| 运动场地用EPDM颗粒高聚物含量的测试方法对比 |
| Comparison of Testing Methods for Polymer Contents of EPDM Particles Used in Sport Grounds |
| 投稿时间：2024-07-12 修订日期：2024-08-01 |
| DOI：10.12136/j.issn.1000-890X.2026.07.0542 |
| 中文关键词: 合成材料运动场地 EPDM颗粒 高聚物含量 热重法 溶剂抽提法 组合测试法 |
| 英文关键词: synthetic material sport ground EPDM particle polymer content TG method solvent extraction method combination testing method |
| 基金项目: |
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| 中文摘要: |
| 对10个运动场地用三元乙丙橡胶（EPDM）颗粒样品分别按GB/T 14837.1—2014和GB/T 14837.2—2014热重（TG）法（分别简称TG1法和TG2法）测试有机物含量，分别按GB/T 3516—2006的溶剂抽提A法和溶剂抽提B法（分别简称抽提A法和B法）测试溶剂抽出物含量，以及采用4种组合测试法测试高聚物含量。结果表明：与TG2法相比，TG1法可保证EPDM颗粒中EPDM充分分解，且能有效避免EPDM颗粒中其他成分的干扰；与抽提A法相比，抽提B法不仅效率高、抽出充分，还可能发现样品异常；测试EPDM颗粒高聚物含量时，采用TG1法和抽提B法的组合测试法为最佳选择。 |
| 英文摘要: |
| For 10 samples of ethylene propylene diene monomer rubber（EPDM） particle used in sport grounds，the organic contents were tested according to GB/T 14837.1—2014 and GB/T 14837.2—2014 thermogravimetric（TG） methods（referred to as TG1 method and TG2 method respectively），the solvent extraction contents were tested according to GB/T 3516—2006 solvent extraction A method and solvent extraction B method（referred to as extraction A method and B method respectively），and the polymer contents were tested using four combination testing methods.The results showed that compared to TG2 method，TG1 method ensured complete decomposition of EPDM in EPDM particle and effectively avoided interference from other components in EPDM particles.Compared to extraction A method，extraction B method not only demonstrated higher efficiency and thorough extraction，but also had a certain possibility of discovering sample abnormalities.When testing the polymer content of EPDM particles，the combination testing method of TG1 method and extraction B method was found to be the optimal choice. |
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