Hauv kev lag luam xws li sealing, cushioning, thiab thermal rwb thaiv tsev, ethylene propylene diene monomer (EPDM) ua npuas ncauj thiab silicone ua npuas ncauj sawv cev rau ob qho tib si siv polymer elastomers. Thaum sib koom ntau tus yam ntxwv, cov ntaub ntawv no nthuav tawm qhov sib txawv tseem ceeb hauv kev ua haujlwm tseem ceeb. Tsis ntev los no qhov kev hloov pauv loj heev hauv cov nqi ntawm cov khoom siv raw khoom tau hloov kho lawv cov kev lag luam kev lag luam. Kev soj ntsuam zoo ntawm lawv cov nqi sib txawv thiab cov txiaj ntsig sib piv muaj qhov tseem ceeb rau kev xaiv cov cuab yeej cuab tam thiab cov tswv yim tswj cov nqi.
Ethylene propylene diene monomer (EPDM) foaming thiab silicone ua npuas ncauj sib koom ua ke zoo kawg nkaus. Ob leeg yog kaw -cell los yog semi-qhib- cov ntaub ntawv xov tooj ntawm tes uas muaj lub cev nyhav, mos, thiab elastic zog. Lawv muaj kev sib khi zoo heev, ua kom tsis muaj dej, tiv thaiv plua plav, rwb thaiv tsev thermal, thiab kev ua haujlwm tsis zoo, ua rau lawv haum rau ntev - daim ntawv thov sab nraum zoov. Cov ntaub ntawv no qhia tau hais tias muaj zog ozone tsis kam thiab kev laus kam rau ua, thiab tuaj yeem hloov kho los ntawm cov txheej txheem xws li tuag- txiav thiab slitting los tsim ntau yam duab. Dav siv nyob rau hauv cov khoom xws li sealing strips, cushioning pads, thiab rwb thaiv tsev paj rwb, lawv ua raws li RoHS ib puag ncig certifications. Qee qhov kev qhia tshwj xeeb ua tiav cov khoom tsis muaj tshuaj lom thiab tsis muaj ntxhiab, ua tau raws li qhov yuav tsum tau ua ntawm ib puag ncig hauv kev lag luam thiab pej xeem. Tsis tas li ntawd, ob qho tib si cov ntaub ntawv yog tsim los ntawm cov txheej txheem polymerization thiab muaj kev cuam tshuam loj heev los ntawm kev hloov pauv ntawm cov khoom siv tshuaj raw khoom. Kev ua lag luam cov khoom lag luam yog sib txuas nrog cov khoom siv raw khoom muaj peev xwm thiab cov saw hlau ruaj khov.
Piv nrog rau cov yam ntxwv sib koom, qhov sib txawv ntawm ob cov ntaub ntawv tseem ceeb dua thiab ncaj qha txiav txim siab txog lawv qhov kev thov ciam teb. Hais txog qhov kub thiab txias, qhov no sawv cev rau lawv qhov sib txawv tseem ceeb tshaj plaws: EPDM ua npuas ncauj tswj kev ua haujlwm ruaj khov nyob rau hauv qhov ntev -lub sij hawm ua haujlwm kub ntawm -50℃txog 150 degree, nrog luv luv -lub sij hawm ntev mus txog 180℃. Tshaj li 200 degree, nws sai sai hardens, shrinks, thiab txhim kho cov kab nrib pleb, ua rau lub foob tsis ua hauj lwm. Silicone ua npuas ncauj, txawm li cas los xij, ua kom pom qhov dav dav ntawm qhov kub thiab txias, kev ua haujlwm ruaj khov ntawm -60℃txog 250℃dhau lub sijhawm ntev. High - kub hloov pauv tuaj yeem ua haujlwm ruaj khov rau 72 teev ntawm 280℃thaum tiv thaiv luv luv -lub sijhawm raug rau 300 degree, tswj kev ua haujlwm ruaj khov thiab kev sib khi ua haujlwm thoob plaws qhov kub thiab txias. Hais txog cov tshuaj tiv thaiv, EPDM ua npuas ncauj nthuav tawm cov dej tsis kam, acid / alkali tsis kam, haus cawv, thiab tiv thaiv cov kuab tshuaj polar, tab sis tsis tuaj yeem tiv taus roj-raws li xov xwm xws li cov roj ntxhia lossis roj roj, feem ntau o thiab ua tsis tiav thaum sib cuag. Silicone ua npuas ncauj ua kom pom cov roj zoo dua, hnyav ua haujlwm, thiab cov tshuaj tiv thaiv corrosion, nrog cov hluav taws xob zoo dua thiab cov nplaim hluav taws xob ua raws. Nws cov zaub mov-qib thiab kev kho mob-qib daim ntawv thov cuam tshuam txog cov cuab yeej siv tau zoo uas tsim nyog rau siab -qhov kawg. Cov khoom siv kho tshuab pom tau tias EPDM ua npuas ncauj lub zog siab dua, lub zog tsim kua muag zoo dua, thiab hnav tsis kam (kev ua haujlwm tas mus li compression deformation Tsawg dua los yog sib npaug li 8%), thaum silicone ua npuas ncauj muaj qhov yooj yim dua, zoo heev rov ua haujlwm, thiab ntev -lub sij hawm ruaj khov yam tsis muaj deformation, ua kom muaj kev sib khi ntev ntev. Raws li cov xwm txheej ntawm daim ntawv thov, EPDM ua npuas ncauj yog qhov tsim nyog rau ambient kub, qis -kub, thiab roj- ib puag ncig dawb, xws li lub tsev qhov rooj / qhov rai sealing, sab nraum zoov cushioning, thiab qis- nqi rwb thaiv tsev; silicone ua npuas ncauj, ntawm qhov tod tes, yog qhov zoo dua rau kev kub siab, oily, thiab high-end sealing daim ntaub ntawv, nrog rau cov khoom siv hluav taws xob tshiab, cov khoom siv kub, khoom noj khoom haus thiab kev kho mob, thiab hluav taws xob rwb thaiv tsev.
Hais txog tus nqi hloov pauv, txij li xyoo 2026, tus nqi sib txawv ntawm EPDM ua npuas ncauj thiab silicone ua npuas ncauj tau sib txawv heev vim muaj ntau yam xws li kev kub ntxhov thoob ntiaj teb, cov khoom siv raw khoom muaj peev xwm, thiab cov khoom siv logistics. Tus nqi nce siab hauv EPDM ua npuas ncauj feem ntau yog tsav los ntawm skyrocketing ethylene thiab propylene feedstock nqi. Kev ntxhov siab nyob rau hauv Middle East ua rau cov nqi roj av tsis haum, uas ua rau muaj kev nce ntxiv hauv cov nqi ethylene thiab propylene. Ua ke nrog cov qauv kev lag luam sab saud rau EPDM raw roj hmab, cov tuam txhab loj xws li Dow Chemical, ExxonMobil, thiab Sinopec tau siv cov kev hloov kho cov nqi siab. Cov xwm txheej suav nrog kev cuam tshuam kev xa khoom tuaj txawv teb chaws thiab kev lag luam ntshai kev yuav khoom ntxiv ua rau qhov xwm txheej hnyav dua. Hauv thawj peb lub hlis twg ntawm 2026, EPDM raw roj hmab cov nqi hauv tsev tau nce 17.23% lub quarter-rau-lub quarter. Nyob rau lub Peb Hlis ib leeg, cov neeg tsim khoom lag luam hauv tsev tau nce nqi los ntawm 4,000 yuan ib tuj, thaum cov khoom xa tuaj Saudi Arabian pom tus nqi nce siab tshaj 6,600 yuan ib tuj piv rau lub Ob Hlis lig. Cov kev txhim kho no ncaj qha tsav tus nqi nce mus rau EPDM cov khoom ua npuas ncauj, txo cov sij hawm luv luv ntawm kev siv tau, thiab txhawb nqa cov nqi tsim khoom hnyav rau cov tuam txhab.
Tsis zoo li qhov nce siab hauv EPDM ua npuas ncauj nqi, cov nqi silicone ua npuas ncauj tau qhia txog qhov nruab nrab nce siab nrog rau tag nrho kev lag luam siab uas tseem tswj tau. Cov ntaub ntawv tseem ceeb rau silicone ua npuas ncauj muaj xws li organosilicon tebchaw (xws li roj silicone thiab silica). Txawm hais tias tus nqi ntawm cov khoom siv hluav taws xob zoo li methanol tau ntsib qhov kev hloov pauv me me ntawm 5%-10%, Tuam Tshoj cov khoom lag luam ua tiav organosilicon, muaj peev xwm ntau lawm, thiab kev lag luam sib koom ua ke-kev txiav tawm thoob plaws tau tuav cov khoom noj{15}} qhov xav tau sib npaug, tiv thaiv cov nqi sib txawv. Cov kws tshuaj ntsuam xyuas kev lag luam kwv yees tias xyoo 2026, organosilicon kev lag luam siv tus nqi yuav nyob twj ywm ntawm 60% -70%, nrog rau DMC tus nqi stabilizing ntawm 14,500-15,500 yuan / tuj. Qhov kev ruaj ntseg tus nqi no tau ua rau muaj kev nce qib hauv cov khoom lag luam silicone ua npuas ncauj, txo qis dua li ntawm EPDM ua npuas ncauj. Qhov kev sib txawv ntawm tus nqi no tau dhau los ua qhov kev xav ib txwm muaj tias "EPDM ua npuas ncauj yog tus nqi pheej yig thaum silicone ua npuas ncauj tseem tshuav nqi nqi." Tam sim no tus nqi sib txawv ntawm ob cov ntaub ntawv tau nqaim heev, tshem tawm EPDM ua npuas ncauj tus nqi qub.
Tawm tsam qhov teeb meem no, thaum EPDM ua npuas ncauj cov nqi nce siab thiab cov nqi yuav khoom tau nyuaj rau kev tswj, cov tuam txhab yuav xav txog kev siv foamed silicone ua lwm yam khoom. Nyob rau hauv cov nqe lus ntawm kev ua tau zoo, foamed silicone comprehensively outperforms EPDM ua npuas ncauj, tshwj xeeb tshaj yog nyob rau hauv qhov tseem ceeb qhov ntev xws li kub tsis kam, roj kuj, thiab sealing stability. Nws ua tau zoo hais txog qhov mob ntawm EPDM ua npuas ncauj qhov ua rau tsis ua hauj lwm nyob rau hauv siab - kub thiab oily tej yam kev mob. Tsis tas li ntawd, nws lub neej kev pab cuam ntev dua thiab qis dua compression mus tas li deformation txo cov khoom hloov zaus thiab qis dua - lub sijhawm ua haujlwm cov nqi. Los ntawm kev xav txog tus nqi, cov nqi tam sim no ntawm ob cov ntaub ntawv tau dhau los ua qhov sib npaug. Txawm hais tias foamed silicone tsis muaj qhov zoo ntawm tus nqi, nws tus nqi ruaj khov, kev tswj cov saw hlau ruaj ntseg, thiab kev tiv thaiv kev tiv thaiv rau lwm yam xws li Middle East geopolitical tensions zoo txo cov kev pheej hmoo cuam tshuam nrog EPDM ua npuas ncauj tus nqi spikes thiab cov khoom tsis ruaj khov. Kev thov kev lag luam qhia tau hais tias kev loj hlob tsis tu ncua nyob rau hauv siab - cov ntawv thov kawg xws li cov tshuab hluav taws xob tshiab, khoom siv kho mob, thiab hluav taws xob, qhia txog kev lag luam dav dav. Nrog rau cov zaub mov paub tab{10}} qib thiab kev kho mob- cov ntawv pov thawj qib, nws ua tau raws li cov neeg xav tau kev pab rau kev hloov khoom dua tshiab thiab nthuav dav rau hauv cov lag luam hwm.
Hauv cov ntsiab lus, thaum EPDM ua npuas ncauj thiab silicone ua npuas ncauj qhia ntau yam haujlwm tseem ceeb, lawv qhov kev ua haujlwm tseem ceeb sib txawv txiav txim siab qhov sib txawv ntawm daim ntawv thov. Tus nqi hloov pauv txij li xyoo 2026 tau hloov pauv lawv txoj kev sib tw ua lag luam ntxiv. Raws li tus nqi tseem ceeb nce ntxiv thiab muab cov khoom tsis muaj zog hauv EPDM ua npuas ncauj, siv silicone ua npuas ncauj ua lwm yam khoom siv tsis yog tsuas yog ua kom cov khoom zoo thiab ua tau raws li ntau yam kev thov, tab sis kuj tseem tswj tau cov nqi yuav khoom thiab txo cov kev pheej hmoo ntawm cov saw hlau, ua lub luag haujlwm tseem ceeb hauv kev ua tiav kev txhim kho ruaj khov rau cov lag luam.