SEBS (Styrene Ethylene Butylene Styrene)
STYRENE-ETHYLENE-BUTYLENE-STYRENE THERMOPLASTIC ELASTOMER (SEBS)
UMUTUNGO N'UBUSABWA
Styrene-Ethylene-butylene-styrene, izwi kandi ku izina rya SEBS, ni elastomer ikomeye ya termoplastique (TPE) yitwara nka reberi itiriwe ikorerwa volcanisation.SEBS irakomeye kandi ihindagurika, ifite ubushyuhe buhebuje kandi irwanya UV kandi byoroshye kuyitunganya.Ikorwa na hydrogenating igice kandi itoranya ya styrene-butadiene-styrene copolymer (SBS) iteza imbere ubushyuhe bwumuriro, ikirere nikirinda amavuta, kandi bigatuma SEBS ikora neza.Nyamara, hydrogenation nayo igabanya imikorere yubukanishi kandi ikongera igiciro cya polymer. .
SEBS elastomers ikunze kuvangwa nizindi polymers kugirango zongere imikorere yabo.Zikoreshwa nkimpinduka zingaruka zubushakashatsi bwa thermoplastique kandi nka flexibilizers / tougheners kuri polypropilene isobanutse (PP).Akenshi amavuta niyuzuza byongewe kubiciro buke na / cyangwa kugirango uhindure ibintu.Porogaramu zingenzi zirimo ibishishwa bishyushye byoroshye, ibicuruzwa bikinisha, inkweto, hamwe na TPE yahinduwe na bitumen yo gutunganya umuhanda no gusakara.
Styrenics, cyangwa styrenic block copolymers nizo zikoreshwa cyane muri TPE zose.Bahuza neza nibindi bikoresho kimwe nuwuzuza nabahindura.SEBS (styrene-ethylene / butylene-styrene) irangwa na domaine ikomeye kandi yoroshye murwego rwa polymer.Impera-yanyuma ni kristaline styrene mugihe hagati-blocs yoroshye ya Ethylene-butylene.Ku bushyuhe bwinshi ibyo bikoresho byoroshe kandi bigahinduka amazi.Iyo ikonje, imirongo ihurira kuri styrene ya nyuma-igizwe na cross-ihuza umubiri kandi igatanga reberi nka elastique.Kwemeza no kwemeza FDA bituma SEBS ihitamo neza kubisaba byohejuru.
SEBS irashobora kunoza imikorere mubikorwa byumuvuduko hamwe nibindi bifata.Bimwe mubisanzwe bikunze gukoreshwa harimo kaseti zitandukanye, ibirango, plaster, ibiti byubaka, imyambaro yubuvuzi, kashe, kashe hamwe n’irangi ryerekana umuhanda.
SEBS irashobora guhuzwa kugirango itange ibikoresho bitezimbere gufata, kumva, kugaragara no korohereza porogaramu zitandukanye.Imikino n'imyidagaduro, ibikinisho, isuku, gupakira, imodoka, hamwe nibikoresho bya tekiniki byakozwe kandi bisohotse ni zimwe mu ngero zisanzwe.
SEBS irashobora gukoreshwa hamwe nuzuza ibintu bitandukanye.Abavangavu bazongeramo ibyo byuzuza niba byongerewe amavuta, kugabanya ibiciro, kunoza isura nziza, cyangwa gutuza byongeye birakenewe hejuru ya SEBS.
Birashoboka kuzuza cyane SEBS ni amavuta.Aya mavuta azatorwa bitewe nibisabwa byihariye.Ongeramo amavuta yimpumuro yoroshya ibice bya PS ukoresheje plastike igabanya ubukana nibintu bifatika.Amavuta atuma ibicuruzwa byoroha kandi bikora nkibikoresho byo gutunganya.Amavuta ya paraffinike arahitamo kuko arahuza cyane na EB center ya blok.Amavuta ya Aromatic muri rusange yirindwa kuko yinjira muri plastike ya polystirene.
SEBS irashobora kuzamura porogaramu nyinshi za styrene, firime, imifuka, kurambura firime no gupakira.Bashobora kunoza imikorere ya polyolefine kugirango ikoreshwe mubushyuhe bukabije, kunoza neza no kurwanya ibishushanyo, no kongera ubworoherane.
Ibyingenzi byingenzi bya buri cyiciro cyibicuruzwa bya SEBS (Agaciro gasanzwe)
| Icyiciro | Imiterere | Guhagarika igipimo | 300% Kurambura Imbaraga MPa | Imbaraga Zimbaraga MPa | Elonga tion% | Gushiraho% | Inkombe Ikomeye A. | Umuti wa Toluene Viscosity kuri 25 ℃ na 25%, mpa.s. |
| YH-501 / 501T | Umurongo | 30/70 | 5 | 20.0 | 490 | 24 | 76 | 600 |
| YH-502 / 502T | Umurongo | 30/70 | 4 | 27.0 | 540 | 16 | 73 | 180 |
| YH-503 / 503T | Umurongo | 33/67 | 6 | 25.0 | 480 | 16 | 74 | 2.300 |
| YH-504 / 504T | Umurongo | 31/69 | 5 | 26.0 | 480 | 12 | 74 | |
| YH-561 / 561T | Bivanze | 33/67 | 6.5 | 26.5 | 490 | 20 | 80 | 1.200 |
| YH-602 / 602T | Ifite inyenyeri | 35/65 | 6.5 | 27.0 | 500 | 36 | 81 | 250 |
| YH-688 | Ifite inyenyeri | 13/87 | 1.4 | 10.0 | 800 | 4 | 45 | |
| YH-604 / 604T | Ifite inyenyeri | 33/67 | 5.8 | 30.0 | 530 | 20 | 78 | 2200 |
Icyitonderwa: Igisubizo cya toluene viscosity ya YH-501 / 501T ni 20%, naho iyabandi ni 10%.
“T” bisobanura amazi yanduye.