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Thermoplastic elastomer is a new kind of polymer material between rubber and resin, which can not only replace part of rubber, but also modify plastics. The thermoplastic elastomer has the dual properties and broad characteristics of rubber and plastic, so that it is widely used in the rubber industry to manufacture rubber shoes, rubber cloth and other daily products and rubber hose, tape, rubber strip, rubber sheet, rubber parts and adhesives and other industrial supplies. At the same time, thermoplastic elastomers can also replace rubber in a large number of general thermoplastic resins such as PVC, PE, PP, PS and even PU, PA, CA and other engineering plastics modification above, so that the plastics industry has also appeared a new situation.
Technical parameters of SBS thermoplastic elastomer 791:
|
Structure |
Linear |
|
Styrene Content(%) |
38 |
|
Volatile Matter(%) |
≤1.0 |
|
Ash Content(%) |
≤0.20 |
|
300% Stretching Strength(Mpa) |
≥3.5 |
|
Tensile Strength(Mpa) |
≥24 |
|
Elongation(%) |
≥700 |
|
Permanent Set(%) |
≤55 |
|
Hardness(Shore A) |
≥85 |
|
MFR @ 200°C, 5Kg(g/10min) |
0.1~5.0 |
|
Toluene Solution Viscosity@(25℃ & 25%)(mPa·s) |
850~1850 |
|
Yellow Index |
≤7.0 |
|
Appearance |
White porous particle |
SBS belongs to styrene thermoplastic elastomers, styrene-butadiene-styrene block copolymer, known as thermoplastic styrene butadiene block copolymer or thermoplastic styrene butadiene rubber. The appearance of SBS is white or light yellow porous round or wafer shaped small particles, with a relative density of 0.92 ~ 0.95. SBS has good tensile strength, elastic and electrical properties, small permanent deformation, good flexural and resilience, and large surface friction. Resistance to ozone, oxygen and ultraviolet radiation is similar to styrene-butadiene rubber, excellent permeability, low temperature resistance and wet slip resistance. Because the main chain contains double bonds, resulting in poor aging resistance of SBS, under the condition of high temperature air oxidation, butadiene blocks will occur crosslinking, thus increasing the hardness and viscosity. SBS is soluble in benzene, toluene, dichloromethane, dichloroethane, insoluble in water, ethanol, solvent gasoline, etc.
Use of SBS thermoplastic elastomer:
Applications for this product include:
1, rubber products
2, resin modifier
3. Adhesive
4. Asphalt modifier
Packaging specifications of SBS thermoplastic elastomer:
Kraft paper bag, inner high pressure polyethylene film, net weight 20kg packing.
Storage and protection of SBS thermoplastic elastomers:
This product should be stored in a cool, dry, ventilated warehouse, transport to prevent the sun and rain, storage period of one year.
We can supply Petroleum Resin, PVC Resin, PET Resin, PVB Resin, PP Resin, PVA Resin.
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