SIS(Styrene-isoprene-styrene block copolymer)
Baling Petrochemical SIS ndi styrene - isoprene chipika copolymer mu mawonekedwe a white porous tinthu kapena translucent yaying'ono particle, ndi mbali zabwino thermo-plasticity, mkulu elasticity, zabwino kusungunuka fluidity, kugwirizanitsa bwino ndi tackifying utomoni, otetezeka ndi sanali poizoni.Itha kugwiritsidwa ntchito pa zomatira zotentha zosungunuka, simenti zosungunulira, mbale zosinthira, mapulasitiki ndi masinthidwe a asphalt, ndipo ndizinthu zopangira zomatira zomwe zimagwiritsidwa ntchito popanga matumba onyamula, zinthu zaukhondo, matepi omatira ambali ziwiri ndi zolemba. .
ZINTHU NDI NTCHITO
Styrene-isoprene block copolymers (SIS) ndi voliyumu yayikulu, zotsika mtengo zamalonda za thermoplastic elastomers (TPE) zomwe zimapangidwa ndi moyo ionic copolymerization poyambitsa sequentially styrene, 2-methyl-1,3-butadiene (isoprene), ndi styrene mu reactor. .Zomwe zili mu styrene nthawi zambiri zimasiyana pakati pa 15 ndi 40 peresenti.Ikazizira pansi posungunuka, ma SIS okhala ndi ma styrene otsika amasiyanitsidwa ndi magawo a polystyrene a nano-kakulidwe olowetsedwa mu matrix a isoprene pomwe kuchuluka kwa styrene kumatsogolera ku cylindrical kenako ku lamellar.Madera olimba a styrene amagwira ntchito ngati ma crosslinks omwe amapereka mphamvu zamakina ndikuwongolera kukana kwa abrasion, pomwe matrix a rabara a isoprene amapereka kusinthasintha komanso kulimba.Mawonekedwe a makina a SIS elastomer okhala ndi ma styrene otsika amafanana ndi ma raba owonongeka.Komabe, mosiyana ndi mphira wotenthedwa, ma elastomer a SIS amatha kusinthidwa ndi zida zomwe zimagwiritsidwa ntchito popanga ma polima a thermoplastic.
Ma copolymer a SIS block nthawi zambiri amasakanizidwa ndi ma resin a tackifier, mafuta ndi zodzaza, zomwe zimalola kusinthidwa kosiyanasiyana kwa zinthu zomwe zimapangidwa kapena zimawonjezeredwa ku ma polima ena a thermoplastic kuti apititse patsogolo magwiridwe antchito awo.
Ma copolymer a SIS amagwiritsidwa ntchito kwambiri mu zomatira zamoto, zosindikizira, zida za gasket, mphira, zinthu zoseweretsa, zopangira nsapato ndi zinthu za phula pokonza misewu ndi denga.Amagwiritsidwanso ntchito ngati zosinthira mphamvu ndi zolimbitsa thupi mu mapulasitiki ndi zomatira (zomanga).
Katundu Wakuthupi Wazinthu za Baling SIS (Mtundu Wodziwika)
| Gulu | Kapangidwe | Block Ration S/I | Zambiri za SI% | Tensile Strength Mpa | Hardness Shore A | MFR (g/10min, 200 ℃, 5kg) | Toluene Solution Viscosity pa 25 ℃ ndi 25%, mpa.s |
| Chithunzi cha SIS1105 | Linear | 15/85 | 0 | 13 | 41 | 10 | 1250 |
| Chithunzi cha SIS1106 | Linear | 16/84 | 16.5 | 12 | 40 | 11 | 900 |
| Chithunzi cha SIS1209 | Linear | 29/71 | 0 | 15 | 61 | 10 | 320 |
| Chithunzi cha SIS1124 | Linear | 14/86 | 25 | 10 | 38 | 10 | 1200 |
| Chithunzi cha SIS1126 | Linear | 16/84 | 50 | 5 | 38 | 11 | 900 |
| Mtengo wa SIS 4019 | Wooneka ngati nyenyezi | 19/81 | 30 | 10 | 45 | 12 | 350 |
| Chithunzi cha SIS1125 | Linear | 25/75 | 25 | 10 | 54 | 12 | 300 |
| Chithunzi cha SIS1128 | Linear | 15/85 | 38 | 12 | 33 | 22 | 600 |
| 1125H | Linear | 30/70 | 25 | 13 | 58 | 10-15 | 200-300 |
| 1108 | Kulumikizana kwa mzere | 16/84 | 20 | 10 | 40 | 15 | 850 |
| 4016 | Wooneka ngati nyenyezi | 18/82 | 75 | 3 | 44 | 23 | 500 |
| 2036 | Zosakanizidwa | 15/85 | 15 | 10 | 35 | 10 | 1500 |