Yiziphi Izici zePolypropylene (PP)?

Ezinye zezimpawu ezibaluleke kakhulu ze-polypropylene yilezi:
1. Ukumelana Namakhemikhali: Izisekelo nama-asidi axutshwe kahle awasabela kalula nge-polypropylene, okwenza kube ukukhetha okuhle kwezitsha ezinalezi ziphuzo, njengezinto zokuhlanza, imikhiqizo yosizo lokuqala, nokuningi.
2. Ukunwebeka Nokuqina: I-Polypropylene izosebenza ngokunwebeka phezu kobubanzi obuthile bokuphambuka (njengazo zonke izinto), kodwa izophinde ibhekane nokuwohloka kwepulasitiki ekuqaleni kwenqubo yokuwohloka, ngakho-ke ngokuvamile ibhekwa njengento "eqinile". Ukuqina yigama lobunjiniyela elichazwa njengekhono lento yokuwohloka (ngokwepulasitiki, hhayi ngokunwebeka) ngaphandle kokuphuka.
3. Ukumelana Nokukhathala: I-Polypropylene igcina isimo sayo ngemva kokuguguleka okukhulu, ukugoba, kanye/noma ukugoba. Lesi sici sibaluleke kakhulu ekwenzeni ama-hinge aphilayo.
4. Ukuvikela: i-polypropylene inokumelana okukhulu kakhulu nogesi futhi iwusizo kakhulu ezingxenyeni zikagesi.
5. Ukudluliselwa Kwezinto Eziphilayo: Nakuba i-Polypropylene ingenziwa ibonakale, ngokuvamile ikhiqizwa ukuze ibe nombala ongacacile ngokwemvelo. I-Polypropylene ingasetshenziswa ekusetshenzisweni lapho ukudluliselwa kokukhanya kubalulekile noma lapho kunenani lobuhle khona. Uma kudingeka ukudluliselwa okuphezulu kwezinto eziphilayo khona-ke amapulasitiki afana ne-Acrylic noma i-Polycarbonate ayizinketho ezingcono.
I-Polypropylene ihlukaniswa njengezinto “ze-thermoplastic” (ngokungafani ne-“thermoset”) eziphathelene nendlela ipulasitiki esabela ngayo ekushiseni. Izinto ze-Thermoplastic ziba uketshezi lapho zincibilika khona (cishe ama-degree Celsius angu-130 uma kukhulunywa nge-polypropylene).
Isici esibalulekile ngama-thermoplastic ukuthi angashiswa aze afike ezingeni lokuncibilika, apholiswe, bese eshiswa futhi ngaphandle kokuwohloka okukhulu. Esikhundleni sokusha, ama-thermoplastic afana ne-polypropylene ayancibilika, okuvumela ukuthi afakwe kalula bese ephinda asetshenziswe.
Ngokuphambene nalokho, amapulasitiki e-thermoset angashiswa kanye kuphela (ngokuvamile ngesikhathi senqubo yokubumba ngomjovo). Ukushisa kokuqala kubangela ukuthi izinto ze-thermoset ziqine (ezifana ne-epoxy enezingxenye ezimbili) okuholela ekushintsheni kwamakhemikhali okungenakushintshwa. Uma uzama ukushisa ipulasitiki ye-thermoset ibe yizinga lokushisa eliphezulu okwesibili, izomane ishe. Lesi sici senza izinto ze-thermoset zingabi namathuba okuphinda zisetshenziswe.