Cov khoom dab tsi yog tsim los ntawm PP?
Cov khoom twg yog tsim los ntawm PP?,
PP rau Caps thiab Kaw, PP cob rau Artificial nyom, PP resin rau ntim khoom noj,
Polypropylene yog cov khoom siv hluavtaws ua los ntawm polymerization ntawm propylene (CH3-CH = CH2) nrog H2 raws li qhov hnyav molecular hloov.Muaj peb stereomers ntawm PP - isotactic, atactic thiab syndiotactic.PP tsis muaj pawg polar thiab muaj cov khoom siv hluav taws xob zoo heev.Nws qhov nqus dej tsawg dua 0.01%.PP yog ib tug semi-crystalline polymer nrog zoo tshuaj stability.Nws ruaj khov rau feem ntau cov tshuaj tshwj tsis yog muaj zog oxidizers.Inorganic acid, alkali thiab ntsev daws yuav luag tsis muaj kev puas tsuaj rau PP.PP muaj cov cua kub zoo thiab tsis tshua muaj siab.Nws melting point yog nyob ib ncig ntawm 165 ℃.Nws muaj lub zog tensile siab thiab nto hardness thiab zoo ib puag ncig kev nyuaj siab tawg kuj.Nws tuaj yeem tiv taus 120 ℃ tsis tu ncua.
Sinopec yog tus tsim khoom loj tshaj plaws PP hauv Suav teb, Nws lub peev xwm PP suav txog 45% ntawm tag nrho lub tebchaws.Lub tuam txhab tam sim no muaj 29 PP cov nroj tsuag los ntawm cov txheej txheem txuas ntxiv (suav nrog cov uas tab tom tsim kho).Cov thev naus laus zis siv los ntawm cov chav no suav nrog Mitsui Chemical's HYPOL txheej txheem, Amoco's roj theem txheej txheem, Basell's Spheripol thiab Spherizone txheej txheem thiab Novolen's roj theem txheej txheem.Nrog nws lub peev xwm tshawb fawb muaj zog, Sinopec tau tsim nws tus kheej tsim lub voj voog thib ob rau PP ntau lawm.
PP nta
1.Cov txheeb ze ntom ntom yog me me, tsuas yog 0.89-0.91, uas yog ib qho ntawm cov khoom siv sib xws hauv cov yas.
2.zoo txhua yam khoom, ntxiv rau qhov cuam tshuam tsis kam, lwm yam khoom siv kho tshuab zoo dua li polyethylene, molding kev ua tau zoo.
3.Nws muaj kev kub ntxhov siab thiab kev siv tas li tuaj yeem ncav cuag 110-120 ° C.
4. Cov khoom siv tshuaj zoo, yuav luag tsis muaj dej nqus, thiab tsis hnov mob nrog cov tshuaj feem ntau.
5.Qhov kev ntxhib los mos yog ntshiab, tsis muaj tshuaj lom.
6. hluav taws xob rwb thaiv tsev zoo.
Feem ntau siv rau qib PP
Daim ntawv thov
Pob
PP yog siv los tsim cov khoom siv yas siv hauv zej zog, suav nrog:
Consumer Product Ntim
Ntim Cov Khoom Noj
Fibers
Automotive khoom
Artificial nyom
Caps thiab Kaw
Cov Khoom Siv Kho Tus Kheej
Industrial strapping
