Kayan farantin farantin jigilar kaya na yau da kullun

Polyoxymethylene (POM), wanda aka fi sani da acetal polyacetal, da kuma polyformaldehyde, wani nau'in thermoplastic ne na injiniya wanda ake amfani da shi a cikin sassan daidaitacce waɗanda ke buƙatar tauri mai yawa, ƙarancin gogayya da kwanciyar hankali mai kyau. Kamar sauran polymers na roba da yawa, ana samar da shi ta hanyar kamfanonin sinadarai daban-daban tare da dabarun da suka ɗan bambanta kuma ana sayar da su daban-daban ta hanyar sunaye kamar Delrin, Kocetal, Ultraform, Celcon, Ramtal, Duracon, Kepital, Polypenco, Tenac da Hostaform. POM yana da siffa ta ƙarfi, tauri da tauri har zuwa −40 °C. POM fari ne mai haske saboda yawan sinadarin kristal ɗinsa amma ana iya samar da shi da launuka iri-iri. POM yana da yawa daga 1.410–1.420 g/cm3.

Polypropylene (PP), wanda aka fi sani da polypropene, Polypropylene wani nau'in polymer ne mai thermoplastic wanda ake amfani da shi a fannoni daban-daban. Ana samar da shi ta hanyar polymerization na girma sarkar daga monomer propylene. Polypropylene yana cikin rukunin polyolefins kuma yana da ɗan lu'ulu'u kuma ba shi da polar. Abubuwan da ke cikinsa suna kama da topolyethylene, amma yana da ɗan tauri kuma yana jure zafi. Abu ne mai fari, mai ƙarfi a injiniya kuma yana da juriyar sinadarai mai yawa.

Nailan 6(PA6) ko polycaprolactam polymer ne, musamman semicrystalline polyamide. Ba kamar yawancin sauran nailan ba, nailan 6 ba polymer ne mai narkewa ba, amma an samar da shi ta hanyar polymerization na buɗe zobe; wannan ya sa ya zama misali na musamman a kwatanta tsakanin polymers mai narkewa da polymers masu ƙari.