YPolymer Blend vs Composite
Ntau yam kev lag luam tshuaj niaj hnub siv tshuaj ntsuab ntsuab los tiv thaiv ib puag ncig thaum tsim ntau yam tshuaj. Cov tswv yim ntsuab chemistry feem ntau ua tiav los ntawm kev txo cov khoom pov tseg, txo cov khoom siv raw, txo cov khoom siv hluav taws xob tsis muaj zog, txo cov kev xav tau ntawm lub zog tag nrho thiab txo cov kev pheej hmoo, kev phom sij thiab cov nqi. Kev siv cov polymer sib xyaw thiab sib xyaw yog ob lub tswv yim zoo li no siv hauv 'ntsuab' xav tau ntawm ntau qhov kev lag luam. Polymer blends thiab composites yog qhov tseem ceeb heev vim yog cov hauv qab no.
- Lawv tuaj yeem tsim los ntawm cov khoom siv qis qis yam tsis muaj kev txi lawv cov khoom xav tau
- Lawv tuaj yeem siv los npaj cov khoom sib xyaw ua haujlwm siab
- Biodegradability thiab rov siv tau ntawm cov khoom kawg
- Cov khoom lag luam tuaj yeem tsim los siv cov khoom siv khib nyiab
- Lawv tuaj yeem siv rau kev siv dav dua.
Cov ntsiab lus ntawm polymer sib xyaw thiab cov khoom sib xyaw yog qhov sib txawv heev txawm tias lawv feem ntau siv ua ke. Txawm li cas los xij, raws li cov ntaub ntawv muaj, qhov sib txawv tseem ceeb ntawm cov khoom sib xyaw polymer thiab cov khoom sib xyaw yog qhov sib xyaw polymer yog tsim los ntawm kev sib xyaw ntawm ob lossis ntau dua polymers kom tau txais ib theem, qhov sib xyaw yog tsim los ntawm kev sib xyaw ntawm ob lossis ntau lub ntsiab lus ua rau multiphase, multicomponent system, qhov twg txhua lub ntsiab lus qhia txog lawv tus kheej thiab cov khoom. Cov ntsiab lus ntxiv ntawm polymer sib xyaw thiab cov khoom sib xyaw yuav raug tham hauv kab lus no.
YPolymer Blend yog dab tsi?
A polymer blend yog kev sib xyaw ntawm ob lossis ntau dua polymers, uas yog lub cev sib xyaw kom tau txais ib theem. Qhov ntawd txhais tau tias, es tsis tau txais cov khoom ntawm txhua lub polymer cais, ib pawg ntawm cov khoom tau los ntawm kev sib xyaw ob peb polymers. Yog li ntawd, txhua lub polymer yuav tsis qhia nws tus kheej cov khoom uas xav tau. Blends feem ntau tau nyob rau hauv lub xeev molten los yog dissolving nyob rau hauv cov kuab tshuaj. Polymer blends tuaj yeem ua tau ntau yam ntaub ntawv xws li miscible ib theem, miscible cais theem, alloys, sib xws, incompatible, interpenetrating thiab semi-interpenetration polymer network. Polymer blends feem ntau yog cais raws li kev sib xyaw thiab tsis sib xws ntawm cov khoom siv polymer. Cov khoom sib xyaw polymer sib xyaw yog cov sib xyaw sib xyaw ua ke, qhov twg tsis muaj cov theem sib cais, tab sis ib theem. Cov hom kev sib xyaw no muab cov cuab yeej zoo tshaj plaws. Cov khoom sib xyaw tsis sib xws yog cov khoom sib xyaw uas tsim ob theem zoo sib cais tom qab sib tov. Cov hom kev sib xyaw no feem ntau muaj cov khoom siv tsis zoo. Txawm li cas los xij, kev sib xyaw tsis sib xws yog ntau dua li kev sib xyaw ua ke.
Polystyrene yog Homopolymer uas yog cov khoom sib xyaw polymer sib xyaw
YPolymer Composite yog dab tsi?
Polymer composites yog cov tebchaw ua los ntawm ob lossis ntau lub ntsiab lus, uas thaum kawg tsim ib qho kev sib koom ua ke, multicomponent system. Txhua lub ntsiab lus muaj nws tus kheej thiab tswj hwm nws lub cev thiab tshuaj lom neeg txawm tias tom qab muab tso rau hauv ib qho kev sib xyaw. Feem ntau, composite muaj ob yam khoom; polymer thiab non-polymer. Cov khoom siv polymer feem ntau ua raws li cov matrix thaum tsis yog-polymer tivthaiv ua cov muab tub lim (piv txwv li: fiber, flake, hlau, ceramic, thiab lwm yam). Txawm li cas los xij, qee zaum, cov polymers kuj tau siv los ua cov fillers. Yog li ntawd, polymers tuaj yeem ua lub luag haujlwm ua tus muab tub lim lossis cov matrix hauv cov khoom sib xyaw. Ob qho tib si hluavtaws thiab ntuj polymers tuaj yeem siv los ua cov khoom sib xyaw. Cov ntaub ntawv nrog cov khoom zoo tshaj plaws rau kev siv dav dav tuaj yeem npaj los ntawm kev sib xyaw ob qho tib si ntuj thiab hluavtaws polymers. Txawm tias niaj hnub no ntau cov khoom sib xyaw tau tsim nrog kev pab ntawm ntuj polymers vim lawv muab ntau yam zoo xws li biodegradability, tsawg toxicity, thiab muaj. Ntoo thiab pob txha yog ob qho piv txwv zoo ntawm natural composites. Hemicellulose thiab lignin ua raws li cov polymer matrix nyob rau hauv ntoo, thaum lub cellulose fibers ua raws li cov muab tub lim. Fiberglass yog ib qho piv txwv zoo ntawm cov khoom sib xyaw ua ke.
iav nrog lub polymer
Qhov txawv ntawm Polymer Blend thiab Composite yog dab tsi?
Definition of Polymer Blend and Composite:
Polymer Blend: Polymer blend yog kev sib xyaw ntawm ob lossis ntau dua polymers, uas yog lub cev sib xyaw kom tau txais ib theem.
Polymer Composite: Polymer composite yog cov khoom sib xyaw ua los ntawm ob lossis ntau lub ntsiab lus uas ua rau muaj ntau theem, multicomponent system
Yam ntxwv ntawm Polymer Blend thiab Composite:
Kev Sau Npe:
Polymer Blend: Polymer blends muaj ob lossis ntau dua polymers
Polymer Composite: Polymer composites muaj cov khoom siv polymer thiab cov khoom tsis yog polymer
Bonding Nature:
Polymer Blend: Polymer blends feem ntau tsis tsim cov tshuaj muaj zog ntawm cov polymers.
Polymer Composite: Polymer composites muaj tshuaj lom neeg thiab lub cev sib txuas ntawm polymer thiab non-polymer.
