Roba na zahiri shine fili na zahiri tare da polyisoprene a matsayin babban bangaren. Tsarin kwayar halitta shine (C5h8) n. Kashi 91% zuwa 94% na abubuwan da aka gyara na roba (polyisoprene), kuma sauran abubuwan roba, sugars, sugars, sugars, sugars ne suka fi so.
Haɗin roba: roba mai ban sha'awa yana nufin cewa abun cikin roba na halitta shine 95%-upadelide roba, da kuma etop optide, carbon baƙar fata, an ƙara baƙar fata, carbon baƙar fata, an ƙara baƙi. Refoled fili roba.
Sunan Sinawa: roba roba
Sunan Turanci: roba roba
Ma'anar: abu mai yawa na roba tare da rashin nutsuwa dangane da mahaɗan polymer na ruwa.
●Rarrabuwa na roba
Roba yafi kasu kashi uku: roba na zahiri, roba mai narkewa, da kuma roba roba.
Daga gare su, roba na halitta da roba mai zurfi sune nau'ikan nau'ikan da muke shigowa dasu a halin yanzu; Rubutun roba yana nufin waɗanda aka samu daga man fetur, don haka ba za mu ɗauki lokaci ba.
Roba na zahiri (dabi'a roba) yana nufin roba da aka yi daga tsire-tsire na roba-sperting. An sanya roba mai yawa ta hanyar haɗa roba na halitta tare da ɗan ƙaramin roba da wasu samfuran sunadarai.
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Roba na zahiri ya kasu kashi ɗaya na roba mai launin roba bisa ga tsarin masana'antu daban-daban. Standary roba mai daidaitaccen roba ne. Misali, ma'aunin roba na kasar Sin yana da daidaitaccen roba na kasar Sin, an taƙaita azaman Scr, kuma kamar haka akwai SVR, str, Smr da sauransu.
Standard Manne kuma yana da maki daban-daban, kamar svr3l, svr 5, svr10, SVR20, SVR2, SVR 50 ... da sauransu.; Dangane da girman lambar, mafi girma lambar, mafi muni da inganci; Karamin lambar, mafi kyawun ingancin (mafi mahimmanci don rarrabe tsakanin kyakkyawan da mugunta shine ash da mai ba da izinin samfurin, ƙasa da ƙasa, mafi kyawun ƙimar).
Kyafaffen takardar manne ne da ribbed mai, wanda ke nufin wani bakin ciki na roba mai ƙanshi, share shi kamar RSS. Wannan ragewa ya bambanta da matsayin manne, kuma ba a rarraba shi gwargwadon wurin samarwa ba, kuma kalmar iri ɗaya ne a samarwa.
Hakanan akwai wasu bambaye daban-daban na manne ne mai launi, RSS1, RSS4, RSSS5, iri ɗaya ne, RSS1 kuma shine mafi kyawun inganci, RSS5 shine mafi kyawun inganci.
● Haɗin roba
An yi shi ne ta hanyar haɗawa da sake fasalin roba na zahiri tare da ɗan ƙaramin roba da wasu samfuran sunadarai. Mafi yawan amfani da roba da aka fi amfani da su shine wannan, kamar su na roba roba smr 67% Smr 20 (smrene na zamani) + 0.5% staric acid).
Roba na fili ya dogara da roba na halitta wanda ya ƙunshi babban aikinta. Ana kiranta fili. Kamar yadda ke sama, babban bangaren SMR 20, saboda haka ana kiran shi Malaysia No. 20 madaidaicin ƙwayar roba; Akwai kuma fili takardar shayi da daidaitaccen roba na ɓoye.
Lokaci: Nuwamba-17-2021
