张寒露,曹京宜,胡建海,郑宏鹏,王莹莹,林冰,张海龙,曾树义,唐鋆磊.短切玄武岩纤维增强环氧树脂复合涂层的制备及性能研究[J].表面技术,2023,52(5):149-162.
ZHANG Han-lu,CAO Jing-yi,HU Jian-hai,ZHENG Hong-peng,WANG Ying-ying,LIN Bing,ZHANG Hai-long,ZENG Shu-yi,TANG Yun-lei.Preparation and Properties of Chopped Basalt Fiber Reinforced Epoxy Composite Coatings[J].Surface Technology,2023,52(5):149-162 |
| 短切玄武岩纤维增强环氧树脂复合涂层的制备及性能研究 |
| Preparation and Properties of Chopped Basalt Fiber Reinforced Epoxy Composite Coatings |
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| DOI：10.16490/j.cnki.issn.1001-3660.2023.05.015 |
| 中文关键词: 短切玄武岩纤维 表面改性 复合涂层 界面结合 电化学交流阻抗 |
| 英文关键词:chopped basalt fiber surface modification composite coating interfacial bonding electrochemical impedance spectrum |
| 基金项目:国家自然科学基金(52101076);2021辽宁省博士科研启动基金计划项目(2021-BS-058);四川省重大科技专项项目(2021ZDZX0002);四川省科技计划项目(2021YFSY0055) |
| 作者 | 单位 |
| 张寒露 | 中国人民解放军92228部队，北京 100072 |
| 曹京宜 | 中国人民解放军92228部队，北京 100072 |
| 胡建海 | 西南石油大学 化学化工学院，成都 610500 |
| 郑宏鹏 | 西南石油大学 化学化工学院，成都 610500 |
| 王莹莹 | 江汉大学 光电材料与技术学院，武汉 430056 |
| 林冰 | 西南石油大学 化学化工学院，成都 610500 |
| 张海龙 | 西南石油大学 化学化工学院，成都 610500 |
| 曾树义 | 四川航天拓达玄武岩纤维开发有限公司，四川 达州 635000 |
| 唐鋆磊 | 西南石油大学 化学化工学院，成都 610500 |
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| Author | Institution |
| ZHANG Han-lu | Unit 92228, PLA, Beijing 100072, China |
| CAO Jing-yi | Unit 92228, PLA, Beijing 100072, China |
| HU Jian-hai | School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China |
| ZHENG Hong-peng | School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China |
| WANG Ying-ying | School of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China |
| LIN Bing | School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China |
| ZHANG Hai-long | School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China |
| ZENG Shu-yi | Sichuan Aerospace Tuoda Basalt Fiber Development Co., Ltd., Sichuan Dazhou 635000, China |
| TANG Yun-lei | School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China |
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| 中文摘要: |
| 目的 研究玄武岩纤维/树脂基体界面对涂层性能的影响，通过界面结构的调控提升复合涂层的综合性能。方法 采用酸刻蚀、活化和化学接枝等改性方法处理短切玄武岩纤维，制备短切玄武岩纤维增强环氧复合涂层。通过扫描电子显微镜、硬度测试、摩擦磨损测试、热重分析、电化学测试等方法研究短切玄武岩纤维不同表面改性方法(酸刻蚀、酸刻蚀+化学接枝、活化处理、活化+化学接枝)和添加量对涂层硬度、摩擦磨损性能及腐蚀防护性能的影响。结果 4种表面改性方法均对短切玄武岩纤维的表面活性有提升效果，改善了短切玄武岩纤维与环氧树脂的相容性。其中，活化+化学接枝协同改性的效果最为显著，经过该方法改性后，复合涂层的硬度、耐磨性、耐热性显著提高。与环氧涂层相比，复合涂层的摩擦因数降低了0.113，硬度提高了32.59%，相同温度(320 ℃)下的重量损失降低了5%。同时，复合涂层的耐蚀性也显著增强，浸泡133 d后的涂层阻抗值仍保持1×108 Ω.cm2以上。结论 表面改性使短切玄武岩纤维与环氧树脂之间相容性增强，进而形成了强有力的相互作用与结合，使得环氧涂层的硬度、耐磨性能、耐热性能和腐蚀防护性能显著提升。 |
| 英文摘要: |
| Due to the volatilization of solvent and erosion of waterborne corrosive medium, the diffusion gap of pure epoxy coating inevitably appears, reducing the barrier performance. The addition of inorganic pigment can block the diffusion gap, effectively improve the barrier performance and even the mechanical properties of the composite coating. However, the inorganic pigments without treatment have poor compatibility with resins and obvious tendency to agglomerate. In the composite coating, the resin matrix/pigment interface is an important microstructure which has a crucial influence on the physical, chemical and mechanical properties of the composite coating. The work aims to investigate the effect of the chopped basalt fiber/resin matrix interface on properties of the composite coating, and improve the comprehensive properties of the composite coating through regulating the interface structure by acid etching, activation treatment, chemical grafting and other modification methods. Four surface modification methods were used to modify the chopped basalt fiber surface such as acid etching, acid etching + chemical grafting, activation treatment, activation + chemical grafting. The tensile experiment, friction experiment and electrochemical experiment were conducted to study the hardness, friction and wear properties and corrosion protection properties of epoxy composite coatings. The results showed that the four surface modification methods improved the surface activity of chopped basalt fibers. The data of scanning electron microscopy showed that the change of morphology and increase of roughness were beneficial to the adhesion of fiber/coating interfaces. The data of Fourier transform infrared spectroscopy confirmed the increase of active functional groups —OH and Si—O—Si on the surface of modified chopped basalt fibers. The increase of active functional groups resulted in the improvement of the compatibility and interfacial bonding strength of chopped basalt fiber and epoxy resin. Among the modification methods to the chopped basalt fiber surface, the synergistic modification by two methods (acid etching + chemical grafting or activation + chemical grafting) showed the obvious advantages over the single modification method (acid etching or activation treatment). The method of activation + chemical grafting revealed the optimized modification effect which enhanced the bonding strength of fiber/coating interface, leading to the improvement of mechanical properties, corrosion resistance and anti-aging properties of the epoxy composite coatings. Compared with the epoxy varnish coating, the friction coefficient of the composite coating was reduced by 0.113, the hardness was increased by 32.59%, and the weight loss at the same temperature (320 ℃) was reduced by 5%. The chopped basalt fiber modified by activation + chemical grafting with KH550 endowed the composite coating with the lowest water absorption and porosity after immersion for 105 days and the impedance value above 1×108 Ω.cm2 after 133 days of immersion in the solution of 3.5wt.% NaCl. In summary, the surface modification can increase the compatibility between chopped basalt fiber and epoxy resin, and then form a strong interaction and combination, which improve the mechanical properties, heat resistance and corrosion prevention properties of the epoxy composite coatings. |
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