Ob cov ntaub ntawv feem ntau siv hauv kev sim: HDPE thiab PP. Peb yuav qhia koj yuav ua li cas xaiv cov hwj tau ua los ntawm ob cov ntaub ntawv los ntawm kev sib piv cov yam ntxwv ntawm ob cov khoom.
1. Lub taub ncauj me me
Reagent fwj tau faib ua kev sib faib dav dav thiab lub qhov ncauj me me. Ward-qhov ncauj fwj muaj qhov ncauj loj dua thiab yog siv los khaws cov khoom qab reagents. Cov raj dej loj yog qhov yooj yim coj mus.
Cov raj me me muaj qhov ncauj me me thiab feem ntau yog siv los khaws cov kua tshuaj uas muaj cov tshuaj reagents. Nws yuav tsum raug sau tseg tias cov kua hauv lub raj mis me me yog yooj yim tsis huv, yog li yuav tsum ceev faj ntxiv thaum noj cov kua.
2. Paus taus kub
Vim yog cov qauv hluav taws xob sib txawv (HDPE tsis muaj sabins, PP muaj cov saw hlau methyls), cov ntaus nkauj txias (brittleness) ntawm ob cov khoom sib txawv. Temp.) Yog qhov sib txawv heev. Lub crazle kub ntawm HDPE yog {0}}} degree ntawm pp yog 0 degree. Yog li ntawd, thaum cov khoom lag luam yuav tsum tau khaws cia ntawm qhov kub tsawg, ntau cov ntawv HDPE cov khoom siv, xws li}}} degree enzyme siv los khaws cov tshuaj ntsuam xyuas kev kuaj mob; Rau cov khoom lag luam uas yuav tsum tau siv nyob rau ntawm qhov kub siab (xws li 121 qhov kub siab thiab kub siab kom tsis muaj menyuam), pp cov ntaub ntawv yuav tsum raug xaiv. Qhov nyiaj ntau tshaj plaws ntawm HDPE cov khoom siv yog feem ntau yog 120 degree, thaum qhov kev ua haujlwm ntau tshaj plaws ntawm pp khoom yog 135 degree.
3. Tshuaj Corrosion Kuj
Nyob rau hauv chav tsev kub, ob qho tib si HDPE thiab PP cov khoom fwj dej tuaj yeem tawm tsam cov kua qaub thiab alkali, tab sis HDPE cov khoom siv tau zoo dua rau cov oxidation tsis kam. Yog li ntawd, thaum khaws cov ntaub ntawv oxidizing, HDPE Cov Khoom Siv Hluav Taws Xob yuav tsum tau xaiv; Low molecular hnyav aliphatic hydrocarbons, muaj ntxhiab hydrocarbons thiab o organceated hydrocarbons, yog li ntawd thaum khaws cov raj mis los ntawm HDPE yuav tsum tau siv.
4. Xim Transparency
Vim hais tias tus qauv molecular, PP yog ntau pob tshab rau kev saib xyuas lub xeev cov khoom siv hauv lub raj mis (pp cov khoom siv me ntsis rau HDPE cov khoom).
Cov xim ntawm lub raj mis reagent feem ntau yog pob tshab lossis xim av. Cov tshuaj pleev xim av yog siv los khaws tshuaj lom neeg cov tshuaj lom neeg uas tau yooj yim, cov nyiaj nitrate, thiab lwm yam pob zeb.
5. Kom muaj kev tsis huv
Qhov sib txawv ntawm HDPE thiab PP hauv cov qauv tsis muaj menyuam yog tias PP tuaj yeem ua kom tsis muaj qhov kub thiab txias, thaum lub sij hawm HDPE. Ob qho tib si tuaj yeem ua kom tsis muaj menyuam los ntawm eo, irriation (hluav taws xob-resistant pp yog qhov yuav tsum tau, txwv tsis pub nws yuav tig mus rau kom tsis muaj plaub.
6. Roj (N₂, O₂, CO₂) Cov Khoom Siv Teeb Meem
HDPE cov khoom siv yog zoo dua rau pp txhua yam. Cov khoom siv ntawm n₂ thiab o₂ tsis txawv ntau, tab sis hais txog COG qhuav teeb meem, HDPE cov khoom siv yog qhov zoo dua rau cov khoom siv. Yog li ntawd, yog tias cov khoom lag luam rhiab thiab cov pa roj carbon dioxide, nws raug nquahu kom xaiv lub raj tshuaj reagent ua ntawm cov khoom siv HDPE