| Study on Compression Set of SEBS/PP TPE |
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| DOI： |
| Key Words: hydrogenated styrene-butadiene-styrene block copolymer；polypropylene；thermoplastic elastomer；compression set |
| Author Name | Affiliation | | LI Shanliang | Unitek Thermoplastic Elastomer Co.，Ltd |
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| Abstract: |
| The effects of the blending ratio of main materials，and the addition level of paraffin oil，calcium carbonate，vinyl acrylic resin on the properties of hydrogenated styrene-butadiene-styrene block copolymer（SEBS）/polypropylene（PP） thermoplastic elastomer（TPE） were investigated.The results showed that，as SEBS/PP blending ratio decreased，the Shore A hardness and compression set of TPE increased.When the addition level of paraffin oil was 70 phr，the tensile strength of TPE was at the maximum and the compression set was at the minimum.As the addition level of calcium carbonate increased，the compression set of TPE decreased.Vinyl acrylic resin could reduce the compression set of TPE，and minimum compression set was obtained at 3 phr vinyl acrylic resin. |
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