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Zvidimbu zverabha zvinogona kuwanikwa kubva kuzvinhu zviviri zvikuru: rabha yechisikigo uye rabha yekugadzira.

Zvidimbu zverabha zvechisikigo zvinonyanya kubva mulatex yemuti weHevea brasiliensis, unobva kuBrazil asi ikozvino unorimwa zvakanyanya munyika dzeSoutheast Asia dzakadai seMalaysia neIndonesia. Kana bark remuti rachekwa, latex, mvura chena yakaita semukaka, inobuda. Latex iyi ine inenge chikamu chimwe muzvitatu chemvura uye chikamu chimwe muzvitatu chezvidimbu zverabha mu colloidal suspension. Zvidimbu izvi zvinoumbwa mukati memasero akagadzirwa ne latex anonzi laticifers. Rabha iri mu latex ipolymer ye isoprene, ine fomura yemakemikari (C₅H₈)ₙ. Mushure mekuunganidzwa, latex inogadziriswa kuti iparadzanise uye inatsiridze zvidimbu zverabha.

Zvidimbu zverabha zvakagadzirwa nevanhu, kune rumwe rutivi, zvinogadzirwa nemiti yemakemikari. Mapetrochemicals anoshanda sezvinhu zvekutanga. Semuenzaniso, neoprene (polychloroprene) inogadzirwa nekuita acetylene uye hydrochloric acid. Emulsion styrene - butadiene rabha (E - SBR), inoshandiswa zvakanyanya mumatayi emotokari, ndeimwe mhando yekugadzira. Maitiro aya anosanganisira kuita polymerization pasi pemamiriro chaiwo ekugadzira mapolymer ane hunhu hwakafanana nerabha, ayo anozogadziriswa kuita zvidimbu.

Kuwedzera kune rabha isina kugadzirwa, rabha yakadzokororwa zvakare inzvimbo yakakosha yezvikamu zverabha. Marara akadai sematayi akamboshandiswa, zvigadziko zverabha, nezvimwe zvigadzirwa zverabha zvinounganidzwa. Anochekwa-chekwa, anokuyiwa, uye anogadziriswa kuti pave nezvimedu zverabha.


Nguva yekutumira: Chikumi-23-2025