SIS(Styrene-isoprene-styrene block copolymer)
Baling Petrochemical SIS is styrene - isoprene block copolymer muchimiro chewhite porous particle kana translucent compact particle, ine maficha ezvakanaka thermo-plasticity, yakakwirira elasticity, yakanaka kunyunguduka fluidity, kuenderana kwakanaka netackifying resin, yakachengeteka uye isina chepfu.Inogona kuiswa kune inopisa-yakanyunguduka inomira-inonzwa inonamira, inonyungudutsa simende, inochinjika kudhinda mahwendefa, mapurasitiki uye asphalt gadziriso, uye ndiyo yakanakisa mbishi yekunamatira inoshandiswa kugadzira mabhegi ekurongedza, zvehutsanana, matepi ane mativi maviri anonamira uye mavara. .
PROPERTIES AND APPLICATIONS
Styrene-isoprene block copolymers (SIS) ihombe vhoriyamu, yakaderera mutengo yekutengesa thermoplastic elastomers (TPE) iyo inogadzirwa nekurarama ionic copolymerization nekutevera kuunza styrene, 2-methyl-1,3-butadiene (isoprene), uye styrene mu reactor. .Zvinyorwa zve styrene zvinowanzosiyana pakati pe15 ne40 muzana.Kana yatonhodzwa pazasi pekunyungudika, maSIS ane yakaderera styrene yemukati chikamu-yakapatsanurwa kuita nano-saizi polystyrene spheres akaiswa mune isoprene matrix nepo kuwedzera kweiyo styrene content inotungamira kune cylindrical uyezve kune lamellar zvimiro.Iyo yakaoma styrene domains inoshanda seyemuviri crosslinks inopa simba remagetsi uye inovandudza abrasion kuramba, nepo isoprene rubber matrix inopa kushanduka uye kuoma.Iwo ma mechanic properties eSIS elastomers ane low styrene content akafanana neeya vulcanized rubbers.Nekudaro, kusiyana nerabha ine vulcanized, SIS elastomers inogona kugadziriswa nemidziyo inoshandiswa kugadzira thermoplastic polymers.
SIS block copolymers anowanzo kusanganiswa netackifier resin, oiri uye mafirita, ayo anobvumira kuchinjika kwakasiyana-siyana kwezvivakwa zvechigadzirwa kana ivo vanowedzerwa kune mamwe thermoplastic mapolymers kuti vawedzere kuita kwavo.
MaSIS copolymers anoshandiswa zvakanyanya mukunamira hotmelt, sealants, gasket zvinhu, mabhendi erabha, zvigadzirwa zvematoyi, sosi dzeshangu uye mune zvigadzirwa zvebhitumini zvekugadzira migwagwa uye denga rekushandisa.Iwo zvakare anoshandiswa seanokanganisa modifiers uye tougheners mumapurasitiki uye (yakarongeka) anonamira.
Main Physical Properties yeBaling SIS Zvigadzirwa (Yakajairika Kukosha)
| Giredhi | Chimiro | Block Ratio S/I | SI Content % | Tensile Simba Mpa | Hardness Shore A | MFR (g/10min, 200℃, 5kg) | Toluene Solution Viscosity pa 25℃ uye 25%, mpa.s |
| SIS 1105 | Linear | 15/85 | 0 | 13 | 41 | 10 | 1250 |
| SIS 1106 | Linear | 16/84 | 16.5 | 12 | 40 | 11 | 900 |
| SIS 1209 | Linear | 29/71 | 0 | 15 | 61 | 10 | 320 |
| SIS 1124 | Linear | 14/86 | 25 | 10 | 38 | 10 | 1200 |
| SIS 1126 | Linear | 16/84 | 50 | 5 | 38 | 11 | 900 |
| SIS 4019 | Yakafanana nenyeredzi | 19/81 | 30 | 10 | 45 | 12 | 350 |
| SIS 1125 | Linear | 25/75 | 25 | 10 | 54 | 12 | 300 |
| SIS 1128 | Linear | 15/85 | 38 | 12 | 33 | 22 | 600 |
| 1125H | Linear | 30/70 | 25 | 13 | 58 | 10-15 | 200-300 |
| 1108 | Coupling linear | 16/84 | 20 | 10 | 40 | 15 | 850 |
| 4016 | Yakafanana nenyeredzi | 18/82 | 75 | 3 | 44 | 23 | 500 |
| 2036 | Mixed | 15/85 | 15 | 10 | 35 | 10 | 1500 |