Chloroprene roj hmab (CR), tseem hu ua chloroprene roj hmab, yog ib qho elastomer tsim los ntawm alpha polymerization ntawm chloroprene (ie, 2-chloro-1,3-butadiene) ua cov khoom siv tseem ceeb.Nws yog thawj zaug tsim los ntawm Wallace Hume Carothers ntawm DuPont thaum lub Plaub Hlis 17, 1930. DuPont tshaj tawm rau lub Kaum Ib Hlis 1931 tias nws tau tsim cov roj hmab chloroprene thiab tau tshaj tawm rau kev lag luam hauv xyoo 1937, ua chloroprene roj hmab yog thawj cov roj hmab hluavtaws ua lag luam. .
Chloroprene roj hmab muaj zog.
Neoprene tsos yog milky dawb, beige los yog lub teeb xim av flakes los yog lumps, ceev 1.23-1.25g / cm3, iav hloov kub: 40-50 ° C, crumbling point: 35 ° C, softening point txog 80 ° C, decomposition ntawm 230- 260 ° C.Soluble nyob rau hauv chloroform, benzene thiab lwm yam organic solvents, o nyob rau hauv zaub roj thiab ntxhia roj yam tsis dissolving.80-100 ° C tuaj yeem siv tau ntev, nrog rau qee yam ntawm cov nplaim hluav taws.
Neoprene roj hmab thiab cov qauv roj hmab ntuj zoo sib xws, qhov sib txawv yog tias cov polar tsis zoo hluav taws xob hauv cov roj hmab neoprene hloov cov methyl pawg hauv cov roj hmab ntuj, uas txhim kho cov ozone kuj, roj kuj thiab kub tsis kam ntawm neoprene roj hmab.Nyob rau hauv luv luv, nws muaj zoo heev huab cua tsis kam, ozone kuj, tshuaj corrosion kuj, roj kuj, thiab lwm yam. Nws lub cev thiab txhua yam khoom kuj zoo dua.Yog li ntawd, neoprene yog ntau yam, ob qho tib si raws li cov roj hmab dav dav thiab ua cov roj hmab tshwj xeeb.
Lub ntsiab lub cev thiab mechanical zog yog raws li nram no:
1.Lub zog ntawm neoprene roj hmab
Cov khoom tensile ntawm neoprene zoo ib yam li cov roj hmab ntuj, thiab nws cov roj hmab nyoos muaj lub zog tensile siab thiab elongation ntawm kev tawg, uas yog cov roj hmab uas muaj zog rau tus kheej;Cov qauv molecular ntawm neoprene yog cov molecular tsis tu ncua, thiab cov saw muaj cov polar pawg ntawm cov tshuaj chlorine atoms, uas ua rau muaj zog intermolecular.Yog li ntawd, nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, nws yog ib qho yooj yim mus ncab thiab crystallize (tus kheej-reinforced), thiab intermolecular slippage tsis yooj yim.Tsis tas li ntawd, qhov hnyav molecular loj dua (2.0 ~ 200,000), yog li lub zog tensile loj dua.
2.Excellent aging kuj
Chlorine atoms txuas nrog ob daim ntawv cog lus ntawm neoprene molecular saw ua rau ob daim ntawv cog lus thiab cov tshuaj chlorine atoms tsis ua haujlwm, yog li kev cia ruaj khov ntawm nws cov roj hmab vulcanized zoo;Nws tsis yog yooj yim los cuam tshuam los ntawm tshav kub, oxygen thiab lub teeb nyob rau hauv cov huab cua, uas qhia tau hais tias zoo heev aging kuj (huab cua kuj, ozone kuj thiab kub kuj).Nws txoj kev laus tsis kam, tshwj xeeb tshaj yog huab cua thiab ozone tsis kam, yog qhov thib ob tsuas yog ethylene propylene roj hmab thiab butyl roj hmab hauv cov hom phiaj siv roj hmab, thiab zoo dua li cov roj hmab ntuj;nws cov cua sov kuj zoo dua li cov roj hmab ntuj thiab styrene butadiene roj hmab, thiab zoo ib yam li cov roj hmab nitrile, nws tuaj yeem siv rau lub sijhawm luv luv ntawm 150 ℃, thiab siv tau ntev li 4 lub hlis ntawm 90-110 ℃.
3.Excellent nplaim-tiv taus
Neoprene yog lub hom phiaj zoo tshaj plaws ntawm cov roj hmab, nws muaj cov yam ntxwv ntawm kev sib cuag nrog cov nplaim hluav taws kub hnyiab tau, tab sis cov nplaim hluav taws raug rho tawm, qhov no yog vim neoprene hlawv, lub luag hauj lwm ntawm qhov kub thiab txias tuaj yeem decomposed nyob rau hauv lub luag hauj lwm ntawm hydrogen chloride gas thiab ua rau hluav taws tua.
4.Excellent roj kuj, hnyav kuj
Cov roj tsis kam ntawm cov roj hmab neoprene yog qhov thib ob tsuas yog cov roj hmab nitrile thiab zoo dua li lwm cov roj hmab dav dav.Qhov no yog vim lub neoprene molecule muaj cov polar chlorine atoms, uas ua rau kom cov polarity ntawm cov molecule.Cov tshuaj tiv thaiv ntawm neoprene kuj zoo heev, tshwj tsis yog muaj zog oxidizing acid, lwm cov kua qaub thiab alkalis yuav luag tsis cuam tshuam rau nws.Cov dej tsis kam ntawm neoprene kuj zoo dua li lwm cov roj hmab hluavtaws.
Dab tsi yog qhov chaw thov ntawm neoprene?
Neoprene yog siv nyob rau hauv ntau yam kev siv, feem ntau yog rau cov laus-resistant cov khoom, xws li hluav taws xob xov hlau, cable tawv, railroad taug kev hauv ncoo ncoo, tsheb kauj vab log sidewalls, roj hmab dams, thiab lwm yam .;Thaum tshav kub kub-resistant thiab nplaim-resistant khoom, xws li tshav kub-resistant conveyor siv, hoses, roj hmab los xij, thiab lwm yam.;roj-resistant thiab tshuaj-resistant khoom, xws li hoses, roj hmab rollers, roj hmab ntawv, tsheb thiab tsheb laij teb qhov chaw;lwm yam khoom xws li cov ntaub ntawv roj hmab, khau roj hmab thiab cov nplaum, thiab lwm yam.
1. Hlau thiab cable npog cov ntaub ntawv
Neoprene yog lub hnub ci resistant, ozone resistant, thiab muaj zoo heev tsis-flammable, yog lub zoo tagnrho cable khoom rau mines, ships, tshwj xeeb tshaj yog rau ua cable sheathing, tab sis kuj feem ntau siv rau tsheb, aircraft, cav ignition xov hlau, atomic fais fab nroj tsuag tswj cables, nrog rau cov xov tooj cua.Nrog neoprene rau lub tsho ntawm cov hlau thiab cable nws siv kev nyab xeeb dua li cov roj hmab ntuj ntau dua 2 zaug ntev dua.
2.Txoj siv txoj siv sia, kis tau tus mob
Neoprene muaj cov khoom siv zoo heev, tsim nyog rau kev tsim cov khoom siv thauj khoom thiab kev sib kis, tshwj xeeb tshaj yog nrog nws cov khoom siv sib kis tau zoo dua li lwm cov roj hmab.
3.Oil resistant hose, gasket, anti-corrosion Murari
Raws li nws cov roj ua haujlwm zoo, tshuaj tiv thaiv corrosion, tiv thaiv tshav kub thiab lwm yam ntxwv, neoprene yog dav siv hauv kev tsim cov khoom siv roj thiab ntau yam hoses, tapes, gaskets thiab cov khoom siv tshuaj tiv thaiv corrosion-resistant, tshwj xeeb tshaj yog kub-resistant. conveyor siv, roj thiab kua qaub thiab alkali resistant hoses, thiab lwm yam.
4.Gasket, txhawb nqa ncoo
Neoprene tau zoo sealing thiab flexing kuj, ntau thiab ntau lub tsheb qhov chaw ua los ntawm neoprene, xws li lub qhov rais thav duab, hoses ntawm ntau yam gaskets, thiab lwm yam., tab sis kuj siv raws li ib tug choj, mine nqa tsheb, roj tank txhawb ncoo.
5.Adhesive, sealant
Neoprene nplaum ua los ntawm cov roj hmab neoprene ua cov khoom siv tseem ceeb muaj qhov ua tau zoo, thiab kev laus ua haujlwm, tshuaj tiv thaiv thiab roj tsis kam, thiab muaj zog sib txuas.
Neoprene latex tsis muaj cov kuab tshuaj organic, yog li nws muaj txiaj ntsig zoo hauv kev nyab xeeb thiab kev noj qab haus huv, qhov twg carboxyl neoprene tuaj yeem siv los ua cov nplaum rau roj hmab thiab hlau.chloroprene roj hmab muaj polarity, yog li cov kev sib txuas substrate muaj ntau yam kev thov, feem ntau yog iav, hlau, tawv PVC, ntoo, plywood, txhuas, ntau yam vulcanized roj hmab, tawv thiab lwm yam nplaum.
6.Lwm yam khoom
Neoprene kuj tau siv dav hauv kev thauj mus los thiab kev tsim kho.Xws li kev siv neoprene ua npuas ncauj cushion nyob rau hauv lub tsheb npav thiab subway tsheb, tuaj yeem tiv thaiv hluav taws;aircraft, nrog cov roj hmab ntuj thiab neoprene sib xyaw ua kom cov roj-tiv taus;cav nrog roj hmab qhov chaw, gaskets, seals, thiab lwm yam .;kev tsim kho, siv nyob rau hauv high-rise tsev gasket, ob qho tib si nyab xeeb thiab shockproof;Neoprene kuj tseem siv tau los ua cov khoom siv dag zog, cuam tshuam rau ntawm lub foob loj, luam ntawv, dyeing, luam ntawv, ntawv thiab lwm yam muaj roj hmab rollers Neoprene kuj tseem siv tau ua cua cushion, airbag, khoom cawm siav, nplaum nplaum, thiab lwm yam.
Post lub sij hawm: Oct-20-2022