Mukusanganiswa kwerabha, bvunzo dzakawanda dzekudzvanya zvachose deformation dzinoitwa pane tensile zvachose deformation bvunzo. Sezvichakurukurwa pazasi, akawanda maficha emusanganiswa werubha anokanganisa deformation yayo. Zvinofanira kucherechedzwa pano kuti compressive zvachose deformation uye tensile zvachose deformation zvinhu zviviri zvakasiyana. Naizvozvo, izvo zvinovandudza kudzvanywa kwechigarire deformation hazvireve kuvandudza tensile zvachose deformation, uye zvinopesana. Uye zvakare, kune zvigadzirwa zvekuisa chisimbiso cherabha, compressive yekusingaperi deformation haisi yakanaka kufanotaura yekusimbisa chisimbiso kana kuisa chisimbiso kuita. Kazhinji, iyo yakanyanya kuoma iyo yekumanikidza kushushikana kuzorora kuedza kunofanirwa kuitwa, zvirinani kuita chisimbiso chechigadzirwa kunofanotaurwa.
Aya anotevera ekuyedza mapuroteni anoshandiswa kuvandudza kusingaperi deformation kuita kwerabha. Ongorora: Aya maprotocol ekuyedza anogona kusashanda mune zvese zviitiko. Pamusoro pezvo, chero shanduko inogona kuderedza deformation yekusingaperi mukutsikirira kana tension inogona kukanganisa zvimwe zvivakwa uye haizotariswe muzvinyorwa.
1. vulcanization system
Funga nezvekushandiswa kweperoxides se vulcanizing agents, iyo inogona kuumba CC cross-linked bonds uye nokudaro inovandudza deformation yekusingaperi yerabha. Vulcanization ye ethylene propylene rabha ine peroxide inogona kuderedza kudzvanywa kwekusingaperi deformation yerabha. Zvakanakira peroxide pamusoro pesarufa zviri nyore kubata peroxide uye yakaderera compressive zvachose deformation yerabha.
2. Vulcanization nguva uye tembiricha
Yepamusoro vulcanization tembiricha uye kureba vulcanization nguva inogona kuwedzera dhigirii revulcanization uye nekudaro kuderedza compression seti yerabha.
3. Cross-linking density
Kuwedzera iyo crosslinking density yerabha inogona kunyatso kudzikisa kudzvanywa kwekusingaperi deformation yerabha.
4. Sulfur vulcanization system
Kuti tideredze kudzvinyirira kwekusingaperi deformation ye EPDM musanganiswa uye kuvandudza kupisa kupisa, tinogona kufunga nezve 'low deformation' vulcanization system (mass): sulfur 0.5PHR, ZDBC 3PHR, ZMDC 3PHR, DTDM 2PHR, TMTD3PHR.
Mune W type neoprene, kushandiswa kwe diphenylthiourea accelerator kunogona kuita kuti rabha ine yakaderera compression zvachose deformation, asi dzivisa kushandisa CTP se anti-coke agent, kunyange zvazvo inogona kurebesa nguva inopisa, asi ine zvakawanda kukuvadza kudzvinyirira zvachose deformation.
Kune NBR rabha, mune yakasarudzwa vulcanization system, huwandu hwesarufa hunofanira kuderedzwa, edza kushandisa sarufa kupa muviri wakaita seTMTD kana DTDM kutsiva chikamu chesarufa, zvishoma zvesarufa zvinhu zvichavandudza compression yekusingaperi deformation performance yerabha. Iyo vulcanization system ine HVA-2 uye hyposulfuramide inogona kuita iyo rabha ine yakaderera compression zvachose deformation.
5. peroxide vulcanization system
Sarudzo yeBBPIB peroxide ichapa rabha deformation iri nani yekusingaperi mukumanikidza. Mune peroxide vulcanization systems, kushandiswa kwe-co-crosslinkers kunowedzera kusagadzikana muhurongwa, izvo zvinozoita kuti pave nehupamhi hwehupamhi hwepamusoro, nokuti kuyambuka kwemahara radicals ane unsaturated bonds kunoitika nyore nyore pane kutora hydrogen kubva kumaketani akazara. Iko kushandiswa kwe-co-crosslinkers kunoshandura rudzi rwe crosslinking network uye nokudaro inovandudza kumanikidzika kwechigarire deformation properties yeadhesive.
6. post-vulcanization
Kune vulcanization by-zvigadzirwa panguva ye vulcanization process, uye post-vulcanization process at atmospheric pressure inobvumira izvi by-products kuti zviburitswe, nokudaro zvichipa rabha yakaderera compression set.
7. Fluoroelastomer FKM/Bisphenol AF Vulcanization
Kune fluoroelastomers, kushandiswa kwebisphenol vulcanizing agent pachinzvimbo cheperoxide vulcanizing agent kunogona kupa rabha deformation yakaderera yekusingaperi mukumanikidzana.
8. Mhedzisiro yehuremu hwema molecular
Mune rabha fomula, kusarudzwa kwerabha ine yakakura avhareji mamorekuru huremu inogona kunyatso kudzikisa kudzvanywa kwekusingaperi deformation yerabha.
Kune NBR rabha, iyo rabha ine yakakwira Mooney viscosity inofanirwa kushandiswa, iyo inogona kuita iyo rabha ine diki compression yekusingaperi deformation.
9. Neoprene
W mhando neoprene ine yakaderera compression zvachose deformation pane G mhando neoprene.
10. EPDM
Kuti uite rabha ine yakaderera compression zvachose deformation, edza kudzivisa kushandisa EPDM rabha ine yakakwirira crystallinity.
11. NBR
NBR, iri emulsion polymerized ne calcium chloride se coagulant, kazhinji ine yakaderera compression set.
YeNBR rabha, kana iwe uchida kutarisa pakudzvanya kwayo zvachose deformation performance, edza kusarudza mhando dzine high branching uye high chain entanglement kana marudzi ane low acrylonitrile content.
12. Ethylene-acrylate rubber
Kune AEM rubber, peroxide vulcanizing agents inogona kupa yakaderera compression set pane diamine vulcanizing agents.
13. Resin-based homogenizers
Dzivisa kushandiswa kweresin-based homogenizers mumakomisheni erubha, sezvo izvi zvinowedzera kudzvanywa seti yekomboni.
14. Fillers
Kuderedza kuzadza, chimiro uye chaiyo nzvimbo yekuzadza (kuwedzera iyo particle size) inowanzo deredza compression set. Panguva imwecheteyo, kuwedzera basa reiyo filler surface inogonawo kuvandudza iyo compression set kuramba kwekomboni.
15. Sirika
Yakadzika silica filler mukomboni inoderedza iyo compression set. Kuti tive nekudzika kwakadzika seti, zvinodikanwa kuti udzivise kuzadza kwakanyanya kwesilica. Kana huwandu hwekuzadza hwakakwira kupfuura zvikamu makumi maviri neshanu (nehuwandu), iyo yekumanikidza yekusingaperi deformation yekomboni inova yakakura.
16. Silane coupling agent
Tichifunga nezve kushandiswa kwe silane coupling agent mune yakakwira kuzadza chiyero che precipitated silica, iyo compression yekusingaperi deformation yekunamatira inogona kuderedzwa. Silane coupling agent inogona kuderedza kudzvanywa kwechigarire deformation ye silica yakazadzwa rabha, uye zvakare kuderedza compression yekusingaperi deformation ye silicate type filler senge ivhu, talcum poda uye imwe yakazadzwa rabha.
17. Plasticizers
Kudzikisa huwandu hwekuzadza kweplasticizer murubha kazhinji kunoderedza kudzvanywa kwekusingaperi deformation yerabha.
