| ENR与PP-MAH双组分相容剂在胶粉增韧废PP材料中的作用研究 |
| Effect of ENR/PP-MAH Two-component Compatibilizer on Waste PP Toughened with Ground Tire |
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| DOI： |
| 中文关键词: 环氧化天然橡胶 马来酸酐接枝聚丙烯 PP 相容剂 胶粉 增韧 |
| 英文关键词: ENR PP-MAH PP compatibilizer ground tire toughening |
| 基金项目:广东省自然科学基金资助项目 |
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| 中文摘要: |
| 以环氧化天然橡胶(ENR)与马来酸酐接枝聚丙烯(PP-MAH)双组分相容剂改性废PP/胶粉体系，探讨了相容作用实施的条件及相容剂的最佳用量配比，并考察了胶粉用量和细度对材料力学性能的影响。结果表明，ENR与胶粉只有先通过机械剪切作用和硫化剂DCP交联作用达到物理化学结合，才能使ENR和PP-MAH双组分相容剂发挥有效的增韧作用；按照最佳工艺和最佳共混条件，PP用量为100份，胶粉为20份，ENR和PP-MAH均为6份时，制得复合材料的冲击强度为14.1 kJ·m-2，拉伸强度为18.5 MPa；冲击断面扫描电镜观察表明，双组分相容剂的加入强化了PP与胶粉的界面相容。 |
| 英文摘要: |
| The effect of the blending procedure，the amount of compatibilizer，and the amount and particle size of ground tire on the physical properties of the waste PP/ground tire composite compatibilized with ENR/PP-MAH (maleic anhydride grafted polypropylene) two-component compatibilizer was investigated.The results showed that the chemico-physical bonding between ENR and ground tire formed through the shearing action and the crosslinking with DCP to make ENR/PP-MAH compatibilizer more effective；the impact strength of the resultant composite was 14.1 kJ·m-2 and its tensile strength was 18.5 MPa when the optimal blending procedure，100 parts of PP，20 parts of ground tire，6 parts of ENR and 6 parts of PP-MAH were used；the compatibility on the boundary between PP and ground tire improved by the addition of two-component compatibilizer from the view of SEM on the impact cross-section. |
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