Incazelo ye-SBS modified asphalt kanye nomlando wayo wokuthuthuka
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Incazelo ye-SBS modified asphalt kanye nomlando wayo wokuthuthuka
Isikhathi Sokukhipha:2024-06-20
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I-asphalt eguquliwe ye-SBS isebenzisa isisekelo setiyela njengempahla eluhlaza, yengeza ingxenye ethile yesilungisi se-SBS, futhi isebenzisa ukugunda, ukunyakazisa nezinye izindlela ukuze ihlakaze ngokulinganayo i-SBS ku-asphalt. Ngasikhathi sinye, ingxenye ethile ye-stabilizer ekhethekile yengezwa ukwenza inhlanganisela ye-SBS. impahla, kusetshenziswa izakhiwo ezinhle zomzimba ze-SBS ukuguqula itiyela.
Ukusetshenziswa kwezilungisi ukulungisa itiyela kunomlando omude emhlabeni jikelele. Maphakathi nekhulu le-19, indlela ye-vulcanization yasetshenziswa ukunciphisa ukungena kwetiyela nokwandisa indawo yokuthambisa. Ukuthuthukiswa kwetiyela elishintshiwe eminyakeni engu-50 edlule sekudlule cishe ezigabeni ezine.
(1) 1950-1960, hlanganisa ngokuqondile i-rubber powder noma i-latex ibe asphalt, hlanganisa ngokulinganayo futhi usebenzise;
(2) Kusukela ku-1960 kuya ku-1970, irabha yokwenziwa ye-styrene-butadiene yahlanganiswa futhi yasetshenziswa endaweni ngendlela ye-latex ngokulingana;
(3) Kusukela ngo-1971 kuya ku-1988, ngaphezu kokuqhubeka nokusetshenziswa kwenjoloba yokwenziwa, izinsalela ze-thermoplastic zazisetshenziswa kabanzi;
(4) Kusukela ngo-1988, i-SBS kancane kancane isiphenduke into ehamba phambili eguquliwe.
Umlando omfushane wokuthuthukiswa kwe-asphalt eguquliwe ye-SBS:
★Ukukhiqizwa okuthuthukisiwe komhlaba kwemikhiqizo ye-SBS kwaqala ngeminyaka yawo-1960.
★Ngo-1963, i-American Philips Petroleum Company yasebenzisa indlela yokuhlanganisa ukuze ikhiqize i-copolymer eqondile ye-SBS okokuqala ngqa, enegama lokuhweba elithi Solprene.
★Ngo-1965, i-American Shell Company yasebenzisa ubuchwepheshe be-ion polymerization engalungile kanye nendlela yokudla elandelanayo enezinyathelo ezintathu ukuze ithuthukise umkhiqizo ofanayo futhi izuze ukukhiqizwa kwezimboni, ngegama lokuhweba elithi Kraton D.
★Ngo-1967, inkampani yaseDutch iPhilips yakha inkanyezi (noma i-radial) umkhiqizo we-SBS.
★Ngo-1973, u-Philips wethula umkhiqizo wenkanyezi we-SBS.
★Ngo-1980, i-Firestone Company yethula umkhiqizo we-SBS obizwa nge-Streon. Okuqukethwe okubophezela kwe-styrene komkhiqizo bekungama-43%. Umkhiqizo wawunenkomba ephezulu yokuncibilika futhi yayisetshenziselwa ikakhulukazi ukuguqulwa kwepulasitiki kanye nezinamatheliso ezincibilikayo ezishisayo. Ngokulandelayo, i-Asahi Kasei Company yase-Japan, I-Anic Company yase-Italy, I-Petrochim Company yaseBelgium, njll. nayo yathuthukisa ngokulandelana imikhiqizo ye-SBS.
★Ngemva kokungena eminyakeni yawo-1990, ngokwandiswa okuqhubekayo kwezinkambu zokufaka izicelo ze-SBS, ukukhiqizwa kwe-SBS emhlabeni kuye kwathuthuka ngokushesha.
★Kusukela ngo-1990, lapho imboni yenjoloba yokwenziwa ye-Baling Petrochemical Company e-Yueyang, eSifundazweni sase-Hunan yakha umshini wokuqala wokukhiqiza we-SBS wezwe okhipha amathani angu-10,000 ngonyaka kusetshenziswa ubuchwepheshe be-Beijing Yanshan Petrochemical Company Research Institute, amandla okukhiqiza e-SBS aseShayina akhule kancane kancane. .