Lub luag haujlwm ntawm Sodium Cyanide hauv Textile Printing thiab Dyeing

Introduction

Sodium cyanide (NaCN), yog ib yam tshuaj lom neeg uas muaj qhov hnyav molecular ntawm 49.007 g/mol, yog ib yam khoom dawb crystalline. Nws muaj tshuaj lom heev thiab yuav tsum tau ceev faj heev. Txawm hais tias nws muaj tshuaj lom, sodium cyanide ua lub luag haujlwm tseem ceeb hauv kev lag luam luam ntawv thiab zas xim . Tsab xov xwm no yuav tshawb nrhiav cov haujlwm no kom meej, nrog rau kev xav txog nws siv.

Muaj nuj nqi hauv Textile Printing thiab Dyeing

1. Mordant hauv Dyeing txheej txheem

Hauv kev zas xim ntaub, ib qho mordant yog ib yam khoom siv los pab cov xim kom lo rau ntawm daim ntaub. Sodium cyanide tuaj yeem ua haujlwm ua ib qho mordant hauv qee cov txheej txheem zas xim. Nws tsim cov complexes nrog cov hlau ions uas muaj nyob rau hauv qee cov xim thiab cov ntaub fibers. Piv txwv li, nyob rau hauv cov ntaub ntawv ntawm cov xim ntuj uas muaj hlau - muaj chromophores (ib feem ntawm lub molecule lub luag haujlwm rau xim), Sodium Cyanide tuaj yeem txhim kho qhov kev sib txuas ntawm cov xim thiab cov fiber. Qhov no yog vim tias cov cyanide ion (CN⁻) muaj kev sib raug zoo rau cov hlau ions. Nws tuaj yeem tsim cov kev sib koom tes, uas ua rau qhov sib txawv ntawm cov xim thiab cov ntaub, ua rau cov xim sai dua thiab ruaj khov.

2. Synthesis ntawm Textile Fibers

Yuav luag txhua cov fibers hluavtaws siv hauv kev lag luam textile vam khom Sodium cyanide thaum lawv cov txheej txheem ntau lawm. Piv txwv li, hauv kev tsim cov nylon, ib qho ntawm cov fibers hluavtaws feem ntau, sodium cyanide yog siv hauv kev tsim cov adiponitrile, uas yog qhov tseem ceeb nruab nrab. Txoj kev tshuaj tiv thaiv cuam tshuam nrog kev siv sodium cyanide los qhia cov pab pawg nitrile. Hauv cov ntaub ntawv ntawm polyester fibers, txawm hais tias cov txheej txheem nyuaj dua thiab feem ntau cuam tshuam nrog cov tshuaj sib txawv piv rau nylon, sodium cyanide tseem tuaj yeem koom nrog hauv kev tsim cov khoom pib lossis hauv qee cov txheej txheem catalytic. Cov fibers hluavtaws no tau siv dav hauv kev lag luam textile vim lawv cov khoom xav tau xws li lub zog, kev ruaj khov, thiab kev tiv thaiv wrinkle, thiab sodium cyanide ua lub luag haujlwm tseem ceeb hauv lawv cov khoom.

3. Dye Production

Sodium cyanide yog siv los tsim ntau yam dyes siv hauv textile printing thiab dyeing. Nws ua hauj lwm raws li ib tug raw khoom nyob rau hauv lub synthesis ntawm tej hom dyes, tshwj xeeb tshaj yog cov uas complex chemical structures. Piv txwv li, nyob rau hauv zus tau tej cov reactive dyes, uas yog dav siv rau dyeing cellulosic fibers zoo li paj rwb, sodium cyanide tej zaum yuav koom nyob rau hauv lub multi-step synthesis txheej txheem. Reactive dyes tsim covalent bonds nrog cov fiber ntau molecules thaum lub sij hawm dyeing txheej txheem, muab colourfastness zoo heev. Cov cyanide - muaj cov khoom sib txuas tuaj yeem siv los tsim cov pawg reactive nyob rau hauv cov xim molecule uas yog lub luag haujlwm rau qhov kev tsim cov ntawv cog lus no.

Kev nyab xeeb thiab kev xav txog ib puag ncig

Muab nws cov tshuaj lom neeg heev, kev siv sodium cyanide hauv kev lag luam textile yuav tsum tau tswj nruj me ntsis. Kev nqus pa, kev sib cuag ntawm daim tawv nqaij, lossis kev noj cov tshuaj sodium cyanide me me tuaj yeem ua rau tib neeg tuag taus. Nws tuaj yeem ua rau cov hlwb tsis tuaj yeem siv cov pa oxygen, ua rau cov cell tuag sai thiab thaum kawg, yog tias cov tshuaj txaus nqus tau, kev tuag ntawm tus neeg.

Los ntawm ib puag ncig kev xav, kev pov tseg kom zoo ntawm cov khib nyiab uas muaj sodium cyanide yog qhov tseem ceeb. Yog tias tso rau hauv dej hauv lub cev, sodium cyanide tuaj yeem hydrolyze los tsim cov roj hydrogen cyanide, uas tseem muaj tshuaj lom thiab tuaj yeem ua rau muaj kev hem thawj rau cov dej hauv dej thiab cov ecosystem ib puag ncig. Hauv ntau lub tebchaws, muaj cov kev cai nruj thiab cov kev cai tswj hwm kev khaws cia, tuav, thiab pov tseg ntawm sodium cyanide hauv chaw tsim khoom, suav nrog textile printing thiab dyeing chaw. Cov kev cai no tsom kom txo qis kev pheej hmoo ntawm kev raug xwm txheej thiab kev kis kab mob ib puag ncig.

xaus

Sodium cyanide, txawm hais tias nws paub zoo txog kev toxicity, plays lub luag haujlwm tseem ceeb hauv textile printing thiab dyeing, los ntawm kev yooj yim rau cov dyeing - ntaub khi raws li ib tug mordant los ua ib qho tseem ceeb nyob rau hauv lub synthesis ntawm textile fibers thiab dyes. Txawm li cas los xij, vim nws qhov hnyav hnyav thiab muaj peev xwm ua rau muaj kev phom sij ib puag ncig, nws siv yuav tsum tau ua tib zoo saib xyuas thiab tswj. Raws li kev lag luam textile txuas ntxiv mus ntxiv, kev siv zog kuj tseem raug tsim los tsim cov txheej txheem thiab tshuaj lom neeg uas tuaj yeem ua tiav cov txiaj ntsig zoo ib yam yam tsis muaj kev pheej hmoo ntawm kev siv sodium cyanide.