| 天然橡胶/氯化聚氯乙烯热塑性弹性体的性能与结构 |
| Structure and Properties of NR/CPVC Thermoplastic Vulcanizate |
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| DOI： |
| 中文关键词: 天然橡胶 氯化聚氯乙烯 热塑性弹性体 性能 结构 |
| 英文关键词: NR CPVC TPV property structure |
| 基金项目: |
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| 摘要点击次数: 926 |
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| 中文摘要: |
| 采用动态硫化法制备天然橡胶(NR)/氯化聚氯乙烯(CPVC)热塑性弹性体(TPV)，并研究甲基丙烯酸缩水甘油酯(GMA)/苯乙烯(St)双单体熔融接枝NR［NR-g-(GMA-co-St)］与白炭黑复配增容补强NR/CPVC TPV的物理性能、耐溶剂性能和微观形态结构。结果表明：当NR-g-(GMA-co-St)和白炭黑的用量分别为7和3份时，交联NR分散相在CPVC基体中的分散度和均一性得到明显改善，相界面的结合强度显著提高，达到良好的复配增容补强效果。与未改性NR/CPVC TPV相比，改性NR/CPVC TPV的拉伸强度、拉断伸长率和撕裂强度增大，耐溶剂性能明显改善。 |
| 英文摘要: |
| The NR/CPVC thermoplastic vulcanizate (TPV) was prepared by dynamic vulcanization method.The physical properties，solvent resistance and microstructure of NR/CPVC TPV filled with NR-g-(GMA-co-St)/silica were investigated.The results showed that，as the addition level of NR-g-(GMA-co-St) and silica were 7 and 3 phr respectively，the dispersion and uniformity of crosslinked NR as the dispersed phase in CPVC matrix were obviously improved，and the interfacial strength between NR and CPVC was significantly increased.Compared with the unmodified NR/CPVC TPV，the tensile strength，tear strength and elongation at break of NR/CPVC TPV modified by NR-g-(GMA-co-St)/silica were increased，and the solvent resistance was improved. |
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