Kev tsom xam ntawm cov txheej txheem ntsuas ntawm cov polymers rau cov nplaum tshwj xeeb

Hauv cov teb niaj hnub, cov nplaum tshwj xeeb tau siv dav hauv cov khoom siv hluav taws xob, cov tsheb, aerospace thiab lwm yam kev lag luam vim lawv cov kev sib raug zoo thiab huab cua tsis kam. Raws li cov tseem ceeb ntawm cov nplaum tshwj xeeb, qhov zoo ntawm cov polymers ncaj qha cuam tshuam rau kev ua haujlwm ntawm cov khoom kawg. Yog li ntawd, nws yog qhov tseem ceeb los tsim kev tshawb fawb thiab kev sim nruj. Kab lus no yuav qhia cov txheej txheem kev sim siab rau cov nplaum tshwj xeeb kom pab cov kws kho cov khoom lag luam zoo dua.

Qauv sau thiab pretreatment

Thawj kauj ruam ntawm kev xeem yog cov qauv sau. Txhawm rau kom ntseeg tau ntawm cov ntaub ntawv, cov qauv yuav tsum tau xaiv los ntawm cov kab sib txawv thiab cov ntaub ntawv sib txawv, thiab cov xwm txheej ib puag ncig yuav tsum sau tseg. Tom qab kuaj, cov hnoos qeev yuav tsum tau ua kom zoo, suav nrog ziab, tsoo, kom tshem tawm cov cawv ntawm cov khoom noo thiab kev cuam tshuam ntawm cov ntawv xeem.

Kev Ntsuas Cov Khoom Vaj Tse

Physical properties are the basic indicators for evaluating polymer quality, mainly including density, melt index, viscosity, etc. Density testing usually uses the pycnometer method or buoyancy method to ensure that the molecular structure of the polymer meets the standard. Lub Ncauj Lus Ntsuas Ntsuas Cov Tshuaj Ntsuam Xyuas Kev Ntsuas Lub cev ntawm cov neeg muaj qhov kub thiab kub thiab txias kom txiav txim siab nws cov kev ua tau zoo. Viscire Testing siv cov vis viscometer lossis ib lub captary visliveter los ntsuas cov neeg uas muaj cov yam ntxwv ntawm lub polymer.

Tshuaj Muaj Kev Ntsuam Xyuas Kev Ntsuam Xyuas

Tshuaj lom neeg tshuaj ntsuam xyuas lub hom phiaj los txiav txim siab cov qauv molecular, cov pab pawg ua haujlwm thiab cov ncauj lus hauv polymer. Cov hau kev feem ntau suav nrog infrared spectroscopy (ftir), nuclear sib nqus kev rov qab (Nuclear Sib Tw Revelonography (Nuclear Sib Nqus Revelonography-Pawg Spectrometry (GC-MS). FTIR tuaj yeem txheeb xyuas cov pab pawg ua haujlwm ntawm cov polymer, NMR tuaj yeem txheeb xyuas cov molecular saw tuaj yeem tshawb xyuas cov seem ntawm cov neeg lossis cov khoom ntxiv los xyuas kom meej cov khoom siv.

Thermal Stability thiab Huab cua Kuj Xeem

Cov nplaum tshwj xeeb feem ntau yuav tsum tau siv nyob rau hauv cov kub lossis siab ib puag ncig, yog li thermal stability thiab huab cua kuj kev ntsuas yog qhov tseem ceeb. Thermogravetric tsom xam (TGA) tuaj yeem txiav txim siab cov thermal decomposition kub ntawm cov polymer thiab ntsuas nws ruaj khov ntawm qhov kub. UV Kev kuaj mob me thiab ntub dej kev ntsuas simuling simulate siv ib puag ncig los xyuas cov kev ua haujlwm tiv thaiv kev ua haujlwm ntawm cov polymer.

Los ntawm cov txheej txheem ntsuas saum toj no, kev lag luam tuaj yeem nkag siab qhov zoo ntawm cov polymers thiab ua kom lub ruaj khov ntawm cov nplaum tshwj xeeb. Yav tom ntej, nrog kev nce qib nruam ntawm kev sim thev naus laus zis, kev kuaj tshiab Polymer yuav muaj peev xwm ntau dua thiab muab tau kev txhawb nqa rau kev txhim kho kev lag luam.