cov khoom

PP cob rau PP orientation stretching polypropylen,
Polypropylene cob los tsim OPP zaj duab xis,

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

Nrog ntau tshaj 100 qhov sib txawv ntawm Polypropylene Zaj duab xis yog ib qho ntawm cov yeeb yaj kiab uas siv ntau tshaj plaws hauv ntiaj teb.Ib daim ntawv thov rau polypropylene yog raws li kev taw qhia polypropylene (OPP).Cov yeeb yaj kiab no muaj cov ntaub ntawv pov thawj zoo heev uas ua rau qhov no zoo heev rau kev siv cov inks ib txwm ua kom pom tseeb luam tawm.Niaj hnub no nws yog ib qho ua tau yooj yim ntim zaj duab xis thib ob tsuas yog qhov ntom ntom polyethylene hauv ntim.

(OPP) Orientated Polypropylene Zaj duab xis
Lub thermoplastic polymer siv ntau yam kev siv xws li ntim, mus rau ntaub pua plag.Thawj daim ntawv thov ntawm OPP zaj duab xis yog nyob rau hauv ntim khoom noj vim yog lub zog zoo, siab clarity, txaus thaiv cov khoom thiab tus nqi qis dua piv rau cellophane.Nws yog nyob rau hauv yuav luag txhua feem ntawm koj lub neej txhua hnub.Polypropylene yog heev tiv taus rau qaug zog.Yog li lub pob khawm yas tuaj yeem qhib thiab kaw ntau dua 1000 zaug uas tsis muaj zog.Feem ntau flip-top ntim muaj qhov no.Cov txheej txheem melting ntawm polypropylene yog tiav los ntawm extrusion thiab molding.Cov txheej txheem shaping feem ntau siv yog txhaj tshuaj molding.Lwm cov txheej txheem yog tshuab moulding thiab txhaj tshuaj stretch tshuab molding.Los ntawm kev muaj peev xwm los txiav txim siab qee qib nrog cov khoom tshwj xeeb molecular thaum tsim khoom ua rau ntau daim ntawv thov siv kawg.Ib qho piv txwv ntawm qhov no yuav yog kev siv cov tshuaj tiv thaiv kab mob los pab cov polypropylene nto tiv thaiv av thiab plua plav.