| Compression Mullins Effect and Reversibility of ABS/NBR TPV |
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| DOI： |
| Key Words: ABS；NBR；thermoplastic vulcanizate；compression Mullins effect；reversibility |
| Author Name | Affiliation | | WEI Dongya | Qingdao University of Science & Technology | | HE Ning | Qingdao Institute of Products Quality Supervision and Inspection | | WANG Zhaobo | Qingdao University of Science & Technology |
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| Abstract: |
| The compression Mullins effect and reversibility of thermoplastic vulcanizate（TPV） based on acrylonitrile-butadiene-styrene terpolymer（ABS）/nitrile butadiene rubber（NBR） blends were investigated.It was found that NBR with dimension of 10～15 μm was dispersed evenly in the surface of TPV.The Mullins effect of TPV was clear during uniaxial loading-unloading cycles，the maximum stress，internal friction and loss factor（tanδ） of TPV under the fixed strain level showed the highest values at the first cycle, respectively, and they decreased obviously at the second cycle and continued to decrease, but only slightly, in the following cycles.When the number of the compression cycle increased，the instantaneous residual deformation and stress softening factor（DS） increased.With the compression strain increasing，the maximum stress，instantaneous residual deformation，internal friction and tanδ of TPV increased obviously，and DS decreased.The maximum compression stress reversibility of TPV during the second compressionwas improved with the heat treatment temperature increasing，and the best performance was achieved at 110 ℃. |
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