Video: Ib qho piv txwv ntawm ntxiv polymer yog dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Polyolefins. Ntau yam Ntxiv cov polymers yog tsim los ntawm unsaturated monomers (feem ntau muaj C = C ob daim ntawv cog lus). Piv txwv Ntawm cov polyolefins yog polyethenes, polypropylene, PVC, Teflon, Buna rubbers, polyacrylates, polystyrene, thiab PCTFE.
Yog li ntawd, leej twg ntawm cov hauv qab no yog cov polymers ntxiv?
Ntxiv cov polymers muaj xws li polystyrene, polyethylene, polyacrylates, thiab methacrylates. Condensation polymers yog tsim los ntawm cov tshuaj tiv thaiv ntawm bi- los yog polyfunctional molecules, nrog tshem tawm ntawm ib co me me molecule (xws li dej) raws li ib tug by-product.
Qhov thib ob, dab tsi ntxiv thiab condensation polymers? Ntxiv polymerization yog cov txheej txheem rov ua dua ntxiv ntawm monomers uas muaj ob lossis peb daim ntawv cog lus rau daim ntawv polymers . A polymerization ntawm condensation yog ib txoj kev uas yuav rov ua dua condensation Cov tshuaj tiv thaiv ntawm ob qhov sib txawv bi-functional lossis tri-functional monomers.
Ib yam li ntawd, koj yuav nug, uas tsis yog ib qho piv txwv ntawm ntxiv polymer?
Nylon yog tsis yog ib qho piv txwv ntawm ntxiv polymer.
Yuav ua li cas ntxiv polymerization?
Polymerization yog cov tshuaj tiv thaiv ntawm monomer molecules los tsim cov saw ntev polymer molecules. Ntxiv polymerization yog hom polymerization cov tshuaj tiv thaiv ntawd tshwm sim thaum koj coj cov monomers thiab tsuas ntxiv lawv ua ke. Qhov no yog cov ntaub ntawv nrog cov polymers xws li poly (ethene) thiab poly (propene).
Pom zoo:
Dab tsi yog qhov piv txwv piv txwv hauv kev txheeb cais?
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