Zvishandiso zverabha zvakajairika——hunhu hweEPDM

Zvishandiso zverabha zvakajairika——hunhu hweEPDM

Advantage:
Yakanyanya kunaka kuramba kuchembera, kuramba kwemamiriro ekunze, kuvharwa kwemagetsi, kemikari yekudzivirira kwecorrosion uye kukanganisa elasticity.

Zvakaipa:
Kunonoka kupora nekukurumidza;Zvakaoma kusanganisa nemamwe marubha asina unsaturated, uye iyo self adhesion uye mutual adhesion yakashata kwazvo, saka mashandiro ekugadzirisa haana kunaka.

Ningbo Yokey Automotive Parts Co., Ltd inotarisa pakugadzirisa matambudziko evatengi ezvigadzirwa zverabha uye kugadzira akasiyana maumbirwo emhando zvichienderana neakasiyana mashandisirwo mamiriro.

Properties: details
1. Yakaderera density uye yakakwirira kuzadza
Ethylene propylene rabha imhando yerabha ine yakaderera density ye0.87.Uye zvakare, huwandu hwakawanda hwemafuta hunogona kuzadzwa uye mafirita anogona kuwedzerwa, ayo anogona kuderedza mutengo wezvigadzirwa zverubha uye kugadzira mutengo wepamusoro weraw raw ethylene propylene rubber.Mukuwedzera, kune ethylene propylene rubber ine high Mooney value, simba remuviri uye remagetsi mushure mekuzadza kwepamusoro hakuzoderedzwa nekuwanda.

2. Kuramba kuchembera
Ethylene propylene rabha ine yakanakisa kuramba kwemamiriro ekunze, ozone kuramba, kupisa kupisa, asidhi uye alkali kuramba, mhute yemvura kuramba, kugadzikana kwemavara, kuita kwemagetsi, kuzadza mafuta uye kuyerera kwekamuri tembiricha.Ethylene propylene rubber zvigadzirwa zvinogona kushandiswa kwenguva yakareba pa120 ℃, uye inogona kushandiswa kwenguva pfupi kana kupindirana pa150 - 200 ℃.Iyo tembiricha yekushandisa inogona kuwedzerwa nekuwedzera yakakodzera antioxidant.EPDM yakasanganiswa neperoxide inogona kushandiswa pasi pemamiriro akaoma.Apo ozone concentration yeEPDM i50 phm uye nguva yekutambanudza i30%, EPDM inogona kusvika 150 h pasina kuputika.

3. Corrosion resistance
Nekuda kwekushaikwa kwe polarity uye yakaderera unsaturation ye ethylene propylene rubber, ine kupikisa kwakanaka kumakemikari akasiyana-siyana epolar akadai sedoro, asidhi, alkali, oxidant, refrigerant, detergent, mhuka nemafuta emiriwo, ketone uye girizi;Zvisinei, ine kusagadzikana kwakashata mumafuta uye zvinonyungudutsa zvinonhuhwirira (zvakadai sepeturu, benzene, nezvimwewo) nemafuta emamineral.Kuita kuchadererawo pasi pekuita kwenguva refu kweiyo concentrated acid.Mu ISO/TO 7620, iyo data pamusoro pemhedzisiro yeanosvika mazana mana ekuora gasi uye emvura makemikari pane zvivakwa zveakasiyana marabha anounganidzwa, uye 1-4 mamakisi anotsanangurwa kuratidza maitiro avo.Mhedzisiro yemakemikari anoodza pane zvinhu zverubha ndeaya anotevera:

Mhedzisiro yeGiredhi Vhoriyamu Kuzvimba Mwero/% Kuomarara Kuderedzwa paZvivakwa
1<10<10 Zvishoma kana hapana
2 10-20<20 diki
3 30-60<30 Medium
4>60>30 serious

4. Kupikisa kwehuputi hwemvura
EPDM ine yakanakisa kurwisa kwehutsi uye inofungidzirwa kuve yepamusoro kune yayo kupisa kupisa.Mune 230 ℃ superheated steam, chitarisiko hachinje mushure memaawa angangoita zana.Nekudaro, pasi pemamiriro akafanana, kutaridzika kwefluorine rabha, silicon rabha, fluorosilicone rabha, butyl rabha, nitrile rabha uye rabha rechisikigo zvakadzikira zvakanyanya munguva pfupi.

5. Kupokana nemvura inopisa
Ethylene propylene rubber inewo kumira zvakanaka kumvura inopisa, asi ine hukama hwepedyo kune ese vulcanization masisitimu.Iyo mechanical properties ye ethylene propylene rubber (EPR) yakasvibiswa ne dimorphine disulfide uye TMTD yakashandurwa zvishoma mushure mekunyudzwa mumvura 125 ℃ yakanyanya kupisa kwemwedzi gumi nemishanu, uye kuwedzera kwehuwandu hwaingova 0.3%.

6. Kuita kwemagetsi
Ethylene propylene rabha ine yakanakisa kuvharwa kwemagetsi uye corona resistance, uye masimba ayo emagetsi ari pamusoro kana pedyo neaya estyrene butadiene rubber, chlorosulfonated polyethylene, polyethylene uye cross-linked polyethylene.

7. Kunaka
Nemhaka yokuti ethylene propylene rubber haina polar substituents mukugadzirwa kwayo kwema molecular uye yakaderera molecular cohesion simba, ketani yaro ye molecular inogona kuchengetedza kushanduka-shanduka mune zvakasiyana-siyana, yechipiri chete kune rabha rechisikigo uye cis polybutadiene rubber, uye inogona kuramba ichidzika kutonhora.

8. Kunamatira
Nekuda kwekushaikwa kwemapoka anoshanda muchimiro chemolecular ye ethylene propylene rubber, simba rekubatana rakaderera, uye rabha iri nyore kupfapfaidza, saka iyo self adhesion uye mutual adhesion yakashata zvakanyanya.