| 硅烷偶联剂KH550改性生物基PA56纤维及其与橡胶材料的粘合性能研究 |
| Silane Coupling Agent KH550 Modified Bio-Based PA56 Fiber and Its Adhesion Performance with Rubber Material |
| 投稿时间：2024-10-11 修订日期：2024-10-11 |
| DOI：10.12136/j.issn.1000-890X.2026.08.0563 |
| 中文关键词: 生物基PA56纤维 表面改性 硅烷偶联剂 橡胶材料 界面粘合性能 |
| 英文关键词: bio-based PA56 fiber surface modification silane coupling agent rubber material interfacial adhesion performance |
| 基金项目:国家自然科学基金资助项目（52588201） |
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| 中文摘要: |
| 采用硅烷偶联剂KH550（以下简称KH550）对生物基PA56纤维（以下简称PA56纤维）进行表面改性，将改性后的PA56纤维进行RFL浸渍处理，制备改性PA56纤维/橡胶复合材料，研究KH550改性对PA56纤维的化学结构、微观形貌、热稳定性、拉伸性能以及与橡胶材料的界面粘合性能的影响。结果表明：KH550可以成功接枝在PA56纤维表面，与未改性PA56纤维相比，KH550改性PA56纤维的断裂强度不变，断裂伸长率明显增大；随着KH550质量分数的增大，RFL浸渍PA56纤维的附胶量和PA56纤维/橡胶复合材料的H抽出力均呈现先增大后减小的趋势；当KH550质量分数为5%时，PA56纤维/橡胶复合材料的H抽出力为134.84 N，比未改性PA56纤维/橡胶复合材料增大35%，即KH550表面改性可以显著提高PA56纤维与橡胶材料之间的界面粘合性能。 |
| 英文摘要: |
| The surface modification of bio-based PA56 fiber（hereinafter referred to as PA56 fiber） was carried out by using silane coupling agent KH550（hereinafter referred to as KH550），and the modified PA56 fiber was impregnated with RFL，and then modified PA56 fiber/rubber composites were obtain，the effects of KH550 modification on the chemical structure，microscopic morphology，thermal stability，tensile properties and interfacial adhesion performance with rubber material were studied.The results showed that KH550 could be successfully grafted onto the surface of PA56 fiber.Compared with unmodified PA56 fiber，the modified PA56 fiber had unchanged tensile strength but a significant increase in elongation at break.As the increase of KH550 mass fraction，the dip pick-up of RFL impregnated PA56 fiber and the H-pullout force of PA56 fibers/rubber composite showed a trend of first increasing and then decreasing.When the mass fraction of KH550 was 5%，the H-pullout force of PA56 fiber/rubber composite was 134.84 N，which was 35% higher than that of unmodified PA56 fiber/rubber composite，this indicated that the surface modification with KH550 could significantly improve the interfacial adhesion performance between PA56 fiber and rubber material. |
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