Tam sim no, tib neeg muaj kev txhawj xeeb heev txog lawv kev noj qab haus huv. Qee tus neeg feem ntau pom cov xov xwm qhia tias qee cov neeg noj tag lub sijhawm ntev muaj teeb meem kev noj qab haus huv. Yog li no cov neeg muaj kev txhawj xeeb txog seb cov hnab yas yog cov hnab yas rau cov khoom noj thiab seb lawv puas tsim kev puas tsuaj rau lawv kev noj qab haus huv. Nov yog ob peb txoj hauv kev yuav ua li cas paub qhov txawv ntawm cov hnab yas rau cov khoom noj thiab hnab yas zoo tib yam.
Nws yog qhov yooj yim siv lub hnab yas rau cov khoom noj thiab lwm yam. Tam sim no, muaj ob hom hnab yas ntawm kev ua lag luam xws li polyethylene, thiab tuaj yeem siv rau cov khoom noj ntim khoom, thiab tuaj yeem siv tau rau kev ntim khoom dav dav.
Hnab rau ntim khoom nojFeem ntau paub peb yog cov hnab ntim khoom noj-qib, rau uas muaj kev nruj dua thiab cov qauv siab rau lawv cov ntaub ntawv. Peb feem ntau yog siv cov khoom noj khoom noj-cov khoom noj yog feem ntau tsis muaj tshuaj lom, ib puag ncig tus phooj ywg zaj duab xis raws li cov khoom tseem ceeb. Thiab cov khoom sib txawv raw muaj cov yam ntxwv sib txawv, yog li peb yuav tsum xaiv raws li cov yam ntxwv ntawm cov zaub mov nws tus kheej thaum lub sijhawm ua khoom lag luam.
Dab tsi ntawm lub hnab yas yog cov zaub mov qib?
PE yog polyethylene, thiab PE yas hnab yas yog cov khoom noj qib. PE yog hom ntawm thermoplastic resin ua los ntawm ethylene los ntawm polymerization. Nws yog tsis muaj ntxhiab thiab tsis muaj tshuaj lom, thiab muaj qhov kub tsis kam zoo (qhov kev ua haujlwm qis tshaj yog -100 ~ 70 ℃). Nws muaj cov tshuaj ruaj khov zoo, acid thiab alkali tsis kam, thiab yog insoluble hauv cov kuab tshuaj uas muaj qhov kub thiab txias. Nws muaj rwb thaiv hluav taws xob zoo heev thiab dej nqus dej tsawg. Cov khoom noj-qib cov hnab yas feem ntau muab faib ua cov hnab ntim khoom noj zoo nkauj, ntim khoom noj ntim cov hnab ntim khoom noj, ntim khoom noj Ntim hauv hnab ntim khoom noj, ntim khoom noj ntim cov hnab ntim khoom noj thiab lwm yam khoom noj. Cov khoom noj muaj cov khoom noj muaj xws li PE (Polyethylene), txhuas ntawv ci), nylon thiab cov khoom siv. Cov khoom noj-qib cov hnab yas muaj qee cov yam ntxwv muaj qee yam hauv kev txiav txim kom ntseeg tau tias zaub mov tshiab thiab pub dawb los ntawm cov kab mob thiab muaj kab mob rot. Ib qho yog kom tiav cov kuab tshuaj organic, roj, roj, dej vapor thiab lwm yam; Lwm tus yog kom muaj kev sib tw zoo heev, noo noo tsis kam, cua sov kuj, lub teeb kev zam thiab rwb thaiv tsev, thiab muaj tsos zoo nkauj; Qhov thib peb yog cov tsim yooj yim thiab tus nqi qis; Lub plaub yog kom muaj lub zog zoo, ntim hnab ntim khoom muaj zog muaj lub zog muaj zog rau ib chav phaus phaus, muaj kev cuam tshuam tsis kam thiab yooj yim hloov kho.
Cov Khoom Noj Khoom Haus Cov Hnab Yas thiab Hnab Ntim Hnab Ua Si
Cov hnab yas pom kev nyab xeeb yog feem ntau yog cov yas dawb, tab sis cov xim tox, tab sis cov xim tox, tab sis daj daj, zoo li nplaum.
Cov txheej txheem raus dej raus dej, koj tuaj yeem tso lub hnab yas tso rau hauv dej, tos ib pliag kom cia sunk hauv qab dej yog cov kua yas muaj kev nyab xeeb.
Txoj kev tua hluav taws. Lub hnab yas nyab kom nyab xeeb yog qhov yooj yim hlawv. Thaum hlawv, nplaim taws xiav zoo li roj tswm ciab, muaj qhov tsis hnov tsw ntawm paraffin, tab sis cov pa luam yeeb tsawg. Thiab cov hnab yas toxic tsis muaj nplaim taws, cov nplaim taws yog daj, hlawv yuav rub tawm cov kab muag, yuav muaj kev npau taws zoo li cov kua qaub hydrochloric.
Hnov tus qauv. Feem ntau hais lus yas, cov hnab yas nyab xeeb tsis muaj qhov txawv txawv, ntawm qhov tsis sib xws, muaj kev ntxhiab, uas yuav yog vim kev siv lwm yam kev sib ntxiv lossis tsis zoo.
Lub Sijhawm Post: Oct-21-2022