Niaj hnub no hauv kev lag luam zaub mov,cov hnab ntim khoom nojyog ib feem tseem ceeb.Qhov zoo ntawmcov hnab ntim khoom nojyuav cuam tshuam ncaj qha rau cov khoom lag luam zoo, yog li cov khoom ntim khoom ntim khoom zoo li cas?Cia peb piav luv luv.
1. Cov tsos mob yuav tsum tsis txhob muaj qhov tsis xws luag xws li npuas, dej cim, perforations, thiab lwm yam, thiab qhov dav, qhov ntev, thiab thickness sib txawv ntawm cov specifications yuav tsum nyob rau hauv lub deviation ntau yam.
2. Lub cev muaj zog, nrog rau lub zog tensile thiab elongation ntawm kev tawg, qhia txog lub peev xwm ntawm cov khoom kom tiv taus kev ncab thaum siv.Yog tias cov khoom no tsis tsim nyog, lub hnab ntim khoom noj (zaj duab xis) tuaj yeem tawg thaum siv.kev puas tsuaj.
3. Kev ua haujlwm huv huv, suav nrog cov evaporation residues (acetic acid, ethanol, n-hexane), poov tshuaj permanganate noj, hnyav hlau, thiab kev kuaj decolorization.Cov evaporation residues qhia txog qhov muaj peev xwm ntawm cov khoom seem thiab cov hlau hnyav hnyav los ntawm lub hnab ntim khoom noj thaum lawv ntsib vinegar, cawv, roj thiab lwm yam kua dej thaum siv.Cov khoom seem thiab cov hlau hnyav yuav muaj kev cuam tshuam tsis zoo rau tib neeg kev noj qab haus huv.Tsis tas li ntawd, residues tseem yuav cuam tshuam ncaj qha rau cov xim thiab aroma ntawm zaub mov., saj thiab lwm yam zaub mov zoo.
4. Kev ua haujlwm degradation, raws li ntau hom khoom degradation, tuaj yeem muab faib ua hom photodegradable, hom biodegradable, thiab hom degradation ib puag ncig.Qhov kev ua tau zoo degradation qhia txog lub peev xwm ntawm cov khoom uas tau txais los ntawm ib puag ncig tom qab siv thiab muab pov tseg.Yog tias qhov kev ua tau zoo degradation zoo, lub hnab (zaj duab xis) yuav tawg, sib txawv thiab degrade los ntawm nws tus kheej nyob rau hauv kev sib xyaw ua ke ntawm lub teeb thiab cov kab mob, thiab nws thiaj li dhau los ua cov khib nyiab, uas yog ib puag ncig ntuj.Txais;yog tias qhov degradability tsis zoo, nws yuav tsis raug lees txais los ntawm ib puag ncig, yog li tsim "dawb paug".
Cov khoom soj ntsuam ntawm cov khoom ntim khoom noj khoom haus feem ntau suav nrog:
Cov tsos mob yuav tsum du, tsis muaj khawb, kub hnyiab, npuas thiab wrinkles, thiab lub tshav kub foob yuav tsum du thiab tsis muaj cuav seals.Cov zaj duab xis yuav tsum tsis txhob muaj kab nrib pleb, pores thiab cov txheej txheem sib cais.Tsis muaj impurities, cov khoom txawv teb chaws thiab cov roj stains thiab lwm yam pa phem.Cov kua dej ntub dej hauv lub hnab yuav tsum tsis muaj ntxhiab tsw, tsw ntxhiab, turbidity thiab discoloration.
Post lub sij hawm: Oct-09-2022