Guraben yana nufin wani abu na halitta wanda yake da ƙarfi, rabin-ƙarfi ko kuma na ƙarya a zafin ɗaki, kuma gabaɗaya yana da yanayin laushi ko narkewa bayan an dumama shi. Idan aka yi masa laushi, ƙarfin waje yana shafar shi kuma yawanci yana da yanayin kwarara. A faffadan ma'ana, inda polymers ɗin a matsayin matrix na filastik duk zasu iya zama resins.

Filastik yana nufin wani abu na polymer na halitta wanda aka yi ta hanyar ƙera shi da sarrafawa tare da resin a matsayin babban sashi, yana ƙara wasu ƙarin abubuwa ko wasu abubuwan taimako.

Nau'ikan robobi da aka fi amfani da su:

Roba na yau da kullun: polyethylene, polyvinyl chloride, polystyrene, polymethylmethacrylate.

Roba na injiniya gabaɗaya: polyester amine, polycarbonate, polyoxymethylene, polyethylene terephthalate, polybutylene terephthalate, polyphenylene ether ko polyphenylene ether da aka gyara, da sauransu.

Roba na musamman na injiniya: polytetrafluoroethylene, polyphenylene sulfide, polyimide, polysulfone, polyketone da liquid crystal polymer.

Roba mai aiki: robobi masu sarrafawa, robobi masu piezoelectric, robobi masu maganadisu, zare na gani na filastik da robobi masu gani, da sauransu.

Roba mai sanyaya zafi na yau da kullun: resin phenolic, resin epoxy, polyester mara cika, polyurethane, silicone da amino plastic, da sauransu.

Cokulan filastik, ɗaya daga cikin manyan kayayyakin filastik ɗinmu, ana sarrafa su ne daga kayan abinci na PP.mazuraran filastik, Sandunan shaƙar hanci, duk kayan aikin likita ko na dakin gwaje-gwaje ko kayan aikin kicin na gida suma kayan abinci ne masu inganci.

Yankunan aikace-aikacen filastik:

1. Kayan marufi. Kayan marufi sune mafi yawan amfani da robobi, wanda ya kai fiye da kashi 20% na jimillar. An raba manyan kayayyakin zuwa:

(1) Kayayyakin fim, kamar fim ɗin marufi mai sauƙi da nauyi, fim ɗin shinge, fim ɗin da za a iya rage zafi, fim ɗin manne kansa, fim ɗin hana tsatsa, fim ɗin hawaye, fim ɗin matashin iska, da sauransu.

(2) Kayayyakin kwalba, kamar kwalaben fakitin abinci (mai, giya, soda, farin giya, vinegar, miyar waken soya, da sauransu), kwalaben kwalliya, kwalaben magani da kwalaben sinadarai masu sinadaran sinadarai.

(3) Kayayyakin akwati, kamar akwatunan abinci, kayan aiki, kayan hannu, kayan al'adu da ilimi, da sauransu.

(4) Kayayyakin kofi, kamar kofunan abin sha da za a iya zubarwa, kofunan madara, kofunan yogurt, da sauransu.

(5) Kayayyakin akwati, kamar akwatunan giya, akwatunan soda, akwatunan abinci

(6) Kayayyakin jakunkuna, kamar jakunkuna da jakunkunan saka

2. Abubuwan buƙata na yau da kullun

(1) Kayayyaki daban-daban, kamar su kwano, ganga, akwatuna, kwanduna, faranti, kujeru, da sauransu.

(2) Kayan al'adu da wasanni, kamar alkalami, rulers, badminton, tebur tennis, da sauransu.

(3) Tufafi a abinci, kamar tafin takalma, fata ta wucin gadi, fata ta roba, maɓallai, fil na gashi, da sauransu.

(4) Kayan kicin, kamar cokula, allunan yanka, cokali mai yatsu, da sauransu.

Shi ke nan a yau, sai mun haɗu a karo na gaba.