Qhov sib txawv tseem ceeb ntawm cov khoom sib xyaw polymer thiab cov alloys yog cov khoom siv polymer yog tsim los ntawm kev sib xyaw ntawm tsawg kawg yog ob lub polymers, thaum alloys yog tsim los ntawm kev sib xyaw ntawm cov hlau thiab nonmetals.
Polymer blends yog analogous rau hlau alloys. Ob leeg cov ntaub ntawv no muaj tsawg kawg yog ob yam khoom ua ke nrog ib leeg, tsim cov khoom tshiab nrog cov khoom zoo dua qub.
Dab tsi yog Polymer Blends?
Polymer blends yog cov ntaub ntawv uas tsawg kawg yog ob lub polymers sib xyaw ua ke, tsim cov khoom tshiab uas muaj cov khoom sib txawv ntawm lub cev rau cov khoom pib. Peb kuj hu nws lub polymer sib tov. Qhov no yog ib chav kawm ntawm cov tebchaw uas zoo sib xws rau cov hlau alloys.
Muaj peb pawg dav ntawm cov khoom siv polymer sib xyaw ua cov khoom sib xyaw polymer tsis sib xws, sib xyaw ua ke polymer sib xyaw, thiab cov khoom sib xyaw polymer sib xyaw. Immiscible polymer blends yog pab pawg neeg nyiam tshaj plaws ntawm cov khoom siv polymer uas muaj cov khoom siv nrog ob lub polymers thiab ob lub iav hloov pauv kub. Kev sib xyaw polymer sib xyaw yog ib pab pawg ntawm cov khoom siv tsis sib haum xeeb uas qhia cov khoom siv lub cev zoo li macroscopically. Miscible polymer blends yog ib pawg ntawm cov polymers uas muaj ib theem qauv. Peb tuaj yeem soj ntsuam ib lub khob hloov pauv kub hauv cov khoom siv no.
Qee yam piv txwv ntawm miscible polymer blends suav nrog PPO (polyphenylene oxide) - PS (polystyrene) polymer blend, PET (polyethylene terephthalate) - PBT (polybutylene terephthalate) polymer blend, thiab lwm yam.
Yuav ua li cas yog Alloys?
Ib qho hlau yog cov khoom siv hlau uas muaj tsawg kawg yog ib qho hlau nrog rau lwm cov khoom. Cov tshuaj no muaj cov khoom zoo dua qub thaum piv rau cov khoom ntawm txhua lub ntsiab lus uas lawv tau ua los ntawm. Peb tuaj yeem tau txais cov khoom ntawm cov alloys los ntawm kev sib xyaw cov ntsiab lus hauv ntau feem pua. Yog li ntawd, lawv muab cov khoom xav tau los ntawm kev sib xyaw cov hlau sib txawv thiab cov khoom sib txawv. Yuav luag tag nrho cov alloys muaj luster vim muaj cov khoom siv hlau. Alloys kuj tuaj yeem ua hluav taws xob vim muaj cov khoom siv hlau.
Daim duab 01: tooj dag yog hom Alloy
Peb tuaj yeem faib cov alloys hauv ntau txoj kev. Piv txwv li, lawv tuaj yeem ua homogenous lossis heterogeneous. Homogenous alloys muaj cov khoom faib thoob plaws hauv cov khoom sib xws. Heterogeneous alloys, ntawm qhov tod tes, muaj cov khoom faib tawm hauv qhov tsis sib xws.
Tsis tas li ntawd, muaj cov khoom hloov pauv thiab sib cuam tshuam. Cov hlau hloov pauv yog cov hlau alloys tsim los ntawm kev hloov ib lub atom hlau rau lwm cov hlau atom ntawm qhov loj me. Interstitial alloys yog cov hlau alloys tsim los ntawm kev ntxig me me atoms rau hauv qhov ntawm cov hlau lattice.
Qhov txawv ntawm Polymer Blends thiab Alloys yog dab tsi?
Polymer blends yog analogous rau hlau alloys. Polymer blends yog cov ntaub ntawv uas tsawg kawg yog ob lub polymers sib xyaw ua ke, tsim cov khoom tshiab uas muaj cov khoom sib txawv ntawm lub cev rau cov khoom pib. Alloys, ntawm qhov tod tes, yog cov khoom siv hlau uas muaj tsawg kawg ib qho hlau nrog rau lwm cov khoom. Yog li, qhov sib txawv tseem ceeb ntawm cov khoom sib xyaw polymer thiab cov alloys yog cov khoom sib xyaw polymer yog tsim los ntawm kev sib xyaw ntawm tsawg kawg yog ob lub polymers, thaum alloys yog tsim los ntawm kev sib xyaw ntawm cov hlau thiab nonmetals.
Cov lus qhia hauv qab no qhia txog qhov sib txawv ntawm cov khoom sib xyaw polymer thiab cov alloys hauv daim ntawv tabular.
Summary – Polymer Blends vs Alloys
Ob lub polymer blends thiab alloys muaj tsawg kawg yog ob yam sib xyaw ua ke los tsim cov khoom tshiab nrog cov khoom txhim kho. Qhov sib txawv tseem ceeb ntawm polymer blends thiab alloys yog tias cov khoom siv polymer yog tsim los ntawm kev sib xyaw ntawm tsawg kawg yog ob lub polymers, thaum alloys yog tsim los ntawm kev sib xyaw ntawm cov hlau thiab nonmetals.
