Polypropylene ya PP
Ingano isanzwe y'ikoreshwa:
Inganda z'imodoka (cyane cyane zikoresha ibikoresho birimo PP: ibirinda umwanda, imiyoboro y'umwuka, abafana, nibindi), ibikoresho (imiyoboro y'inzugi z'ibikoresho byo koza amasahani, imiyoboro y'umwuka yumutsa, amafuremu n'ibifuniko by'imashini imesa, imiyoboro y'inzugi za firigo, nibindi), Ubuyapani Koresha ibikoresho bikoreshwa mu bucuruzi (ibikoresho by'ubwatsi n'ubusitani nka
Imashini zo kogosha ibyatsi n'izisuka ubwatsi, nibindi).
Ibisabwa mu gutera inshinge:
Uburyo bwo kumisha: Iyo bibitswe neza, nta buryo bwo kumisha bukenewe.
Ubushyuhe bwo gushonga: 220~275℃, witondere kutarenga 275℃.
Ubushyuhe bw'ibihumyo: 40~80℃, 50℃ ni byo byitezwe. Urwego rw'ihinduka ry'ibihumyo ruterwa ahanini n'ubushyuhe bw'ibihumyo.
Igitutu cy'inshinge: kugeza kuri bar 1800.
Umuvuduko wo gutera: Muri rusange, gukoresha urushinge rwihuta bishobora kugabanya umuvuduko w'imbere ku rugero ruto. Iyo hari inenge ku buso bw'umuti, hagomba gukoreshwa urushinge rwihuta ku bushyuhe bwinshi.
Amarembo n'amadirishya: Ku magare asanzwe, uburebure busanzwe bw'umurambararo w'amagare ni mm 4 ~ 7. Ni byiza gukoresha umuyoboro w'uruziga n'umurambararo. Ubwoko bwose bw'amagare burashobora gukoreshwa. Umurambararo usanzwe w'amagare uri hagati ya mm 1 na 1.5, ariko amarembo mato nka mm 0.7 na yo ashobora gukoreshwa. Ku magare y'inkombe, uburebure bw'amagare bugomba kuba kimwe cya kabiri cy'ubugari bw'urukuta; ubugari bw'amagare bugomba kuba nibura inshuro ebyiri z'ubugari bw'urukuta. Ibikoresho bya PP bishobora gukoresha sisitemu ishyushye y'amagare.
Imiterere y'ibinyabutabire n'ibifatika:
PP ni ibikoresho bifite semi-crystalline. Birakomeye kurusha PE kandi bifite aho bishongesha cyane. Kubera ko homopolymer PP irakomera cyane iyo ubushyuhe buri hejuru ya 0°C, ibikoresho byinshi bya PP bicuruzwa ni copolymer zidasanzwe zifite ethylene cyangwa clamp copolymers 1 kugeza kuri 4% bifite ethylene nyinshi. Ibikoresho bya PP bya Copolymer bifite ubushyuhe buke bwo guhindagurika k'ubushyuhe (100°C), ubwisanzure buke, ubw'urumuri buke, uburimbane buke, ariko bifite imbaraga zikomeye zo gukubita. Ingufu za PP ziyongera uko ingano ya ethylene yiyongera. Ubushyuhe bwa Vicat bworoshya PP ni 150°C. Bitewe n'ubucucike bwinshi, uburimbane bw'ubuso n'ubudahangarwa bw'ibi bikoresho ni byiza cyane. PP ntabwo ifite ikibazo cyo gucika kw'ibidukikije. Ubusanzwe, PP ihindurwa wongeramo fibre y'ikirahure, inyongera z'icyuma cyangwa rubber ya thermoplastic. Umuvuduko w'amazi wa MFR wa PP uri hagati ya 1 na 40. Ibikoresho bya PP bifite MFR nke bifite ubudahangarwa bwiza ariko imbaraga nke zo kurekura. Ku bikoresho bifite MFR imwe, imbaraga z'ubwoko bwa copolymer ziba nyinshi kuruta iz'ubwoko bwa homopolymer. Bitewe no gushonga kw'ibinure, igipimo cyo gushonga kwa PP kiri hejuru cyane, muri rusange ni 1.8 ~ 2.5%. Kandi icyerekezo cyo gushonga ni cyiza cyane kuruta icya PE-HD n'ibindi bikoresho. Kongeramo 30% by'inyongera z'ibirahuri bishobora kugabanya gushonga kugeza kuri 0.7%. Ibikoresho bya PP bya homopolymer na copolymer bifite ubushobozi bwo kwinjiza ubushuhe, birwanya aside na alkali, kandi birwanya gushonga. Ariko, ntabwo ifite ubushobozi bwo guhangana na hydrocarboni zihumura neza (nk'ibinyabutabire bya benzene), ibinyabutabire bya hydrocarboni za chlorine (tetrachloride ya karuboni), nibindi. PP ntabwo ifite ubushobozi bwo guhangana na oxidation ku bushyuhe bwinshi nka PE.

Ibyacuibiyiko bya pulasitiki, imiyoboro yo gupimisha ya pulasitiki, ibikoresho byo guhumeka mu mazurun'ibindi bicuruzwa bihurira n'umubiri w'umuntu bikoresha ibikoresho bya PP. Dufite ibikoresho bya PP byo mu rwego rw'ubuvuzi n'ibikoresho bya PP byo mu rwego rw'ibiribwa. Kubera ko ibikoresho bya PP nta burozi bifite.