2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Invista thiab Butachimie tsim adiponitrile los ntawm reacting butadiene nrog hydrogen cyanide, txheej txheem tsim los ntawm Invista's forerunner, DuPont. Ascend siv Monsanto-invented electrochemical txheej txheem uas pib nrog acrylonitrile.
Adiponitrile ua li cas?
Adiponitrile yog cov tshuaj loj loj nruab nrab siv hauv kev tsim cov Nylon 6, 6. Nws yog tsim los ntawm ob txoj kev: thermal hydrocyanation ntawm butadiene thiab electrochemical hydrodimerization ntawm acrylonitrile.
Nylon 6/6 ua haujlwm li cas?
Nylon 6, 6 yog tsim los ntawm theem-loj polymerization ntawm Adipic Acid thiab Hexamethylene diamine. Cov tshuaj tiv thaiv no tshwm sim los ntawm kev tshem tawm cov dej los ntawm cov ntsev nylon uas muaj 1: 1 piv ntawm Adipic Acid thiab Hexamethylene diamine. Lub polymerization tuaj yeem tshwm sim tsis tu ncua lossis hauv pawg [1].
Leej twg tsim nylon 66?
Remington Nylon 66 yog ib qho. 22 rab phom tsim los ntawm Remington Arms los ntawm 1959 txog 1989. Cov phom phom thiab cov khoom txais tau ua los ntawm Dupont Zytel nylon resin.
Nylon 66 ua li cas?
Nylon 66 yog tsim los ntawm cov tshuaj tiv thaiv condensation ntawm hexamethylenediamine thiab adipic acid. Ob tug comonomers yog thawj reacted los tsim ib tug ntsev.
Pom zoo:
Vim li cas kev xa khoom tseem ceeb heev hauv kev xa khoom?
Kev xa khoom xa mus yog hais txog kev xa khoom ntawm cov khoom / thawv rau qhov chaw nruab nrab ua ntej raug coj mus rau qhov chaw kawg (Soamiely li al. 2004) thiab ua lub luag haujlwm tseem ceeb vim muaj kev txwv tsis pub muaj kev txwv hauv cov chaw nres nkoj me me hauv hiav txwv.
Vim li cas kev npaj thiab kev npaj yuav tsum tsim nyog hauv kev coj ua?
Txawm hais tias raug cai lossis tsis raug cai, nkag siab lossis tsim qauv, sau tseg lossis tsis muaj ntaub ntawv, npaj rau kev thov pab ua kom koj ko taw zoo tshaj plaws rau pem hauv ntej raws li BA thiab pab txhawb kev sib raug zoo nrog cov neeg koom nrog los ntawm kev qhia koj kom muaj nuj nqis rau lub sijhawm lawv siv nrog koj Thaum koj tab tom ua kev thov.
Dab tsi yog qhov kev tsim khoom tsim kho dua tshiab?
Ib qho kev tsim khoom tsim kho dua tshiab yog ib qho tsim los ntawm qhov pib rau kev hloov pauv sai hauv nws cov qauv, nrog rau nws cov khoom siv kho vajtse thiab software, txhawm rau kho sai sai nws cov peev txheej tsim khoom thiab kev ua haujlwm nyob rau hauv ib feem tsev neeg hauv kev teb rau kev lag luam tam sim ntawd.
Cov khoom tsim nyog thiab khoom kim heev cuam tshuam li cas rau elasticity?
Feem ntau, qhov ntau dua qhov tsim nyog ntawm cov khoom, qhov tsawg elastic, lossis ntau dua inelastic, qhov kev thov yuav yog, vim tias cov khoom hloov pauv tsawg. Qhov khoom kim tshaj plaws yog, qhov xav tau ntau dua elasticity Tus nqi elasticity ntawm kev thov (PED) yog ib qho kev ntsuas uas ntes cov lus teb ntawm qhov zoo ntawm qhov xav tau kom hloov pauv ntawm nws tus nqi.
Cov khoom siv puas yog khoom vaj khoom tsev?
khoom yog a khoom vaj khoom tsev ruaj khov, lossis khoom tsis yog tam sim no. Qhov no txhais tau tias nws yuav tsis raug muag hauv lub xyoo tom ntej accounting thiab tsis tuaj yeem ua kua tau yooj yim. Txawm hais tias nws yog qhov zoo kom muaj cov khoom muaj nqis tam sim no uas muab koj lub lag luam npaj nkag mus rau cov nyiaj ntsuab, tau txais cov cuab tam mus sij hawm ntev kuj yog qhov zoo.
