SBS (styrene –butadiene block copolymer)
UMUTUNGO N'UBUSABWA
Styrene-butadiene block copolymers nicyiciro cyingenzi cya rubber.Ubwoko bubiri bukunze kugaragara ni umurongo hamwe na radiyo ya triblock copolymers ifite reberi ya reberi hamwe na polystirene.SBS elastomers ihuza imiterere ya resmoplastique hamwe na reberi ya butadiene.Ibice bikomeye, ibirahuri bya styrene bitanga imbaraga zumukanishi kandi bigateza imbere kurwanya abrasion, mugihe reberi yo hagati itanga ubworoherane no gukomera.
Muri byinshi, elastomers ya SBS ifite stirene nkeya ifite imitungo isa niy'ibikoresho bya reberi ya butadiene ariko birashobora kubumbabumbwa no gusohora hakoreshejwe ibikoresho bisanzwe byo gutunganya thermoplastique.Nyamara, SBS ntishobora kwihanganira kuruta imiti ya butadiene ya chimique ihujwe (volcanised) bityo rero, ntishobora gukira neza muburyo bwo guhindura ibintu nka elastomers ya diene.
Rubber ya SBS ikunze kuvangwa nizindi polymers kugirango zongere imikorere yabo.Akenshi amavuta niyuzuza byongewe kubiciro buke no kurushaho guhindura imitungo yabo.
Gusaba
SBS ikoreshwa mu nganda nyinshi zitandukanye:amamodoka, guhindura bitumen, HIPS, inkweto zinkweto hamwe na masterbatch.Rubber ya sintetike ikunzwe cyane kuruta reberi karemano kuko iri hejuru mubyera kandi byoroshye kubyitwaramo.Kimwe mu bicuruzwa by'ibanze bya BassTech, styrene-butadiene styrene (SBS), ni reberi isanzwe ikoreshwa mu nganda.
1. Styrene-butadiene styrene ishyirwa mubikorwa bya elastomer ya termoplastique.
Nka thermoplastique elastomer, SBS itunganywa byoroshye kandi igasubirwamo iyo ishyushye.Iyo ushyushye, ikora nka plastiki kandi irakora cyane.Imiterere yacyo (guhagarika copolymer hamwe n'iminyururu ibiri ya polystirene) itanga uburyo bwo guhuza ibintu bikomeye bya plastiki na elastique.
2. Ugereranije na reberi gakondo yibirunga, ukoresheje styrene-butadiene styrene irashobora gufasha kugabanya ibiciro byumusaruro.
Irashobora gukoreshwa, irwanya abrasion kandi ntisaba ibirunga.SBS irashaje neza kandi ntabwo yambara byoroshye, bigabanya gukenera gusanwa no kuyigira igiciro cyinshi cyibicuruzwa byo hejuru.
3. Styrene-butadiene styrene irakwiriye cyane kubisenge.
SBS ikoreshwa cyane mubikorwa byo gusakara nko guhindura bitumen, ibikoresho bya kashe byamazi hamwe nudukingirizo twamazi.Mu bushyuhe bukonje, SBS ikomeza gukomera, guhinduka no kurwanya ubushuhe.Usibye gusakara, SBS ikoreshwa mugushiraho amabuye, kashe hamwe no gutwikira kugirango hongerwe ubukonje kandi bigabanye gukwirakwiza kwangiza.Nka modifike ya asfalt, SBS irinda ibinogo nibisasu biterwa no guhinda umuriro.
4. Styrene-butadiene styrene nibikoresho bizwi cyane kubakora inkweto.
SBS nigikoresho cyiza mugukora inkweto kubwimpamvu nyinshi zituma biba byiza kubisenge.Mubirenge byinkweto, styrene-butadiene styrene igira uruhare mubicuruzwa bikomeye ariko byoroshye bishobora kutagira amazi.
Ibyingenzi Byumubiri Byiza bya Baling SBS Ibicuruzwa
| Icyiciro | Imiterere | S / B. | Umujinya Imbaraga Mpa | Gukomera Inkombe A. | MFR (g / 10min, 200 ℃, 5kg) | Umuti wa Toluene Viscosity kuri 25 ℃ na 25%, mpa.s. |
| YH-792 / 792E | Umurongo | 38/62 | 29 | 89 | 1.5 | 1.050 |
| YH-791 / 791E | Umurongo | 30/70 | 15 | 70 | 1.5 | 2,240 |
| YH-791H | Umurongo | 30/70 | 20 | 76 | 0.1 | |
| YH-796 / 796E | Umurongo | 23/77 | 10 | 70 | 2 | 4.800 |
| YH-188 / 188E | Umurongo | 34/66 | 26 | 85 | 6 | |
| YH-815 / 815E | Ifite inyenyeri | 40/60 | 24 | 89 | 0.1 | |
| Guhindura umuhanda -2 # | Ifite inyenyeri | 29/71 | 15 | 72 | 0.05 | 1,050 * |
| YH-803 | Ifite inyenyeri | 40/60 | 25 | 92 | 0.05 | |
| YH-788 | Umurongo | 32/68 | 18 | 72 | 4-8 | |
| YH-4306 | Ifite inyenyeri | 29/71 | 18 | 80 | 4-8 |
Icyitonderwa: Ikintu cyanditswemo * ni viscosity ya 15% yumuti wa toluene.
“E” yerekana ibicuruzwa bitangiza ibidukikije.