Hauv kev lag luam hlau sib xyaw cov khoom siv kho kom zoo nkauj, thaum hais txog fluorocarbon txheej, txhua tus thawj cov tshuaj tiv thaiv yog PVDF fluorocarbon resin coatings. Raws li cov txheej txheem siv ntau tshaj plaws thiab paub tab hauv kev lag luam, PVDF fluorocarbon txheej muaj cov huab cua tiv thaiv zoo thiab lwm yam ntsuas. Txawm li cas los xij, qhov nce siab ntawm PVDF resin txij li xyoo tas los tau ua rau cov khoom ntawm PVDF fluorocarbon coatings nruj thiab tus nqi nce. Raws li lwm yam khoom ntawm tsev neeg fluorocarbon, FEVE fluorocarbon txheej tau pib tshwm nyob rau hauv txhua tus neeg lub zeem muag. Ntawm no, peb yuav coj koj mus rau kev nkag siab tshiab ntawm FEVE fluorocarbon txheej.
Daim duab / Qhov kev thov rau PVDF rau cov roj teeb lithium hauv lub tsheb tshiab lub zog tau tawg, ua rau muaj qhov tsis txaus ntawm PVDF resin.
Tej zaum txhua tus muaj kev tsis ntseeg thaum pib, PVDF thiab FEVE yog ob qho tib si hu ua fluorocarbon txheej, yog li dab tsi yog fluorocarbon?
Thawj "fluorocarbon txheej" tau yug los hauv xyoo 1938. Cov polytetrafluoroethylene resin synthesized los ntawm DuPont hauv Tebchaws Meskas muaj cov huab cua zoo heev, tiv thaiv tshav kub, tshuaj tiv thaiv thiab cov khoom tsis-stick; Kev lag luam kev lag luam ntawm tetrafluoroethylene (PTFE) thiab kev txhim kho ntawm thawj fluorine-muaj txheej txheej khoom, Teflon, yuav tsum tau ci ntawm 420 degree los ua ib zaj duab xis. Teflon (Teflon) yog tsuas yog siv nyob rau hauv non-stick lauj kaub txheej, polymerization reactor hauv ob sab phlu, thiab lwm yam.
Daim duab / Teflon non-stick txheej
Xyoo 1965, Pennwalt thiab Elf Altochem ntawm Tebchaws Meskas tau ua tiav Kynar500 polyvinylidene fluoride (PVDF) txheej. Nws cov txheej txheem zoo yog qhov paub zoo AAMA2605 kev ua haujlwm siab txheej txheem. Dav siv nyob rau hauv lub tshav pob ntawm architectural aluminium curtain phab ntsa, nws muaj zoo heev aging kuj, tshuaj tiv thaiv thiab lwm yam khoom, tab sis tsis tuaj yeem kho nyob rau hauv chav tsev kub, thiab yuav tsum tau ci ntawm 240 degree los tsim ib zaj duab xis. Tom qab xyoo ntawm txoj kev loj hlob, PVDF fluorocarbon coatings tau dhau los ua Qhov feem ntau siv thiab paub tab txheej txheej hauv kev lag luam.
Daim duab / PVDF fluorocarbon cob txheej
Nyob rau hauv 1982, Nyiv lub Asahi iav Co., Ltd. ntse tsim Lumiflon polychlorotrifluoroethylene copolymer resin (FEVE) chav kub curing fluorocarbon coatings. Cov txheej muaj gloss siab, siab transparency, yog soluble nyob rau hauv cov pa organic solvents, thiab muaj peev xwm yuav cross-linked thiab kho nyob rau hauv chav tsev kub, ua kom fluorocarbon coatings siv rau PVC profiles, yas-steel profiles, iav fiber reinforced plastics, steel qauv. thiab lwm yam ntaub ntawv, nthuav daim ntawv thov teb. Vim tias FEVE fluorocarbon txheej tuaj yeem kho tau ntawm chav tsev kub thiab kub, lawv tsis txwv los ntawm kev tsim kho. Lawv tau siv dav hauv cov phab ntsa sab nraum zoov, hnyav tiv thaiv corrosion ntawm steel qauv thiab lwm yam kev lag luam hauv ob xyoo dhau los, thiab kev siv cov nyhuv yog qhov zoo. Tsuas yog vim hais tias tus nqi kuj siab, nws tsis tau siv dav hauv cov khoom siv kho kom zoo nkauj hlau.
Daim duab / Daim ntawv thov ntawm FEVE txheej ntawm Akashi Kaikyo Choj
Daim duab / 30 xyoo ntawm FEVE coatings daim ntawv thov rooj plaub - Hiroshima Tokiwa Choj
Pib txij xyoo 2021, nrog rau qhov kev xav tau ntawm PVDF cob rau cov roj teeb lithium, tus nqi ntawm 142b resin, cov khoom siv raw ntawm PVDF tau nce siab, ua rau muaj kev nce siab ntawm tus nqi ntawm PVDF fluorocarbon coatings thiab cov khoom tsis txaus. . Hauv kev ua lag luam tam sim no, tus nqi them tag nrho ntawm FEVE fluorocarbon txheej twb muaj qee tus nqi zoo dua piv rau PVDF fluorocarbon coatings, uas tseem muab sijhawm rau kev siv FEVE fluorocarbon txheej.
FEVE fluorocarbon resins yog copolymer tsim los ntawm fluorine monomers thiab vinyl ether los yog vinyl ester monomers. Raws li cov comonomers sib txawv, FEVE fluorocarbon txheej yog muab faib ua ntau hom: raws li hom fluoromonomer, nws tuaj yeem muab faib ua ob hom: chlorotrifluoroethylene hom thiab tetrafluoroethylene hom; Raws li hom comonomer, nws tuaj yeem muab faib ua ethylene Muaj ob hom puag ethers thiab yas esters, tsis muaj teeb meem dab tsi ntawm txheej nws yog, qhov tseem ceeb uas txiav txim siab lub siab durability ntawm cov resin yog ultra-high bond zog. nruab nrab ntawm cov ntsiab lus fluorine-carbon.
Daim duab / Daim ntawv cog lus ultra-siab ntawm CF cov ntsiab lus tuaj yeem ua kom ruaj khov ntawm cov resin
Piv nrog PVDF fluorocarbon coatings, lub ntsiab nta ntawm FEVE fluorocarbon txheej yog raws li nram no:
1. FEVE txheej muaj qhov txo qis ntawm qhov kub ntawm 216 ~ 224 degree, uas tuaj yeem txuag hluav taws xob ntau dua;
2. Cov ntsiab lus ntawm cov txheej txheem tuaj yeem ncav cuag ntau dua 70 feem pua, thiab VOC (tsawg dua lossis sib npaug ntawm 420g / L) emission thaum lub sij hawm txheej txheej yog qis dua, uas yog ntau dua raws li kev tiv thaiv ib puag ncig;
3. FEVE txheej muaj siab gloss thiab siab hardness, yog li nws yog ntau haum rau txhuas veneer khoom sprayed tom qab khoov;
Nws tuaj yeem pom los ntawm cov lus qhia saum toj no tias daim ntawv thov ntawm FEVE coatings ua tau raws li lub teb chaws txoj kev loj hlob tam sim no rau kev tiv thaiv ib puag ncig qis, kev txuag hluav taws xob thiab txo qis emission. Ob peb hnub dhau los, Zhejiang tau tshaj tawm "Zhejiang Province" 14th Tsib Xyoo Plan" Volatile Organic Compound Comprehensive Management Plan, uas yuav tsum tau tsim cov txheej txheem qis-VOC coatings hloov. ua tus qauv dav dav.
Raws li peb txhua tus paub, huab cua tsis kam ntawm PVDF fluorocarbon txheej tau dhau qhov kev sim ntawm lub sijhawm hauv kev lag luam hlau kho kom zoo nkauj. Txawm hais tias FEVE fluorocarbon coatings kuj muaj lawv cov ntawv siv, lawv kuj nyuaj vim lawv cov trifluoro thiab tetrafluoro, ethers thiab esters. Kev faib tawm ntawm cov khoom siv kho kom zoo nkauj hlau thiab lawv ntau hom kev tiv thaiv huab cua kuj tau ua teeb meem rau daim ntawv thov ntawm cov khoom siv kho kom zoo nkauj downstream hlau.
Txog qhov kawg no, Lub Tuam Txhab Hlau Composites thiab Tuam Tshoj National Testing thiab Testing Holding Group Co., Ltd. npaj yuav koom tes ua qhov kev sib piv ntawm kev ua haujlwm ntev ntawm FEVE coated aluminium ntawv cov khoom thiab PVDF fluorocarbon coated aluminium ntawv cov khoom, los ntawm kev kuaj acceleration thiab durability. Raws li tej yam ntuj tso tej yam kev mob System xeem kom comprehensively piv cov durability yam ntxwv ntawm FEVE coated txhuas ntawv cov khoom thiab ib puag ncig tus phooj ywg PVDF fluorocarbon coated txhuas ntawv. Daim phiaj xwm kev sib piv tshwj xeeb yuav tshaj tawm sai sai no.
