Qhov sib txawv tseem ceeb ntawm PP thiab PPCP yog tias PP (los yog polypropylene) tuaj yeem yog homopolymer lossis copolymer thaum PPCP (los yog polypropylene copolymer) yog qhov tseem ceeb ntawm cov khoom siv polypropylene.
Lo lus PP sawv cev rau polypropylene. Peb tuaj yeem pom nws hauv ob hom ntawv yooj yim; cov homopolymer thiab cov copolymer, vim qhov sib txawv hauv polymerization lossis synthesis txheej txheem. Txawm hais tias ob daim ntawv muaj ntau qhov sib xws, muaj ntau qhov sib txawv ntawm qhov tsos thiab kev ua tau zoo ib yam. Lo lus PPCP sawv cev rau polypropylene copolymer.
YPP yog dab tsi?
PP lossis polypropylene yog cov thermoplastic polymer. Raws li cov txheej txheem synthesis, nws yog ib qho ntxiv polymer uas ntxiv polymerization ua cov polymer. Nyob ntawd, cov monomers txuas ib leeg ntawm saw-loj hlob polymerization. Cov monomers yog propylene molecules. Nws muaj nyob rau hauv ob daim ntawv yooj yim li homopolymer thiab copolymer. Homopolymer yog siv dav hauv PP. Peb qhia nws li PPH. Nws muaj lub zog siab thaum piv rau qhov hnyav.
Daim duab 01: Ib Daim Ntawv Isotactic ntawm PP
Ntxiv mus, nws yog qhov tawv thiab muaj zog dua li cov copolymer. Nws yog ib qho tseem ceeb nyob rau hauv ntau cov qauv corrosion resistant vim hais tias ntawm cov tshuaj tiv thaiv siab thiab weldability. PP muaj cov ntawv thov hauv khaub ncaws, tshuaj thiab niche. Nws yog qhov tseem ceeb hauv kev tsim cov khaub ncaws tsis-woven. Qhov no polymer yog recyclable thiab. Tsis tas li ntawd, nws yog flammable. Raws li lub tacticity ntawm lub polymer, muaj peb hom raws li nram no.
- Isotactic PP (methyl pawg nyob rau tib sab)
- Syndiotactic PP (cov pab pawg methyl nyob rau hauv ib qho kev hloov pauv)
- Atactic PP (cov pab pawg methyl raug teeb tsa random)
PPCP yog dab tsi?
PPCP lossis polypropylene copolymer yog cov khoom siv thermoplastic polymer. Nws yog ib qho ntawm ob hom PP muaj lwm yam yog homopolymer. Daim ntawv no yog me ntsis softer tab sis muaj kev cuam tshuam lub zog. Ntxiv mus, nws yog qhov tawv thiab ruaj khov dua li homopolymer.
Ntxiv rau, nws muaj qhov ua kom tawg siab thiab tsis kub-kub toughness thiab. Qhov tseem ceeb tshaj, qhov copolymer no tsis nqus dej noo. Nws yog ob qho tib si tshuaj thiab corrosion resistant. Cov ntawv thov ntawm cov copolymer no suav nrog kev tsim cov ntawv txiav tuag, cov tsheb tua hluav taws tua hluav taws, cov khoom siv anodizing, fabricated qhov chaw, thiab lwm yam.
Qhov txawv ntawm PP thiab PPCP yog dab tsi?
PP yog polypropylene. Cov polymer no muaj ob daim ntawv ua homopolymer thiab copolymer raws li kev npaj ntawm cov monomers hauv cov khoom siv polymer. Nws tuaj yeem yog tawv lossis mos. PPCP yog polypropylene copolymer. Nws yog mos thiab ruaj khov dua li homopolymer daim ntawv. Tsis tas li ntawd, qhov tawg tsis kam thiab cuam tshuam lub zog kuj yog qhov sib piv siab. Qhov tseem ceeb tshaj, daim ntawv copolymer no tsis kim nrog kev sib piv rau homopolymer daim ntawv.
Summary – PP vs PPCP
PP yog polypropylene. Muaj ob hom ntawm cov polymer no li PPH thiab PPCP. PPH yog homopolymer daim ntawv ntawm polypropylene thaum PPCP yog daim ntawv copolymer. Qhov txawv ntawm PP thiab PPCP yog tias PP tuaj yeem yog homopolymer lossis copolymer thaum PPCP yog qhov tseem ceeb ntawm copolymer.
