Nau'ukan gama gari da gabatarwar filastik.

Filastik, wato roba, robar granule ne da aka samar ta hanyar polymerization na kayan tace man fetur da wasu abubuwan sinadarai.Masu masana'anta ne ke sarrafa shi don samar da samfuran filastik na sifofi daban-daban.

1. Rarraba robobi: Bayan sarrafawa da dumama, ana iya raba robobi zuwa kashi biyu: thermoplastic da thermosetting.Na gama gari sune kamar haka:
1) PVC-polyvinyl chloride
2) PE - polyethylene, HDPE - babban yawa polyethylene, LDPE - low yawa polyethylene
3) PP - polypropylene
4) - polystyrene
5) Sauran kayan bugu na yau da kullun sune PC, PT, PET, EVA, PU, ​​KOP, Tedolon, da sauransu.

2. Hanyar ganewa mai sauƙi na nau'ikan robobi daban-daban:
Bambance bisa ga kamanni:
1) Tef ɗin PVC yana da taushi kuma yana da haɓaka mai kyau.Bugu da ƙari, akwai kuma wasu abubuwa masu wuya ko kumfa, kamar bututun ruwa, kofofin zamewa, da dai sauransu.
2) PS, ABS, taushi da gaggautsa rubutu, yawanci surface allura gyare-gyare.
3) HDPE a cikin PE yana da haske a cikin rubutu, yana da kyau a cikin tauri da rashin ƙarfi, yayin da LDPE yana da ɗan ƙarami.
4) PP yana da wani bayyanannen gaskiya kuma yana da karye.

Bambance bisa ga kaddarorin sinadarai:
1) Ana iya narkar da PS, PC da ABS a cikin toluene don lalata saman su.
2) PVC ba shi da narkewa da benzene, amma ana iya narkar da shi da ketone ƙarfi.
3) PP da PE suna da juriya na alkali mai kyau da kyakkyawan juriya mai ƙarfi.

Bambance bisa ga flammability:
1) Lokacin da aka kona PVC da wuta, zai lalata warin chlorine, kuma da zarar wutar ta tashi ba za ta ƙone ba.
2) PE zai haifar da ƙanshi mai laushi lokacin konewa, tare da ɗigon ruwa, amma PP ba zai yi ba, kuma duka biyu za su ci gaba da ƙonewa bayan barin wuta.

3. Halayen robobi daban-daban
1) Halayen PP: Ko da yake PP yana da gaskiya, rubutunsa yana da sauƙi don karya, wanda ya fi dacewa da kayan abinci.Ana iya samun samfura iri-iri daban-daban ta hanyar inganta lahaninsu.Misali: OPP da PP ana fadada su gaba ɗaya don inganta ƙarfinsu, waɗanda galibi ana amfani da su a cikin marufi na waje na tawul ɗin takarda da sara.
2) Halayen PE: PE an yi shi da ethylene.Girman LDPE kusan 0.910 g/cm-0.940 g/cm.Saboda kyakkyawan ƙarfinsa da ƙarfin ƙarfin danshi, ana amfani dashi sau da yawa a cikin kayan abinci, kayan kwalliya, da dai sauransu;Girman HDPE kusan 0.941 g/cm ko fiye.Saboda yanayin haske da juriya na zafi, ana amfani dashi sau da yawa a cikin jakunkuna da jakunkuna masu dacewa iri-iri.