EPDM (ethylene propylene diene monomer) roj hmab
EPDM roj hmabyog ib copolymer ntawm ethylene, propylene thiab ib tug me me ntawm peb monomer non-conjugated diene.Lub npe thoob ntiaj teb yog: Ethyiene Propyene Diene Methyiene, lossis EPDM luv luv.EPDM roj hmab tau zoo heevUV tsis kam, huab cua tsis kam, kub laus tiv thaiv, kub tsis kam, ozone tsis kam, tshuaj tiv thaiv, dej tsis kam, hluav taws xob zoo thiab elasticity, thiab lwm yam khoom siv lub cev thiab tshuab.Cov txiaj ntsig zoo no tsis tuaj yeem hloov los ntawm ntau lwm cov ntaub ntawv.
1. Huab cua tsis kammuaj peev xwm tiv taus qhov txias txias, kub, qhuav thiab av noo rau lub sijhawm ntev, thiab muaj kev tiv thaiv zoo heev tiv thaiv kev yaig ntawm cov daus thiab dej, uas tuaj yeem ua tiav kev pab cuam lub neej ntawm lub qhov rooj, qhov rais thiab kab hlau rhuav phab ntsa.
2. Thaum tshav kub kub aging kuj txhais tau hais tias nws muaj zog tiv taus cua kub aging.Nws tuaj yeem siv ntawm -40 ~ 120 ℃ rau lub sijhawm ntev.Nws tseem tuaj yeem tuav cov yam ntxwv zoo rau lub sijhawm ntev ntawm 140 ~ 150 ℃.Nws tuaj yeem tiv taus qhov kub thiab txias ntawm 230 ~ 260 ℃ nyob rau lub sijhawm luv luv.Nws tuaj yeem ua lub luag haujlwm hauv nroog tsim kev tawg.Ncua nyhuv;ua ke nrog kev siv cov mis tshwj xeeb,EPDM roj hmabmuaj qhov zoo sib xws ntawm -50 ° C txog 15 ° C.Qhov chaw tsim khoom tsim no tau tsim cov txiaj ntsig zoo.
3. vimEPDMmuaj ozone kuj zoo heev, nws tseem hu ua "tsis muaj roj hmab tawg".Nws yog tshwj xeeb tshaj yog siv nyob rau hauv ntau lub nroog cov tsev nrog txawv atmospheric indexes thiab yog kiag li raug rau huab cua.Nws tseem yuav qhia nws cov khoom superiority.
4. Kev tiv thaiv hluav taws xob ultraviolet muab kev tiv thaiv ib puag ncig rau cov neeg siv cov tsev siab siab;Nws tuaj yeem tiv taus 60 mus rau 150Kv qhov hluav taws xob, thiab muaj kev tiv thaiv zoo heev, hluav taws xob tawg tsis kam, thiab arc tsis kam.Tsawg kub elasticity, qhov kub thiab txias thaum lub peev xwm tensile ncav cuag 100MPa yog -58.8 ℃.
5. Vim nws cov khoom tshwj xeeb zoo heev, nws feem ntau siv rau hauv kev tsim cov dav hlau, tsheb, tsheb ciav hlau, tsheb npav, nkoj, siab thiab tsis tshua muaj hluav taws xob hloov khoom, iav kab hlau rhuav phab ntsa, aluminium alloy thermal rwb thaiv tsev qhov rais sealing qhov chaw thiab cov khoom siv dhia dej, high-pressure steam soft Pipes, tunnels, viaduct pob qij txha thiab lwm yam dej tsis zoo thiab lwm yam kev lag luam thiab kev ua liaj ua teb sealing qhov chaw.
Cov khoom tshwj xeeb tseem ceeb thiab cov kev ntsuas tsis zoo
Dense rubber part Sponge rubber part
Qhov ntsuas kub -40 ~ 140 ℃ -35 ~ 150 ℃
Hardness 50 ~ 80 ℃ 10 ~ 30 ℃
Tensile hardness (&) ≥10 -
Elongation ntawm so (&) 200 ~ 600% 200 ~ 400%
Compression teeb 24 teev 70(≯) 35% 40%
Qhov ceev 1.2 ~ 1.35 0.3 ~ 0.8
1. Vim qhov zoo ntawm cov yam ntxwv ntawm cov qauvsilicone roj hmab, nws muaj peev xwm tswj tau zoo stability nyob rau hauv ib tug tej lub sij hawm ntau yam thiab ib tug tej yam kub ntau yam.Piv nrog rau lwm cov khoom siv hluavtaws, silicone roj hmab tuaj yeem tiv taus qhov kub thiab txias ntawm -101 txog 316 ° C thiab tuav nws txoj kev ntxhov siab.
2. Lwm yam khoom tshwj xeeb ntawm no universal elastomer:hluav taws xob tsis kam, qhov cuam tshuam tsawg kawg ntawm cov tshuaj tua kab mob;kev co kuj, yuav luag tas li tus nqi sib kis thiab resonance zaus ntawm -50 ~ 65 ° C;breathability zoo dua li lwm cov khoom siv polymers;dielectric zog 500V·km-1;kis tau tus mob <0.1-15Ω·cm;loosen los yog tuav adhesion;ablation kub 4982 ° C;tsawg kawg nkaus tso tawm tom qab kev sib xyaw ua ke;yooj yim rau daim ntawv thov raws li cov cai tswj cov zaub mov noj;nplaim retardant khoom;Cov khoom tsis muaj xim thiab tsw ntxhiab tuaj yeem tsim tau;waterproof khoom;physiological inertness ntawm tsib tshuaj lom thiab kev kho mob cog.
3. Silicone roj hmabtuaj yeem ua rau cov khoom ntawm ntau yam xim raws li cov neeg siv khoom xav tau thiab cov kev xav tau kos duab.
Zuag qhia tag nrho lub cev muaj zog Index
Hardness ntau yam 10 ~ 90
Tensile zog / MPa mus txog 9.65
Elongation /% 100 ~ 1200
Tear zog (DkB)/(kN·m﹣¹) Max.122
Bashaud elastometer 10 ~ 70
Compression mus tas li deformation 5% (kuaj mob 180oC, 22H)
Qhov kub thiab txias / ℃ -101 ~ 316
3. TPV / TPE thermoplastic elastomer
Thermoplastic elastomer muaj lub cev thiab txhua yam khoom ntawm vulcanized roj hmab thiab cov txheej txheem ntawm cov yas mos.Nws yog qhov chaw nruab nrab ntawm cov yas thiab roj hmab.Hais txog kev ua, nws yog ib hom yas;hais txog cov khoom, nws yog ib hom roj hmab.Thermoplastic elastomers muaj ntau yam zoo dua cov thermoset rubbers.
1. Qhov qis dua ntawm cov thermoplastic elastomer(0.9 ~ 1.1g / cm3), yog li txuag nqi.
2.Tsawg compression deformationthiab zoo heev khoov qaug zog kuj.
3. Nws tuaj yeem ua thermally welded los txhim kho kev sib dhos yooj yim thiab sealing.
4. Cov ntaub ntawv pov tseg (kev khiav tawm burrs, extrusion pov tseg cov ntaub ntawv) thiab cov khoom pov tseg zaum kawg uas tsim los ntawm cov txheej txheem tsim khoom tuaj yeem raug xa rov qab ncaj qha rau kev rov siv dua, txo kev ua qias tuaj ib puag ncig thiab nthuav cov peev txheej rov ua dua tshiab.Nws yog ib qho zoo tagnrho ntsuab thiab ib puag ncig tus phooj ywg khoom.
Post lub sij hawm: Oct-31-2023