Kala soocidda PP iyo hantida faa'iidooyinka iyo khasaaraha:
Polypropylene (PP) waxa loo qaybiyaa homo-polymer polypropylene (PP-H), block (saamayn) co-polymer polypropylene (PP-B) iyo random ( random) co-polymer polypropylene (PP-R).Waa maxay faa'iidooyinka, khasaaraha iyo isticmaalka PP?La wadaag maanta.
1. Homo-polymer polypropylene (PP-H)
Waxaa lagu polymerized ka monomer propylene hal, iyo silsilad molecular kuma jiraan monomer ethylene, sidaa darteed joogto ah ee silsiladda kelli waa mid aad u sarreeya, sidaas darteed maaddadu waxay leedahay crystallinity sare iyo waxqabadka liita.Si loo hagaajiyo jajabnaanta PP-H, alaab-qeybiyeyaasha alaabta ceeriin qaarkood waxay sidoo kale isticmaalaan habka isku dhafka polyetylen iyo caagga ethylene-propylene si loo hagaajiyo adkaanta walxaha, laakiin asal ahaan ma xallin karto xasilloonida kuleylka u adkaysata muddada dheer ee PP. -H.waxqabadka
Faa'iidooyinka: xoog wanaagsan
Khasaaro: caabbinta saamaynta liidata (ka sii jajaban), adkaanta liidata, xasilloonida cabbirka liidata, gabowga fudud, xasilloonida iska caabbinta kulaylka muddada-dheer liidata
Codsiga: Fasalka afuufaya extrusion, darajada dunta fidsan, darajada qaabaynta duritaanka, darajada fiber-ka, fasalka afuufka.Waxa loo isticmaali karaa suunka, dhalooyinka lagu afuufo, burushka, xargaha, bacaha tolmada leh, alaabta lagu ciyaaro, galalka, qalabka korontada, alaabta guriga, sanduuqyada qadada microwave, sanduuqyada kaydinta, duubista filimada warqad
Habka takoorka: marka dabku gubo, siliggu waa siman yahay, mana dheera.
2. Bakhtiyaa-nasiib ( random) polypropylene koobiyeysan (PP-R)
Waxaa lagu helaa co-polymerization monomer propylene iyo qadar yar oo ah ethylene (1-4%) monomer hoos yimaada ficilka kulaylka, cadaadiska iyo kicinta.Monomer-ka ethylene si aan kala sooc lahayn ayaa loogu qaybiyaa silsiladda dheer ee propylene.Ku darida random ethylene waxay yaraynaysaa crystallinity iyo barta dhalaalaysa ee polymer ah, iyo hagaajinaysaa waxqabadka walxaha marka la eego saamaynta, muddo dheer iska caabin hydrostatic hydrostatic, gabowga hawada kulaylka muddada dheer, iyo habaynta tuubooyinka iyo qaabaynta.Qaab dhismeedka silsiladda molecular PP-R, content monomer ethylene iyo tilmaamayaasha kale waxay saameyn toos ah ku leeyihiin xasiloonida kulaylka ee muddada dheer, sifooyinka farsamada iyo sifooyinka qalabka.Sida aan kala sooc lahayn ee loo qaybiyo monomer ethylene ee silsiladda molecular propylene, ayaa aad muhiim u ah isbeddelka guryaha polypropylene.
Faa'iidooyinka: wax qabad wanaagsan oo dhamaystiran, xoog sare, qallafsanaan sare, caabbinta kulaylka wanaagsan, xasilloonida cabbirka wanaagsan, heerkul aad u hooseeya oo adag (debacsanaan wanaagsan), daahfurnaan wanaagsan, dhalaal wanaagsan
Khasaaraha: waxqabadka ugu fiican ee PP
Codsiga: Fasalka afuufaya kaxaynta, darajada filimka, darajada qaabaynta duritaanka.Tuubooyinka, filimada, dhalooyinka dhibco, weel aad u hufan, alaab guri oo hufan, saliingaha la tuuri karo, filimada warqadda duuban
Habka aqoonsiga: uma eka madoow ka dib marka uu shido, oo wuxuu soo saari karaa silig wareeg ah oo dheer
3. Block (saamayn) co-polymer polypropylene (PP-B)
Maaddada ethylene waa mid aad u sareysa, guud ahaan 7-15%, laakiin sababtoo ah suurtogalnimada isku xirka laba monomers ethylene iyo saddex monomers ee PP-B waa mid aad u sarreeya, waxay muujinaysaa in maadaama monomer ethylene kaliya uu ku jiro marxaladda xannibaadda, joogtada ah PP-H waa la dhimay, sidaas darteed ma gaari karto ujeedada hagaajinta waxqabadka PP-H marka la eego barta dhalaalka, caabbinta cadaadiska hydrostatic ee muddada dheer, gabowga kuleylka kuleylka muddada dheer iyo samaynta tuubooyinka iyo samaynta.
Faa'iidooyinka: iska caabbinta saameyn wanaagsan, heer gaar ah oo adag ayaa hagaajinaysa awoodda saameynta
Khasaaro: hufnaan hoose, dhalaal hooseeya
Codsiga: Fasalka extrusion, darajada qaabaynta duritaanka.Bumpers, alaabta derbiga dhuuban, baaskiilada, qalabka isboortiga, boorsooyinka, baaldiyada rinjiga, sanduuqyada baytariga, alaabta derbiga khafiifka ah
Habka aqoonsiga: uma eka madoow ka dib marka uu shido, oo wuxuu soo saari karaa silig wareeg ah oo dheer
Qodobbada caadiga ah: anti-hygroscopicity, acid iyo alkali caabbinta daxalka, caabbinta milanka, caabbinta oksaydhka liidata heerkulka sare
Heerka socodka MFR ee PP wuxuu ku jiraa inta u dhaxaysa 1-40.Qalabka PP ee leh MFR hooseeya waxay leeyihiin iska caabin saameyn wanaagsan laakiin hoos u dhigista.Maaddada MFR isku midka ah, xoogga nooca co-polymer ayaa ka sarreeya kan nooca homo-polymer.Sababtoo ah crystallization, hoos u dhaca PP waa mid aad u sarreeya, guud ahaan 1.8-2.5%.
