Insay rɔba kɔmpawnd, dɛn kin du mɔ kɔmpreshɔn pɔrmanent difɔmeshɔn tɛst pas tɛnsiɛl pɔrmanent difɔmeshɔn tɛst. As wi go tɔk bɔt dɔŋ ya, bɔku pat dɛn pan wan rɔba kɔmpawnd kin afɛkt di difɔmeshɔn prɔpati dɛn we i gɛt. I fɔ notis ya se kɔmprɛsiv pɔrmanent difɔmeshɔn ɛn tɛnsiɛl pɔrmanent difɔmeshɔn na tu difrɛn prɔpati dɛn. So, wetin de improve kompreshon permanent difכmeshכn nכ de nכsכri improv tεnsεl pεrmanεnt difכmeshכn, εn vays vεsa. Apat frɔm dat, fɔ rɔba siling prodak dɛm, kɔmprɛsiv pɔrmanent difɔmeshɔn nɔto gud prɛdiktɔ fɔ silin prɛshɔn ɔ silin pefɔmɛns. Bɔku tɛm, di mɔ di kɔmprɛsiv strɛs rilaks ɛkspiriɛns kin at fɔ du, na di mɔ dɛn kin prɛdikt di silin pefɔmɛns fɔ di prɔdak.
Di fכlכw εkspεriεns protכkכl dεm dεn yuz fכ improv di pεrmanεnt difכmeshכn pεrformεns fכ di rכba. Notis: Dɛn ɛkspirimɛnt protɔkɔl ya nɔ kin aplay pan ɔl di kes dɛm. Apat frɔm dat, ɛni vɛriɔbul we kin ridyus di pɔrmanent difɔmeshɔn insay kɔmpreshɔn ɔ tɛnsiɔn kin afɛkt ɔda prɔpati dɛn ɛn dɛn nɔ go adrɛs am na di tɛks.
1. Sistem we nɔ gɛt vulkanizashɔn .
Tink bɔt aw dɛn de yuz pɔrokayd dɛn as vulkanizin ɛjɛn, we kin mek CC krɔs-link bɔnd ɛn dis kin mek di rɔba difɔm di rɔba bɛtɛ fɔ ɔltɛm. Vulcanization of ethylene propylene rכba wit pεrכksayd kin ridyus di kכmpreshכn pεrmanεnt difכmeshכn fכ di rכba. di advantej dεm fכ pεrכksayd ova sכlfa na di simpul we aw dεn de hεndl pεrכksayd εn di lכw kכmpreshכn pεrmanεnt difכmeshכn fכ di rכba.
2. Vulkanizashɔn tɛm ɛn tɛmpracha .
hכy vulkanizεshכn tεmprachכ εn lכng vulkanizεshכn tεm kin inkrεs di digri fכ vulkanizashכn εn dat mek i kin ridyus di kכmpreshכn sεt fכ di rכba.
3. Krɔs-link dɛnsiti .
If yu inkrisayz di krɔslink density na di rɔba kin ebul fɔ ridyus di kɔmpreshɔn pɔrmanent difɔmeshɔn fɔ di rɔba fayn fayn wan.
4. Sɔlfɔ Vulkanizayshɔn Sistɛm .
Fɔ mek wi ebul fɔ ridyus di kɔmprɛsiv pɔrmanent difɔmeshɔn fɔ EPDM kɔmpawnd ɛn impruv di ɔt rɛsistɛns, wi kin tink bɔt dis 'lɔ difɔmeshɔn' vulkanizashɔn sistem (MASS): sɔlfɔ 0.5phr, ZDBC 3phr, ZMDC 3phr, DTDM 2phr, TMTD3phr.
Insay W tayp neoprene, di yus fɔ diphenylthiourea aksilatɔ kin mek di rɔba wit lɔw kɔmpreshɔn pɔrmanent difɔmeshɔn, bɔt avɔyd fɔ yuz CTP as anti-kɔk ɛjɛn, pan ɔl we i kin prolɔng di bɔn tɛm, bɔt i gɛt mɔ damej to kɔmpreshɔn pɔrmanent difɔmeshɔn.
Fɔ NBR rɔba, insay di vulkanizashɔn sistem we dɛn dɔn pik, di mɔnt fɔ sɔlfɔ fɔ ridyus, tray fɔ yuz sɔlfɔ fɔ gi bɔdi lɛk TMTD ɔ DTDM fɔ riples pat pan di sɔlfɔ, lɛs sɔlfɔ ɛlimɛnt dɛn go impruv di kɔmpreshɔn pɔrmanent difɔmeshɔn pefɔmɛns fɔ di rɔba. Di vulcanization sistem wit HVA-2 ɛn hyposulfuramide kin mek di rɔba wit lɔwa kɔmpreshɔn pɔrmanent difɔmeshɔn.
5. Pɛrɔksayd Vulkanizayshɔn Sistɛm .
Di choice of BBPIB peroxide go gi di raba wan beta permanent difכmeshכn in kכmpreshכn. insay pεrכksayd vulkanizashכn sistεm dεm, di yus fכ kכ-krכslink dεm de inkrεs di כnsatyurayshכn na di sistεm, we in tכn de lid to wan ay kכroslink dεnsiti, biכs kכroslink fכ fri radikal dεm wit כnsatyuret bon dεm de apin izi wan pas fכ tek haydrojεn frכm satεrayt chen dεm. Di yus ɔf kɔ-krɔslinkers chenj di kayn krɔslinking nɛtwɔk ɛn so impruv di kɔmpreshɔn pɔrmanent difɔmeshɔn prɔpati dɛm fɔ di adhesive.
6. Pɔst-vulkanizashɔn .
Vulkanizayshɔn bay-prɔdakt dɛn de we dɛn de du di vulkanizashɔn prɔses, ɛn di post-vulkanizashɔn prɔses na atmosfɛrik prɛshɔn de alaw dɛn bay-prɔdakt ya fɔ rilis, so dat de gi di rɔba wan lɔwa kɔmpreshɔn sɛt.
7. FluoroeLastomer FKM/BISPHENOL AF VULKANIZƐSHƆN .
Fɔ fluoroelastomers, di yus fɔ bisphenol vulcanizing agent instead of peroxide vulcanizing agent kin gi di rɔba wan lɔwa pɔrmanent difɔmeshɔn in kɔmpreshɔn.
8. Efεkt כf mכlikul wεyt .
Insay wan rɔba fɔmula, di choice of rubber wit big average molecular weight kin effektivli ridyus di kɔmpreshɔn pɔrmanent difɔmeshɔn fɔ di rɔba.
Fɔ NBR rɔba, dɛn fɔ yuz di rɔba wit ay muni viskɔsiti, we kin mek di rɔba wit smɔl kɔmpreshɔn pɔrmanent difɔmeshɔn.
9. Neoprene .
W tayp neoprene gɛt lɔwa kɔmpreshɔn pɔrmanent difɔmeshɔn pas G tayp neoprene.
10. EPDM .
Fɔ mek di rɔba wit lɔw kɔmpreshɔn pɔrmanent difɔmeshɔn, tray fɔ avɔyd fɔ yuz EPDM rɔba wit ay kristaliniti.
11. NBR .
NBR, we na emulshɔn polimɛrayz wit kalsiɔm klorayd as kɔagulant, kin gɛt lɔw kɔmpreshɔn sɛt.
Fɔ NBR rɔba, if yu want fɔ pe atɛnshɔn pan in kɔmpreshɔn pɔrmanent difɔmeshɔn pefɔmɛns, den tray fɔ pik vayriet dɛn wit ay branch ɛn ay chen ɛntanglemɛnt ɔ vayriet dɛn wit lɔw akrilonitril kɔntinyu.
12. Etilin-Akrilet rɔba .
Fכ AEM rכba, pεrכksayd vulkanizing ejen kin gi lכw kכmpreshכn set pas dayamin vulkanizing ejen.
13. Resin-based homogenizers .
Avɔyd di yus ɔf rɛsin-bɛs homojɛnayza dɛn na rɔba kɔmpawnd, as dis de inkrisayz di kɔmpreshɔn sɛt fɔ di kɔmpawnd.
14. Fila dɛn .
Ridyus di filin, strɔkchɔ ɛn spɛshal sɔfayz eria na di fil (inkrisin di patikyula saiz) go ɔltɛm ridyus di kɔmpreshɔn sɛt. di sem tεm, we yu inkrεs di aktiviti fכ di filεr sεf kin impruv di kכmpreshכn set rεsistεns fכ di kכmpawnd bak.
15. Silika .
Lɔwa silika filɛ na di kɔmpawnd go ridyus di kɔmpreshɔn sɛt. Fɔ mek dɛn ebul fɔ gɛt lɔw kɔmpreshɔn sɛt, i nid fɔ avɔyd fɔ mek dɛn nɔ ful-ɔp di silika bɔku bɔku wan. If di filin kwantiti ay pas 25 pat (bay mas), di kɔmpreshɔn pɔrmanent difɔmeshɔn na di kɔmpawnd kin big.
16. Silan kɔpl ɛjɛn .
We yu tink bɔt di yus fɔ silan kɔpl ɛjɛn na di ay filin amɔnt fɔ prɛsipitayt silika, di kɔmpreshɔn pɔrmanent difɔmeshɔn fɔ di adhesive kin ridyus. Silane coupling agent kin ridyus di kɔmpreshɔn pɔrmanent difɔmeshɔn fɔ silika ful rɔba, ɛn i kin ridyus bak di kɔmpreshɔn pɔrmanent difɔmeshɔn fɔ silikat tayp filɛ lɛk kle, talkum paoda ɛn ɔda rɔba we ful-ɔp.
17. Plastisayza dɛn .
If yu ridyus di filin we dɛn de ful-ɔp plasticiza na di rɔba, dat go mek di kɔmpreshɔn nɔ de fɔ ɔltɛm fɔ ɔltɛm di rɔba.
