Nyob rau hauv lub realm ntawm plastics, ib tug meej kev sib txawv tshwm sim ntawm general-purpose thiab engineering plastics. Thaum ob qho tib si ua haujlwm tseem ceeb, lawv sib txawv hauv lawv cov khoom, kev siv, thiab kev ua haujlwm tag nrho. Kev nkag siab txog cov kev sib txawv no yog qhov tseem ceeb rau kev xaiv cov khoom yas tsim nyog rau cov kev cai tshwj xeeb.
General-Purpose Plastics: Cov Ua Haujlwm Ntau Yam
General-purpose plastics, tseem hu ua cov khoom siv plastics, yog cov yam ntxwv ntawm lawv cov khoom ntim siab, kev siv dav dav, kev ua haujlwm yooj yim, thiab kev siv nyiaj ntau. Lawv tsim cov pob txha ntawm kev lag luam plastics, ua rau cov khoom siv niaj hnub thiab cov ntawv thov tsis xav tau.
Common Yam ntxwv:
- High Production Volume:General-purpose plastics account rau ntau tshaj 90% ntawm tag nrho cov khoom yas.
- Broad Application Spectrum:Lawv muaj nyob rau hauv cov khoom ntim, cov khoom siv pov tseg, cov khoom ua si, thiab cov khoom siv hauv tsev.
- Yooj yim ntawm kev ua:Lawv zoo heev moldability thiab machinability pab kom raug nqi tsim khoom.
- Nqis peev:General-purpose plastics yog tus pheej yig, ua rau lawv txaus nyiam rau ntau lawm.
Piv txwv:
- Polyethylene (PE):Dav siv rau lub hnab, zaj duab xis, lub raj mis, thiab cov kav dej.
- Polypropylene (PP):Pom nyob rau hauv ntim, textiles, thiab automotive Cheebtsam.
- Polyvinyl Chloride (PVC):Ua haujlwm hauv cov kav dej, fittings, thiab cov khoom siv hauv tsev.
- Polystyrene (PS):Siv rau kev ntim khoom, cov khoom ua si, thiab cov khoom siv pov tseg.
- Acrylonitrile Butadiene Styrene (ABS):Feem ntau hauv cov khoom siv, khoom siv hluav taws xob, thiab lub nra.
Engineering Plastics: Lub Heavyweights ntawm Kev Lag Luam
Engineering plastics, tseem hu ua kev ua tau zoo plastics, yog tsim los ua kom tau raws li qhov xav tau ntawm cov ntawv thov kev lag luam. Lawv ua tau zoo nyob rau hauv lub zog, cuam tshuam tsis kam, kub kam rau ua, hardness, thiab tsis kam mus rau kev laus, ua rau lawv zoo tagnrho rau cov yam ntxwv ntawm cov khoom thiab cov kev sib tw ib puag ncig.
Cov yam ntxwv tseem ceeb:
- Superior Mechanical Properties:Engineering plastics tiv taus cov neeg kho tshuab siab thiab qhov chaw hnyav.
- Exceptional Thermal Stability:Lawv khaws lawv cov khoom ntawm qhov kub thiab txias.
- Chemical Resistance:Engineering plastics tuaj yeem tiv taus ntau yam tshuaj thiab cov kuab tshuaj.
- Dimensional Stability:Lawv tuav lawv cov duab thiab qhov ntev nyob rau hauv ntau yam xwm txheej.
Daim ntawv thov:
- Automotive:Engineering plastics tau siv dav hauv tsheb qhov chaw vim lawv qhov hnyav thiab ruaj khov.
- Hluav taws xob thiab Electronics:Lawv cov khoom hluav taws xob rwb thaiv tsev ua rau lawv haum rau cov khoom siv hluav taws xob thiab cov khoom sib txuas.
- Cov khoom siv:Engineering plastics pom dav siv hauv cov khoom siv vim lawv cov cua sov ua haujlwm thiab cov tshuaj lom neeg muaj zog.
- Cov cuab yeej kho mob:Lawv biocompatibility thiab sterilization tsis kam ua rau lawv zoo tagnrho rau kev kho mob cog thiab cov cuab yeej phais.
- Aerospace:Engineering plastics tau ua haujlwm hauv kev siv aerospace vim lawv lub zog-rau-qhov hnyav piv thiab qaug zog.
Piv txwv:
- Polycarbonate (PC):Renowned rau nws pob tshab, cuam tshuam tsis kam, thiab qhov ntev stability.
- Polyamide (PA):Cov yam ntxwv ntawm lub zog siab, nruj, thiab hnav tsis kam.
- Polyethylene Terephthalate (PET):Dav siv rau nws cov tshuaj tiv thaiv zoo heev, qhov ruaj khov, thiab cov khoom noj khoom haus qib.
- Polyoxymethylene (POM):Paub txog nws qhov tshwj xeeb qhov ruaj khov, tsis muaj kev sib txhuam, thiab siab tawv.
Xaiv cov yas zoo rau txoj haujlwm
Xaiv cov khoom siv yas uas tsim nyog yog nyob ntawm daim ntawv thov tshwj xeeb. General-purpose plastics yog zoo tagnrho rau cov nqi-rhiab, tsis-xav tau daim ntaub ntawv, thaum engineering plastics yog zoo dua haum rau kev nyuaj ib puag ncig thiab xav tau kev ua tau zoo.
Factors yuav xav txog:
- Mechanical Requirements:Lub zog, nruj, cuam tshuam tsis kam, thiab qaug zog ua haujlwm.
- Thermal Performance:Thaum tshav kub kub tsis kam, melting point, iav hloov kub, thiab thermal conductivity.
- Chemical Resistance:Kev raug tshuaj lom neeg, cov kuab tshuaj, thiab ib puag ncig hnyav.
- Txheej Txheem Txheej Txheem:Moldability, machinability, thiab weldability.
- Nqi thiab Muaj:Tus nqi ntawm cov khoom siv, cov nqi tsim khoom, thiab muaj.
Xaus
General-purpose thiab engineering plastics txhua tus ua lub luag haujlwm tseem ceeb hauv ntau lub ntiaj teb ntawm kev siv yas. Nkag siab txog lawv cov khoom tshwj xeeb thiab tsim nyog rau cov kev xav tau tshwj xeeb yog qhov tseem ceeb rau kev txiav txim siab xaiv cov ntaub ntawv paub meej. Raws li kev siv thev naus laus zis thiab cov khoom siv tshawb fawb tau hloov zuj zus, ob hom yas yuav txuas ntxiv tsav kev tsim kho tshiab thiab ua rau yav tom ntej ntawm ntau yam kev lag luam.
Los ntawm kev sib txuas cov ntsiab lus tseem ceeb thoob plaws hauv blog ncej thiab siv cov qauv tsim, cov ntsiab lus no tau ua kom zoo rau kev tshawb nrhiav cav pom. Kev suav nrog cov duab cuam tshuam thiab cov ncauj lus me me ntxiv txhim kho kev nyeem ntawv thiab kev koom tes.
Post lub sij hawm: 06-06-24