Muindasitiri yerabha, yekupedzisira kusimba simba chinhu chakakosha chemuchina. Iyi yekuyedza parameter inoyera simba rekupedzisira reiyo vulcanised rabha komboni. Kunyange kana chigadzirwa cherabha chisati chambodhonzwa pedyo nekusimba kwayo kwekupedzisira, vashandisi vazhinji vezvigadzirwa zverabha vachiri kuiona sechiratidzo chakakosha chehuwandu hwese hwekomboni. Kusimba kwesimba nekudaro kunonyanya kutaurwa, uye kunyangwe kushandiswa kwekupedzisira kwechimwe chigadzirwa kusinei nazvo, vanogadzira kazhinji vanofanirwa kubuda munzira yavo kuti vasangane nazvo.
1. Mitemo yose
Kuti uwane simba repamusoro-soro, munhu anofanirwa kutanga ne elastomers apo strain-induced crystallization inogona kuitika, semuenzaniso NR, CR, IR, HNBR.
2. Natural rubber NR
Zvinamira zvakavakirwa parabha rechisikigo kazhinji zvine simba rakanyanya kusimba kupfuura neoprene adhesives. Pamagiredhi akasiyana-siyana erabha rechisikigo, No. 1 fume film ine yakanyanya kusimba simba. Zvave zvichishumwa kuti, kunyanya munyaya ye carbon black yakazadzwa makomisheni, No. Pamakomisheni erabha echisikigo, makemikari epurasitiki (plastisol) akadai sebiphenyl amidothiophenol kana pentachlorothiophenol (PCTP) anofanirwa kudzivirirwa, sezvo achidzikisa kusimba kwemusanganiswa.
3. Chloroprene CR
Chloroprene (CR) is strain-induced crystalline rubber inopa simba rakanyanya kusimba mukushaikwa kwemafiritsi. Muchokwadi, simba rekusimba dzimwe nguva rinogona kuwedzerwa nekudzikisa huwandu hwekuzadza. Huremu hwemamorekuru hweCR hunopa masimba epamusoro ekusimba.
4. Nitrile rabha NBR
NBR ine acrylonitrile yakakwira (ACN) inopa simba repamusoro. NBR ine nhete yemamorekuru uremu kugovera inopa yakakwira tensile simba.
5. Kufurira kwehuremu hwema molecular
Nekugonesa, kushandiswa kweNBRs ine yakakwira meniscus viscosity uye yakakwira molecular uremu inopa yakakwirira kusimba masimba.
6. Carboxylated elastomers
Funga kutsiva uncarboxylated NBR necarboxylated XNBR uye uncarboxylated HNBR necarboxylated XHNBR kuti uvandudze kusimba kwemukomboni.
Carboxylated NBR ine huwandu hwakakodzera hwezinc oxide inopa kusimba kwepamusoro kupfuura kwakajairika NBR.
7. EPDM
Kushandiswa kwesemi-crystalline EPDM (yakakwirira ethylene yemukati) inopa yakakwira kusimba masimba.
8. Reactive EPDM
Kutsiva EPDM isina kuchinjwa ne2% (chikamu chemazana) maleic anhydride yakagadziridzwa EPDM mumisanganiswa neNR inowedzera simba rekugadzirisa kweNR / EPDM mishonga.
9. Gels
Synthetic gels senge SBR kazhinji ine zvinosimbisa. Zvisinei, pakusanganiswa kweSBR mashizha pamatembiricha ari pamusoro pe163 ° C, zvose zvakasununguka gels (zvinogona kusanganiswa kure) uye mageji akaoma (asingagoni kusanganiswa uye asingasviki mune zvimwe zvinonyungudutsngudutsa) anogona kugadzirwa. Mhando mbiri dzegel dzinoderedza kusimba kwesimba rekomboni. Nokudaro, kupisa kwekusanganiswa kweSBR kunofanira kubatwa nekuchenjerera.
10. Vulcanisation
Nzira yakakosha yekuwana yakakwira kusimba kwesimba ndeyekukwidziridza iyo crosslink density, kudzivirira under-sulphurisation, post-vulcanisation uye kudzivirira kuputika kwerabha panguva yevulcanisation nekuda kwekusakwana kumanikidza kana kushandiswa kwezvinhu zvinoputika.
11. Pressure-drop vulcanisation
Kune zvigadzirwa zvakanyungudutswa mu autoclaves, kuumbwa kwemablister uye kukonzeresa kuderedzwa kwesimba rekusimba kunogona kudzivirirwa nekudzikisa zvishoma nezvishoma kudzvanywa kusvika pakupera kwevulcanisation, izvi zvinozivikanwa se 'pressure drop vulcanisation'.
12. Vulcanization nguva uye tembiricha
Nguva refu yevulcanisation pa tembiricha yakadzikira inokonzeresa kuumbwa kwema-multi-sarufa bond network, yakakwira sulfur crosslink density uye nokudaro kusimba kwakakwira.
13. Kusimba kwesimba kunogona kuvandudzwa nemaitiro ekubatanidza ari nani ekuvandudza kupararira kwekusimbisa mafiritsi akadai sekabhoni dema, uchidzivirira kusanganiswa kwetsvina kana zvidimbu zvakakura zvisina kupararira.
14. Fillers
Kune mafirita senge kabhoni dema kana silica, kusarudzwa kwediki diki saizi ine hombe chaiyo nzvimbo inogona kushanda mukuvandudza simba rekusimba. Zvisiri-kusimbisa kana kuzadza mafirita akadai sevhu, calcium carbonate, talc, jecha requartz, nezvimwe zvinofanirwa kudziviswa.
15. Carbon dema
Kuve nechokwadi chekuti kabhoni dema yakapararira zvakanaka, kuzadza kwayo kunofanirwa kuwedzerwa kusvika padanho rakanyanya kuvandudza simba rekusimba. Carbon dema ine diki diki saizi ichave yakaderera optimum yekuzadza huwandu. Kuwedzera iyo chaiyo nzvimbo yekabhoni dema uye kuvandudza kupararira kweiyo kabhoni nhema nekuwedzera iyo yekusanganisa kutenderera kunogona kuvandudza kusimba kwekusimba kwerabha.
16. White carbon black
Iko kushandiswa kweiyo silika yakanyungudutswa ine yakakwira chaiyo nzvimbo yepamusoro inogona kunyatso kuvandudza kusimba kwekusimba kwekomboni.
17. Plasticisers
Plasticisers inofanirwa kudzivirirwa kana yakakwira tensile simba ichidikanwa.
18. Kana vulcanising NBR compounds, vulcanisation yakajairika inonyanya kuoma kuparadzira zvakafanana, saka, sulfuri inobatwa ne magnesium carbonate ichapararira zviri nani mumakomboni epolar seNBR. Kana iyo vulcanising agent isina kupararira zvakanaka, simba rekusimba rinogona kukanganiswa zvakanyanya.
19. Multi-sulphur bonded crosslinking network
Nezvakajairwa vulcanisation system, iyo crosslinking network inotongwa ne polysulphide bond; neEV, iyo crosslinking network inotongwa ne single uye kaviri sulphide zvisungo, izvo zvekare zvichikonzera kusimba kwepamusoro.
20. Ionic crosslinking network
Ionic cross-linked compounds ine simba repamusoro-soro nokuti mapoinzi-akabatanidzwa anogona kutsvedza nekudaro anofamba asina kubvaruka.
21. Stress crystallization
Iko kusanganiswa kwerabha yechisikigo uye neoprene ine kushushikana makristasi mune inonamira ichabatsira kuwedzera kusimba kwesimba.
