Polyethylene / PP hlua siv nyob rau hauv lub neej txhua hnub

Polyethylene muaj tshuaj lom neeg ruaj khov thiab tuaj yeem tiv taus dilute nitric acid, dilute sulfuric acid thiab txhua qhov kev xav ntawm hydrochloric acid, hydrofluoric acid, phosphoric acid, formic acid, acetic acid, ammonia, amine, hydrogen peroxide, sodium hydroxide, potassium hydroxide thiab lwm yam kev daws teeb meem ntawm chav tsev kub.Tab sis nws tsis resistant rau muaj zog oxidation corrosion, xws li fuming sulfuric acid, concentrated nitric acid, chromic acid thiab sulfuric acid sib tov. Nyob rau hauv chav tsev kub, cov kuab tshuaj yuav tsim qeeb yaig ntawm polyethylene, thiab ntawm 90 ~ 100 ℃, Cov concentrated sulfuric acid thiab concentrated nitric acid yuav sai sai erode polyethylene, ua rau nws puas los yog decomposed.Polyethylene yog ib qho yooj yim mus yees duab oxidation, thermal oxidation, ozone decomposition, yooj yim degrade nyob rau hauv qhov kev txiav txim ntawm ultraviolet lub teeb, carbon dub muaj ib tug zoo heev lub teeb shielding nyhuv. polyethylene.Reactions xws li crosslinking, saw breaking thiab tsim ntawm unsaturated pawg yuav tshwm sim tom qab hluav taws xob.

Polyethylene hlua belongs rau alkane inert polymer thiab muaj tshuaj zoo stability.Thaum chav kub, acid, alkali, ntsev aqueous tov corrosion kuj, tab sis tsis muaj zog oxidant xws li fuming sulfuric acid, concentrated nitric acid thiab chromic acid.Polyethylene insoluble nyob rau hauv cov kuab tshuaj hauv qab no. 60 ℃, tab sis nrog aliphatic hydrocarbon, aromatic hydrocarbon, halogenated hydrocarbon thiab lwm yam kev sib cuag mus ntev yuav o los yog tawg.

Polyethylene hlua muaj cov khoom siv ntawm polyethylene, polyethylene rau ib puag ncig kev ntxhov siab (tshuaj lom neeg thiab kev ua haujlwm) yog qhov rhiab heev, kev laus thaum tshav kub kub yog qhov phem dua li cov qauv tshuaj polymer thiab ua cov strip.Polyethylene tuaj yeem ua tiav los ntawm cov txheej txheem thermoplastic molding.Nws yog dav siv. nyob rau hauv kev tsim cov zaj duab xis, ntim cov ntaub ntawv, ntim, kav, monofilament, xaim thiab cable, txhua hnub yuav tsum tau, thiab yuav siv tau raws li high zaus rwb thaiv tsev ntaub ntawv rau TV, radar, thiab lwm yam. Nrog rau kev loj hlob ntawm petrochemical kev lag luam, ntau lawm ntawm polyethylene tau tsim sai heev, suav txog li 1/4 ntawm tag nrho cov khoom ntawm plastics.In 1983, lub ntiaj teb tag nrho cov peev txheej ntawm polyethylene yog 24.65 mT, thiab lub peev xwm ntawm cov nroj tsuag nyob rau hauv kev tsim kho yog 3.16 mT.Qhov tseeb txheeb cais tau tshwm sim nyob rau hauv 2011, lub ntiaj teb no ntau lawm muaj peev xwm mus txog 96 MT, txoj kev loj hlob qauv ntawm polyethylene ntau lawm qhia tau hais tias ntau lawm thiab noj yog maj mam hloov mus rau Asia, thiab Tuam Tshoj yog ua tus tseem ceeb tshaj plaws cov neeg siv khoom lag luam.


Lub sij hawm xa tuaj: Plaub Hlis-09-2021