopolymer polypropyleneiyibanga lenhloso evamile.Ungacabanga ngalokhu njengesimo esizenzakalelayo se-polypropylene material.Vimba i-copolymeri-polypropylene inamayunithi e-co-monomer ahlelwe ngamabhulokhi (okungukuthi, ngephethini evamile) futhi aqukethe noma yikuphi phakathi kuka-5% kuya ku-15% we-ethylene.
I-Ethylene ithuthukisa izici ezithile, njengokumelana nomthelela kuyilapho ezinye izithasiselo zithuthukisa ezinye izakhiwo.
I-copolymer engahleliwei-polypropylene - ngokungafani ne-block copolymer polypropylene - inamayunithi e-co-monomer ahlelwe ngamaphethini angajwayelekile noma angahleliwe eduze kwe-polypropylene molecule.
Ngokuvamile zihlanganiswa nanoma yikuphi phakathi kuka-1% kuya ku-7% ethylene futhi zikhethelwa izinhlelo zokusebenza lapho kufunwa khona umkhiqizo othambile, ocace kakhudlwana.
Isikhathi sokuthumela: Dec-05-2022