A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Microcapsule powder for cement-based pavement self-repairing and preparation method thereof
The invention discloses microcapsule powder for self-repairing of a cement-based pavement and a preparation method of the microcapsule powder, and belongs to the technical field of pavement repairing. The microcapsule powder comprises a capsule core and a capsule wall, the capsule core is high-cohesiveness and high-toughness nano modified epoxy resin, and the capsule wall is made of high-viscosity and high-toughness nano modified epoxy resin; the high-cohesiveness and high-toughness nano modified epoxy resin is prepared from the following raw materials: nano silica fume, superelastic alloy nano micro-springs, household garbage nano biochar, a diluent and liquid crystal epoxy resin. The preparation method comprises the following steps: preparing the high-performance urea-formaldehyde resin; preparing a high-cohesiveness and high-toughness nano modified epoxy resin emulsion; the preparation method comprises the following steps: dropwise adding the high-cohesiveness and high-toughness nano-modified epoxy resin emulsion into high-performance urea-formaldehyde resin, carrying out an emulsion reaction, adjusting the pH value to be acidic, carrying out a condensation polymerization reaction, then carrying out a cross-linking curing reaction, and drying to obtain the microcapsule powder for cement-based pavement self-repairing. The modulus of the capsule core can be effectively reduced, the flexibility and cohesiveness of the capsule core are improved, and the long-acting self-repairing function is achieved.
本发明公开了一种用于水泥基路面自修复的微胶囊粉末及其制备方法，属于路面修复技术领域，微胶囊粉末包括囊芯和囊壁，囊芯为高粘结性高韧性纳米改性环氧树脂，高粘结性高韧性纳米改性环氧树脂的制备原料包括纳米硅灰、超弹性合金纳米微弹簧、生活垃圾纳米生物炭、稀释剂、液晶环氧树脂。制备方法包括：制备高性能脲醛树脂；制备高粘结性高韧性纳米改性环氧树脂乳液；将高粘结性高韧性纳米改性环氧树脂乳液滴加入高性能脲醛树脂中，发生乳化反应，调节pH为酸性，发生缩聚反应，然后发生交联固化反应，干燥后得到用于水泥基路面自修复的微胶囊粉末。本发明可以有效降低囊芯的模量，提高囊芯的柔韧性和粘结性，具有长效自修复功能。
Microcapsule powder for cement-based pavement self-repairing and preparation method thereof
The invention discloses microcapsule powder for self-repairing of a cement-based pavement and a preparation method of the microcapsule powder, and belongs to the technical field of pavement repairing. The microcapsule powder comprises a capsule core and a capsule wall, the capsule core is high-cohesiveness and high-toughness nano modified epoxy resin, and the capsule wall is made of high-viscosity and high-toughness nano modified epoxy resin; the high-cohesiveness and high-toughness nano modified epoxy resin is prepared from the following raw materials: nano silica fume, superelastic alloy nano micro-springs, household garbage nano biochar, a diluent and liquid crystal epoxy resin. The preparation method comprises the following steps: preparing the high-performance urea-formaldehyde resin; preparing a high-cohesiveness and high-toughness nano modified epoxy resin emulsion; the preparation method comprises the following steps: dropwise adding the high-cohesiveness and high-toughness nano-modified epoxy resin emulsion into high-performance urea-formaldehyde resin, carrying out an emulsion reaction, adjusting the pH value to be acidic, carrying out a condensation polymerization reaction, then carrying out a cross-linking curing reaction, and drying to obtain the microcapsule powder for cement-based pavement self-repairing. The modulus of the capsule core can be effectively reduced, the flexibility and cohesiveness of the capsule core are improved, and the long-acting self-repairing function is achieved.
本发明公开了一种用于水泥基路面自修复的微胶囊粉末及其制备方法，属于路面修复技术领域，微胶囊粉末包括囊芯和囊壁，囊芯为高粘结性高韧性纳米改性环氧树脂，高粘结性高韧性纳米改性环氧树脂的制备原料包括纳米硅灰、超弹性合金纳米微弹簧、生活垃圾纳米生物炭、稀释剂、液晶环氧树脂。制备方法包括：制备高性能脲醛树脂；制备高粘结性高韧性纳米改性环氧树脂乳液；将高粘结性高韧性纳米改性环氧树脂乳液滴加入高性能脲醛树脂中，发生乳化反应，调节pH为酸性，发生缩聚反应，然后发生交联固化反应，干燥后得到用于水泥基路面自修复的微胶囊粉末。本发明可以有效降低囊芯的模量，提高囊芯的柔韧性和粘结性，具有长效自修复功能。
Microcapsule powder for cement-based pavement self-repairing and preparation method thereof
用于水泥基路面自修复的微胶囊粉末及其制备方法
DANG YAN (author) / TIAN JUNBAO (author) / CHEN DE (author) / DAI YUDONG (author) / LUO LIJING (author) / ZHAO SHENG (author) / XU HAILIN (author) / CHEN ZHIZHONG (author) / TIAN LU (author) / ZHAO JIANXIONG (author)
2024-08-09
Patent
Electronic Resource
Chinese
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