张伟钢,曾银伍.石墨烯对聚氨酯/Al复合涂层光泽度及红外发射率性能的影响[J].表面技术,2017,46(12):175-178.
ZHANG Wei-gang,ZENG Yin-wu.Effects of Graphene on Glossiness and Infrared Emissivity of Polyurethane/Al Composite Coating[J].Surface Technology,2017,46(12):175-178 |
| 石墨烯对聚氨酯/Al复合涂层光泽度及红外发射率性能的影响 |
| Effects of Graphene on Glossiness and Infrared Emissivity of Polyurethane/Al Composite Coating |
| 投稿时间：2017-06-25 修订日期：2017-12-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2017.12.028 |
| 中文关键词: 复合涂层 石墨烯 光泽度 红外发射率 力学性能 |
| 英文关键词:composite coating graphene glossiness infrared emissivity mechanical properties |
| 基金项目:安徽省高校自然科学研究重点项目（KJ2016A535）；滁州学院科研项目（2015PY02）；滁州学院科研启动基金项目（2015qd15）；滁州学院绿色化工与核心技术创新平台 |
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| 中文摘要: |
| 目的 在不明显升高聚氨酯（PU）/Al复合涂层红外发射率的前提下，明显降低涂层的光泽度，获得低光泽与低发射率兼容的功能涂层。方法 采用石墨烯改性PU/Al复合涂层，系统研究石墨烯改性对涂层的微结构、光泽度、红外发射率及力学性能的影响规律，并对其成因进行分析探讨。结果 当石墨烯添加量（占Al粉质量的百分比）小于6%时，石墨烯改性可明显降低涂层的光泽度，且对涂层发射率的影响不明显。当石墨烯添加量为4%时，可使涂层同时具备低光泽与低发射率性能，其值分别为11.0和0.245。涂层的力学性能对石墨烯改性并不敏感，改性前后涂层的硬度、附着力和耐冲击强度分别可达到3H，1级和50 kg•cm。结论 石墨烯改性可明显降低PU/Al复合涂层的光泽度。当石墨烯添加量合适时，可使涂层同时具备低光泽与低发射率性能，从而实现涂层的红外与可见光兼容隐身。 |
| 英文摘要: |
| The work aims to obtain low glossiness and low emissivity compatible functional coatings by significantly reducing glossiness of polyurethane (PU)/Al composite coatings while not significantly increasing infrared emissivity of the coating, and. PU/Al composite coatings were modified by graphene, the effects of graphene modification on microstructure, glossiness, infrared emissivity and mechanical properties of the coatings were investigated systematically, and finally the causes were discussed. When the addition amount of graphene (the percentage it accounts for aluminum powder mass) was below 6%, graphene modification could significantly reduce the glossiness of coating, but it had no obvious effect on the emissivity of coating. When the addition amount of graphene was 4%, graphene modification could endow the coatings with low glossiness and emissivity simultaneously (1.0 and 0.245, respectively). The mechanical properties of coatings were not sensitive to the graphene modification, and hardness, adhesion and impact strength of the coatings before and after modification could reach 3H, Grade 1 and 50 kg•cm, respectively. The graphene modification can significantly reduce glossiness of the PU/Al composite coating. When proper amount of graphene is added, the coatings can have low glossiness and low emissivity properties simultaneously, so as to realize infrared and visible light compatible stealth of the coating. |
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