Yiziphi izici zePolypropylene (PP)?

Ezinye zezinto ezibaluleke kakhulu ze-polypropylene zifaka:
1.Ukumelana Namakhemikhali: Izisekelo ezixutshiwe nama-asidi akusabeli kalula nge-polypropylene, okwenza kube ukukhetha okuhle kweziqukathi zoketshezi olunjalo, njengama-ejenti okuhlanza, imikhiqizo yosizo lokuqala, nokuningi.
I-2.I-Elasticity and Toughness: I-Polypropylene izosebenza ngokunwebeka phezu kohlu oluthile lokuchezuka (njengazo zonke izinto zokwakha), kodwa futhi izobhekana nokuguqulwa kwepulasitiki ekuqaleni kwenqubo yokuguqulwa, ngakho ngokuvamile ibhekwa njengento "eqinile". Ukuqina yigama lobunjiniyela elichazwa njengekhono lezinto ezibonakalayo ukonakala (ngokwepulasitiki, hhayi ngokunwebeka) ngaphandle kokuphuka.
3.Ukumelana Nokukhathala: I-Polypropylene igcina isimo sayo ngemva kokuhlushwa okuningi, ukugoba, kanye/noma ukugoba. Lesi sakhiwo sibaluleke kakhulu ekwenzeni amahinge aphilayo.
I-4.I-Insulation: i-polypropylene inokumelana okuphezulu kakhulu nogesi futhi iwusizo kakhulu ezingxenyeni ze-electronic.
5.I-Transmissivity: Nakuba i-Polypropylene ingenziwa ibe sobala, ngokuvamile ikhiqizwa ukuze ibe nombala opaque ngokwemvelo. I-Polypropylene ingasetshenziselwa izinhlelo zokusebenza lapho ukudluliswa kokukhanya okuthile kubalulekile noma lapho kunevelu yobuhle. Uma kufunwa ukuhanjiswa okuphezulu, amapulasitiki afana ne-Acrylic noma i-Polycarbonate yizinketho ezingcono.
I-Polypropylene ihlukaniswa njenge-"thermoplastic" (ngokungafani ne-"thermoset") impahla ehlobene nendlela ipulasitiki esabela ngayo ekushiseni. Izinto ze-Thermoplastic ziba uketshezi lapho zincibilika (cishe ama-degrees Celsius angama-130 esimweni se-polypropylene).
Isibaluli esiwusizo esikhulu mayelana ne-thermoplastics ukuthi angashiswa aze ancibilike, apholiswe, futhi ashisise futhi ngaphandle kokuwohloka okukhulu. Esikhundleni sokushiswa, ama-thermoplastics afana ne-polypropylene liquefy, ewavumela ukuthi abunjwe kalula ngomjovo bese aphinde asetshenziswe kabusha.
Ngokuphambene, amapulasitiki e-thermoset angashiswa kanye kuphela (imvamisa phakathi nenqubo yokubumba umjovo). Ukushisisa kokuqala kubangela ukuthi kumiswe okokusebenza kwe-thermoset (okufana ne-epoxy ezingxenye ezimbili) okuholela ekushintsheni kwamakhemikhali angakwazi ukuhlehliswa. Uma uzama ukushisisa ipulasitiki ye-thermoset ezingeni lokushisa eliphezulu okwesibili izovele ishe. Lesi sici senza okokusebenza kwe-thermoset kube amakhandidethi ampofu wokugaywa kabusha.