PP polypropilene
Urutonde rusanzwe:
Inganda zitwara ibinyabiziga (cyane cyane zikoresha PP zirimo inyongeramusaruro zicyuma: ibyondo, imiyoboro yumuyaga, abafana, nibindi), ibikoresho (ibikoresho byo koza ibikoresho byo kumesa, imiyoboro yumuyaga wumuyaga, imashini imesa amakaramu hamwe nigifuniko, inzugi za firigo, nibindi), Ubuyapani Koresha ibicuruzwa byabaguzi (nibindi) ibyatsi n'ibikoresho byo mu busitani nka
Gutema ibyatsi no kuminjagira, nibindi).
Uburyo bwo gutera inshinge:
Kuvura byumye: Niba bibitswe neza, nta muti wumye usabwa.
Gushonga ubushyuhe: 220 ~ 275 ℃, witondere kutarenga 275 ℃.
Ubushyuhe bwubushyuhe: 40 ~ 80 ℃, 50 ℃ birasabwa.Urwego rwo korohereza ibintu rushingiye ahanini ku bushyuhe bwubushyuhe.
Umuvuduko wo gutera inshinge: kugeza 1800bar.
Umuvuduko wo gutera inshinge: Mubisanzwe, gukoresha inshinge yihuta birashobora kugabanya umuvuduko wimbere kugeza byibuze.Niba hari inenge hejuru yibicuruzwa, hagomba gukoreshwa inshinge nkeya ku bushyuhe bwo hejuru.
Abiruka n'amarembo: Kubiruka bakonje, ubusanzwe kwiruka diameter ni 4 ~ 7mm.Birasabwa gukoresha icyuma kizenguruka uruziga na runner.Ubwoko bwose bwamarembo burashobora gukoreshwa.Irembo risanzwe rya diameter riva kuri 1 kugeza kuri 1.5mm, ariko amarembo mato nka 0.7mm nayo arashobora gukoreshwa.Ku marembo yo ku nkombe, ubujyakuzimu ntarengwa bugomba kuba igice cyubugari bwurukuta;ubugari ntarengwa bw'irembo bugomba kuba byibuze inshuro ebyiri ubugari bwurukuta.Ibikoresho bya PP birashobora gukoresha sisitemu ishyushye.
Ibikoresho bya shimi nu mubiri:
PP ni igice cya kirisiti.Birakomeye kuruta PE kandi ifite ingingo yo hejuru yo gushonga.Kubera ko PP ya homopolymer PP yoroheje cyane iyo ubushyuhe buri hejuru ya 0 ° C, ibikoresho byinshi byubucuruzi bya PP ni kopi yimikorere idasanzwe hamwe na Ethylene 1 kugeza 4% cyangwa clamp copolymers ifite vitamine nyinshi.Ibikoresho bya Copolymer PP bifite ubushyuhe buke bwo kugoreka ubushyuhe (100 ° C), gukorera mu mucyo muke, ububengerane buke, gukomera, ariko bifite imbaraga zikomeye.Imbaraga za PP ziyongera hamwe no kwiyongera kwa Ethylene.Ubushyuhe bwa Vicat bwa PP ni 150 ° C.Bitewe na kristu ndende, hejuru yubuso hamwe no kwihanganira ibintu neza nibyiza cyane.PP ntabwo ifite ikibazo cyo guhagarika ibidukikije.Mubisanzwe, PP ihindurwa hiyongereyeho fibre fibre, ibyongeweho ibyuma cyangwa reberi ya termoplastique.Igipimo cyo gutembera MFR ya PP iri hagati ya 1 na 40. Ibikoresho bya PP bifite MFR nkeya bifite imbaraga zo guhangana ningaruka ariko imbaraga zo kuramba.Kubikoresho bifite MFR imwe, imbaraga zubwoko bwa copolymer zirenze iz'ubwoko bwa homopolymer.Bitewe no korohereza, kugabanuka kwa PP ni hejuru cyane, muri rusange 1.8 ~ 2.5%.Kandi icyerekezo kimwe cyo kugabanuka ni cyiza cyane kuruta icya PE-HD nibindi bikoresho.Ongeraho 30% yinyongera yikirahure irashobora kugabanya kugabanuka kugera kuri 0.7%.Ibikoresho byombi bya homopolymer na copolymer PP bifite uburyo bwiza bwo kwinjiza neza, aside hamwe na alkali irwanya ruswa, hamwe no kurwanya solubilité.Nyamara, ntishobora kurwanya hydrocarbone ya aromatiya (nka benzene), hydrocarbone ya chlorine (karubone tetrachloride), n'ibindi. PP ntabwo irwanya okiside mubushyuhe bwinshi nka PE.

Iwacuibiyiko bya plastiki, ibizamini bya pulasitiki, guhumeka izurunibindi bicuruzwa bihura numubiri wumuntu ukoresha ibikoresho bya PP.Dufite ibikoresho byo mubuvuzi PP nibikoresho byo murwego rwa PP.Kuberako ibikoresho bya PP bidafite uburozi.